JP2014097179A - Body pressure supporting member, and chair having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair having a surface material mounted on a seat plate by a string material and made into a flip-up type for preventing the beauty from being deteriorated, even in the case where the lower face is exposed to an observation.SOLUTION: A seat plate 6 is formed in its lower face with an annular groove 63 opened downward, and the peripheral edge of a surface material 8 and a string material 66 attached thereto are fitted in the annular groove 63. This annular groove 63 is formed with a pawl 68, by which an exposed portion of the string material 66 is caught so that it cannot come out. A tube 69 made of a soft material is fitted in the annular groove 63. As a result, the edge of the surface material 8 and the string material 66 are hidden from the views of human eyes, and the presence itself of the annular groove 63 is hardly visible. As a result, a seat 2 does not deteriorate beauty even if it is of the flip-up type.

Description

  The present invention relates to a body pressure support such as a chair and a seat and a backrest constituting the chair. Here, the body pressure support includes not only a seat and a backrest, but also a headrest, a shelder rest, an elbow rest, and the like.

  For example, taking a chair seat as an example, a cushion material is often stretched on the upper surface of a seat plate made of resin or the like. Similarly, the backrest often has a configuration in which a cushion material is stretched on the front surface of the resin back plate. In any case, the cushion material is covered with a skin material such as cloth or leather, and the periphery of the skin material is fixed to the back surface of the seat plate or back plate (the bottom surface for the seat plate, the back surface for the back plate). Has been.

  As a means for attaching the skin material to the seat plate or the back plate, there are a method of fixing with a tucker and a method of fixing with a string material. The fixing method with a string material is easy to work and easy to dispose of after disposal. There are certain advantages. The string material is inserted in the cylindrical part formed on the periphery of the skin material, but the string material is exposed to the fly, and this exposed part is locked to the engaging part formed on the back surface of the seat plate or the back plate. There are many.

  On the other hand, there is also a processing method that does not use a string material or a tucker. For example, in Patent Document 1, in a vehicle seat, a peripheral portion of an outer skin material is fitted into a groove formed in a seat frame, and then fitted into the groove. It is disclosed that the edge portion of the skin material is pressed and fixed in the groove by fitting.

Japanese Utility Model No. 58-156458 microfilm

  Although the thing of patent document 1 can be said to be able to clean the edge of a skin material beautifully, when a fitting body removes for some reason, there exists a problem that fixation of a skin material will be cancelled | released and a skin material will remove | deviate, Therefore realistic In other words, the skin material must be bonded to the cushion material. This not only increases the labor of manufacturing, but also makes separation after disposal difficult.

  Therefore, it is preferable to attach using a string material, but for example, in the case of a nesting type chair that flips up the seat, when the seat is flipped up, the back surface is exposed and the exposed string is exposed to the human eye. There is a possibility of damage. Regarding this point, it is conceivable to cover the entire periphery of the skin material with a cover having a large area, but this causes another problem that the cost increases.

  The present invention has been made to improve the current situation.

  The invention of this application is specified by each claim. Among these, the invention of claim 1 has a load receiving plate to which body pressure is applied, a cushion material arranged on the surface thereof, and a skin material covering the cushion material, and a loop-like string is provided around the cushion material. In a configuration in which a material is attached and the string material is locked to a locking portion provided on the back surface of the load receiving plate, the outer peripheral edge of the skin material and the string material are covered on the back surface of the body pressure support. An elongated edge member is mounted.

  According to a second aspect of the present invention, the invention according to the first aspect is suitably embodied. In the present invention, the locking portion is an annular groove, and the string member is held in the annular groove so as not to be detached. A pawl is formed by jumping, and the edge member is fitted in the annular groove. The annular groove means that it extends along the outer periphery of the load receiving plate and does not have to be a complete loop.

  As a specific example of the invention of claim 2, in claim 3, the edge member is made of a hollow tube or bar made of an elastic material.

  The present invention also includes a chair, and the chair includes a leg device that can be fitted back and forth, and a seat and a backrest supported by the leg device. It is possible to nest back and forth by jumping up and down.

  In addition, the “string material” of the present invention is a generic name for an elongate shape to which a skin material can be attached, and the material is not limited. Therefore, the metal wire is also included. The binding means is not limited to binding, and in the case of a metal material or a resin material, it can also be screwed and stopped. Regardless of the material, the means for holding the loop is not limited to being tied or twisted, but it is also possible to attach a hooking member to one end and the other end and engage them. . A tie may be used.

