JPH0240827Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a caster device installed at the bottom of heavy furniture such as western dancers and steel furniture.

In recent years, furniture has become more luxurious, and the wood used for it has been changing from cheap plywood to expensive single-panel wood, and as a result, the weight of the furniture itself has also become heavier. . For this reason, special care is taken when bringing in and moving expensive furniture, and several licensed workers carefully move it. Furthermore, when changing the layout of a room, the clothes inside are extremely heavy and cannot be moved as they are, so the current situation is that the clothes inside must be taken out and moved.

However, even a simple change in the appearance of a room, when the furniture was as large as a Western dancer, was difficult to move by one person and required the help of family members. Even in this case, there was a risk of damaging the floor or damaging the furniture.

For this reason, one idea is to put casters under the furniture to make it easier to move, but furniture with casters is dangerous because it can start moving on its own in the event of an earthquake, for example. For this reason, the applicant first devised casters that can be moved up and down, and succeeded in attaching them to furniture, thereby making it easier to move large furniture in and out. Since the casters move in and out vertically, they require a considerable amount of support from a mechanical standpoint, and for large, heavy furniture, the caster device must be large and robust. Ta.

The present invention improves on this point, and makes it possible to move the casters in and out with less force by moving the casters diagonally along the inclined rail.

To explain the present invention with reference to the accompanying drawings, Figure 1 A and B show the overall view of Furniture B with the casters stored, and Figure 2 A and B show the furniture B with the casters taken out.
This shows an overall view of the movable A
shows the caster device of the present invention. FIG. 3 shows a longitudinal cross-sectional view of this caster device A, but the central portion is omitted due to the length required. Also, Fig. 4 is a plan view of Fig. 3, and Fig. 5 is a plan view of Fig. 4
-X sectional view is shown.

As is clear from the figure, the caster device of the present invention is provided with caster devices symmetrically,
This is interlocked by a rotating threaded rod 1, and this threaded rod 1 has screw threads 2 and 3 carved in reverse threads, so the caster 10,
The actuation of 10 also moves symmetrically.

In the figure, 1 is a threaded rod, and this threaded rod 1
are inserted into the front and back of the lower frame of furniture B, and a handle receiver 12 is installed on the front side of furniture B, and one end of the threaded rod 1 is exposed in this handle receiver 12. At the front and rear of the threaded rod 1 (shown as left and right in FIGS. 3 and 4), threads are formed in reverse threads 2 and 3. Slide rails 4 and 5 are provided symmetrically and inclined on the left and right threaded threads 2 and 3, respectively, and casters 10 are movably provided on each threaded rod 1 and slide rail. The structure of the caster 10, threaded rod 1, and slide rail will be explained in detail with reference to FIG. The caster 10 is rotatably attached to a caster base 6 by a caster case 9, and a slide screw 8 is fixed to one side of the caster base 6, and the slide screw 8 is screwed into the thread of the threaded rod 1. ing. Further, an engagement piece 11 is provided on the other side of the caster stand 6,
This engaging piece 11 is engaged with a slide rail 5 (since the caster device is bilaterally symmetrical, only one will be explained for convenience) via a ball bearing 7.

Therefore, to explain the operation of the caster device of the present invention, when the removable handle 13 is attached to the handle receiver 12 and the handle 13 is rotated, the threaded rod 1 is rotated thereby and is screwed into the threaded rod 1. The slide screw 8 that is being moved moves. This screw 8
As a result of this movement, the caster stand 6 on which the casters 10 are attached moves along the slide rail 5. As shown in the figure, the slide rails 4 and 5 are symmetrically inclined and provided, and the screw threads 2 and 3 carved on the threaded rod 1 are also reverse threaded, so The slide screw 8 screwed into the caster 1 moves in the opposite direction to the left and right.
0 simultaneously move from the high position of the slope of the slide rails 4 and 5 to the low position, and therefore, when the caster 10 is at the high position of the slide rails 4 and 5, it fits within the underframe of furniture B and slides. When moved to a lower position on the rail, the casters 10 become casters 10' and protrude from the underframe as shown by dotted lines in the figure, and the furniture B becomes movable.

As mentioned above, the caster device of the present invention
The casters move diagonally into and out of the furniture underframe by rotating a threaded rod inserted through the underframe of the furniture, making it possible to move large, heavy furniture up and down with a small amount of force. , You can move items even if they are inside the furniture, and if you take out the casters and fix them to the floor after moving, it will be safe even in the event of an earthquake, and when moving furniture, etc. It has extremely convenient practical effects.

[Brief explanation of the drawing]

1A and 2B and 2A and 2B show examples of the caster device of the present invention, FIG. 3 is a longitudinal sectional view of the device of the present invention, and FIG. 4 is a plan view thereof. FIG. 5 shows a partially detailed sectional view. 1... Threaded rod, 4, 5... Slide rail, 8
...Slide screw, 10...Castor.

Claims (1)

[Scope of utility model registration request] A threaded rod 1 is inserted from front to back on both sides of the lower underframe of furniture B, and a thread is carved in the front 2 and rear 3 of the threaded rod 1 so as to form a reverse thread, and the threaded portions at the front and rear are carved. The slide rails 4 and 5 are provided in an inclined manner along the
are engaged through the ball bearings 7, and a slide screw 8 is fixed to the side of the caster stand 6, and the screw 8 is screwed into the threaded rods 4, 5, so that the slide rails 4, of the caster stand 6 are engaged. This furniture caster device is characterized in that casters 10 are attached to the lower part of each of the furniture wheels 5 via caster holders 9.