JP3176800U - Assembly chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembly chair that has a relatively simple joint shape, can maintain a sufficient strength without selecting a material, and can be easily assembled and disassembled.
An assembly chair has an insertion groove formed by cutting out from a front side to a predetermined position in a substantially horizontal straight line, a pair of side plates standing in parallel to each other, and both side edges of an upper surface and a lower surface Each having a fitting groove formed in each of the portions, the fitting groove being inserted into the insertion groove, and a seating surface plate laid between the side plates and a rear portion protruding from the side plate. A back plate having a dovetail groove inserted into an ant tenon formed on the front side of the back support portion.
[Selection] Figure 1

Description

  The present invention relates to an assembly chair configured by combining a plurality of plate members, and particularly to an assembly chair that can be assembled and disassembled.

  Conventionally, various assembly chairs that can be disassembled to reduce the volume when not needed and facilitate assembly and disassembly have been proposed in order to improve storage and transportability when not needed. As an example of such an assembly chair, a tenon is provided at the longitudinal end of a support plate made of square wood, a wedge insertion hole is provided at the tip of the tenon, and another support member is desired to receive and connect the support plate vertically. A plurality of side plates and leg plates such as side plates and leg plates are provided with a hole to pass through the flange, and then each wedge is inserted into the wedge insertion hole at the tip of the flange to firmly connect the wooden plates. The assembly chair which was made is mentioned (patent document 1).

  An assembly chair in which the backrest and the seat can be assembled and disassembled, and the backrest and the seat are configured such that the legs of the seat are connected to the upper and lower fixing crosspieces of the backrest. The lower fixing beam provided on the backrest member is engaged between the upper fixing beam and the lower fixing beam provided on the seat member, and at the same time, the upper surface of the leg member of the seat member is placed on the back member. An assembly chair configured to be brought into contact with and coupled to the lower surface of the upper fixing member provided in (Patent Document 2).

JP 2006-20922 A JP 2001-37573 A

  However, in the case of a conventional assembly chair, in order to make the strength of the joint portion sufficient, the shape of the joint portion becomes complicated, which makes assembly work difficult and reduces the processing cost. There is a problem of getting higher. On the other hand, in the joint part of a simple shape, the strength of the joint part cannot be made sufficient, and for example, it cannot be adopted for a long chair where a large number of people sit.

  Accordingly, an object of the present invention is to provide an assembly chair that has a relatively simple joint shape, can maintain a sufficient strength without selecting a material, and can be easily assembled and disassembled.

  The assembly chair according to claim 1 has an insertion groove formed by cutting out from a front side to a predetermined position in a substantially horizontal linear shape, a pair of side plates standing in parallel to each other, and an upper surface and a lower surface It has fitting grooves respectively formed at both side end portions, and is formed by inserting the fitting groove into the insertion groove and projecting upward at a rear portion of the side plate and a seating surface plate laid between the side plates. A back plate having a dovetail groove inserted into an ant tenon formed on the front side of the backrest support portion.

  The assembly chair according to claim 2, wherein a backrest fixing hole into which a backrest fixing plug can be inserted when the dovetail tenon and the dovetail groove are engaged with each other on the backrest support portion and the back plate. Is formed.

  The assembly chair according to claim 3, wherein the side surface plate and the seat surface plate are formed with a seat surface fixing hole into which a seat surface fixing plug can be inserted when the fitting groove is inserted into the insertion groove. It is characterized by being.

  According to the assembly chair of claim 1, since the fitting groove is inserted into the insertion groove provided in the horizontal direction on the pair of side plates to be erected and the seating surface plate is installed between the side surface plates, The applied vertical load can be reliably supported by the side plate. In addition, since the dovetail formed on the back plate is extrapolated to the ant tenon formed on the front side of the back support portion formed to protrude upward at the rear part of the side plate, and the back plate is fixed, Even if the seated person leans against the back plate, the load is only applied in the direction in which the side plate is pressed against the back plate, so that the back plate can be securely fixed to the side plate. As described above, even with a relatively simple joint shape, sufficient strength can be maintained, and assembly and disassembly can be facilitated.

  According to the assembly chair of claim 2, when the ant tenon and the ant groove are engaged with each other, a backrest fixing hole is formed, and the back plate is moved upward by inserting a backrest fixing plug into the backrest fixing hole. When a load to be pulled out is applied, it is possible to prevent the back plate from coming off from the side plate.

  According to the assembly chair of claim 3, when a load is applied in a direction in which the seat surface plate is pulled forward from the side surface plate by inserting the seat surface fixing plug into the seat surface fixing hole, the seat surface plate is removed from the side surface plate. It can be prevented from coming off.

The front view and side view of an assembly chair. The perspective view of an assembly chair. The figure which shows each structure of the state which disassembled the assembly chair. The partially omitted expansion perspective view seen from the back side of the back board explaining the joined part of a back board and a backrest support part. FIG. 6 is a partially omitted enlarged cross-sectional view illustrating a state in which a fitting groove is fitted in an insertion groove.

