JP5215983B2 - Caster equipment - Google Patents

Description

The present invention relates to a caster equipment for moving wagon, the mobile body such as a chair.

  Conventionally, a moving body having a caster device is widely known. As such a moving body, there is one proposed in Patent Document 1, for example. This moving body is composed of wagons, and the wires connected to each brake caster are stretched to a predetermined position so as to pass through the struts of the wagon and are collected at one place, and the wires are simultaneously pulled. Thus, the wheel in the braking state of each braking caster can be operated to the braking release state.

JP 2008-137630 A

  However, since the wire is arranged so as to pass through the support column of the wagon as in Patent Document 1, it takes time to mount the brake caster on the wagon body (moving body body). Moreover, in the case where there is no support or the like through which the wire passes, the wire is exposed to the outside, and the appearance is impaired.

The present invention has an object to provide a readily Cass data device capable of mounting a brake caster to the mobile body.

In order to solve the above-mentioned problem, the invention of claim 1 is a caster device for moving a moving body, comprising a plurality of braking casters, a braking operation member for braking each of the braking casters, and the braking casters. A plurality of connecting members each connecting a braking operation member, and the braking casters are respectively supported by frame bodies at the corners of the mounting table or the mobile body, and the frame bodies include a connecting member storage portion, The holding unit and the bottom wall for holding the mounting table or the moving body main body, the main shaft has a shaft insertion hole through which the shaft member passes, the upper end side is fixed to the bottom wall of the frame body, The wheel is rotatably supported by the main shaft, and the wheel is rotatably attached to the axle of the frame. The rolling brake member is vertically movable and non-rotatably stored below the brake member storage portion of the frame. A first engagement member having a plurality of teeth on the upper surface side, a second engagement member having a plurality of teeth on the lower surface side, and a coil spring are accommodated on the upper side in the braking member accommodating portion of the frame, The first engagement member is non-rotatably held at the lower end of the main shaft, the second engagement member is non-rotatably locked to the rolling braking member, and the coil spring holds the second engagement member The first engagement member is urged toward the engagement member to engage both teeth, thereby braking the turning of the wheel through the frame and urging the rolling braking member toward the downward movement side. By engaging a gear with the second gear of the wheel, the rotation of the wheel is braked, and the shaft member has a braking member locking portion on the lower end side for locking the rolling braking member. , a connecting member engaging portion of the arcuate surface on the upper side, the brake operating member The brake operation member main body is disposed on the lower side of the mounting table or the movable body main body, and an operation means for rotating the brake operation member main body. The brake operation member main body includes the plurality of brake operation member main bodies. The brake caster is supported at a substantially central position of the brake caster so as to be rotatable substantially parallel to the mounting table or the movable body. The brake operation member main body rotatably connects the other end side of each of the connecting members and slides. The long groove is configured such that the distance from the center of rotation of the braking operation member main body gradually decreases in the circumferential direction from one end to the other end in the longitudinal direction of the long groove. Each of the shafts includes a connecting portion for a shaft member that is housed in a connecting member storing portion of the frame body , and includes a low portion and a high portion, and a guide portion between the low portion and the high portion. Connecting member locking part of member Is intended for locking, said long groove, said during the braking direction of rotation of the brake operating member body, said moving press connection member, the connection between the guide portion member locking portion the high portion and a low portion The shaft member is moved downward via the wheel to engage the teeth of both the second engagement member and the first engagement member to brake the turning of the wheel, and the first of the rolling braking member. A gear is engaged with the second gear of the wheel to brake the rotation of the wheel, and the long groove pulls and moves the connecting member when the braking operation member main body rotates in the brake releasing direction. By disengaging the teeth of both the second engagement member and the first engagement member by moving the shaft member upward through the low portion, the guide portion, and the high portion of the member locking portion, The first gear of the rolling braking member is released while releasing the braking of the turning of the wheel. Providing a caster apparatus characterized by being configured to release the brake and remove the engagement of the rotation of the wheel of the second gear of the wheel.

According to a second aspect of the invention, the caster apparatus odor Te claim 1, wherein the mounting table or the mobile body, on its lower surface, said operating means, each of the brake release state position and the braking state position of the shaft member s It is characterized by comprising operating means locking means for releasably locking at a position corresponding to.

