JP2979170B2 - caster - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for moving solid objects such as tools and structures in a use situation in which existing casters are limited in the size of wheels used for the existing casters. Or, when solid objects such as instruments and structures move, the invention of a caster with a sleigh for obstacle climbing over which can move over the obstacle when it is not possible to get over an obstacle with a height on the moving surface, And more stable than existing casters, and can move over obstacles that can be braked without controlling the movement of the wheels by the mechanism of the wheels of the existing casters and the brakes that control the axles holding the wheels for braking. The present invention relates to an invention of a caster with a sled.

[0002]

2. Description of the Related Art Heretofore, when moving a solid object such as an instrument or a structure, there has been a caster or the like as a means for allowing a wheel to face a moving surface. When moving solid objects such as instruments and structures, obstacles on the moving surface are in the way, and when the casters are not available, the large wheels directly installed on the casters or the solid objects with large wheels Overcoming obstacles using. When large wheels were not available due to the surrounding conditions, small wheels could not overcome obstacles. Also, the sled has high friction,
It was used in situations such as in contact with snow with little friction, but in buildings, friction resistance with the floor was too large to use.

As an example of correcting the above-mentioned inconvenience and enabling stable movement in a building having many obstacles such as a sill and a tatami edge, particularly in a walker used by a disabled person at home. In order to overcome the obstacles and to correct the instability of falling due to the rotation of the wheels, the present applicant has disclosed an invention of a walker in which a caster provided with a slide stabilizer on the lower surface of a frame is disclosed in Japanese Unexamined Patent Publication No. 7-
It is already filed as No. 2 36670.

[0004]

[SUMMARY OF THE INVENTION However, the inventors of the Japanese Patent Laid-Open 7-2 thirty-six thousand six hundred seventy JP were related walker overcome obstacles. This walker obstacle
Sled casters for goods Norikoshi is when moving solids such as instruments and structures, obstacles on the moving surface becomes disturbed,
When a normal caster cannot be used, an obstacle is overcome, and in the invention described in the above publication, a sliding stabilizer is attached by using an appropriate fixing means, and when the obstacle is overcome and a walker is used. , Ru der those to correct the instability of falling is handicapped by the rotation of the wheel. But
However, it is not possible to increase or decrease the contact area of the slide stabilizer.
Flaws, thus controlling the acceleration applied to the casters
I couldn't.

[0005]

The caster of the present invention comprises:
The slide stabilizer and wheels are grounded. This caster
Is made of a flexible material.
At the same time, it slopes down or down.
First, it is relatively movable in the front-rear direction with respect to the wheel.
Then, slide the stabilizer against the wheel in the front-rear direction.
The sliding stabilizer and the wheels touched down by moving
In this state, the contact area of the slide stabilizer is changed.

[0006] Further , the slide stabilizing plate is provided with respect to the wheel.
Relative to the up and down direction, and
By moving the platen vertically relative to the wheels
When the slide stabilizer and wheels are in contact with the ground,
In some cases, the contact area of the board is changed.

Further, the inclination angle of the slide stabilizer is changed.
Possible and change the inclination angle of the slide stabilizer
By doing so, with the slide stabilizer and wheels in contact with the ground,
The contact area of the slide stabilizer may be changed.

[0008] Further , the sliding stabilizing plate has a first
A raised part and a second raised part on the rear end side
Each may be formed.

Then, the first sled of the slide stabilizer is
The sled part has a sled of about 1/3 of the total length of the slide stabilizer.
And the second raised portion is the first raised portion.
If the radius of curvature is smaller than the curvature
There is a case.

Further, a hole is formed in the slide stabilizer.
In some cases, the wheel is disposed in this hole.

[0011] The sliding stabilizer, the rear end side servant Always need not have a second sled up portion.

The wheel has a lower surface facing the moving surface from a hole in the slide stabilizer, is rotatably fixed to a support stabilizer, and is held up and down by the support stabilizer.
The contact portion area of the slide stabilizing plate may not be increased or decreased by movement or back and forth movement , and a driving mechanism may be provided. The drive mechanism may be anything such as an engine or motor or magnetic drive or nuclear power. The wheels may be spherical. The car
One or more wheels are provided.

