JP2912568B2 - Theater hall chairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a theater hall chair used in a theater or a music hall.

[0002]

2. Description of the Related Art Conventionally, as a chair for a theater hall, for example, there has been proposed a connecting chair of a type in which a seat jumps up as shown in Japanese Patent Publication No. 2-26485. Such a chair is well-known as a standing-type chair provided with a flip-up mechanism as shown in Japanese Utility Model Laid-Open No. 6-52610. An example of such a standing chair is a theater chair 8
0a and 80b are shown in FIG. FIG. 6A shows a theater chair 8.
FIG. 6B is a right side view of FIG. The theater chairs 80a and 80b show only two of a large number of connecting chairs arranged in the horizontal direction, and similar connecting chairs are also arranged in parallel in the front-rear direction.

[0003] Theater chairs 80a and 80b are composed of a support 85 erected on the theater floor and a backrest 87 fixed to the support 85.
a, 87b, and elbow frames 89a, 89b, 89c fixed so as to sandwich the backrests 87a, 87b from left and right,
Seats 91a and 91b. And the seat 91a,
91b is rotatably supported by the elbow frames 89a to 89c about the point O as a rotation axis, and is configured to jump up like an 91b when the user leaves the seat by an urging mechanism (not shown). At the time of sitting, the seat is lowered with the seat being substantially horizontal like the seat 91a.

[0004] Such a stand-up theater chair 80
According to a and 80b, when a person walks right and left in front of the chair, the seat is flipped up like a 91b, and when the person is seated, the seat is lowered like a 91a. More chairs can be placed on the floor area.

[0005]

However, according to the theater chairs 80a and 80b, the sound absorption characteristics differ between when a person sits down and when a person leaves. That is,
In the theater chair 80a, the seat 91a jumps up like the seat 91b when leaving the seat, and the back surface of the seat faces forward, while the human body faces forward when seated. The back side of the seat is usually made of sheet metal, etc., which is almost flat and reflects sound well, whereas the human body has a complicated shape and clothing has sound absorbing properties, so the sound of theaters The effect varies with the number of spectators. For this reason, it is desirable to use a chair that is not affected by the number of audiences, especially for a chair used in a music hall.

When the seat jumps up like 91b,
Since there is only a small gap between the seat 91b and the backrest 87b, it is difficult to place the luggage on the seat, and even if an attempt is made to place the luggage under the seat, this is indicated by the oblique lines of the seat 91b in FIG. The wrapped part goes down, so only small luggage can be placed.

Further, the theater chairs 80a and 80b have 9 seats.
There are gaps behind and right and left of the seats 91a, 91b.
When rotating 91b, there is a possibility that the hem of clothing or the like may be caught in this gap. Also, small luggage may fall from this gap, and it is hard to pick up falling objects because the theater is generally dim.

[0008] In addition, the theater chair 80
Others such as a and 80b are supported at the end of the seat on the backrest side. In such a chair, the weight of the occupant concentrates on the supporting position, and a load is placed on the rotating mechanism and the seat configured at this position.

The present invention has been made in view of the above problems, and has a small difference in sound absorption characteristics between a seated state and a seated state.
Another object of the present invention is to provide a theater hall chair in which luggage can be easily placed on a seat.

[0010]

Means for Solving the Problems According to the first aspect of the present invention, which has been made to achieve the above object, a backrest, a seat,
In a chair for a theater hall comprising: the seat is divided into a front seat and a rear seat that is installed without a gap with respect to the backrest, and a front seat opposite to the backrest with respect to the rear seat, and further, A mounting portion extending forward from substantially both side surfaces of the rear seat, and one body on each rear side surface of the front seat;
Arm portions projecting rearward of the seat, and the respective arm portions
A tubular member protruding from surfaces facing each other,
Each of the tubular portions is fixed to the mounting portion from the side of the front seat.
Rotation, which is two substantially cylindrical members inserted one by one into the material
Part and two plate-like plates with a central angle of less than 180 °
A member protruding from the inner peripheral surface of each of the tubular members one by one.
And a stopper tip that is
The column has a shape that is cut in half by a plane along the axis.
A columnar member, and each of the tubular members together with each of the rotating parts.
When inserted, the stopper tip
At each of the two surfaces of the two substantially radial sectors
By abutting, a stopper that regulates the rotation angle of the front seat within a range from a position where the front seat is substantially flush with the rear seat to a position substantially perpendicular to the rear seat, The seating surface of the front seat, the seating surface of the rear seat, and the front surface of the backrest are made of a sound absorbing material.

