CN114475745A

CN114475745A - Hand cart

Info

Publication number: CN114475745A
Application number: CN202110084808.2A
Authority: CN
Inventors: 藤井昭司; 远泽真一
Original assignee: Endou Shoji Co ltd
Current assignee: Endou Shoji Co ltd
Priority date: 2020-10-27
Filing date: 2021-01-21
Publication date: 2022-05-13
Anticipated expiration: 2041-01-21
Also published as: KR20220056081A; KR102406239B1; JP2022070322A; CN114475745B; JP6853407B1

Abstract

A cart capable of stopping or parking (parking) by automatically operating a brake when the cart is separated, according to the situation at that time, without requiring a lot of effort and without intentionally operating the brake, depending on the posture of a person who needs to be helped. The cart of the present invention includes a brake device provided with a parking brake and a brake, a parking brake operating member and a handle brake operating member are provided on a handle frame, a rear wheel mounting member is defined at the other end of a rear wheel support frame, a rear wheel and a brake device are fixed to the rear wheel mounting member, the brake device includes a parking brake and a brake, and the parking brake operating member and the parking brake and the handle brake operating member are connected by a brake cable, respectively.

Description

Hand cart

Technical Field

The present invention relates to a cart, and more particularly, to a cart for a person who needs assistance from another person (hereinafter, referred to as a person who needs assistance) because the person has weak legs due to disabled feet, elderly people, or the like, and the cart includes a forearm support base and is suitable for walking training or the like while enjoyably shopping by placing a forearm on the support base and holding a handle.

Background

The present applicant has developed a cart that allows a user such as a person who needs assistance to perform walking training while enjoyably shopping in a supermarket or the like, and has obtained a patent (patent document 1). The cart according to the present invention includes a pair of support frames opposed to each other, a pair of front wheels and a pair of rear wheels being fixed to the left and right and the front and rear of each other at a predetermined distance, a pair of support frames fixed to the support frames and inclined from the support frames toward the rear wheel side at a predetermined angle (an angle larger than 90 degrees), a handle frame bridging between the support frames and provided with a forearm support table, and a basket table protruding toward the front wheel side.

According to this cart, since the support frame is erected on the support frame so as to be inclined upward from the horizontal direction by an angle larger than 90 degrees, the front arm support base can be disposed forward in the traveling direction including directly above the rear wheel, and therefore, it is possible to prevent the cart and the person from falling backward when the front arm or the elbow is placed on the front arm support base and the front wheel is tilted up by, for example, bearing the entire weight, and further, it is possible to select the angle of the basket base to an optimum angle by setting the angle of each support frame to a predetermined angle, and thus it is possible to suppress or prevent the center of gravity of the cart from moving backward and tilting forward in the traveling direction when an article is placed on the basket base.

The cart is already being sold and used by many people, and various expectations have been made from many users, and the following improvements have been found. This is because, although this cart has been used mainly by a person who needs help in the house, it is convenient for a healthy person to rest by putting his or her elbow up when he or she is tired, and therefore, it is used outdoors in recent years, and the range of users is widened. As the use places and users expand, various customer users including those who need help and health care have come to expect a great deal of safety and safety.

One of these desiderata is the attachment of a brake device. In indoor use, such as when a helper is required to shop in a supermarket or the like, it is possible that the display merchandise of the cabinet is seen by the eyes and the hands are extended to grasp it, so that the unconscious hands or elbows leave the cart. In such a case, the cart can move freely when the floor surface is inclined, and can also move when another shopping customer touches it. Even if the user wants to catch up and stop the cart with attention, the user with physical disability has difficulty in grasping the moving cart and is too difficult to use the cart, so that the cart may collide with an object, a person or fall down, and in the worst case, the user may be injured. In the case of a behavior of leaving the cart during traveling, it is necessary for the helper to perform the behavior unconsciously or unintentionally without anticipation of the movement of the cart or the like.

Further, the cart is used outdoors in a wide range, and travels not only on sidewalks but also on lanes, but since many roads and the like go up and down a slope or a curve, it is accelerated and self-propelled arbitrarily on a steep slope, and it is difficult to control the cart. As a result, the possibility of collision with an article or a person is further increased compared to indoor use, and in the worst case, an accident may occur.

In view of the above, there is a strong demand from the customer that the brake device a and the brake device B be attached, and when the user such as a person needing help or the like leaves the cart unintentionally or unconsciously, the cart is automatically stopped, that is, the brake is operated to stop the cart to prevent contact with or collision with the article, and the brake device B is subjected to speed control and emergency stop for avoiding acceleration on a steep slope or the like, self-running, and contact with or collision with the article, person, or the like.

However, a technology for attaching a brake device to a cart such as a walking assist cart, a cart, or a shopping cart (hereinafter, these are also collectively referred to as a cart) has been described in many patent documents and is already known.

For example, the following patent document 2 (japanese patent No. 5916932) and patent document 3 (japanese patent No. 6495855) disclose walking assist vehicles provided with a brake device. The walking assist vehicle includes a forearm support table for supporting the upper body with respect to the elbow, a handle to be gripped during walking, a brake unit for locking the rear wheel, and a handle brake for operating the brake unit. According to this walking assist vehicle, the front wheels are forced to pass over the steps, so the structure can be simple, and the steps can be passed over while maintaining the posture of the user walking on the flat surface.

Further, patent document 4 (japanese patent application laid-open No. 2014-177219) discloses a hand push type vehicle including a seat section. In this hand propelled vehicle, the seat section is pivotally supported by the main body of the walker so that the turning-up posture and the sitting posture of the seat section can be selected by the turning-up posture of the seat section, and the seat section and the brake section are connected via the link mechanism, so that the brake shoe of the brake section is pressed against the rear wheel and the rear wheel is in a locked state when the seat section is in the sitting posture, and the rear wheel is not locked unless the brake lever is operated when the seat section is in the turning-up posture. According to this hand-push type vehicle, even if the wheel is locked by forgetting to operate the brake lever provided on the handle portion or the brake lock mechanism by the brake lever is not provided, the wheel can be reliably locked when sitting on the seat portion.

Patent document 5 (japanese patent application laid-open No. 9-123915) discloses a shopping cart provided with a brake device. The shopping trolley enables the hand-push type trolley to support a shopping basket for use even if the feet of the hand-push type trolley are slightly disabled or the old people can sit in the tired condition.

Further, patent document 6 (japanese patent laid-open No. 2012-170715) discloses a wheelchair including a brake device that can be individually operated by a helper or a passenger.

Prior art documents

Patent document

Patent document 1: japanese patent No. 6667086

Patent document 2: japanese patent No. 5916932

Patent document 3: japanese patent No. 6495855

Patent document 4: japanese patent laid-open publication No. 2014-177219

Patent document 5: japanese laid-open patent publication No. 9-123915

Patent document 6: japanese patent laid-open No. 2012 and 170715

Disclosure of Invention

Problems to be solved by the invention

The following is an examination of the carts disclosed in patent documents 2 to 6. First, although the walking assist vehicles disclosed in patent documents 2 and 3 each include an actuator device, these brake devices correspond to the brake device B, that is, a device that performs step-over or speed control during traveling, and do not have the function of the brake device a. The hand-push type vehicles and hand-push type carts disclosed in patent documents 4 and 5 also include a brake device, but the brake device also corresponds to the brake device B and does not have the function of the brake device a. The wheelchair disclosed in patent document 6 also includes a brake device that is operated by a helper or a passenger alone, and does not have the function of the brake device a.