  Hereinafter, the best embodiment of the assembly chair 1 of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the assembly chair 1 includes a pair of side plates 2 erected substantially parallel to each other, a seat surface plate 3 that is installed on the pair of side plates 2 to form a seat surface, and a pair of side plates 2 And a back plate 4 that is installed on the side plate 2 and forms a backrest.

  As shown in FIG. 3, the side plate 2 is a pair of wooden plates that are erected substantially in parallel with a space therebetween. The side plate 2 is a single cedar plate having a thickness of 50 mm, for example. The side plate 2 has a substantially rectangular main body portion 21 having a length in the front-rear direction of 450 mm and a height of 545 mm, and a backrest support portion 22 that protrudes 200 mm upward from the rear portion of the upper surface of the main body portion 21. Yes. The backrest support portion 22 is formed such that the rear end face is vertically formed, the front end face is inclined so that the length of the lower end in the front-rear direction is 100 mm, and the upper end is 60 mm. Further, the front and rear end portions on the lower side of the main body portion 21 protrude to form leg portions 23. In the present embodiment, the front is “front” and the rear is “rear” as viewed from the person sitting on the assembly chair 1.

  The front end face of the backrest support part 22 is cut out at both edges from the upper end to form an ant tenon 24. The ant tenon 24 is formed in a trapezoidal cross section that expands toward the front. The length of the ant tenon 24 is shorter than the vertical width of the back plate 4. At the middle position in the length direction of the ant tenon 24, a backrest fixing hole half 5a cut out in the horizontal direction is provided. The backrest fixing hole half 5a is formed in a groove shape. The back plate 4 also has a backrest fixing hole half 5b. The dovetail groove 41 of the back plate 4 is extrapolated to the ant tenon 24 of the back support portion 22 so that the back plate 4 is supported on the back support portion 22. When the backrest fixing hole halves 5a and 5b are combined, the backrest fixing hole 5 into which the backrest fixing plug 6 can be inserted is formed.

  In addition, the side plate 2 is formed with an insertion groove 25 opened forward, which is formed by cutting out a predetermined horizontal position from the front end face to a predetermined position. The insertion groove 25 is cut out to 330 mm from the front end face, and the vertical width is 30 mm. On the side plate 2, a horizontal groove-shaped seating surface fixing hole half 7 a that is orthogonal to the length direction of the insertion groove 25 is formed on the lower surface side of the intermediate position in the length direction of the insertion groove 25. The seat surface plate 3 also has a seat surface fixing hole half 7b. When the seat surface plate 3 is inserted and the seat surface plate 3 is fixed to the side surface plate 2, the seat surface fixing hole halves 7a and 7b are formed. By combining them together, a seat surface fixing hole 7 into which the seat surface fixing plug 8 can be inserted is formed.

  The front end of the insertion groove 25 is formed 200 mm below the upper surface of the main body 21 and 300 mm above the lower surface. By forming the insertion groove 25 at least 200 mm or more below the upper surface of the main body 21, it is possible to suppress splitting even when the side plate 2 is wood, and when the assembly chair 1 is assembled, The upper surface of the main body 21 that is 200 mm or more higher than the seating surface can be used as an armrest. In addition, the dimension shape of the side surface board 2 is not limited to the above-mentioned thing, A suitable dimension shape can be used in the range which can exhibit the function as a chair. In addition, the “predetermined position” in the present invention is a position where the rear end portion of the seating surface plate 3 inserted into the insertion groove 25 is disposed, and therefore any position as long as it does not interfere with the seating of the seated person. Also good.

  In the present invention, “substantially horizontal” means that the inclination with respect to the horizontal is within 10 degrees, for example. The insertion groove 25 is preferably inclined downwardly toward the rear within the range of “substantially horizontal”. If comprised in this way, since the insertion groove | channel 25 will incline in the insertion direction of the seat surface board 3 when inserting the seat surface board 3, it is easy to insert and it is hard to remove | deviate.

  As shown in FIGS. 3 and 5, the seat surface plate 3 is a single plate of rectangular cedar having a thickness of 45 mm, a length in the front-rear direction of 400 mm, and a length in the horizontal direction of 2000 mm. A fitting groove 31 having a length of 330 mm, a depth of 7.5 mm, and a width of 50 mm is formed at a position 50 mm inward from the side edges on both sides of the seat plate 3. . The fitting grooves 31 are provided on the upper surface and the lower surface of the seating surface plate 3, respectively. On the lower surface of the seat surface plate 3, a horizontal groove-shaped seat surface fixing hole half 7 b that is perpendicular to the length direction of the fitting groove 31 is located at an intermediate position in the length direction of the fitting groove 31 formed on the lower surface. Is formed. When the seat surface plate 3 is inserted and the seat surface plate 3 is fixed to the side surface plate 2, the seat surface fixing hole half body 7a of the side surface plate 2 and the seat surface fixing hole half body 7b of the seat surface plate 3 are combined with each other. A seat surface fixing hole 7 into which the surface fixing plug 8 can be inserted is formed. In addition, the dimension shape of the seat surface board 3 is not limited to the above-mentioned thing, A suitable dimension shape can be used in the range which can exhibit the function as a chair.

