CN105530839B

CN105530839B - Chair

Info

Publication number: CN105530839B
Application number: CN201480049836.9A
Authority: CN
Inventors: 益永浩; 高木裕一郎
Original assignee: Okamura Manufacturing Co Ltd
Current assignee: Okamura Manufacturing Co Ltd
Priority date: 2013-09-13
Filing date: 2014-08-25
Publication date: 2019-09-06
Anticipated expiration: 2034-08-25
Also published as: EP3045086A4; EP3045086B1; JP6210633B2; US20160220036A1; WO2015037421A1; CN105530839A; EP3045086A1; JP2015054213A

Abstract

The supporting mass that bears a heavy burden has substrate (13), padded coaming (14), tension materials (15) and fastening strip (18), and the substrate (13) constitutes skeleton portion；Surface side of padded coaming (14) configuration in substrate (13)；The tension materials (15) are laid with the lateral surface of covering padded coaming (14) and the outer peripheral edge portion of substrate (13)；The peripheral part of fastening strip (18) insertion tension materials (15), in the state of the outer peripheral edge portion of the lateral surface of tension materials (15) covering padded coaming (14) and substrate (13), is tensed in the back side of substrate (13) and be bundled end each other.The present invention provides a kind of chair, the first side wall (24) and the first highlighted wall (26) that restricted fastening strip (18) is displaced to substrate center direction is arranged in it on substrate (13), and limit the second sidewall (25) and the second highlighted wall (27) of the displacement of fastening strip (18) to substrate lateral direction, thus, it is possible to suitably limit the displacement of the peripheral part of fastening strip (18) and tension materials (15), it is able to suppress the positional shift of tension materials (15).

Description

Chair

Technical field

The present invention relates to a kind of improved chairs of mounting portion of tension materials by the load-carryings supporting mass such as pedestal or chair back.

The application in the Japanese patent application 2013-190952 of Japanese publication and was advocated excellent based on September in 2013 13 days It first weighs, is hereby incorporated its content.

Background technique

The chair pedestal of office use etc. is commonly used for usually on the substrate top for constituting skeleton portion, configured with polyurethane etc. Padded coaming is covered from the lateral surface of padded coaming to the side edge section of substrate by the tension materials of sheet.

When installing the tension materials of this chair, due to tension materials readily replaceable when being stained etc., and be easy to The whole region of tension materials imposes stable tension, therefore, mostly uses tighten tension on the downside of substrate using fastening strip greatly The peripheral part of material, the method being thus fixed on tension materials on padded coaming and substrate (referring for example to patent document 1,2).

In the chair described in patent document 1,2, what the outer peripheral edge portion of the lateral surface of padded coaming and substrate was packed in The peripheral part of tension materials is provided with the insertion hole taken the shape of a bag, inserts in the hole and is inserted into fastening strip at this, the end of fastening strip It is bundled the side below substrate each other.The side below this chair is arranged restricted fastening strip and is displaced to substrate center side Locking protrusion, thus prevent the positional shifts of tension materials.

In this chair, fastening strip is annularly tensed in substrate following side and is bundled end each other, thus, it is possible to hold It changes places and tension materials is mounted on padded coaming and substrate.Moreover, carrying out pipe by the length in the bundle portion to fastening strip Reason, can reduce the fluctuation for acting on the tension of tension materials.

Existing technical literature

Patent document

Patent document 1: No. 3728576 bulletins of Japanese Patent No.

Patent document 2: No. 4255670 bulletins of Japanese Patent No.

Summary of the invention

(1) technical problems to be solved

In the chair described in patent document 1,2, only the direction for the fastening strip that will be tightened inwardly is being hindered to be formed Locking protrusion.If being drawn however, it is known that actually attempting for tension materials to be located on padded coaming and substrate by fastening strip The peripheral part of tight tension materials can be not only displaced along the direction that will be tightened inwardly, also can be along the side that will be expanded outward To displacement.

As its reason, for example, substrate or padded coaming be in substantially rectangular shape under overlooking visual angle, if tension materials Peripheral part is tensed by fastening strip, then and corresponding to the adjacent corner of substrate or padded coaming on the peripheral part of tension materials Position most can consumingly be stretched by fastening strip.However, the straight line between the corner of the adjoining on the peripheral part of tension materials Corresponding position near portion, drawing force opposite will weaken.Thus, it is expected that the position will pass through the tension of tension materials locally It will be displaced with expanding outward.