According to the first aspect of the present invention, the brake caster is provided with a shaft member that releases the wheel braked by the brake member to the brake released state, and the connecting member has a shaft member at one end thereof. Shaft moving means for moving the vehicle over a range from a braking state position in a state to a braking release state position in which the wheel is in a brake release state. Further, the other end side of each of the connecting members is slidably and rotatably connected to the long groove of the brake operating member main body of the brake operating member , and the connecting member is connected to the shaft when the brake operating member is rotated relative to the connecting member. The shaft member can be moved from the braking state position to the braking release state position by being moved relative to the member .

Thereby, if the brake operation member body of the brake operation member is rotated in one direction with respect to the connection member, the shaft member can be moved from the brake state position to the brake release state position via the connection member. A wheel in a braking state can be brought into a braking release state.

  Therefore, it is possible to make it unnecessary to pass the wire through the column like the conventional wire, and the brake caster can be easily attached to the moving body. And even if it uses for the thing which does not have a support | pillar, it can be made into the thing which does not have a possibility that a wire may be exposed outside, and can apply widely to various moving bodies.

Further, the caster device includes a mounting table or a moving body main body mounted on each of the braking caster main bodies , and the braking operation member is disposed on the lower side of the mounting table or the moving body main body. If the movable body main body is placed on the mounting table, the caster device can be easily mounted on the movable body main body.

Further , the braking operation member main body includes a long groove that slidably and rotatably connects the other end sides of the connecting members, and the long groove extends from one end to the other end in the longitudinal direction of the braking operation member main body. The distance from the center of movement is configured to gradually shorten in the circumferential direction.

  Thus, for example, when the brake operation member main body is rotated, each of the connecting members can be drawn toward the center of rotation of the brake operation member main body, and each of the connection members is moved from the brake caster main body to the brake operation member main body. It becomes possible. In the movement, the shaft member can be moved from the braking state position to the braking release state position. Therefore, the shaft member of each brake caster can be easily operated.

Further , since the brake operation member main body is disposed at substantially the center position of the brake caster, a connecting member having the same length can be used and can be easily manufactured at low cost.

According to claim 2, the mounting table, on a lower surface side, the operating means engaging manipulation means for detachably locking the position corresponding to each of the braking state position of the shaft member and the brake release state position Since the stop member is provided, the shaft member can be maintained in a state of being locked at each of the braking state position and the braking release state position. It is possible to make it not move from the state position to the brake release state position.

It is the top view which abbreviate | omitted the mounting base of the caster apparatus of this invention. It is sectional drawing of the principal part of the caster apparatus of this invention. It is a one part perspective view of the braking caster of the caster apparatus of this invention. It is a disassembled perspective view of the principal part of the brake caster of the caster apparatus of this invention. It is a front view of the locking means for operation pieces. It is the top view which omitted the mounting base of the caster apparatus of the state which rotated the brake operation member and moved the shaft member from the brake state position to the brake release state position. It is a section explanatory view of an important section in the state where a shaft member has been arranged in a brake release state position. It is a perspective view of the important section in the state where the shaft member has been arranged in the brake release state position. It is a perspective view of the moving body which has the caster apparatus of this invention.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of the caster device according to the present invention with the mounting table omitted, FIG. 2 is a cross-sectional view of the main part of the caster device of the present invention, and FIG. It is a disassembled perspective view of the principal part of the brake caster of a caster apparatus.

  The caster device 1 of this embodiment includes four braking casters 2, a braking operation member 4 that performs braking operation on each of the braking casters 2, and a plurality of these braking casters 2 coupled to the braking operation member 4 (this In the embodiment, four (4) connecting members 3 and a plate-like mounting table 5 held on four braking casters 2 are provided.

  Each of the four brake casters 2 has the same configuration, and each brake caster 2 rotates the brake caster body 20 and the wheels 24 of the brake caster body 20 described later, as shown in FIGS. A brake member for braking and a shaft member 6 for releasing the wheel 24 braked by the brake member to a brake release state are provided.

  The brake caster body 20 includes a frame body 21 (not shown in FIG. 4), a main shaft 22 supported by the frame body 21, a frame 23 supported by the main shaft 22, and a pair of frames attached to both sides of the frame 23. The wheel 24 (refer FIG. 3) and the braking member which brakes rotation of the wheel 24 are provided. In FIG. 4, only one of the wheels 24 is shown.

