JPS6239738Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a connecting device that makes it possible to connect or separate a desired number of chairs with their sides touching each other.

Generally, as shown in FIG. 1, individual chairs are connected by a connecting device to form a chaise longue of a desired length. An example of the connecting device is shown in FIG. As shown in FIG. 2, an engaging body B with a flat elongated raised edge 2 is pivotally attached to the bottom part 1 of one of the chairs A, and the engaging body B is rotatably mounted on a shaft 3.
A number of engagement holes 4 are drilled in the longitudinal direction of the locking body C, and a guide raised edge 5 is fixed to the bottom surface 1' of the other chair A' with the guide raised edge 5 facing sideways. A locking protrusion 6 is provided to protrude downward so as to be able to engage with the engaging hole 4 of the engaging body B, and when connecting the chairs A and A', the chairs A and A' must be brought close together. Insert the engaging body B into the locking body C, and open the engaging hole 4 of the engaging body B.
The locking protrusion 6 of the locking body C is engaged with the chair A,
To separate A', the locking protrusion 6 of the locking body C is released from the locking hole 4 of the locking body B, and the locking body B is pulled out from the locking body C to separate the chairs A and A'. Coupling devices are known which are designed to allow this. However, when such a connecting device is used, the engagement between the engaging hole 4 of the engaging body B and the locking protrusion 6 of the locking body C in the connected chairs A, A' is unexpectedly caused in the vertical direction during use. It is not stable against shocks and vibrations, and if active children who like to exercise move around on the chair, the chair may fall off due to vertical shocks or vibrations, causing the chair to fall over and cause injury. It was hot.

In view of the current situation, the present invention has been developed such that the other end of the connecting insertion rod, whose rear end is rotatably attached to the bottom of one chair, is arranged in a direction perpendicular to the axis of the insertion rod. The other chair is provided with a stopper that is biased to protrude at all times, and a main cylindrical body for forming a locking body for inserting the connecting insertion rod, and a stopper that is longer than the main cylindrical body and is provided on the bottom of the other chair. , which is fitted into the main cylindrical body to form a hole for insertion of a coupling insertion rod, and is fixed to the bottom of the other chair on the protruding portions from the openings at both ends of the main cylindrical body. an insertion rod of an insertion rod insertion and locking body, which comprises an insertion rod locking portion and an attachment fixing plate with an insertion rod locking portion having a recess for insertion or a hole for insertion of the stopper formed between both end openings; By facing the insertion hole to the side and fixing it with the mounting plate with the insertion rod locking part, when connecting the chairs, the separation is completely stable against unexpected shocks and vibrations in the vertical direction. Moreover, when separating the chairs, it is possible to easily separate the chairs by moving the chairs in a limited predetermined direction in which the connecting insertion rod can be released from the insertion rod locking body. The present invention will be described in detail below based on the embodiments shown in FIGS. 3 and onwards.

In the figure, reference numeral 7 denotes a connecting device attached to the bottoms 8, 8' of adjacent chairs A, A', and the connecting device 7 is a connecting device attached to the bottom 8' of one of the adjacent chairs A'. It consists of an insertion rod 9 for use and a connecting insertion rod insertion locking body 10 attached to the bottom part 8 of the other chair A.

The connecting insertion rod 9 has a through hole 11 for screw insertion at one end thereof, and is rotatably attached to the bottom surface 8' of the chair A' with a screw 12 via a washer 13, a washer 14, etc. The other end is provided with a stopper 15 that is always biased to protrude in a direction perpendicular to its axis.
In the figure, the stopper 15 consists of a locking ball 16 and a coil spring 17, and is connected to a connecting insertion rod 9.
A part of the locking ball 16 fitted into the hole 18 provided in the hole 18 normally comes out from the tapered opening 19 of the hole 18 due to the biasing force of the coil spring 17, and the locking ball 16 is inserted into the hole 18 by an external force.
It's like it's being pushed inside. Further, the coil spring 17 can be adjusted using a screw 20. The free end 21 of the connecting insertion rod 9 is tapered, so that it can be easily inserted into the connecting insertion rod insertion hole 22 of the connecting insertion rod insertion locking body 10.

Further, the connecting insertion rod fitting insertion locking body 10 is composed of a main cylinder body 23 for forming the connecting insertion rod insertion locking body and an attachment fixing plate 24 with an insertion rod locking part. The fixing plate 24 is longer than the main cylindrical body 23 and is fitted into the main cylindrical body 23 to form the connecting insertion rod insertion hole 22, and also has a protruding portion from the openings at both ends of the main cylindrical body 23. has a hole 2 for fixing it to the bottom part 8 of chair A.
5 is opened and can be fixed with screws 26, 26', and the stopper 15 is provided between the openings at both ends.
A recessed portion or hole 27 for fitting the locking ball 16 is formed.

