WO2016063973A1 - Meubles, élément de support de charge pour chaise, et chaise - Google Patents

Meubles, élément de support de charge pour chaise, et chaise Download PDF

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Publication number
WO2016063973A1
WO2016063973A1 PCT/JP2015/079953 JP2015079953W WO2016063973A1 WO 2016063973 A1 WO2016063973 A1 WO 2016063973A1 JP 2015079953 W JP2015079953 W JP 2015079953W WO 2016063973 A1 WO2016063973 A1 WO 2016063973A1
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WIPO (PCT)
Prior art keywords
chair
load
support
tension
saddle
Prior art date
Application number
PCT/JP2015/079953
Other languages
English (en)
Japanese (ja)
Inventor
益永　浩
磯貝　義徳
浩一郎 脇園
奥田　直之
晶一 井澤
Original Assignee
株式会社岡村製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2014221256A external-priority patent/JP6552082B2/ja
Priority claimed from JP2015006732A external-priority patent/JP6552083B2/ja
Application filed by 株式会社岡村製作所 filed Critical 株式会社岡村製作所
Priority to EP15853321.6A priority Critical patent/EP3210498B1/fr
Priority to US15/520,678 priority patent/US10334953B2/en
Priority to CN201580057035.1A priority patent/CN107072398B/zh
Publication of WO2016063973A1 publication Critical patent/WO2016063973A1/fr

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back

Definitions

  • the present invention relates to furniture, a load support member for a chair, and a chair.
  • This application is filed on October 30, 2014, Japanese Patent Application No. 2014-212256, filed in Japan, October 24, 2014, Japanese Patent Application Nos. 2014-217249, filed on January 16, 2015, Claim priority based on Japanese Patent Application No. 2015-006732 filed in Japan, the contents of which are incorporated herein.
  • a load supporting member for a chair in which a tension member having an elastic resistance (repulsive force) against a load from a perpendicular direction is supported on a frame member as a strength member, and a chair including the same are disclosed in, for example, a patent. It is disclosed in Document 2.
  • a high tension in the vertical direction is secured by the warp group constituting the structure of the tension material, and a stretching force in the left-right direction is secured by the weft group composed of the molding thread and the elastic thread.
  • Patent Document 2 has a good seating feeling in which both moderate elastic resistance and expansion and contraction are compatible.
  • a warp group is indispensable to maintain the minimum strength, and in order to add a weft extending in the left-right direction in order to apply a stretching force, it is stretched between the warp and the weft.
  • the design tends to have a low degree of freedom in terms of design, although it is a member that forms an external appearance.
  • Patent Document 3 In order to solve such a problem, a configuration disclosed in Patent Document 3 can be considered.
  • the chair disclosed in Patent Document 3 two grooves having different directions are formed in the saddle material, and a plurality of tension materials are stretched on the frame member by fastening different tension materials to each groove. ing.
  • an irregular design such as adopting a material with high tension as the back side tension material and adopting a material with low tension as the surface side tension material is possible. Increased freedom.
  • a member that is smoothly connected to the operation member in appearance is disposed adjacent to the operation member, or operability is improved. Therefore, there are cases where the operation members are arranged adjacent to each other. That is, in a chair provided with an operation member, another member (adjacent member) may be provided adjacent to the operation member.
  • another member adjacent member
  • a gap may be generated between the operation member and the adjacent member.
  • Such a problem is not limited to a chair, and occurs in general furniture including an operation member whose posture is changed such as a desk that can adjust the height of the top board.
  • the present invention has been made in view of the above-mentioned problems, and in a furniture including an operation member whose posture is changed, a user's finger is sandwiched between a gap between the operation member and an adjacent member arranged adjacent to the operation member.
  • the purpose is to prevent the user from feeling uncomfortable.
  • the present invention also provides a chair load support member having a higher degree of freedom in the design of the tension member, by making it possible to support a plurality of tension members without complicating the shape of the frame member.
  • An object is to provide a chair provided.
  • the present invention adopts the following configuration as means for solving the above-described problems.
  • 1st invention is furniture provided with the operation member changed from a normal posture to an operation posture by a user's operation, and the adjacent member arranged adjacent to the operation member, The operation member or the adjacent member And a shielding portion that closes a gap generated by the operation member and the adjacent member when the operation member is in the operation posture.
  • the shielding portion when the operating member is set to the operating posture, the gap generated by the operating member and the adjacent member is closed by the shielding portion. For this reason, it can prevent that a user's finger
  • the operation member is formed into a plate shape having a horizontal axis extending in the horizontal direction and a front surface and a rear surface being directed up and down, and the tip side is raised about the axis, whereby the operation is performed.
  • An operation plate in a posture, and the adjacent member is provided with a flange that is disposed at the same height as the operation plate in the operation member in the steady posture and faces the front and back surfaces up and down.
  • the operation plate included in the operation member and the flange of the adjacent member are arranged side by side when the operation member is in a steady posture, the sense of unity between the operation member and the adjacent member is obtained. Increased and beautiful.
  • the position of the operation member is changed by moving the tip of the operation plate up and down, a gap is easily generated between the operation plate and the flange.
  • this structure is provided with the said shielding part, even in the furniture excellent in such a unity feeling, it prevents that a user's finger
  • the shielding portion protrudes downward from an edge portion on the flange side of the operation plate, and faces front and back in the arrangement direction of the operation member and the adjacent member. It consists of a shielding piece.
  • the shielding piece since it can be provided integrally with the operation plate, it is possible to provide a shielding part without increasing the number of parts. Further, when the operation plate is viewed from above, the shielding piece is not noticeable in appearance, and the aesthetic appearance is not impaired by the shielding piece.
  • the shielding piece has an inclined side that goes downward as it goes from the back side to the tip side of the operation plate.
  • the operation plate when the operation plate is arranged at a position that is difficult for the user to see, there is an increased possibility that the user's fingertip will be applied to the base of the operation plate. Since the base of the operation plate is close to the pivot, it is necessary to operate the operation plate with a very strong force when changing the posture of the operation plate with the fingertip on the base of the operation plate. On the other hand, the operability may give a bad impression.
  • the shielding piece has an inclined side that goes downward as it goes from the back side to the tip side of the operation plate.
  • the operation member can be operated with a weak force, and the operability is excellent.
  • the operation member includes a connection portion that connects the operation plate and the pivot, and a protrusion provided on a lower surface of the connection portion.
  • the operation plate can be provided further away from the pivot, and the operation plate can be operated with a weaker force. Furthermore, the protrusion part is provided in the lower surface of the connection part. For this reason, even when the operation plate is disposed at a position that is difficult for the user to see, the protruding portion prevents the user's fingertip from hanging on the lower surface of the connecting portion close to the pivot, The user's fingertip can be guided to the front end side of the operation plate that is easier to operate.
  • the second operation includes a lever that is moved along an upper surface of the flange and is rotatable by a user moving the lever.
  • a member is provided.
  • the operation member and the second operation member can be provided close to each other, the operability is excellent. Furthermore, according to this configuration, it is possible to prevent the user's finger from being caught between the operation member and the adjacent member in the furniture having excellent operability.