Then, the object of the present invention is to provide a kind of chair, make it possible to suitably limit fastening strip and tension The displacement of the peripheral part of material is able to suppress tension materials positional shift.

(2) technical solution

In order to solve the above-mentioned technical problem, chair of the invention is the chair for having weight bearing supporting mass, the weight bearing bearing Body has substrate, padded coaming, tension materials and fastening strip, and the substrate constitutes skeleton portion；The padded coaming configuration exists Substrate surface side；The tension materials are at least laid with the lateral surface of covering padded coaming and the outer peripheral edge portion of substrate；The fastening Band is inserted into the peripheral part of tension materials, in the state of the outer peripheral edge portion of the lateral surface and substrate of tension materials covering padded coaming Under, in the back side of substrate end each other is tensed and be bundled, in the chair, on substrate, restricted be tightened up is set The first locking mechanism that fastening strip is displaced to substrate center direction and the fastening strip that is tightened up of limitation are to substrate outside Mechanism is engaged to the second of displacement.

As a result, tension materials cover padded coaming lateral surface and substrate outer peripheral edge portion in the state of, if insertion The fastening strip of tension materials peripheral part is tightened up in the back side of substrate, then fastening strip will to the displacement in substrate center direction It is limited by the first locking mechanism, while displacement of the fastening strip to substrate lateral direction will be limited by the second locking mechanism. Therefore, limit the peripheral part of tension materials by the displacement tightened inwardly, the displacement to expand outward also will be by Limitation.

Can also, substrate is formed as substantially rectangular with straight line portion between quadrangle is with corner and corner, Corner is provided with the first locking mechanism, the second locking mechanism is provided at least part of straight line portion.

In this case, the state of the lateral surface of padded coaming and the outer peripheral edge portion of substrate is covered in tension materials Under, if the fastening strip of insertion tension materials peripheral part is tightened up in the back side of substrate, incited somebody to action in substrate corners fastening strip The direction displacement that can be tightened inwardly, the direction expanded outward is displaced by tension materials in a part of substrate straight line portion. At this point, each displacement of fastening strip is limited by the first locking mechanism and the second locking mechanism.It therefore, can be in any of substrate Position suitably prevents rolling for tension materials.

Or such as flowering structure: the first locking mechanism have from substrate back support or oppose side direction the first side wall outstanding, And to substrate lateral direction the first highlighted wall outstanding near the jag of the first side wall；Second locking mechanism has from base Back support or oppose side direction second sidewall outstanding and near the jag of second sidewall it is outstanding to substrate interior direction Second highlighted wall.

In this case, the abjection of fastening strip or tension materials peripheral part is practical by the first highlighted wall and the second highlighted wall Ground limitation.In addition, even if not supported directly with the first highlighted wall or the second highlighted wall in the peripheral part of fastening strip or tension materials In the case where connecing, the displacement of fastening strip or tension materials will be also limited by the first side wall or second sidewall.

Can also, it is formed in substrate back along the circumferentially continuous chase slot of substrate, the first side wall is by chase slot The wall of side is constituted, and second sidewall is made of the wall in the outside of chase slot.

In this case, when installing tension materials, the peripheral part of fastening strip or tension materials can be pressed into edge In the circumferentially continuous chase slot of substrate, while the peripheral part of fastening strip or tension materials being configured in the first highlighted wall or second The inside of highlighted wall.Therefore, it can easily be done the installation of tension materials.In addition, due to fastening strip or tension materials Peripheral part is configured in along the circumferentially continuous chase slot of substrate, therefore is more difficult to roll tension materials.

It is preferred that the first highlighted wall is spaced on the extending direction of fastening strip with the second highlighted wall and configures adjacent to each other.

In this case, though extend the first highlighted wall and the second highlighted wall length, will not make the first highlighted wall with The front end of second highlighted wall is in contact with each other.Therefore, in the length for sufficiently extending the first highlighted wall and the second highlighted wall, to install When the peripheral part of fastening strip or tension materials, the first highlighted wall and the second highlighted wall can be made to be easy to deflection deformation.Therefore, by This can easily be done the installation of tension materials.

Preferably, the first highlighted wall for being provided adjacent to and the second highlighted wall, each front end extend to the first side wall and the Two side walls are at the position of the length of the substantially half of the interval width on the direction that the extending direction with fastening strip intersects.

