JP3215844U - Caster device and storage rack - Google Patents

Abstract

A caster device that has a small number of parts, can be simplified in structure, can be manufactured at low cost, can smoothly move a braking operation member, and can smoothly perform lock operation and unlock operation of wheel rotation. And providing a storage rack. A caster device according to the present invention includes four wheels, a wheel holding member having a rotation lock member for locking and unlocking the rotation of the wheel, and a linear movement with respect to the wheel holding member. A brake operation member that can be engaged, a pedal portion 6 that moves the brake operation member, and a connecting member that connects the pedal portion 6 and the brake operation member are provided. The connecting member is directly connected to the braking operation member so that it can move in the same direction together with the braking operation member when the braking operation member moves. [Selection] Figure 1

Description

  The present invention relates to a caster device having wheels and a storage rack.

  A caster device having wheels has been widely known. For example, Patent Document 1 discloses a caster device having wheels. The caster device disclosed in Patent Document 1 includes four wheels, a wheel holding member that holds each of the four wheels rotatably, and is arranged to be movable in a linear direction with respect to the wheel holding member. A braking operation member that locks and unlocks rotation; a rotation member that is connected to the braking operation member and is rotatable with respect to a wheel holding member; a connection member that is connected to the rotation member; And a pedal portion connected to the connecting member for moving the braking operation member. For example, when the pedal portion is depressed, the rotating member rotates through the connecting member, and the braking operation member moves in one direction of the linear direction along with the rotation. That is, the braking operation member is moved in one direction of the linear direction while converting the rotational motion of the rotating member into the linear motion of the braking operation member. As a result, the rotation of the four wheels can be locked.

Utility Model Registration No. 3173158

  However, in Patent Document 1, a rotating member is disposed between the braking operation member and the pedal portion in addition to the connecting member, and the connecting member and the braking operation member are indirectly connected via the rotating member. ing. Therefore, the number of parts increases, the structure becomes complicated, and the manufacturing cost increases. Further, in Patent Document 1, since the braking operation member is moved in the linear direction while converting the rotational motion of the rotation member into the linear motion of the braking operation member, the braking operation member may be difficult to move smoothly. As a result, there may be a case where it is difficult to smoothly perform the lock operation and unlock operation of the wheel rotation.

  The present invention has been made to solve the above-mentioned problems, has a small number of parts, can simplify the structure, can be manufactured at a low cost, can smoothly move the brake operation member, and can rotate the wheel. It is an object of the present invention to provide a caster device and a storage rack that can smoothly perform a lock operation and a lock release operation.

  In order to solve the above problems, the present invention provides a plurality of wheels, a wheel holding member that rotatably holds the wheels, a braking operation member that locks and unlocks the rotation of the wheels, and the braking operation. A pedal portion for moving the member; and a connecting member that connects the brake operation member and the pedal portion; and the braking operation member moves to one side in a linear direction with respect to the wheel holding member. The connecting member is movably engaged with the wheel holding member so that the rotation of the wheel can be locked when moving, and the rotation of the wheel can be unlocked when moving in the other direction of the linear direction. Is directly connected to the brake operation member so that it can move in the same direction as the brake operation member when the brake operation member moves, and the pedal portion is operated as the pedal portion is operated. The connecting member is pressed and moved in the one direction side, and the connecting member is pulled back in the other direction as the operated pedal portion is returned to the original position. A caster device is provided that is connected to the caster device. Here, that the wheel can rotate means that the wheel rotates around the axis parallel to the mounting surface such as a floor surface on which the caster device is placed, and can travel while rolling on the mounting surface.

  According to this, since the braking operation member and the pedal portion are directly connected by the connecting member, it is possible to dispense with providing a conventional rotating member. Thus, the present invention has a small number of parts, can simplify the structure, and can be manufactured at low cost.