  • a seventh invention is a chair provided with an operation member provided on a side portion or below the seat and an adjacent member disposed adjacent to the operation member, and is any one of the first to sixth inventions. Made of furniture.
  • the user's finger is prevented from being sandwiched between the operation member and the adjacent member, and the chair does not cause discomfort to the user.
  • the chair load support member is a chair load support member provided in the chair, and is a strength member including a pair of eaves members spaced apart in parallel in the width direction of the chair.
  • the frame member, the front side tension member arranged on the load receiving surface side of the chair, and the back side tension material arranged on the opposite side of the load receiving surface are on one end edge and the width direction side in the longitudinal direction of the saddle material Joined at the edge and formed in a bag shape having an opening continuous in the width direction on the other edge in the length direction, and from one end in the length direction of the frame member to the frame member through the opening.
  • a pair of collars each of which is provided with a support portion on the inner surface facing each other, and between the pair of collars has a repulsive force against a load in the direction perpendicular to the surface
  • the interior material is installed by being supported by the support portion.
  • a face-to-face direction between a pair of eaves members is provided separately from an exterior material formed in a bag shape by joining a front side upholstery material and a backside upholstery material, which are covered with a frame member.
  • the interior material has a repulsive force against the load of. Therefore, for example, by setting the strength of the interior material to a size that can support the load of the seated person, it becomes possible to appropriately select the material of the exterior material, and the degree of freedom in design is greatly increased.
  • the exterior material is supported by the frame member so as to wrap around the saddle material with its own shape and tension, it does not require a dedicated support part, so it is inexpensive without complicating the shape of the saddle material.
  • the frame member can be formed.
  • the support portion formed on the inner side surface of the saddle member is hidden by the exterior material, it is possible to prevent the appearance from being deteriorated by the support portion.
  • the support portion has a fitting recess that opens to the load receiving surface side.
  • a support part is a fitting recessed part opened in the load-receiving surface side of the chair formed in the inner surface of each saddle member. Therefore, when forming the shape of the saddle member having such a fitting recess, it can be easily formed by arranging two molds side by side in the direction perpendicular to the load receiving surface, thereby making the frame member cheaper. It becomes possible to mold into.
  • the chair load support member wherein the support portion is composed of the support member and the support member disposed with a gap on the inner surface side of the support member, and between the support member and the support member.
  • the end of the support material on the load receiving surface side is the side opposite to the load receiving surface side of the end portion on the load receiving surface side of the part forming the fitting recess in the saddle material. It is located near. According to this configuration, the end portion of the support material on the load receiving surface side is positioned closer to the side opposite to the load receiving surface side than the end portion on the load receiving surface side of the portion forming the fitting recess in the saddle material.
  • the position of the interior material is offset to the back side of the chair rather than the end of the saddle material on the load receiving surface side. Therefore, the interior material comes into contact with the front side tension material of the exterior material from the back, and deformation of the exterior material is prevented, so that the appearance is further improved.
  • the repulsive force against the load in the direction perpendicular to the surface of the exterior member is relatively smaller than the repulsive force against the load in the direction perpendicular to the surface of the interior material.
  • the exterior material is relatively softer (less elastic resistance) than the interior material, and therefore the seating person's Even if a load is applied to the exterior material due to weight or the like, a frictional resistance is less likely to occur between the exterior material and the collar.
  • the exterior material is soft, it comes into contact with the saddle member without being in close contact, and therefore, it does not rotate with respect to the saddle member even with respect to a load from the direction perpendicular to the surface.
  • a relatively hard interior material secures the force to support the occupant's body, but this interior material is installed between the opposing surfaces of the saddle material, so it may interfere with the bag-like exterior material. Absent.
  • the spacer face material in the chair load support member, is disposed between the front side surface material and the interior material, and the repulsive force against the load in the direction perpendicular to the surface of the spacer face material is It is relatively smaller than the repulsive force with respect to the load in the direction perpendicular to the surface of the interior material.
  • the spacer face material having a smaller repulsive force than the interior material is disposed between the front-side tension material and the interior material.
  • the chair load support member is seated by the interior material in a state in which the deflection of the spacer face material is added to the deflection of the exterior material. Since the weight of the spacer is supported, the softness at the time of sitting increases due to the bending of the spacer face material, and the seating feeling becomes better.
  • the spacer face material makes it difficult for the upper edge portion of the exterior material to directly hit the upper edge portion of the interior material, and therefore the upper edge portion of the exterior material may extend even when used continuously for a long time. It is suppressed.
  • the spacer face material continuously covers from the surface side of the interior material to the surface side of the collar. According to this configuration, since the spacer face material continuously covers from the surface side of the interior material to the surface side of the eaves material, the spacer face material fills the space between the interior material and the eaves material. The effect of the step is reduced. Therefore, there is no possibility that an uncomfortable feeling will occur on the back of the seated person due to this step.
  • the spacer face material is integrally attached to the back surface of the front side tension material.
  • the frame member is covered with the exterior material by attaching the spacer face material to the front side tension material in advance.
  • the chair includes a chair load support member as a backrest in which the collar member is disposed along the vertical direction and the opening is disposed at the lower end. According to this chair, the degree of freedom in design is greatly increased, and the frame member can be formed at a low cost without complicating the shape of the collar.
  • the present invention when the operating member is in the operating posture, a gap generated between the operating member and the adjacent member is closed by the shielding portion, and the user's finger is sandwiched between the operating member and the adjacent member. This can prevent the user from feeling uncomfortable.
  • an exterior material and an interior material can be supported with a frame member, without complicating the shape of a frame member, and the freedom degree in a design surface is made high. Can do. Furthermore, according to the chair of the present invention, the degree of freedom in design is greatly increased, and the frame member can be formed at a low cost without complicating the shape of the collar.
  • FIG. 14B is a cross-sectional view taken along line AA in FIG. 14A.
  • FIG. 14B is a cross-sectional view taken along line BB in FIG. 14A.
  • FIG. 14D is a cross-sectional view taken along the line DD in FIG. 14B. It is principal part sectional drawing of the backrest used as other embodiment of the load supporting member for chairs concerning this invention.
  • the direction in which the front of the person sitting on the chair 1 in the normal posture faces is referred to as “front” or “front”, and the opposite direction is referred to as “rear” or “back”.
  • front the direction in which the front of the person sitting on the chair 1 in the normal posture faces
  • rear the opposite direction
  • the upper direction of a person seated in a chair in a regular posture is called “up”, and the opposite direction is called “lower”.
  • the left direction of a person seated in a normal posture is called “left”, and the opposite direction is called “right”. That is, the vertical direction is called the up-down direction, and the horizontal direction is called the left-right direction.
  • FIG. 1 is a perspective view of a chair according to an embodiment of the present invention as seen from the front side
  • FIG. 2 is a perspective view of the same as seen from the back side.
  • reference numeral 1 denotes a chair.
  • the chair 1 includes a leg 2 placed on the floor, a support base 3 installed at the upper end of the leg 2, a seat (seat body) 4 on which a seated person sits, and an upper surface of the support base 3.
  • a seat receiving member 15 that is attached and supports the seat 4 and a backrest 5 that supports the back of the seated person seated on the seat 4 that extends from the support base 3 to the rear upper side are provided.