As shown in FIG. 3, when connecting chairs A and A', the connecting insertion rod 9 attached to the bottom surface 8' of chair A' is inserted into the connecting insertion rod 9 attached to the bottom surface 8 of chair A. Insert the connecting insertion rod 9 into the insertion hole 22 of the insertion and locking body 10, and insert the stopper 15 of the connection insertion rod 9 into the insertion recess or insertion hole 27 of the attachment fixing plate 24 with the insertion rod locking part. engage. By appropriately selecting the engagement position between the stopper 15 and the fitting recess or fitting hole 27, the distance between the chairs A and A' can be set to a desired distance. In this way, since the connecting insertion rod 9 is inserted into the connecting insertion rod insertion hole 22 of the connecting insertion rod insertion locking body 10, unexpected shocks that inevitably have a movement component in the vertical direction, It is completely stable against vibrations, and the connected chairs A and A' will not be separated by unexpected shocks or vibrations.

Next, when separating the connected chairs A and A', the connecting insertion rod 9 attached to the bottom surface 8' of chair A' is released from the connecting insertion rod insertion locking body 10. When the chair A or A' is moved in the direction in which the connecting rod 9 is moved, the stopper 15 of the connecting insertion rod 9 is disengaged from the insertion recess or the insertion hole 27 of the connecting insertion rod fitting insertion locking body 10, and the chairs A, A' is separated. Incidentally, unexpected shocks and vibrations are not applied only in the direction where the chairs A and A' can be separated. Furthermore, in the separated chair A', the connecting insertion rod 9 can be rotated and stored under the bottom part 8' of the chair A'. At this time, a spring may be used so that the connecting insertion rod 9 is normally stored under the bottom portion 8' of the chair A'.

As is clear from the above description, the chair connection device according to the present invention includes a connection insertion rod whose rear end is rotatably pivoted to the bottom of one chair, and a tip of the insertion rod. The part is provided with a retractable stopper that is always biased to protrude, and is fixed to the bottom part of the other chair, and is used for inserting a connecting insertion rod into which the insertion rod can be inserted. One chair and the other chair are composed of a hole and a coupling insertion rod insertion locking body that can be provided with a recess for insertion or a hole for insertion into which the stopper can be attached and detached. At the same time, regardless of the distance, separation of the connected chairs due to unexpected vertical shocks and vibrations, which were disadvantages of the conventional method, does not occur, and the connected chairs can be freely set. Not only is there no danger at all even if children get confused on the connected chairs, but the connecting and separating operations of the chairs are easy, and when the chairs are separated, the connecting insertion rod can be attached to the bottom of the chair. In addition to being extremely easy to process and mold, especially when forming the connecting insertion rod insertion locking body, the main cylinder body can be made of a thin-walled ready-made product. In addition, it is possible to achieve excellent practical effects such as being able to provide a device for connecting chairs of this type at a low cost.

[Brief explanation of the drawing]

1 and 2 show a conventional chair connecting device, FIG. 1 is an explanatory diagram showing its state, FIG. 2 is a bottom view thereof, and FIGS. 3 to 7 are An example of the chair connection device according to the present invention is shown, and FIG. 3 is a vertical sectional view of the main part, FIG. 4 is a partially cutaway front view of the insertion rod locking body, and FIG. 5 is a side view thereof. , FIG. 6 is a partially cutaway front view of the connecting insertion rod, and FIG. 7 is a side view thereof. A, A': Chair, 7: Connection device, 8, 8': Bottom part, 9: Connection insertion rod, 10: Connection insertion rod insertion locking body, 11: Through hole for screw insertion, 12, 20,
26, 26': Screw, 13: Washer, 14:
Washer, 15: Stopper, 16: Locking ball, 17:
Coil spring, 18: hole, 19: tapered opening, 2
1: Free end, 22: Connection insertion rod insertion hole, 2
3: Main cylindrical body, 24: Mounting fixing plate with insertion rod locking part, 25: Fitting recess or fitting hole.

Claims (1)

[Scope of utility model registration request] A stopper is attached to the tip of the coupling insertion rod, which is rotatably attached to the bottom of one of the chairs at its rear end, so as to always protrude in a direction perpendicular to the axis of the insertion rod. On the other hand, the bottom part of the other chair is provided with a main cylindrical body for forming the connecting insertion rod insertion and locking body, and a main cylindrical body that is longer than the main cylindrical body and is inserted into the main cylindrical body for connection. In addition to forming a hole for inserting an insertion rod into the main cylinder, the projecting portions from the openings at both ends of the main cylinder are provided with portions for attaching and fixing to the bottom surface of the other chair, and the openings at both ends The insertion rod insertion hole of the insertion rod insertion locking body is composed of a mounting fixing plate with an insertion rod locking part in which a recess for insertion of the stopper or a hole for insertion is formed in between. A device for connecting a chair, characterized in that the device is fixed with an attachment fixing plate having an insertion rod locking part.