JPS6017525Y2 - coupling device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a connecting device used when connecting members are brought into contact with each other and spread out, or when the members are folded and stored.

For example, a large table for a dining room can be made by bending a plate.This is done by dividing a rectangular plate into multiple pieces, and then joining these plates by butting them together. It is connected so that it can be folded and stored.

When in use, the two plates are brought together and widened, and when not in use and carried, one of the plates is folded so that it can be stored compactly.

However, if the two plates are simply connected with a hinge, it is necessary to support one of the plates when it is expanded, which requires a separate support member, which complicates the structure and makes operation difficult. There is.

This idea was made to improve the above situation.
The purpose of this is to be able to reliably connect the connected members in a state where they can be joined and folded, to have a relatively simple configuration, and to eliminate the need for supporting members when the connected members are joined and expanded. Therefore, it is an object of the present invention to provide a connecting device that can be manufactured easily and inexpensively.

This invention will be explained in detail below with reference to embodiments shown in FIGS. 1 to 6.

In the figure, reference numeral 1 denotes two rectangular plates (members to be connected), and both ends of the plates 1 are joined and bendably connected, and these will be explained in sequence.

Mounting plates 2 are fixed near the joint ends of both sides of the disc body 1, and the outer periphery of a small-diameter annular portion 4 is formed on both sides of the rotary operating body 3, which has serrations on the outer periphery. The surfaces thereof are rotatably supported in support holes 6 of both bearing plates 5 which are fixed to the mounting plate 2 at a distance and opposite to each other, and both rotary operating bodies 3 have screw holes 7 facing in opposite directions. They are shaped like each other along the same axis.

Reference numeral 8 denotes a connecting rod, and this connecting rod 8 is divided at its center, and the concave and convex portions formed in these divided portions are foldably engaged with each other, and a pin 9 is inserted into the engaging portion. Since it is bent in one direction by 90 degrees.

Furthermore, both threaded portions 10 are formed in opposite directions on the outer circumferential portions of both sides of the connecting rod 8, and these threaded portions 10 are connected to the outer circumferential portions of both sides of the connecting rod 8.
Screw hole 1 of circumferential rotation operating body 3 pivotally supported at each end of plate body 1
Insert the screws into each.

Further, a key groove 11 is formed along the axial direction on the outer periphery of the lower part of the connecting rod 8, and the upper part of the key 12 fixed to the outer bearing plate 5 is engaged with the key groove 11, so that the connecting rod 8 can be moved in the axial direction along the keyway 11, but cannot be rotated.In addition, in this state, the bending direction of the central part of the connecting rod 8 should be in the downward direction in FIG. It is set.

To explain the operation of the device configured as above,
First, when using both plate bodies 1 in an expanded state, both plate bodies 1 are kept in a mutually expanded state and the rotary operation body 3 is rotated in one direction.

Then, the connecting rod 8 screwed into the rotary operating body 3 and engaged with the key moves in the axial direction toward the shaft end, so that both the plates 1 move toward each other and further rotate. Then, as shown in FIG. 1, the two plates 1 are brought into contact with each other and joined, so that the two plates 1 can be integrally connected in an expanded state.

Next, when folding and storing the expanded plate bodies 1, the rotary operating body 3 is rotated in the other direction.

Then, the connecting rod 8 moves in the opposite direction along the axial direction, and as shown in FIG. When one plate body 1 is swung downward after being moved to the
The central part of the connecting rod 8 is bent with the pin 9 as a fulcrum. As shown in FIG. Can be folded and stored compactly.

In this way, by simply rotating the rotary operating body 1, both plates 1 can be joined and expanded, or folded and stored, and no special supporting member is required when they are joined and expanded. , very convenient.

In the above-mentioned embodiment, the case of bending at 90 degrees was described, but the embodiment shown in FIGS. 7 and 8 will be described for the case of bending at 180 degrees for storage.

An intermediate rod 1 is interposed in the middle of a connecting rod 8 whose both side parts are screwed together with both rotary operating bodies 3 bearing on each side end of both plate bodies 1, and both ends of this intermediate rod 13 are connected. Both ends of the divided connecting rod 8 and both pins 9 are connected so that they can be bent 90 degrees in the same direction.

When the two plates 1 are to be joined and expanded for use, the rotary operation body 3 is rotated in one direction in the same manner as described above, and the connecting rod 8,
The intermediate rod 13 is linear and serves to bring the two plates 1 closer together and join them.

Moreover, when the rotary operation body 3 is rotated in the opposite direction when bending the plate body 1, both the plate bodies 1 are separated from each other with the intermediate rod 13 as the center.

Then, after separating by a predetermined amount, one of the plates 1 is swung downward and further swung toward the lower surface side of the other plate 1, so that the intermediate rod interposed in the middle part of the connecting rod 8 Since the plate 13 can be bent 90 degrees at two places on both sides of the plate 13, one plate 1 is bent 180 degrees and the weight is folded under the other plate 1, as shown in Figure 8. It will be stored away.

By removing the connecting rod 8 from the rotary operating body 3, the disc body 1 can be completely separated.

As described in detail above, this invention is based on the fact that when the rotary operating body is rotated in one direction, the connected members butt against each other and are joined, so that they can be expanded and used as one unit, and the rotary operating body can be rotated in the other direction. and the member to be connected can be reliably connected in a bondable and bendable state.

In addition, since the members to be connected are butted and joined, there is no need for these supporting members when expanded, so the configuration is relatively simple and operation is easy, especially for large folding tables. It can be used very effectively as a connecting device.

[Brief explanation of the drawing]

1 to 3 are perspective views illustrating the state of use of an embodiment of this invention, and FIG. 4 is an enlarged perspective view of the main parts on the same side.
Figure 5 is a vertical cross-sectional view of Figure 4, and Figure 6 is VI-V of Figure 5.
A sectional view taken along line I, and FIGS. 7 and 8 are perspective views illustrating other embodiments of this invention in use. 1... Disk body (member to be connected), 2...
Mounting plate, 3... Rotating operation body, 4... Annular part, 5... Bearing plate, 6... Support hole,
7...Screw hole, 8...Connecting rod, 9...
...Pin, 10...Thread part, 11...
...Keyway, 12...Key, 13...
middle bar.

Claims (1)

[Scope of utility model registration request] A rotary operating body is rotatably attached to each end of the connected member, a screw hole is formed in the circumferential rotary operating body, and a screw portion is formed on the outer periphery of both sides of a connecting rod whose central portion is bendable. Then, when both threaded portions of this connecting rod are screwed into the screw holes of the circumferentially rotating operating body and the rotating operating body is rotated in one direction, the connected members approach each other and are joined, and the rotating operating body A connecting device characterized in that when the members are rotated in the other direction, the connected members can be bent after being separated from each other.