JP7214347B2 - Fixture component and fixture manufacturing method - Google Patents

Description

The present invention relates to a fixture component and a fixture manufacturing method.

2. Description of the Related Art Conventionally, furniture constituent members are known in which a main body portion that receives a load from the outside and a functional portion constituent portion that has a function such as supporting accessories are integrally molded. For example, in Patent Document 1, the seat, backrest, and armrests of a chair as load bearing members are integrally formed to form a single member.

U.S. Patent Application Publication No. 2014/0354019

However, when the load bearing member is configured as a single member, it is difficult to meet various customer needs because there is only one variation of the load bearing member. For example, it is difficult to meet the need for load bearing members that do not have armrests.
On the other hand, inventory of both load bearing members without armrests and armrest components can increase management costs.

In view of the circumstances as described above, it is an object of the present invention to provide a fixture component and a fixture manufacturing method that can meet various customer needs while avoiding an increase in management costs.

A furniture-constituting member according to an aspect of the present invention is a furniture-constituting member that includes a main body that can receive a load from the outside, and that includes a functional part-constituting part connected to the main body, wherein the main body and the An indicating means for indicating a boundary separating the main body and the functional part-constituting part is provided between the functional part-constituting part and the main body part without removing the functional part-constituting part from the main body. and a first form in which the functional part constituting part is used as it is to make fixtures of the first specification, and at least the main body part common to the first form is used, and the instruction means is used as a cutting part from the main body part to the function It is configured to be able to select a second form that is a fixture of the second specification by excising at least a part of the part constituting part, and the main body part is a seat surface constituting part and a backrest constituting part. The body supporting surface forming part has a shape in which the seat surface forming part and the backrest forming part are connected to each other in a cross-sectional view orthogonal to the width direction of the chair, and the The indicating means is provided at a position spaced apart in at least one of the depth direction, width direction and height direction of the chair from a connection position of the seat surface structure portion and the backrest structure portion of the body support surface structure portion. In a cross-sectional view orthogonal to the depth direction, the seat surface forming portion has a concave shape in which the center portion in the width direction is located below the outer end portions in the width direction, and the backrest structure is formed. When viewed in cross section perpendicular to the height direction, the body-supporting surface-constituting portion has a concave shape in which the central portion in the width direction is positioned deeper than the outer end portions in the width direction. The surface-constituting portion and the backrest-constituting portion are integrally formed, and the body-supporting surface-constituting portion has a first cross-sectional view perpendicular to the width direction, a cross-sectional view perpendicular to the depth direction, and the height. It is characterized by being arcuate in each of a second cross-sectional view including a cross section perpendicular to the longitudinal direction .
A furniture-constituting member according to an aspect of the present invention is a furniture-constituting member that includes a main body that can receive a load from the outside, and that includes a functional part-constituting part connected to the main body, wherein the main body and the An indicating means for indicating a boundary separating the main body and the functional part-constituting part is provided between the functional part-constituting part and the main body part without removing the functional part-constituting part from the main body. and a first form in which the functional part constituting part is used as it is to make fixtures of the first specification, and at least the main body part common to the first form is used, and the instruction means is used as a cutting part from the main body part to the function A second form in which fixtures of the second specification are made by excising at least a part of the part constituting part, and a second form can be selected, and the main body part and the function part constituting part are integrated with each other It is characterized in that it has a shell-like shape, and the pointing means is a recess or a protrusion.

According to this configuration, since the instruction means is provided at the boundary separating the main body and the functional part constituting part, the functional part constituting part can be excised from the main body along the instruction means as necessary. can. That is, by inventorying only the fixture component parts, in the first form, it is a fixture of the first specification that includes both the main body part and the functional part component part, and in the second form, the second form that includes at least the main body part It can be a fixture with the specifications of Therefore, it is possible to meet various customer needs while avoiding an increase in management costs.

In one aspect of the present invention, the main body includes a body support surface forming portion having a seat surface forming portion and a backrest forming portion, and the body support surface forming portion is a cross-sectional view perpendicular to the width direction of the chair. , the seat surface forming portion and the backrest forming portion are connected to each other; , may be provided at positions spaced apart in at least one of the depth direction, width direction and height direction of the chair.
According to this configuration, in a state in which the connecting portion between the seat surface forming portion and the backrest forming portion, which is essential for maintaining the rigidity of the body support surface forming portion, is secured, the seat can function along the instruction means as necessary. A site component can be excised. Therefore, in the chair component having the seat surface component and the backrest component, it is possible to meet various customer needs while avoiding an increase in management costs.

In one aspect of the present invention, the seat surface forming portion has a concave shape in which the center portion in the width direction is positioned below the outer end portions in the width direction in a cross-sectional view perpendicular to the depth direction, The backrest-constituting portion has a concave shape in which the central portion in the width direction is positioned further back than the outer end portions in the width direction in a cross-sectional view perpendicular to the height direction, and the body-supporting surface-constituting portion The seat surface forming portion and the backrest forming portion may be integrally formed in a row.
According to this configuration, the chair is robust against not only the load in the depth direction of the chair, but also the load in the width direction of the chair. Therefore, even when the functional part forming part is spaced far from the body supporting surface forming part, it is possible to suppress the decrease in the rigidity of the whole.

In one aspect of the present invention, the body support surface forming portion includes a first cross-sectional view perpendicular to the width direction and a second cross-sectional view including a cross section perpendicular to the depth direction and a cross section perpendicular to the height direction. At least one of may be arcuate.
According to this configuration, since there is no seam between the parts that support different parts of the body, even if the load concentrates on a predetermined part of the body support surface forming part, the load will be transferred to the base of the part. The overall stiffness can be improved because the moment is not concentrated but distributed throughout.

In one aspect of the present invention, the connecting portion between the seat surface forming portion and the backrest forming portion in the body support surface forming portion has a central portion extending in the width direction in a cross-sectional view orthogonal to the depth direction. In a cross-sectional view orthogonal to the height direction, the center portion in the width direction of the concave portion is positioned deeper than the outer end portion in the width direction. It may be shaped.
According to this configuration, the connecting portion between the seat surface forming portion and the backrest forming portion (the portion ensuring the rigidity of the body supporting surface forming portion), which is essential for maintaining the rigidity of the body supporting surface forming portion, is the chair. A non-linear cross-section is formed both in a cross-sectional view perpendicular to the depth direction of the chair and in a cross-sectional view perpendicular to the height direction of the chair. Therefore, even when the functional part forming part is spaced far from the body supporting surface forming part, it is possible to suppress the decrease in the rigidity of the whole.

In one aspect of the present invention, the functional part forming portion includes an armrest connecting portion extending outward in the width direction from an imaginary downward extension line of the upper outer ridgeline of the body supporting surface forming portion, The indicating means may comprise an armrest connecting boundary indicating portion arranged along the imaginary extension line.
According to this configuration, the armrest connecting boundary indicating portion is arranged along the imaginary extension line downward of the ridgeline of the upper outer side of the body support surface forming portion, so that the armrest can be selected in order to select a form having no armrest. It is possible to prevent a structural part (for example, a boss or the like) required for connection with the armrest from remaining on the body support surface forming part when the connecting part is cut off. Therefore, various customer needs can be met without impairing the design of the chair component.

In one aspect of the present invention, the functional part forming portion includes a head supporting surface forming portion that extends above a ridgeline of the upper end portion of the body supporting surface forming portion, and the indicating means is the body supporting surface forming portion. A head support surface boundary indicator may be provided along the ridgeline of the upper end of the component.
According to this configuration, the head supporting surface boundary indicating portion is arranged along the ridgeline of the upper end portion of the body supporting surface forming portion, so that the body can be supported along the head supporting surface boundary indicating portion as necessary. The head support surface formation portion can be cut from the surface formation portion. In other words, while basically having both the body support surface forming part and the head supporting surface forming part, it is possible to have a structure having only the body support surface forming part, if necessary. Therefore, in the chair component provided with the head support surface component, it is possible to meet various customer needs while avoiding an increase in management costs.

In one aspect of the present invention, the pointing means may include an arc-shaped pointing portion that forms an arc at a corner portion of the body-supporting surface-constituting portion.
According to this configuration, the body supporting surface forming portion having rounded corners can be obtained by cutting off the functional portion forming portion from the body supporting surface forming portion along the arc-shaped pointing portion as necessary. Manufacturing efficiency can be improved without requiring chamfering for rounding.

In one aspect of the present invention, the pointing means may be a concave portion or a convex portion.
According to this configuration, when cutting off the functional part forming part from the main body along the indicating means as necessary, the cutting can be easily performed along the recessed part or the convex part.

In one aspect of the present invention, guide means extending along the boundary may be provided between the main body portion and the functional portion forming portion.
According to this configuration, when excising the functional part constituting portion from the main body along the indicating means as necessary, it can be easily excised along the guide means.