  • the leg 2 includes a multi-leg 2a with casters 2a1 and a pedestal 2b standing from the center of the multi-leg 2a, and a support base 3 is attached to the upper end of the pedestal 2b.
  • This pedestal 2b has a built-in gas spring so that the rod 2b1 can be raised and lowered.
  • Such a leg 2 enables the chair 1 to move on the floor surface by bringing the casters 2a1 into contact with the floor.
  • the support base 3 incorporates an elevation adjustment mechanism for the pedestal 2b and a tilt adjustment mechanism for the backrest 5.
  • the support base 3 is fixed to the upper end of the rod 2b1 of the pedestal 2b, supports the seat 4 from below, and supports the backrest 5 so that it can be locked.
  • the seat 4 is a portion that supports a seated person who is a user of the chair 1 from below, and is supported by the support base 3 from below.
  • the backrest 5 is a part that supports the seated person from the rear, and is connected to the support base 3 so as to be tiltable.
  • the armrest 6 is a part that supports the arm of the seated person from below, and two armrests 6 are fixed to the backrest 5 so as to sandwich the seat 4 from the left-right direction.
  • the chair 1 of the present embodiment further includes an operation unit 7, and the operation unit 7 is provided on the right side of the seat 4 as shown in FIG.
  • FIG. 3 is an enlarged side view including the operation unit 7.
  • FIG. 4 is a plan view of the operation unit 7.
  • FIG. 5 is a perspective view of the operation unit 7 as seen from the right side of the chair 1.
  • FIG. 6 is a perspective view of the operation unit 7 as viewed from the left side of the chair 1.
  • FIG. 7 is a bottom view including the operation unit 7.
  • FIG. 8 is an exploded perspective view of the operation unit 7 as viewed from below.
  • FIG. 9 is an exploded perspective view of the operation unit 7 as viewed from above. 4 to 6, 8, and 9, a cover 7 d described later is omitted.
  • the operation unit 7 includes a holder 7a, an elevating operation member 7b (operation member), a locking adjustment operation member 7c (second operation member), and a cover 7d (see FIG. 4). ing.
  • the holder 7a is fixed to the side of the seat 4 with a bolt (not shown) or the like, and supports the lifting operation member 7b and the locking adjustment operation member 7c from below so as to be movable.
  • the holder 7a includes a base portion 7a1 and a bearing portion 7a2 that protrudes upward from the base portion 7a1 and rotatably supports a pivot 7b1 (described later) of the elevating operation member 7b.
  • the base portion 7a1 is provided with a receiving groove 7a3 that supports a later-described trunk portion 7c1 of the locking adjustment operation member 7c so as to be rotatable around a vertical axis. Further, a corrugated portion 7a4 for guiding a tip portion 7c32 of a knock mechanism 7c3 (described later) of the locking adjustment operating member 7c is formed on the inner wall surface of the accommodation groove 7a3.
  • the base portion 7a1 is provided with a flange 7a5 (adjacent member) that extends toward the right side of the chair 1 from the location where the accommodation groove 7a3 is formed.
  • the flange 7a5 is provided below a lever 7c2 (to be described later) of the rocking adjustment operation member 7c, and is a plate-like portion whose front and back surfaces are directed up and down.
  • a display showing the strength of locking is drawn.
  • the flange 7a5 is provided adjacent to a later-described operation plate 7b2 of the elevating operation member 7b, corresponds to an adjacent member of the present invention, and is disposed so as to have the same height as the operation plate 7b2 in a normal posture. .
  • the elevating operation member 7b is connected to the pedestal 2b by a drive wire or the like (not shown), and is an operation member for adjusting the expansion / contraction amount of the rod 2b1 (that is, the height of the seat 4).
  • the lifting operation member 7b is positioned by being supported from below by a holder 7a and being pressed by a cover 7d provided above.
  • FIG. 10 is a side view of the lifting operation member 7b as viewed from the right side of the chair 1.
  • the lifting operation member 7 b includes a pivot 7 b 1, an operation plate 7 b 2, a connecting portion 7 b 3, a projecting portion 7 b 4, and a shielding piece 7 b 5 (shielding portion). Yes.
  • the pivot shaft 7b1 is a shaft portion that extends horizontally in the front-rear direction of the chair 1, and is rotatably supported by the bearing portion 7a2 of the holder 7a from below (see, for example, FIGS. 4 to 6).
  • the operation plate 7b2 is connected to the pivot 7b1 via a connecting portion 7b3, and has a plate shape with a tip 7b6 protruding toward the right side of the chair 1.
  • the operation plate 7b2 is arranged with the front and back surfaces facing up and down, and is rotatable about the pivot 7b1 so that the tip 7b6 side moves up and down.
  • the operation plate 7b2 is a part that is operated when the seated person lifts and lowers the seat 4, and a depression 7b7 is provided on the lower surface side so that the fingertip of the seated person can be easily applied.
  • the connecting portion 7b3 is a portion that connects the pivot 7b1 and the operation plate 7b2 as described above, and is provided such that the lower surface is continuous with the lower surface of the operation plate 7b2.
  • the protruding portion 7b4 is provided on the lower surface of the connecting portion 7b3, and protrudes downward from the lower surface of the connecting portion 7b3.
  • Such a protruding portion 7b4 is configured to give a sense of discomfort to the seated person when the fingertip of the seated person is placed on the lower surface of the connecting portion 7b3 when operating the lifting operation member 7b. The fingertip of the person is guided to the operation plate 7b2.
  • FIG. 11 is a front view of the shielding piece 7b5 as viewed from the front of the chair 1.
  • the shielding piece 7b5 is a plate-like portion that protrudes downward from the edge of the operation plate 7b2 on the flange 7a5 side and faces the front and back in the front-rear direction of the chair 1 (the arrangement direction of the elevating operation member 7b and the flange 7a5).
  • the shielding piece 7b5 is viewed from the lower surface of the operation plate 7b2 as it goes from the end (front end 7b51) on the front end 7b6 side of the operation plate 7b2 toward the back as shown in FIG.
  • the shielding piece 7b5 includes a curved side 7b53 located on the front end 7b51 side with respect to the maximum projecting portion 7b52, and an inclined side 7b54 located on the back side of the operation plate 7b2 with respect to the maximum projecting portion 7b52. And have.
  • the curved side 7b53 has an arc length and a length so that a part of the curved side 7b53 always overlaps the tip of the flange 7a5 when viewed from the front of the chair 1 when the tip 7b6 rotates about the pivot 7b1 of the operation plate 7b2. Curvature is set. Thus, even when the operation plate 7b2 is rotated, it is possible to prevent the tip of the flange 7a5 from always protruding from the shielding piece 7b5 when viewed from the front of the chair 1.
  • the inclined side 7b54 is inclined so as to go downward as it goes from the back side of the operation plate 7b2 toward the tip 7b6 side.
  • the inclined side 7b54 guides the seated person's fingertip to the distal end side of the operation plate 7b2 when the fingertip of the seated person is engaged with the shielding piece 7b5 when the operation plate 7b2 is operated.
  • the lifting / lowering operation member 7b having such a shielding piece 7b5 is in a steady posture in which the operation plate 7b2 is at the same height as the flange 7a5 (the state shown in FIG.