The adjuster is located between the slide stabilizing plate and the support stabilizing leg, and is made of a material capable of vertically moving the slide stabilizing plate, or by applying pressure such as hydraulic pressure and air pressure to the slide stabilizing plate. It is a structure that can move vertically. The adjuster may be formed integrally with the slide stabilizer and the support stabilizer, respectively.

[0014]

[Function] Sliding with the slide stabilizer and wheels in contact with the ground
Since the contact area of the stabilizer is changed,
The friction force can be changed.

[0015] Since a part of the sliding stabilizer is in contact with the floor surface, the sliding stabilizer can be stably moved. In addition, the sliding stabilizing plate has a first rising portion at the front end and a second rising portion at the rear end, so that even if the obstacle is a tall obstacle, the sliding stability is improved. It can be easily overcome by raising the board forward. Moreover, when the vehicle climbs over a tall obstacle, the second raised portion provided on the rear end side of the slide stabilizer and the first raised portion provided on the distal end side cooperate to contact the ground. Become smaller.

Since the sliding stabilizing plate has a first rising portion at the front end and a second rising portion at the rear end, the sliding stabilizing plate is stable even if it is a tall obstacle. By climbing the plate along the angle of the first raised portion, it can be easily overcome.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the slide stabilizer 1 is a slide stabilizer which is fixed to a lower surface of a wheel 2 using a support stabilizer 3 so that a part of the lower surface is detachably fixed so as to be groundable.
Is a first raised portion 1a formed by using a flexible material such as a metal such as plastic or aluminum and having its distal end side raised with a large radius of curvature R of about 1/3 of the entire length.
And, on the rear end side, the curvature of the first raised portion 1a.
The second sled up portion 1b are respectively formed which are formed to a small radius of curvature R 'than the radius R. The slide stabilizer 1 has a width of 8 cm and a length of approximately 20 c in order to measure the movement stability.
m and a thickness of about 5 mm. A hole 1d provided substantially at the center of the lower surface of the slide stabilizing plate 1 is provided with a wheel 2 penetrating through the hole 1d rotatably supported by the support stabilizing leg 3.
Is opened such that the lower side of the wheel can face the moving surface g. The holes 1e-1, 1e-2, 1e-3, and 1e-4 formed on the lower surface of the slide stabilizing plate 1 are supported by the support stabilizing legs 3.
The holes 3c-1, 3c-2, and 3d of the support stabilizer leg 3
It is opened to interpose and mount the adjusting tool 5 (a, b) at a position matching the -1 and the hole 3d-2.

In the wheel 2 shown in FIG. 1, the lower side of the wheel faces the moving surface, and the lower surface near the second raised portion 1b of the sliding stabilizer 1 is in contact with the grounding portion 1c of the sliding stabilizer 1 in front of the ground. It is supported by the support stabilizer leg 3, the axle 2a of the wheel 2, and the axle nut 2b. The wheels 2 may have a caster structure that is supported so as to freely rotate in the horizontal direction in order to change the traveling direction. Further, the wheel 2 need not be directly below the load axis f. Further, a drive device such as an engine or a motor can be attached to the wheels 2.

