JPH04113201U - spring caster - Google Patents

Abstract

(57) [Summary] [Purpose] To enable casters to operate when a drawer with casters is taken in and out, even if there is a convex part on the floor in the direction in which the casters move. [Structure] Since the roller 6 rolling on the floor 13 moves over the convex part 14 of the floor, the roller 6 itself moves up and down. To make this vertical movement, a tension coil spring 1 is attached to the small shaft 9 of the roller 6 and the pin 17 of the leg 5.
Both ends of 0 are fixed. The leg portion 5 and the fixture 4 are connected by a large shaft 7. This connection is made via a torsion coil spring 8 and a ring 11. This ring 11 allows the leg portion 5 to rotate. The fixture 4 is fixed to the drawer base 2 with screws 12. [Effect] When the spring caster 3 rolls on the floor 13, even if there is a convex portion 14, the spring caster 3 adjusts vertically by the deflection of the torsion coil spring 8, and rolls smoothly on the floor 13. When the casters 3 are stored inside the device 1, the casters 3 are vertically adjusted by the tension coil springs 10 and smoothly roll on the floor 13.

Description

[Detailed explanation of the idea]

The present invention relates to casters, and particularly to casters provided in a housing.

0001

【Technical field】

Referring to FIG. 10, the conventional caster has a roller part 16 that rolls on the floor and a caster that rolls on the floor. A fixing fitting 15 for fixing the main body of the main body to the drawer base 2 is provided. Casters like this Now, once the casters are fixed to the drawer stand 2, you can freely move them up and down relative to the floor. There is no degree. Therefore, if the floor in the direction in which the casters move is uneven, the casters will move. There was a drawback that it disappeared.

0002

[Purpose of invention]

The purpose of this invention is to provide casters that can be moved smoothly even on uneven floors. It is to be.

0003

[Structure of the idea]

The casters of this invention have a roller for rolling on the floor and a roller that moves up and down. a tension coil spring with one end attached to a roller shaft for motion; A leg on which the roller shaft is attached so that the roller can be rotated, and a leg on which the roller is attached to the device. A fixing bracket for attaching the leg, and a connecting point between the fixing bracket and the leg as an axis. and a screw coil spring for rotatably attaching the connection point. Ru.

0004

【Example】

Next, one embodiment of the present invention will be described in detail with reference to the drawings.

[0005] Referring to FIGS. 1 and 2, one embodiment of the present invention includes a drawer base 2 and It includes spring casters 3 attached to a base 2.

[0006] Through this operation of attaching the spring casters 3 to the drawer base 2, the spring casters The configuration of the star 3 will be explained in detail.

[0007] Referring to FIG. 3, the roller part 6 is formed by a small shaft 9 and a ring 11, 17. In addition, the small shaft 9 and the pin 17 protruding from the leg 5 are connected by a tension coil spring 10. Furthermore, the leg portion 5 is linked to the large shaft 7. It is attached to the fixing metal fitting 4 by the hook 11. This installation is for torsion coil spring 8. A reaction force is applied. The fixture 4 with the legs 5 attached in this way is It is attached to the drawer stand 2 by the screw 12.

[0008] Next, the motion of this spring caster 3 rolling on the floor will be explained with reference to FIGS. 4 to 9. explain.

[0009] First, the spring caster 3, which is an embodiment of the present invention, is moved from the right side to the left side on the floor 13. The operation of rolling over the convex portion 14 will be explained.

0010 Referring to FIG. 4, the spring casters 3 are located inside the housing 1 together with the drawer stand 2. It is pulled out and rolled on the floor 13.

[0011] Referring to FIG. 5, the spring caster 3 rolls on the protrusion 14 on the floor 13. . At this time, the torsion coil spring 8 attached to the spring caster 3 As a result, the roller portion 6 of the leg portion 5 moves up and down. This vertical movement causes the spring to The casters 3 roll on the protrusion 14 on the floor.

0012 FIG. 6 shows the state after the spring caster 3 has rolled on the convex portion 14 of the floor 13. has been done. The torsion coil spring 8 attached to the spring caster 3 The deflection has disappeared, and the positions of the leg portion 5 and roller portion 6 have returned to their original positions.

[0013] In FIG. 7, the spring casters 3 are installed on the floor 13 inside the housing 1 together with the drawer stand 2. It is shown being stored while rolling on top.

[0014] Referring to FIG. 8, the tension coil bar attached to the spring caster 3 The roller portion 6 moves up and down as the roller 10 expands and contracts. Due to this vertical movement The spring casters 3 roll on the protrusions 14 on the floor 13.

[0015] In FIG. 9, the spring caster 3 goes over the convex part 14 of the floor 13 and prevents it from rolling. It has returned to its original state. The tension coil spring 10 no longer bends, and the roller portion 6 has returned to its original position.

[0016]

[Effect of the idea]

According to the present invention, when the casters are pulled out from inside the device and roll on the floor, they protrude on the floor. Even if there is a part, the caster itself will adjust up and down due to the deflection of the torsion coil spring. Do the following. Therefore, the casters can roll smoothly on the floor.

[0017] Also, when the casters are stored inside the device, the tension coil springs will not expand or contract. However, since the casters themselves adjust up and down, they roll smoothly on the floor. be.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a configuration including an embodiment of the present invention.

FIG. 2 is an enlarged view of one embodiment of the present invention in FIG. 1;

FIG. 3 is a diagram illustrating an assembled state of an embodiment of the present invention and an internal structure thereof;

[Fig. 4] Fig. 2 shows a state in which the embodiment of the present invention is rolling on the floor.
FIG. 2 is a cross-sectional view taken along line AA' of

[Fig. 5] Fig. 2 shows another state in which the embodiment of the present invention is rolled on the floor.
FIG. 2 is a cross-sectional view taken along line AA' of

[Fig. 6] Fig. 2 shows another state in which the embodiment of the present invention is rolled on the floor.
FIG. 2 is a cross-sectional view taken along line AA' of

FIG. 7 is a side view of the embodiment of the present invention rolling on the floor;

FIG. 8 is a side view showing another state in which the embodiment of the present invention rolls on the floor;

FIG. 9 is a side view showing another state in which the embodiment of the present invention rolls on the floor;

FIG. 10 is a perspective view showing an example of conventional casters.

[Explanation of symbols]

1 Equipment 2 Drawer stand 3 Spring casters 4 Fixing bracket 5 Legs 6,16 Roller part 7 large shaft 8 Torsion coil spring 9 Small shaft 10 Tension coil spring 13 floor 14 Convex part 15 Fixing metal fittings 17 pin

Claims (1)

[Scope of utility model registration request] 1. A roller for rolling on a floor, a tension coil spring having one end attached to a roller shaft for moving the roller up and down, and a leg for attaching the roller shaft to enable rotation of the roller. , a fixing fitting for attaching the leg to the device, and a screw coil spring for attaching the connection point so that the leg can rotate around the connection point between the fixing fitting and the leg. Features spring casters.