In this case, the width on direction is being deviate from the region due to peripheral part and fastening strip configured with tension materials Wealthy range is covered by the first highlighted wall and the second highlighted wall, therefore can effectively prevent falling off for tension materials peripheral part.Separately Outside, tension materials the operation between the first side wall and second sidewall is put into also to be difficult to be hindered by the first highlighted wall or the second highlighted wall Hinder.

The front end of first highlighted wall and the second highlighted wall also can be only fitted in relative position.

In this case, since the front end of the first highlighted wall and the second highlighted wall is oppositely disposed, even if bracket The direction of displacement of peripheral part of band or tension materials changes, also can by the first highlighted wall with it is any in the second highlighted wall One side effectively limits the displacement of fastening strip or tension materials peripheral part.

First highlighted wall and the second highlighted wall are also configurable to one a part of relative to each other and remaining of front end Divide and is spaced on the extending direction of fastening strip.

In this case, even if fastening strip or the direction of displacement of tension materials peripheral part change, can also be passed through Either side in one highlighted wall and the second highlighted wall effectively limits the displacement of fastening strip or tension materials peripheral part.Separately Outside, since the first highlighted wall and the second highlighted wall are set as a part of only front end opposite to each other, remaining a part is tight Gu be spaced on the extending direction of band, therefore the first highlighted wall and the second highlighted wall are prolonged along the extending direction of fastening strip longlyer It stretches.Therefore, when installing the peripheral part of fastening strip or tension materials, it is easy to make the first highlighted wall and the second highlighted wall bending deformation Shape.Therefore, thus, it is possible to be easy to carry out the installation of tension materials.

(3) beneficial effect

According to the present invention, it is restricted the peripheral part of tension materials by the displacement tightened inwardly, it will be outside The displacement of side expansion can be also restricted, therefore can more effectively suppress the positional shift of tension materials.

Detailed description of the invention

Fig. 1 is the side view of the chair of first embodiment of the invention.

Fig. 2 is perspective view in the state of laying down the chair foot of first embodiment of the invention.

Fig. 3 is the bottom view of the substrate of first embodiment of the invention.

Fig. 4 is the perspective view of the substrate of first embodiment of the invention from the left diagonally forward side of lower part.

Fig. 5 is the enlarged drawing of the part V in Fig. 3 of the pedestal of first embodiment of the invention.

Fig. 6 is sectional view corresponding to VI-VI section in Fig. 3 of the pedestal of first embodiment of the invention.

Fig. 7 is sectional view corresponding to VII-VII section in Fig. 3 of the pedestal of first embodiment of the invention.

Fig. 8 is the bottom view of the main portions of the substrate of second embodiment of the present invention.

Fig. 9 is the bottom view of the main portions of the substrate of third embodiment of the present invention.

Figure 10 is the bottom view of the main portions of the substrate of the 4th embodiment of the invention.

Specific embodiment

In the following, embodiments of the present invention will be described with reference to the accompanying drawings.In addition, in the following description, it will be with regular Posture occupy the people on chair just facing towards figure in arrow FR meaning direction be referred to as " preceding ", by side in contrast Direction is referred to as " rear ".In addition, about "upper", "lower" and "left", "right", by the top of the people occupied with regular posture on chair Figure in the direction of arrow UP meaning be referred to as "upper", the direction of side in contrast is referred to as "lower", will be directed toward with regular posture The direction for occupying arrow LH meaning in the figure in the left side of the people on chair 1 is referred to as " left side ", and the direction of side in contrast is claimed Make on " right side ".

Firstly, being illustrated to first embodiment shown in FIG. 1 to FIG. 7.

Fig. 1 shows the integrally-built side view for indicating the chair 1 of present embodiment, and Fig. 2 is that one is laid down from obliquely downward The perspective view of the chair 1 of section components.

As shown in these figures, the chair 1 of present embodiment has the foot 2 being positioned on the F of floor, foot 2 is arranged in The seat of pedestal 4 that the box-like support pedestal 3 of upper end, occupant take a seat, the upper surface for being mounted on support base 3 and supporting seat 4 Body bearing part 5 and posteriorly upper side extends and supports and occupies the occupant back of pedestal 4 from support base 3 Seat back portion 6.