The supporting stabilizer leg 3 shown in FIG. 1 has a hollow structure capable of accommodating the wheel 2 and has a substantially semi-elliptical side surface, and can support a load of a solid object such as an instrument or a structure such as hard plastic or metal. The sliding stabilizer 1 made of a material
Attachment pieces 3a and 3b are respectively provided at the front and rear ends in the extension direction to attach. The mounting pieces 3a and 3b may be located inside a substantially semi-elliptical side surface of the support stabilizer leg 3. The side surfaces of the support stabilizing legs 3 need not be semi-elliptical. The support stabilizing leg 3 has a tilt angle k of several degrees, for example, about several degrees in a state in which the first rising portion 1a on the distal end side rises from the moving surface g so as to form the ground contact portion 1c of the sliding stabilizing plate 1. The slide stabilizing plate 1 can be attached to the lower surface of the wheel 2 by inclining to about 3 degrees so as to rise forward. Holes 3g formed on both sides of the support stabilizing leg 3 allow the wheel 2 to pass through the axle 2a.
It is opened to be rotatably supported by the axle nut 2b. The holes 3c-1 and 3c-2 formed in the mounting piece 3a of the support stabilizing leg 3 and the holes 3d-1 and 3d-2 formed in the mounting piece 3b are provided on the lower surface of the slide stabilizing plate 1. In the holes 1e-1, 1e-2, 1e-3, and 1e-4, the screws 3e-1, 3e-2, and 3f are set.
-1 and the screw 3f-2 are opened in order to sandwich the adjusting tool 5 (a, b) and attach and fix the slide stabilizer 1. The hole 3c-1 and the hole 3c-2, and the hole 3d-1 and the hole 3d-2 are rectangles whose front and rear portions are long and whose tops are semicircular so that the slide stabilizer 1 can make a forward and backward movement. Formed into a shape. A hole 3h formed in the upper part of the support stabilizing leg 3 is formed for mounting the mounting tool 4 of FIG. In the embodiment, screws 4a, nuts 4b, rubbers 4c-1 and 4c-
2 and washers 4d-1, 4d-2 and 4d-3 are used, but solids such as instruments and structures and supporting stabilizing feet 3 are used.
Any means can be used as long as the means can be fixed. Similarly, the form is cylindrical in the embodiment, but may be any form. Attachment pieces 3a and 3 of support stabilizer leg 3
The projection 3i on b is formed to maintain strength. If the strength is sufficient depending on the material and form used, protrusion 3
i is unnecessary. The hole 3c-1 of the support stabilizer leg 3
And the holes 3c-2, 3d-1 and 3d-2 with the mounting screws 3e-1 and 3e-2 and the mounting screws 3f.
Screw-fix using -1 and 3f-2. The shapes of the hole mounting screws 3e-1 and 3e-2 and the mounting screws 3f-1 and 3f-2 are mounting screws in the embodiment but are means for fixing. 5 (a, b)
Any means can be used as long as it can be fixed to the support stabilizing leg 3.

The fixture 4 shown in FIG. 1 includes a screw 4a and a nut 4b.
And rubber 4c-1, rubber 4c-2 and washer 4d-1
And a washer 4d-2 and a washer 4d-3, which are fixed to a support stabilizing leg installation position in the form of a pipe of solid matter such as the appliance and the structure by a change in pressure of rubber in the lateral direction. You. The attachment 4 may be any means such as a screw or an adhesive as a means for attaching the support stabilizing leg to a solid object such as the instrument and the structure.

The adjusters 5a and 5b shown in FIG. 1 are interposed between the slide stabilizing plate 1 and the support stabilizing legs 3 as shown in FIG.
The sliding stabilizer 1 is an adjusting material that can be moved up and down as appropriate, and in the embodiment, is a rubber material that can be used as a buffer between the sliding stabilizer 1 and the support stabilizer 3. The adjusting tools 5a and 5b made of the rubber material can be pressure devices such as pneumatic pressure and hydraulic pressure. The adjusting tool 5a,
5b may be a vertically movable pressure device incorporating a pressure sensor. The adjusters 5a and 5b may be formed integrally with the slide stabilizer and the support stabilizer, respectively.

The ground portion 1c has a length of at least about 5-8 mm in contact with the moving surface g in order to sufficiently secure the stability with respect to the moving surface g. When the slide stabilizer 1 is moved forward and fixed as shown in FIG. 5-1 shown by a solid line, the length of the rear is shortened, the ground contact area is reduced, and the caster with a sled for riding over an obstacle moves smoothly and quickly. With dotted line
As shown in Fig. 5-2 , when the slide stabilizer 1 is moved backward and fixed, the rear becomes longer and the ground contact area becomes larger. It moves smoothly and slowly by receiving strong resistance.

In FIGS. 1 and 2, a hole 1d is formed in the slide stabilizing plate 1 at substantially the center of the lower surface, and the wheel 2 faces the lower surface of the wheel 2 from the hole so that it can slightly contact the moving surface g. As a result, the friction between the sliding stabilizer 1 and the moving surface g is reduced by rotating the wheel 2 in contact with the moving surface g, and the movement of the caster with a sled for overcoming obstacles is smoothed, and the movement is smooth. Eggplant In this case, as shown in FIG.
Is provided at the rear of the wheel 2. The contact area 1c changes its contact area by the forward and backward movement and vertical movement of the slide stabilizer 1, and the change in the contact area can change the frictional force between the caster with a sled for riding over an obstacle and the moving surface g. . The shape of the hole 1d is generally rectangular in a plane in the drawing, but is not limited to this, and may be, for example, an ellipse, an oval, or the like. Should be fine.

