WO2011067968A1 - Siège - Google Patents

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Publication number
WO2011067968A1
WO2011067968A1 PCT/JP2010/063911 JP2010063911W WO2011067968A1 WO 2011067968 A1 WO2011067968 A1 WO 2011067968A1 JP 2010063911 W JP2010063911 W JP 2010063911W WO 2011067968 A1 WO2011067968 A1 WO 2011067968A1
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WO
WIPO (PCT)
Prior art keywords
rod member
backrest
state
footrest
chair
Prior art date
Application number
PCT/JP2010/063911
Other languages
English (en)
Japanese (ja)
Inventor
文敬 石黒
哲也 石川
賢 玉木
茂樹 野田
新策 清水
幹亨 青木
Original Assignee
大東電機工業株式会社
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 JP2009275637A external-priority patent/JP2010162337A/ja
Application filed by 大東電機工業株式会社 filed Critical 大東電機工業株式会社
Publication of WO2011067968A1 publication Critical patent/WO2011067968A1/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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/0342—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0119—Support for the device
    • A61H2201/0138—Support for the device incorporated in furniture
    • A61H2201/0149—Seat or chair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/08—Trunk
    • A61H2205/081—Back
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/10—Leg
    • A61H2205/106—Leg for the lower legs

Definitions

  • the present invention relates to a chair capable of swinging a footrest portion and a backrest portion with respect to a seat portion.
  • Patent Literature 1 discloses a chair provided with a drive mechanism that swings a footrest part in addition to a drive mechanism that swings a backrest part with respect to a seat part.
  • a traveling member travels along a guide rail by a drive mechanism, and a footrest portion connected to the traveling member traveling on the guide rail via a link mechanism swings.
  • the footrest part and the backrest part are swung with a single drive mechanism for weight reduction, the footrest part and the backrest part are swung in conjunction with each other, so the adjustable posture is greatly limited.
  • a chair such as a chair type massage machine has a need to realize various reclining postures by individually swinging the footrest portion and the backrest portion. For this reason, such a swinging mechanism in which the adjustable posture is greatly limited is not preferable.
  • This invention is made
  • a chair according to the present invention includes a seat, a backrest that is swingably provided on the back of the seat, a footrest that is swingably provided on the front of the seat, and the footrest and backrest.
  • a swinging mechanism that swings the part with respect to the seat part, the swinging mechanism, wherein the backrest part swings in conjunction with the swinging of the footrest part, and
  • a switching mechanism for switching to a non-interlocking state in which the backrest portion does not swing and only the footrest portion swings is provided.
  • the backrest can be swung in conjunction with the footrest, so that only one drive device such as a drive motor is required, and the swing mechanism is simple and lightweight. It becomes possible to set it as a structure. Also, if the swing mechanism is switched from the interlocking state to the non-interlocking state using the switching mechanism, the footrest part and the backrest part can be swinged separately, and the footrest part and the backrest part can be It can be swung to the posture.
  • the swing mechanism includes a first swing mechanism that swings the footrest portion, a drive unit that drives the first swing mechanism, and a backrest portion that is driven by the first swing mechanism. It is preferable to include a second swing mechanism that moves, and a switching mechanism that temporarily restricts the driven operation of the second swing mechanism relative to the first swing mechanism.
  • the first swing mechanism preferably includes a first rod member that is connected to the footrest portion and is movably disposed in the front-rear direction, and the second swing mechanism includes the backrest portion.
  • a second rod member that is connected to the first rod member and is pushed forward by a backward swing due to the weight of the backrest portion, and abuts against the first rod member from the rear in a state in which the rearward movement with respect to the first rod member is allowed.
  • the switching mechanism has a stopper for switching the swinging mechanism from the interlocking state to the non-interlocking state by restricting the forward movement of the second rod member.
  • the switching mechanism is allowed to switch between the interlocking state and the non-interlocking state when the footrest part is in a position depending on the seat part, and when the footrest part swings forward from the sagging state. It is preferable that the switching is restricted, and the second rod member is formed in a hollow bottomed cylindrical shape that allows the first rod member to be inserted and removed from the front along the axis. It is preferable that the inner bottom portion is a contact portion of the second swing mechanism, and the stopper is configured to contact the opening edge of the second rod member.
  • the second rod member includes a plurality of contact surfaces that can contact the stoppers at different positions in the front-rear direction.
  • a configuration may be adopted in which the rocking angle of the backrest portion is switched in multiple stages by the contact.
  • the above-described configuration can be provided in a chair in which a massage mechanism is built in the backrest and the footrest.
  • the swing mechanism preferably includes a posture fixing mechanism that fixes the posture of the backrest portion in a state in which the backrest portion is in the interlocked state, and the posture of the backrest portion in the non-interlocked state is You may be set as the structure fixed with the backrest part raised.
  • a posture fixing mechanism As such a posture fixing mechanism, a lock member that protrudes toward the outside of the second rod member according to the front-rear position of the first rod member with respect to the second rod member, and a protrusion that protrudes outside the second rod member A first stopper hole that engages with a lock member to fix the backrest in a tilted state, and is formed rearward in the front-rear direction with respect to the first stopper hole and is engaged with the protruding end in the non-interlocking state.