  In addition, the connecting member is connected to the braking operation member so that it can move in the same direction together with the braking operation member when the braking operation member moves, and the connecting member is moved to one side in the linear direction as the pedal portion is operated. While being pressed and moved, the connecting member is connected to the connecting member so as to return the connecting member to the other direction side in the linear direction as the operated pedal portion is returned to the original position. Accordingly, both the braking operation members move in the linear direction according to the movement of the connecting member in the linear direction. Therefore, it is not necessary to move the braking operation member in one direction of the linear direction while converting the rotational motion of the rotating member into the linear motion of the braking operation member as in the prior art, and the braking operation member can be moved smoothly all the time. The wheel rotation lock operation and the lock release operation can be performed smoothly.

  Further, in the caster device, the wheel is rotatably held by the wheel holding member, and the wheel holding member includes a turning lock member for turning and releasing the turning lock of the wheel, and the turning lock member. Is configured to lock the wheel when the brake operation member is moved in one direction, and to release the lock when the wheel is locked when the brake operation member is moved in the other direction. Can be configured. Here, that the wheel can turn means that the wheel can rotate around an axis perpendicular to the mounting surface.

  According to this, it is possible to lock the turning of the wheel by operating the pedal portion when locking the rotation of the wheel, and to release the turning lock of the wheel by operating the pedal portion when releasing the rotation lock of the wheel. it can. Therefore, it is possible to easily perform the operation of turning and releasing the turning lock of the wheel, and to make it convenient to use.

  Further, in the caster device, the braking operation member includes at least two first braking operation members and a second braking operation member that extend in parallel to each other in the linear direction, and the connection member includes the first braking operation member. A first connecting member extending in a direction perpendicular to the first braking operation member and the second braking operation member and connected to each of the first braking operation member and the second braking operation member; and extending in the linear direction. A first connecting member and a second connecting member connected to each of the pedal portions, wherein the pedal portion is attached to a pedal portion main body and a storage rack main body equipped with the caster device. The pedal part body includes a held part rotatably held by the storage rack body attachment part, a pedal operation part for operating the pedal part body, and the second connecting member. And a connected member that is freely connected, and the connected member is arranged so that the second connecting member can be pressed in the one direction as the pedal operating portion is operated. Can be configured.

  According to this, the force applied to the pedal portion when the pedal portion is operated is efficiently transmitted from the first connecting member and the second connecting member to the first braking operation member and the second braking operation member, and the braking operation member is further increased. It moves smoothly, and the rotation operation and unlocking operation of the wheel can be performed more smoothly.

  On the other hand, the above-described problem is solved by providing a storage rack comprising any one of the above-described caster devices and a storage rack body to which the caster device is attached.

  According to this, in a state where articles are stored in the storage rack body, the brake operation member can be smoothly moved and operated via the connecting member by operating the pedal portion. Therefore, it is possible to provide a storage rack that is excellent in operability with respect to the operation of locking and releasing the rotation of the wheels.

  The caster device and the storage rack of the present invention have a small number of parts, can simplify the structure, can be manufactured at a low cost, can smoothly move the braking operation member, and can perform the lock operation and unlock operation of the wheel rotation. Can be performed smoothly.

It is the perspective view seen from the slanting upper side of the storage rack which concerns on one Embodiment which has the caster apparatus of this invention. It is the perspective view seen from the diagonally upper side of the caster apparatus of the storage rack of FIG. It is a top view of the caster apparatus of the storage rack of FIG. It is a side view of the caster apparatus of the storage rack of FIG. It is a disassembled perspective view of the principal part of the wheel holding member and the brake operation member which hold | maintained the wheel in the caster apparatus of the storage rack of FIG. It is sectional drawing of the wheel holding member and the braking operation member which hold | maintained the wheel in the caster apparatus of the storage rack of FIG. FIG. 2 is an enlarged cross-sectional view of main parts of a wheel holding member and a brake operation member that hold wheels in the caster device of the storage rack of FIG. 1. It is a disassembled perspective view of the stopper member and turning brake body in a wheel holding member. It is a top view of the caster apparatus of the rotation lock state of a wheel. FIG. 10 is a side view of FIG. 9. FIG. 10 is a cross-sectional view of the wheel holding member and the braking operation member in a state where the wheel of FIG. It is an expanded sectional view of the principal part of the wheel holding member and braking operation member of the rotation lock state of the wheel of FIG. It is a schematic top view of other embodiment of a caster apparatus. It is a perspective view of the principal part in other embodiment of FIG. It is a schematic top view of other embodiment of a caster apparatus.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a storage rack according to an embodiment having a caster device of the present invention as seen from an obliquely upper side, and FIG. 2 is a perspective view of the caster device of the storage rack of FIG. 3 is a plan view of the caster device of the storage rack of FIG. 1, and a side view of the caster device of the storage rack of FIG.