The first embodiment of the present invention is constructed as described above.
On the lower surface of the sliding stabilizing plate 1, screws 3e-1, 3e-2 and 3f-1, 3f-2 are fixed to mounting pieces 3a, 3b provided at the front and rear ends of the supporting stabilizer 3, respectively. Since there,
The slide stabilizer 1 can be stably moved by being slid with respect to the moving surface g. That is, the sliding stabilizer 1 has a width 8
cm, length is about 20 cm and the tip side is about 1/3 of the total length
A first raised portion 1a is provided, and a second raised portion 1b is formed on the rear end side, so that the front end side is inclined in a floating state and a part of the ground portion 1c is moved. g is fully grounded to a length of 5-8 mm,
The sliding stabilizer 1 has a sufficient contact area with the moving surface g and can be stably moved.

When there is an obstacle u on the moving surface g, the slide stabilizing plate 1 is made of a flexible material such as plastic, and its leading end has a first curved portion having a large radius of curvature R. A portion 1a is formed, and a second raised portion 1b having a small radius of curvature R 'is formed on the rear end side, so that the front end side is mounted on the lower surface of the wheel 2 in a floating state at an inclination angle K shown in FIG. So that
Sliding can be performed smoothly over the obstacle u. When the obstacle u is taller, the slide stabilizing plate 1 is attached in the upwardly inclined state with the inclination angle K as described above, and the first sled provided on the tip end side of the slide stabilizing plate 1 as described above. Since the radius of curvature R of the raised portion 1a is larger than the radius of curvature R 'of the second raised portion 1b provided on the rear end side, the caster with a sled for climbing over an obstacle is provided on the rear end side of the slide stabilizer 1. The radius of curvature R 'of the second raised portion 1b
The sliding stabilizing plate 1 is rolled forwardly along. As a result, the floating state of the tip end side of the slide stabilizing plate 1 with respect to the moving surface g can be made larger than in the case of the normal moving state as shown in FIG. 6, and the tall obstacle u can be easily removed. You can get over it.

Moreover, since the sliding stabilizer 1 does not contact the entire surface of the moving floor g but a part thereof, when the sliding stabilizer 1 climbs over a tall obstacle u, FIG. Slide stabilizer 1 having a large radius of curvature R as shown in FIG.
U tip side, first ground to the moving surface g and continue to slide the wake connexion gradually and smoothly moving surface g to the radius of curvature R, the rear end is still an obstacle having simultaneously small radius of curvature R '
And the radius of curvature R 'is set as the tip moves.
, And falls while sliding along the front wall of the obstacle u smoothly and gradually, so that the impact due to the fall is alleviated as the slide stabilizer 1 passes over the obstacle u.

Moreover, the operation of the direction change and the side slip can be easily and reliably performed, and the movement can be reliably performed. Further, since the second rising portion 1b is formed on the rear end side of the slide stabilizing plate 1, the rearward movement is also possible.

The caster with a sled for climbing over an obstacle is added to the slide stabilizing plate 1 because rubber members 5a and 5b as adjusting tools are interposed between the slide stabilizing plate 1 and the support stabilizing legs 3. Shock is buffered.

FIGS. 8 and 9 show a second embodiment. As shown in FIG.
Is a slide stabilizer formed integrally with the support stabilizer 7a and having the same form as the slide stabilizer 1 of the first embodiment, that is, the slide stabilizer 6 is made of a flexible material such as a metal such as plastic or aluminum. The first raised portion 6a whose tip side has been raised with a radius of curvature R approximately one-third of the total length using a conductive material, and the first raised portion 6a has risen from the moving surface g. The sliding stabilizing plate 6 is formed so as to be inclined forward at an inclination angle K of several degrees, for example, about 3 degrees, and is smaller than the radius of curvature R of the first raised part 1a at the rear end side. Second curved portions 6b each having a radius of curvature R 'are formed. The sliding stabilizer 6 has a width of 8 cm in order to measure the stability of movement.
It is formed to have a length of about 20 cm and a thickness of about 5 mm. A hole 6d provided substantially at the center of the lower surface of the slide stabilizer 6
Is the hole 6d rotatably supported by the support stabilizing leg 7b.
Is opened such that the lower part of the wheel 2 faces the moving surface.

