JP2723035B2 - Floor mounting structure for moving bleachers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor plate mounting structure for a movable seat used in a gym or a multipurpose hall.

[0002]

2. Description of the Related Art Recently, various types of movable seats for multipurpose use in a gymnasium or the like have been developed. In this type of movable spectator seat, for example, the left and right ends of floor frames having different heights are supported by movable traveling frames, and each floor frame is developed in a tiered manner by the reciprocating operation of the traveling frames. The seats installed on each floor frame can be put into a usable state, or each floor frame can be retracted to a position where the seats overlap one another, so that the seats can be stored compactly.

[0003] However, not only the seats but also floor boards are laid on the floor frame of such a movable spectator seat, and the mounting structure of the floor boards is such that the front end and the rear end of the floor boards are attached to the floor frame. 2. Description of the Related Art There is known a device that fits and holds a groove provided in a front beam, a rear beam, or the like.

[0004]

However, the front end of the floorboard is fitted into the rearward groove provided integrally with the front beam, and the rear end of the floorboard is fitted into the forward groove provided in the rear beam and the like. In the case of assembling the floor frame, it is necessary to assemble the floorboard at the same time when assembling the floor frame, there is a problem that the degree of freedom of the assembly work is low, and also when the floorboard is damaged and it needs to be replaced However, there is a problem in that the floor frame itself needs to be disassembled, and the replacement work is troublesome.

In order to cope with such a problem, at least one groove is formed between a plurality of members, and the two members are joined to form a groove so that the floorboard can be held. However, such a method has a problem that the number of parts increases and the structure becomes complicated.

[0006] Further, in each case, if only the ends of the floorboard are held by the concave grooves, the floorboard will rattle back and forth, so it is necessary to fix the floorboard to the floor frame using screws or the like. In this case, the structure becomes complicated and the assembly work and the like become complicated.

[0007] An object of the present invention is to provide a floor mounting structure for a movable spectator seat that can solve such a problem.

[0008]

In order to achieve such an object, the present application employs the following means. That is, the floor plate mounting structure for a movable spectator according to claim 1 of the present application forms a floor frame by providing a support member between a front beam and a rear beam, and a floor plate, a chair, and the like are provided on the floor frame. A unit frame to be supported is mounted, and the back surface of the front beam and the front end surface of the floor plate are engaged with each other through a tapered engagement portion, and the front surface of the unit frame and the rear end surface of the floor plate are connected to each other. Are engaged with each other via a taper engaging portion, and the unit frame is attached to the floor frame.

Further, in the floor plate mounting structure for a movable spectator according to claim 2 of the present invention, a support member is provided between the front beam and the rear beam to form a floor frame, and the floor plate and the chair are supported. A unit frame is attached to a front beam via a fastening member, and a rear surface of the unit frame and a front end surface of a floor plate are engaged with each other through a tapered engagement portion, and a rear end surface of the floor plate and a rear beam are connected to each other. The front surface may be engaged via a tapered engagement portion.

[0010] In order to reduce unpleasant noise generated between the support member and the floor plate, it is preferable that the floor plate is supported on the upper surface of the support member via a rubber sheet.

[0011] Further, in order to allow the floorboards to be commonly used for different floor frame lengths, a plurality of floorboards are arranged in the longitudinal direction of the floor frame.
It is preferable that a floor connecting member taperedly engaged with each of the joining end surfaces is interposed between the joining end surfaces of the floor plates.

[0012]

With such a structure, the floor plate is held between the front beam or the rear beam of the floor frame and the unit frame via the tapered engaging portion at the front end surface and the rear end surface thereof. The movement is prohibited by attaching the frame to the floor frame. Although the floorboard itself is not attached to the floor frame, it is engaged with the front beam or the rear beam constituting the floor frame via the tapered engagement portion, and is engaged with the unit frame attached to the floor frame. It does not rise or fall off. Moreover, the configuration in which the floorboard is substantially fixed is based on attaching the unit frame to the floor frame, and by removing the unit frame from the floor frame, the floorboard can be removed from the floor frame. The floorboard can be fixed by attaching. Therefore, it is possible to assemble the floor boards independently of the assembling of the floor frame, and the degree of freedom of the assembling work is increased. This facilitates the work of replacing the floorboard.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

In the movable seat 100 shown in FIG. 1, a plurality of floor frames 3 of different heights on which a floor plate 1 and a unit frame 2 supporting a tiltable chair Ch are mounted are connected so as to be able to advance and retreat. And is stored below the highest floor frame 3 when not in use. The advance / retreat operation of the floor frame 3 is performed by the driving device 4. As the driving device 4 itself, those widely known in the art can be used. For example, the respective floor frames 3 are connected, the frontmost floor frame 3 is pushed out by the ladder chain 41, and the ladder chain 41 is used. Is configured to be drawn in by winding up. Note that the materials of the floor frame 3, the unit frame 2, and the floor panel 1 may be the same as those well known in the art.