  • the state in which the tip 7b6 side of the plate 7b2 is raised is the operating posture for raising and lowering the seat 4.
  • the seat 4 can be lifted and lowered by the seated person changing the lifting / lowering operation member 7b from the normal posture to the operating posture.
  • FIG. 12A and 12B are schematic diagrams for explaining the operation of the lifting operation member 7b.
  • FIG. 12A shows a state where the operation plate 7b2 is in a steady posture
  • FIG. 12B shows a state where the operation plate 7b2 is in an operation posture.
  • the shielding piece 7b5 closes a gap generated by the operation plate 7b2 and the flange 7a5 when the elevating operation member 7b is in the operation posture.
  • the gap formed between the operation plate 7b2 and the flange 7a5 is prevented from being exposed to the seated person, and the fingertip of the seated person can be prevented from entering the gap from the operation plate 7b2 side.
  • the locking adjustment operation member 7 c includes a cylindrical body portion 7 c 1, a lever 7 c 2 that protrudes from the circumferential surface of the body portion 7 c 1, and a knock mechanism 7 c 3 provided on the body portion 7 c 1. ing.
  • the trunk portion 7c1 is housed in a housing groove 7a3 provided in the base portion 7a1 of the holder 7a so as to be rotatable about the vertical axis.
  • the body portion 7c1 is positioned by being supported from below by a holder 7a and being pressed by a cover 7d provided above.
  • the lever 7c2 protrudes toward the flange 7a5.
  • the trunk portion 7c1 is rotated.
  • the trunk portion 7c1 is connected to the support base 3 by a drive wire (not shown) or the like, and adjusts the strength of locking according to the rotation position.
  • the knock mechanism 7c3 includes a spring 7c31 embedded in the body portion 7c1 so that the tip protrudes laterally, and a tip portion 7c32 provided at the tip of the spring 7c31.
  • the knock mechanism 7c3 presses the tip 7c32 against the corrugated portion 7a4 of the holder 7a by the biasing force of the spring 7c31, and the knocking sound generated when the tip 7c32 gets over the corrugated tip of the corrugated portion 7a4.
  • the seated person is notified of the rotational position of the locking adjustment operating member 7c.
  • the seat 4 can be moved up and down by rotating to lift the operation plate 7b2 of the elevating operation member 7b. Further, the strength of the locking is adjusted by rotating the body portion 7c1 of the locking adjustment operating member 7c by the lever 7c2.
  • the chair 1 includes the lifting operation member 7b that is changed from the normal posture to the operation posture by the operation of the seated person, and the flange 7a5 that is disposed adjacent to the lifting operation member 7b. . Further, the elevating operation member 7b is provided with a shielding piece 7b5 that closes a gap generated by the operation plate 7b2 and the flange 7a5 of the elevating operation member 7b when the elevating operation member 7b is in the operating posture.
  • the raising / lowering operation member 7b is provided at a position where it is difficult to see from the seated person, and even if the raising / lowering operation member 7b is operated without being seen, the seated person's finger can It can prevent being pinched
  • the raising / lowering operation member 7b is made into the shape of the axis 7b1 extended in a horizontal direction, and the plate shape which turns a front and back up and down, and the front-end
  • An operation plate 7b2 in an operation posture is provided.
  • a flange 7a5 is provided adjacent to the operation plate 7b2 and arranged at the same height as the operation plate 7b2 in the raising / lowering operation member 7b in a normal posture and with the front and back surfaces facing up and down. ing.
  • the operation plate 7b2 and the flange 7a5 provided in the lifting operation member 7b are arranged side by side at the same height when the lifting operation member 7b is in a steady posture.
  • the sense of unity between the member 7b and the flange 7a5 is increased, providing a beautiful appearance.
  • the posture of the elevating operation member 7b is changed by moving the tip 7b6 of the operation plate 7b2 up and down, a gap is easily generated between the operation plate 7b2 and the flange 7a5.
  • the chair 1 of the present embodiment since the chair 1 of the present embodiment includes the shielding piece 7b5, the seated person's finger is sandwiched between the elevating operation member 7b and the flange 7a5 even in such an integrated structure. It is possible to prevent the seated person from feeling uncomfortable.
  • the shielding piece 7b5 protrudes downward from the edge of the operation plate 7b2 on the flange 7a5 side, and the front and back surfaces are directed in the arrangement direction of the elevating operation member 7b and the flange 7a5. Is provided. Therefore, the operation plate 7b2 and the shielding piece 7b5 are integrated, and the shielding piece 7b5 can be provided without increasing the number of parts. Furthermore, when the operation plate 7b2 is visually recognized from above, the shielding piece 7b5 is less noticeable in appearance, and the aesthetic appearance is not impaired by the shielding piece 7b5.
  • the shielding piece 7b5 has the inclined side 7b54 which goes downward as it goes to the front-end
  • the operation plate 7b2 is arranged at a position where it is difficult for the seated person to see, like the chair 1 of the present embodiment, there is a high possibility that the fingertip of the seated person will be applied to the base of the operation plate 7b2. Since the base of the operation plate 7b2 is close to the pivot 7b1, it is necessary to operate the operation plate 7b2 with a very strong force when changing the posture of the operation plate 7b2 with the fingertip on the base of the operation plate 7b2.
  • the seated person may feel that the operability is bad.
  • the chair 1 of the present embodiment when a large force is applied to the back side (that is, the root side) of the operation plate 7b2, the seated person's fingertip moves along the inclined side 7b54 of the operation plate 7b2. It becomes easy to move to the tip 7b6 side, and the seated person's fingertip can be guided to the tip 7b6 side of the operation plate 7b2 which is easy to operate without being conscious of the seated person. Therefore, according to the chair 1 of this embodiment, the raising / lowering operation member 7b can be operated with weak force, and it is excellent in operativity.
  • the raising / lowering operation member 7b is provided with the connection part 7b3 which connects the operation plate 7b2 and the pivot 7b1, and the protrusion part 7b4 provided in the lower surface of the connection part 7b3.
  • the connecting portion 7b3 since the connecting portion 7b3 is provided, the operation plate 7b2 can be provided further away from the pivot 7b1, and the operation plate 7b2 can be operated with a weaker force. Is possible.
  • the protrusion 7b4 is provided on the lower surface of the connecting portion 7b3, even if the operation plate 7b2 is disposed at a position where it is difficult for the seated person to see, the seat 7 Can be prevented from being applied to the lower surface of the connecting portion 7b3 close to the pivot 7b1. Therefore, the fingertip of the seated person can be guided to the tip 7b6 side of the operation plate 7b2 that is easier to operate.
  • the chair 1 of the present embodiment includes a lever 7c2 that moves along the upper surface of the flange 7a5, and a locking adjustment operation member 7c that can be turned by the user moving the lever 7c2.
  • the chair 1 of this embodiment is excellent in operability.
  • the present invention is not limited to this.
  • this depth adjustment operation member is set as a member adjacent to the elevation operation member 7b, and the gap between the elevation operation member 7b and the depth adjustment operation member is closed. You may provide the shielding piece for.
  • the present invention is not limited to this, and an upward shielding piece may be provided on the flange 7a5.