Foot 2 has more foot-supporting frames 7 of foot wheel 7a, is used as elevator from the setting of the central portion of more foot-supporting frames 7 is simultaneously built-in The socle 8 of the pneumatic spring of structure, support base 3 are rotatably installed in the upper end of socle 8 in the horizontal direction.Support base 3 In be built-in with the lift adjustment mechanism of socle 8 and seat back portion 6 fascinates adjustment mechanism.Seat back portion 6 has side observation in substantially L word The chair back bearing support 9 of shape and be mounted on before the upper back of chair back bearing support 9 and directly bearing occupy pedestal 4 The front lower ends of the chair back main body 10 of the back of occupant, chair back bearing support 9 are connected with the adjustment mechanism that fascinates in support base 3 It connects.

In addition, appended drawing reference 11 is the pivot fulcrum of the chair back bearing support 9 in support base 3, appended drawing reference 12 in Fig. 1, Fig. 2 Operation knob for the adjustment mechanism that fascinates being provided projectingly in the side of support base 3.In addition, the appended drawing reference 90 in Fig. 1 is As supplemental parts, it is mounted in the handrail of the lower surface of the left and right sides of pedestal 4.

Fig. 3 is the bottom view of pedestal 4.In the present embodiment, pedestal 4 constitutes the weight bearing branch of the chair 1 of present embodiment Hold body.

Pedestal 4 has the substrate 13 for constituting skeleton portion, the fender being made of polyurethane etc. for being mounted on 13 top of substrate Material 14, and the tension materials 15 of the outer peripheral edge portion from the lateral surface of padded coaming 14 covering substrate 13.In addition, in Fig. 3, tension Material 15 is indicated with to illustrate convenient imaginary line.

Fig. 4 is the perspective view of the substrate 13 from obliquely downward.

Substrate 13 is formed by flexible synthetic resin, is formed as quadrangle in the case where overlooking visual angle and is had rounded corner substantially Rectangle.That is, substrate 13 is set as following outer shape: quadrangle being provided with corner 13a with rounded corners, and in adjacent corner 13a is each configured with straight line portion 13b each other.In periphery lower surface of the substrate 13 in addition to the middle section except back, It is provided projectingly the continuous shelter wall 16 for having both reinforcement rib downward.The shelter wall 16 play effect be hide from Observe the lower surface of substrate 13, and the deflection deformation that 13 whole region of restricting substrate is excessive in side.In addition, under than substrate 13 The region of the shelter wall 16 on surface more in the inner part, is provided projectingly the projecting height extended in the longitudinal direction at substantially equal intervals Lower more reinforcement ribs 23.

Substrate 13 is maintained at the seat bearing part 5 being fixed in support base 3 in which can slide back and forth.

As shown in Fig. 2, being tiltably equipped with the front-rear position for locking pedestal 4 in the side in the left side of substrate 13 Locking level 21.Multiple lock holes 35 are formed on seat bearing part 5, it is any by the way that the front end of locking level 21 to be embedded in Lock hole 35 lock the sliding position of substrate 13.22 1 bodily form of release operation knob that the locking level 21 and operator grasp At in base end side.

Fig. 5 is the figure for the part V that amplification indicates Fig. 3, and Fig. 6, Fig. 7 are VI-VI section and VII-VII section institute for indicating Fig. 3 The figure in corresponding section.

In the peripheral part 15a of the tension materials 15 of the lower face side coiling configuration of 13 peripheral part of substrate, it is provided with circumferentially Bag-shaped insertion hole portion 17.It is inserted into a part fracture of the hole portion 17 in the circumferential direction of the peripheral part 15a of tension materials 15, it is disconnected from this Split partial insertion fastening strip 18.Fastening strip 18 is in tension materials 15 from the lateral surface of padded coaming 14 to the periphery of substrate 13 In the state that edge is packed in, the peripheral part 15a of tension materials 15 is tensed in the lower face side of substrate 13, in this state with rule Fixed tension is bundled both ends 18a, 18a.

Herein, chase slot 19 circumferentially, the periphery of tension materials 15 are formed in the outer peripheral edge portion lower surface of substrate 13 Portion 15a is embedded in the chase slot 19 together with fastening strip 18.

Chase slot 19 by the following table from substrate 13 downwards cyclic annular the first side wall 24 outstanding and with first side From 13 following table of substrate, cyclic annular second sidewall 25 outstanding is formed downwards for the position of the outside separation of wall 24.In present embodiment In, a part of the first side wall 24 is formed continuously in the root side of shelter wall 16.Shelter wall 16 is in the first side wall 24 conversely speaking, Jag be formed continuously.