As described above, the hand carts disclosed in patent documents 2 to 6 are all provided with brake devices, but none of these brake devices has a brake function of automatically stopping the hand cart when a user such as a person needing help or the like unintentionally or unintentionally leaves the hand cart, and cannot respond to the urgent needs of the customer. Therefore, the inventors of the present invention have studied how to improve the cart of patent document 1 (i.e., the cart developed by the inventors) so as to provide a brake function that can be operated so that the cart automatically stops when a user such as a person who needs help or the like leaves the cart unintentionally or unconsciously.

As a result, the cart disclosed in patent document 1 is used by pressing the elbow against the forearm support base, and therefore, focusing on the forearm support base, that is, with regard to the normal use mode or posture, when the cart is attached to a brake device which can travel by releasing the brake function when the elbow is placed, and can stop or park (park) by activating the brake when the elbow is removed, the cart can respond to the user's desire, and the present invention has been completed.

Accordingly, an object of the present invention is to provide a cart including a parking brake and a brake, in which the parking brake is automatically operated to stop or park when a user such as a helper leaves the cart unintentionally or unconsciously, thereby preventing contact with or collision with an object or the like, and in which the speed control or temporary stop is performed by operating the brake during traveling, thereby enabling safe and safe use.

Another object of the present invention is to provide a cart in which a brake device is compactly assembled between two fork frames of a rear wheel mounting member that fixes left and right rear wheels, thereby preventing a user from rolling in clothes, such as a hem, by the two fork frames without providing a special rolling-in prevention cover.

Another object of the present invention is to provide a cart which can be used for shopping with pleasure or sitting and resting when a person is tired by providing an article placing table or a foldable chair.

Means for solving the problems

In order to achieve the above object, a cart according to a first aspect of the present invention includes:

A pair of front wheels and rear wheels fixed at predetermined intervals in the front, rear, left, and right directions in the traveling direction;

a front wheel support frame that supports front left and right wheels in front of the traveling direction, and a rear wheel support frame that extends from the front wheel support frame and supports rear left and right wheels behind the traveling direction;

a pillar frame erected upward from the front wheel support frame at a predetermined angle; and

a handle frame extending from the strut frame,

the handle frame is provided with a forearm supporting table in front, so that a forearm can be placed on the forearm supporting table during driving,

it is characterized in that the preparation method is characterized in that,

a parking brake operating member and a handle brake operating member that is operated by a handle brake lever are provided on the handle frame, a rear wheel attachment member is fixed to the other end of the rear wheel support frame, the rear wheel and a brake device including a parking brake and a brake are fixed to the rear wheel attachment member, the parking brake operating member and the parking brake and the handle brake operating member and the brake device are connected by a brake cable, respectively,

When the weight of the front arm is removed from the pressure-receiving weight, the parking brake is operated to stop or park the vehicle, and during running, the handle brake lever is gripped to operate the brake to apply the brake.

A cart according to a second aspect of the present invention is the cart according to the first aspect, wherein the rear wheel attachment member includes a two-fork frame that is branched into two parts with a predetermined gap therebetween, and a parking brake and a brake that constitute the brake device are provided in the gap between the two-fork frame.

A cart according to a third aspect of the present invention is the cart according to the first or second aspect, wherein a space of a predetermined size is formed between a front end portion of the front wheel support frame and a base portion of the column frame, and the space serves as a platform on which an article is placed.

A cart according to a fourth aspect of the present invention is the cart according to any one of the first to third aspects, wherein a foldable chair is provided between the column frame and the rear wheel support frame.

A cart according to a fifth aspect of the present invention is the cart according to any one of the first to fourth aspects, wherein a basket platform on which a shopping basket is placed is attached to one of the handle frame and the post frame by a fixing mechanism that is attachable and detachable.

A cart according to a sixth aspect of the present invention is the cart according to any one of the first to fifth aspects, wherein the front wheel support frame and the pillar frame are formed of an integral member, the handle frame is adjustably coupled to the pillar frame, and the front wheel support frame, the pillar frame, the handle frame, and the rear wheel support frame are each formed of a hollow tube.

Effects of the invention

The cart according to the first aspect of the present invention includes the brake device including the parking brake and the brake, and therefore, depending on the posture of use of the user such as a person requiring assistance, who is difficult to walk or inconvenient, the brake can be automatically operated to stop or park (park) when the user leaves the cart in any situation, regardless of the situation, and the vehicle can be safely and securely used by performing speed control or temporary stop while the user is traveling, without requiring any effort or any intentional means such as handle operation.

In the cart according to the second aspect of the present invention, the rear wheel attachment member includes the two-fork frame branched into two parts with a predetermined gap therebetween, and the parking brake and the brake constituting the brake device are provided in the gap between the two-fork frame, so that the brake device can be easily assembled, and the two-fork frame can prevent the user from rolling in the clothes due to the downward swinging or the like without providing a special cover.

According to the cart of the third aspect of the present invention, the platform can be formed by the space between the front wheel support frame and the column frame, and the article placed on the article platform can be supported in a stable state when the article is placed on the platform, and specifically, the article placed on the article platform can be supported in the most stable state even if the article is a heavy object heavier than the basket platform placed above.

In the cart according to the fourth aspect of the present invention, since the foldable chair is provided between the column frame and the rear wheel support frame, the foldable chair can be easily installed, and the user can sit down to rest when tired.

In the cart according to the fifth aspect of the present invention, walking training or the like can be performed while enjoyably shopping by placing the shopping basket on the basket platform.

In the cart according to the sixth aspect of the present invention, the wheel support frame and the column frame are formed of an integral member, or the handle frame is adjustably connected to the column frame, and these frames and the rear wheel support frame are each formed of a hollow pipe, so that the manufacturing is easy and the appearance is improved.

Drawings

Fig. 1A and 1B show a cart according to embodiment 1 of the present invention, in which fig. 1A is a front view and fig. 1B is a right side view.

Fig. 2A and 2B show a handle frame of a cart according to embodiment 1, in which fig. 2A is a right side view and fig. 2B is a front view.

Fig. 3A and 3B show a forearm support table of a cart according to embodiment 1, in which fig. 3A is a plan view and fig. 3B is a front view.

Fig. 4A, 4B, and 4C show a parking brake operating member of a cart according to embodiment 1, in which fig. 4A is a front view, fig. 4B is a right side view, and fig. 4C is a bottom view.

Fig. 5A, 5B and 5C illustrate an upper hinge frame constituting the parking brake operating member of fig. 4A, 4B and 4C, in which fig. 5A is a plan view, fig. 5B is a rear view and fig. 5C is a right side view.