The wheel 2 shown in FIG. 8 is the same as that of the first embodiment, that is, the sliding stability in which the lower side of the wheel faces the moving surface and the lower surface of the sliding stabilizer 6 near the second raised portion 6b contacts the ground. The support stabilizing leg 7b, the axle 2a of the wheel 2, and the axle nut 2b are supported in front of the ground contact portion 6c of the plate 6.
The support stabilizing legs 7-b, the wheel 2, and the axle 2a may include a driving mechanism such as a motor, an engine, and a magnetic driving mechanism.

The support stabilizing legs 7a and 7b shown in FIG. 8 form both the support stabilizing legs 7a and the support stabilizing legs 7b as a set, and perform the function of the support stabilizing legs 3 shown in the first embodiment. Realize. That is, the support stabilizing leg 7b is
And has a substantially rectangular side surface and a semicircular end portion, and is formed of a material capable of supporting a load of a solid object such as an instrument or a structure such as hard plastic or metal, and has a sliding stability. The support stabilizing leg 7a is formed so as to straddle the side surface of the support stabilizing leg 7a from the upper portion of the support stabilizing leg 7a formed integrally with the plate 6, and the support stabilizing leg 7a and the support stabilizing leg 7b are fixed to each other by a vertical adjustment screw 8 and an adjusting tool 9. The lower peripheral surface of the wheel 2 which penetrates the hole 6d formed in the slide stabilizing plate 6 can be slightly contacted with the moving surface g.

The supporting stabilizing leg 7a is formed integrally with the sliding stabilizing plate 6, and the supporting stabilizing leg 7a and the supporting stabilizing leg 7b are formed as one set. The function of the stabilizer 1 is realized. In the first embodiment, as a means for fixing the slide stabilizer 1 and the support stabilizer 3, an adjusting tool 5 is positioned between the slide stabilizer 1 and the support stabilizer 3, and the slide stabilizer 1, the support stabilizer 3, and Although the means for fixing the adjusting tool 5 with screws is used, the support stabilizing legs 7a are formed integrally with the slide stabilizing plate 6 and fixed in advance. In the first embodiment, the holes 3c-1.2 and 3d-1.2 are formed in the holes 3c-1.2 and 3d-1.2 so that the sliding stabilizing plate 1 fixed with screws can move back and forth. In addition, the top was formed in a semicircular shape with a long front and back rectangle. However, in this embodiment, since the means for fixing the support stabilizing leg 7a and the slide stabilizing plate 6 in advance is adopted, the means for varying the frictional force by adopting the fact that the wheel 2 can move up and down is adopted. did. That is, the support stabilizing leg 7b for rotatably supporting the wheel 2 by the vertical adjusting screw 8 and the vertical adjusting tool 9 is fixed to the support stabilizing leg 7a integrally formed with the slide stabilizing plate 6 by the screw 8, but the vertical stabilizing member is formed. By being formed in a structure that can be
Since the wheel 2 rotatably supported by the support stabilizing leg 7b can move up and down, the contact area of the contact portion 6c of the slide stabilizing plate 6 formed integrally with the support stabilizing leg 7a can be reduced. In FIG. 8, the support stabilizing leg 7b is located outside the upper part of the support stabilizing leg 7a, but may be located inside. The support stabilizing leg 7b has a substantially rectangular side surface and a semicircular end, but any shape may be used as long as the wheel 2 can be rotatably supported.

The adjusting tool 9 shown in FIG. 8 is interposed between the support stabilizing leg 7a and the support stabilizing leg 7b as shown in the drawing, and is an adjusting material capable of appropriately moving the wheel 2 up and down. It is a rubber material that can be used as a buffer between the support stabilizing legs 7a and the support stabilizing legs 7b. The adjusting tool 9 made of the rubber material can be a pressure device such as a pneumatic pressure or a hydraulic pressure. The adjusting tool 9 can be a vertically movable pressure device incorporating a pressure sensor. At the same time, the adjusting tool 9 can be a front and rear movable pressure device incorporating a pressure sensor. Further, the adjusting tool 9 may be formed integrally with the support stabilizing legs 7a and 7b.

