JP2731767B2 - Chair display plate holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display plate holding device for a chair suitably used in a hall or the like.

[0002]

2. Description of the Related Art A large number of chairs used in a hall or the like are provided with a display plate indicating a seat number or the like on the back of a backrest. Conventionally, as a display plate holding device for holding such a display plate on a backrest, a pocket-shaped device formed by sewing or bonding the lower edge and the left and right side edges of a transparent sheet to the back of the backrest is known. Are known.

[0003]

However, such a pocket-shaped object is liable to be damaged when the user grips the opening edge thereof and pulls it downward, and when damaged, it is necessary to repair the entire backrest.

[0004] An object of the present invention is to solve such a problem.

[0005]

In order to achieve the above object, the present invention employs the following configuration. That is, the display plate holding device for a chair according to the present invention includes a base that is detachably fitted to an opening formed in a backrest of the chair, and a plate holding unit that is provided in the base and holds the display plate so as to be visible. name comprises a is, based on
The body is a frame-like member that engages inside the opening edge of the opening.
And the plate holding portion is an empty space surrounded by the base.
A pair of holding plates that sandwich the display plate so that they can be seen
Characterized in der Rukoto those arranged.

In such a configuration, since the base is detachably mounted on the backrest, even if the plate holding portion is destroyed or discolored due to aging and needs to be replaced, the backrest can be replaced. It is possible to replace the base and the plate holding unit in a unit state without any repair.

Therefore, no major repair work is required.
In addition, keep the display plate holding part of the chair in the expected state.
Can be kept. Moreover, the base is opened with the backrest open.
Since it is fitted to the mouth, the entire display plate holding device
Easy to fit most or most parts within the thickness of the backrest
become. Therefore, apply it to a stackable chair
Does not reduce its stacking efficiency
The effect is obtained.

Further, according to such a structure, the plate holding portion can be protected by the base, so that the plate holding portion is less susceptible to damage as compared with the conventional pocket-shaped one.
The operation and effect of easily preventing the display plate from being unduly removed are added.

The invention according to claim 2 is further characterized in that the plate holding portion is provided in a lower half of the space.

With such a configuration, it is possible to insert a hand into the upper half of the space and hold the upper edge of the base. For this reason, there is also an operational effect that the base can function as a handle when the chair is moved.

The invention according to claim 3 is further characterized in that the pair of holding plates are curved.

In this way, even if the gap between the holding plates is set to be much larger than the thickness of the display plate, the mounted flat display plate is compared with both holding plates due to its own elasticity. You will come into strong contact. Therefore, the operation of inserting the display plate is easy, and the display plate in the mounted state can be effectively prevented from rattling.

According to a fourth aspect of the present invention, a notch is further provided at an upper edge of one of the holding plates, and a projection protruding near an upper edge of the display plate inserted between the holding plates is provided with the notch. It is configured so that it can be loosely fitted to the part.

According to such a configuration, a finger can be hooked on the projection of the display plate by pinching the upper end portions of both holding plates. Therefore, even if the display plate is tightly inserted between the holding plates, the display plate can be relatively easily removed.

According to a fifth aspect of the present invention, instead of fixing both holding plates, one holding plate is fixed to a frame-shaped base, and the other holding plate is fixed to one holding plate. It is characterized by a butterfly installed so that it can come and go.

With such a structure, the gap between the two holding plates can be largely opened by rotating the holding plate provided with the butterfly in a direction away from the fixed holding plate. Therefore, the mounting and dismounting of the display plate becomes easy.
In addition, after the display plate is inserted, by rotating the hinged holding plate in the direction of the fixed holding plate,
The display plate can be accommodated in a closed space. Therefore, it is possible to effectively solve the problem that the display plate is incorrectly removed. Further, according to such a configuration, it is also possible to adopt a structure in which a person other than a person concerned cannot know how to remove the display plate.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

This chair includes a frame 1, a seat 2, and a backrest 3, as shown in FIG.

The frame 1 includes left and right rear legs 4, left and right base portions 5 extending forward from lower ends of the rear legs 4, and left and right front legs 6 rising upward from the front ends of the base portions 5.
And left and right seat frame side portions 7 extending rearward from the upper ends of both front legs 6, and extending portions 8 extending upward from the rear ends of the seat frame side portions 7, It is rigidly connected by welding to the inner surface of the back support rod 9 extending upward from the upper end of the rear leg 4. Then, both ends of the seat frame rear portion 11 are joined to the inner surface of the rear end portion of the seat frame side portion 7 by welding, and both ends of the seat mounting plate 12 are welded to the inner surface of the front end of the seat frame side portion 7 by welding. Are joined. The distance between the outer surfaces of the left and right front legs 6 and the distance between the outer surfaces of the left and right seat frame side portions 7 are set smaller than the distance between the inner surfaces of the rear legs 4 and the inner surface of the base portion 5. And can be stacked as shown in FIG. In other words, this chair is configured such that the rear leg 4 and the base 5 of the next chair are connected to the front leg 6 and the seat frame side 7.
The seat 2 of the next chair overlaps on the upper surface of the seat 2 and the backrest 3 of the next chair overlaps the front of the backrest 3 by stacking so as to cover the outside of the chair. The seat frame rear portion 11 is made of a metal bar having a circular cross section.
A deformed cross-section 11a is formed in the central portion of 1 by crushing the upper and lower surfaces two-dimensionally.

