JP2018058556A - Handcart and bag for handcart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag for containing things which is detachable and can be attached and detached by one action.SOLUTION: A bag comprises: a pair of lock pins 19f provided at both width-directional end parts of a bag body 19a to move forward and backward; a pair of energizing parts 51 provided on an inner side face of the bag body 19a to energize the respective lock pins 19f in the forward direction; a pair of coupling members 55 provided inside the bag body 19a to couple a rotary shaft 59 penetrating the bag body 19a to end parts of the lock pins 19f on sides of the energizing parts 51, respectively; a rotary release lever 19g provided on an outer side face of the bag body 19a and coupling with the rotary shaft 59; and an engagement projection provided on an outer side face of the bag body 19a. The engagement projection engages an engagement groove provided on a main body and the pair of lock pins 19f engage to bag fixation holes provided in the main board, so that the bag is fixed to the main body.SELECTED DRAWING: Figure 3F

Description

  The present invention relates to a handcart and a handcart bag having a front wheel and a rear wheel at one end of a frame and a handle at the other end of the frame.

  Conventionally, wheelbarrows for elderly people (also called “silver cars”) are known. This wheelbarrow is mainly used when an elderly person who has no problem with walking but has weak legs and is apt to get tired or injured in the knees and waist and goes out for shopping. A feature of such a wheelbarrow is that a user (elderly person) has a seat surface for use as a chair and a storage unit for carrying luggage. Further, casters are employed for the front wheels to freely change the traveling direction, and the rear wheels are configured to be braked to ensure safety. Further, when used as a chair, a lock mechanism for stopping the rotation of the wheel is also provided.

  For example, the handcart described in Patent Document 1 has not only a basic function as a handcart to assist walking, but also a function as a chair, a function of storing luggage, and a function of folding and compacting. This wheelbarrow is provided with a bag-like bag for storing luggage.

Registered Utility Model No. 3078122

  However, in the handcart described in Patent Document 1, as described in paragraph [0014], when the bag is mounted on the handcart, the back side of the bag is fixed to the support shaft. Specifically, it is not described how to fix the bag, and it is not assumed that the bag can be attached and detached with one touch.

  The present invention has been made in view of such circumstances, and provides a handcart and a handcart bag in which a bag for storing luggage is detachable and can be attached and detached with one touch. Objective.

  (1) In order to achieve the above object, the present invention takes the following measures. That is, the handcart of the present invention is a handcart having a front wheel and a rear wheel at one end of the frame and a handle at the other end of the frame, and is sandwiched between the handle and the front wheel by the frame. A main board that functions as a bag mounting surface, a pair of side portions provided at both ends of the main board in the vehicle width direction, and a bag fixing hole provided at an end portion on the handle side of each side portion, A pair of engagement grooves provided at an end of the main board on the front wheel side, a bag body mounted on a bag mounting surface of the main board, and a pair of the bag body provided so as to be able to advance and retract at both ends in the width direction. A lock pin, a pair of urging portions provided on the inner surface of the bag main body for urging the lock pins in the advancing direction, and provided inside the bag main body and penetrating the bag main body. A pair of connecting members that respectively connect the rotating shaft and the end portion on the biasing portion side of each lock pin; a rotary release lever provided on the outer surface of the bag body and connected to the rotating shaft; An engagement protrusion that is provided on an outer surface of the bag body and engages with the engagement groove, the engagement protrusion and the engagement groove are engaged, and the pair of lock pins are fixed to the bag The bag is fixed to the main board by engaging with a hole.

  Thus, the engagement protrusion provided on the bag body and the engagement groove provided on the main board of the handcart engage with each other, and the pair of lock pins provided on the bag body includes the main wheel of the handcart. By engaging with the bag fixing hole provided in the board, the bag is fixed to the main board, so that the user can easily mount and fix the bag on the wheelbarrow.

  (2) Further, in the handcart of the present invention, when the rotary release lever rotates, the rotation shaft rotates, and the connection members pull the lock pins inward of the bag body. The lock pins are retracted from the bag fixing holes.