FIGS. 10 and 11 show a third embodiment. As shown in FIG. 10, the slide stabilizer 10 is a slide stabilizer formed separately from the support stabilizer 12a and the support stabilizer 12b, and has the same form as the slide stabilizer 1 of the first embodiment. This sliding stabilizer 1
Numeral 0 denotes a first raised portion 1 whose tip end is raised by using a flexible material such as a metal such as plastic or aluminum and has a large radius of curvature R which is approximately 1/3 of the entire length.
0a, and the first raised portion 10a is moved from the sliding surface g of the sliding stabilizer 10 with respect to the sliding surface gland 10b.
The sliding stabilizer 10 is formed so as to be lifted from the ground, and the sliding stabilizer 10 is formed to incline backward at an inclination angle K of several degrees, for example, about 3 degrees, with the sliding stabilizer grounding portion 10b as a base point. You. The slide stabilizer 10 is formed to have a width of about 8 cm, a length of about 20 cm, and a thickness of about 5 mm in order to ensure the stability of movement. The slide stabilizer 10
The hole 10c provided substantially at the center of the lower surface of the
The wheel 2 penetrating the hole 10c rotatably supported by b is opened so that the lower side of the wheel faces the moving surface.

In the wheel 2 shown in FIG. 10, the lower side of the wheel faces the moving surface, and the first raised portion 10a of the slide stabilizer 10
The support stabilizing leg 12a, the axle 2a of the wheel 2, and the axle nut 2b are supported behind the ground contact portion 10b of the slide stabilizer 10 whose nearby lower surface is grounded. The support stable leg 12a
The wheel 2 and the axle 2a may include a drive mechanism such as a motor, an engine, and a magnetic drive mechanism.

The support stabilizing leg 12 shown in FIG. 10 is formed by separating the support stabilizing leg 12a, the support stabilizing leg 12b, the vertical adjusting screw 8, the adjusting tool 9, the adjusting tool 11a, and the adjusting tool 11b in a separated manner. The function of the support stabilizing leg 3 shown in the example is realized. That is, the support stabilizing leg 12a has a hollow structure capable of accommodating the wheel 2, and has a substantially rectangular side surface and a semicircular end, and supports a load of a solid object such as an instrument or a structure such as hard plastic or metal. From the upper part of the support stabilizing leg 12b.
The support stabilizing legs 12a and the support stabilizing legs 12b are fixed by the vertical adjustment screws 8 and the adjusting device 9, and the supporting stable legs 12b and the sliding stabilizing plate 10 are connected to the adjusting device 1.
1a and the adjustment tool 11b,
The lower peripheral surface of the wheel 2 that has penetrated the hole 10c opened at 0 is slightly exposed to the moving surface g.

In the third embodiment, the sliding stabilizing plate 10 is adjusted by the adjusting tools 11a and 11b.
2b, the support stabilizing legs 12a and the support stabilizing legs 12b are fixed by up-and-down adjusting screws 8 and adjusters 9, and both the support stabilizing legs 12a and the support stabilizing legs 12b are formed as one set. Supporting stability leg 3 shown in the embodiment
And the function of the slide stabilizer 1 is realized.

In the first embodiment, as a means for fixing the slide stabilizing plate 1 and the support stabilizing leg 3, an adjusting tool 5 is located between the slide stabilizing plate 1 and the support stabilizing leg 3, and the sliding stabilizing plate 1 and the support stabilizing leg 3 are fixed. Although the means of fixing the leg 3 and the adjusting tool 5 with a screw is used, in the third embodiment, the slide stabilizing plate 10 is fixed to the supporting stabilizing leg piece 12c having a hinge structure by using the adjusting tool 11a. And an adjustment tool 11b on the support stabilizing leg piece 12d.
It is fixed using.

The sliding stabilizing plate 10 is connected to the supporting stabilizing leg piece 12.
A hinge receiver 10d is disposed on the surface 10e of the slide stabilizer in order to fix the hinge c to the c by using the adjusting tool 11a having a hinge structure. The adjustment tool 11a is provided with the sliding stabilizing plate 10 for the hinge receiver 1.
At the position of 0d, in order to fix the support stabilizing leg 12b to the support stabilizing leg piece 12c with the adjusting tool 11a, the support stabilizing leg 12b is fixed to the hinge receiver 10d using the hinge shaft 13a and the hinge shaft stopper 13b. The support stabilizing leg piece 12c and the adjusting tool 11
For a, a control device using hydraulic, pneumatic, hydraulic, spring, wire, electric and magnetic force can be installed.