The invention described in claim 2 is the first invention.
The chair for a theater hall according to the above, further comprising an urging portion for urging the front seat in the direction in which the front end of the front seat moves upward to rotate the front seat. .

[0012]

[0013]

[0014] According to a third aspect of the invention, the theater hall chair according to claim 2, the biasing portion is a torsion bar, fixed at both ends thereof to the respective said front seat and the rear seat It is characterized by having been done.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the chair for a theater hall according to the first aspect, the seat plate is divided into a front seat and a rear seat, and the rear seat is installed on the backrest without a gap. . At approximately both side surfaces of the rear seat, mounting portions are extended forward, and one body is provided on each rear side surface of the front seat.
Arms protruding rearward and their respective arms
A tubular member protruding from surfaces facing each other,
Fixed to the mounting part, one for each tubular member from the side of the front seat
A rotating part, which is two substantially cylindrical members inserted through each other,
Stopper tabs projecting one by one from the inner peripheral surface of each tubular member
And a stopper extending to each of the rotating parts.
I have. The stopper tip is a fan with a central angle of less than 180 °
Are two plate-shaped members, while the stopper is a circle
The column has a shape that is cut in half by a plane along the axis.
It is a columnar member. Stopper with the rotating part
Insert the stopper tip with the tubular member
And the cutting surface is formed at two radial portions of the stopper tip.
From the position where it abuts one of the surfaces
Around the rotating part until it touches the surface
be able to. In other words, this rotation angle is 180 °
Therefore, the value is obtained by subtracting the angle of the center angle of the stopper chip.
For example, if the central angle is 100 °, the rotation of the front seat
The moving angle is restricted to 180 ° -100 ° = 80 °. This
The stopper tip and the stopper regulate the front seat from a position substantially flush with the rear seat to a position substantially perpendicular to the rear seat. The seating surface of the front seat, the seating surface of the rear seat, and the front surface of the backrest are made of a sound-absorbing material. A substantially U-shaped space is created when viewed from the side, surrounded by the two seating surfaces and the front of the backrest.

Therefore, according to the first aspect of the present invention, when the front seat is raised to a position substantially perpendicular to the rear seat at the time of leaving the seat, a substantially U-shaped member surrounded by a sound absorbing member is provided. Since a space of the type is created, the sound is reflected and absorbed in this space, and a sound absorbing effect comparable to that of sitting can be obtained. Note that the maximum rotation angle of the front seat is substantially U
Since the position of the U-shaped space is restricted, the volume of the substantially U-shaped space is not reduced due to excessive rotation of the front seat, and the sound absorbing effect is not impaired.

Also, luggage and small articles can be placed in this U-shaped space. And even if small items are placed, the rear seat is attached to the backrest without a gap, so there is no need to drop small items from the gap like a conventional seat-standing chair, and the backrest and seat The hem of clothes does not get caught in the gap.

Further, since the front seat is rotatably supported by the support portion provided at the rear end portion, the front seat is stabilized at the position where it is tilted forward, and swings due to a slight weight shift when seated. It does not move and has a comfortable sitting. This position can be determined by the regulating unit. Also, for the same reason, even if the front seat jumps up at the time of leaving as well as at the time of sitting, the rear end of the front seat does not go below the seat, so there is always a large space under the seat. Created, easy to put luggage under the seat.