  As described above, when the rotary release lever rotates, the rotation shaft rotates, and each connecting member pulls each lock pin toward the inside of the bag body, so that each lock pin retracts from the bag fixing hole. By pulling up the bag in this state, the bag can be easily detached from the wheelbarrow.

  (3) Further, the handcart bag of the present invention has a front wheel and a rear wheel at one end of the frame, a handle at the other end of the frame, and is sandwiched by the frame between the handle and the front wheel. A wheelbarrow bag applied to a wheelbarrow having a main board that functions as a bag mounting surface, and is provided so as to be able to advance and retreat at a bag body for storing luggage and at both ends in the width direction of the bag body. A pair of lock pins, a pair of urging portions provided on the inner surface of the bag body and urging each lock pin in the advancing direction, and a rotating shaft provided inside the bag body and penetrating the bag body And a pair of connecting members that respectively connect the end portions of the lock pins on the urging portion side, a rotary release lever that is provided on an outer surface of the bag body and is connected to the rotating shaft, and the bag. An engaging protrusion provided on an outer surface of the main body, the engaging protrusion and the engaging groove provided on the main board are engaged, and the pair of lock pins are provided on the main board. The main board is fixed by engaging with the bag fixing hole.

  As described above, since the lock mechanism including the lock pin and the engagement protrusion are provided on the bag, the bag can be easily attached to and detached from the handcart having the main board functioning as the bag mounting surface.

  According to the present invention, the user can easily mount and fix the bag on the handcart.

It is a perspective view at the time of seeing diagonally from the height of about half with respect to the height of a wheelbarrow. It is a perspective view at the time of seeing diagonally from the height of about half with respect to the height of a wheelbarrow. It is a perspective view at the time of seeing diagonally from the wheel side of the handcart. It is a perspective view at the time of seeing diagonally from the wheel side of the handcart. It is the perspective view seen from the baggage taking-out side of the bag. It is the perspective view seen from the wheel side of a bag. It is the perspective view seen from the abdominal surface side of the bag. It is the perspective view seen from the abdominal surface side in the state which stood up the bag. It is a perspective view which is a part of a bag and shows a state in which a baggage outlet is opened from the handle side. It is a perspective view which is a part of a bag and shows a state in which a luggage outlet is opened from the back side of a handle. It is a figure which shows the state fixed with the attitude | position which faces a bag mounting surface in the direction containing perpendicular upper direction. The state which removed the bag in the state which the bag mounting surface faces in the direction containing perpendicular upper direction is shown. The state which removed the bag from the wheelbarrow is shown. The state which extended the expansion-contraction rod in the bag is shown.

  The present inventors paid attention to the fact that a specific configuration for easily attaching and detaching the bag to and from the wheelbarrow has not been proposed, and is provided with a lock pin provided on the bag so as to be able to advance and retreat, and an engagement protrusion. Thus, it was found that the bag can be attached to and detached from the wheelbarrow with a single touch, and the present invention has been achieved.

  That is, the handcart of the present invention is a handcart having a front wheel and a rear wheel at one end of the frame and a handle at the other end of the frame, and is sandwiched between the handle and the front wheel by the frame. A main board that functions as a bag mounting surface, a pair of side portions provided at both ends of the main board in the vehicle width direction, and a bag fixing hole provided at an end portion on the handle side of each side portion, A pair of engagement grooves provided at an end of the main board on the front wheel side, a bag body mounted on a bag mounting surface of the main board, and a pair of the bag body provided so as to be able to advance and retract at both ends in the width direction. A lock pin, a pair of urging portions provided on the inner surface of the bag main body for urging the lock pins in the advancing direction, and provided inside the bag main body and penetrating the bag main body. A pair of connecting members that respectively connect the rotating shaft and the end portion on the biasing portion side of each lock pin; a rotary release lever provided on the outer surface of the bag body and connected to the rotating shaft; An engagement protrusion that is provided on an outer surface of the bag body and engages with the engagement groove, the engagement protrusion and the engagement groove are engaged, and the pair of lock pins are fixed to the bag The bag is fixed to the main board by engaging with a hole.