The adjustment tool 11a can change the slide stabilizer 10 back and forth according to the movement of the slide stabilizer 10 by adjusting the adjustment tool 11b with the hinge receiver 10d as a base point. Adjustment tool 11
Reference numeral b denotes a vertically movable pressure device, which is a control device using hydraulic pressure, air pressure, water pressure, spring, wire, electric power, and magnetic force. The adjusters 11a and 11b may be vertically movable pressure devices incorporating a pressure sensor. When the adjusting tool 11b moves up and down, the sliding stabilizer 10 can be moved back and forth, so that the rear end 10f of the sliding stabilizer 10 is in contact with the moving surface g, and the contact area can be increased or decreased. Control the frictional force, and control the movement of the wheels by controlling the wheels of the existing casters and a mechanism such as a brake for controlling the axles holding the wheels for braking.

In the third embodiment, the slide stabilizing plate 10 has an integral structure with the adjuster 11b to be fixed to the support stabilizing leg 12d by using the adjuster 11b. However, the slide stabilizing plate 10 may have a structure separated from the adjusting tool 11b. When the slide stabilizer 10 and the adjustment tool 11b have a separated structure, the slide stabilizer 10 and the adjustment tool 11b are fixed to each other by means of screws, gluing, welding, or the like.

The adjusting device 11a is used to fix the sliding stabilizer 10 to the surface 10e of the sliding stabilizer at the position of the hinge receiver 10d, and to fix the supporting stabilizer leg 12b to the supporting stabilizer leg portion 12c having a hinge structure with the adjusting device 11a. Is fixed by a hinge receiver 10d. The control device using hydraulic, pneumatic, hydraulic, spring, rubber, wire, electric and magnetic force can be installed in the support stabilizing leg piece 12c and the adjusting tool 11a.

The wheel has a lower surface facing the moving surface from the hole of the slide stabilizer, is rotatably fixed to the support stabilizer, and the wheel held by the support stabilizer moves the wheel by vertical movement. The ground area of the stabilizer can be increased or decreased and a drive mechanism can be provided. The drive mechanism may be anything such as an engine or motor or magnetic drive or nuclear power.

In the first embodiment, the holes 3c-1.2 and 3d-1.2 are used to change the frictional force.
The hole was formed in a rectangular shape with a long front and rear and a semicircle at the top so that the slide stabilizer 1 fixed with a screw could move back and forth. However, in the third embodiment, the slide stabilizer 10, ie, the slide stabilizer 10 and the adjuster 11b are integrally formed,
a, support stabilizing leg 12b, adjustment tool 11a, vertical adjustment screw 8
Since the adjusting tool 9 and the adjusting tool 9 are fixed, the frictional force is adjusted by the control device of the adjusting tool 11a and the adjusting tool 11b, so that the frictional force can be varied.

The adjusting tool 9 shown in FIG. 10 is interposed between the support stabilizing legs 12a and the support stabilizing legs 12b as shown in the figure, and is an adjusting material capable of moving the wheel 2 up and down as appropriate. Support stability leg 12a and support stability leg 1
2b is a rubber material that can be used for buffering. The adjusting tool 9 made of the rubber material can be a pressure device such as a pneumatic pressure or a hydraulic pressure. The adjusting tool 9 can be a vertically movable pressure device incorporating a pressure sensor.
At the same time, the adjusting tool 9 can be a front and rear movable pressure device incorporating a pressure sensor. Further, the adjuster 9 may be formed integrally with the support stabilizing legs 12a and 12b.

FIG. 12 is a conceptual diagram showing a wheel having the largest size to be compared with a caster with a sled for overcoming obstacles as shown in FIG.

[0047]

As described above, the present invention relates to a device such as a brake.
Braking can be performed without controlling the movement of the wheels in the frame. Ma
Taller than the wheel while maintaining stability
It is easy to get over a step
Small hit, easy to move backward, change direction and sideways
Easy to move.

[Brief description of the drawings]

FIG. 1 shows a caster with a sled for riding over an obstacle according to the present invention .
It is a side view showing one example.

FIG. 2 is a front view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a perspective view showing a main part of the same.

FIG. 5 is a cross-sectional view showing the state of the grounding unit.

FIG. 6 is a cross-sectional view illustrating a use state when the vehicle climbs over a tall step.

FIG. 7 is a cross-sectional view when the vehicle gets over the vehicle.

FIG. 8 is a side view showing a second embodiment of the present invention.

FIG. 9 is a perspective view showing a main part of the same.

10 is a side view showing a third actual施例of the present invention.