The seat 2 is made of synthetic resin or the like. The rear edge of the seat 2 is engaged with the rear portion of the seat frame 11, and the left and right side edges of the seat 2 are engaged with the seat frame side portion 7. Board 1
2 is fixed via bolts and the like (not shown).

The backrest 3 is made of a synthetic resin or the like, and has a mounting groove 13 for receiving the back support rod 9 and the extension 8 of the frame 1 on both left and right edges. On the inner side of the lower edge of the backrest 3, an engagement groove 14 is provided for engaging with the seat frame rear portion 11 of the frame 1 by utilizing elastic deformation of the member. Further, an opening 15 opened downward is formed at the center of the lower edge of the backrest 3.
On the side inner surface 15a and the upper side inner surface 15b of the opening 15,
Protrusions 16 having a wide distal end are formed continuously.

A display plate holding device 21 according to the present invention is provided on a chair having such a configuration. As shown in FIGS. 3 and 4, the display plate holding device 21 includes a base 22 detachably fitted to the opening 15 of the backrest 3,
A plate holding unit 24 provided on the base 22 and holding the display plate 23 so as to be visible is provided. Substrate 2
Reference numeral 2 denotes a frame made of a synthetic resin, which is engaged with the inside of the opening edge of the opening 15 of the backrest 3. Specifically, the upper end surface 22a of the base 22 and the left and right side surfaces 22a
b is provided with a continuous engaging groove 25 having a wide inner side, and the engaging groove 25 and the ridge 16 of the opening 15 are engaged using temporary elastic deformation of the member. I have. A forward engagement groove 26 is formed on the lower edge front surface of the base 22,
The forward engagement groove 26 is elastically engaged with the modified cross-section 11 a formed in the rear portion 11 of the seat frame of the frame 1. The assembling order is such that the base 22 is fitted from below into the opening 15 of the backrest 3 detached from the frame 1 as shown in FIG. 2, and then the backrest 3 is mounted on the frame 1. I have. When elastically engaging the engagement groove 14 formed on the lower edge of the backrest 3 with the rear portion 11 of the seat frame, the front engagement groove 26 of the base 22 and the irregularly shaped cross-section portion 11a of the rear portion 11 of the seat frame are connected. The elastic engagement is performed. The plate holding portion 24 includes a space 27 surrounded by the base 22.
And a pair of holding plates 28 and 29 for holding the display plate 23 visually. Both clamping plates 28, 29
Is a flat plate made of a transparent synthetic resin, and is disposed in the lower half of the space 27 in a slightly curved state as shown in FIGS. These holding plates 28,
29 is inserted into the space 27 through a slit 22e that penetrates one of the side pillars 22c of the base 22, and its inserted end is engaged with a slit (not shown) provided on the other side pillar 22d of the base 22. Is mounted on the base 22.

With such a structure, the base 22
The backrest 3 is detachably mounted on the backrest 3, so even if the holding plates 28, 29 of the plate holding portion 24 are broken or become discolored due to aging and need to be replaced, the backrest 3 should be repaired. Without this, the base 22 and the plate holding portion 24 can be exchanged in a unit state. Accordingly, the holding portion of the display plate 23 of the chair can be maintained in a desired state without a large repair work. In addition, the base body 22 is
, It is easy to fit the entire or most of the display plate holding device 21 within the thickness of the backrest 3. Therefore, even if the stacking is performed as shown in FIG.
The possibility of mutual interference is reduced. Therefore, the effect that the stacking efficiency is not reduced is obtained.

Further, the base 22 is formed in a frame shape, and the plate holding portion 24 is formed in a space 27 surrounded by the base 22.
Since it is disposed inside, it is less susceptible to damage than a conventional pocket-shaped one, and it is easy to prevent the display plate 23 from being unjustly extracted. If the base 22 is formed in a frame shape and the holding plates 28 and 29 are transparent, the display plate 23 can be viewed not only from the back side of the backrest 3 but also from the front side. It becomes possible.

