JP2503435Y2 - Stacking chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a stacking chair that is used in a hall or the like and can be compactly stacked during transportation or storage.

[Prior Art] Conventionally, as a chair of this type, a front rod, an upper rod, a rear rod, and a reinforcing rod connecting the middle of the front and rear leg rods,
A front leg rod and a rear leg rod are provided with a pair of leg members configured to open downward, a seat member is mounted between the both leg members, and a reinforcing rod of the upper chair is attached to an upper rod of the leg member of the lower chair. It is known that a plurality of chairs can be stacked so as to overlap with each other. In such a stacking chair, when the chairs are stacked, or when the chairs are transported in the stacked state, in order to prevent the superposed surfaces of the upper rod and the reinforcing rod from rubbing against each other and being damaged,
Protective covers made of synthetic resin are attached to the front and rear of the reinforcing rod.

[Problems to be Solved by the Invention] However, a conventional stacking chair having protective covers attached to the front and rear positions of the reinforcing rod has a bad appearance because the uneven portion is partially formed on the outer periphery of the reinforcing rod. The bulging of the protective cover is an obstacle when wiping off dust etc. adhering to the leg members, and when the chairs are transported in a stacked state, the rear leg rods and the outer surface of the lower seat member and the upper seat The inner surface of the rear leg rod of the chair is in contact with and easily damaged.
However, the damage received on the rear surface of the rear leg rod and the outer surface of the seat member is visually recognizable from the outside, so that there is a problem that the external appearance is significantly impaired.

An object of the present invention is to provide a stacking chair in which the stacked state is stable and the damage to the leg member and the seat member described above can be avoided.

[Means for Solving the Problem] The present invention has taken the following means in order to achieve the above-mentioned object. That is, the stacking chair according to the present invention comprises a front leg rod, an upper rod, a rear leg rod, and a reinforcing rod that connects the middle of the front and rear leg rods, and the front leg rod and the rear leg rod are directed downward. It is possible to stack a plurality of chairs so that the pair of left and right leg members formed so as to open are provided, a seat member is mounted between the leg members, and the upper rod of the leg member of the lower chair overlaps the reinforcing rod of the upper chair. It is possible to form a plate-shaped first protection member continuously extending in the longitudinal direction on the lower surface of the reinforcing rod, and on the front surface of the rear leg rod below the mounting position of the reinforcing rod. A protective piece that integrally extends from the upper side edge of the plate piece to the inner surface of the rear leg rod without a fastener, and that has a plate piece that extends continuously in the longitudinal direction. 2 In front of the protective member,
A third protective member is attached to each of the lower ends of the rear leg rods.

As a preferable attachment mode of the second protection member, there may be mentioned one that is attached to the front surface of the rear leg rod by engagement of the attachment hole and the locking projection.

In order to further stabilize the stacking state, it is preferable to extend a third protection member on the rear leg rod side with a contact piece that overlaps the lower front surface of the rear leg rod.

[Operation] When stacking the stacking chairs of the present invention,
As in the conventional method, the reinforcing rod of the upper chair is superposed on the upper rod of the leg member of the lower chair, but the first protection member is provided between the upper rod and the reinforcing rod, and The front plate pieces of the second protective member are respectively interposed between the rear surface of the rear leg rod and the front surface of the rear leg rod of the upper chair, and the back of the upper chair is attached to the front of the back of the lower chair. The seat plates overlap each other in the vertical direction, and the protection piece of the second protection member is interposed between the outer surface of the rear portion of the seat member of the lower chair and the inner surface of the rear leg rod of the upper chair. There is no direct contact between the leg members and between the leg members and the seat member, and the chair is transported in a state where the chairs are vertically stacked.