  Thereby, the present inventors made it possible to easily mount and fix the bag on the wheelbarrow. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1A, 1B, 2A, and 2B are perspective views of a handcart according to the present embodiment. 1A and 1B are perspective views when viewed obliquely from about half the height of the handcart 1, and FIGS. 2A and 2B are obliquely viewed from the wheel side of the handcart 1. It is a perspective view at the time of seeing. In the handcart 1, a basic frame (frame) is configured by the front frame 3, the rear frame 5, and the upper frame 7. The front frame 3 has a front subframe 11 at an end portion in the forward direction, and has a substantially U-shaped shape. The rear frame 5 has a rear sub-frame 13 at an end in the reverse direction, and has a ladder shape. Further, the upper frame 7 has an upper subframe 15 on the back side of the backrest portion 31 on which the weight of the user is applied, and has a ladder shape.

  Further, the front frame 3, the rear frame 5 and the upper frame 7 are rotatably connected to each other by a connection portion 9 at one end. For this reason, the front frame 3, the rear frame 5, and the upper frame 7 can rotate around the connection portion 9.

  The main board 17 is formed in a plate shape and has a pair of side surface portions 18a at both ends in the vehicle width direction. The main board 17 is sandwiched by the front frame 3 so as to be rotatable about a rotation shaft 18b provided on the side surface portion 18a. The main board 17 has two surfaces, one functioning as a bag mounting surface 17a and the other functioning as a seating surface 17b. The main board 17 rotates to switch between a first posture in which the bag mounting surface 17a faces in a direction including the vertically upward direction or a second posture in which the seat surface 17b faces in a direction including the vertically upward direction. It is fixed to the front frame 3 in one of the postures. A bag 19 is detachably mounted on the bag mounting surface 17a. 1A and 2A show a state where the bag 19 is mounted on the bag mounting surface 17a, and FIGS. 1B and 2B show a state where the bag 19 is detached from the bag mounting surface 17a.

  The link mechanism 21 connects the three members at the connection point 21 a and regulates the distance between the front frame 3 and the rear frame 5, while interlocking with the upper frame 7 to bring the front frame 3 and the rear frame 5 close to each other. It has a function to make it.

  The pair of front wheels 23 is provided at the opposite end with respect to the connection portion of the front frame 3 by a caster method, and the pair of rear wheels 25 is the end portion opposite to the connection portion of the rear frame 5. Is provided. The upper frame 7 is connected to the front frame 3 and the rear frame 5 at the connection portion 9 and is fixed so as to be substantially flush with the front frame 3 when the handcart 1 is used. With this configuration, the user can easily change the traveling direction of the handcart 1 by operating the handle 27 provided at the end opposite to the connection portion 9 of the upper frame 7. . The brake lever 29 is connected to a brake that stops the rotation of the rear wheel 25, so as to reduce the speed of the handcart 1 or to lock the rear wheel 25 and maintain the stop state of the handcart 1. Used.

  The backrest part 31 is fixed to the 2nd attitude | position which the seating surface 17b faces in the direction including perpendicular upper direction, and supports a user's back when a user uses the handcart 1 as a chair. When the user uses the handcart 1 as a chair, the main body side holding portion 33 functions as a support when standing up from a sitting state, or when the handcart 1 is transported in a folded state as will be described later. Or function as a handle. The lock release wire 35 is used to release the lock mechanism that locks each posture when the handcart 1 is folded from the normal state or when the handcart 1 is expanded from the folded state to the normal state.

  3A, 3B, 3C, 3D, and 3E are perspective views of the bag according to the present embodiment. 3A is a perspective view of the bag 19 as viewed from the luggage take-out port 19b side, and FIG. 3B is a perspective view of the bag 19 as viewed from the wheel 19d side. 3C is a perspective view of the bag 19 viewed from the abdominal surface 19i side, and FIG. 3D is a perspective view of the bag 19 viewed from the abdominal surface 19i side with the bag 19 raised. FIG. 3E is a perspective view seen from the abdominal surface 19i side in a state where the bag 19 is erected and the grip portion 19j is extended.

