JP3883660B2 - Caster lock device in cabinet etc. - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention has a very simple structure, a wagon, a side table, in which both sides of a fixed caster are clamped by pressing pieces made of rubber or the like to stop the caster, and the stopper member is operated only by depressing the foot pedal, The present invention relates to a caster lock device in a cabinet or the like.
[0002]
[Prior art]
Conventionally, as a caster lock device in this type of cabinet or the like, there is a caster lock device that can be locked by directly depressing and pushing down a foot pedal that is attached to two casters via a cover or the like.
[0003]
Also, a stop mechanism connected to the caster from the upper part of the wagon body, for example, “a recess is provided on one end side of the top plate attached to the upper part of the table body and the other end of the table body from the gripper sliding opening of this recess. In a side table in which grippers for braking the wheels are inserted toward the wheels arranged on both sides of the lower side of the side table, the wheels are disposed on the upper side of the position where the grippers reach when pushed down. A wheel stopper that brakes the wheel is arranged so that it can swing up and down, and a lock release plate that lifts the protruding piece that locks the drawer is lowered at the lower side of the same arrival position so that its own weight can be lowered. A side table braking device in which the other end of a lock rod having a locking device attached to one end communicating with the outside is pivotally connected to the upper end of the lock plate having the convex piece mounted on the lower end thereof (actually). Kaisho 6 See JP -183728) are present.
[0004]
In addition, “a rotary caster is provided on one of the front and rear portions of the lower surface, a fixed roller is provided on the other, and a stopper mechanism comprising a stopper portion for restricting the rotation of the fixed roller and an operation portion for operating the stopper portion is provided. It is a mobile storage, the stopper part and the operation part are linked by wire, the fixed roller is arranged at the rear part of the front and rear part of the lower surface, the operation part is arranged at the front upper part of the storage part, and the stopper part is fixed The engagement portion provided on the inner side of the roller is configured to include an engagement portion that can be engaged and disengaged by moving in the direction of the rotation axis of the fixed roller, and the engagement portion is a rotation shaft of the fixed roller. There is a "movable storage" (see Japanese Patent Laid-Open No. 8-294418) that is arranged on the inner peripheral side of the outer peripheral end surface of the fixed roller in the core direction view.
[0005]
Furthermore, the operation unit is provided at the lower part of the main body to stop the caster. “The wheel is provided with a wheel and a stopper mechanism at the bottom of the wagon, and the wheel forms a locking part and is attached to the bottom. The stopper mechanism is connected to an operating portion that is swingably mounted around the pin at the end of the bottom, and is connected to the operating portion at one end and is elongated by an operation of the operating portion. It consists of a transmission part that can move in the direction and a regulation part that is connected to the other end of this transmission part via a pin and has a stopper part at the end part. The stopper part can be engaged with the locking part. Is a wagon (see Japanese Utility Model Publication No. 4-101632).
[0006]
[Problems to be solved by the invention]
However, in the prior art, since each of the two casters itself has a lock device, when stopping the rotation of the caster, it can be operated by stepping on the foot, but when releasing to rotate it Since it is difficult to release with a foot, it was crouched and operated by hand, which was very inconvenient.
[0007]
Moreover, the thing which operates the stop mechanism to a caster by operation of a handle | steering-wheel, such as a wagon, had the problem that the structure was complicated and assembly work was difficult. In addition, what is provided in the lower part of the main body shown in Japanese Utility Model Laid-Open No. 4-101632 to stop the caster is structurally difficult to operate with the foot (toe) and must be operated by hand. There was a problem that the caster could not be stopped.
[0008]
SUMMARY OF THE INVENTION In view of these points, an object of the present invention is to provide a caster lock device in a cabinet or the like that can be engaged and disengaged with a simple structure by only depressing a foot. It is.
[0009]
[Means for Solving the Problems]
The present invention is intended to solve the above-described problems, and employs the following technical means. According to the first aspect of the present invention, in a caster lock device for a cabinet or the like, a foot pedal is provided at the lower front side of the main body 1 of the cabinet or the like, and the rotation of the caster can be stopped and released by an operation of depressing the foot pedal. In the caster lock device, the tilting of the rotating rod connected to the foot pedal reduces the width against the spring in the slidable stopper, and stops holding the caster from both sides. maintaining, in addition, interlocking device is provided which operates by treading the operation of full Ttopedaru, the interlocking device has a cam groove and the locking recess, the shaft is engaged fixedly provided on the foot pedal to the cam groove combined, said locking recess to allow the locking projection and the locking which is formed on the receiving plate of the foot pedal, guiding the cam groove When releasing the attached stepping foot pedal rotates, the locking projection formed on the receiving plate of the foot pedal by a spring force is adopted technical means that engages with the engagement recess of the interlocking device.