The floor frame 3 includes two support columns 34 erected on a traveling frame (not shown), a rear beam 31 composed of a channel member provided between the support columns 34, and a support member 32 in front of the rear beam 31. And a front beam 33 provided. The columns 34 have different heights in each floor frame 3, and the columns 34 in the front row are the lowest, and the columns in the rear row are sequentially higher. The length of the rear beam 31 and the length of the front beam 3 are the same in each stage, and are configured so that the audience seats can be formed in a tiered shape having the same width. In this case, the interval between the columns 34 fixed to the rear beam 31 is largest at the highest column 34,
It becomes smaller in inverse proportion to the height of the column 34. And between the rear beam 31 and the front beam 33, a plurality of support members 32 composed of a channel member having a horizontal portion 32a extending outward at the upper end are horizontally laid forward at a predetermined pitch. And their respective front ends 3
A hollow columnar front beam 33 is fixed to 2b.
On the upper surface of the rear beam 31, corresponding to the support member 32 closest to the left and right ends of the floor frame 3 located on the upper stage,
Rollers 31 for rolling the lower surfaces of the support members 32
a is provided rotatably. Front beam 33
Is basically a rectangular parallelepiped shape, and a rear surface 33a facing the rear beam 31 above the support member 32 projects a cross-sectional shape toward the rear beam 31 into an isosceles triangular shape to form the tapered engagement portion 5. It has a tapered surface. Further, on the upper surface of the horizontal portion 32a of the support member 32, a rubber sheet Rb is provided to reduce unpleasant noise generated by collision of the floor plate 1 and the unit frame 2 mounted thereon.
Is affixed.

The floor plate 1 is a rectangular plate of a fixed size in a plan view, and the front, rear, left and right end surfaces 1a, 1b, 1c, 1d are each formed in a tapered surface which is depressed inward. That is, one floorboard 1 is set to, for example, 1/5 the length of the width of the floor frame 3 and a plurality of floorboards 1 are continuously mounted in the left-right direction, so that the left and right sides of the floor frame 3 are placed. Set to cover the entire length in the width direction. A floor connecting member 6 having a rhombic cross section is interposed between the floor plates 1 so that the adjacent left and right floor plates 1 are connected to each other by taper engagement. For this reason, not only the front end face 1a and the rear end face 1b that engage with the front beam 33 and the unit frame 2 described below, but also the front end and rear end faces 1a,
A tapered surface is formed in the same shape as 1b.

The unit frame 2 includes a hollow prism-shaped front support member 21 and a rear support member 2 serving as a base portion of the chair Ch.
2, a U-shaped reinforcing member 23 fixed to the rear end face 22a of the rear support member 22, and a chair unit 24 installed between the front and rear support members 21 and 22. The front end surface 21 a of the front support member 21 is formed in a tapered surface having the same shape as the front beam 33 so as to protrude forward, that is, toward the front beam 33. And the front and rear support members 2
1 and 22 can be attached to the support member 32 of the floor frame 3 using, for example, bolts and nuts as fastening members. A space is formed between the rear support member 22 and the rear beam 31 at the fixed position of the unit frame 2 so that the unit frame 2 can be moved backward. The chair Ch in the chair unit 24 is set so that it can be seated after each floor frame 3 is pulled out to the use position, and is tilted forward in a state where the floor frame 3 is stored. Sometimes, it does not come into contact with the upper floor frame 3.

In such a configuration, the floor plate 1 is assembled in the following manner. First, the floor plate 1 is placed on the support member 32 of the floor frame 3. The floor plate 1 moves forward until its front end surface 1a is in close contact with the back surface 33a of the front beam 33. In the case of using a plurality of floorboards 1, the floor connecting material 6 is inserted between the adjacent floorboards 1 and positioned so that the floor connecting material 6 is embedded between the floorboards 1 so that no gap is generated between the floorboards 1. . Thereafter, the unit frame 2 is placed on the floor frame 3 at a position behind the floor plate 1, moves toward the floor plate 1, and is sufficiently pressed against the floor plate 1. In this state, the floorboard 1
Means that the front end surface 1a is the rear surface 33a of the front beam 33.
And the rear end face 1b is engaged with the front end face 21a of the front support member 21 of the unit frame 2, and the front and rear portions are sandwiched between the front beam 33 and the unit frame 2 via the tapered engagement portions 5 and 7. Becomes Then, by fixing the unit frame 2 to the floor frame 3 at that position,
The floorboard 1 is attached to the floor frame 3 in a state where movement is prohibited.