  The storage rack 1 of this embodiment includes a storage rack body 100 and a caster device 2 attached to the lower end of the storage rack body 100.

  In this embodiment, the storage rack body 100 includes a bottom wall 101, left and right side walls 102, a rear side wall 104, a ceiling wall 105, and two drawers 106 that can store articles.

  As shown in FIG. 2, the caster device 2 includes a plurality (four in this embodiment) of wheels 19, a wheel holding member 3 that rotatably holds each wheel 19, and a rotation operation and lock of the rotation of the wheel 19. A brake operation member 4 for releasing operation, a pedal portion 6 for moving the brake operation member 4, and a connecting member 5 connecting the brake operation member 4 and the pedal portion 6 are provided.

  As shown in FIG. 5, each of the wheel holding members 3 includes a substantially U-shaped bracket 13 in a side view, and left and right flange portions 13 a provided on the bracket 13 are bottom walls of the storage rack body 100. It is fixed to 101 with screws or the like (see FIGS. 1 to 3).

  As shown in FIG. 12, a recess 13d is formed in the bottom 13c between both side walls 13f of the bracket 13, and an oval caulking hole 13e is formed in the recess 13d. A main shaft member 15 is attached to the bracket 13.

  The main shaft member 15 is formed of a cylindrical body extending in the vertical direction. A central hole 15a penetrates in the vertical direction, and a pin member 17 is supported in the central hole 15a so as to be movable up and down.

  A sliding body 30 that is downwardly hemispherical and extends between the side walls 13 f of the bracket 13 is fitted into the upper head 17 a of the pin member 17 that protrudes between the side walls 13 f of the bracket 13.

  As shown in FIGS. 3, 5 to 7, and 12, a braking operation main body portion 40 a of a braking operation member 4 described later is disposed between both side walls 13 f of the bracket 13 so as to be reciprocally movable. Here, the brake operation main body 40a of the brake operation member 4 will be described prior to the description of the brake operation member 4.

  The brake operation main body 40a is formed at both longitudinal ends of a first brake operation member 41 and a second brake operation member 42 of the brake operation member 4 described later, and the brake operation main body 40a is inclined. The lower part 32a is sandwiched between the upper part 32b and the upper part 32c, which is higher than the lower part 32a and is continuously arranged on the Y2 side on the rear side. The pin member 17 extends from the upper part 32c to the lower part 32a. A fork-shaped slit 32d is provided for penetration.

  And if the sliding body 30 moves to the position of the lower part 32a by the movement of the braking operation member 4 (refer FIG. 12), the pin member 17 will be moved to the lower stage according to it. Further, as shown in FIG. 7, when the sliding body 30 is positioned at the upper portion 32c, the pin member 17 is moved up from the lower position shown in FIG. 7 and 12, the directions of Y1-Y2 appear opposite to those in FIGS.

  Returning to the description of the main shaft member 15, as shown in FIG. 12, as shown in FIG. A portion 15c is formed. Then, the flange 15b is applied to the lower surface of the recess 13d of the bracket 13 and the caulking portion 15c fitted into the caulking hole 13e is caulked outward so that the main shaft member 15 is positioned around the axis. The bracket 13 is fixed integrally.

  A hexagonal caulking portion 15d is formed in the lower portion of the main shaft member 15, and a hexagonal caulking hole 16a of a plate-like turning brake body 16 (see FIG. 8) is fitted into the caulking portion 15d from below. The Then, by swaging the caulking portion 15d outward, the turning brake body 16 is integrally fixed to the main shaft member 15 while being positioned around the shaft (non-rotatable state).

  As shown in FIG. 8, the turning brake body 16 is formed with convex portions 16 b at two places on the right and left sides of the caulking hole 16 a in the direction orthogonal to the axis.