Region corresponding to each corner 13a with substrate 13 in the first side wall 24 and with corresponding to the 13b of straight line portion Region in, be provided near the jag of the first side wall 24 to 13 lateral direction of substrate multiple first highlighted walls outstanding 26.On the other hand, the straight line portion 13b institute with straight line portion 13b and toe lateral at left and right sides of substrate 13 in second sidewall 25 In corresponding region, it is provided near the jag of second sidewall 25 prominent to 13 interior direction of substrate outstanding multiple second Wall 27.

In the present embodiment, the first side wall 24 and the first highlighted wall 26 are construed as limiting the fastening strip 18 that is tightened up to base First locking mechanism of plate center position displacement, second sidewall 25 and the second highlighted wall 27 are construed as limiting the fastening strip being tightened up 18 the second locking mechanisms being displaced to substrate lateral direction.

It is arranged in prominent with first in region corresponding to the straight line portion 13b of the left and right sides and the straight line portion 13b of toe lateral It is adjacent to each other to be spaced predetermined distance on (fastening strip 18) extending direction of chase slot 19 for wall 26 and the second highlighted wall 27 out Configuration.In other words, the first highlighted wall 26 and the second highlighted wall 27 clip chase slot 19 in (plover shape) configuration in a zigzag.

Herein, it is provided adjacent in region corresponding with the straight line portion 13b of straight line portion 13b and toe lateral of the left and right sides First highlighted wall 26 and the second highlighted wall 27 are as shown in figure 5, each front end extends to the chase groove width for reaching chase slot 19 Substantially at the position of the length of half.

In the chair 1 of present embodiment, padded coaming 14 is configured on the substrate 13 and tension material is installed in these positions In the case where material 15, firstly, to be packed in tension materials 15 at the lateral surface of padded coaming 14 and the outer peripheral edge portion of substrate 13 Mode covers, and in the lower face side of substrate 13, the peripheral part 15a of tension materials 15 is embedded in substrate with fastening strip 18 together In 13 chase slot 19.At this point, making fastening strip 18 and tension materials 15 in the straight line portion 13b of each corner 13a and rear portion side Peripheral part 15a is across only the first highlighted wall 26 and is pressed into chase slot 19.On the other hand, the left and right sides straight line portion 13b and The straight line portion 13b of toe lateral keeps the peripheral part 15a of fastening strip 18 and tension materials 15 prominent across the first highlighted wall 26 and second Wall 27 is pressed into chase slot 19 out.

Then, in this case, extracted out using specific purpose tool tension from the insertion hole portion 17 of 15 peripheral part of tension materials The both ends of fastening strip 18 mutually are bundled by 18 both ends of fastening strip in this state.In addition, operator Manual operations can be carried out to tense fastening strip 18.In this way, if the both ends of fastening strip 18 are tensed, in each of substrate 13 Region corresponding to the corner 13a and straight line portion 13b at rear portion makes the peripheral part 15a of fastening strip 18 and tension materials 15 will be to The displacement of substrate center direction, the region corresponding to the straight line portion 13b of 13 left and right sides of substrate and the straight line portion 13b of toe lateral, Making a part is being displaced to substrate lateral direction for the peripheral part 15a of fastening strip 18 and tension materials 15, and makes another portion Dividing will be displaced to substrate center direction.At this point, the peripheral part 15a of fastening strip 18 and tension materials 15 is to substrate center direction Displacement can be limited by the first side wall 24 and the first highlighted wall 26, and the peripheral part 15a of fastening strip 18 and tension materials 15 is to substrate The displacement of lateral direction can be limited by second sidewall 25 and the second highlighted wall 27.

As described above, in the chair 1 of present embodiment, in 13 lower surface of substrate of pedestal 4, except as the first locking machine Except the first side wall 24 of structure and the first highlighted wall 26, the second sidewall also in place being provided with as the second locking mechanism 25 and second highlighted wall 27, therefore limit the peripheral part 15a of tension materials 15 by the displacement tightened inwardly, it will The displacement expanded outward also can be by limitation appropriate.Therefore, tension materials 15 can more be effectively suppressed to various directions It rolls.