  • the present invention is not limited to this.
  • the backrest 5 is an embodiment of the chair load support member according to the present invention. As shown in FIG. 13, which is an exploded perspective view of the backrest 5, the backrest 5 is separated in the width direction (left-right direction) of the chair 1.
  • a frame member 20 including a pair of collars 19, 19 arranged substantially in parallel, a face material 21 (interior material) laid between the pair of collars 19, 19, and a pair of collars 19, 19 are covered.
  • the armrests 6 respectively attached to both sides of the frame member 20 in the width direction.
  • the frame member 20 includes a pair of saddle members 19 and 19, and a lower frame portion 24 provided integrally at the lower end portion (the other end portion) thereof.
  • the connecting frame 25 is attached to the upper end portions (one end portions) of the pair of ribs 19, 19.
  • the armrests 6 are respectively attached to both sides in the width direction of the frame member 20, that is, to the connection portions between the pair of saddle members 19 and 19 and the lower frame portion 24.
  • the chair load support member (backrest 5) may be configured such that the armrest 6 is not attached to the frame member 20.
  • the face material 21 is formed in a substantially rectangular shape as shown in FIG. 13, and includes a face material body 21a made of a mesh material or an elastomer, and side support frames 21b provided on both sides in the width direction of the face material body 21a. 21b (fitting convex part) and the lower support frame 21c provided in the lower end of the face material main body 21a.
  • the side support frame 21b and the lower support frame 21c are attached toward the back (backward direction) of the face material 21 by sewing or the like.
  • the face material 21 is supported by the side support frames 21b and 21b being attached to the side support portion 26 (support portion) of the saddle member 19 shown in FIG. 14A, and the lower support frame 21c is the lower support portion of the lower frame portion 24. By being attached to and supported by 27, the frame member 20 is fixed.
  • the side support portions 26 are respectively provided on the inner surfaces of the pair of saddle members 19, 19 facing each other, and as shown in FIG. 15 which is a cross-sectional view taken along line AA in FIG. 14A, 19 and a thin plate-like support member 28 disposed along the saddle member 19 with a gap on the inner surface side of the saddle member 19.
  • the gap formed between the saddle member 19 and the support member 28 serves as a fitting recess 29 for attaching the side support frame 21b of the face member 21.
  • an attachment plate 30 for attaching the support material 28 to the saddle material 19 is provided between the saddle material 19 and the support material 28 on the rear side (rear surface). Side).
  • Each mounting plate 30 is provided with a plurality of mounting ports 30a (six in FIG. 14A) in the vertical direction at substantially equal intervals.
  • the fitting recess 29 is open to the front side (front side) of the chair 1, that is, the side receiving the load of the seated person (load receiving surface side).
  • a side support frame 21b of the material 21 is fitted.
  • the side portion support frame 21b has a plurality of claw portions 31 (six in FIG. 13) at the rear end thereof. Each of these claw portions 31 enters the attachment opening 30a of the attachment plate 30 and is engaged with the retaining protrusion 30b of the saddle member 19 shown in FIG.
  • the claw portion 31 protrudes from the rear end of the side support frame 21b to the rear side, and further bends outward in the width direction of the chair 1, and is then returned to the front side. Further, the folded back portion (folded portion 31 a) is locked to the retaining projection 30 b formed at the innermost portion on the back side of the saddle member 19, so that the side support frame 21 b is fitted in the fitting recess 29. It is controlled to exit from. That is, when the folded portion 31a is inserted into the fitting recess 29, the folded portion 31a is elastically deformed in a direction orthogonal to the depth direction when it gets over the retaining projection 30b.
  • the folded portion 31a is elastically restored and is locked to the retaining projection 30b.
  • the fitting to the fitting recess 29 can be completed only by pushing the folded portion 31 a into the fitting recess 29.
  • the retaining member according to the present invention is provided. That is, a retaining portion that restricts the side support frame 21b from coming out of the fitting recess 29 by being locked to each other is formed.
  • the side support frame 21 b is guided to the fitting recess 29 on the outer side in the width direction of the chair 1 at the outer peripheral portion of the opening of the fitting recess 29 on the side support portion 26 (support portion) of the saddle member 19.
  • a transition surface 32 is formed for this purpose.
  • the transition surface 32 is formed at a portion from the front end of the saddle member 19 (the front side of the chair 1) to the opening end of the fitting recess 29.
  • it is formed to be inclined so as to approach the opening end of the fitting recess 29.
  • the transition surface 32 is provided on the inner surface side of the saddle member 19 that forms the fitting recess 29, and is on the front side of the saddle member 19 (front side of the chair 1) and on the inner side surface of the saddle member 19. It is formed in an arc shape in a cross sectional view that bulges toward the side.
  • the side support frame 21b of the face member 21 when the side support frame 21b of the face member 21 is fitted into the fitting recess 29, for example, the claw 31 side of the side support frame 21b is placed outside the fitting recess 29. It strikes against the transition surface 32. Thereafter, the side support frame 21b can be easily fitted into the fitting recess 29 by sliding the claw portion 31 side of the side support frame 21b along the inclination of the transition surface 32 and guiding it to the inclination (transition surface 32). Can be fitted. Therefore, after the side support frame 21b is fitted into the fitting recess 29, the claw portion 31 is inserted into the attachment port 30a, and the folded portion 31a is locked to the retaining projection 30b, thereby the side support frame 21b. Can be fixed to the side support portion 26.
  • the support member 28 is a free end (free end) formed so that the opening side (front side of the chair 1) of the fitting recess 29 is swingable. Accordingly, the side support frame 21b can be easily fitted into the fitting recess 29. That is, the free end (support material 28) is pushed and spread using a hand opposite to the hand holding the face material 21, and the side support frame 21b can be fitted into the fitting recess 29 in this state.
  • tip part (end part of the front side of the chair 1) in the free end of the support material 28 is the end surface (end part) of the front side (front side of the chair 1) of the site
  • the position of the face material 21 is retracted (offset) to the back side of the chair 1 from the front side (load receiving surface side) end of the saddle member 19. Therefore, since the face material 21 comes into contact with the front side of the tension material 22 described later, the deformation of the tension material 22 is prevented. Further, by attaching the face material 21 so as to fill the step between the front end portion of the free end and the end portion on the front side of the saddle member 19, the face material 21 and the saddle member 19 are supported mutually. Can be continued without any step in the above state.
  • a claw portion 33 is also formed in the lower support frame 21c, and the claw portion 33 is fitted into the mounting opening 34 in the lower support portion 27 of the lower frame portion 24, thereby lowering the lower support frame.
  • 21 c is fixed to the lower frame portion 24. That is, the retaining structure having the same configuration as the folded portion 31a and retaining projection 30b of the claw portion 31 between the claw portion 33 of the lower support frame 21c and the mounting opening 34 of the lower support portion 27 as necessary.
  • the lower support frame 21c is fixed to the lower frame portion 24.
  • the side members 21 b and 21 b and the lower support frame 21 c are fixed to the frame member 20, whereby the face material 21 is also fixed to the frame member 20.
  • the face member 21 fixed to the frame member 20 is repelled by receiving a load (weight) applied to the face member main body 21a by the back of the seated person, that is, a load in a perpendicular direction (a direction perpendicular to the face).