Further, since the weight of the occupant is divided and supported by the rear seat and the front seat, the load on the support portion and the front seat itself is small. Also, the front and rear seats can be easily assembled.
Can be found. For example, penetrate the rotating part through the front seat
When configured as a single rod, the work to insert the long rod
You need space to do the job. Meanwhile, the present invention
According to the chair of the above, the arm part having the tubular member protruding is attached to the front part.
With the front seat in front of the rear seat.
After that, attach the fixed part with the rotating part to the pipe from both sides of the front seat.
What is necessary is just to insert in a shape member, and to fix an attachment part to a rear seat. Immediately
Space for assembling the arm and mounting part
However, since it is only necessary to be in the left and right direction of the seat, assembly is easy
Yes, the support itself can be realized with a very simple configuration. Ma
In addition, the front seat can be rotated by the stopper tip and stopper.
The angle of motion can be regulated with a very simple configuration
You. Also, just set the center angle of the stopper tip as appropriate
Set the rotation angle to an arbitrary value less than 180 °.
Can be According to the second aspect of the present invention, the theater hall chair according to the first aspect is further provided with an urging portion, whereby the front end of the front seat is urged in a direction of moving upward, thereby separating the chair. When seated, the front seat can be flipped up.

Therefore, according to the second aspect of the present invention, when the user leaves the seat, the front seat jumps up, and a state excellent in sound absorbing effect can be obtained. The invention described in claim 3 is :
In the theater hall for a chair according to 請 Motomeko 2, the biasing
Part torsion that urges with torsional stress around the axis
It is configured as a bar, the ends of which are front and rear seats, respectively.
It is fixed to.

[0021]

[0022]

[0023]

[0024]

According to the third aspect of the present invention, the urging portion is simply constituted by a torsion bar, and the torsion stress is used to urge the front seat. A large rotational force can be obtained.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 is a perspective view showing an appearance of a theater hall chair 1 according to one embodiment of the present invention. The chair 1 for the theater hall is a chair that is connected to the horizontal direction and fixed to the floor of the theater, and is arranged at the right end when viewed from the front.

As shown in FIG.
Is fixed to the support 11 on the theater floor, a backrest 13 fixed to the support 11 via a beam (described later) extending in the left-right direction, and the backrest 13 is sandwiched from the left and right. Armrests 15a, 15b, a rear seat 17 fixed substantially horizontally to the backrest 13, and a front seat 19 installed in front of the rear seat 17.

The strut 11 is installed between another theater chair (not shown) connected to the theater hall chair 1 and its lower end is fixed to the floor. Elbow frame 1
Armrests 23a and 23b are provided at the upper ends of 5a and 15b, and the armrest 15b and the armrest 23b are shared with the adjacent theater chair.

The front seat 19 receives the urging force of the torsion spring 25 indicated by a broken line, and is rotated until it becomes substantially vertical about a rotation axis located near the rear end of the front seat 19. (The state of FIG. 1). When seated in the theater hall chair 1, the front seat 19 is rotated forward against the urging force of the torsion spring 25 , and the front seat 19 and the rear seat 17 are rotated.
Is made substantially in one plane, and then the user sits down on that one plane.

FIG. 2 shows the state of the theater hall chair 1 when the user leaves and sits down. FIG. 2A is a left side view of the theater hall chair 1 in a sitting state, and FIG. 2B is a left side view of the theater hall chair 1 in a leaving state. As is clear from FIG. 2, when sitting down,
The front seat 19 is at the substantially horizontal position shown in FIG. 2A, but when the user leaves the seat, the front seat 19 is rotated about the shaft position P until the substantially vertical position shown in FIG. 2B. Is done. Note that one end of the torsion spring 25 serving as the power for this rotation is sandwiched between a movable seat core plate forming the bottom surface of the front seat 19 and a seat rotation arm (both will be described later). Rear seat 1
7 and a seat fixing portion bottom plate 33 forming the bottom surface thereof, but are omitted for simplicity of the figure. Further, the seat fixing portion bottom plate 33 is attached to the elbow frame 1 by the seat receiving members 35a and 35b.
5a and 15b.

Next, FIG. 3 shows a state where the theater chair in the two states shown in FIG. 2 is viewed from the front. FIG. 3 shows a state in which theater chairs 3 and 5 having the same shape are connected and installed to the right of the theater hall chair 1 of the present invention. Then, only the theater chair 5 is shown in a state of leaving the seat, that is, a state where the front seat 19 is rotated until it becomes vertical. This connection is made by installing components such as a rear seat, a backrest and the like on the beam 41 which is the long member described above. The beam 41 is supported by the columns 11 at the boundary between the theater chair 1 and the theater chair 3 and at the boundary between the theater chair 3 and the theater chair 5.