If it becomes necessary to replace the floor panel 1 after use, the floor panel 1 is replaced by moving the fixed unit frame 2 backward. Specifically, first, the bolts fixing the unit frame 2 are removed, and the unit frame 2 is brought into a movable state. Thereafter, the unit frame 2 is moved backward until it comes into contact with the rear beam 31. In this state, the floor plate 1 is released from the tapered engagement of the rear end face 1b, and is made movable so that the target floor plate 1 is moved rearward, and the tapered engagement of the front end face 1a is also released. Remove from floor frame 3.

As described above, since the floor plate 1 is mounted on the floor frame 3 by the tapered engagement of the front and rear end surfaces 1a and 1b, the floor plate 3 is assembled and replaced.
Need not be disassembled, and the operation is greatly simplified. That is, when assembling and replacing the floorboard 1,
The object can be achieved only by performing a light work such as fixing or moving the unit frame 2 to be fixed to the floor frame 3 using only bolts. Therefore, the assembling can be performed completely independently of the assembling of the floor frame 3, and the order of the assembling work of the movable spectator seat can be prevented from being restricted at all. In addition, the fixed floor plate 1 is completely positioned in the vertical direction by the tapered engagement portions 5 and 7 between the floor frame 3 and the unit frame 2, so that a step can be prevented from occurring, and the back and forth direction is loose. It can eliminate sticking.

Further, since the floor boards 1 are combined to fit the width of the floor frame 3 by combining a plurality of the floor boards, only the damaged floor board 1 can be replaced independently of the others, and the floor frames 3 can be individually replaced. , The number of components required for fixing can be reduced, and the structure can be simplified. Moreover, as in this embodiment, the adjacent floor plate 1
By forming tapered surfaces on the right and left end surfaces 1c and 1d and connecting the floor connecting members 6 in a tapered manner, the upper surface of the floor plate 1 can be formed even though a plurality of floor plates 1 are used. It is possible to eliminate the step at the seam.

The shapes of the front beam, the rear beam and the unit frame constituting the floor frame are not limited to those of the embodiment described above.
Various modifications are possible, such as the structure shown in FIG. In this other embodiment, the structure of the chair attached to the unit frame is different from that of the above embodiment, and is a so-called bench type, without a backrest, and the seat is substantially continuous with the floor frame in the left-right direction. They are formed to have the same length. That is, a support member 132 of the same type as in the above-described embodiment and having a rubber sheet 100Rb attached thereto is erected between the front beam 133 and the rear beam 131 to form the floor frame 103, and the floor plate 101 and the chair 10
The unit frame 102 supporting 0Ch
0b and the front beam 133 via the nut plate 100n.
The rear surface of the unit frame 102 and the front end surface 101b of the floor plate 101 are tapered engagement portions 10
5 and the rear end face 1 of the floorboard 101.
01a and the front surface of the rear beam 131 are
7 are engaged.

The front beam 133 has a rectangular beam 133a having a rectangular cross section, and a portion in which two horizontal sides of the beam 133a extend forward, and a lower end of the beam 133a extends vertically upward and a tip of an upper side extends vertically. The front space S1 formed by the downwardly extending portion, the frontwardly extending upper end vertically extending upward and horizontally extending rearward, and the vertical rear of the beam 133a. An upper space S2 formed by extending one side of the beam upward and horizontally extending forward, and a space S3 formed by extending two horizontal sides of the beam 133a rearward. .

The rear beam 131 has a U-shaped cross section and its front surface facing the unit frame 102 above the support member 132 has an isosceles triangular cross section toward the unit frame 102 so as to form the tapered engagement portion 107. It protrudes into a shape and forms a tapered surface 131a.

The unit frame 102 is a chair 100C
h, a tapered surface 10 projecting in an isosceles triangular cross section toward the rear beam 131 to form a horizontal surface 102a supporting the chair 100Ch and a tapered engagement portion 105.
It is composed of a base 102c having 2b. The bolt 100b and the nut plate 10 are provided above the front beam 133.
0n can be attached.