In this chair, however, the first protective member mounted on the lower surface of the reinforcing rod is a plate-like member that continuously extends in the longitudinal direction, so compared to the case where a plurality of first protective members are provided intermittently. Not only is the appearance good, but the first protective member does not get in the way when the dust and the like adhering to the leg members are wiped off. Furthermore, when carrying chairs in a stacked state,
Even if the stacked chairs try to swing back and forth, between the rear of the lower leg of the lower chair and the front of the rear leg of the upper chair, a second leg provided on the rear leg of the upper chair is provided. Since the plate piece of the protection member is interposed, the rear leg rods are prevented from directly colliding with each other and being damaged. Since this plate piece also extends continuously in the longitudinal direction, it is unlikely to interfere with cleaning or the like and has excellent support stability. Even if the stacked chairs try to move from side to side, the protective piece of the second protective member provided on the rear leg rod is provided between the outer surface of the seat member of the lower stage chair and the rear leg rod of the upper chair. Will intervene. Therefore, it is possible to effectively prevent the leg rod from directly colliding with the outer side surface of the seat member and damaging the outer side surface thereafter.

Moreover, since this protective piece is superposed on the inner side surface of the rear leg rod without interposing a fastener, the presence of this protective piece does not specialize the attachment mode of the second protective member. It is possible to attach the plate piece only in the same manner as when it is attached to the rear leg rod. And this protective piece
Since it extends from the upper end of the plate piece, its vertical dimension does not have any effect even if the plate piece is long, and the second protective member can be made of as little material as possible. It can be manufactured.

Also, since a third protective member is provided at the lower ends of the front and rear leg rods, when stacking the upper chair over the lower chair, the tip of the upper rod of the upper chair collides with the lower chair. Can be prevented from being damaged. Further, by providing a third protection member of the rear leg rod with an abutment that is attached to the lower front portion of the rear leg rod, the abutment and the front plate of the second protective member are attached to the rear of the lower chair. It is possible to make contact with the upper and lower positions of the leg rods, effectively prevent the stacked chairs from swinging back and forth, and further promote the stabilization of the stacking state.

[Embodiment] FIG. 1 is a general perspective view of a stacking chair according to the present invention. Reference numerals 1 and 1 are downward pipes formed by bending a rectangular pipe formed by extrusion molding of aluminum into a downward U-shape. A pair of left and right legs integrally formed with a front leg rod 2 which is inclined toward the bottom, an upper rod 3 which is curved from the upper end thereof and extends horizontally, and a rear leg rod 4 which is curved from the rear end thereof and is inclined downwards and backwards greatly. A member is shown, and a reinforcing rod 5 extending in parallel with the upper rod 3 is installed at an intermediate position between the front leg rod 2 and the rear leg rod 4 by joining the front and rear ends thereof by welding or the like. As shown in FIG. 6, the reinforcing rod 5 has a pair of L-shaped cross sections in which the left and right side plates of the rectangular section having a rectangular cross section are extended downward and the lower ends thereof are bent inward at right angles. Which are made of, for example, an aluminum extruded material in which the ribs 6, 6 are integrally formed,
The ribs 6, 6 and the lower surface of the angular portion form an insertion groove 7 that opens at the front and rear end surfaces and the central portion of the lower surface. Mounting holes 8, 9 and 10 are formed in the front and inner surfaces of the rear leg rod 4 which are lower than the mounting position of the reinforcing rod 5 so as to face each other, and a pair of left and right leg members configured in this manner are provided. 1, 1 are connected by connecting rods 11, 12. 13 is leg member 1, 1
Similarly to the above, for example, a horizontal seat portion 14 formed by bending a square pipe made of an extruded aluminum material and a back portion 15 which is inclined rearward from its rear end and stand upright are integrally formed.
2 shows a seat member in which a seat plate 16 is attached to the back portion 15 and a back support plate 17 is attached to the back portion 15. By mounting the seat member 13 on the leg members 1 and 1 so as to face each other,
The chair body 18 is configured. Reference numeral 19 denotes a first protective member, which is an extruded product of synthetic resin and is attached over substantially the entire length of the lower surface of the reinforcing rod 5 excluding the welded portions at both ends. The first protective member 19 is the lower surface of the reinforcing rod 5. Protective plate 20 with width approximately equal to
A pair of inverted L-shaped locks that extend along the entire length in the longitudinal direction at the center of the upper surface of the and are inserted from the insertion groove 7 that opens at the lower end of the reinforcing rod 5 and lock with the ribs 6, 6. Piece 2
1 and 21 are arranged in parallel. Reference numeral 22 denotes a second protective member which is an integrally molded product of synthetic resin adhered to the inner surface of the rear leg rod 4 located below the reinforcing rod 5.
Is provided with a vertical rectangular plate piece 23 that overlaps the front surface of the rear leg rod 4 below the mounting position of the reinforcing rod, and the inner side of the rear leg rod 4 is attached to the upper side edge of the plate piece 23. A protective piece 24 is provided at a right angle so as to abut the outer surface at the rear of the seat 14 of the seat member 13 of the upper chair when the side surfaces are stacked and the chairs 18b are stacked. Locking projections 25 and 26 having a conical head and locking to the mounting holes 8 and 9 are projected. Reference numeral 28 denotes a third protective member made of synthetic resin attached to the lower ends of the front and rear leg rods 2 and 4, and the third protective member 28 covers the lower end surfaces of the front and rear leg rods 2 and 4. ,And,
On the upper surface of the piece 29 whose lower surface is inclined, the front and rear leg rods 2,
4 is integrally provided with a fitting piece 30 for fitting with the rear leg rod 4
On the third protection member 28 on the side, a contact piece 31 that abuts on the front surface of the rear leg rod 4 is extended upward, and the inner surface of the contact piece 31 is similar to the second protection member 22 in the mounting hole 10. Locking shaft that locks to
32 is projected, and the contact piece 31 of the third protection member 28 is the second
It has the same thickness as the plate piece 23 of the protection member 22.