Fig. 6A, 6B and 6C illustrate the lower hinge frame of fig. 5A, 5B and 5C, wherein fig. 6A is a plan view, fig. 6B is a front view and fig. 6C is a right side view.

Fig. 7A and 7B show a brake operating member of a cart according to embodiment 1, in which fig. 7A is a front view, and fig. 7B is a side view seen from obliquely right below.

Fig. 8A, 8B, and 8C illustrate one hinge frame of fig. 7A and 7B, in which fig. 8A is a front view, fig. 8B is a bottom view, and fig. 8C is a right side view.

Fig. 9A, 9B, and 9C show the other hinge frame of fig. 7A and 7B, in which fig. 9A is a top view, fig. 9B is a bottom view, and fig. 9C is a front view of fig. 9A.

Fig. 10 is a front view of the brake device.

Fig. 11A and 11B show the brake device of fig. 10, in which fig. 11A is a top view and fig. 11B is a bottom view.

Fig. 12A, 12B, and 12C show an operating arm of the parking brake, in which fig. 12A is a front view, fig. 12B is a plan view, and fig. 12C is a right side view of fig. 12A.

Fig. 13A and 13B show the base plate, in which fig. 13A is a front view and fig. 13B is a right side view of fig. 13A.

Fig. 14A and 14B show a cart according to embodiment 2 of the present invention, in which fig. 14A is a front view and fig. 14B is a plan view.

Fig. 15A is an enlarged view of a front portion of the cart according to embodiment 2, and fig. 15B is an enlarged view of a right side portion.

Fig. 16A, 16B, and 16C show a chair foot frame of a cart according to embodiment 2, in which fig. 16A is a front view, fig. 16B is a plan view, and fig. 16C is a right side view.

Fig. 17A, 17B, and 17C show a table base of a cart according to embodiment 2, in which fig. 17A is a front view, fig. 17B is a bottom view, and fig. 17C is a right side view.

Fig. 18A and 18B are explanatory views illustrating a folded state of a folding chair attached to a cart according to embodiment 2, in which fig. 18A is a front view and fig. 18B is a right side view.

Description of reference numerals:

10. a cart;

a body frame;

a front wheel support frame;

a stud frame;

a handle frame;

a rear wheel support frame;

15A, 15b.. a pair of frames;

an upper frame portion;

a lower frame portion;

a rear wheel mounting member;

a joint;

16b, 16c.

16₁.., an upper branch frame portion;

16₂.., a lower branch frame part;

16₃.., bending the frame part;

a front wheel;

a rear wheel;

a brake device;

a forearm support table;

a parking brake operating member;

upper hinge joint;

an outer cartridge;

lower hinge joint;

an arm spring;

braking a brake operating member;

a hinge member;

a handle brake lever;

a brake device;

a base plate;

a parking brake;

a parking brake operating arm;

34. A brake shoe;

35. a coil spring;

a brake actuator;

braking a brake boom;

folding a chair;

a chair foot frame;

a stand;

c1, C2... brake cable;

a cable adjuster;

w1, W2.

Detailed Description

Hereinafter, a cart according to an embodiment of the present invention will be described with reference to the drawings. However, the embodiments described below are exemplary embodiments for embodying the technical idea of the present invention, and the present invention is not intended to be limited thereto, and can be equally applied to other embodiments included in the technical idea. In addition, in some of the drawings, there is a position where a surface is not shown in perspective in order to make the internal configuration clear.

(embodiment mode 1)

An outline of a cart according to embodiment 1 of the present invention will be described with reference to fig. 1A and 1B. Fig. 1A and 1B show a cart according to embodiment 1 of the present invention, in which fig. 1A is a front view and fig. 1B is a right side view.

The cart 10 according to the embodiment of the present invention includes a pair of front wheels 17 and rear wheels 18 fixed to the front, rear, left, and right sides in the traveling direction at a predetermined interval, a front wheel support frame 12 supporting the front left and right front wheels, a rear wheel support frame 15 extending from the support frame and supporting the rear left and right rear wheels, a pillar frame 13 rising upward from the front wheel support frame 12 at a predetermined angle, and a handle frame 14 extending from the pillar frame 13. The handle frame 14 is provided with a forearm support base 21 in front of the frame and a handle grip 14f in front of the forearm support base 21, and when the cart 10 is driven, the user puts the forearm on the forearm support base 21 and presses the body weight thereon, and then rides the hand on the handle grip 14 f.

The handle frame 14 is provided with a parking brake operating member 22 and a handle brake operating member 27 operated by a handle brake lever 29. A rear wheel mounting member 16 is fixed to the other end of the rear wheel support frame 15, and a rear wheel 18 and a brake device 30 are fixed to the rear wheel mounting member 16. The brake device 30 includes a parking brake 32 and a brake 36, and the parking brake operating member 22 and the parking brake 32 and the handle brake operating member 27 and the brake 36 are connected by brake cables C1 and C2, respectively.

In the cart 10 according to embodiment 1, when the front arm is placed on the front arm support base 21 and the weight is pressed against the upper surface, the parking brake operating member 22 is operated by the weight to release the parking brake 32, so that the cart can be driven, and when the weight pressing is removed, the parking brake 32 is operated, so that the cart 10 can be stopped or parked. Further, the cart 10 has a structure in which the brake 36 is actuated to perform braking by gripping the grip holding portion 14f and the grip brake lever 29 together during traveling.

According to the cart having such a configuration, when a user such as a helper leaves the cart unintentionally or unintentionally, the parking brake 32 can be automatically operated to stop or park the cart 10, and thus contact with or collision with an object or the like can be prevented. Further, since the speed control or the temporary stop can be performed by operating the brake actuator 36 during the travel of the cart 10, the cart can be safely and securely used. That is, the parking brake 32 can be automatically operated to stop or park (park) when the helper or the like leaves the cart 10 in any situation, without requiring any effort or any intentional means such as handle manipulation, depending on the use posture of the helper or the like, which is difficult or inconvenient to walk. Further, the cart 10 can be used safely and securely by performing speed control and temporarily stopping during traveling.

Next, the respective components constituting the cart 10 of embodiment 1 will be described with reference to fig. 1A to 13B, while making other features clear. First, the main body frame 11 forming the framework of the cart 10 will be described with reference to fig. 1A and 1B.

The main body frame 11 is a frame to which components such as the front and rear wheels 17, the rear wheel 18, the forearm support base 21, and the brake device 30 (see fig. 10) are attached, and includes a front wheel support frame 12 extending substantially horizontally in the traveling direction forward and downward and fixing a pair of the left and right front wheels 17, a support frame 13 provided to stand obliquely at a predetermined angle (obtuse angle) from the front wheel support frame, a handle frame 14 extending upward from the support frame 13, and a rear wheel support frame 15 extending rearward and leftward from the base portion of the support frame 13 and fixing the rear wheel 18.