The mechanism for rotatably supporting the front seat 19 with respect to the rear seat 17 is disposed in the cushion portion and the cover 43 of the front seat 19 and the rear seat 17, respectively. FIG. 4 shows a state where the cushion portion and the cover 43 are removed. FIG. 4A is a plan view when the seat is seated, and FIG. 4B is a right side view thereof. In FIG. 4B, the cushion portion 19a of the removed front seat 19 and the rear seat 1 are shown.
7, the cushion portion 17a and the back plate 31 omitted for simplicity of the drawing are indicated by broken lines. In addition,
These cushion portions 17a and 19a are covered with a fabric, and are configured to have sound absorbing properties. The front surface of the backrest 13 is also covered with a fabric.

The seat fixing portion bottom plate 33 is provided with seat receiving members 35a, 35.
The left and right sides are supported by b, and seat movable portion mounting brackets 45a and 45b extend forward (downward in the figure) from the seat receiving brackets 35a and 35b, respectively. The movable seat mounting brackets 45a and 45b are substantially L-shaped plate-shaped members.
a and 47b, which are attached to the seat brackets 35a and 35b so as to face each other.

The opposing surfaces 47a and 47b are respectively provided on FIG.
Rotation mechanisms 49a and 49b are protruded toward the center of (a). The seat rotating arms 51a, 51b are fixed to the rotating mechanisms 49a, 49b, and the seat rotating arms 51a, 51
A seat movable portion core plate 53 that supports the cushion portion of the front seat 19 is attached to 1b. The seat rotation arm 5
1a, 51b are side walls 55a, 5 opposing opposing surfaces 47a, 47b of the seat movable portion mounting brackets 45a, 45b, respectively.
5b. The positions of the rotating mechanisms 49 a and 49 b are located at the rear end of the front seat 19.

The torsion spring 25 is formed by bending both ends of a wire having a diameter of 3.5 at a right angle to an intermediate portion, and bending the two ends so that the bent ends are substantially perpendicular to each other. And one end thereof is a seat fixing portion bottom plate 33.
, And the other end is held between the seat rotation arm 51 b and the seat movable part core plate 53. Front seat 1 as shown in FIG.
In the state where 9 is tilted forward, the middle portion is twisted and arched until no ends are parallel to each other when no load is applied. Then, due to the torsional stress of the intermediate portion, the seat movable portion core plate 53 is urged clockwise in FIG. 4B. In other words, this intermediate portion acts as a so-called torsion bar, and flips up the seat movable portion core plate 53 and thus the front seat 19.

Next, the rotation mechanism 49a and the restriction portion 59 for restricting the rotation angle will be described with reference to FIG. FIG. 5A shows the structure of the rotation mechanism 49a and its vicinity, and FIG.
FIG. 5A is a perspective view of the approximate arrow A seen from slightly above, and FIG. 5B is an explanatory diagram of the operation of the restricting portion.

The rotating mechanism 49a includes a bearing 61 fixed to the seat rotating arm 51a, a plastic bush 63 fitted inside the bearing 61, a washer 65, and a seat movable portion mounting bracket 4
And a rotating portion 67 fixed to the opposing surface 47a of 5a. The bearing 61 is a substantially cylindrical member, and has a slit hole 69 formed on the side surface thereof in a slit shape along the circumferential direction. The bearing 61 is fixed to the side wall 55a so that the axial position is substantially the same as the round hole 71 formed in the side wall 55a of the seat rotation arm 51a. Bearing here
61 corresponds to the tubular member of the present invention,
Is an arm of the present invention together with a seat rotation arm 51b (not shown).
Corresponding to the program section.

A plastic bush 63 is attached to the bearing 61.
, The rotating part 67 is connected to the plastic bush 63.
, And the front seat 19 is rotated by rotating the bearing 61 about the rotary unit 67 together with the seat rotation arm 51a. On the other hand, the restricting portion 59 includes a stopper chip 73 which is a substantially fan-shaped plate member and a stopper 75 which is a columnar member having a substantially semicircular cross section.