When attaching the second protective member 22 to the rear leg rod 4, the plate piece 23 is superposed on the front surface of the rear leg rod 4 and the protective piece 24 is superposed on the inner side surface of the rear leg rod 4. , Mounting holes 8, 9
The locking convex portions 25, 25 are respectively locked and attached to the above, and in this way, the second protective pieces are attached to the left and right rear leg rods 4, respectively.

When stacking the stacking chairs according to the present invention, as in the conventional case, as shown in FIG. 7, the upper rod 3 of the leg members 1 and 1 of the lower chair 18a is reinforced with the reinforcing rod of the upper chair 18b. 5 is polymerized, but in the present invention,
A first protective member 19 is provided between the upper rod 3 and the reinforcing rod 5,
A second protective member 22 and a third protective member 28 are provided between the rear surface of the rear leg rod 4 of the lower chair 18a and the front surface of the rear leg rod 4 of the upper chair 18b.
Along with each of the pieces 31, the back of the backrest 17 of the upper chair 18b is superposed on the front side of the backrest 17 of the lower chair 18a, and the seatboards 16 are stacked in the vertical direction. Chair
The protection piece 24 of the second protection member 22 provided on the rear leg rod 4 of the 18a comes into contact with the rear outer surface of the seat 14 of the lower chair 18a to directly contact the leg members 1, 1 and the leg member 13. Without
The chairs 18a and 18b are transported in a state in which they are vertically stacked.

In addition, in the above embodiment, the reinforcing rod 5 is formed in a square pipe shape, and the insertion groove 7 is formed in the lower surface thereof, and the first protection member is formed in the insertion groove 7.
Although the case where the locking pieces 21, 21 of 19 are inserted and locked is illustrated, it may be fixed to the lower surface of the reinforcing rod 5 by locking the locking hole and the locking projection or by bonding. Of course, the contact pieces 31 of the second protection member 22 and the third protection member 28 may be fixedly attached to the front surfaces of the rear leg rods 4 and 4 by adhesion.

[Advantage of Invention] As described above, according to the present invention, the lower chair and the upper chair have the overlapping surface of the upper rod of the leg member and the reinforcing rod, the overlapping surface of the rear leg rods of the leg member, Further, since the protective members are respectively interposed between the inner surface of the rear leg rod of the leg member and the outer surface of the seat member, there is no possibility that the metal parts come into direct contact with each other and the chair is not damaged. In particular, according to the present invention, the second
Since the protective piece of the protective member will be interposed between the inner surface of the rear leg rod of the upper chair and the outer surface of the seat member of the lower chair, the seat member disposed between the left and right leg members It has a special effect that it is possible to surely prevent the outer side surface from being scratched. Therefore, it is possible to more effectively prevent the visible portion from being scratched and impairing the appearance.