The rear wheel support arm 15 is constituted by a pair of

frames

15A, 15B (fig. 1B) facing each other, and the pair of

frames

15A, 15B are spaced apart from each other by a distance slightly wider than the width of the front wheel support frame 12 when extending rearward and left and right from the base portion of the pillar frame 13. According to this configuration, the distance between the front wheels 17 and the rear wheels 18 coupled to the support frames 12 and 13 is small, and the distance between the rear wheels 18 is large, so that the front wheels 18 side and the rear wheels 18 side form an isosceles trapezoid in plan view, with the top side being the front wheel 18 side and the bottom side being the rear wheel 18 side. This provides the most stable shape in terms of gravity, and ensures stability and safety while maintaining strength even when the entire body is pressed against the forearm support base 21.

In these frames 12 to 15, the front wheel support frame 12 and the pillar frame 13 are formed of an integral member, the handle frame 14 and the pillar frame 13 are coupled via a coupling mechanism capable of adjusting the height, and the rear wheel support frame 15 is fixed to the pillar frame 13 and is formed of a hollow pipe or the like having a predetermined thickness and length. Of these frames, the front wheel 17 is attached to the front wheel support frame 12, the rear wheel 18 and the brake device 30 are attached to the rear wheel support frame 15, and the forearm support base 21 is attached to the handle frame 14. The frames 12 to 15 may be formed of a single member, and the material of the hollow tube or the like may be any other material, but a metal material, a resin material, or the like is preferable. In particular, since the frames 12 to 15 are formed by hollow pipes, the production is easy and the appearance is improved.

The following describes the frame structure and the assembly of the components to the frames in this order. First, the front wheel support frame 12 and the components mounted on the front wheel support frame 12 will be described with reference to fig. 1A and 1B.

The front wheel support frame 12 is composed of a pair of substantially parallel frame portions spaced apart from each other at a predetermined distance in the left-right direction, and a bent portion connecting front ends (traveling direction) of the frame portions, and has a substantially horizontal U-shape in a plan view from directly above. A front wheel 17 is fixed to the front wheel support frame 12, and a space portion of a predetermined size is formed in a substantially horizontal U-shaped portion in plan view between a bent portion at a front end and a bent portion provided upright on the pillar frame 13, and the space portion serves as an article placement table on which articles are placed.

The article table can prevent articles having a predetermined shape, such as a shopping basket and a suitcase. Further, the article placed on the article placing table is supported at a plurality of points by the isosceles trapezoid portion, and even if the article is heavier than the article placed on the basket platform 20 described later, the article placed on the article placing table can be supported in the most stable state.

The dimensions of these portions are shown as an example, and the gap between the front wheel support frames 12 is 28cm, the length from the front end bent portion of the front wheel support frame 12 to the portion where the arc of the strut frame 13 starts to be drawn is 25.63cm, the distance from the front end bent portion of the front wheel support frame 12 to the attachment portion of the front wheel 17 is 13cm, and the thickness (diameter) of the pipe is 3 cm. Further, since the basket platform 19 comes into contact with the basket platform 19 when the article to be placed is large, the basket platform 19 is preferably detachably attached to the handle frame 14. The basket platform 19 may be detachably mounted to the post frame 13.

A pair of front wheels 17 are fixed to the left and right of the front wheel support frame 12. The front wheels 17 each have a predetermined diameter and width, and are fixed to the pair of

frame portions

12A and 12B (fig. 1B) facing each other by a rotatable fixing and supporting fitting. The front wheel 17 is formed of a circular frame having an axle and a rubber tire fitted to the outer periphery of the frame. The front wheel 17 is also referred to as a caster. The front wheel 17 is attached to be rotatable about a support shaft to which the support fittings are fixed, and the front wheel 17 is rotated about the support shaft during turning or steering. The front wheel support frame 12 is higher than an axle of a rear wheel 18 described later from the floor surface in a state where the front wheel 17 is attached. This difference in height can suppress forward tilting when the tip abuts against the stepped portion.

The pillar frame 13 is configured by a pair of opposing pillar frames 13A and 13B (fig. 1B) that are provided obliquely upward at a predetermined angle (obtuse angle) from the front wheel support frame 12 to the rear wheel side by a predetermined length, and a structure in which the pillar frames 13A and 13B are coupled by a connecting bar 131, and the handle frame 14 and the rear wheel support frame 15 are attached to the pillar frames 13A and 13B.

The handle frame 14 is inserted into hollow holes formed at the front ends of the two

pillar frames

13A and 13B so as to be movable up and down, and is adjusted to a predetermined height by an adjustment fitting. The adjustment fitting is, for example, a structure in which a plurality of adjustment holes are provided at predetermined intervals in a hollow tube, and a stopper member is inserted and fixed into the holes, or a structure in which the diameter of the hollow tube is narrowed to fix the stopper member.

The rear wheel support arm 15 has a pair of rear wheel support frames 15A and 15B (fig. 1B) extending rearward from the base portion of the pillar frame 13 and spaced apart by a distance slightly wider than the width of the front wheel support frame 12, and is substantially arcuate in side view, and the rear wheels 18 are fixed to the pair of rear wheel support frames 15A and 15B, respectively, and the brake device 30 is attached thereto.

Next, the handle frame 14 will be described with reference to fig. 1A and 1B and fig. 2A and 2B. Fig. 2A and 2B show a handle frame of the cart 10 according to embodiment 1, in which fig. 2A is a right side view and fig. 2B is a front view.

As shown in fig. 2A and 2B, the handle frame 14 has a pair of opposed connection extensions 14a of a predetermined length which are connected upward from the upper end of the pillar frame 13 and are used for height adjustment, a pair of opposed basket installation portions 14B of a predetermined length which extend from the connection extensions and are bent at a predetermined angle toward the rear wheel 18 side, a pair of opposed connection portions 14c which extend from the basket installation portions and are folded back toward the front wheel 17 side, a pair of opposed table installation portions 14d which extend from the connection portions and are bent toward the front wheel 11 side with a predetermined gap from the basket installation portions, an extension portion 14e which extends from the table installation portions in the forward traveling direction, and a handle portion (also referred to as a handle grip portion) 14f which is bridged between the extension portions, the handle frame 14 is bent in a substantially horizontal U-shape in side view and is formed of an integral member (hollow pipe).

The handle portion 14f is formed of a rod-shaped portion that is attached so as to protrude from both end portions of the forearm support base 21 in the traveling direction and is bent into a predetermined shape. The grip portion 14f is a portion that is gripped by a hand to operate the cart, and the hand can grip the grip portion by a hand to apply a force and allow the cart to travel easily and safely.

A handle basket 20 having a predetermined size and shape is fixed to the handle frame 14 between the basket mounting portion 14b and the forearm support mount mounting portion 14 d. The carrying basket 20 is a box of a size that can be placed into a small item such as a purse, a key, etc. The handle frame 14 is substantially horizontal U-shaped in side view, but may be bent substantially horizontal U-shaped toward the front wheel side without a gap.