  As shown in FIGS. 1 to 3, the frame body 21 includes a connection member storage portion 21 a that stores the distal end side (one end side) of the connection member 3 and a holding portion 21 b that holds the mounting table 5. The connecting member storage portion 21a is partitioned and formed in a U-shape with the upper surface open by a bottom wall 21c and both side walls 21d bent upward at substantially right angles from both end edges of the bottom wall 21c.

  The holding portions 21b are bent outwardly from the respective side walls 21d and formed in a substantially horizontal shape, and are disposed on both sides of the connecting member storage portion 21a.

  As shown in FIG. 2, the main shaft 22 is constituted by a cylindrical member having a shaft insertion hole 22 a through which the shaft member 6 is passed. The main shaft 22 is fixed to the bottom wall 21 c of the frame body 21 so that the main shaft 22 passes through a hole 21 e provided in the bottom wall 21 c of the frame body 21 to the lower side.

  As a result, the axial direction of the main shaft 22 extends in the vertical direction, and the connecting member storage portion 21a and the lower outside of the bottom wall 21c communicate with each other through the shaft insertion hole 22a.

  The frame 23 includes a main shaft insertion hole 23a through which the main shaft 22 passes, and a braking member storage portion 23b that stores a braking member below the main shaft insertion hole 23a. The frame 23 is rotatably supported by the main shaft 22 so that the main shaft 22 passes through the main shaft insertion hole 23a.

  Thereby, the frame 23 rotates around the main shaft 22 (YY in FIG. 2), and the wheel 24 can turn in the horizontal direction by the rotation of the frame 23. In addition, as shown in FIG. 4, the frame 23 of this embodiment is provided with holes in the side surface for weight reduction or the like, but this is not shown in FIG. The frame 23 can be smoothly rotated with respect to the main shaft 22 by a bearing 29 described later.

  Each wheel 24 is rotatably attached to an axle 23c provided on the frame 23, and can rotate around the axle 23c (XX in FIG. 2).

  The braking member includes turning braking members 26 a and 26 b that brake the rotation of the frame 23 (wheel 24) around the main shaft 22, a rolling braking member 27 that brakes the rotation of the wheel 24 around the axle 23 c, and a coil spring 28. Yes.

  As shown in FIGS. 2 and 4, the turning braking member includes a ring-shaped first engagement member 26 a and a ring-shaped second engagement member 26 b.

  The first engagement member 26a has a plurality of teeth on the upper surface side, and has an inner periphery formed in a hexagonal shape. The first engagement member 26a is held in a non-rotatable manner so that the inner periphery thereof is fitted into a hexagonal column portion 22b provided at the lower end side of the main shaft 22, and It is disposed in the braking member storage portion 23b.

  The second engagement member 26b has a plurality of teeth on the lower surface side that are detachably engaged with the teeth of the first engagement member 26a, and is locked to a rolling braking member 27 described later so as not to rotate. A recess 26c is provided.

  The second engagement member 26b is arranged so as to be movable in the vertical direction above the first engagement member 26a in the braking member storage portion 23b of the frame 23 so that the main shaft 22 passes through the inner periphery. It is installed.

  The rolling braking member 27 has a through hole 27a. The shaft member 6 is passed through the through hole 27a, and the hexagonal column portion 22b of the main shaft 22 holding the first engagement member 26a can be received. Yes.

  The lower end of the rolling braking member 27 is provided with a first gear 27d that is detachably engaged with a second gear 24d that is an internal gear provided on each of the wheels 24.

  The first gear 27d of this embodiment is composed of a pair of engagement teeth 27b and engagement grooves 27c, and the engagement grooves 24c and engagement teeth 24b provided in the second gear 24d of the wheel 24. Each is engaged.

  The rolling brake member 27 is disposed on the lower side of the second engagement member 26b in the brake member storage portion 23b of the frame 23 so as to be movable up and down with respect to the frame 23 and non-rotatable.

  The coil spring 28 is disposed on the upper side of the second engagement member 26b side in the braking member storage portion 23b of the frame 23, and the second engagement member 26b is attached to the lower side of the first engagement member 26a side. The second engaging member 26b and the rolling braking member 27 are engaged with each other while being engaged with each other. The coil spring 28 urges the rolling braking member 27 to the lower side of the wheel 24 on the second gear 24d side via the second engagement member 26b to mesh the two.