  • a load weight
  • It is an elastic body (elastic resistance body).
  • the face material main body 21a is made of a mesh material or an elastomer, is formed so as to be elastically deformable, and is configured to exhibit a repulsive force when receiving a load in a direction perpendicular to the face.
  • the side support frame 21b and the lower support frame 21c are made of an elastically deformable resin.
  • the frame member 20 is formed with a recess 35 that opens to the outside in the width direction at each lower end edge side (the other end edge side) on both sides in the width direction, that is, at a portion intersecting the lower frame portion 24.
  • FIG. 16 which is a cross-sectional view taken along the line BB in FIG. 14A
  • the recess 35 is formed up to the inside of the saddle member 19, and in this embodiment, the opening of the recess 35 is closed.
  • the armrest 6 (occlusion member) is attached. That is, the armrest 6 is detachably fixed to the nut 36 embedded in the recess 35 by the bolt 37.
  • the connection board 42 which connects the side part opening of the tension material 22 mentioned later is provided.
  • the armrest 6 is formed with a through hole 23a for attaching a bolt 37 therein, and a cover plate 23b for closing the through hole 23a is attached to the opening on the outside of the through hole 23a.
  • the opening on the outside of the through hole 23a is formed in the same opening shape as the recess 35 to which the armrest 6 is attached. In such a configuration, when the armrest 6 is not attached to the recess 35, the opening can be closed by attaching the cover plate 23b to the recess 35.
  • the upholstery material 22 is disposed on the front side (load receiving surface side) of the chair 1 and on the front side of the chair 1 and on the back side of the chair 1 (opposite to the load receiving surface).
  • the substantially rectangular backside stretch material 39 to be disposed is formed in a bag shape.
  • it is formed of acrylic, wool (including these mixed materials), polyester, or the like, and is covered with a pair of ribs 19 and 19 as shown in FIGS.
  • the upholstery material 22 has a front side upholstery material 38 and a back side upholstery material 39 that are sewn at both the upper edge (one end edge) in the length direction of the collar member 19 and the side edge in the width direction.
  • an opening 40 continuous in the width direction is formed on the lower end edge side (the other end edge side) in the length direction.
  • the tension member 22 has an end portion 41a on the lower end edge side of the joining portion 41 at both side end edges of the front side tension member 38 and the back side tension member 39, and the lower end edge of the side end edge. It is located near the upper end edge of the side end edge.
  • the opening 40 is formed to have a side opening 40 a that opens to the lower end edge side of both side edges of the tension member 22.
  • the side opening 40a is provided with a connecting plate 42 for connecting the lower end edge side of the front side tension member 38 forming the side opening 40a and the lower end edge side of the back side tension member 39.
  • the connecting plate 42 is a thin plate made of a resin or the like that is elastically deformed and bent in an L shape at the center in the length direction so that the upper end edge side of the tension member 22 is convex and the lower end edge side is concave. It is.
  • One side of the connecting plate 42 sandwiching the bent portion 42 a shown in FIG. 17 is connected to the lower end edge side of the front side tension member 38, and the other side is connected to the lower end edge side of the back side tension member 39.
  • the connecting plate 42 is formed with a bent portion 42a at the center in the length direction, so that the length of one side sandwiching the bent portion 42a is substantially the same as the other length. Accordingly, the length of one side of the connecting plate 42 is substantially the same as the length of the portion forming the side opening 40 a of the front side tension member 38, and the length of the other side is the side of the back side tension material 39.
  • the length of the portion forming the part opening 40a is substantially the same. That is, the length of one side of the connecting plate 42 is formed to be substantially the same as the length from the end portion 41 a on the lower end edge side of the joining portion 41 to the lower end edge of the front side tension member 38. Further, the length of the other side of the connecting plate 42 is formed to be substantially the same as the length of the back side tension member 39 from the end 41 a on the lower end edge side of the joining portion 41 to the lower end edge.
  • the front side tension member 38 or the back side tension member 39 and the connection plate 42 are connected by, for example, sewing.
  • the connection of the connecting plate 42 to the front side tension member 38 and the back side tension member 39 is performed by the following procedure, for example. First, one of the front-side upholstery material 38 and the back-side upholstery material 39 is turned over so that the back surface side is exposed. Subsequently, one side of the connecting plate 42 is placed on the upholstery material with the back side facing up, and the connecting plate 42 is in a state where the upholstery material is down and the connecting plate 42 is up, that is, the connecting plate 42 is visible. Is sutured to the upholstery.
  • the end of the other side of the connecting plate 42 (the side to be sewn to the other tension member) is in a floating state.
  • the upholstery material is reversed, and the other side of the connecting plate 42 is stitched to the back side of the other upholstery material in the same manner as in the case of the one upholstery material.
  • the portions forming the side openings 40a of the front side tension member 38 and the back side tension member 39 sewn to the connecting plate 42 are folded together with the connecting plate 42 from the outside to the inside as shown in FIG. Put in. Thereby, the connecting plate 42 can be disposed in contact with the inner surface of the recess 35.
  • connection plate 42 by restoring the connection plate 42 bent by elastic deformation, the connection plate 42 is expanded and both sides thereof are brought into contact with the inner surface of the recess 35.
  • the connecting plate 42 may be formed into a bent shape without being elastically deformed. In that case, when the connecting plate 42 is placed in the recess 35, the connecting plate 42 may be disposed in a close state without bringing the connecting plate 42 into contact with the inner surface of the recess 35.
  • a front back core material 43 is attached to the opening 40 of the upholstery material 22 on the rear surface of the lower end portion of the front side upholstery material 38, and A core material 44 is attached.
  • the front back core material 43 and the back back core material 44 are formed in a thin plate shape with resin or the like, and are attached to the front side tension material 38 or the back side tension material 39 by sewing or the like.
  • a plurality of engaging portions are formed on the inner surface (rear surface) of the front back core material 43. By engaging these engaging portions with engaging portions (not shown) formed on the lower support portion 27 of the lower frame 24, the front back core 43 is attached to and supported by the lower support portion 27. ing.
  • the rear back core material 44 is formed with a plurality of engaging portions (not shown) on the inner surface (front surface) thereof. By engaging these engaging portions with engaging portions (not shown) formed on the lower support portion 27 of the lower frame 24, the rear back core material 44 is also attached to the lower support portion 27 and supported. Has been. By attaching the front back core 43 and the back back core 44 to the lower support portion 27 in this manner, the opening 40 of the bag-like stretch 22 is closed by the lower frame portion 24, and the opening 40 is not exposed.
  • the front tension member 38 and the back tension material 39 are joined to the tension member 22 at the inner edge (upper edge) on the upper edge side (one edge side) slightly inside the outer edge in the width direction of the chair 1.
  • a surplus length portion 45 is formed.
  • FIG. 18 which is a cross-sectional view taken along the line CC of FIG. 14B, an exposure port 46 for exposing the collar member 19 is formed on the inner side in the width direction of the extra length portion 45.
  • the brazing material 19 has a fitting hole 19a having an opening communicating with the exposure port 46 at an end on the exposure port 46 side, that is, an upper end portion, and a protruding portion in the length direction of the brazing material 19 and contacts the extra length portion 45.