The handle frame 14 is equipped with a basket stage 19, a front arm support table 21, a parking brake operating member 22, and a brake operating member 27. The handle frame 14 is positioned in relation to the basket stage 19 in such a manner that when the basket placed on the basket stage 19 is lifted and taken out, the basket does not collide with the handle frame 14 to hinder the taking out. This method is performed by adjusting the mounting position, angle, and the like of the basket table, changing the shape of the frame, and the like.

The basket platform 19 is detachably attached to the connection extension portion 14a of the handle frame 14, that is, to the connection extension portion 14a using a detachable fixing member. The attachment may be performed by tilting the projecting arm of the basket platform 19 upward at a predetermined angle with respect to the horizontal line, so that the contents in the shopping basket can be easily observed. The angle is preferably set to 10 ° to 20 ° in consideration of the shift of the center of gravity. When the basket platform 19 is fully loaded, the center of gravity moves toward the rear wheel 18, and therefore, by setting the angle to the aforementioned range, the user can lean forward the cart 10 when pressing against the forearm support base, or particularly when the front wheel 17 abuts against the step portion.

Next, the forearm support table 21, the parking brake operating member 27 and the brake operating member 29 will be described with reference to fig. 3A to 9C. Fig. 3A and 3B show a forearm support table of a cart 10 according to embodiment 1, in which fig. 3A is a plan view and fig. 3B is a front view. Fig. 4A, 4B and 4C also show the parking brake operating member, where fig. 4A is a front view, fig. 4B is a right side view and fig. 4C is a bottom view. Fig. 5A, 5B and 5C illustrate an upper hinge frame constituting the parking brake operating member of fig. 4A, 4B and 4C, in which fig. 5A is a plan view, fig. 5B is a rear view and fig. 5C is a right side view. Fig. 6A, 6B and 6C illustrate the lower hinge frame of fig. 5A, 5B and 5C, wherein fig. 6A is a plan view, fig. 6B is a front view and fig. 6C is a right side view. Fig. 7A and 7B similarly show the brake operating member, where fig. 7A is a front view and fig. 7B is a side view seen from obliquely lower right. Fig. 8A, 8B, and 8C show the hinge frame of one of fig. 7A and 7B, in which fig. 8A is a front view, fig. 8B is a bottom view, and fig. 8C is a right side view. Fig. 9A, 9B, and 9C show the other hinge frame of fig. 7A and 7B, in which fig. 9A is a top view, fig. 9B is a bottom view, and fig. 9C is a front view of fig. 9A.

As shown in fig. 3A and 3B, the forearm support base 21 has a front surface 21a and a rear surface 21B of a predetermined size and area, and a predetermined thickness, the front surface 21a is provided with substantially semicircular projections a and B at both ends in the longitudinal direction, and the forearm support base 21 is formed of a substantially rectangular parallelepiped of a predetermined thickness, is substantially saddle-shaped in side view, and is formed of a resin molded body of a predetermined color. Further, a screw hole to which the parking brake operating member 22 is fixed is provided in the rear surface 21 b. The forearm support base 21 is attached to a position directly above the rear wheel 18 or on the front wheel 17 side. By providing the forearm support base at this position, even if the user presses against the forearm support base, the rear wheel is positioned rearward of the forearm support base and can support the weight of the user, thereby preventing the user and the cart from leaning forward. In addition, the protruding portions on both sides prevent the user's elbows and the like from slipping off.

As shown in fig. 4A, 4B and 4C, the parking brake operating member 22 includes an upper hinge frame 23 having an inverted U-shaped cross section and a predetermined length, a lower hinge frame 25 fitted into an inverted U-shaped opening of the upper hinge frame 23, and a side-view, horizontal V-shaped arm spring 26 fixed to one end of the upper hinge frame 23 and pushing up one end of the upper hinge frame 23 by elastic force.

As shown in fig. 5A, 5B, and 5C, the upper hinge frame 23 has a rectangular top plate portion 23a having a predetermined width and length, and a pair of opposing side plate portions 23B and 23C hanging from both ends of the top plate portion 23a by a predetermined length, and has an opening at the end edge of each side plate portion sized to be inserted into the lower hinge frame, is formed of a U-shaped groove body having an inverted U-shaped cross section, and is formed by bending a metal plate material. Mounting holes are formed in the top plate portion 23a and the side plate portions 23b and 23c, and an outer holder 24 is fixed to an outer end of one side plate portion 23 c.

As shown in fig. 6A, 6B, and 6C, the lower hinge frame 25 has a rectangular bottom plate portion 25a having a predetermined width and length, and a pair of opposing side plate portions 25B and 25C erected from both ends of the bottom plate portion by a predetermined length, and the openings of both side plate portions are sized to be inserted into the openings of the upper hinge frame 23, are formed of U-shaped groove bodies having a U-shaped cross section, and are formed by bending a metal plate material.

The parking brake operating member 22 is assembled by first attaching the lower hinge frame 25 to the platform attachment portion 14d of the handle frame 14, covering the upper hinge frame 23 on the lower hinge frame 25, and inserting the lateral V-shaped arm spring 26 therein By means of fulcrum bolts 26₁A pivotal support is performed. The upper hinge frame 23 is fixed to the rear surface of the forearm support base 21, and the cable W1 (fig. 4A) of the brake cable C1 is fixed to the outer cassette 24.

With this assembly, the forearm support base 21 is supported by the bolt 26₁Which is a fulcrum, and the rear end (rear wheel side) is pushed up by a prescribed angle by the spring force of the horizontal V-shaped arm spring 26 via the upper hinge frame 23. The state in which the forearm support base 21 is pushed up by a predetermined angle is a state in which the cart 10 according to embodiment 1 is not used or the forearm is not placed on the forearm support base, and the rear wheel 18 is stopped by the parking brake 32. The angle is preferably in the range of 10 to 20 degrees. By setting the angle range to this angle range, the parking brake 32 can be operated smoothly without interfering with forearm placement.

Since the front arm support base 21 is tilted and pushed up at a predetermined angle, when the front arm support base 21 is not loaded with the front arm and is not loaded with the weight, the brake wire W1 of the brake cable C1 is pulled up by the spring force of the arm spring 26 to put the parking brake 32 (fig. 10) in an active state, and when the front arm is loaded with the weight, the parking brake operating member 22 is pushed down to release the brake. Since the parking brake 32 may not be used by a healthy person or the like, it is preferable to provide a lock mechanism that locks in advance the parking brake operating member 22. Although not shown, the locking mechanism may be a fixed stopper mechanism or the like that lowers the forearm support base 21 and stops it at that position.

As shown in fig. 7A and 7B, the brake actuator 27 includes a hinge member 28 fixed to the handle frame 14, and a brake lever 29 attached to the hinge member 28. The hinge member 28 is composed of a rotary hinge frame 28A and a fixed hinge frame 28B, the handle bar 29 and the brake cable C2 are attached to the rotary hinge frame 28A, and the fixed hinge frame 28B is fixed to the handle frame 14.