In such a configuration, the floor plate 101 is assembled as follows. First, rear beam 1
31 on the rear end face 101a of the floor plate 101
The floor plate 101 is placed on the support member 132 so that Connect the unit frame 102 to the front beam 1
33 and the tapered surface 10 of the unit frame 102.
The floor plate 101 and the unit frame 102 are moved toward the rear beam 131 so that the front plate 2b and the front end surface 101b of the floor plate 101 are brought into contact with each other and sufficiently pressed against the tapered surface 131a of the rear beam 131. In that state, the upper space S
By attaching the unit frame 102 to the front beam 133 via the nut plate 100n and the bolt 100b included in the floor plate 2, the floor plate 101 is attached to the floor frame 103 in a state where movement is prohibited.

If it becomes necessary to replace the floor panel 101 after use, the floor panel 101 is replaced by moving the fixed unit frame 102 forward. Specifically, first, the bolts 100b that fix the unit frame 102 are loosened so that the unit frame 102 can be moved. Thereafter, the unit frame 10 is moved until the forward movement is restricted by the rear beam 133.
Move 2 forward. In this state, the tapered engagement of the front end surface 101b of the floor plate 101 is released, and the floor plate 101 can be moved forward. Therefore, the target floor plate 101 is moved forward, and the taper engagement of the rear end surface 101a is also released. Floor frame 103
Remove more.

With such a configuration, the same effects as in the above embodiment can be obtained.

Other configurations are not limited to those of the embodiment described above, and various modifications can be made without departing from the spirit of the present invention.

[0030]

As described above in detail, the invention according to claim 1 is based on the front beam of the floor frame and the unit frame, and the invention described in claim 2 is based on the rear beam of the floor frame and the unit frame. Since the floor plate is mounted on the floor frame via the tapered engagement portion, the number of parts can be reduced, the work of assembling and replacing the floor plate can be facilitated, and the step and the clearance are formed by the tapered engagement. It can be installed without sticking.

According to the third aspect of the present invention, since the floor plate is supported on the upper surface of the support member via the rubber sheet, unpleasant noise generated between the support member and the floor plate can be reduced.

Further, according to the fourth aspect of the present invention, since a plurality of floorboards are arranged in the longitudinal direction of the floor frame, even if it becomes necessary to replace the floorboards, only the target floorboard can be replaced. This makes it possible to reduce the amount of work and the floor boards to be replaced. In addition, since a floor connecting member that is taperedly engaged with the joining end face is interposed between the joining end faces of the floor plates, steps and rattling can be eliminated.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing one embodiment of the present invention.

FIG. 2 is an exploded perspective view of the embodiment.

FIG. 3 is a side sectional view of the embodiment.

FIG. 4 is a side sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 1, 101: floor plate 2, 102: unit frame 3, 103: floor frame 5, 105: tapered engaging portion 6: floor connecting member 7, 107: tapered engaging portion 1a, 101a: front end surface 1b, 101b: rear end surface 1c left end face 1d right end face 21a front end face 31, 131 rear beam 32, 132 support member 33, 133 front beam 33a rear face Ch, 100Ch chair Rb rubber seat

Claims (4)

(57) [Claims] A floor frame is constructed by arranging a support member between a front beam and a rear beam, and a floor frame and a unit frame for supporting a chair or the like are mounted on the floor frame. The rear face of the front beam and the front end face of the floorboard are engaged with each other via a tapered engagement portion, and the front face of the unit frame and the rear end face of the floorboard are engaged with each other via a tapered engagement portion. A floor plate mounting structure for a movable spectator seat, wherein the floor is attached to a floor frame. 2. A floor frame comprising a support member provided between a front beam and a rear beam, and a unit frame for supporting a floor plate and a chair is attached to the front beam via a fastening member. The rear surface of the unit frame and the front end surface of the floor plate are engaged with each other via a tapered engagement portion, and the rear end surface of the floor plate and the front surface of the rear beam are engaged with each other via a tapered engagement portion. The floor plate mounting structure of the moving grandstand. 3. The floor plate mounting structure according to claim 1, wherein the floor plate is supported on an upper surface of the support member via a rubber sheet. 4. A floor frame comprising a plurality of floorboards arranged in the longitudinal direction of a floor frame, wherein a floor connecting member taperedly engaged with each of said bonding end faces is interposed between the bonding end faces of said floorboards. 4. The floor plate mounting structure for a mobile seat according to claim 1, 2 or 3.