A fixture manufacturing method according to an aspect of the present invention is a fixture manufacturing method for manufacturing fixtures with different specifications using a fixture-constituting member having a body portion capable of receiving a load from the outside, wherein the fixture-constituting member comprises the A functional part constituting part is provided continuously with the main body part, and an indicator means is provided between the main body part and the functional part constituting part to indicate a boundary dividing the main body part and the functional part constituting part. , a first step of manufacturing fixtures of the first specification using the main body and the functional part constituting part as they are without cutting the functional part constituting part from the main body; a second step of manufacturing fixtures of the second specification by using at least the main body and cutting at least a part of the functional part constituting part from the main body using the indicating means as a cutting part; A body supporting surface forming part having a seat forming part and a backrest forming part is provided as the main body part, and the body supporting surface forming part is configured to be the seat surface forming part and the seat surface forming part in a cross-sectional view orthogonal to the width direction of the chair. The backrest forming part is connected to each other, and the indicating means is configured to indicate the depth direction and width of the chair from the connection position of the seat surface forming part and the backrest forming part in the body support surface forming part. In a cross-sectional view orthogonal to the depth direction, the center portion in the width direction of the seat surface forming portion is located at a distance from the outer end portion in the width direction. In a cross-sectional view perpendicular to the height direction, the widthwise central portion of the backrest forming portion is positioned deeper than the widthwise outer end portion of the backrest forming portion. It has a concave shape, and the body support surface forming portion is formed by integrally connecting the seat surface forming portion and the backrest forming portion . A first cross-sectional view and a second cross-sectional view including a cross section orthogonal to the depth direction and a cross section orthogonal to the height direction are arcuate .
According to this method, since the instruction means is provided at the boundary separating the main body and the functional part-constituting part, the functional part-constituting part can be excised from the main body along the instruction means as necessary. can. That is, by inventorying only the fixture component parts, in the first process, fixtures of the first specification that include both the main body part and the functional part component part are used, and in the second process, the second It can be a fixture with the specifications of Therefore, it is possible to meet various customer needs while avoiding an increase in management costs.
A fixture manufacturing method according to an aspect of the present invention is a fixture manufacturing method for manufacturing fixtures with different specifications using a fixture-constituting member having a body portion capable of receiving a load from the outside, wherein the fixture-constituting member comprises the A functional part constituting part is provided continuously with the main body part, and an indicator means is provided between the main body part and the functional part constituting part to indicate a boundary dividing the main body part and the functional part constituting part. , a first step of manufacturing fixtures of the first specification using the main body and the functional part constituting part as they are without cutting the functional part constituting part from the main body; a second step of manufacturing fixtures of the second specification by using at least the main body and cutting at least a part of the functional part constituting part from the main body using the indicating means as a cutting part; The body portion and the functional portion forming portion are integrated with each other in a shell shape , and the pointing means is a concave portion or a convex portion.

Advantageous Effects of Invention According to the present invention, it is possible to provide a fixture component and a fixture manufacturing method that can meet various customer needs while avoiding an increase in management costs.

The perspective view of the chair which concerns on embodiment. The front view of the chair which concerns on embodiment. 1 is an exploded perspective view of a chair according to an embodiment; FIG. The right view of the chair which concerns on embodiment. The top view of the chair which concerns on embodiment. The front view of the chair lower part which concerns on embodiment. The left side view including the VII-VII cross section of FIG. FIG. 5 is a top view including the VIII-VIII section of FIG. 4; The perspective view of the outer shell right side part which concerns on embodiment. FIG. 5 is a front view including the XX section of FIG. 4; The perspective view of the armrest component which concerns on embodiment. The right side view including the XII-XII section of FIG. The right side view including the XIII-XIII cross section of FIG. The left side view including the XIV-XVI cross section of FIG. FIG. 5 is a top view including the XV-XV section of FIG. 4; The left side view including the XVI-XVI cross section of FIG. FIG. 8 is a top view including the XVII-XVII section of FIG. 7; The front view including the XVIII-XVIII section of FIG. FIG. 8 is a front view including the XIX-XIX section of FIG. 7; Explanatory drawing of an example of an operation|movement of the instruction|indication means which concerns on embodiment. Explanatory drawing of an example of an operation|movement of the instruction|indication means which concerns on embodiment. Explanatory drawing of an example of an operation|movement of the instruction|indication means which concerns on embodiment. Sectional drawing of the instruction|indication means which concerns on the modification of embodiment. FIG. 23(a) is a cross-sectional view showing an example in which the indicating means is a recess. FIG. 23(b) is a cross-sectional view showing an example in which the indicating means is a convex portion; The front view of the chair which concerns on the modification of embodiment. Fig. 14 is a right side view including a cross section corresponding to Fig. 13, showing an intermediate support member according to a modification of the embodiment; The perspective view of the chair which concerns on the modification of embodiment. The perspective view of the chair which concerns on the modification of embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same code|symbol is attached|subjected about the same structure. In the embodiments, as an example of fixtures, a chair provided with a top plate having a work surface facing upward on the side of the seat will be described. In the embodiment, the chair installation surface on which the chair is installed is an indoor flat floor surface.

[Chair 1]
As shown in FIG. 1, a chair 1 includes a load support structure 3 standing on a floor surface 2 (see FIG. 2), a seat surface forming member 4 having a seat surface portion 20 on which a seated person can sit, and a seat surface portion 20. and a component support member 5 that extends laterally of and is capable of supporting the top plate 6 (accessory) at the extended end portion 5a.

In the following description, the direction in which a seated person sitting on the seat surface portion 20 faces forward is referred to as "forward", and the direction opposite to the forward is referred to as "backward". In other words, the direction perpendicular to the plane of the paper shown in FIG. 2 is defined as the "front-rear direction" or the "depth direction of the chair 1". Also, the normal direction (vertical direction) of the floor surface 2 is defined as the "vertical direction" or the "height direction of the chair 1". Further, a direction orthogonal to each of the front-rear direction and the up-down direction is defined as the "left-right direction" or the "width direction of the chair 1". In the drawing, an arrow FR indicates the front, an arrow UP indicates the upper direction, and an arrow LH indicates the left direction.

[Load supporting structure 3]
As shown in FIG. 2 , the load support structure 3 includes legs 10 set on the floor surface 2 and support bases 15 attached to the tops of the legs 10 . In FIG. 2, illustration of the top plate 6 and the like is omitted.

As shown in FIG. 3, the leg portion 10 includes a leg body 11 in which a three-pronged (Y-shaped) connecting member is connected to an annular annular member, and a central portion of the leg body 11 (central portion of the connecting member). and a columnar pedestal 12 rising from the base.

The pedestal 12 includes an outer cylinder 12a fixed to the leg body 11 and an inner cylinder 12b located radially inside the outer cylinder 12a. The inner cylinder 12b is rotatably supported by the outer cylinder 12a about the axis of the pedestal 12. As shown in FIG. A support base 15 is fixedly supported at the upper end of the inner cylinder 12b. In addition, the pedestal 12 may be configured so as to be vertically expandable by incorporating a gas spring.

As shown in FIG. 2 , the support base 15 supports the first surface portion 32 of the seat surface forming member 4 from the floor surface 2 side. The first surface portion 32 is the lower surface portion of the seat surface forming member 4 . The support base 15 has a shape whose front-rear width and left-right width increase as it approaches the first surface portion 32 from the upper portion of the leg portion 10 . The support base 15 includes a second surface portion 16 facing the first surface portion 32 of the seat surface forming member 4 from the floor surface 2 side. The second surface portion 16 is the upper surface portion of the support base 15 . When viewed from above in FIG. 5, the support base 15 has a triangular shape that protrudes rearward.

[Seat structure member 4]
As shown in FIG. 1, the seat surface structure member 4 includes a seat surface portion 20 on which a seated person can sit, a backrest portion 21 extending upward from the rear end portion of the seat surface portion 20, and an upper end of the backrest portion 21. head support portion 22 extending upward from the seat surface portion 20;

In a cross-sectional view orthogonal to the width direction of the chair 1 (the cross-sectional view of FIG. 7 in which the main portion of the chair 1 is cut at the center in the width direction), the seat surface portion 20 and the backrest portion 21 are shaped to intersect each other. As viewed in cross section in FIG. 7, the seat surface forming member 4 has a J shape.

In a cross-sectional view perpendicular to the vertical direction (a cross-sectional view of FIG. 8 in which the backrest portion 21 of the chair 1 is cut along a plane parallel to the horizontal plane), the center portion in the width direction of the seat surface forming member 4 is the outer portion in the width direction. It has a concave shape that is located on the far side.

As shown in FIG. 1, a seat surface 20a is formed on the upper side of the seat surface portion 20 by arranging a cushion and an upholstery material.
A cushion and a skin material are arranged on the front side of the backrest portion 21 to form a backrest surface 21a.
It should be noted that the cushion and the skin material are not arranged on the upper surface of the seat surface portion 20 and the front side of the backrest portion 21, and the core material (the inner shell 30 shown in FIG. 3) is in direct contact with the body of the seated person. good too.

As viewed from above in FIG. 5, the head support portion 22 has an inverted U shape that covers the head of the seated person from the rear and from the left and right sides. The left and right side walls of the head support portion 22 function as sound insulation portions that block sounds from the outside. As shown in FIG. 1, a head support surface 22a is formed on the front side of the head support portion 22 by arranging a cushion and an upholstery material.