As shown in fig. 8A, 8B and 8C, the rotary hinge frame 28A includes a substantially semicircular rotary plate portion 28A and a rotary plate portion rotated by the rotationA side plate 28b having one end of the plate standing at a substantially right angle, and a pivot support hole 28 formed in the center of the rotary plate on the side of the side plate 28b₁Further, a mounting hole 28 is formed on one end side of the side plate portion 28b₂. An outer cartridge a1 is fixed to the rotary plate portion 28a, and an end of the stopper rod 29 is fixed to an adjacent position.

As shown in fig. 9A, 9B and 9C, the fixed hinge frame 28B includes a plate-shaped portion 28A ' having a substantially semicircular shape similar to the shape of the rotating plate portion 28A of the rotating hinge frame 28A, a fixed portion 28B ' bent at a right angle from the plate-shaped portion, and a hanging portion 28C ' bent downward from the fixed portion, and a pivot support hole 28 is formed in the center of the hanging portion ₃The pivot support hole penetrates the plate-like portion.

Regarding their assembly, first, the hinge member 28 is assembled. In this assembly, the rotary hinge frame 28A (fig. 7B) is inserted into the fixed hinge frame 28B, and the pivot support bolt 28 is inserted₁(FIG. 7B) penetrates the pivot support hole 28₃、28₁Thereby forming an assembly. Next, the fixing portion 28B' of the three-dimensional set of fixed hinge frames 28B is fixed to the handle frame 14 by brazing or the like. Note that the rotation range of the rotary hinge frame 28A is adjusted by an adjustment screw X2 (fig. 7A). The brake cable C2 is attached to the outer holder a2 of the fixed hinge frame 28B, and the brake wire W2 is attached to the outer holder a1 of the rotary hinge frame 28A.

At the time of this mounting, the handle lever 29 fixed to the rotary hinge frame 28A is adjusted to be located at the position "i" by the spring force of the coil spring 35 (fig. 10). The position "i" is a state in which the brake 36 (fig. 10) is not activated, and when the brake moves to the positions "ii" and "iii", a braking force is applied according to the movement. This is effected by the hand grip condition to brake the brake. Since the long handle lever 29 is fixed to the swing hinge frame 28A, the brake operating member 27 can operate the brake 36 with a small force.

The front side of the handle lever 29 is positioned forward of the handle 14f at the position "i", and the fingers easily reach the handle lever 29 in a state where the handle 14f is held. In this positional relationship, when the basket placed on the basket platform 19 is lifted and taken out, the basket may hit the handle lever 29, but even if the basket hits the handle lever 29, the handle lever can be rotated upward and moved to the position "iii" substantially identical to the handle portion 14f, so that the basket can be smoothly taken out. The handle lever 29 may be positioned rearward of the handle portion 14f even in the position "i" so that the basket does not contact the handle lever 29 when the basket placed on the basket platform 19 is lifted and taken out. In this case, the brake can be activated by operating the side portion of the handle lever 29 while gripping the extension portion 14e of the handle frame 14 to move the handle lever 29 to the position "iii".

Next, the rear wheel support frame 15 will be described with reference to fig. 1A and 1B, fig. 10, fig. 11A, and fig. 11B. Fig. 10 is a front view of the brake device, and fig. 11A and 11B show the brake device of fig. 10, in which fig. 11A is a top view and fig. 11B is a bottom view.

As shown in fig. 1A and 1B, the rear wheel support frame 15 is constituted by a pair of left and

right frames

15A, 15B extending rearward from the base portion of the pillar frame 13 by a predetermined length, spaced apart by a distance slightly wider than the width of the front wheel support frame 12, and bent in a substantially arcuate shape, and the pair of left and

right frames

15A, 15B are connected by a connecting bar frame 15₁And thus maintains the interval between the two frames.

The pair of left and

right frames

15A and 15B are formed by an upper frame portion 15A and a lower frame portion 15B (fig. 1A) having a predetermined length and provided vertically at a predetermined interval, respectively, and fig. 1A shows the upper and

lower frame portions

15A and 15B of one frame 15A. The other frame 15B is also formed of upper and

lower frame portions

15A and 15B similar to the frame 15A. And, the connecting strip frame 15₁Is attached to either one of the upper and

lower frame portions

15A, 15B constituting the

frame

15A or 15B.

Rear wheel mounting members 16 are coupled to end portions of the upper and

lower frames

15a, 15b, and rear wheels are attached to the rear wheelsThe mounting member 16 is fitted with a rear wheel 18 and a brake device 30. As shown in FIG. 1B, the

frames

15A and 15B of the rear wheel support frame 15 are spaced apart by a distance slightly wider than the width of the front wheel support frame 12, and are connected by a connecting bar frame 15 ₁Therefore, the distance between the rear wheel support frames 15 is kept wider than the distance between the front wheel support frames 12, and the

frames

15A and 15B are prevented from being shaken, and can also be used as a stopper when the carts 10 are nested (nesting).

As shown in fig. 1A, the rear wheel attachment member 16 is formed of a member coupled to the end portions of the upper and

lower frame portions

15A, 15b of the frame 15A, and as shown in fig. 11A, the member is formed of a coupling portion 16a and bifurcated

frames

16b, 16c (fig. 11A) extending from the coupling portion and branching into two, and these members are formed of an integral member. Similarly to the frame 15A, the frame 15B also has a coupling portion 16a and bifurcated frames 16B and 16 c.

Hereinafter, in order to facilitate understanding of the respective frames, information on the rear wheel support frame 15 and the rear wheel mounting member 16 will be described in addition. The rear wheel support frame 15 is constituted by a pair of

frames

15A, 15B (fig. 1B) facing each other, and each of the rear wheel support frames 15A, 15B is formed by upper and

lower frame portions

15A, 15B (fig. 1A, 10) spaced apart from each other vertically by a predetermined gap, and a rear wheel mounting member 16 is coupled to the upper and

lower frame portions

15A, 15B. The rear wheel mounting member 16 is formed of a coupling portion 16a coupled to the end portions of the upper and

lower frame portions

15a, 15b, and a pair of

bifurcated frames

16b, 16c (fig. 11A) extending rearward from the coupling portion so as to be branched into two frames having a predetermined length and facing each other with a predetermined gap (slightly wider than the width of the rear wheel 18).

The bifurcate frame 16c further includes upper and lower branch frame portions 16 branched and extended forward from the coupling portion 16a at a predetermined interval₁、16₂And a curved frame part 16 connecting both end parts of the upper and lower branch frame parts₃. Upper and lower branch frame parts 16₁、16₂And a curved frame part 16₃Is formed of an integral member and is in a horizontal U-shape in side view. Upper and lower branch frame portions 16₁、16₂Each of the upper frame portion 15A and the lower frame portion 15B provided in the pair of

frames

15A and 15B is attached. The rear wheel mounting member 16 described above, i.e., the lower branch frame portion 16₁、16₂With brake means 30 fitted therebetween, and in addition to the curved frame part 16₃A rear wheel 18 (fig. 10) is pivotally supported.