Moreover, since the plate holding portion 24 is provided in the lower half of the space 27, it is possible to insert a hand into the upper half of the space 27 and to grip the upper edge of the base 22. become. Therefore, the base 22 can also function as a handle for moving the chair.

Further, since the holding plates 28 and 29 constituting the plate holding portion 24 are curved, the holding plates 28 and 29 are curved.
Even if the gap between the display plates 23 is set to be much larger than the thickness of the display plate 23,
3 comes into contact with both holding plates 28 and 29 relatively strongly due to its own elasticity. Therefore, the work of inserting the display plate 23 becomes easy, and the display plate
3 can be effectively prevented from rattling.

6 and 7, a notch 129a is provided at the upper edge of one of the holding plates 129, and
The projection 123a protruding from the vicinity of the upper edge of the display plate 123 inserted between the cutouts 129 and 129 can be loosely fitted into the cutout 129a. This projection 129
“a” is formed integrally by expanding a part of the display plate 123 to the rear side. When the display plate 123 is loosely fitted in the cutout portion 129, its tip projects forward from the front surface of the holding plate 129. It is supposed to.

With such a configuration, as shown in FIG. 7, when the outer surfaces of both holding plates 128 and 129 are pinched, the projection 123a of the display plate 123 comes into contact with the finger, so that the display is performed. The plate 123 can be pulled out smoothly upward, and the replacement work of the display plate 123 can be performed quickly.

FIGS. 8 and 9 show a structure in which one holding plate 228 is fixed to the base 22 and the other holding plate 229 is moved toward and away from the one holding plate 228. It was established. Specifically, one holding plate 228 is inserted into the space 27 through a slit 22e penetrating the one side pillar 22c of the base 22, and the insertion end is provided in the other side pillar 22d of the base. It is fixed to the base 22 by engaging with a slit (not shown). The other holding plate 229 has a bearing 22
9a, and a support shaft 231 inserted into the space 27 through a shaft hole 22f penetrating through the side pillar portion 22c of the base body 22 is inserted into the bearing portion 229a so that the holding plate 229 is rotatably moved. I have Reference numeral 232 denotes a torsion coil spring for urging the holding plate 229 to rotate in the holding plate 228 direction.

With such a structure, the upper edge of the holding plate 229 is urged forward, so that the holding plate 229 rotates forward as indicated by the imaginary line in FIG. Display plate 2 between the two holding plates 228 and 229.
23 can be inserted. Then, when the urging force on the holding plate 229 is released after the display plate 223 is inserted, the holding plate 229 is rotated rearward by the elastic force of the torsion coil spring 232, and as shown by a solid line in FIG. Is sandwiched. Therefore, if this is done, the display plate 223
Can be easily inserted and removed, and the display plate 223 does not easily fall off while the display plate 223 is held.

The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the gist of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the same embodiment.

FIG. 3 is an exemplary exploded perspective view showing a main part of the embodiment;

FIG. 4 is a side sectional view showing a main part of the embodiment.

FIG. 5 is a side view showing the stacking state of the chair in the embodiment.

FIG. 6 is a perspective view showing another embodiment of the present invention.

FIG. 7 is a side sectional view showing the same embodiment.

FIG. 8 is an exploded perspective view showing still another embodiment of the present invention.

FIG. 9 is a side sectional view showing the same embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Frame 2 ... Seat 3 ... Backrest 4 ... Rear leg 5 ... Base part 6 ... Front leg 7 ... Seat frame side part 15 ... Opening 21 ... Display plate holding device 22 ... Base body 23 ... Display plate 24 ... Plate holding part 28 ... clamping plate 29 ... clamping plate 123 ... display plate 128 ... clamping plate 129 ... clamping plate 223 ... display plate 228 ... clamping plate 229 ... clamping plate

Claims (5)

(57) [Claims] An object of the present invention includes a base which is detachably fitted to an opening formed in a backrest of a chair, and a plate holding part provided on the base for holding a display plate so as to be visible.
Ri, substrate, those frame-shaped to engage the opening edge inwardly of the opening
Wherein the plate holding portion is surrounded by the base
A pair of clamps that visually clamp the display plate in space
Display plate holding device of the chair, characterized in der Rukoto that arranged plate. Wherein the plate holding unit, the chair of the display plate holding device of which claim 1 is provided in the lower half of the space. 3. are is curved clamping plate paired claim 1
Or the display plate holding device for a chair according to 2 . 4. A notch is provided at the upper edge of one of the holding plates so that a projection protruding from a portion near the upper edge of the display plate inserted between the holding plates can be loosely fitted into the notch. 4. The display plate holding device for a chair according to claim 1, 2 or 3, which is configured. 5. A method for fixing one holding plate to a base,
3. The display plate holding device for a chair according to claim 1, wherein the other holding plate is hinged so as to be able to approach and separate from the one holding plate.