[00 10 ]
DETAILED DESCRIPTION OF THE INVENTION
By adopting the above technical means, the present invention operates the foot lever by stepping on the toe of the foot with a simple configuration, thereby expanding and contracting the two lock operating pieces and locking them during the contraction. The casters can be engaged and disengaged by clamping the outer side surfaces on both sides so that they can be released during expansion.
[001 1 ]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of a horizontal cabinet according to an embodiment. 1 is a cabinet body, 2 is a foot pedal, 3 is a drawer container, 4 is a fixed caster, and 5 is a free caster.
[001 2 ]
Next, a specific example of the mounting portion of the caster lock device of the present invention will be described with reference to FIG. 2, and the example of the horizontally long cabinet shown in FIG. 1 will be described. First, when the drawer side of the drawer is viewed from the front, as an example showing the position viewed from the bottom side, the left front and rear casters are fixed casters 4, and the right front and rear casters are free casters 5. In the figure, a foot pedal 2 is provided on the front side to lock the fixed caster 4.
[001 3 ]
FIG. 3 shows a prior art cabinet. It is viewed from the bottom side, and all are free casters 5, and a stopper is provided on either the left or right caster.
[001 4 ]
Next, a specific embodiment of the caster lock device will be described with reference to FIG.
As what corresponds to the embodiment shown in FIG. 2, the one shown in FIGS. 4 to 9 does not operate the caster lock device, and is a diagram showing a movable state in which the caster is not locked. 10 and 11 are views showing a state where the casters are locked. FIG. 12 is an exploded perspective view of the foot pedal 2, and FIG. 13 shows a lock mechanism of casters.
[001 5 ]
First, the foot pedal 2 will be described with reference to FIG.
Needless to say, the lever plate 6 and the lever 7 may be integrated. The lever plate 6 is provided with an engagement hole 8, and the engagement hole 8 is engaged with an integral or separate engagement portion 10 formed in a part of the rotating rod 9. It is something that can be assembled. Further, a receiving plate 11 engaged with the lever plate 6 is provided, and an interlocking tool 14 is provided via a first spring 13 so as to be able to engage with and disengage from the protruding portion 12 of the receiving plate 11.
[001 6 ]
Next, a caster lock device will be described based on FIG.
The substantially L-shaped stopper A15 and the substantially U-shaped stopper B16 are assembled in such a way that they move in the sliding direction by the stepped screw 17 through the long holes 18 drilled in each, but do not move in the other directions. ing. The end 20 of the rotating rod 9 is inserted and assembled between the stopper A15 and the stopper B16, and the lever 7 of the foot pedal 2 is depressed to engage with the engaging hole 8 formed in the lever plate 6. The rotating rod 9 is rotated via the engaging portion 10 of the rotating rod 9, the end 20 is rotated by this rotation, and the spring 21 is compressed between the stopper A15 and the stopper B16 as shown in FIG. The stopper A15 is moved to the left in the drawing to clamp the both side surfaces of the fixed caster 4. Since the stopper rubber 19 is attached to the portion to be clamped as can be understood from FIGS. 11 and 13, the locking is more reliable.
[001 7 ]
Next, a state in which the caster moves, that is, a state in which the lock is released will be described based on FIGS.
As can be understood from the description of FIG. 13, two fixed casters 4 are connected to the bottom surface of the caster shown in FIG. 4 via a shaft 22 via a shaft 23, and one fixed caster 4 is locked. The fixed caster 4 can also be locked.
[001 8 ]
The concrete caster locking device in the embodiment of FIG. 2 will be described. In a state where the L-shaped stopper A15 and the U-shaped stopper B16 are reversed, the stopper A15 is overlapped so as to be covered with the stopper B16, It is fixed to the bottom surface of the cabinet body 1 with two stepped screws 17.
[00 19 ]
When the vertical piece 24 of the stopper A15 and the stopper A15 of the stopper B16 are superposed, the stopper rubber 19 is attached to the vertical piece 25 of the stopper B16 opposite to the vertical piece 24 of the L-shaped stopper A15. The stopper A15 and the stopper B16 are widened by a spring 21 so that the end 20 of the rotating rod 9 is always in a vertical state. This state is the state shown in FIGS.
[00 20 ]
Next, as can be understood from the description of FIG. 12, the foot pedal 2 in a state where the caster can be rotated and moved is the state shown in FIG. 7, and is always lifted upward by the second spring 26. Yes. Then, a cam hole 28 in which the interlocking tool 14 is engaged with the shaft 27 via the first spring 13 which is a tension spring in association with the lever 7, the lever plate 6 and the receiving plate 11 of the foot pedal 2 is shown in FIG. It is maintained in a vertical state as shown.
Further, as can be understood from FIGS. 8 and 9, the engaging portion 10 of the rotating rod 9 is combined so as to engage with the engaging hole 8 formed in the lever plate 6.