The rear wheel 18 is constituted by a pair of right and left wheels having a predetermined diameter and width, each constituted by a circular frame and a rubber tire fitted to the outer periphery of the frame, between opposing

bifurcate frames

16b, 16c (fig. 11A) and at the curved frame portion 16₁The axle 18 of the compartment (fig. 10)₁And (4) supporting the shaft.

Next, the brake device 30 will be described with reference to fig. 10 to 13B. Fig. 12A, 12B, and 12C show an operating arm of the parking brake, in which fig. 12A is a front view, fig. 12B is a plan view, and fig. 12C is a right side view of fig. 12A. Fig. 13A and 13B show the base plate, in which fig. 13A is a front view and fig. 13B is a right side view of fig. 13A.

As shown in fig. 10, the brake device 30 is composed of a parking brake 32 and a brake 36, and is assembled between the two

fork frames

16b, 16c and each of the upper branch frame portions 16₁And the lower branch frame part 16₂The gap therebetween.

As shown in fig. 10, the parking brake 32 includes a parking brake operating arm 33, a brake shoe 34 fixed to one end of the operating arm, and a coil spring 35. As shown in fig. 12A, 12B, and 12C, the parking operation arm 33 includes a plate-shaped arm portion 33a bent in a substantially く shape and having a predetermined thickness, the brake shoe 34 is fixed to the upper end of the arm portion 33a, and a spindle through-hole 33a is formed in the vicinity of the brake shoe 34₁A fixing hole 33a for attaching the wire W1 (fig. 4A, 4B and 4C) of the brake cable C1 is formed at the lower end thereof₂. The brake cable C1 includes an outer tube having a hollow hole therein and a wire W1 inserted into the hollow hole so as to be movable. In addition, the brake shoe 34 is preferably replaceable.

As shown in fig. 10, the brake 36 includes a brake actuator arm 37, a brake shoe 38 fixed to a lower end of the actuator arm, and a coil spring 39. The brake actuator arm 37 is also constituted by a plate-like arm bent substantially in the shape of "く" and having a predetermined thickness, in which a brake shoe 38 is fixed to a lower end, a spindle through-hole is formed in the vicinity of the brake shoe 38, and a fixing hole for attaching a wire W2 (fig. 4A, 4B, and 4C) of a brake cable C2 is formed at a lower end, similarly to the parking actuator arm 33.

When these brake components are attached to the rear wheel attachment member 16, first, between the two-

fork frames

16b, 16c and at each upper branch frame portion 16, a frame portion 16 is branched₁With the lower branch frame portion 16₂The base plate 31 is fixed at a position slightly spaced apart from the rear wheel 18. As shown in fig. 13A and 13B, the base plate 31 is formed of a plate-like body 31a having a substantially rectangular shape in side view and a predetermined thickness, and holes for inserting brake cables C2 for a brake are formed at upper and lower ends of the plate-like body.

Then, the support shaft 33 is used₁Pivotally supporting a parking brake operating arm 33 to the opposed upper branch frame portion 16₁In addition, by means of a support shaft 37₁Pivotally supporting a brake actuating arm 37 to the opposed lower branch frame part 16₂In (fig. 10).

Next, a brake cable C1 (fig. 10) for the parking brake is fixed to the base plate 31, and the inner wire W1 is inserted into the coil spring 35, so that the end portion is fixed to the fixing hole 33a of the operating arm 33₂. The brake wire C1 is fixed to the base plate 31 by a cable adjuster Caj.

Similarly, the brake cable C2 (fig. 10) is also attached to the brake 36 via the base plate 31 by the same method as the parking brake cable C1. The other ends of the wires W1 and W2 of the brake cables C1 and C2 are fixed to the operating

arms

33 and 37, respectively.

Thereafter, the parking brake operating member 22 provided to the handle frame 14 and the parking brake 32 are coupled by the brake cable C1, and one end of the wire W1 is fixed to the parking brake operating member 22 and the other end is fixed to the parking brake 32. Similarly, the brake operating member 27 and the brake 36 are coupled by the brake cable C2, and one end of the wire W2 is fixed to the parking brake operating member 22 and the other end is fixed to the parking brake 32. Then, the lengths of the wires W1, W2 of the two brake cables C1, C2 are adjusted to adjust the brakes. In fig. 1A and 1B, 4A, 4B, and 4C, both the brake cables C1 and C2 are exposed, but when the frame is made of a hollow tube, it is preferable that both the brake cables C1 and C2 be passed through the tube so as not to be exposed. This prevents the hook from being caught, and also makes the appearance more beautiful.

First, the parking brake 32 is adjusted by the length of the brake wire W1 and the coil spring 35 such that the arm support bases 21 of the parking brake operating member 22 are in a state in which one end is pushed upward by the lateral V-shaped spring 26, and therefore the brake shoes 34 of the operating arms 33 are strongly pressed against the rear wheel 18 in this state, and the rotation of the rear wheel 18 is stopped. By this adjustment, the cart is stopped at a predetermined place, i.e., the parking state is established.

In addition, the adjustment of the brake 36 is performed such that the handle lever 29 of the brake operating member 27 is tilted downward to the position "i" (fig. 7A and 7B), that is, the brake shoe 38 of the operating arm 37 is separated from the rear wheel 18. By means of this adjustment, the trolley can be braked or temporarily stopped while travelling.

Since the cart 10 according to embodiment 1 includes the parking brake 32 and the brake 36 as the brake device, when a user such as a helper leaves the cart unintentionally or unintentionally, the parking brake 32 automatically operates to stop or park the cart 10, thereby preventing contact or collision with an object or the like. Further, during traveling, the brake 36 can be operated by the handle brake lever 29 to perform speed control or temporary stop, and can be used safely and securely. In use, the

respective brakes

29 and 36 are operated in a normal use mode or posture of a user such as a helper, thereby satisfying the above-described two desiderata of the customer user.

In addition, in the cart 10 according to embodiment 1, since the parking brake 32 and the brake 36 are provided as a unit, the brake device 30 is compact in structure, the assembly to the rear wheel attachment member 16 is simplified, and the attachment of the rear wheel attachment member 16 to the rear wheel support frame 15 is also facilitated. Further, since the rear wheel 18 and the brake device 30 are mounted between the two-

fork frames

16b, 16c of the rear wheel mounting member 16, the user's clothing can be prevented from being entangled in the hem or the like by the two-

fork frames

16b, 16c without separately providing an "entanglement preventing cover. When the parking brake 32 is not operated, a lock mechanism (not shown) is provided separately to perform locking. The cart 10 according to embodiment 1 is provided with the parking brake 32 and the brake 36, but the brake 36 may be omitted.

(embodiment mode 2)

The cart according to embodiment 2 of the present invention will be described with reference to fig. 14A and 14B, and fig. 15A and 15B. Fig. 14A and 14B show a cart according to embodiment 2 of the present invention, in which fig. 14A is a front view and fig. 14B is a plan view. Fig. 15A is an enlarged front view of the cart according to embodiment 2, and fig. 15B is an enlarged right side view. In these figures, the brake device is omitted, but the brake device is not essential to the cart of embodiment 2, and the cart may not include the brake device. In the following description, the same reference numerals are applied to parts common to the cart of embodiment 1, and the different configurations will be described in detail.

