JPS6233887B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a traveling device for a movable shelf.

Recently, movable shelves in which the shelves can run along rails have come into wide use in order to make effective use of space. This movable shelf is moved by a pair of wheels rolling on each of the two rails, but it is inevitable that each rail will have unevenness in the length direction, so there are four One of the wheels is not in contact with the rail, which hinders smooth running.

This invention has been made to solve these conventional drawbacks, and provides a device that allows four wheels to reliably contact the rail and run smoothly even when the rail is uneven. It is something.
That is, the present invention provides a movable shelf that runs on two rails, each of which has a pair of wheels that roll on each rail, and one of the pair of wheels is rotatable by a single bearing member. The bearing member is rotatably attached to the main body by a single shaft in the same direction as the wheel axis at a position intermediate between the two wheels.

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the movable shelf 1 has a pair of wheels 4, 5 and 41, 51 on both sides, and when these wheels roll on the rails 2, 3,
is configured to move along the These wheels are mounted as shown in Figures 2-4. That is, the wheels 41 and 51 rolling on one rail 3 are connected to the shafts 4 attached to a pair of opposing reinforcing members 11 and 11 fixed to the movable shelf main body 10.
It is held around 4. The wheels 4 and 5 also have a pair of bearing members 6 disposed opposite to each other on both sides thereof.
The bearing member 6 is rotatably held around shafts 40, 40 attached to both ends of the wheels 4 and 5.
It is rotatably held around a shaft 7 attached to reinforcing members 11, 11 at an intermediate position between the two.

In the above configuration, the load of the movable shelf 1 is transferred from the reinforcing member 11 to the wheels 41 and 5 through the shaft 44 on the rail 3 side.
1, and on the rail 2 side, it is transmitted from the reinforcing member 11 to the wheels 4 and 5 through the shaft 7 and bearing member 6. That is, on one side, the load is distributed and transmitted directly from the main body to the wheels 41, 51, but on the other side, the load is concentrated and transmitted to the shaft 7 of the bearing member 6 having the wheels 4, 5, and therefore the load is transmitted directly from the main body to the wheels 41, 51. The shelf 1 is supported at three points. Therefore, if unevenness occurs in the longitudinal direction of the rail 3 while the movable shelf 1 is running, the movable shelf 1 will be tilted accordingly, and the load will be distributed almost equally on both wheels 41, 51. As a result, both wheels always maintain contact with the rail 3. At this time, if the other side has a pair of wheels attached directly to the main body, one of the wheels will be attached to the rail 2.
However, in the above configuration, the load is on the shaft 7.
Since the load is distributed to both wheels 4 and 5 through the bearing member 6, an equal load is applied to the wheels 4 and 5 regardless of the inclination of the movable shelf 1, and therefore it will not float off the rail 2. do not have. Also rail 2
Even when there is an uneven surface, the rotation of the reinforcing member 6 around the axis 7 applies an equal load to the wheels 4 and 5, bringing both wheels 4 and 5 into contact with the rail 2, and moving the movable shelf 1. does not cause any inclination, so the four wheels will not float.

In the above embodiment, an example is shown in which the movable shelf 1 is moved in the depth direction, but it may be configured to be moved in a direction perpendicular to this. In that case, similar effects can be achieved by holding the wheels 4 and 41 with a single bearing member. In order to improve the stability of the movable shelf 1 during movement, a guide may be provided at an appropriate position such as the top surface of the shelf body to prevent it from tipping over, or the guide may be composed of rails and wheels. .

As explained above, the present invention supports a pair of wheels on one side of a movable shelf with a single bearing member, and supports the shelf body at three points by holding this bearing member with a single support shaft. This is how it was done. For this reason, the four wheels are always in four wheels regardless of the unevenness of the rail.
It supports an equal load, which allows the shelf to move smoothly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the invention, Fig. 2 is a perspective view showing an embodiment of the invention;
The figure is a sectional view taken along the - line, and Figure 3 is the - line sectional view of Figure 2.
FIG. 4 is a cross-sectional view taken along the - line in FIG. 3. 1...Moving shelf, 2,3...Rail, 4,5,4
1,51...Wheel, 6...Bearing member, 7,40...
…shaft.

Claims (1)

[Claims] 1 In a movable shelf that runs on two rails,
Each has a pair of wheels that roll on each rail,
Either one of the pair of wheels is rotatably held by a pair of bearing members placed opposite each other on both sides, and this bearing member is held at a position midway between the two wheels in a single direction in the same direction as the axis of the wheel. A traveling device for a movable shelf, characterized in that it is attached to a main body rotatably about one axis.