  The spindle member 15 holds a holder member 18 as shown in FIGS. The holder member 18 has a slightly smaller diameter than the wheel 19 and is formed in a thick and substantially disk shape. A hollow portion 18b is formed around the axle hole 18a. A wheel 19 is rotatably supported on an axle 20 that is supported through the axle hole 18a.

  The holder member 18 is formed with a through hole 18c penetrating in the vertical direction at a position eccentric from the axle hole 18a. By fitting the through hole 18c to the main shaft member 15 from below, the holder member 18 that rotatably supports the wheel 19 around the axle 20 is held rotatably by the main shaft member 15. A spacer 21 a and a cap 21 b are interposed between the flange portion 15 b of the main shaft member 15 and the upper end of the holder member 18.

  A rectangular storage recess 18d that is wider than the through hole 18c is formed at a lower position of the through hole 18c of the holder member 18, and the brake block (rotation lock member) 23 is prevented from rotating in the storage recess 18d. It is stored so that it can move up and down. The braking block 23 is urged in the downward movement direction by a coil spring 24 disposed so as to be compressed between the upper wall of the housing recess 18 d and the upper surface of the braking block 23.

  The brake block 23 is formed with a small-diameter through hole 23b through which the lower portion of the main shaft member 15 passes. A large-diameter cylindrical hole 23c that opens downward is formed below the through hole 23b, and the swivel braking body 16 that is caulked by the caulking portion 15d of the main shaft member 15 is located in the cylindrical hole 23c. To come.

  A large-diameter sleeve 26a is fitted and fixed to the lower opening of the cylindrical hole 23c, and a small-diameter sleeve 26b is fitted to the center hole of the sleeve 26a from below. The lower part of the pin member 17 projects downward from the center hole of the small-diameter sleeve 26b, and an E-ring 27 is fitted into this projecting part so that the pin member 17 does not come out upward.

  Therefore, when the pin member 17 is moved upward in the upper portion 32c of the braking operation member 4 as shown in FIG. 7, the braking block 23 is moved to the coil spring 24 via the E ring 27, the small diameter sleeve 26b, and the large diameter sleeve 26a. It will be moved up against the urging force. As shown in FIG. 12, when the pin member 17 is moved downward to the lower portion 32 a of the braking operation member 4, the pin member 17 is also moved downward together with the braking block 23 by the urging force of the coil spring 24.

  A downward comb tooth 23 d that protrudes laterally is formed in the lower portion of the brake block 23. A plurality of gear portions 191 engaged with and engaged with the comb teeth 23d when the brake block 23 is moved downward are arranged in the circumferential direction of the inner peripheral surface of a running wheel 19a of the wheel 19 described later, which faces the comb teeth 23d. Is formed.

  Accordingly, as shown in FIG. 12, in association with the downward movement of the lower stage of the pin member 17, when the braking block 23 moves downward, the comb teeth 23 d of the braking block 23 mesh with the gear portion 191 of the wheel 19, thereby 19 is prevented from rotating (rotation locked state). Further, in association with the upward movement of the pin member 17, as shown in FIG. 7, when the braking block 23 moves upward, the comb teeth 23 d of the braking block 23 do not mesh with the gear portion 191 of the wheel 19. The wheel 19 is allowed to rotate (rotation unlock state).

  An insertion groove 23e penetrating the cylindrical hole 23c is formed in the upper portion of the brake block 23, and a stopper member 28 of a rectangular plate is inserted into the insertion groove 23e from the side to prevent rotation. Become. The stopper member 28 is prevented from coming out of the insertion groove 23e when the brake block 23 is housed in the housing recess 18d of the holder member 18.

  As shown in FIG. 12, the stopper member 28 is positioned above the turning brake body 16 that is caulked at the lower portion of the main shaft member 15. As shown in FIG. 8, the stopper member 28 is formed with concave portions 28 b that can engage with the convex portions 16 b at the two left and right portions of the turning braking body 16.