In the front view of FIG. 2, the armrest portion 23 has a box-like shape that widens in the left-right direction toward the upper side. As shown in FIG. 1, cushions and upholstery materials are arranged on the front side, the upper side, and the inner side in the width direction of the armrest portion 23 to form a load receiving surface 23a.
In FIG. 1, the surface (skin material) of the cushion is indicated by broken lines.

As shown in FIG. 3, the seat surface forming member 4 includes a core material (hereinafter also referred to as an “inner shell 30”) as a strength member that supports the load of the seated person, and an exterior that is arranged outside the inner shell 30. material (hereinafter also referred to as “outer shell 40”); In FIG. 3, only the right halves of the inner shell 30 and the outer shell 40 are shown, and illustration of the left halves is omitted.

The inner shell 30 includes an inner body 31 that forms a support for the seat surface portion 20, the backrest portion 21, and the head support portion 22 (see FIG. 1), and an armrest constituent member 35 that forms the armrest portion 23 (see FIG. 1). And prepare.

The outer shell 40 includes an outer body 41 that covers the inner body 31 from the outside, and an armrest cover member 45 that covers the armrest constituent member 35 from the outside.

The inner shell 30 has higher rigidity than the outer shell 40. - 特許庁The inner body 31 is formed thicker than the outer body 41 . The left and right side portions of the inner main body 31 and the outer main body 41 each have an arcuate outer shape that protrudes rearward and downward.

In cross-sectional view of FIG. 10, the armrest component 35 is L-shaped. The armrest constituent member 35 extends upward from the outer side portion of the inner main body 31 so as to be separated from the armrest cover member 45 in the width direction, and has a plate shape having a bent portion 35v that bends outward in the width direction from the extended end. ing.

The armrest constituent member 35 forms an upright portion 36 that rises from the outer side portion of the inner main body 31 so as to form a gap 35s with the inner side surface of the armrest cover member 45 in the width direction, and a bent portion 35v together with the upright portion 36. an outwardly extending portion 37 extending outward in the width direction from the upper end portion of the standing portion 36 so as to extend outward in the width direction from the front end portion of the standing portion 36; A front side extending portion 38 (see FIG. 12 , second outwardly extending portion) that continues to the front end portion and extends in a direction toward the outer side portion of the inner main body 31 . In FIG. 10, reference numeral 37h denotes an opening in the outwardly extending portion 37 which opens vertically so that the component support member 5 can be inserted therethrough.

In the cross-sectional view of FIG. 10, in the armrest component 35, the upright portion 36 and the outwardly extending portion 37 have a bent shape that intersects each other. In the embodiment, the standing portion 36 and the outwardly extending portion 37 have L-shapes that are substantially perpendicular to each other.
In the cross-sectional view of FIG. 10, in the outer shell 40, the outer main body 41 and the armrest cover member 45 have a curved shape that forms an arc shape that protrudes downward and continues to each other.
In the cross-sectional view of FIG. 12, the front extending portion 38 of the armrest component 35 has a shape extending forward and downward from the front end portion of the outward extending portion 37 extending in the front-rear direction in a convex arc shape. ing.

[Reinforcement rib 60]
The armrest constituent member 35 is provided with a reinforcing rib 60 as a reinforcing element projecting from both the upright portion 36 and the outwardly extending portion 37 toward the space 35s. 12, the reinforcing ribs 60 are formed in a lattice shape so as to avoid the component support member 5. As shown in FIG. 12, the reinforcing rib 60 includes a front-rear extending rib 61 extending linearly in the front-rear direction, a vertical extending rib 62 extending linearly in the vertical direction, the standing portion 36, and the outwardly extending portion 37. and a connection rib 63 (connection reinforcing portion) that connects the The reinforcing rib 60 connects the standing portion 36 and the outwardly extending portion 37 .

12, a plurality of longitudinally extending ribs 61 are provided at intervals in the vertical direction. In the cross-sectional view of FIG. 12 , a plurality of vertically extending ribs 62 are provided at intervals in the front-rear direction. In the cross-sectional view of FIG. 12 , a plurality of connecting ribs 63 are provided at intervals in the extending direction of the outwardly extending portion 37 and the front side extending portion 38 . 12, part of the plurality of connecting ribs 63 (parts connected to the lower surface of the outwardly extending portion 37) is above the uppermost front-rear extending rib 61 (the uppermost front-rear extending rib 61). It extends parallel to the vertically extending rib 62 between the rib 61 and the outwardly extending portion 37 .

As shown in FIG. 10, the armrest cover member 45 is provided with an outer side rib 46 projecting from the inner surface of the armrest cover member 45 inward in the width direction (space 35s). As shown in FIG. 9, the outer rib 46 is arcuate along the extending direction of the outwardly extending portion 37 and the front extending portion 38 (see FIG. 12) of the armrest component 35. As shown in FIG. In FIG. 9, reference numeral 46h denotes a plurality of through-holes that open in the thickness direction of the outer rib 46 and are spaced apart in the extending direction of the outer rib 46. As shown in FIG.

[Component support member 5]
As shown in FIG. 6, the component support member 5 extends laterally of the seat surface portion 20 via a passage 25 formed between the first surface portion 32 and the second surface portion 16, and the extending end The top plate 6 (see FIG. 1) can be supported by the portion 5a. The component support member 5 is sandwiched between the first surface portion 32 and the second surface portion 16 . The component support member 5 includes a supported portion 55 (see FIG. 5) supported by the seat surface forming member 4 .

As viewed from the front in FIG. 6, the component support member 5 has a U shape. For example, the component support member 5 is formed by bending a pipe material having an annular cross section. The component support member 5 includes a passage-side arrangement portion 50 arranged in the passage 25 and a side extension portion 51 extending upward from the passage-side arrangement portion 50 on the side of the seat surface portion 20 .

The passage-side arrangement portion 50 linearly extends in the horizontal direction (width direction) along the first surface portion 32 . A bracket 55 (see FIG. 5) as a supported portion is provided on the passage-side arrangement portion 50 (hereinafter also referred to as “horizontally extending portion 50”). For example, the bracket 55 is fixed to the horizontal extension 50 by welding.

The laterally extending portion 51 connects the vertically extending portion 52 that extends linearly in the vertical direction, the lower end portion of the vertically extending portion 52 and the widthwise outer end portion of the horizontally extending portion 50 , and extends upwardly. and a slanted connecting portion 53 that is slanted in the opposite direction.

The vertically extending portion 52 is provided with a second bracket 56 extending toward the armrest constituent member 35 (see FIG. 12). For example, the second bracket 56 is fixed to the vertically extending portion 52 by welding. As viewed from the side in FIG. 12 , the second bracket 56 extends forward from the vertically extending portion 52 .

As shown in FIG. 6 , a pair of vertically extending portions 52 are provided on the left and right so as to extend upward from both ends of the horizontally extending portion 50 . An upper end portion of the vertical extension portion 52 functions as an extension end portion 5a that supports the top plate 6 (see FIG. 1).

In the front view of FIG. 6 , the inclined connecting portion 53 is linearly inclined so as to be positioned outward in the width direction toward the upper side from the outer end portion in the width direction of the horizontally extending portion 50 . In the side view of FIG. 4 , the inclined connecting portion 53 is linearly inclined so as to be located forward from the widthwise outer end portion of the horizontally extending portion 50 toward the upper side.

[Intermediate path forming unit 34]
As shown in FIG. 13, the seat surface forming member 4 is positioned above the bracket 55 (see FIG. 14), and the side extending portion 51 (specifically, the inclined connecting portion 53) of the component supporting member 5 is attached to the seat surface forming member 4. An intermediate path forming portion 34 that forms an intermediate path 34s (space) for passage is provided. In the cross-sectional view of FIG. 13, the intermediate path forming portion 34 has an inverted V shape that protrudes forward and upward. The intermediate path forming portion 34 is inclined along the inclination of the inclined connecting portion 53 so as to be positioned outward in the width direction toward the upper side. The intermediate path forming portion 34 functions as a wall portion that restricts movement of the inclined connecting portion 53 in the front-rear direction, inward in the width direction, and upward. In the embodiment, a minute gap is provided between the intermediate path forming portion 34 and the inclined connecting portion 53 .

[Fixation structure between inner main body 31 and armrest component 35]
As shown in FIG. 11, the armrest constituent member 35 is provided with a downward arcuate extension portion 36a that extends in an arcuate shape avoiding the component support member 5 (see FIG. 12) and the reinforcing rib 60. As shown in FIG. .

As shown in FIG. 7, the lower arcuate extending portion 36a (see FIG. 11) of the armrest component 35 is fixed to the arcuate side portion 31a of the inner main body 31 with a plurality of bolts 36j. In FIG. 11, reference numeral 36h indicates a plurality of bolt insertion holes that are open in the width direction and provided at intervals along the lower arcuate extension 36a. In FIG. 15, reference numeral 36k denotes a tubular boss portion that protrudes from the lower arcuate extension portion 36a toward the arcuate side portion 31a of the inner main body 31. As shown in FIG.

[Fixation structure between inner main body 31 and component support member 5]
As shown in FIG. 5 , the inner main body 31 includes an inner lower surface portion 32 along a horizontal plane and a component support member connection portion 33 to which the component support member 5 can be connected.
The inner lower surface portion 32 constitutes the lower surface portion (first surface portion) of the seat surface forming member 4 .