Especially in the chair of present embodiment 1, since the wall thickness for the padded coaming 14 being overlapped in upper surface is thicker At the straight line portion 13b of the left and right sides of the substrate 13 and straight line portion 13b of toe lateral, it is provided with second sidewall 25 and the second highlighted wall 27, therefore, it can suitably limit what the peripheral part 15a of the adjoint tension materials 15 of fastening of fastening strip 18 expanded outward Displacement.

In addition, the first locking mechanism is by 26 structure of the first side wall 24 and the first highlighted wall in the chair 1 of present embodiment At the second locking mechanism is made of second sidewall 25 and the second highlighted wall 27, therefore, prominent by the first highlighted wall 26 and second The peripheral part 15a that wall 27 can effectively limit tension materials 15 deviates from from chase slot 19.Moreover, even if fastening strip 18 or The peripheral part 15a of dead-wood material 15 is not abutted directly with the first highlighted wall 26 or the second highlighted wall 27, can also pass through chase slot 19 Wall, that is, the first side wall 24 and second sidewall 25 limit the displacement of fastening strip 18 or tension materials 15.

In turn, in the chair of present embodiment 1, in the lower surface of substrate 13, along the circumferentially continuous side of substrate 13 Formula is provided with chase slot 19, and the first side wall 24 is made of the inner sidewall of the chase slot 19, meanwhile, by the lateral wall structure of chase slot 19 At second sidewall 25.It therefore, can be on one side by the peripheral part of fastening strip 18 or tension materials 15 when installing tension materials 15 15a is continuously pressed into the chase slot 19 on substrate 13, on one side easily by the peripheral part 15a of fastening strip 18 or tension materials 15 Configuration is in the inside of the first highlighted wall 26 or the second highlighted wall 27.Therefore, it can easily be done the installation of tension materials 15.Into And since displacement of the peripheral part 15a of fastening strip 18 or tension materials 15 in continuous chase slot 19 is limited, so as to Tension materials 15 are enough made to be more difficult to roll.

But continuous chase slot 19 may not necessarily be also formed in the lower surface of substrate 13.Can also be as shown in Figure 8 the Two embodiments are such, by the first side wall 124 of narrower width and second sidewall 125 along the extending direction of fastening strip 18 Mode be intermittently provided projectingly in the lower surface of substrate 113, in each jag of the first side wall 124 and second sidewall 125 It is continuous respectively nearby that the first highlighted wall 126 and the second highlighted wall 127 are set.

In addition, the first highlighted wall 26 and second being arranged on the 13b of straight line portion is prominent in the chair 1 of present embodiment Wall 27 is spaced on the extending direction of fastening strip 18 and configures adjacent to each other.Therefore, not will lead to the first highlighted wall 26 with The front end of second highlighted wall 27 is in contact with each other, and can sufficiently extend the length of the first highlighted wall 26 and the second highlighted wall 27. Therefore, it when installing the peripheral part of fastening strip 18 or tension materials 15, can be easy to keep the first highlighted wall 26 and second prominent 27 deflection deformation of wall.Therefore, thus it enables that the installation of tension materials 15 becomes easy.

Especially in the present embodiment, the first highlighted wall 26 and the second highlighted wall 27 being provided adjacent to straight line portion, respectively Front end extends to the substantially half of the groove width (interval width of the first side wall 24 and second sidewall 25) of chase slot 19 At the position of length.Therefore, the broad scope of chase slot 19 can be blocked by the first highlighted wall 26 and the second highlighted wall 27, To effectively prevent the peripheral part 15a (fastening strip 18) of tension materials 15 to fall off out of chase slot 19.In addition, such as present embodiment Like that, even if each front end of the first highlighted wall 26 and the second highlighted wall 27 to be extended to the big of the groove width of chase slot 19 When causing at the position of half, fastening strip 18 is set to pass through if being set as minimally, by the periphery of tension materials 15 The operation that portion 15a is put into chase slot 19 will not be hindered by the first highlighted wall 26 and the second highlighted wall 27.

Fig. 9 is the figure for indicating the main portions lower surface of substrate 213 of third embodiment of the present invention.

In the present embodiment, the front end configuration of the first highlighted wall 226 and the second highlighted wall 227 of straight line portion is set In relative position.