  As shown in FIG. 3A, in the bag 19, the bag main body 19 a has a space for storing luggage, and has a luggage take-out port 19 b that can be opened and closed with a fastener. The mechanism for opening and closing the baggage take-out port 19b is not limited to the fastener type, and may be constituted by Velcro (registered trademark), a button, a magnet, or the like. A handle 19c is provided at one end of the bag body 19a, and is used when the user carries the bag 19. In FIG. 3A, the handle 19c is provided at the end of the bag body 19a near the baggage outlet 19b. Moreover, as shown to FIG. 3B, a pair of wheel 19d is provided in the edge part on the opposite side to the handle 19c of the bag main body 19a. Each wheel 19d is grounded, so that the bag 19 can be used as a carry bag.

  As shown in FIGS. 3A and 3B, a stand 19e is provided between the pair of wheels 19d. The bag 19 can be made independent by grounding the stand 19e when the handle 19c of the bag 19 is directed vertically upward and the wheels 19d are grounded. A pair of lock pins 19f is provided at the end of the bag body 19a opposite to the wheel 19d. The lock pin 19f is configured such that the bag body 19a can advance and retreat from a surface (side surface of the bag body 19a) facing the side surface portion 18a of the main board 17, and is always urged in a protruding direction. The lock pin 19f is fitted into a bag fixing hole 17f of the main board 17 described later, and fixes the bag 19 to the handcart 1. In addition, a rotary release lever 19g is provided in the vicinity of the handle 19c and at an intermediate position between the pair of lock pins 19f. The rotary release lever 19g is connected to the lock pin 19f, and is configured to retract the lock pin 19f inside the bag body 19a by rotating. A plunger can be used as a mechanism for urging the lock pin 19f, but the present invention is not limited to this.

  Moreover, as shown in FIG. 3B and FIG. 3C, the engagement protrusion 19h is provided in the edge part by the side of the wheel 19d of the bag main body 19a. The engagement protrusion 19h is fitted to a notch portion provided on the main board 17 described later, so that when the bag 19 is mounted on the bag mounting surface 17a, it functions as positioning of the bag 19 and the bag 19 is fixed. It fulfills the function of In the present embodiment, the engagement protrusion 19h is integrated with the stand 19e and is configured in a plate shape having a certain area, but the present invention is not limited to this.

  Further, as shown in FIGS. 3C and 3D, the bag body 19a has a substantially flat abdominal surface 19i on the opposite side of the baggage take-out port 19b. Since the abdominal surface 19i is a substantially flat surface, the abdominal surface 19i and the bag mounting surface 17a of the handcart 1 can be satisfactorily aligned. Further, a grip portion 19j is provided on the side of the abdominal surface 19i of the handle 19c. An operation button 19k is provided at the center of the grip portion 19j. When the user presses the operation button 19k, the grip portion 19j can be expanded and contracted.

  FIG. 3E is a perspective view showing a part of the bag and a state in which the baggage outlet is opened from the handle side. FIG. 3F is a perspective view of a part of the bag and showing a state where the baggage outlet is opened from the back side of the handle. As shown in FIGS. 3E and 3F, the bag body 19a includes a pair of lock pins 19f at both ends in the width direction of the bag body 19a. Each lock pin 19f is provided to be able to advance and retract from the bag body 19a. A pair of urging portions 51 that urge the lock pins 19f in the advancing direction are provided on the inner side surface of the bag main body 19a, and are fixed to the bag main body 19a by a fixing member 53.

  A rotation shaft 59 that penetrates the bag body 19a is provided inside the bag body 19a. A circular connecting member 57 is provided at the lower end of the rotating shaft 59, that is, the inner end of the bag body 19a of the rotating shaft 59, and the pair of connecting members 55 are connected to the connecting member 57 and the lock pins 19f. The urging | biasing part 51 side edge part is comprised, respectively. Although the connection member 55 can be comprised with a wire, for example, this invention is not necessarily limited to this. The rotation shaft 59 is fixed to the bag body 19a by a fixing member 61. The rotating shaft 59 may be biased so as to always return to the neutral position even when it receives a rotating operation. Further, a rotary release lever 19g connected to the upper end portion of the rotary shaft 59, that is, the outer end portion of the bag main body 19a of the rotary shaft 59 is provided on the outer surface of the bag main body 19a.