  Therefore, in this state, as shown in FIG. 2, the wheel 24 cannot rotate around the axle 23c of the wheel 24 due to the engagement of the rolling braking member 27 and the second gear 24d of the wheel 24, and the first Due to the engagement between the engagement member 26a and the second engagement member 26b, the brake 24 is in a braking state in which the wheel 24 can no longer rotate around the main shaft 22.

  Next, the shaft member 6 will be described. The shaft member 6 includes a shaft main body 61, a braking member locking portion 62 provided on the lower end side (one end side) of the shaft main body 61, and a connecting member engagement provided on the upper end side (the other end side) of the shaft main body 61. And a stop portion 63.

  The shaft main body 61 is passed through the connecting member housing portion 21a of the brake caster main body 20 through the shaft insertion hole 22a of the main shaft 22 and the through hole 27a of the rolling brake member 27 so as to be movable in the vertical direction in the axial direction.

  The braking member locking portion 62 is for locking with the rolling braking member 27. In this embodiment, the braking member locking portion 62 is formed of a cylindrical shape having a diameter larger than that of the shaft body 61. Further, in this embodiment, the braking member locking portion 62 is locked to the peripheral edge portion on the lower end side of the through hole 27 a of the rolling braking member 27 via the fixing auxiliary member 62 a and the bearing 29.

  The connecting member locking portion 63 is for locking with the connecting member 3. In this embodiment, the connecting member locking portion 63 is a semi-column having a circular arc surface 63 a obtained by dividing a cylindrical body having a larger diameter than the shaft main body 61 into two in the axial direction. The upper end of the shaft main body 61 is connected to the circular arc surface 63a.

  Then, the shaft member 6 configured as described above is pulled upward by a predetermined amount from the braking state position (the position shown in FIG. 2) of the shaft member 6 with respect to the braking caster body 20 in the braking state of the wheel 24. Then, as shown in FIG. 7, the braking member locking portion 62 pulls the rolling braking member 27 upward through the fixing auxiliary member 62 a and the bearing 28 in the braking member storage portion 23 b.

  As the rolling braking member 27 is pulled up, the first gear 27d of the rolling braking member 27 and the second gear 24d of the wheel 24 are disengaged, and the wheel 24 can rotate about the axle 23c.

  As the rolling brake member 27 is pulled up, the second engagement member 26b is pushed up, the engagement between the second engagement member 26b and the first engagement member 26a is released, and the wheel 24 rotates about the main shaft 22. Is possible.

  As described above, the shaft member 6 releases the braking around the axle 23c of the wheel 24 by the rolling braking member 27 from the braking state position, and the engagement between the second engaging member 26b and the first engaging member 26a. The wheel 24 moves up and down with respect to the brake caster body 20 to a position where the braking around the main shaft 22 of the wheel 24 can be released (braking release state position).

  Next, the connecting member 3 will be described. Each of the connecting members 3 has the same configuration, and each connecting member 3 includes a long plate-like connecting member main body 31 and a distal end side (one end) of the connecting member main body 31, as shown in FIGS. A shaft member connecting portion 32 that is movably connected to the shaft member 6 and a brake that is rotatably connected to the braking operation member 4 provided on the base end side (the other end side) of the connecting member main body 31. And an operation member connecting portion 33.

  In this embodiment, the connecting portion 32 for the shaft member is constituted by a plate-like body that is separate from the connecting member main body 31. The shaft member connecting portion 32 has substantially the same width as the connecting member main body 31 and can be movably stored in the connecting member storage portion 21 a of the frame body 21 together with the distal end portion of the connecting member main body 31.

  Further, the shaft member coupling portion 32 movably couples the coupling member locking portion 63 of the shaft member 6, and the shaft member 6 is braked when the shaft member coupling portion 32 moves relative to the shaft member 6. A shaft moving means for moving from the state position to the brake release state position is provided.

  The shaft moving means of this embodiment includes a low portion 32b, a high portion 32c having a height higher than the low portion 32b, a guide portion 32d disposed between the low portion 32b and the high portion 32c, and a connecting portion. And a groove 32a.