  In this embodiment, the concave portion 28b of the stopper member 28 and the convex portion 16b of the turning braking body 16 are engaged only when they are along the direction of the wheel 19 moved in the front-rear direction (Y1-Y2 direction). The orientation of the holder member 18 is set so as to prevent the holder member 18 from turning.

  In addition, the stopper member 28 and the turning brake body 16 are linked to the downward movement of the pin member 17, and the stopper member 28 and the turning brake body 16 are engaged to prevent the holder member 18 from turning, It functions as a turning lock member for the wheel 19. Then, in conjunction with the upper stage movement of the pin member 17, the upper and lower positions thereof are set so as to allow the holder member 18 to turn by releasing the engagement between the stopper member 28 and the turning brake body 16. Yes.

  Next, the wheel 19 will be described. In this embodiment, as shown in FIGS. 2 and 3, each wheel 19 is composed of a pair of traveling wheels 19 a that are rotatably supported by wheel axles 20 at positions on both sides of the holder member 18. In FIG. 5, illustration of the right traveling wheel 19a is omitted.

  Next, the braking operation member 4 will be described. As shown in FIGS. 2 and 3, the braking operation member 4 includes a first braking operation member 41 and a second braking operation member 42 that extend in the Y1-Y2 direction (linear direction) in parallel to each other with a space therebetween. And. The first braking operation member 41 and the second braking operation member 42 have the same configuration. The first braking operation member 41 will be described below, and the description of the second braking operation member 42 will be omitted.

  The first braking operation member 41 includes a braking operation main body portion 40a disposed at each of both ends in the longitudinal direction, and a holding member 40b that holds the two braking operation main body portions 40a.

  The braking operation main body 40a includes the slit 32d, the lower part 32a, the upper part 32c, and the inclined part 32b described above.

  And the braking operation main-body part 40a is engaged with the inner side of the bracket 13 of the wheel holding member 3 so that the pin member 17 has entered the slit 32d.

  Further, in this embodiment, the lower portion 32a and the upper portion 32c of the respective braking operation main body portions 40a of the first braking operation member 41 and the second braking operation member 42 are formed as shown in FIGS. 3 and 6, respectively. It arrange | positions so that it may be located in the Y1 side of the upper part 32c.

  The holding member 40b is composed of a long plate-like body, and holds the braking operation main body 40a via fixing pins at both ends in the longitudinal direction.

  The first braking operation member 41 and the second braking operation member 42 configured as described above are arranged on the lower surface side of the bottom wall 101 of the storage rack body 100 so as to be movable in the Y1-Y2 direction (linear direction). ing. Further, the holding members 40b of the first braking operation member 41 and the second braking operation member 42 can be moved only in the Y1-Y2 direction to the guide member 101a provided on the lower surface side of the bottom wall 101 of the storage rack body 100. As a result, each of the first braking operation member 41 and the second braking operation member 42 can reliably move in the Y1-Y2 direction.

  The pedal portion 6 includes a pedal portion main body 61 and a storage rack main body attachment portion 65 attached to the storage rack main body 100.

  As shown in FIGS. 3 and 4, the pedal section main body 61 includes a pedal operation section 62 for operating the pedal section main body 61 at the end on the Y1 side, and is stored in the end on the Y2 side. The rack body mounting portion 65 includes a held portion 60 that is rotatably held.

  Further, the pedal portion main body 61 includes a protruding piece 63 protruding downward and a rod-shaped connected member 64 held by the protruding piece 63 at the end on the Y2 side.

  The storage rack body attachment portion 65 is fixedly attached to the lower surface of the bottom wall 101 of the storage rack body 100. Then, in a state where the storage rack main body attaching portion 65 is attached to the bottom wall 101 of the storage rack main body 100, the pedal operation portion 62 protrudes from the storage rack main body 100 to the Y1 side. Further, in this state, the pedal operation unit 62 can swing on the storage rack body 100 about the held portion 60, and from the upper position shown in FIGS. 3 and 4 to the lower position shown in FIGS. The range up to can be moved.

  Next, the connecting member 5 will be described. The connecting member 5 includes a first connecting member 51 that is connected to each of the first braking operation member 41 and the second braking operation member 42, and a second that is connected to each of the first connecting member 51 and the pedal portion 6. And a connecting member 52.