  Next, the shape of the bag body 19a will be described. As shown in FIG. 3A, when the direction from the handle 19c to the stand 19e is the depth direction and the direction from the abdominal surface 19i to the opposite surface having the baggage take-out port 19b of the bag body 19a is the thickness direction, The main body 19a gradually increases in thickness as it advances in the depth direction. The bag body 19a has the maximum thickness at about 2/5 in the depth direction. Thereafter, the thickness gradually decreases, and the thickness is minimized in the vicinity of the wheel 19d.

  The bag body 19a has such a shape when the main board 17 is rotated in a state where the bag 19 is mounted on the bag mounting surface 17a of the main board 17 and the baggage outlet 19b of the bag 19 is rotated. This is so that the rotation of the main board 17 is not hindered by the surface having the contact with the front sub-frame 11. With this configuration, the main board 17 can be rotated while the bag 19 is mounted on the bag mounting surface 17a, and the seating surface 17b can be directed vertically upward without reducing the capacity of the bag 19 more than necessary. The car 1 can be used as a chair.

  FIG. 4 is a diagram showing a concept of fixing the main board 17 to the front frame 3, and a part thereof is shown as a perspective view for convenience of explanation. FIG. 4 shows a state in which the bag mounting surface 17a is fixed in a posture that faces in a direction including vertically upward. The pair of front frames 3 includes a lock mechanism 17c on the main board 17 side. In FIG. 4, only the front frame 3 positioned on the back side with respect to the paper surface is shown for convenience of drawing. The lock mechanism 17c biases the lock main body 40 slidable in the axial direction of the front frame 3, lock notches 41 provided at both ends of the lock main body 40 in the slide direction, and the lock main body 40 to the neutral position. The urging unit 42 is configured.

  On the other hand, as shown in FIG. 4, the main board 17 includes a pair of stoppers 17d and a pair of stoppers 17e. The pair of stoppers 17d includes a pair of locking projections 43a. When the main board 17 is in the state shown in FIG. 4, the pair of locking protrusions 43 a engages with the locking notches 41 on the front wheel 23 side of the lock body 40, and the pair of stoppers 17 d are perpendicular to the front frame 3. The main board 17 prevents the main board 17 from rotating in the direction in which the engagement groove 17g rises and the bag fixing hole 17f descends around the rotation shaft 18b by contacting the surface facing the direction including the lower side. .

  In FIG. 4, a pair of bag fixing holes 17f with which the lock pins 19f of the bag 19 are engaged are provided at the end portions of the side surface portions 18a in the direction from the locking projections 43a to the rotating shaft 18b. Further, an engagement groove 17g that engages with the engagement protrusion 19h of the bag 19 is provided at the end of the main board 17 in the direction from the rotation shaft 18b to the locking protrusion 43a. With this configuration, the bag 19 can be mounted on the bag mounting surface 17a of the main board 17 with one touch.

  Since the main board 17 and the bag 19 adopt the configuration described above, the engagement protrusion 19h and the engagement groove 17g provided on the main board 17 are engaged, and a pair of lock pins 19f are provided on the main board 17. The main board 17 is fixed by engaging with the bag fixing hole 17f. On the other hand, when the user rotates the rotary release lever 19g, the rotation shaft 59 rotates, and each connecting member 55 pulls each lock pin 19f toward the inside of the bag body 19a, whereby each lock pin 19f. However, it retracts from the bag fixing hole 17f. As a result, the bag 19 can be detached from the main board 17.