14, the component support member connecting portion 33 bulges upward from the inner lower surface portion 32. As shown in FIG. As viewed from above in FIG. 5 , the component support member connecting portion 33 has a rectangular shape along the outer shape of the bracket 55 . In FIG. 14, reference numerals 33h and 55h denote bolt insertion holes that open vertically and through which bolts 55j for fixing the bracket 55 are inserted.

As shown in FIG. 14, the component support member 5 (specifically, the horizontally extending portion 50) has bolts 55j inserted from below into the bolt insertion holes 33h and 55h of the component support member connecting portion 33 and the bracket 55. The bolt 55j is fixed by screwing the upward projecting portion (male screw portion) of the bolt 55j into a nut (female screw portion) (not shown). In the embodiment, the component support member 5 is fixed to the inner main body 31 by a pair of left and right component support member connecting portions 33 via brackets 55 at one position each (total two positions on the left and right) (see FIG. 5 ). ).

[Fixation structure between armrest component 35 and part support member 5]
As shown in FIG. 11, the armrest constituent member 35 includes a second component support member connecting portion 65 capable of connecting the component support member 5 (specifically, the vertical extension portion 52, see FIG. 12). The second component support member connecting portion 65 protrudes from the standing portion 36 toward the space 35s at a height lower than that of the reinforcing rib 60. As shown in FIG. In FIG. 12, reference numeral 56h denotes a bolt insertion hole that opens in the width direction and through which a bolt (not shown) for fixing the second bracket 56 is inserted.

The vertically extending portion 52 of the component support member 5 has a bolt inserted from the outside in the width direction into the bolt insertion hole 56h of the second bracket 56, and the inward projecting portion (male screw portion) of the bolt in the width direction supports the second component. It is fixed by being screwed into the female screw portion 65m of the member connecting portion 65 . In the embodiment, the component support member 5 is connected to the pair of left and right armrest constituent members 35 by the pair of left and right second component support member connecting portions 65 via the second bracket 56 at one location each (two locations on the left and right in total). Fixed.
The component support member 5 is a reinforcing member for the armrest portion 23 (see FIG. 2), and functions as an attachment member when an additional functional member (accessory) such as the top plate 6 is attached.

[Fixation structure between outer main body 41 and armrest cover member 45]
As shown in FIG. 9, the armrest cover member 45 has an arcuate inner arcuate portion extending widthwise inward from the rear lower end portion of the armrest cover member 45 along the arcuate side portion 43 of the outer main body 41 . An extension 47 is provided.

The inward arcuate extending portion 47 of the armrest cover member 45 is fixed to the arcuate side portion 43 of the outer main body 41 with a plurality of bolts 47j. In FIG. 9, reference numeral 47a indicates a plurality of stepped portions provided at intervals along the inward arc-shaped extension portion 47 and forming the bearing surface of the bolt 47j. A front wall of the stepped portion 47a is provided with a bolt insertion hole (not shown) that opens in the front-rear direction. In FIG. 9 , reference numeral 43 a denotes a tubular boss projecting from the arcuate side portion 43 of the outer main body 41 toward the bolt insertion hole of the inward arcuate extension portion 47 .

[Engagement structure between inner main body 31 and outer main body 41]
As shown in FIG. 2, the upper portion of the inner main body 31 is provided with a rectangular inner side opening 31h that opens in the front-rear direction and has a length in the vertical direction. A plurality of inner side openings 31h are provided at intervals in the vertical direction and the width direction.

As shown in FIG. 7, the upper portion of the outer main body 41 is provided with an outer-side convex portion 44 that protrudes toward the inner-side opening 31h. A plurality of outer-side protrusions 44 are provided at intervals in the vertical direction and the width direction so as to correspond to the inner-side opening 31h.

16, a crank-shaped support fitting 67 is fixed to the outer protrusion 44 with a pair of upper and lower bolts 67j. 16, the support fitting 67 includes a bolt connecting portion 67a extending vertically along the front surface of the outer convex portion 44, and an upper end portion of the bolt connecting portion 67a extending forward and then upward. An inner receiving portion 67b that bends and extends and then extends forward and upward with a slight inclination.

For example, the inner main body 31 and the outer main body 41 can be engaged by inserting the inner receiving portion 67b of the outer main body 41 into the inner side opening 31h of the inner main body 31 from the rear lower side.

As shown in FIG. 14 , the outer main body 41 has an outer lower surface portion 42 along the inner lower surface portion 32 of the inner main body 31 . The outer lower surface portion 42 faces the inner lower surface portion 32 of the inner main body 31 from below. In FIG. 14, reference numerals 32h and 42h denote bolt insertion holes that open vertically and through which bolts 42j for fixing the outer main body 41 are inserted.

As shown in FIG. 14, the outer main body 41 is inserted from below into the respective bolt insertion holes 32h, 42h of the inner main body 31 (specifically, the inner lower surface portion 32) and the outer main body 41 (specifically, the outer lower surface portion 42). A bolt 42j is inserted, and the upward protrusion (male threaded portion) of the bolt 42j is screwed into a nut (female threaded portion) (not shown) to be fixed. In the embodiment, the outer main body 41 is fixed to the inner main body 31 by a pair of left and right bolts 42j at one position each (total two positions on the left and right) (see FIG. 5).

[Fixation structure between inner main body 31 and support base 15]
As shown in FIG. 14, the support base 15 is a seat surface forming member connecting portion capable of connecting the seat surface forming member 4 while the component supporting member 5 is connected to the component supporting member connecting portion 33 of the inner main body 31 . 17. In the cross-sectional view of FIG. 14 , a pair of seat surface forming member connecting portions 17 are arranged with a space therebetween in the front-rear direction via the component support member 5 . 14, the seat surface forming member connecting portion 17 protrudes toward the inner lower surface portion 32 of the inner main body 31 via the outer main body 41. As shown in FIG.

The seat surface forming member connecting portion 17 includes a front connecting portion 18 located at the front portion of the support base 15 and a rear connecting portion 19 located at the rear portion of the support base 15 . In FIG. 14, reference numerals 18h and 42f denote bolt insertion holes that open vertically and through which bolts 18j for fixing the front portion of the support base 15 are inserted. Reference numerals 19h and 42r in FIG. 14 denote bolt insertion holes which are vertically open and through which bolts 19j for fixing the rear portion of the support base 15 are inserted.

As shown in FIG. 14, the seat surface forming member 4 includes a seat surface forming member connection portion 17 (specifically, a front side connection portion 18 and a rear side connection portion 19) and an outer main body 41 (specifically, an outer lower surface portion 42). ) are inserted from below into the bolt insertion holes 18h, 42f (19h, 42r) of the bolts 18j (19j). It is fixed by being screwed into the female screw portion 32f (32r) of the lower surface portion 32). In the embodiment, the inner main body 31 is connected to the support base 15 by a pair of front and rear seat surface forming member connecting portions 17 (front connecting portion 18 and rear connecting portion 19) via the outer main body 41 (left and right). four points in total).

[Manufacturing method of chair 1]
An example of a method for manufacturing the chair 1 of the embodiment will be described below.
The method for manufacturing the chair 1 of the embodiment includes an assembly manufacturing process of connecting the component support member 5 to the seat surface constituting member 4 to manufacture an assembly, and after the assembly manufacturing process, the assembly is formed into the load support structure 3. and an assembly connection step that connects to the .

An example of the assembly manufacturing process will be described below.
First, the cushion is adhered to each of the constituent members of the inner shell 30 (the inner main body 31 and the armrest constituent member 35).
Next, the inner main body 31 and the armrest constituent member 35 are bolted. Specifically, the lower arcuate extension 36a of the armrest component 35 is fixed to the arcuate side 31a of the inner main body 31 with a plurality of bolts 36j (see FIGS. 7 and 11).

Next, the inner shell 30 and the component support member 5 are bolted.
In the embodiment, the horizontally extending portion 50 of the component support member 5 is fixed to the inner main body 31 , and the vertically extending portion 52 of the component support member 5 is fixed to the armrest constituent member 35 .
Specifically, the inner main body 31 and the horizontally extending portion 50 are fixed by inserting the bolt 55j from below into the bolt insertion holes 33h and 55h of the component support member connecting portion 33 and the bracket 55, and (male threaded portion) is screwed into a nut (female threaded portion) (not shown) (see FIG. 14).
On the other hand, the armrest component 35 and the vertically extending portion 52 are fixed by inserting a bolt (not shown) through the bolt insertion hole 56h of the second bracket 56 from the outside in the width direction, male threaded portion) is screwed into the female threaded portion 65m of the second component support member connecting portion 65 (see FIG. 12).

Next, the outer main body 41 and the armrest cover member 45 are bolted. Specifically, the inward arcuate extending portion 47 of the armrest cover member 45 is fixed to the arcuate side portion 43 of the outer main body 41 with a plurality of bolts 47j (see FIG. 9).

Next, a catch (not shown) made of resin such as plastic is engaged with the outer main body 41 at an appropriate location.
Next, the skin material is adhered to the outer main body 41 .
Next, a crank-shaped support fitting 67 is bolted to the outer main body 41 (see FIG. 16).