  • a projecting edge portion 19b is formed.
  • the projecting edge portion 19b is formed in an annular shape continuously on the outer peripheral portion surrounding the fitting hole 19a over the entire circumference thereof. Therefore, the protruding edge portion 19 b is in contact with not only the extra length portion 45 of the tension member 22 but also the entire outer peripheral portion of the exposure port 46.
  • the connecting frame 25 is attached to the fitting hole 19a of the brazing material 19 exposed to the exposure port 46 and communicating with the exposure port 46 in this way.
  • the connecting frame 25 is fitted into the fitting hole 19a through the exposure port 46 and closes the exposure port 46, and the connection unit that connects the pair of closing portions 47, 47 as shown in FIG. 48.
  • a pair of closure parts 47 and 47 are attached to the corresponding brace material 19, respectively, thereby connecting the pair of saddle members 19 and 19.
  • the closing portion 47 is fitted in the fitting hole 19a through the exposure port 46, and is located on the base side (upper end side) of the fitting protrusion 47a. And a cover portion 47b extending outward.
  • the covering portion 47b is formed on the projecting edge portion 19b of the collar member 19 through the outer peripheral portion of the exposure port 46 including the extra length portion 45 of the tension member 22 in a state where the fitting protrusion 47a is fitted in the fitting hole 19a. I'm hitting.
  • the fitting protrusion 47a has a cylindrical shape with a hole therein, and a nut is accommodated in the hole as will be described later.
  • Such a blocking portion 47 extends from the rear side (back side) of the saddle member 19 to the saddle member 19 (fitting hole 19a) as shown in FIG. 19 which is a cross-sectional view taken along the line DD in FIG. 14B. It is fixed by a screw 49 inserted. That is, the screw 49 is inserted into the fitting hole 19a through a screw hole (not shown) formed on the rear side (back side) of the collar member 19. The screw 49 is further inserted into the fitting projection 47a fitted in the fitting hole 19a, and is screwed into the nut 50 accommodated in the hole. Thereby, the fitting protrusion 47a is screwed into the fitting hole 19a of the collar member 19 and fixed.
  • the attachment of the connecting frame 25 and the tension member 22 to the pair of ribs 19 and 19 including such a screw stopper is performed as follows. First, as shown in FIG. 13, a connecting plate 42 is attached to each side opening 40 a of the bag-like tension member 22, a front-side tension core member 43 is attached to the front-side tension member 38, and a back-side tension member 39. The rear back core material 44 is attached to each. However, the attachment of the front back core 43 and the back back core 44 may be performed later.
  • the fitting protrusions 47a of the closing portion 47 of the connecting frame 25 are inserted into the exposed openings 46, 46 at the upper end edge of the tension member 22 from above, respectively, and the fitting protrusion 47a is stretched from the exposed openings 46, 46. Project into the material 22.
  • the tension member 22 is turned upside down with the fitting protrusion 47a protruding from the exposure ports 46 and 46 as described above. That is, the tension member 22 turned upside down with the fitting protrusion 47a on the lower side is pulled upward, and the connecting portion 48 of the connection frame 25 is accommodated in the inverted tension member 22 and the fitting protrusion 47a is moved to the lower end side. Expose in a protruding state.
  • the pair of fitting protrusions 47a protruding to the lower end side are fitted into the corresponding fitting holes 19a of the collar member 19, and then the fitting protrusion 47a is screwed to the collar member 19 as shown in FIG. To do.
  • the face member 21 is attached to the frame member 20 before the fitting protrusion 47 a is fitted into the fitting hole 19 a of the collar member 19.
  • the fitting protrusion 47a passes through the exposure port 46 of the tension member 22 and fits into the fitting hole 19a of the saddle member as shown in FIG.
  • the front back core 43 and the back back core 44 attached to the opening 40 of the upholstery material 22 are also attached to the lower support portion 27.
  • the upholstery material 22 is fixed to the frame member 20.
  • the tension member 22 fixed in this manner has a repulsive force against a load (weight) applied by the seated person's back, that is, a load in a direction perpendicular to the surface, from the same repulsive force of the face member 21. It is relatively small. That is, in this embodiment, the face material 21 attached to the frame member 20 as a strength member is a repelling body (elastic resistor) that repels a load (weight) applied by the back of the seated person. .
  • the backrest 5 (chair load support member) having such a configuration is configured such that the attachment portion 51 of the lower frame portion 24 shown in FIG. 13 is attached to the support base 3 shown in FIGS. Is assembled. Further, since the backrest 5 is attached to the support base 3 in this way, the front back core 43 and the back back core 44 attached to the opening 40 of the upholstery material 22 are not exposed. It is stored in the material 22.
  • the chair load support member (backrest 5) according to the present embodiment, a repulsive force against the load in the perpendicular direction between the saddle members 19 and 19 separately from the tension member 22 covered on the frame member 20.
  • the face material 21 having the structure is constructed, for example, by setting the strength of the face material 21 to a size that can support the load of the seated person, it is possible to appropriately select the material of the upholstery material 22 and the like. Become. Therefore, the degree of freedom in design can be greatly increased.
  • the tension member 22 is supported by the frame member 20 so as to wrap around the saddle member 19 with its own shape and tension, a dedicated support portion is not required, and the shape of the saddle member 19 is complicated.
  • the frame member 20 can be formed inexpensively.
  • the side support portions 26 formed on the inner surface of the saddle member 19 are concealed by the tension member 22, it is possible to prevent the side support portions 26 from deteriorating the appearance.
  • the side part support part 26 is the fitting recessed part 29 formed in the inner surface of each saddle member 19, when making the shape of the saddle member 19 which has such a fitting recessed part 29, two gold
  • the end portion on the load receiving surface side of the support member 28 is positioned closer to the side opposite to the load receiving surface side than the end portion on the load receiving surface side of the portion where the fitting recess 29 in the brim material 19 is formed. Therefore, the position of the face material 21 is retracted (offset) to the back side of the chair 1 with respect to the end of the saddle material 19 on the load receiving surface side. Therefore, since the deformation of the upholstery material 22 is prevented by the face material 21 coming into contact with the front side upholstery material 38 of the upholstery material 22 from the back, the appearance can be improved.
  • the tension material 22 since the bag-like tension material 22 has a smaller repulsive force than the face material 21, the tension material 22 is relatively softer (less elastic resistance) than the face material 21, and thus depends on the weight of the seated person, etc. Even if a load is applied to the upholstery material 22, it becomes difficult for frictional resistance to occur between the upholstery material 22 and the brace material 19. Further, since the upholstery material 22 is soft, the upholstery material 22 comes into contact with the upholstery material 19 without being in close contact. Or suppressed. In addition, a force that supports the body of the seated person is ensured by the relatively hard face material 21, but since the face material 21 is constructed between the opposing surfaces of the collar member 19, There is no interference.
  • the chair 1 according to the present embodiment includes the backrest 5 having a high degree of freedom in design, so that the degree of freedom in design of the chair 1 itself is greatly increased. Moreover, since the frame member 20 can be molded at low cost without complicating the shape of the collar member 19, the cost of the chair 1 itself can be reduced.