  The connecting groove 32a is formed along the longitudinal direction of the shaft member connecting portion 32 from the low portion 32b to the high portion 32c. Further, the groove width of the connecting groove 32a is set to be larger than the diameter of the shaft main body 61 and narrower than the connecting member locking portion 63 so that the shaft main body 61 can move relative to the connecting groove 32a. Yes.

  The low part 32b is configured to dispose the shaft member 6 in the braking state position, while the high part 32c is configured to dispose the shaft member 6 in the braking release state position. .

  Further, the guide portion 32d is formed so as to gradually increase in height from the low portion 32b to the high portion 32c, whereby the connecting member locking portion 63 of the shaft member 6 is increased from the low portion 32b to the high portion 32c. The part 32c is made to slide easily. In this embodiment, the guide portion 32d is formed in a curved shape from the low portion 32b to the high portion 32c. For example, the guide portion 32d may be an inclined surface that gradually increases in height from the low portion 32b to the high portion 32c. Can be changed as appropriate.

  In this embodiment, the shaft member connecting portion 32 configured as described above is fixed by fixing means such as welding so that the distal end side of the connecting member main body 31 is superimposed on the proximal end side. By fixing both of them, a stepped portion corresponding to the thickness of the connecting member main body 31 is formed on the proximal end side of the connecting groove 32a in the connecting member 32 for the shaft member, and the shaft moves through the connecting groove 32a. The connecting member locking portion 63 of the member 6 is in contact with the member 6 so that it does not move any further.

  Further, on the distal end side of the shaft member coupling portion 32 of this embodiment, a stop piece 32e formed by bending a part of the distal end of the shaft member coupling portion 32 upward is provided, and the coupling groove 32a is formed. The connecting member locking portion 63 of the shaft member 6 that has moved to the front end side comes into contact with the connecting member 32a so as not to come out of the connecting groove 32a.

  In this embodiment, the braking operation member connecting portion 33 is constituted by a sliding piece attached to the connecting member main body 31 so as to protrude downward from the connecting member main body 31.

  Next, the braking operation member 4 will be described. The braking operation member 4 includes a rotation braking operation member main body 41, a mounting base mounting shaft 42 that rotatably supports the rotation braking operation member main body 41, and an operation piece 43 that operates the braking operation member main body 41. .

  The brake operation member main body 41 is constituted by a disk-shaped member and includes four long grooves 41a as connecting member moving operation means. Each of the long grooves 41a extends in the circumferential direction in the longitudinal direction, and one end side forms a braking state position corresponding portion 41c that makes the connecting member 3 a position corresponding to the braking state position of the shaft 6, and the other end side thereof. A brake release state position corresponding portion 41b is provided that positions the connecting member 3 at a position corresponding to the brake release state position.

  The distance from the center O is set to gradually decrease from the braking state position corresponding part 41b toward the brake released state position corresponding part 41c, and the distance L1 from the center O of the braking state position corresponding part 41b is It is larger than the distance L2 of the brake release state position corresponding portion 41c.

  In this embodiment, the long grooves 41a are configured such that the distance from the center O gradually decreases in the clockwise direction in FIG. The sliding piece 33 is movably fitted in each of the long grooves 41a. Further, in this state, the braking operation member main body 41 is disposed substantially at the center of the four braking casters 2.

  The mounting table mounting shaft 42 is disposed in the central portion of the braking operation member main body 41 so as to be substantially concentric. Accordingly, the braking operation member main body 41 rotates around the mounting table mounting shaft 42 with the center O as the center of rotation.

  And as for this mounting base attachment shaft 42, as shown in FIG. In this embodiment, the mounting table mounting shaft 42 and the braking operation member main body 41 are rotatable with respect to each other. For example, the mounting table mounting shaft 42 and the braking operation member main body 41 are fixed and the mounting table mounting shaft 42 is fixed. May be rotatably attached to the mounting table 5.

  As shown in FIG. 1, the operation piece 43 is attached to the braking operation member main body 41 on the proximal end side, and includes an operation gripping portion 43 a on the distal end side.

  Next, the mounting table 5 will be described. The mounting table 5 is for mounting a moving body of a moving body to be described later. The mounting table 5 of this embodiment is formed of a rectangular shape having a predetermined thickness.

  On the lower surface of the mounting table 5, the operating piece locking means for releasably locking the operating piece 43 of the braking operation member 4 at positions corresponding to the braking state position and the braking release state position of the shaft member 6. Is provided.