The cart 10A according to embodiment 2 of the present invention has a configuration in which a connecting bar 15 is provided between the

frames

15A and 15B of the rear wheel support frame 15 and between one of the upper and

lower frame portions

15A and 15A (fig. 1A and 1B)₂(FIG. 15B), in the connecting bar 15₂Is fixed with a folding chair 40. The folding chair 40 includes a base 45, a chair leg frame 41 for supporting the base 45, and a hinge arm 44 for coupling the chair leg frame 41 to the base 45 (fig. 14A and 15A).

The detailed structure and features of the foldable chair 40 will be described below with reference to fig. 16A to 18B.

First, the structure of the chair leg frame and the pedestal will be described with reference to fig. 16A, 16B, 16C, 17A, 17B, and 17C. Fig. 16A and 16B show a chair leg frame of a cart according to embodiment 2, in which fig. 16A is a front view, fig. 16B is a plan view, and fig. 16C is a right side view. Fig. 17A, 17B, and 17C similarly illustrate the table base of the cart, in which fig. 17A is a front view, fig. 17B is a bottom view, and fig. 17C is a right side view.

As shown in fig. 16A, 16B, and 16C, the chair leg frame 41 has a bottom portion 41a having a predetermined length, and right and left standing portions 41B bent at both ends of the bottom portion and standing up by a predetermined length₁、41c₁. The left and right standing parts 41b₁、41c₁The bent portions a, b also have standing portions 41b from left and right₁、41c₁An extension portion 41b extending substantially at right angle₂、41c₂Integrally formed from a hollow tube or the like. The bottom portion 41a is shorter than the distance between the rear wheel support frames 15A and 15B (fig. 1B), and is a portion that contacts the floor surface or the ground.

The chair leg frame 41 further has base support frames 42A, 42B fixed to the bent portions a, B for supporting the base 44 thereon, and left and right extending portions 41B ₂An articulated arm mounting part Y1 is provided midway in 41c2, and a left and right extension part 41b₂、41c₂Has a frame mounting part Y2 at the front end.

As shown in fig. 17A, 17B, and 17C, the upper and lower surfaces 45a and 45B of the base 45 are substantially square and are formed of a plate-like body having a predetermined thickness, and a pair of attachment fittings 46a and 46B are fixed to the lower surface 45B. Hinge arms 44 are mounted to each mounting fitting 46a, 46 b.

Next, the attachment of the folding chair to the cart and the folding of the chair will be described with reference to fig. 14A and 14B, and fig. 18A and 18B. Fig. 18A and 18B are explanatory views for explaining a folded state of a folding chair attached to the cart according to embodiment 2, in which fig. 18A is a front view, and fig. 18B is a right side view, in which reference numerals I to V in fig. 18A denote positions during folding movement of the chair, reference numeral I denotes a use state of the chair after the chair is taken out by a solid line, reference numeral V denotes a chair stowing state by a solid line, and dotted line diagrams of reference numerals II to IV between them denote a movement process.

The chair leg frame 41 has a pedestal support frame 42 fixed to bent portions a and b and extending portions 41b provided on the left and right sides₂、41c₂The hinge arms 44 are fixed to the mounting portions Y1 of the base 45 and the mounting

fittings

46a and 46b, respectively, to assemble the foldable chair, and the assembled foldable chair member is mounted to the cart 10A. The chair leg frame 41 is attached by extending the left and right extension portions 41b ₂、41c₂Pivotally supported on the connecting strip 15₂To proceed with. Since the assembled folding chair members are unitized, the attachment and detachment to and from the cart 10A can be easily performed. Between the base 45 and the forearm support base 21, the forearm support base 21 preferably functions as a backrest. That is, when the base 45 is attached to the chair leg frame 41, an imaginary line (not shown) is hung from the rear end edge of the forearm support base 21, and the hanging line is fixed so as to be positioned inside the center of the base 45. Thus, when the user sits on the pedestal rearward, the back or the vicinity of the neck comes into contact with the forearm support base, and the forearm support base functions as a backrest.

The folding chair 40 attached to the cart 10A is stowed (folded) and pulled out as follows. Fig. 18A shows a state in which the cart 10A according to embodiment 2 is pulled out of the folded chair, and from this state, the chair leg frame 41 is lifted up toward the column frame 13 side of the cart 10A, and the pedestal 45 is moved from the position "I" to the position "V" to be stowed.

Position "V" is a fully stowed position in which the stand 45 is closest to the column frame 13 and further In addition, the folding chair 40 is stored in a state where the chair foot frame 41 is also moved to a position closest to the pillar frame 13 and the handle frame 14. This stowage can be easily performed by a lifting movement of the chair foot frame 41. The chair leg frame 41 is pulled out toward the rear wheel 18. The retraction and the extension can be carried out substantially simply by one hand. A lock mechanism (not shown) is provided to immobilize the chair in the folded state. The lock mechanism uses a known mechanism. For example, a plastic spring clip may be fixed to the connecting bar 131 at two positions so that the extension 41b is disposed₂、41c₂Can be assembled and disassembled.

Thus, according to the cart 10A of embodiment 2, since the foldable chair is provided between the column frame 13 and the rear wheel support frame 15, the foldable chair can be easily set, and the user can sit down to have a rest when tired. Further, as in the case of the cart 10 of embodiment 1, if the brake device 30 is attached, the cart is brought into a parked state when the foldable chair member is attached to and detached from the cart and when the foldable chair member is stored (folded) and pulled out, and therefore, the above-described operation can be performed easily and safely, and the user can also sit down safely and comfortably even when the chair is used.

Claims

1. A cart is provided with:

a handle frame extending from the strut frame,

it is characterized in that the preparation method is characterized in that,

When the weight of the vehicle is removed from the weight receiving pressure, the parking brake is operated to stop or park the vehicle, and during traveling, the handle brake lever is gripped to operate the brake to brake the vehicle.

2. A trolley according to claim 1,

the rear wheel mounting member includes a bifurcated frame that is bifurcated into two parts with a predetermined gap therebetween, and a parking brake and a brake that constitute a brake device are provided in the gap between the bifurcated frame.

3. Trolley according to claim 1 or 2, characterised in that,

a space of a predetermined size is formed between the front end portion of the front wheel support frame and the base portion of the column frame, and the space serves as a platform on which an article is placed.

4. Trolley according to any of the claims 1-3,

a foldable chair is provided between the column frame and the rear wheel support frame.

5. A trolley according to any one of the claims 1-4,

a basket platform for placing a shopping basket is mounted on one of the handle frame and the post frame by a fixing mechanism which can be freely detached.

6. A trolley according to any one of the claims 1-5,

the front wheel support frame and the pillar frame are formed of an integral member, the handle frame is adjustably coupled to the pillar frame, and the front wheel support frame, the pillar frame, the handle frame, and the rear wheel support frame are each formed of a hollow pipe.