  • a connecting member that can move back and forth with respect to the first rod member and that connects the first rod member and the footrest portion is provided on the distal end side of the first rod member, It is good to be urged
  • the stopper includes a protruding piece that can move through a movement path that faces in the vertical direction, and the protrusion moves to the lower end side of the movement path and comes into contact with the second rod member.
  • the second rod member is configured to restrict the forward movement of the second rod member, and when the protruding piece is positioned on the upper side of the movement path, the protruding piece is biased upward, and the protruding piece is the movement path. It is preferable that a switching urging mechanism for switching the urging state of urging the projecting piece downward when moving downward is provided.
  • the chair according to the present invention can swing the footrest portion and the backrest portion in various postures while having a simple and lightweight structure.
  • position of a chair in the case of an interlocking state (a) shows the state which the footrest part is rock
  • FIG. 4D is a sectional front view of the periphery of FIG.
  • the chair 1 of this invention is demonstrated based on drawing.
  • the chair 1 of the present invention is a chair type massage machine, a chair that can be reclined when washing hair in a beauty salon or barber, a chair or sofa that can be reclined when relaxing in the living room, or a passenger sitting on a vehicle such as an airplane or train It is used for a sheet to be used.
  • the chair 1 of this invention is demonstrated by giving the example which applied the chair 1 of this invention to the chair type massage machine also in these uses.
  • a chair-type massage machine 1 (chair) includes a seat portion 2, a backrest portion 3 swingably provided on the back surface of the seat portion 2, and swingable on the front surface of the seat portion 2. And a swing mechanism 5 that swings the footrest part 4 and the backrest part 3 with respect to the seat part 2.
  • the direction indicated by the symbol U in FIG. 1 is the upper direction when the chair type massage machine 1 is described, and the direction indicated by D is the lower side.
  • the direction indicated by F in FIG. 1 is referred to as the front
  • the direction indicated by B is referred to as the rear.
  • the direction indicated by R in FIG. 1 is referred to as the right direction
  • the direction indicated by L is referred to as the left direction. This coincides with the direction seen from the person sitting on the chair type massage machine 1.
  • the seat portion 2 is composed of a frame body in which square bars are combined in front and rear, left and right, and top and bottom, and a cushion is provided on the upper portion of the frame body so that a person can easily sit on the frame body.
  • Material C is provided.
  • a wheel 6 is provided on the lower side of the rear part of the frame body so as to be rotatable about an axis that faces in the left-right direction, thereby facilitating the transport of the chair type massage machine 1.
  • a footrest portion 4 is attached so as to be swingable around an axis facing in the left-right direction.
  • a backrest 3 is attached to the rear upper side of the seat 2 so as to be swingable about an axis that faces in the left-right direction. Further, a swing mechanism 5 that swings the backrest portion 3 in conjunction with the swing of the footrest portion 4 is provided on the center side in the left-right direction of the frame body along the front-rear direction. The swing mechanism 5 will be described in detail later.
  • the backrest part 3 is comprised with the frame body which combined the bar material similarly to the seat part 2, and the massage mechanism (not shown) which massages a person's shoulder, back, or waist seated inside this frame body. Is built-in.
  • the backrest part 3 is pivotally supported on the lower end side with respect to the seat part 2, and the front surface of the backrest part 3 is tilted backward so that the front face of the backrest part 3 rises substantially vertically with the lower end side as a center. It can swing between postures.
  • the footrest part 4 is comprised with the frame body which combined the bar material similarly to the seat part 2 and the backrest part 3.
  • FIG. A foot massage mechanism (not shown) is built in the distal end side frame body so that the legs of a person sitting on the chair type massage machine 1 can be massaged.
  • the footrest part 4 is pivotally supported at the upper end side with respect to the seat part 2, and the posture where the bottom surface of the footrest part 4 hangs around the upper end side until it is parallel to the floor surface and the front surface of the footrest part 4 is It can swing between the seat 2 and a posture that has risen until it is substantially horizontal.
  • the footrest part 4 is divided into two parts, a first slide member 7 on the side close to the swing center (upper end side) and a second slide member 8 on the far side (lower end side).
  • the second slide member 8 includes a frame body that extends straight downward toward the lower front end and is bent in a substantially L shape toward the upper front side at the lower end.
  • the above-described foot massage mechanism is provided along the frame body at the L-shaped portion of the second slide member 8.
  • the second slide member 8 is slidably attached to the first slide member 7, and the footrest part 4 can be moved close to and away from the seat part 2.
  • the swing mechanism 5 includes a first swing mechanism 9 that swings the footrest portion 4, a drive unit 10 that drives the first swing mechanism 9, and a first swing mechanism.
  • a second swinging mechanism 11 that is driven by a contact portion 12 with respect to the mechanism 9 and swings the backrest portion 3.