Next, the inner body 31 and the outer body 41 are engaged. Specifically, the inner main body 31 and the outer main body 41 are engaged with each other by inserting the support fitting 67 (inner receiving portion 67b) of the outer main body 41 from the rear lower side into the inner side opening 31h of the inner main body 31 ( 7 and 16).

Next, the outer body 41 is pressed against the inner body 31 to fit the catch (not shown) into the recess (not shown) of the inner body 31 .
By replacing the catches with bolts, the integrity between the inner shell 30 and the outer shell 40 can be further enhanced, and the whole can be used as a strength member. The outer shell 40 may function not only as a cover member for the inner shell 30 but also as a reinforcing member.

Next, the inner body 31 and the outer body 41 are fixed. Specifically, the inner main body 31 and the outer main body 41 are fixed by inserting the bolt 42j from below into the bolt insertion holes 32h and 42h of the inner main body 31 and the outer main body 41, and ) is screwed into a nut (female screw portion) (not shown) (see FIG. 14).
An assembly can be manufactured by the above procedure.

An example of the assembly connecting process will be described below.
After the assembly manufacturing process, the inner main body 31 and the support base 15 are fixed. Specifically, the inner main body 31 and the support base 15 are fixed by inserting the bolts 18j (19j) from below into the bolt insertion holes 18h, 42f (19h, 42r) of the seat surface forming member connecting portion 17 and the outer main body 41. Then, the upward projecting portion (male screw portion) of the bolt 18j (19j) is screwed into the female screw portion 32f (32r) of the inner main body 31 (see FIG. 14).
According to the above procedure, the chair 1 of the embodiment can be manufactured.
As shown in FIG. 1, in the chair 1 in the completed state, the top plate 6 is arranged at a position radially outwardly offset from the center position of the chair 1, can be rotated. When seated, the seating space can be opened forward by rotating the top plate 6 in the direction of the arrow R1 around the axis.

[Body Support Surface Constituent Part 70]
As shown in FIG. 2, the chair 1 includes a body support surface forming part 70 as a body part capable of receiving a load from the outside, and a functional part forming part 75 connected to the body support surface forming part 70. . The body support surface forming portion 70 and the functional portion forming portion 75 constitute the chair forming member 7 as a furniture forming member.

An indicating means 80 is provided between the body support surface forming part 70 and the functional part forming part 75 to indicate the boundary between the body supporting surface forming part 70 and the functional part forming part 75 . The chair constituent member 7 is made into fixtures of the first specification by using the body support surface constituent part 70 and the functional part constituent part 75 as they are without cutting the functional part constituent part 75 from the body support surface constituent part 70. By using at least the body supporting surface constituting part 70 common to the first embodiment and at least a part of the functional part constituting part 75 from the body supporting surface constituting part 70 using the instruction means 80 as a cutting part, the second form is obtained. It is configured to be selectable between the second form, which is the fixture of the specification.

The body support surface forming portion 70 includes a seat surface forming portion 71 and a backrest forming portion 72 standing upward from the rear end portion of the seat surface forming portion 71 . The body support surface forming portion 70 is formed by integrally connecting a seat surface forming portion 71 and a backrest forming portion 72 . The seat surface forming portion 71 corresponds to the inner lower surface portion 32 .

In a cross-sectional view perpendicular to the width direction of the chair 1 (a cross-sectional view of FIG. 7 in which the main part of the chair 1 is cut at the center in the width direction), the body support surface forming part 70 consists of a seat surface forming part 71 and a backrest forming part 72. are connected to each other. In the cross-sectional view of FIG. 7, the body support surface forming portion 70 (specifically, the backrest forming portion 72) has an arcuate shape that protrudes rearward and downward.

In a cross-sectional view perpendicular to the vertical direction (a cross-sectional view of FIG. 8 in which the backrest forming part 72 is cut along a plane parallel to the horizontal plane), the body supporting surface forming part 70 has a center portion in the width direction that is wider than the outside portion in the width direction. also has a concave shape located on the far side. In the cross-sectional view of FIG. 8, the body support surface forming portion 70 (specifically, the backrest forming portion 72) has an arcuate shape that protrudes rearward.

In a cross-sectional view perpendicular to the front-rear direction (a cross-sectional view of FIG. 19 cut along the axis of the pedestal 12), the widthwise central portion of the body support surface forming portion 70 is positioned lower than the widthwise outer portion. It has a concave shape. In the cross-sectional view of FIG. 19, the body support surface forming portion 70 (specifically, the seat surface forming portion 71) has a portion extending linearly in the width direction and a portion inclined so as to be positioned upward toward the outer side in the width direction. and have

In the cross-sectional view of FIG. 7, the connection position between the seat surface-forming portion 71 and the backrest-forming portion 72 in the body support surface-forming portion 70 is denoted by P1, and the connection portion (the seat surface-forming portion 71 and the backrest structure) including the connection position P1. 72) are denoted by reference numeral 73, respectively. 7, the connection position P1 is the connection position between the rear end of the upper horizontal surface of the seat surface forming portion 71 and the lower end of the front curved surface of the backrest forming portion 72. As shown in FIG.

In a cross-sectional view perpendicular to the vertical direction (a cross-sectional view of FIG. 17 in which the body-supporting surface-forming portion 70 is cut along a horizontal plane passing through the connecting position P1), the seat surface-forming portion 71 and the backrest-forming portion of the body-supporting surface-forming portion 70 are shown. A connection portion 73 with 72 has a concave shape in which the central portion in the width direction is located on the inner side than the outer portions in the width direction. In the cross-sectional view of FIG. 17, the connection portion 73 of the body support surface forming portion 70 has an arcuate shape that protrudes rearward.

In a cross-sectional view perpendicular to the front-rear direction (a cross-sectional view of FIG. 18 in which the body-supporting surface-constituting portion 70 is cut along a vertical plane passing through the connecting position P1), the seat surface-constituting portion 71 and the backrest structure of the body-supporting surface-constituting portion 70 are shown. The connection portion 73 with the portion 72 has a concave shape in which the center portion in the width direction is positioned below the outer portions in the width direction. In the cross-sectional view of FIG. 18, the connection portion 73 of the body support surface forming portion 70 has an arcuate shape that protrudes downward.

As shown in FIG. 2, the functional part forming portion 75 includes an armrest connecting portion 76 (see FIG. 9) extending outward in the width direction from the widthwise outer portion of the body support surface forming portion 70, and a body support surface. and a head supporting surface forming portion 77 extending upward from the upper end portion of the forming portion 70 .

As shown in FIG. 9 , the armrest connecting portion 76 extends outward in the width direction from an imaginary downward extension line of the upper outer ridgeline of the body support surface forming portion 70 . The armrest connecting portion 76 is a portion to which the armrest cover member 45 is connected. A plurality of boss portions 43 a are provided on the armrest connecting portion 76 .

As shown in FIG. 2 , the head support surface forming portion 77 extends upward from the ridgeline of the upper end portion of the body support surface forming portion 70 . The head supporting surface forming portion 77 includes a head supporting surface forming main body 78 extending upward from the upper end portion of the body supporting surface forming portion 70 and a head supporting surface forming main body 78 extending forward from the widthwise outer end of the head supporting surface forming main body 78 . A pair of extending left and right sound insulation function constituent portions 79 are provided.

[Instruction means 80]
An indicating means 80 is provided between the body support surface forming part 70 and the functional part forming part 75 to indicate the boundary between the body supporting surface forming part 70 and the functional part forming part 75 . The instruction means 80 can move in the depth direction, width direction and height direction of the chair 1 from the connecting position P1 (see FIG. 7) between the seat surface forming portion 71 and the backrest forming portion 72 in the body support surface forming portion 70. They are provided at separated positions.

In an embodiment, indicator means 80 are provided on both inner shell 30 and outer shell 40 (see FIG. 3). In the embodiment, the indicating means 80 is a line drawn with a marker or the like and has a continuous linear shape. In FIG. 2, the indicating means 80 is indicated by a dashed line. In an embodiment, the indicating means 80 is drawn after making the inner shell 30 (outer shell 40) and before cutting the inner shell 30 (outer shell 40).

As shown in FIG. 2, the instruction means 80 includes an armrest connecting boundary indicating portion 81 (see FIG. 9) that indicates the boundary between the body support surface forming portion 70 and the armrest connecting portion 76, and the body supporting surface forming portion 70. A head support surface boundary indicating portion 82 indicating a boundary separating the head support surface configuration portion 77 (specifically, the head support surface configuration main body 78), a head support surface configuration main body 78, and a sound insulation function configuration portion 79. and a sound insulation boundary indicator 83 that indicates a boundary that divides the .

The armrest connecting boundary indicating portion 81 is arranged along an imaginary extension line extending downward from the upper outer ridgeline of the body support surface forming portion 70 . The armrest connecting boundary indicating portion 81 extends vertically so as to be continuous with the outer edge in the width direction of the backrest forming portion 72 in the cross-sectional view of FIG. 8 .