  According to the present invention, it is possible to easily attach the skin material using the string material, and to improve the aesthetics by covering the periphery of the skin material, the exposed portion of the string material, or the locking portion of the string material with the edge member. Therefore, when applied to a flip-up seat as in claim 4, the true value is particularly exhibited.

  The means for fixing the string material can be embodied in various ways, but if the structure in which the peripheral edge of the skin material and the string material are fitted in the annular groove as in claim 2, it can be firmly attached in a state where it cannot be easily removed. In addition, since the annular groove is closed by the edge member, it is excellent in aesthetics. Further, since the edge member can be attached simply by being pushed into the annular groove against elasticity, the attachment of the edge member can be performed quickly and easily. Furthermore, since the edge member can also exert a function of preventing the skin material and the string material from coming off, it can contribute to an improvement in the attachment strength of the skin material.

  When a tube or a bar is used as the edge member as in claim 3, it is advantageous in terms of cost because a commercially available product for various uses can be used as it is.

It is a perspective view of the chair which concerns on embodiment, (A) is the whole perspective view of the state which fell down the seat, (B) is the whole perspective view in the state which flipped up the seat, (C) is a partial backrest FIG. The perspective view of the state which isolate | separated the seat, (B) is a perspective view of a seat receiving part. (A) is a separated perspective view showing the relationship between the seat and the slider, (B) is a partial perspective view from the bottom of the rear of the seat, and (C) is a partial perspective view of the rear of the seat as seen from above. It is a bottom view of a seat. (A) is a bottom view of the seat plate, (B) is a partial view of the skin material. (A) is AA sectional view taken on the line of FIG. 5, (B) is BB sectional drawing of FIG. (A) is a perspective view before the cover is tilted, and (B) is a perspective view in a state where the cover is tilted. It is a perspective view of the chair which flipped up the seat part.

(1). Outline of Chair Next, an embodiment of the present invention will be described with reference to the drawings. First, an outline of the chair will be described with reference to FIGS. In the following description, the words “front and rear” and “left and right” are used to specify the direction, but the front and rear and left and right are based on a state viewed from a person who normally sits on a chair. The front view direction is the direction facing the seated person.

  As shown in FIG. 1, the chair includes a leg device 1, a seat 2, and a backrest 3 as large elements, and the seat 2 is attached to a movable base 4 that is flipped up and rotated. Therefore, the seat portion 5 is configured with the seat 2 and the movable base 4 as main elements. As shown in FIG. 1A, the seat 2 includes a resin seat plate (seat inner shell) 6 and a seat cushion material 7 stretched on the upper surface thereof. Covered with material 8. As shown in FIG. 2, a large number of reinforcing ribs 9 are provided on the upper surface of the movable base 4.

  The leg device 1 is made of a metal pipe such as a steel pipe or an aluminum pipe, and has a four-leg system having left and right front legs 10 and left and right rear legs 11. Casters 12 are attached to the front and rear legs. At the upper end of the front foot 10, an upper side portion 14 extending rearward in a posture slightly tilted forward with respect to the horizontal is formed by bending, and the rear end of the upper side portion 14 is butted against a portion near the upper end of the rear foot 11 and welded. It is fixed with.

  The front ends of the left and right upper side portions 14 are connected by a laterally long horizontal hook 15. As shown in FIG. 1B, a recess 4a is formed on the lower surface of the movable base 4 in which the left and right intermediate portions of the horizontal bar 15 are fitted. The upper end of the rear foot 11 is a free end, and an upper support shaft 17 whose axis is horizontally horizontal is fixed to the upper end by welding, and the backrest 3 is connected to the upper support shaft 17 so as to be tilted backward. Yes. A support frame 19 is formed by extending the rear foot 11 upward.

  The left-right distance between the left and right hind legs 11 is larger than the left-right distance between the left and right front legs 10, so that the legs of the front and rear chairs can be fitted together (nested) with the seat 5 flipped up. It has become. As shown in FIG. 2, the movable base 4 includes a shallow box-shaped main body 21 that is rectangular in plan view, and a square arm 22 that protrudes upward while spreading outward from the rear portion of the main body 21.

  A boss portion (bearing portion) 23 projecting leftward and rightward is integrally provided at the upper end of the square arm 22, and the boss portion 23 is rotatably connected to the middle portion of the support frame 19. Thereby, the seat part 5 will be in the state flipped up (folded) like FIG. 1 (B).