  The first connecting member 51 is formed of a long plate-like body, and is extended in a direction orthogonal to the longitudinal direction of the first braking operation member 41 and the second braking operation member 42, and the first braking operation member 41 and the second braking member. Each of the operation members 42 is fixedly connected to each other by a fixing pin.

  The second connecting member 52 extends along the Y1-Y2 direction (linear direction) in the direction orthogonal to the longitudinal direction of the first connecting member 51, and the end on the Y2 side is fixed to the first connecting member 51. Are fixedly connected. Further, the Y1 side end portion of the second connecting member 52 is rotatably connected to the connected member 64 of the pedal portion 6. It should be noted that the connected member 64 may be inserted in the end of the second connecting member 52 on the Y1 side so as not to be movable and turnable. However, the connected member 64 is loosely fitted so as to be movable and turnable. Also good.

  Next, the operation of the caster device 2 will be described. In the state shown in FIGS. 3 and 4 when the pedal operation unit 62 is in the upper position, the sliding body 30 of each wheel holding member 3 is connected to the first brake operation member 41 and the second brake as shown in FIGS. Located at the upper part 32c of each operation member 42, the engagement between the stopper member 28 and the turning braking body 16 is released and the turning lock is released, and the comb teeth 23d come out of the gear portion 191 of each wheel 19. The rotation lock is released. That is, each wheel 19 is in a turn lock release state in which the wheels 19 can turn and a rotation lock release state in which the wheels 19 can rotate.

  3 and 4, when the pedal operation unit 62 of the pedal unit 6 is depressed, for example, as shown in FIGS. 9 and 10, the pedal unit main body 61 is moved to the storage rack main body 100. Then, the pedal operation unit 62 moves to the lower position, and the connected member 64 moves to the Y2 side.

  Thereby, the connection member 5 connected with the to-be-connected member 64 is pressed to the Y2 direction side (one direction side of the linear direction) in the Y1-Y2 direction. Further, with this pressing, the connecting member 5 presses the first braking operation member 41 and the second braking operation member 42 in the Y2 direction side, and the first braking operation member 41 and the second braking operation member 42 move in the Y2 direction side (straight line). Move in the other direction).

  Along with this movement, the sliding body 30 of each wheel holding member 3 slides on the inclined portion 32b from the upper portion 32c of each of the first braking operation member 41 and the second braking operation member 42 and moves relative to the lower portion 32a. The member 17 is moved from the upper position to the lower position as shown in FIGS.

  In this state, the stopper member 28 and the turning braking body 16 are engaged to be in the turning lock state, and the comb teeth 23d are engaged with the gear portions 191 of the wheels 19 to be in the rotation locked state. That is, each wheel 19 is in a turn-locked state in which the wheel 19 cannot turn and a rotation-locked state in which the wheel 19 cannot rotate.

  On the other hand, when the pedal operating portion 62 of the pedal portion 6 is returned to the position shown in FIGS. 3 and 4 from the state shown in FIGS. 9 and 10, the connected member 64 moves to the Y1 side, and thereby The connecting member 5 connected to the connecting member 64 is pulled back to the Y1 side. Accordingly, the connecting member 5 pulls back the first braking operation member 41 and the second braking operation member 42 in the Y1 direction, and the first braking operation member 41 and the second braking operation member 42 move in the Y1 direction.

  Along with this movement, the sliding body 30 of each wheel holding member 3 moves up the inclined portion 32b from the lower portion 32a of each of the first braking operation member 41 and the second braking operation member 42 and relatively moves to the upper portion 32c. The pin member 17 is moved to the upper stage shown in FIGS. 6 and 7, the engagement between the stopper member 28 and the turning braking body 16 is released and the turning lock is released, and the comb teeth 23d are connected to each wheel. The gear unit 191 is disengaged from the 19th gear portion 191, and the rotation lock is released. In other words, each wheel 19 enters a turn lock release state in which the wheels 19 can turn and a rotation lock state in which the wheels 19 can rotate.