  The back plate 4 is a single plate of rectangular cedar having a thickness of 45 mm, a vertical length of 150 mm, and a horizontal length of 2000 mm. On the rear surface of the back plate 4, as shown in FIG. 4, dovetail grooves for extrapolating the dovetails 24 of the backrest support portion 22 in the vertical direction at positions 50 mm inward from the side edges on both sides of the seat plate 3. 41 is provided. A backrest fixing hole half 5b is provided at a middle position in the length direction of the dovetail 41 of the back plate 4 by cutting the back surface of the back plate 4 horizontally from the side end. The backrest fixing hole half 5b is formed in a groove shape. When the dovetail groove 41 of the back plate 4 is extrapolated to the ant tenon 24 of the back support portion 22 and the back plate 4 is fixed to the back support portion 22, the back fixing holes of the back plate 4 and the back support portion 22 are fixed. The half bodies 5a and 5b are combined to form a backrest fixing hole 5 into which the backrest fixing plug 6 can be inserted. In addition, the dimension shape of the backplate 4 is not limited to the above-mentioned thing, A suitable dimension shape can be used in the range which can exhibit the function as a chair.

  The material of the side plate 2, the seat plate 3, and the back plate 4 is not limited to cedar, but may be other materials such as other wood, resin material, metal material, etc. The side plate 2, the seat plate 3, and the back plate 4 may be formed by combining the above different materials.

  When assembling the assembly chair 1, as shown in FIG. 3, the pair of side plates 2 are erected in parallel at a distance of 1800 mm from each other. Then, the fitting groove 31 of the seating surface plate 3 is inserted into the insertion groove 25 of the pair of side surface plates 2, and the seating surface plate 3 is installed between the side surface plates 2. Then, the seat surface fixing plug 8 is inserted into the seat surface fixing hole 7 so that the seat surface plate 3 does not come out of the insertion groove 25 of the side surface plate 2.

  Next, the dovetail groove 41 formed on the rear surface of the back plate 4 is extrapolated to the ant tenon 24 formed on the front end surface of the back support portion 22. Since the ant tenon 24 of the back support 22 is shorter than the vertical length of the back plate 4, the back plate 4 protrudes slightly above the upper end of the back support 22. Then, the backrest fixing plug 6 is inserted into the backrest fixing hole 5 to complete the assembly chair 1.

  As described above, the assembly chair 1 of the present embodiment supports the vertical load applied to the seating surface plate 3 by the pair of side plates 2 erected in parallel with each other, so that it can be reliably supported. A dovetail groove 41 formed on the back plate 4 is extrapolated to an ant tenon 24 formed on the front side of the back support portion 22 formed to protrude upward at the rear portion of the side plate 2, and the back plate 4 is fixed. Therefore, even if the seated person leans against the back plate 4, the load is only applied in the direction in which the side plate 2 is pressed against the back plate 4, so that the back plate 4 is securely fixed to the side plate 2. be able to.

  Further, by inserting the backrest fixing plug 6 into the backrest fixing hole 5, it is possible to prevent the back plate 4 from being detached from the side plate 2 when a load for pulling the back plate 4 upward is applied. By inserting the seat surface fixing plug 8 into the surface fixing hole 7, it is possible to prevent the seat surface plate 3 from being detached from the side surface plate 2 when a load is applied in the direction of pulling the seat surface plate 3 forward from the side surface plate 2. be able to.

  Needless to say, the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The assembly chair 1 according to the present invention can be suitably used as an assembly chair 1 such as a chaise longue.

DESCRIPTION OF SYMBOLS 1 Assembly chair 2 Side plate 3 Seat surface plate 4 Back plate 5 Backrest fixing hole 6 Backrest fixing plug 7 Seating surface fixing hole 8 Seating surface fixing plug 22 Backrest support part 24 Ant tenon 31 Fitting groove 41 Ant groove

Claims (3)

A pair of side plates having an insertion groove formed by cutting out from a front side to a predetermined position in a substantially horizontal linear shape, and standing upright substantially parallel to each other;
Having a fitting groove formed on each of both end portions of the upper surface and the lower surface, inserting the fitting groove into the insertion groove, and a seating surface plate constructed between the side plates;
A back plate on which a dovetail groove is formed which is extrapolated to a dovetail formed on the front end surface of a back support portion formed to protrude upward at the rear portion of the side plate;
An assembly chair characterized by comprising:   The backrest support part and the back plate are formed with a backrest fixing hole into which a backrest fixing plug can be inserted when the ant tenon and the dovetail groove are engaged with each other. The assembly chair according to Item 1.   2. The seating surface fixing hole is formed in the side plate and the seating surface plate so that a seating surface fixing plug can be inserted when the fitting groove is inserted into the insertion groove. Or the assembly chair of Claim 2.

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