  As shown in FIG. 1 (C), the backrest 3 includes a backrest main body (main frame) 29 having a large opening in the front-rear direction, and a support body 30 attached to the backrest main body 29 so as to cover the opening. Yes. A back cushion material 31 is stretched on the front surface of the support body 30. An outward projecting portion 29a projecting outward in the left and right directions is formed in a lower portion of the backrest body 29, and a bearing portion 32 that fits the upper support shaft 17 is formed at the outer end of the outward projecting portion 29a. doing.

  When the backrest 3 tilts backward, the seat 2 moves forward. Accordingly, the seat 2 is attached to the movable base 4 so as to be slidable back and forth. Specifically, as shown in FIG. 2, a pair of left and right sliders 36 is mounted on the movable base 4 so as to be movable back and forth, and the seat plate 6 is mounted on the left and right sliders 36 so as not to be movable relative to the front and rear. Accordingly, the seat 2 moves relative to the slider 36. The forward movement of the slider 36 is elastically supported by a spring (not shown). In the present embodiment, the seat plate 6 is an example of a body pressure support.

  Further, left and right horizontally long support stays 40 made of metal plates are fixed to the rear end portions of the left and right support frames 19 with screws 41, and upward passive arms 42 are bent and formed at both left and right ends of the support stay 40. On the other hand, a pocket-like pushing portion (holder portion) 43 that fits on the passive arm 42 of the support stay 40 from above is provided at the lower end portion of the backrest body 29. A resin-made crown member 44 is attached to the upper end of the passive arm 42, and the crown member 44 is fitted to the pushing portion 43 of the backrest main body 29.

  In the chair of the present embodiment, when the backrest 3 is locked by the seated person's leaning, the slider 36 moves forward via the support stay 40, whereby the seat 2 is synchronized (synchronized) with the locking of the backrest 3. Advance. Of the support stay 40, the fixed portion of the slider 36 is an upward bulging portion 40a, and the projecting piece 36c of the slider 36 is fixed with a screw to a stepped portion 40b formed as a recess in the upward bulging portion 40a.

  As shown in FIG. 3, on the lower surface of the seat plate 6, a pair of front and rear downward restriction bodies 59 and 60 that hold the slider 36 from the left and right are provided. A restricting portion 59a that hits the front end face is provided. Further, the seat plate 6 is provided with a stopper claw 60 that contacts the rear end of the slider 36.

  The stopper claw 60 is formed at the rear end of the tongue piece 61 facing backward with the rear end as a free end, and the rear surface of the stopper claw 60 is an inclined surface 60a that goes higher as it goes rearward. For this reason, when the seat plate 6 is overlapped with the slider 36 and shifted backward, the stopper claw 60 escapes once and then returns and deforms to the rear end surface of the slider 36 located on the left and right outer sides of the projecting piece 36c. In this manner, the seat plate 6 is held so that it cannot be displaced from front to back and from side to side.

  Furthermore, a side-view-type rear engagement claw 62 that is fitted to the front edge of the support stay 40 from the front is provided on the lower surface of the seat plate 6. The rear engaging claws 62 are provided at three positions, the left and right intermediate portions and the left and right outer sides, and the rear portion of the seat plate 6 is held immovably upward from the support stay 40 by the presence of the rear engaging claws 62. The state in which the stopper claw 60 is engaged with the slider 36 is maintained.

(2). Attachment structure of skin material / aesthetic treatment of knot of string Next, the attachment structure of the skin material 8 in the seat 2 will be described with reference to FIGS. As shown only partially in FIG. 5 (B), a cylindrical portion 65 is formed on the outer peripheral edge of the skin material 8 by sewing or the like, and a string 66 is passed through the cylindrical portion 65. The string 66 is fitted into an annular groove 63 formed on the lower surface of the seat plate 6, and one end and the other end are connected to each other at the rear end portion of the seat plate 6. A knot is indicated by reference numeral 66a. The annular groove 63 is formed by projecting the inner and outer walls downward, and is divided at the rear portion of the seat plate 6.

  The cylindrical portion 65 of the skin material 8 is cut away at appropriate intervals, and therefore the string 66 is exposed at the location of the cutout portion 67. On the other hand, as shown in FIG. 6 (A), a claw 68 is formed on the inner surface of the annular groove 63 of the seat plate 6 to which the exposed portion of the string is caught. Thus, the seat cushion material 7 and the skin material 8 are attached to the seat plate 6 by pulling and binding the both ends of the cord 66 in a state where the exposed portion of the cord 66 is hooked on the claw 68. Alternatively, the ends of the string 66 may be bound first, and then the string 66 may be fitted into the annular groove 63 and hooked on the claw 68.