  Next, the usage aspect of the handcart 1 comprised as mentioned above is demonstrated. FIG. 5A shows a state in which the bag 19 is removed in a state where the bag mounting surface 17a faces in a direction including vertically upward. In this state, the user can walk while pushing the handcart 1. FIG. 5B shows a state where the bag 19 is detached from the handcart 1. Since the bag 19 has the wheels 19d, it can be used as a carry bag. That is, the user does not need to hold the bag 19 removed from the handcart 1 by hand. FIG. 5C shows the bag 19 with the bag telescopic rod 19m extended. As described above, since the grip portion 19j can be expanded and contracted by the bag telescopic rod 19m, the bag 19 can be used as a carry bag. Further, when a baggage is obtained by shopping or the like, it can be stored in the bag 19.

  As described above, according to the handcart according to the present embodiment, the user can easily mount and fix the bag on the handcart.

DESCRIPTION OF SYMBOLS 1 Wheelbarrow 3 Front frame 5 Rear frame 7 Upper frame 9 Connection part 11 Front sub frame 13 Rear sub frame 15 Upper sub frame 17 Main board 17a Bag mounting surface 17b Seat surface 17c Lock mechanism 17d Stopper 17e Stopper 17f Bag fixing hole 17g Joint groove 18a Side surface portion 18b Rotating shaft 19 Bag 19a Bag body 19b Luggage take-out port 19c Handle 19d Wheel 19e Stand 19f Lock pin 19g Rotary release lever 19h Engagement protrusion 19i Abdominal surface 19j Gripping part 19k Operation button 19m Telescopic rod 21 for bag Link mechanism 21a Connection point 23 Front wheel 25 Rear wheel 27 Handle 29 Brake lever 31 Backrest 33 Body side grip 35 Lock release wire 40 Lock body 41 Lock notch 42 Attached Energizing portion 43a Locking protrusion 43b Locking protrusion 51 Energizing portion 53 Fixing member 55 Connecting member 57 Connecting member 59 Rotating shaft 61 Fixing member

Claims (3)

A wheelbarrow having a front wheel and a rear wheel at one end of the frame, and a handle at the other end of the frame,
A main board that is sandwiched between the handle and the front wheel and functions as a bag mounting surface;
A pair of side portions provided at both ends in the vehicle width direction of the main board;
A bag fixing hole provided at an end of the side surface on the handle side;
An engagement groove provided at an end of the main board on the front wheel side;
A bag body mounted on the bag mounting surface of the main board;
A pair of lock pins provided at both ends in the width direction of the bag body so as to be able to advance and retract;
A pair of urging portions provided on the inner surface of the bag body, for urging each lock pin in the advance direction;
A pair of connecting members that are provided inside the bag main body and connect the rotating shaft penetrating the bag main body and the end portion on the biasing portion side of each lock pin;
A rotary release lever provided on the outer surface of the bag body and connected to the rotary shaft;
An engagement protrusion provided on an outer surface of the bag body and engaged with the engagement groove,
The handcart characterized in that the bag is fixed to the main board by engaging the engagement protrusion and the engagement groove and engaging the pair of lock pins with the bag fixing hole. .   When the rotary release lever rotates, the rotation shaft rotates, and the connecting members pull the lock pins inward of the bag body, whereby the lock pins are removed from the bag fixing holes. The handcart according to claim 1, wherein the handcart is retracted. A handcart having a front wheel and a rear wheel at one end of the frame, a handle at the other end of the frame, and a main board sandwiched between the handle and the front wheel and functioning as a bag mounting surface A wheelbarrow bag applied to
A bag body for storing luggage,
A pair of lock pins provided at both ends in the width direction of the bag body so as to be able to advance and retract;
A pair of urging portions provided on the inner surface of the bag body, for urging each lock pin in the advance direction;
A pair of connecting members that are provided inside the bag main body and connect the rotating shaft penetrating the bag main body and the end portion on the biasing portion side of each lock pin;
A rotary release lever provided on the outer surface of the bag body and connected to the rotary shaft;
An engagement protrusion provided on the outer surface of the bag body,
The engagement protrusion and the engagement groove provided on the main board are engaged, and the pair of lock pins are fixed to the main board by engaging with a bag fixing hole provided on the main board. A wheelbarrow bag characterized by being made.

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