The center angle of the stopper chip 73 is 100 °,
The radius is slightly larger than the radius of the bearing 61, and FIG.
As shown in (b), one surface 77a forming the radius portion is inserted and fixed in the slit hole 69 in a substantially vertical posture. The stopper 75 extends from the end face of the rotating part 67 and is formed integrally with the rotating part 67 so that the abutting surface 79, which is a semicircular cross section and has a diameter, is vertical.

When the stopper 75 is inserted into the hole of the plastic bush 63 together with the rotating part 67, the contact surface 79 of the stopper 75 becomes one surface 77 a of the stopper chip 73.
Arrow C of the bearing 61 and the seat rotating arm 51a.
And the rotational position in the opposite direction. On the other hand, when the stopper tip 73 is turned in the direction of arrow C, the other surface 77b forming the radial portion of the stopper chip 73 comes into contact with the contact surface 79, and the turning position in the direction of arrow C, that is, the front seat 19 jumps up. Regulate the angle. The angle is 180 ° -100 ° = 80 °.

According to the chair 1 for a theater hall having the above-described structure, the seats are provided on the front seat 19 and the rear seat 17 in front and rear directions.
Since it is divided and the rear seat 17 is attached to the backrest 13 without a gap, the hem of the clothes is sandwiched in the gap between the backrest and the seat like a conventional seat-standing chair. No small articles are dropped from the gap.

The rear seat 17 keeps a substantially horizontal state even when the user leaves the seat, while the front seat 19 is flipped up to a position substantially perpendicular to the floor surface by the action of the above-described regulating portion 59. It can rotate only up to this point, and a large space is kept between the backrest 13 and the luggage can be placed on the rear seat 17.
Even if a soft object such as a hat or a bouquet is placed, it will not be crushed by the front seat 19 that has been flipped up. In addition, since this space is surrounded by members covered with a fabric, such as the cushion portions 17a and 19a and the front surface of the backrest 13, a sound absorbing effect comparable to a human body when seated can be exhibited.

Further, most of the weight of the seated person is supported by the rear seat 17, and the front seat 19 only needs to support the weight of only the legs of the person. Moving mechanisms 49a, 49b, seat movable part mounting brackets 45a, 45
The burden on each part such as b is small.

Further, the front seat 19 is supported by rotating mechanisms 49a and 49b provided at the rear end thereof, and is located near the center of the seat in the front-rear direction like a conventional upright chair. Although it is not supported, it is almost flush with the rear seat 17 with a slight force despite being biased by the torsion spring 25, and swings with a slight weight shift when seated. It is comfortable to sit without.

For the same reason, even when the front seat 19 jumps up as well as at the time of sitting, a small portion of the front seat 19 goes under the seat. That is, the theater hall chairs 1 and 3 of FIG.
As shown in (b), the seat back plate 31 only slightly comes out downward. In other words, a large space is always created below the rear seat 17, and luggage can be easily placed under the seat. And front seat 1
9 can be easily lifted by the torsion spring 25 when leaving the seat, so that it is easy to take out the luggage placed under the seat.

The positions of the rotating mechanisms 49a and 49b are
For example, if it is arranged on the back of the front seat 19 (or the back of the rear seat 17) instead of the rear end of the front seat 19 like the theater hall chair 1, the seat movable part mounting brackets 45a and 45b are provided.
(Or the seat rotating arms 51a and 51b) are temporarily bent below the seat, and then the rotating mechanisms 49a and 4b are rotated.
The shape must reach the position of 9b, which makes it difficult to place luggage under the seat.

In addition, in this case, when the front seat 19 is flipped up, the portions corresponding to the seat movable portion mounting brackets 45a and 45b (or the seat rotating arms 51a and 51b) (hereinafter simply referred to as mounting brackets) move forward. This may cause the person to attempt to move the chair in the left-right direction in front of the chair, get caught on the hem of a person's clothing, or hit the part overhanging the person. Do not divide this mounting bracket into two parts, left and right.
If it is configured as an integral body having a width of about 9, it is possible to prevent the above-mentioned troubles such as hooking or hitting a foot, but in this case, a mounting bracket becomes large,
The weight of the chair itself also increases.