  As can be understood from FIG. 1B, the lower surface of the outer peripheral portion of the seat plate 6 is exposed in a state of being flipped up, and the annular groove 63 of the seat plate 6 comes into contact with the human eye. Therefore, as shown in FIG. 6, a tube 69 made of a soft material is fitted into the annular groove 63 as an example of an edge member (closure). Thereby, the deterioration of the external appearance by the annular groove 63 and the nail | claw 68 exposed can be prevented. Further, since the edge of the skin material 8 is pressed against the outer surface of the annular groove 63, the edge of the skin material 8 appears as a sharp line, and this surface is also excellent in aesthetics.

  The tube 69 may be the same color as the seat plate 6 or the skin material 8, or may be a different color from the seat plate 6 and the skin material 8. As the edge member that closes the annular groove 63, a rod-like elasticity having a circular or square cross section, a U-shaped or U-shaped edge member, or the like can be used instead of the chirb 698. The edge member such as a tube may be divided into a plurality of pieces and fitted.

  The annular groove 63 is interrupted at the rear portion of the seat plate 6, and the knot 66 a of the string 66 is located at the left and right intermediate portion of the rear portion of the seat plate 6. Therefore, the cover piece 64 that hides the knot 66a of the string 66 is integrally formed on the seat plate 6, and the end of the string 66 is hidden by tilting the cover piece 64 as shown in FIG. Since the cover piece 64 is close to the end of the annular groove 63, the string 66 is not exposed to the outside.

  The cover piece 64 is formed in an upright posture as shown in FIG. 7A, and allows a tilting rotation by forming a base with a thin hinge portion 64a. The seat plate 6 is formed with a recess 70 into which the cover piece 64 is fitted. With the cover piece 64 fitted into the recess 70, the outer surface of the cover piece 64 is flush with the lower surface of the seat plate 6. It is set to make.

  The cover piece 64 has a rearward-facing engagement protrusion 71, while the seat plate 6 has an engagement hole 72 into which the engagement protrusion 71 is forcibly fitted. Therefore, a watermark hole 73 opened vertically is formed between the base of the cover piece 64 and the rear end of the recess 70. This is a through hole for molding the cover piece 64.

  The cover piece 64 can be configured separately from the seat plate 6 and can be fitted into the seat plate 6 by forced fitting or the like. However, if the cover piece 64 is integrally formed with the seat plate 6 as in the embodiment, the cover piece 64 is lost. In addition to eliminating this problem, it is not necessary to adjust the posture one by one, so the closing operation can be performed with one touch.

  The locking portion for stopping the string material may be a claw-like protrusion that protrudes from the lower surface of the seat plate. In this case, the group of claw-shaped projections, the exposed portion of the string material, and the peripheral edge of the skin material may be covered with an edge member. In that case, the edge member may be forcibly fitted to the claw-shaped protrusion, or another locking means may be provided.

  The present invention is actually applicable to chairs. Therefore, it can be used industrially.

DESCRIPTION OF SYMBOLS 1 Leg apparatus 2 Seat 6 Seat plate as an example of body pressure support body 8 Seat skin material 63 Annular groove 65 Cylindrical part 66 String material 66a Knot 64 Cover piece 68 Claw 70 Recess 71 Engagement protrusion 72 Engagement hole

Claims (4)

It has a load receiving plate on which body pressure is applied, a cushion material arranged on the surface thereof, and a skin material covering the cushion material, a loop-like string material is attached to the periphery of the cushion material, and the string material is It is configured to be locked to a locking portion provided on the back surface of the load receiving plate,
An elongated edge member that covers the outer peripheral edge of the skin material and the string material is attached to the back surface of the body pressure support.
Chair pressure support. The locking portion is an annular groove, and a locking claw that holds the string material in an unmovable manner is formed in a jumping manner in the annular groove, and the edge member is fitted in the annular groove.
The body pressure support body of the chair described in Claim 1. The edge member is a hollow tube or bar made of an elastic material.
The body pressure support according to claim 2. A leg device that can be fitted back and forth, and a seat and a backrest that are supported by the leg device, and that can be nested in the front and back by flipping up the seat, wherein the seat is claimed. It is a structure in any one of claim | item 1-3.
A chair with a flip-up seat.

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