  According to the storage rack 1 having the caster device 2 of the present invention configured as described above, the first braking operation member 41, the second braking operation member 42, and the pedal portion 6 are directly connected by the connecting member 5. Therefore, it is not necessary to provide a conventional rotating member. As a result, the present invention has a small number of parts, simplifies the structure, and can be manufactured at low cost.

  Moreover, the connecting member 5 is connected to the braking operation member 4 so that it can move in the same direction as the braking operation member 4 when the braking operation member 4 is moved, and the connecting member 5 is linearly moved as the pedal portion 6 is operated. While pressing and moving to one direction side (Y2 side in this embodiment) in the direction, the connecting member 5 is moved to the other direction side in the linear direction (this direction) as the operated pedal portion 6 is returned to the original position. In the embodiment, it is connected to the connecting member 5 so as to be pulled back to the Y1 side). Thereby, the braking operation member 4 is moved in the linear direction according to the movement of the connecting member 5 in the linear direction. Therefore, it is not necessary to move the braking operation member in one direction of the linear direction while converting the rotational motion of the rotating member into the linear motion of the braking operation member as in the prior art, the braking operation member 4 moves smoothly, and the wheel 19 The lock operation and the unlock operation can be smoothly performed.

  Further, the turning of the wheel 19 can be locked by operating the pedal portion 6 when the wheel 19 is rotationally locked, and the turning lock of the wheel 19 is released by operating the pedal portion 6 when releasing the rotational locking of the wheel 19. It can be performed. Therefore, for example, the operation of turning lock and turning lock release of the wheel can be simplified, and the turning lock operation and turning lock release operation of the wheel 19 can be performed smoothly.

  Further, the force applied when the pedal portion 6 is operated can be efficiently applied from the first connecting member 51 and the second connecting member 52 to the first braking operation member 41 and the second braking operation member 42, and the first braking operation member 41 and the 2nd braking operation member 42 move still more smoothly, and the locking operation and unlocking operation of the wheel 19 can be performed more smoothly.

  In the above-described embodiment, the four wheels 19 are used. However, the present invention is not limited to this configuration, and may be formed from five or more wheels 19 and can be changed as appropriate. For example, as illustrated in FIG. 13, one wheel 119 may be additionally arranged between two wheels 19 in each of the first braking operation member 141 and the second braking operation member 142.

  In addition, when the wheel 119 is added, the added wheel 119 may be held by the wheel holding member 3 and may be locked and unlocked by the braking operation main body 140a.

  Specifically, for example, as shown in FIG. 13, the first braking operation member 141 includes a first holding member 143 that holds the braking operation main body 40 a at an end portion on the Y1 side in the longitudinal direction, and an end on the Y2 side in the longitudinal direction. And a second holding member 144 that holds the braking operation main body 40a in the part, and further includes a braking operation main body 140a disposed at the center in the longitudinal direction.

  Similarly to the first braking operation member 141, the second braking operation member 142 includes a first holding member 143 that holds the braking operation main body portion 40a at the end portion on the Y1 side in the longitudinal direction, and a Y2 side in the longitudinal direction. A second holding member 144 holding the braking operation main body 40a at the end and a braking operation main body 140a disposed in the middle in the longitudinal direction are provided.

  As shown in FIG. 14, the intermediate braking operation main body 140a includes a slit 132d, a lower portion 132a, an upper portion 132c, and an inclined portion 132b. The braking operation main body 140a is fixedly held at each of the end portion on the Y2 side of the first holding member 143 and the end portion on the Y1 side of the second holding member 144. The braking operation main body 40a at the end of each of the wheel holding member 3, the Y1 side, and the Y2 side has the same configuration as described above.

  If comprised in this way, when the length of the Y1-Y2 direction in the 1st braking operation member 141 and the 2nd braking operation member 142 is long, while being able to add the wheel 119 to the intermediate part easily, other wheels 19 At the same time as the rotation lock and rotation lock release operation, the added wheel 19 can be rotated and unlocked.

  For example, as shown in FIG. 15, a wheel 219 may be added between the first braking operation member 41 and the second braking operation member 42.