On the other hand, in the theater hall chair 1, as described above, luggage can be easily placed under the seat, and the rotating mechanisms 49 a and 49 b are located at the rear end of the front seat 19. As shown in FIG. 2B or the theater chair 5 shown in FIG. 2B, when the front seat 19 jumps up, there is no portion protruding forward. The chair 1 itself can be lightweight.

The pivoting mechanisms 49a and 49b and the restricting portion 59 are built in the cushion of the front seat 19, and the seat movable portion mounting brackets 45a and 45b are built in the cover 43, so that safety is provided. As described above, the theater chair according to one embodiment of the present invention has been described. However, the present invention is not limited to the above configuration, and can be implemented in various modes.

For example, the theater hall chair 1 is configured as a connected chair connected to the theater chairs 3 and 5, but may be configured as a single chair. in this case,
If the pillars 11 are arranged one by one below the elbow frames 15a and 15b, the luggage can be easily placed under the seat similarly to the theater hall chair 1.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a theater chair according to one embodiment of the present invention.

FIG. 2 is a side view showing a state where the theater chair according to the embodiment is seated and a state where the theater chair is left.

FIG. 3 is a front view showing a state where the theater chair according to the embodiment is seated and a state where the chair is released.

FIG. 4 is an explanatory diagram showing a configuration of a seat portion of the theater chair of the embodiment.

FIG. 5 is an explanatory diagram of a rotation mechanism and a regulating unit.

FIG. 6 is an explanatory view of a conventional theater chair.

[Explanation of symbols]

1, 3, 5 ... theater chairs 11 ... pillars 13 ... backrests 17 ... rear seats 19 ... front seats 33 ...
Seat fixing portion bottom plate 35a, 35b Seat receiving member 45a, 45b Seat movable portion mounting bracket 49a, 49b Rotating mechanism 51a, 51b Seat rotating arm 53 ... Seat movable portion core plate 59 ... Regulator 61
Bearing 63 ... Plastic bush 65 ... Washer 67 ...
Rotating part 73 ... Stopper tip 75 ... Stopper

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47C 1/121 A47C 7/62

Claims (3)

(57) [Claims] 1. A chair for a theater hall comprising a backrest and a seat, wherein the seat is provided with no gap with respect to the backrest and a front seat opposite to the backrest with respect to the backrest. And a mounting portion extending forward and rearward from substantially both side positions of the rear seat, and one body on each rear side surface of the front seat. Backward
Arm portions projecting from each other, and tubular portions projecting from surfaces of the respective arm portions facing each other.
Material, and fixed to each of the mounting parts, from the side of the front seat
Two substantially cylindrical members inserted one by one through the tubular member
Rotating part and two plate-like members having a central angle of less than 180 ° and having a substantially sector shape.
Then, one sheet is protruded from the inner peripheral surface of each of the tubular members.
A stopper chip and a cylinder extending from each of the rotating parts and having a
/ 2 is a columnar member having a shape cut into 2
When inserted into each of the tubular members together with the turning part,
Surface, the two half halves of a substantially sector shape in the stopper tip.
By contacting any one of the surfaces forming the radial portion , the rotation angle of the front seat is changed from a position where the front seat is substantially flush with the rear seat to a position where the front seat is substantially perpendicular to the rear seat. and a stopper for restricting a range of up to, yet the seating surface of the front seat, the seating surface of the rear seat, and the front surface of the seat back, characterized by being configured by a sound-absorbing material Theater Chair for hall. 2. The theater hall chair according to claim 1, further comprising: a biasing portion for rotating the front seat by rotating the front seat in a direction in which a tip of the front seat moves upward.
A chair for a theater hall, comprising: 3. The chair for a theater hall according to claim 2 , wherein said biasing portion is a torsion bar, and both ends thereof are fixed to said front seat and said rear seat, respectively. Theater hall chair.