In this case, the front end of the first highlighted wall 226 and the second highlighted wall 227 is relatively matched It sets.It therefore, also can be prominent by first even if the direction of displacement of the peripheral part 15a of fastening strip 18 or tension materials 15 changes Either side in wall 226 and the second highlighted wall 227 out, to effectively limit the peripheral part of fastening strip 18 or tension materials 15 The displacement of 15a.

Figure 10 is the figure for indicating the lower surface of the main portions of substrate 313 of the 4th embodiment of the invention.

In the present embodiment, the front end of the first highlighted wall 326 on straight line portion and the second highlighted wall 327 is set It is a part of opposite each other, and remaining a part is spaced configuration on the extending direction of fastening strip 18.

In the present embodiment, even if the direction of displacement of the peripheral part 15a of fastening strip 18 or tension materials 15 changes, It can be by the either side in the first highlighted wall 326 and the second highlighted wall 327, to effectively limit fastening strip 18 or tension The displacement of the peripheral part 15a of material 15.

In addition, due to the first highlighted wall 326 and the second highlighted wall 327 only front end a part opposite to each other, it is remaining A part is spaced on the extending direction of fastening strip 18, therefore the first highlighted wall 326 and the second highlighted wall 327 are along fastening strip 18 extending direction substantially extends.Therefore, it when installing the peripheral part 15a of fastening strip 18 or tension materials 15, can be easy Ground makes 327 deflection deformation of the first highlighted wall 326 and the second highlighted wall.Therefore, it is readily able to carry out the installation of tension materials 15.

The present invention is not limited to above-mentioned embodiments, are able to carry out various set without departing from the scope of the subject in the invention Meter change.For example, the supporting mass that bears a heavy burden in above-mentioned embodiment is pedestal, but can also chair back ontology to seat back portion use phase Same structure.

Industrial applicibility

Chair according to the present invention is restricted the peripheral part of tension materials by the displacement shunk inwardly, will The displacement expanded outward also can be suitably restricted, therefore can more effectively suppress the positional shift of tension materials.

Description of symbols

1 chair

4 pedestals (weight bearing supporting mass)

13,113,213,313 substrate

14 padded coamings

15 tension materials

18 fastening strips

19 chase slots

24,124 the first side wall

25,125 second sidewall

26,126,226,326 first highlighted wall

27,127,227,327 second highlighted wall

Claims

1. a kind of chair, has a weight bearing supporting mass, the weight bearing supporting mass has substrate, padded coaming, tension materials and tight Gu band, the substrate constitutes skeleton portion；The padded coaming configuration is in the substrate surface side；The tension materials are at least spread If covering the lateral surface of the padded coaming and the outer peripheral edge portion of the substrate；The fastening strip is inserted into the tension materials Peripheral part, the tension materials cover the padded coaming lateral surface and the substrate outer peripheral edge portion in the state of, The back side of the substrate tenses and is bundled end each other, in the chair,

The substrate is formed as substantially rectangular with straight line portion between quadrangle is with corner and corner；

It is formed in the substrate back along the circumferentially continuous chase slot of the substrate, the chase slot is by from the substrate back The side direction that supports or opposes cricoid the first side wall outstanding and with the position that is separated on the outside of the first side wall from the substrate The back side side direction cricoid second sidewall outstanding that supports or opposes is formed；

It is corresponding with the corresponding region in each corner of the substrate and with each straight line portion in the first side wall Region in, be provided near the jag of the first side wall prominent to the substrate lateral direction outstanding multiple first Wall；

It is corresponding with the straight line portion of the straight line portion and toe lateral at left and right sides of the substrate in the second sidewall Region in, be provided near the jag of the second sidewall prominent to the substrate interior direction outstanding multiple second Wall；

The first side wall and first highlighted wall constitute the first locking mechanism, with limit the fastening strip being tightened up to The displacement of substrate center direction, the second sidewall and second highlighted wall constitute the second locking mechanism, are tightened up with limitation Displacement of the fastening strip to substrate lateral direction；

On the straight line portion of the substrate for being provided with first highlighted wall and second highlighted wall, described first is prominent Out wall and second highlighted wall on the straight line portion of the substrate on the extending direction of the fastening strip interval and that This is adjacent, in configuration in a zigzag.

2. chair according to claim 1, which is characterized in that first highlighted wall being provided adjacent to is prominent with described second Wall out, each front end extends to the first side wall and the second sidewall is intersected in the extending direction with the fastening strip Direction on interval width substantially half length position at.