  • 20 is a cross-sectional view of the main part of the backrest 60 serving as a load support member for a chair according to the present invention, that is, a cross-sectional view corresponding to FIG. 15 in the above embodiment (a cross-sectional view taken along the line AA in FIG. 14A). It is.
  • the backrest 60 of the present embodiment is different from the backrest 5 of the above embodiment in that a spacer face material 61 is disposed between the front-side tension member 38 and the face material (interior material) 21 as shown in FIG. It is a point.
  • the spacer face material 61 is formed of, for example, a nonwoven fabric or an elastomer, and the repulsive force of the spacer face material with respect to the load (weight) applied by the seated person's back, that is, the load in the perpendicular direction, is the surface of the face material 21. It is formed so as to be relatively smaller than the repulsive force of the material main body 21a.
  • the repulsive force of the spacer face member 61 may be relatively large, small, or equivalent to the repulsive force of the front side tension member 38.
  • Such a spacer face member 61 is formed in a rectangular shape having substantially the same shape and the same dimensions as the front side tension member 38 shown in FIGS. 13 and 17, and its four sides, that is, an upper end edge, both end edges, and a lower end edge. Are stitched to the front side tension member 38 and integrally attached to the front side tension member 38. That is, as shown in FIG. 20, at both side edge portions of the front side tension member 38, each side edge portion of the spacer face material 61 is folded back together with each side edge portion of the front side tension member 38 and stitched in that state. In this way, it is integrally attached to the front side tension member 38.
  • the upper end edge and the lower end edge of the spacer face material 61 are integrally attached to the upper end edge and the lower end edge of the front side tension member 38 in the same manner as the side end edges. And each side edge part and upper end edge part of the front side tension member 38 to which the spacer face material 61 is integrally attached in this way, and each side edge part of the back side tension member 39 folded and stitched similarly.
  • the upper end edge portion is further stitched and integrated, whereby the tension member 22 to which the spacer face member 61 is integrally attached is formed.
  • the tension member 22 having the spacer face material 61 formed in this way is covered with the frame member 20 in the same manner as in the above embodiment. That is, the frame member 20 is covered and attached from the upper end side of the frame member 20 through the opening 40 shown in FIG.
  • the spacer face material 61 having a smaller repulsive force than the face material 21 (face material main body 21 a) is disposed between the front side tension member 38 and the face material 21, so that the seated person can place the spacer on the front side tension material 38.
  • the backrest 60 supports the weight of the seated person by the face material 21 in a state where the deflection of the spacer face material 61 is added to the deflection of the front side tension member 38.
  • the spacer face material 61 is interposed, so that the upper edge portion of the tension member 22 is less likely to directly contact the upper edge portion of the face material 21, and the upper edge portion of the face material 21 is prevented from being used continuously for a long time. Elongation is suppressed.
  • the spacer face material 61 continuously covers from the surface side of the face material 21 to the surface side of the saddle member 19, the spacer face material 61 fills the space between the face material 21 and the saddle material 19. Almost no influence of the step between. Therefore, there is no possibility that an uncomfortable feeling will occur on the back of the seated person due to this step.
  • the spacer face member 61 is integrally attached to the back surface of the front side tension member 38 in advance, the process of assembling the backrest 60 by covering the frame member 20 with the tension member 22 can be easily performed.
  • this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the main point of this invention.
  • the repulsive force of the bag-like tension material 22 is smaller than that of the face material 21, but the repulsive force of the tension material 22 may be equal to the repulsive force of the face material 21, May be larger than the repulsive force of the face material 21.
  • the lower end portion of the front-side tension member 38 and the lower end portion of the back-side tension member 39 are attached to the lower frame portion 24 via the front-side tension core material 43 and the rear-side tension core material 44, respectively.
  • the attachment to the lower frame part 24 of the lower end part of the front side tension material 38 and the lower end part of the back side tension material 39 it is performed using appropriate members other than the front side tension core material 43 and the rear side tension core material 44. Also good.
  • the face material body 21a does not form a continuous and continuous surface as shown in FIG. 13, for example, the face material body has a shape having a slit. Also good. Specifically, a plurality of slits (for example, 2 to 5) that are long in the left-right direction may be formed at substantially equal intervals in the up-down direction, and the slits may be formed in a strip shape. Thus, the flexibility of the face material (interior material) can be increased by forming the slit. Even when the slit is formed in this way, the face material body can be formed of a resin (elastomer) such as nylon or polypropylene. Further, the side support frame 21b and the lower support frame 21c constituting the face material (interior material) may be formed integrally with the face material body by bending the end of the face material body.
  • a resin elastomer
  • the present invention when the operating member is in the operating posture, a gap generated between the operating member and the adjacent member is closed by the shielding portion, and the user's finger is sandwiched between the operating member and the adjacent member. This can prevent the user from feeling uncomfortable.
  • an exterior material and an interior material can be supported with a frame member, without complicating the shape of a frame member, and the freedom degree in a design surface is made high. Can do.
  • the degree of freedom in design is greatly increased, and the frame member can be formed at a low cost without complicating the shape of the collar.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

L'invention concerne des meubles et une chaise dotée d'une pièce de blindage (7b5) qui est disposée sur une plaque de fonctionnement (7b2) ou sur une bride (7a5) et qui protège un espace qui est généré par la plaque de fonctionnement (7b2) et la bride (7a5) lorsque la plaque de fonctionnement (7b2) est dans une position de fonctionnement. L'invention concerne également une chaise comprenant un élément de support de charge pour une chaise. L'élément de support de charge comprend un élément de structure doté d'une paire d'éléments de tige (19) et d'un élément de garniture (22) présentant la forme d'un sac et recouvrant l'élément de structure, et est installé de sorte que des sections de support (26) soient respectivement disposées sur des surfaces latérales internes se faisant face dans la paire d'éléments de tige (19) et qu'un élément intérieur (21) qui présente une force de répulsion par rapport à une charge perpendiculaire à la surface de celui-ci soit supporté par les sections de support (26) entre la paire d'éléments de tige (19).
PCT/JP2015/079953 2014-10-24 2015-10-23 Meubles, élément de support de charge pour chaise, et chaise WO2016063973A1 (fr)

Priority Applications (3)

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CN201580057035.1A CN107072398B (zh) 2014-10-24 2015-10-23 家具、椅子用负荷支撑部件以及椅子

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JP2015006732A JP6552083B2 (ja) 2014-10-24 2015-01-16 椅子用荷重支持部材および椅子
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017217403A (ja) * 2016-06-10 2017-12-14 株式会社岡村製作所 什器構成部材、及び什器
JP2017217402A (ja) * 2016-06-10 2017-12-14 株式会社岡村製作所 什器構成部材、及び什器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010050204A1 (fr) * 2008-10-29 2010-05-06 株式会社岡村製作所 Dossier de chaise

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010050204A1 (fr) * 2008-10-29 2010-05-06 株式会社岡村製作所 Dossier de chaise

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017217403A (ja) * 2016-06-10 2017-12-14 株式会社岡村製作所 什器構成部材、及び什器
JP2017217402A (ja) * 2016-06-10 2017-12-14 株式会社岡村製作所 什器構成部材、及び什器

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