[002 1 ]
Next, the state in which the caster is locked will be described with reference to FIGS.
When the lever 7 of the foot pedal 2 is stepped on with a foot (as indicated by the arrow in FIG. 10), the engaging portion 10 of the rotating rod 9 is centered on the rotation center position 29 of the rotating rod 9 by the engaging hole 8 of the lever plate 6. And the interlocking tool 14 moves upward while rotating on the shaft 27 fixed to the lever plate 6 with the cam hole 28 as a guide in association with the first spring 13. At the same time, the engaging portion 30 provided at the lower portion of the interlocking tool 14 is engaged with and maintained by the protruding portion 12 provided at a part of the receiving plate 11. Then, as shown in FIG. 11, the end portion 20 of the rotating rod 9 rotates around the rotation center position 29, clamps the stopper A15 against the spring 21, and the both sides of the caster are fixed to the stopper A15 and the stopper. The casters are locked by clamping with B16.
[002 2 ]
Further, when the lever 7 of the foot pedal 2 is stepped on, the first spring 13 and the cam hole 28 of the interlocking tool 14, lever The engagement portion 30 of the interlocking tool 14 is disengaged from the protrusion 12 of the receiving plate 11 due to the relationship with the shaft 27 of the plate 6, and at the same time, when the depression of the lever 7 is released, the state of FIG.
[002 3 ]
【The invention's effect】
The present invention can obtain the following effects based on the above configuration.
(1) The caster can be stopped and released with a one-touch operation by depressing the foot pedal at the front lower part of the cabinet body.
(2) It can be performed with feet (toes) without being operated by hand, and does not require squatting.
(3) Two fixed casters can be locked with one lever.
[Brief description of the drawings]
FIG. 1 is a schematic overall perspective view showing a horizontally long cabinet body in an embodiment of the present invention.
FIG. 2 is a bottom view for explaining the arrangement of casters viewed from the bottom of the horizontally long cabinet shown in FIG. 2 of the present invention.
FIG. 3 is a bottom view for explaining the arrangement of casters in a conventional cabinet.
FIG. 4 is a front view of an embodiment showing an unlocked state of the caster lock device of the present invention.
FIG. 5 is a bottom view of the caster lock device in the embodiment shown in FIG. 4;
6 is a side view of the caster lock device in the embodiment shown in FIG. 4. FIG.
FIG. 7 is a side view showing the foot pedal in a movable state with the casters unlocked.
FIG. 8 is a bottom view of the foot pedal in the embodiment.
FIG. 9 is a front view of the foot pedal in the embodiment.
FIG. 10 is a side view showing the foot pedal in a locked state where the caster is locked and cannot be moved.
11 is a front view showing a locked state of the caster lock device of the embodiment shown in FIG.
FIG. 12 is an exploded perspective view of the foot pedal of the present invention.
FIG. 13 is an exploded perspective view of the caster lock device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Cabinet body 2 ... Foot pedal 3 ... Drawer container 4 ... Fixed caster 5 ... Free caster 6 ... Lever plate 7 ... Lever 8 ··· Engagement hole 9 ··· Rotating rod 10 ··· Engagement portion 11 ··· Receiving plate 12 ··· Projection portion 13 ··· First spring 14 · · · Interlocking tool 15 .... Stopper A 16 .... Stopper B
17 ... Screw with step 18 ... Long hole 19 ... Stopper rubber 20 ... End 21 ... Spring 22 ... Bearing 23 ... Shaft 24 ... ··· Vertical piece of stopper A 25 ··· Vertical piece of stopper B 26 ··· Second spring 27 · · · Shaft 28 · · · Cam hole 29 · · · Center of rotation 30 · · · ... engagement part

Claims (1)

The foot pedal 2 provided in the lower front of the main body 1 of the cabinet or the like, stops the rotation of the casters 4 by the operation stomp the foot pedal 2, the caster locking device can be released, rotating rod was continuously provided to the foot pedal 2 the tilting of 9, by condensation width sandwiched stop casters 4 from both sides against the spring 21 in the stopper 15 slidable to maintain the state of being sandwiched stop by this squished operation, in addition, full Ttopedaru interlocking device 14 is provided which operates by the second stepped operation, the interlocking member 14 has a cam groove 28 and the locking recess, the shaft 27 is engaged with and fixed to the foot pedal 2 is in the cam groove 28 such that said engagement recess may locking protrusion and the locking which is formed on the receiving plate of the foot pedal 2, with depression of the foot pedal 2 by rotating the cam groove 28 to guide When releasing the caster locking device in the feature and be Ruki cabinets such that the locking projection formed on the receiving plate 11 of the foot pedal 2 by a spring force is adapted to engage the locking recess of the interlocking member 14.

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