JPH0226485B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connecting chair installed in a theater or the like, and more specifically, the present invention relates to a connecting chair that is installed in a theater or the like, and more specifically, a connecting base that connects each part of the connecting chair, including the seat, backrest, and legs, and the connecting frame that connects the chairs to each other. This invention relates to a connecting chair that can be assembled centrally, simply and firmly.

Normally, the components of connected chairs installed in theaters, etc., such as seats, backrests, and legs, are assembled and molded individually in a factory, and then these are brought to the site and the entire assembly work is done on site. It's normal.

In this case, the chairs must be assembled in a narrow space with a predetermined distance between the chairs, and the installation work is done when the theater or other building is completed, so it can be assembled easily and quickly. is requested.

The present invention relates to a connecting chair that has been researched and developed based on such demands, and it facilitates the installation of the seat and backrest around the connecting base, and also connects the chairs together in conjunction with the installation of the backrest. While the connecting frames are fixed together to obtain a solid connection, the legs can also be easily connected to the connecting base so that they can be maintained at a desired height either directly or through the connecting frame. The purpose of the present invention is to provide an improved articulated chair.

Hereinafter, embodiments illustrating the present invention will be described in detail. Fig. 1 is an exploded perspective view of a connecting chair according to the present invention, and Fig. 2 is an enlarged longitudinal sectional side view of the main parts in a completed assembled state. In the drawing, code 1 is the seat;
2 is a backrest, 3 is a leg, 4 is a connecting frame that connects the chairs, and 5 is a connecting base that connects these seats, backrests, legs, and connecting frames to each other.

Here, the connecting base 5 is constructed in a box shape centering around two metal plates 5a formed in the same shape on the left and right sides,
By making a U-shaped cut from the rear in these two metal plates, a connecting receiving part 6 that opens rearward is provided, and an arm is further extended to the top of each front edge of the two metal plates, and an arm is provided between the two metal plates. A bearing arm 8 is provided by extending a bearing portion 7 having a U-shaped cross section.

The backrest 2 has a metal connecting plate 1 attached to its core plate 9.
0, and a box-shaped mounting member 11 is fixed to a portion protruding from the lower end of the backrest main body portion.

The mounting member 11 connects the backrest body to the connection base 5.
The front plate part 12 has upper and lower plate parts 1 that sandwich the opening of the receiving part 6 of the connecting base 5.
Screw holes 17 and downwardly opened notch engaging portions 18 are provided in correspondence with the through holes 15 and the head-attached connecting studs 16 provided in the studs 3 and 14, respectively.

On the other hand, the seat 1 has a cushion portion 20 provided on the upper surface of a rectangular frame 19, and constitutes a seat body.
A rotating shaft 21 is passed between the left and right frames, and a cover 22 is attached to the lower surface of the frame 19 so as to cover this rotating shaft.

The leg 3 stands up by integrally welding a shoe 24 to the lower end of the footnote 23, and has a connecting bolt 25 implanted in the upper end surface.

The connecting bolt 25 stands up corresponding to a through hole 26 previously opened on the lower surface of the connecting base 5, and is assembled to the base 5 by tightening a nut 27 after passing through the through hole. It will be done.

Note that the legs 3 do not need to be attached to all the connection bases 5, but may be attached to at least two of the plurality of connection bases assembled to one connection frame 4, as described later. Bye.

Seat 1, backrest 2, legs 3 and connection base 5 described above
are manufactured individually as finished products in a factory and then brought to the installation site.

The work at the site is to determine the mounting position of the legs 3 in accordance with the anchor bolts that have been installed in advance on the floor. Complete the attached connecting base. This work is performed using the bolt 25 inserted into the through hole 26.
The purpose is simply to tighten the nut 27, and in this embodiment, this is done through the opening of the connection receiving portion 6 of the connection base.

When the connecting base with legs is completed in this way, the leg shoe 24 is attached to each anchor bolt.
After screwing and fixing, the connecting frame 4 is fitted into the receiving part 6 from behind the connecting base 5 installed at an interval and passed horizontally, and then the mounting member for the backrest is attached to the back of the connecting base. 11, and at the same time fix the connecting frame fitted into the receiving part.

To assemble the mounting member 11, connect the notch engaging portion 18 provided on the front plate portion 12 to the connecting stud 16 of the base body 5.
This is done by fitting and engaging the screws 28 from above from above, and then, once the screws 28 are positioned through the holes 15 of the base 5, screwed into the screw holes 17 of the front plate 12. By tightening 28, the backrest 2 is attached to the connecting base 5, and the connecting frame 4 fitted into the connecting receiver 6 is fixed, and is passed between the connecting bases and other connecting bases arranged side by side.

After attaching the backrest in this way, the rotating shaft 21 of the seat 1 is faced from above the bearing arm 8 that projects forward.
The seat is attached by being fitted and supported by the horizontally installed bearing frame 7. In order to stabilize the rotating shaft 21, it is preferable to insert screws into the side surface of the bearing frame 7 to fix the rotating shaft.