As shown in FIG. 2 , the head support surface boundary indicating portion 82 is arranged along the ridgeline of the upper end portion of the body support surface forming portion 70 . 2, the head support surface boundary indicating portion 82 includes a width direction linear indicating portion 82a extending linearly in the width direction, and a pair of left and right arcuate portions connected to the outer ends of the width direction linear indicating portion 82a in the width direction. and an instruction unit 82b. The arcuate pointing portion 82b forms an arcuate shape that protrudes upward at the corner portion of the upper end portion of the body support surface forming portion 70. As shown in FIG.

As shown in FIG. 2 , the sound insulation boundary instructing portion 83 is arranged along an imaginary upward extension line of the upper outer ridgeline of the body support surface forming portion 70 . The sound insulation boundary instruction portion 83 includes a vertical linear instruction portion 83a extending linearly in the vertical direction so as to be continuous with the outer edge of the backrest constituting portion 72 in the width direction in the cross-sectional view of FIG. and an arc-shaped pointing portion 83b (hereinafter also referred to as a “second arc-shaped pointing portion 83b”) connected to the upper end of the . The second arcuate pointing portion 83b has an arcuate shape that protrudes upward at the corner of the upper end portion of the main body 78 constituting the head support surface.

[Manufacturing method for chairs with different specifications]
An example of the method for manufacturing the chair of the embodiment will be described below.
The chair manufacturing method of the embodiment is a method of manufacturing chairs with different specifications using the chair component 7 (see FIG. 2). Specifically, in the chair manufacturing method of the embodiment, the body supporting surface forming portion 70 and the functional portion forming portion 75 are used as they are without removing the functional portion forming portion 75 from the body supporting surface forming portion 70 to form the first chair. Using at least the first step of manufacturing the chair 1 (see FIG. 2) of the specifications and the body supporting surface forming portion 70 common to the first step, at least part of the body supporting surface forming portion 70 to the functional portion forming portion 75 is removed. and a second step of manufacturing a second specification chair 201, 301, 401 (see FIGS. 20-22) by cutting.

For example, in the first step, as shown in FIG. A chair 1 of one specification can be manufactured.

For example, in the second step, as shown in FIG. 20, at least the body supporting surface forming portion 70 common to the first step is used, and among the body supporting surface forming portion 70 to the functional portion forming portion 75, the sound insulation function forming portion 79 is used. (see FIG. 2), a second specification chair 201 different from the first specification can be manufactured. The second specification chair 201 includes an armrest connecting portion 76 and a head support surface forming main body 78 as the functional portion constituting portion 75 . For example, in the second step, the chair 201 of the second specification can be manufactured by cutting the sound insulation boundary designating portion 83 (see FIG. 2) of the chair component 7 with a cutting means such as a cutter.

For example, in the second step, as shown in FIG. 21, at least the body supporting surface forming part 70 common to the first step is used, and the head supporting surface forming part of the body supporting surface forming part 70 to the functional part forming part 75 is used. By cutting off the portion 77 (see FIG. 2), a chair 301 with specifications different from the first and second specifications (hereinafter also referred to as "third specification") can be manufactured. A chair 301 of the third specification includes an armrest connecting portion 76 as a functional portion forming portion 75 . For example, in the second step, the chair 301 of the third specification is manufactured by cutting the head support surface boundary indication portion 82 (see FIG. 2) of the chair component 7 with a cutting means such as a cutter. can be done.

For example, in the second step, as shown in FIG. 22, at least the body supporting surface forming portion 70 common to the first step is used, and from the body supporting surface forming portion 70 to the functional portion forming portion 75 (the armrest connecting portion 76 and the head joint 76). Chair 401 with a specification different from the first specification, second specification and third specification (hereinafter also referred to as "fourth specification") by cutting the supporting surface forming part 77 (see FIG. 2). can be manufactured. A chair 401 of the fourth specification does not have the functional part forming part 75 . For example, in the second step, the instruction means 80 (the armrest connection boundary instruction portion 81 and the head support surface boundary instruction portion 82) of the chair component 7 are cut by a cutting means such as a cutter to meet the fourth specification. chair 401 can be manufactured.
As described above, according to the embodiment, chairs with different specifications shown in FIGS. 2 and 20 to 22 can be manufactured.
For example, when the chair constituent member 7 (at least the functional part constituent part 75 of the body support surface constituent part 70 and the functional part constituent part 75) is made of a recyclable resin material, the The functional part constituting part 75 can be placed in a melting furnace and melted to be reused as a resin material.

As described above, the furniture constituting member 7 according to the above-described embodiment is the furniture constituting member 7 including the body portion 70 capable of receiving a load from the outside, and the functional portion constituting portion 75 connected to the body portion 70 is provided between the body portion 70 and the functional portion constituting portion 75 to indicate a boundary dividing the body portion 70 and the functional portion constituting portion 75. A first form in which the main body part 70 and the functional part constituting part 75 are used as they are without removing the main body part 70 and the functional part constituting part 75 to make the furniture of the first specification, and at least the main body part 70 common to the first form is used, and the instruction means 80 is cut. A second form in which at least a part of the functional part forming part 75 is removed from the main body part 70 as a part to make fixtures of the second specification can be selected.

According to this configuration, since the instruction means 80 is provided at the boundary separating the main body part 70 and the functional part constituting part 75, it is possible to move from the main body part 70 to the functional part constituting part along the instruction means 80 as necessary. 75 can be excised. That is, by stocking only the fixture component 7, in the first form, the fixture of the first specification is provided with both the body part 70 and the functional part structure part 75, and in the second form, at least the body part 70 is used. It can be a fixture of the second specification provided. Therefore, it is possible to meet various customer needs while avoiding an increase in management costs.

In the above-described embodiment, the body portion 70 includes a body support surface forming portion 70 having a seat surface forming portion 71 and a backrest forming portion 72, and the body support surface forming portion 70 has a cross section perpendicular to the width direction of the chair 1. As can be seen, the seat surface forming portion 71 and the backrest forming portion 72 are connected to each other, and the instruction means 80 indicates the shape of the seat surface forming portion 71 and the backrest forming portion 72 in the body support surface forming portion 70. The following effects are obtained by being provided at positions separated from the connection position P1 in the depth direction, width direction, and height direction of the chair 1 .
According to this configuration, while the connecting portion 73 between the seat surface forming portion 71 and the backrest forming portion 72, which is essential for maintaining the rigidity of the body support surface forming portion 70, is secured, the instruction means can be operated as necessary. Functional site component 75 can be excised along 80 . Therefore, the chair component 7 having the seat surface component 71 and the backrest component 72 can meet various customer needs while avoiding an increase in management costs.

In the above-described embodiment, the seat surface forming portion 71 has a concave shape in which the central portion in the width direction is located below the outer end portions in the width direction in a cross-sectional view perpendicular to the depth direction of the chair 1, and the backrest is formed. The forming portion 72 has a concave shape in which the central portion in the width direction is positioned further back than the outer end portions in the width direction in a cross-sectional view perpendicular to the height direction of the chair 1, and the body support surface forming portion 70 is: The following effects are achieved by forming the seat surface forming portion 71 and the backrest forming portion 72 integrally in a row.
According to this configuration, the chair 1 is robust against not only the load in the depth direction but also the load in the width direction of the chair 1 . Therefore, even when the functional part constituting portion 75 is spaced far from the body support surface constituting portion 70, it is possible to suppress the decrease in the rigidity of the whole.

In the above-described embodiment, the body support surface forming part 70 includes a first cross-sectional view orthogonal to the width direction of the chair 1, a cross-section orthogonal to the depth direction of the chair 1, and a cross-section orthogonal to the height direction of the chair 1. The following effects are obtained by forming an arc in each of the two cross-sectional views.
According to this configuration, since there is no seam between the parts that support different parts of the body, even if the load is concentrated on a predetermined part of the body support surface forming part 70, the load will be transferred to the base of the body support surface structure part 70 due to the load. The overall rigidity can be improved because the applied moment is not concentrated but distributed throughout.

In the above-described embodiment, the connecting portion 73 between the seat surface forming portion 71 and the backrest forming portion 72 in the body support surface forming portion 70 is a cross-sectional view perpendicular to the depth direction of the chair 1, and the central portion in the width direction is the width direction. In a cross-sectional view orthogonal to the height direction of the chair 1, the central portion in the width direction is a concave shape located deeper than the outer end in the width direction. The following effects are achieved by forming
According to this configuration, the connecting portion 73 between the seat surface forming portion 71 and the backrest forming portion 72, which is essential for maintaining the rigidity of the body support surface forming portion 70 (the connection portion 73 that secures the rigidity of the body support surface forming portion 70). part) forms a non-linear cross-section in both a cross-sectional view orthogonal to the depth direction of the chair 1 and a cross-sectional view orthogonal to the height direction of the chair 1. Therefore, even when the functional part constituting portion 75 is spaced far from the body support surface constituting portion 70, it is possible to suppress the decrease in the rigidity of the whole.