FIG. 11 is a perspective view showing a main part of the same.

FIG. 12 is a diagram showing the first point of contact with the obstacle and the wheel contact portion of the caster with a sled for overtaking obstacles, and the distance between the two points is defined as the first point of contact between the wheel contact portion of the large wheel and the obstacle. It is a conceptual diagram which calculated the wheel of the magnitude | size which has the distance between these two points assuming two points.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Sliding stabilizer 1a 1st rising part 1b 2nd rising part 1c Grounding part 1d Hole provided in the center 1e-1, 4 Hole formed in the lower surface 2 Wheel 2a Axle 2b Axle and nut 3 Support stability Legs 3a and 3b Attachment piece 3c-1, 2 Hole at support stabilization leg attachment piece 3d-1, 2 Hole at support stabilization leg attachment piece 3e-1, 2 Screw 3f-1, 2 Screw 3g Axle hole 3h Top 3i Projection 4 Mounting tool 4a Screw 4b Nut 4c-1, 2 Rubber 4d-1, 2, 3 Washer 5 Adjusting tool 5a Rubber 5b Rubber 6 Sliding stabilizing plate 6a First curved portion 6b Second Curved portion 6c Ground contact portion 6d Hole 7a Support stabilizing leg 7b Support stabilizing leg 8 Up and down adjustment screw 9 Adjusting tool 10 Sliding stabilizer 10a First raised portion 10b Ground portion 10c Hole provided at center 10d Ban receiving 10e surface 10f rear end 11a adjuster 11b adjuster 12 supports a stable leg g moving surface u obstacle K inclination angle f loading axis R large radius of curvature R 'small radius of curvature

Continuation of the front page (56) References JP-A-10-226202 (JP, A) JP-A 9-10039 (JP, A) JP-A-7-236670 (JP, A) JP-A 64-44301 (JP) , A) Japanese Utility Model Showa 50-114856 (JP, U) Japanese Utility Model Application Hei 6-81867 (JP, U) Japanese Utility Model Utility Model 3-16655 (JP, Y2) Registered Utility Model 2721819 (JP, Y2) Registered Utility Model 3033245 (JP, Y2) JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60B 33/00 B60B 19/00 B62B 13/18

Claims (8)

(57) [Claims] A cascade in which a sliding stabilizer and wheels are grounded.
The slide stabilizer is formed of a flexible material.
As well as sloping forward or backward,
And is movable relative to the wheels in the front-rear direction.
Ri and relative to the sliding stabilizer in the longitudinal direction relative to the wheel
The sliding stabilizer and the wheels touched down by moving
That the contact area of the sliding stabilizer is changed
Caster to be characterized. 2. A caster in which a sliding stabilizer and wheels are grounded.
The slide stabilizer is formed of a flexible material.
As well as sloping forward or backward,
And, it is relatively movable vertically with respect to the wheel.
Ri and relative to the sliding stabilizer up and down with respect to the wheel
The sliding stabilizer and the wheels touched down by moving
That the contact area of the sliding stabilizer is changed
Caster to be characterized. 3. A caster in which a slide stabilizer and wheels are grounded.
The slide stabilizer is formed of a flexible material.
As well as sloping forward or backward,
And, the inclination angle of the slide stabilizer can be changed, and by changing the inclination angle of the slide stabilizer,
When the slide stabilizer and the wheels are in contact with the ground,
Casters characterized by changing the contact area
- 4. A first stabilizing plate is provided on a tip end side of the sliding stabilizing plate.
There is a raised part and a second raised part on the rear end side.
4. The method according to claim 1, wherein the second member is formed.
The caster described. 5. A first raised portion of the slide stabilizer.
Is raised about 1/3 of the total length of the sliding stabilizer.
And the second raised portion is formed by the first bent portion.
Characterized by having a smaller radius of curvature than the rising part
The caster according to claim 4, wherein 6. A sliding stabilizing plate having a hole formed therein , wherein said wheel is disposed in said hole.
A caster according to any one of claims 1 to 5. 7. The wheel according to claim 1 , wherein said wheel is inserted into a hole of said slide stabilizer.
7. The device according to claim 6, wherein the device moves back and forth.
caster. 8. The wheel according to claim 1, wherein the wheel is inserted into a hole of the slide stabilizer.
8. The method according to claim 6, wherein the movable member moves up and down.
A caster on it.