  Specifically, the braking operation member 4 includes a third braking operation member 145 disposed between them in addition to the first braking operation member 41 and the second braking operation member 42. A wheel 219 held by the wheel holding member 3 is disposed at the end of the third braking operation member 145 on the Y2 side.

  The third braking operation member 145 is disposed so as to extend along Y1-Y2 in parallel with the first braking operation member 41 and the second braking operation member 42, and on the Y1 side in the longitudinal direction of the third braking operation member 145. An end portion is fixedly connected to the first connecting member 5, and a braking operation main body portion 240 a is provided at the end of the third braking operation member 145 on the Y2 side in the longitudinal direction. It is engaged with the wheel holding member 3 so that the rotation lock and the rotation lock release operation can be performed. The first braking operation member 41, the second braking operation member 42, and the wheel holding member 3 have the same configuration as described above.

  If comprised in this way, when the space | interval of the 1st braking operation member 41 and the 2nd braking operation member 42 is long, while being able to add the wheel 219 easily in the meantime, the other wheel 19 is rotation-locked and rotation-lock-released. Simultaneously with the operation, the added wheel 219 can be rotated and unlocked.

  For example, when adding wheels 119 and 219 as shown in FIG. 13 and FIG. 15, the wheels 119 and 219 to be added are not limited to those that can be operated to lock and unlock the rotation, and the wheels 119 and 219 to be added are unlocked and unlocked. What can not be operated may be changed appropriately.

  Moreover, in the said embodiment, although the stopper member 28 as a turning lock member and the turning brake body 16 were engaged / disengaged, the wheel 19 was made to be able to turn and release the turning lock. For example, the rotation lock member may not be provided, and only rotation lock and rotation lock release may be performed, which can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 Storage rack 2 Caster apparatus 3 Wheel holding member 4 Brake operation member 5 Connection member 6 Pedal part 16 Turning brake body 19 Wheel 28 Stopper member 41 First brake operation member 42 Second brake operation member 51 First connection member 52 Second connection Member 61 Pedal part main body 62 Pedal operation part 64 Connected member 65 Storage rack main body attaching part 100 Storage rack main body

Claims (4)

A plurality of wheels, a wheel holding member that rotatably holds the wheel, a braking operation member that locks and unlocks the rotation of the wheel, a pedal unit for moving the braking operation member, A braking member and a connecting member that connects the pedal part;
The braking operation member locks the rotation of the wheel when moving in one direction of the linear direction relative to the wheel holding member, and unlocks the rotation of the wheel when moving in the other direction of the linear direction. Movably engaged with the wheel holding member so as to be operable,
The connecting member is directly connected to the braking operation member so that the connecting member can move in the same direction together with the braking operation member when the braking operation member moves.
The pedal unit moves the connecting member by pressing the connecting member toward the one direction as the pedal unit is operated, and the connection is performed when the operated pedal unit is returned to the original position. A caster device, wherein the caster device is connected to the connecting member so as to pull the member back toward the other direction. The wheel is rotatably held by the wheel holding member,
The wheel holding member includes a turning lock member for turning and releasing the turning lock of the wheel,
The turning lock member can lock the wheel when the braking operation member moves in one direction, and can release the turning lock when the wheel is locked when the braking operation member moves in the other direction. The caster device according to claim 1, wherein the caster device is formed. The braking operation member includes at least two first braking operation members and a second braking operation member that extend in parallel to each other in the linear direction,
A first connecting member extending in a direction orthogonal to the first braking operation member and the second braking operation member and connected to each of the first braking operation member and the second braking operation member; A second connecting member extending in the linear direction and connected to each of the first connecting member and the pedal portion;
The pedal portion includes a pedal portion main body and a storage rack main body attaching portion attached to a storage rack main body equipped with the caster device.
The pedal part body is rotatably connected to a held part rotatably held by the storage rack body mounting part, a pedal operating part for operating the pedal part body, and the second connecting member. A connected member,
The said to-be-connected member is arrange | positioned so that the said 2nd connecting member can be pressed to the said one direction side as the said pedal operation part is operated. Caster device.   A storage rack comprising the caster device according to any one of claims 1 to 3 and a storage rack body to which the caster device is attached.

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