The connecting chair of the present invention is assembled as described above, and the connecting base 5 with the legs 3 is placed, for example, at both ends of the long connecting frame 4, and the connecting base without the legs 3 is placed between these chairs. 5 is fixed by assembling the mounting member 11 of the backrest as described above, and by further assembling the seat 1, each chair can be completed as an independent chair. Legs 3 are provided only for chairs that are connected together via a connecting frame 4 and arranged at a required interval.

Next, reference numeral 29 shown in the figure is an arm frame placed on the side of the chair to be assembled, 30 is a fixture for fixing this elbow frame to the connecting frame 4, and 31 is a cover that covers this fixture. It is.

The elbow frame 29 is integrally equipped with a U-shaped mounting part 32 on the lower end surface of the main body, and the fitting part 33 provided on this mounting part is fitted so as to face from behind the connecting frame 4, and then the frame is fitted. It can be mounted by attaching a fixing metal fitting 30 to the front surface of the mounting part from the front and screwing in screws 34, and then a cover 31 is attached to the fixing metal fitting 30 from below to enclose it.

Figures 3 and 4 show the state in which this elbow frame 29 is attached to the connecting frame 4. By screwing the fixing bracket 30 to the front surface of the mounting part 32, the elbow frame 29 is moved above the connecting frame. It will be fixed in an upright position.

In the illustrated embodiment, in order to simplify assembly, the fixture 30 has flanges 30a extending outward at right angles from both edges of a metal material having a U-shaped cross section, and covers the flanges from both edges. The cover can be attached by fitting it into a fitting groove 31a provided on the inner surface of the armrest 31, and by inserting a screw 36 into a piece 35 hanging from the lower surface of the armrest frame from the front of the cover.

This arm frame 29 is attached to both ends of the connecting frame and between the chairs assembled on this connecting frame, but since it is independent of the connecting base 5, it can be selectively attached to the connecting frame as necessary. Needless to say, it can be installed on.

The connecting chair of the present invention is constructed as described above, and in assembly work in a limited narrow space at an installation site such as a theater, the connecting base 5 with legs is first fixed at a predetermined position, and then the connecting The work of fitting the connection frame into the connection receiving part 6 of the base body, and the process of fitting the connection stud 1 protruding from the back side of the connection base body 5.
6 and the engaging part 18 of the mounting member 11, and screw the screw 28 into the screw hole 17 of the mounting member through the through hole 15 of the connecting base to assemble the backrest 2. Next, the bearing arm of the connecting base is assembled. The rotating shaft 21 of the seat is mounted on the bearing frame 7 of 8.
Since the assembly can be completed by fitting and assembling the parts, it has the advantage of being extremely quick and easy to assemble.

In particular, the connecting chair of the present invention is capable of assembling the connecting base 5, the backrest 2, and the connecting frame 4 by tightening one or two screws 28, and
It is a great advantage to be able to tighten the screws from the exposed front surface of the connecting base as shown in the figure, making it even more convenient to work in narrow spaces.

In addition, since the connecting chair of the present invention allows the combination of the connecting base and the legs to be freely selected, there is no need to prepare multiple types of connecting bases, which is convenient for management, and the connecting chair of the present invention By selecting the length of the frame, the number of seats can be changed arbitrarily, and in this case, as mentioned above, the legs can be connected and arranged at the necessary intervals, so it is a highly stable chair with excellent ventilation. can be provided.

In the illustrated embodiment, the connecting frame is made of square pipe material with a square cross section in order to improve stable connectivity with the connecting base, but non-perfectly round pipes other than perfectly circular,
The present invention can be carried out as long as it has a polygonal cross-section, and the connecting receiving portion of the connecting base is formed in a shape that matches the cross-sectional shape of the connecting frame.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
The figure is a perspective view of the disassembled state, Fig. 2 is an enlarged longitudinal sectional side view of the main parts in the assembled state, Fig. 3 is an enlarged central longitudinal sectional side view showing the assembled state of the elbow frame to the connecting frame, and Fig. 4 is the upper view. - line sectional view. DESCRIPTION OF SYMBOLS 1... Seat, 2... Backrest, 3... Legs, 4... Connection frame, 5... Connection base, 6... Connection receiving part, 7
... Bearing part, 8 ... Bearing arm, 11 ... Mounting member,
21...Rotation axis.

Claims (1)

[Claims] 1. A long connecting frame, a connecting base including a connecting receiving part that opens rearward to receive the connecting frame, and a bearing arm having a bearing part that supports the rotating shaft of the seat, and a connecting base that hangs down from the lower end of the backrest and extends from the front side. and a mounting member that is screwed in contact with the back surface of the connecting base to confine and fix the connecting frame to the connecting receiver, and the connecting base is supported at a predetermined height position with legs connectable to the lower surface thereof. A connecting chair that looks like this.