  As shown in FIG. 5, the operating piece locking means of this embodiment includes a first locking member 81 that locks the operating piece 43 at a position corresponding to the braking position of the shaft member 6, and the operating piece 43 as a shaft. The second locking member 82 is configured to be locked at a position corresponding to the braking release position of the member 6.

  The first locking member 81 is configured by a plate-like body having elasticity, and the base end side thereof is fixed to the mounting table 5. Further, a locking portion 81a having a loading / unloading operation piece 81b is provided on the distal end side.

  The second locking member 82 has substantially the same configuration as that of the first locking member 81 and is disposed symmetrically. The base end side of the second locking member 82 is fixed to the mounting table 5. A locking portion 82a having a piece 82b is provided.

  The mounting table 5 configured as described above is illustrated in such a manner that each of the four corners is placed on the holding portion 21b of the brake caster body 20 from the upper side, as indicated by a one-dot chain line in FIG. It is fixed by fixing means such as bolts.

  Next, operation | movement of the caster apparatus of this invention is demonstrated. For convenience of explanation, the braking state of the wheel 24 will be described. In the braking state, as shown in FIG. 2, the shaft member connecting portion 32 is positioned at the lower portion 32b of the connecting member 3, and the sliding piece 33 of the connecting member 3 corresponds to the braking state position as shown in FIG. The operation piece 43 of the braking operation member 4 located at the portion 41b is in a state of being engaged with the engagement portion 81a of the first engagement member 81 as shown in FIG.

  From this state, the operation gripping portion 43a of the operation piece 43 is gripped and a pressing operation is performed on the right side in FIGS. As a result, the operation piece 43 depresses the insertion / removal operation piece 81b against the elasticity of the locking portion 81a of the first locking member 81 and is released from the locking portion 81a.

  Further, when the operation gripping portion 43a is operated to the right side in FIG. 1, the braking operation member main body 41 rotates counterclockwise in FIG. 1 with the center O as the center of rotation. At the time of the rotation, the brake operation member connecting portion 33 slides the long groove 41a from the brake state position corresponding portion 41c to the brake release state position corresponding portion 41b.

  Further, at the time of this sliding, the connecting member 3 is drawn toward the braking operation member main body 41 as shown in FIG. 6 and moves to the right side of FIG. During the movement, the connecting member locking portion 63 of the shaft member 6 moves from the low portion 32b to the high portion 32c through the guide portion 32d.

  When the operation gripping portion 43a is further operated, the operation piece 43 is locked to the locking portion 82a of the second locking member 82 as shown in FIG. In this state, as shown in FIG. 7, the connecting member locking portion 63 of the shaft member 6 is disposed in the high portion 32 c, thereby causing the shaft member 6 to bring the wheel 24 into a brake released state.

  In order to change from the braking release state to the braking state, the operation gripping portion 43a may be operated in the opposite direction to the above. As a result, the brake operation member main body 41 rotates counterclockwise in FIG. 6, and the brake operation member connecting portion 33 slides the long groove 41a from the brake release state position corresponding portion 41b to the brake state position corresponding portion 41c. Move.

  Then, the connecting member 3 moves to the braking caster 2 side during the sliding, and during the movement, the connecting member locking portion 63 of the shaft member 6 passes from the high portion 32c through the guide portion 32d to the low portion 32b. Move to.

  By this movement, the shaft member 6 is moved to the lower braking state position by the biasing force of the coil spring 28. Thereby, it can be in a braking state.

  Next, the moving body having the caster device 1 will be described with reference to FIG. In this embodiment, the moving body 100 is an article storage box, and includes a moving body main body 101 and a caster device 1 on which the moving body main body 101 is placed. The caster device 1 has the same configuration as described above.

  In this embodiment, the movable body main body 101 is configured with a vertical and horizontal dimension that is substantially the same as that of the mounting table 5, and the operation gripping portion 43 a of the operation piece 43 of the caster device 1 is the same as the movable body main body 101. It protrudes to the side.

  In addition, the mobile body 101 of this embodiment includes an article storage unit 102 that stores articles, and an opening 103 on the front side of the article storage unit 102, so that articles can be stored from the opening 103 into the article storage unit 102. Has been.