In the above-described embodiment, the functional part forming part 75 includes the armrest connecting part 76 extending outward in the width direction from the imaginary downward extension line of the ridgeline of the upper outer side of the body supporting surface forming part 70. 80 has the following effects by providing the armrest connecting boundary indicating portion 81 arranged along an imaginary downward extension line of the upper outer ridgeline of the body support surface forming portion 70 .
According to this configuration, the armrest connecting boundary indicating portion 81 is arranged along the imaginary extension line downward of the ridgeline of the upper outer side of the body support surface forming portion 70, so that the form without armrests can be selected. In the case where the armrest connecting portion 76 is removed, it is possible to prevent a structural portion (for example, a boss or the like) required for connection with the armrest from remaining on the body support surface forming portion 70 . Therefore, the chair component 7 can meet various customer needs without impairing its design.

In the above-described embodiment, the functional part constituting portion 75 includes a head supporting surface constituting portion 77 extending upward from the ridgeline of the upper end of the body supporting surface constituting portion 70, and the indicating means 80 includes the body supporting surface constituting portion By providing the head support surface boundary indicating portion 82 arranged along the ridgeline of the upper end portion of 70, the following effects can be obtained.
According to this configuration, the head support surface boundary indication portion 82 is arranged along the ridgeline of the upper end portion of the body support surface forming portion 70, so that the head support surface boundary indication portion 82 can be moved along the head support surface boundary indication portion 82 as necessary. The head support surface forming portion 77 can be excised from the body support surface forming portion 70 by using the same method. That is, basically, both the body support surface forming portion 70 and the head support surface forming portion 77 are provided, and only the body support surface forming portion 70 can be provided as necessary. Therefore, the chair component 7 having the head support surface component 77 can meet various customer needs while avoiding an increase in management costs.

In the above-described embodiment, the pointing means 80 has the arc-shaped pointing portion 82b formed at the corner of the body support surface forming portion 70, thereby providing the following effects.
According to this configuration, the body support surface-constituting portion 70 having rounded corners can be obtained by cutting the functional portion constituting portion 75 from the body support surface-constituting portion 70 along the arcuate pointing portion 82b as necessary. The manufacturing efficiency can be improved without requiring a chamfering process for rounding the corners in a separate process.

The fixture manufacturing method according to the above-described embodiment is a fixture manufacturing method for manufacturing fixtures with different specifications using a fixture-constituting member 7 having a body portion 70 capable of receiving a load from the outside. A functional part constituting part 75 is provided continuously with the part 70, and between the main body part 70 and the functional part constituting part 75, an indicating means 80 indicating a boundary separating the main body part 70 and the functional part constituting part 75 is provided. A first step of manufacturing fixtures of the first specification using the main body portion 70 and the functional portion forming portion 75 as they are without cutting the functional portion forming portion 75 from the main portion 70, and a first step common to the first step. and a second step of manufacturing fixtures of the second specification by using at least the main body portion 70 and cutting at least a part of the functional part forming portion 75 from the main body portion 70 using the indicating means 80 as a cutting portion.
According to this method, since the instruction means 80 is provided at the boundary separating the main body part 70 and the functional part constituting part 75, the user can move from the main body part 70 to the functional part constituting part along the instruction means 80 as necessary. 75 can be excised. That is, by stocking only the fixture component 7, in the first process, the fixture is made to the first specification including both the body part 70 and the functional part component part 75, and in the second process, at least the body part 70 is used. It can be a fixture of the second specification provided. Therefore, it is possible to meet various customer needs while avoiding an increase in management costs.

In addition, although the said embodiment gave and demonstrated the example which made the floor surface 2 in which the chair 1 is installed the indoor flat floor surface 2, it does not restrict to this. For example, the floor surface 2 may be an outdoor flat ground or an inclined surface, or may be a stand installation surface in a stadium such as a stadium.

Further, in the above-described embodiment, as an example of fixtures, a chair provided with a top plate having a work surface facing upward on the side of the seat has been described, but the present invention is not limited to this. For example, the furniture may be a chair without a top board, or equipment other than a chair, such as a desk, a shelf, a rack, a table, and a product display.

Further, in the above-described embodiment, the indicating means 80 is a line drawn with a marker or the like, and has been described as a continuous linear example, but the present invention is not limited to this. For example, the indicating means 80 may be a discontinuous line formed by a plurality of points.

Further, in the above-described embodiment, the indicating means 80 is described as being drawn after the inner shell 30 (outer shell 40) is manufactured and before the inner shell 30 (outer shell 40) is cut. Not exclusively. For example, the indicating means 80 may be drawn into the inner shell 30 (outer shell 40) during fabrication. For example, the indicating means 80 may be provided during molding of the inner shell 30 (outer shell 40) by providing a portion for applying the indicating means 80 to the mold for the inner shell 30 (outer shell 40).

For example, as shown in FIG. 23(a), the indicating means 80 may be a recessed portion 85 having a V-shaped cross section. That is, a concave portion 85 (groove portion) may be provided as the indicating means 80 between the main body portion 70 and the functional portion forming portion 75 .
Moreover, as shown in FIG. 23(b), the indicating means 80 may be a convex portion 86 having a V-shaped cross section. That is, a convex portion 86 may be provided as the pointing means 80 between the main body portion 70 and the functional portion forming portion 75 .
According to this configuration, when cutting off the functional part forming part 75 from the main body part 70 along the indicating means 80 as necessary, the cutting can be easily performed along the concave part 85 or the convex part 86 .

For example, as shown in FIG. 24, a guide means 90 is provided between the body portion 70 and the functional portion constituting portion 75 so as to extend along the boundary separating the body portion 70 and the functional portion constituting portion 75. may have been For example, the guide means 90 may be in the form of a continuous line drawn with a marker or the like, or may be a concave or convex part, like the pointing means 80 . In FIG. 24, the pointing means 80 is indicated by a one-dot chain line, and the guide means 90 is indicated by a two-dot chain line.
24, reference numeral 92 denotes a head support surface boundary guide portion extending along the head support surface boundary indication portion 82, and reference numeral 93 denotes a sound insulation boundary guide portion extending along the sound insulation boundary indication portion 83. each shown.

According to this configuration, when excising the functional part forming part 75 from the main body part 70 along the instruction means 80 as necessary, it can be easily excised along the guide means 90 . For example, a support member (not shown) that supports a cutting means such as a cutter is placed along the guide means 90, and the cutting blade of the cutting means is placed along the instruction means 80, thereby separating the functional portion forming portion 75 from the body portion 70. Can be easily excised.

Further, in the above-described embodiment, the instruction means 80 can be positioned in the depth direction, width direction and height direction of the chair 1 from the connection position P1 between the seat surface forming portion 71 and the backrest forming portion 72 in the body support surface forming portion 70. Although an example in which they are provided at separate positions has been described, the present invention is not limited to this. For example, the indicating means 80 is provided at a position separated only in the width direction and the height direction of the chair 1 from the connection position P1 between the seat surface forming portion 71 and the backrest forming portion 72 in the body support surface forming portion 70. may have been That is, the pointing means 80 is spaced apart from the connecting position P1 between the seat surface forming portion 71 and the backrest forming portion 72 in the body support surface forming portion 70 in at least one of the depth direction, width direction and height direction of the chair 1. position.

In the above-described embodiment, the body support surface forming part 70 has a first cross-sectional view orthogonal to the width direction of the chair 1, a cross-section orthogonal to the depth direction of the chair 1, and a cross-section orthogonal to the height direction of the chair 1. Although the example which has comprised the arc shape in each of the second cross section including is given and demonstrated, it does not restrict to this. For example, the body support surface forming portion 70 may be arcuate only in the first cross-sectional view, or may be arcuate only in the second cross-sectional view. That is, the body support surface forming portion 70 may be arcuate in at least one of the first cross-sectional view and the second cross-sectional view.

Moreover, although the said embodiment gave and demonstrated the example to which the to-be-supported part 55 in the component support member 5 is supported by the seat surface structure member 4, it does not restrict to this. For example, the supported portion 55 of the component support member 5 may be supported by the load support structure 3 . That is, the supported portion 55 of the component support member 5 may be supported by at least one of the seat surface forming member 4 and the load support structure 3 .

Further, in the above-described embodiment, an example in which the top plate 6 as an accessory is supported by the extension end portion 5a has been described, but the present invention is not limited to this. For example, the extended end portion 5a may support a display or a tablet cradle as an accessory, or may support a medical device such as an infusion device. An attachment for supporting accessories may be attached to the extension end 5a.

Further, in the above-described embodiment, the seat surface forming member 4 forms the intermediate path 34s through which the side extending portion 51 (specifically, the inclined connecting portion 53) passes at a position above the supported portion 55. Although the example provided with the intermediate|middle path|route formation part 34 was mentioned and demonstrated, it does not restrict to this. For example, as shown in FIG. 25, the intermediate path forming portion 34 includes an intermediate support member that supports the side extending portion 51 (specifically, the inclined connecting portion 53) at a position above the supported portion 55. 68 may be provided.

The intermediate support member 68 includes an intermediate support body 68a having a U-shaped cross section along the outer surface of the inclined connecting portion 53, and extension pieces 68b extending from both ends of the intermediate support body along the outer surface of the intermediate path forming portion 34. and (see FIG. 25). For example, the extending piece 68b is fixed to the outer surface of the intermediate path forming portion 34 by welding.
A spacer (not shown) may be provided between the intermediate path forming portion 34 and the inclined connecting portion 53 to fill a minute gap.