Moreover, the first protective member is a plate-shaped member that extends continuously in the longitudinal direction of the reinforcing rod, and the plate piece of the second protective member is a plate-shaped member that extends continuously in the longitudinal direction of the rear leg rod. Therefore, these protective members do not interfere with cleaning and also have excellent support stability.

Further, since the second protective member has only its plate piece fixed to the front surface of the rear leg rod, and the protective piece is superposed on the inner surface of the rear leg rod without a fastener, it is a simple plate. It can be mounted on the rear leg rod in the same manner as wearing a protective member in the shape of, for example, when mounting from a special direction such as when both the plate piece and the protective piece are provided with fasteners. There will be no compulsion. Moreover, since this protection piece is extended only from the upper part of the plate piece, even if the plate piece is continuous and long in order to increase the support stability, the protection piece is not attached to the outside of the seat member. It is possible to keep the side surface short enough to protect it. For example, Japanese Patent Application No. 1-67346 (No. 3-7746 No. Kaihei), in which the plate piece and the protective piece have the same length. It is possible to use less material than a protection member having an L-shaped cross section as described above.

Further, since the third protection member is provided at the lower end of the leg rod, the tip of the leg rod does not damage the lower chair. Moreover, if the third protection member of the rear leg rod is provided with the abutment piece, the abutment piece and the front plate piece of the second protection member are interposed between the lower rear leg rod and the upper rear leg rod. It will be. Therefore, it is possible to more reliably prevent or suppress the stacked chairs from swinging back and forth, and it is possible to further stabilize the stacking state.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG.
2 is a side view, FIG. 3 is a perspective view of a second protection member, and FIG.
FIG. 5 is an enlarged vertical sectional view of the rear leg rod with the second and third protective members attached, FIG. 5 is an enlarged transverse sectional view of the rear leg rod with the second protective member attached, and FIG. 1 is an enlarged vertical cross-sectional view of the reinforcing rod with the protective member attached, FIG. 7 is a side view of the stacked state, and FIG. 8 is a rear view of a main part of the stacked state. 1 ... Leg member, 2 ... Front leg rod, 3 ... Upper rod, 4 ... Rear leg rod, 5 ... Reinforcing rod, 8, 9, 10 ... Mounting hole, 13 ... Seat member, 14 ... Seat, 15 ... Back, 18 ... Chair body, 19 ...
… First protection member, 22 …… Second protection member, 23 …… Plate piece, 24
...... Protective piece, 25, 26, 27 …… Locking convex part, 28 …… 3rd protective member, 31 …… This piece

Claims (3)

(57) [Scope of utility model registration request] Claims: 1. A left and right leg comprising a front leg rod, an upper rod, a rear leg rod, and a reinforcing rod connecting the middle of the front and rear leg rods, the front leg rod and the rear leg rod being formed to open downward. A stacking chair that has a pair of leg members, and a seat member can be mounted between the leg members to stack a plurality of chairs so that the upper rod of the leg member of the lower chair is superposed with the reinforcing rod of the upper chair. A plate-shaped first protection member continuously extending in the longitudinal direction on the lower surface of the reinforcing rod, and on the rear leg rod below the mounting position of the reinforcing rod, in the longitudinal direction overlapping the front surface thereof. A second protective member having a continuously extending plate piece, and integrally extending a protective piece from the upper side edge of the plate piece to the inner side surface of the rear leg rod without interposing a fastener. Further, a third protective member is attached to the lower ends of the front and rear leg rods, respectively. Ring for the chair. 2. The plate piece of the second protection member is mounted on the front surface of the rear leg rod by engaging the mounting hole and the locking projection.
Stacking chair as described. 3. The stacking chair according to claim 1, wherein the third protection member on the side of the rear leg rod is provided with a strip extending over the lower front surface of the rear leg rod.