In the above embodiment, the configuration from four braking casters 2 of caster device 1 is not limited to this form, Ru can be suitably changed. Further, the number of connecting members 3 is not limited to that provided in the same number as that of the brake casters 2, but may be different from the number of brake casters 2 and can be changed as appropriate.

  In the above embodiment, the caster device 1 is provided with the mounting table 5, and the movable body main body 101 is mounted on the mounting table 5. For example, the movable body is mounted on the holding portion 21 b of the brake caster 2. A configuration in which the main body 101 is directly mounted and the mounting table 5 is not provided may be employed.

  Moreover, in the said embodiment, although the moving body was comprised from the article storage box, the moving body using the caster apparatus 1 is not specifically limited, For example, it puts on the side of a wagon, a chair, a bookcase, or a bed. It can be used for various things such as a storage base.

DESCRIPTION OF SYMBOLS 1 Caster apparatus 2 Braking caster 3 Connecting member 4 Braking operation member 5 Mounting base 6 Shaft member 41a Long groove (connecting member moving operation means)
100 mobile body 101 mobile body

Claims (2)

A caster device for moving a moving body,
A plurality of braking casters, a braking operation member for braking each of the braking casters, and a plurality of connecting members that connect the braking casters and the braking operation members,
The braking casters are respectively supported by a frame at a corner of the mounting table or the moving body main body,
The frame body includes a connecting member storage portion, a holding portion that holds the mounting table or the moving body main body, and a bottom wall.
The main shaft has a shaft insertion hole through which the shaft member passes, and the upper end side is fixed to the bottom wall of the frame,
The frame is rotatably supported by the main shaft,
The wheel is rotatably attached to the axle of the frame,
A rolling braking member is accommodated on the lower side in the braking member accommodating portion of the frame so that it can move up and down and cannot rotate.
A first engagement member having a plurality of teeth on the upper surface side, a second engagement member having a plurality of teeth on the lower surface side, and a coil spring are stored on the upper side in the braking member storage portion of the frame,
The first engagement member is non-rotatably held at the lower end portion of the main shaft, and the second engagement member is non-rotatably locked to the rolling braking member,
The coil spring urges the second engagement member toward the first engagement member to engage both teeth, thereby braking the turning of the wheel through the frame and the rolling brake member. Biasing the rotation of the wheel by urging downwardly and engaging the first gear with the second gear of the wheel,
The shaft member has a braking member locking portion for locking the rolling braking member on the lower end side, and has a connecting member locking portion of an arc surface on the upper end side,
The braking operation member is disposed on the lower side of the mounting table or the moving body main body, and includes a braking operation member main body and operation means for rotating the braking operation member main body.
The braking operation member main body is supported at a substantially central position of the plurality of braking casters so as to be rotatable substantially parallel to the mounting table or the moving body main body.
The brake operation member main body includes a long groove that rotatably connects and slides the other end side of each of the connection members,
The long groove is configured such that the distance from the center of rotation of the braking operation member main body gradually decreases in the circumferential direction from one end to the other end in the longitudinal direction.
Each of the connecting members is housed in a connecting member storage portion of the frame body at one end side thereof , and has a low portion and a high portion, and a shaft member connecting portion having a guide portion between the low portion and the high portion. And locking the connecting member locking portion of the shaft member,
The long groove, upon the braking direction of rotation of the brake operating member body, said moving press coupling member, said shaft member said coupling member locking portion via the guide portion and the lower portion and the high portion By moving downward, the teeth of both the second engagement member and the first engagement member are engaged to brake the turning of the wheel, and the first gear of the rolling braking member is moved to the second gear of the wheel. To brake the rotation of the wheel,
The long groove pulls and moves the connecting member when the braking operation member main body rotates in the braking release direction, so that the connecting member locking portion is connected to the shaft member via the low portion, the guide portion, and the high portion. To disengage the teeth of both the second engagement member and the first engagement member to release the braking of the turning of the wheel, and the first gear and the wheel of the rolling braking member A caster device configured to release the braking of the rotation of the wheel by disengaging the second gear .   The mounting table or the movable body main body has an operation means engaging mechanism that detachably engages the operation means at positions corresponding to a braking state position and a braking release state position of the shaft member on a lower surface side thereof. The caster device according to claim 1, further comprising a stopping means.

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