Further, in the above-described embodiment, an example in which the extension end portion 5a extends above the armrest surface has been described, but the present invention is not limited to this. For example, as shown in FIG. 26, in chair 1A, extension end 5a may be provided inside armrest 23 . For example, the vertically extending portion 52 may be configured to be vertically divisible.
Further, as shown in FIG. 27, in the chair 1B, the top plate 6 is supported by the right (one side in the width direction) extension end 5a, while the left (other width direction) extension end 5a is supported. 5 a may be provided inside the armrest portion 23 .

Further, in the above-described embodiment, an example in which the seat surface forming member 4 includes the inner shell 30 and the outer shell 40 (an example of a two-layer structure) has been described, but the present invention is not limited to this. For example, the seat surface forming member 4 may have a single layer structure including only the inner shell 30 .

Further, in the above-described embodiment, an example in which the supported portion is the bracket 55 has been described, but the present invention is not limited to this. For example, the supported portion may be the body of the horizontally extending portion 50 . That is, the horizontally extending portion 50 of the component support member 5 may be directly supported by the seat surface forming member 4 .

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

1, 1A, 1B... Chair (first specification chair), 2... Floor surface (chair installation surface), 7... Chair component (furniture component), 70... Body support surface component (main body), 71 Seat surface forming part 72 Backrest forming part 73 Connecting part 75 Functional part forming part 76 Armrest connecting part 77 Head supporting surface forming part 80 Instruction means 81 Armrest connecting boundary Indicator 82 Head supporting surface boundary indicator 82b Arc indicator 83b Second arc indicator (arc indicator) 85 Concave part 86 Convex part 90 Guide means 201 Second Chair of specification 301 ... Chair of third specification 401 ... Chair of fourth specification P1 ... Connection position

Claims (13)

A fixture-constituting member having a main body that can receive a load from the outside,
comprising a functional part forming part connected to the main body part,
Between the main body and the functional part-constituting part, there is provided an indicating means for indicating a boundary between the main body and the functional part-constituting part,
A first form in which the main body and the functional part constituting part are used as they are without cutting the functional part constituting part from the main body to make fixtures of the first specification;
A second form of furniture having a second specification by using at least the main body part common to the first form, and cutting at least a part of the functional part constituting part from the main body part using the instruction means as a cutting part. and can be selected,
A body support surface forming part having a seat surface forming part and a backrest forming part as the main body part,
The body support surface forming part has a shape in which the seat surface forming part and the backrest forming part are connected to each other in a cross-sectional view perpendicular to the width direction of the chair,
The indicating means is provided at a position spaced apart in at least one of the depth direction, the width direction and the height direction of the chair from a connection position of the seat surface structure portion and the backrest structure portion of the body support surface structure portion. and
The seat surface forming portion has a concave shape in which the central portion in the width direction is located below the outer end portion in the width direction in a cross-sectional view perpendicular to the depth direction,
The backrest-constituting portion has a concave shape in which the central portion in the width direction is positioned further back than the outer end portions in the width direction in a cross-sectional view perpendicular to the height direction,
The body support surface forming portion is formed by integrally connecting the seat surface forming portion and the backrest forming portion ,
The body support surface forming portion has an arc shape in each of a first cross-sectional view perpendicular to the width direction and a second cross-sectional view including a cross section perpendicular to the depth direction and a cross section perpendicular to the height direction. A fixture constituent member characterized by being . A fixture-constituting member having a main body that can receive a load from the outside,
comprising a functional part forming part connected to the main body part,
Between the main body and the functional part-constituting part, there is provided an indicating means for indicating a boundary between the main body and the functional part-constituting part,
A first form in which the main body and the functional part constituting part are used as they are without cutting the functional part constituting part from the main body to make fixtures of the first specification;
A second form of furniture having a second specification by using at least the main body part common to the first form, and cutting at least a part of the functional part constituting part from the main body part using the instruction means as a cutting part. and can be selected,
the main body portion and the functional portion forming portion have a shell shape integrated with each other ;
A fixture-constituting member, wherein the indicating means is a concave portion or a convex portion. A body support surface forming part having a seat surface forming part and a backrest forming part as the main body part,
The body support surface forming part has a shape in which the seat surface forming part and the backrest forming part are connected to each other in a cross-sectional view perpendicular to the width direction of the chair,
The indicating means is provided at a position spaced apart in at least one of the depth direction, the width direction and the height direction of the chair from a connection position of the seat surface structure portion and the backrest structure portion of the body support surface structure portion. 3. The furniture constituting member according to claim 2, characterized in that it is provided. The seat surface forming portion has a concave shape in which the central portion in the width direction is located below the outer end portion in the width direction in a cross-sectional view perpendicular to the depth direction,
The backrest-constituting portion has a concave shape in which the central portion in the width direction is positioned further back than the outer end portions in the width direction in a cross-sectional view perpendicular to the height direction,
4. The furniture constituting member according to claim 3, wherein the body supporting surface constituting portion is formed by integrally connecting the seat surface constituting portion and the backrest constituting portion. The body support surface forming portion has an arcuate shape in at least one of a first cross-sectional view perpendicular to the width direction and a second cross-sectional view including a cross section perpendicular to the depth direction and a cross section perpendicular to the height direction. 5. The furniture constituting member according to claim 4 , characterized in that it is formed. The connecting portion between the seat surface forming portion and the backrest forming portion in the body support surface forming portion is
In a cross-sectional view orthogonal to the depth direction, the center portion in the width direction has a concave shape located below the outer end portions in the width direction,
6. In a cross-sectional view perpendicular to the height direction, the center portion in the width direction forms a recessed shape located further back than the outer end portions in the width direction. Furniture components described in . The functional part forming portion includes an armrest connecting portion extending outward in the width direction from an imaginary downward extension line of the upper outer ridgeline of the body supporting surface forming portion,
7. The furniture constituting member according to any one of claims 1, 3 to 6, wherein the indicating means comprises an armrest connection boundary indicating portion arranged along the imaginary extension line. The functional part forming portion includes a head supporting surface forming portion extending upward from the ridgeline of the upper end portion of the body supporting surface forming portion,
8. The apparatus according to any one of claims 1, 3 to 7, wherein said indicating means comprises a head supporting surface boundary indicating portion arranged along a ridgeline of the upper end portion of said body supporting surface constituting portion. Listed fixture components. 9. The furniture constituting member according to any one of claims 1, 3 to 8, wherein said pointing means comprises an arcuate pointing portion forming an arc at a corner portion of said body supporting surface constituting portion. 10. The furniture constituting member according to any one of claims 1, 3 to 9, wherein the indicating means is a concave portion or a convex portion. 11. The fixture according to any one of claims 1 to 10, further comprising a guide means extending along the boundary between the main body and the functional part forming part. component. A fixture manufacturing method for manufacturing fixtures with different specifications using a fixture constituent member having a main body that can receive a load from the outside,
The furniture constituting member has a functional part constituting part connected to the main body part,
Between the main body and the functional part-constituting part, there is provided an indicating means for indicating a boundary between the main body and the functional part-constituting part,
a first step of manufacturing fixtures of a first specification using the main body and the functional part constituting part as they are without cutting the functional part constituting part from the main body;
A second step of manufacturing fixtures with second specifications by using at least the body portion common to the first step and cutting at least a part of the functional part constituting portion from the body portion using the instruction means as a cutting portion and
A body support surface forming part having a seat surface forming part and a backrest forming part as the main body part,
The body support surface forming part has a shape in which the seat surface forming part and the backrest forming part are connected to each other in a cross-sectional view perpendicular to the width direction of the chair,
The indicating means is provided at a position spaced apart in at least one of the depth direction, the width direction and the height direction of the chair from a connection position of the seat surface structure portion and the backrest structure portion of the body support surface structure portion. and
The seat surface forming portion has a concave shape in which the central portion in the width direction is located below the outer end portion in the width direction in a cross-sectional view perpendicular to the depth direction,
The backrest-constituting portion has a concave shape in which the central portion in the width direction is positioned further back than the outer end portions in the width direction in a cross-sectional view perpendicular to the height direction,
The body support surface forming portion is formed by integrally connecting the seat surface forming portion and the backrest forming portion ,
The body support surface forming portion has an arc shape in each of a first cross-sectional view perpendicular to the width direction and a second cross-sectional view including a cross section perpendicular to the depth direction and a cross section perpendicular to the height direction. A fixture manufacturing method characterized by: A fixture manufacturing method for manufacturing fixtures with different specifications using a fixture constituent member having a main body that can receive a load from the outside,
The furniture constituting member has a functional part constituting part connected to the main body part,
Between the main body and the functional part-constituting part, there is provided an indicating means for indicating a boundary between the main body and the functional part-constituting part,
a first step of manufacturing fixtures of a first specification using the main body and the functional part constituting part as they are without cutting the functional part constituting part from the main body;
A second step of manufacturing fixtures with second specifications by using at least the body portion common to the first step and cutting at least a part of the functional part constituting portion from the body portion using the instruction means as a cutting portion and
the main body portion and the functional portion forming portion have a shell shape integrated with each other ;
A fixture manufacturing method, wherein the indicating means is a concave portion or a convex portion.

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