  • the first swing mechanism 9 includes a first rod member 13 that is arranged so as to be movable in the front-rear direction. The distal end of the first rod member 13 is pivotally connected to the second slide member 8 of the footrest portion 4 using a pivot pin 14, and the first rod member 13 is moved in the front-rear direction.
  • the footrest part 4 can be swung.
  • the first rod member 13 is formed in a square bar shape, and is movable in the front-rear direction while maintaining a horizontal posture by a guide wheel 15 provided on the bottom side thereof.
  • the rear end side of the first rod member 13 is inserted into a second rod member 22 of the second swing mechanism 11 described later.
  • the drive unit 10 is provided adjacent to the lower side of the first rod member 13 and swings the footrest unit 4 by moving the first rod member 13 in the front-rear direction.
  • the drive unit 10 includes a screw shaft 16 provided along the front-rear direction, a drive motor 17 that drives and rotates the screw shaft 16 in both forward and reverse directions, and a screwing member 18 that is screwed into the screw shaft 16. Yes.
  • a male screw portion 19 is formed in a spiral shape in the front-rear direction.
  • the screwing member 18 is a member attached to the midway side of the first rod member 13 in the front-rear direction.
  • the screwing member 18 extends upward and is connected to the first rod member 13 on the upper end side. It is formed in the cylinder shape which faces the front-back direction so that it can penetrate.
  • a female screw portion 20 is formed on the inner peripheral side of the cylindrical portion so as to be screwed with the male screw portion 19 of the screw shaft 16. By rotating the screw shaft 16 in either the forward or reverse direction, the screw portion 16 is screwed.
  • the joint member 18 is movable in the front-rear direction.
  • the second rocking mechanism 11 includes a second rod member 22 supported by a housing 21 provided in the seat portion 2 so as to be movable horizontally along the front-rear direction.
  • An engagement hole 24 is formed at the rear end of the second rod member 22 so as to freely engage with an engagement pin 23 provided in the frame body of the backrest 3.
  • the second rod member 22 can move in the front-rear direction.
  • the second rod member 22 has a rectangular tube shape in which the inside is hollow along the front-rear direction, and the opening is disposed toward the front, and the rear end side of the first rod member 13 is located in the inside from the front. Has been inserted.
  • a groove 25 is formed in the lower end surface of the second rod member 22 along the front-rear direction.
  • the groove portion 25 is formed in a slit shape that opens toward the front, and can guide the screwing member 18 provided on the lower end side of the first rod member 13 in the front-rear direction. Therefore, the first rod member 13 is inserted into the second rod member 22 so as to be movable in the front-rear direction.
  • an inner bottom portion 26 that contacts the rear end of the first rod member 13 inserted into the second rod member 22 and positions the insertion position.
  • the bottom portion 26 is a contact portion 12 that operates the second swing mechanism 11 in conjunction with the operation of the first swing mechanism 9 in the present embodiment.
  • a step 27 projecting downward is formed on the rear end side of the lower end surface of the second rod member 22, and the step 27 abuts on the rear end surface of the housing 21, so that the second rod member 22 Forward movement is regulated.
  • the abutting portion 12 abuts the first rod member 13 from the rear in a state in which the rearward movement is permitted, and the second rod member 22 is moved to the first rod member 13 while restricting the forward movement of the second rod member 22. It follows and guides forward. In other words, since the backrest 3 is inclined toward the upper rear side, the backrest 3 is given its own weight in the direction of swinging backward. Therefore, a force that pushes forward is applied to the second rod member 22 by backward swinging due to its own weight of the backrest portion 3, and the second rod member 22 is constantly pushed forward. It is said.
  • the second rod member 22 is constantly pressed forward, and the rear end of the first rod member 13 contacts the contact portion 12.
  • the rear end of the first rod member 13 also moves forward, and the second rod member 22 until the contact portion 12 contacts the rear end of the advanced first rod member 13. Also move forward.
  • the contact portion 12 also moves rearward, and the second rod member 22 also moves rearward as the first rod member 13 moves backward. Therefore, if such a contact portion 12 is provided, the second rod member 22 can be guided back and forth by following the first rod member 13, and in conjunction with the operation of the first swing mechanism 9, 2 The swing mechanism 11 can be operated.
  • the swing mechanism 5 of the present invention is provided with a switching mechanism 28 that temporarily restricts the driven operation of the second swing mechanism 11 relative to the first swing mechanism 9.
  • a switching mechanism 28 that temporarily restricts the driven operation of the second swing mechanism 11 relative to the first swing mechanism 9.
  • the switching mechanism 28 temporarily restricts the driven operation of the second swing mechanism 11 relative to the first swing mechanism 9.
  • the second rod member 13 allows the first rod member 13 to move forward.
  • a stopper that restricts only the forward movement of 22 is used as the switching mechanism 28.
  • the stopper 28 restricts the forward movement of the second rod member 22 when the first rod member 13 moves to substantially the middle in the front-rear direction on the movement path along the front-rear direction of the second rod member 22. In the position.
  • the stopper 28 is provided with a plate-like protruding piece 29 that can protrude from above on the second rod member 22 side, and the protruding protruding piece 29 comes into contact with the opening edge (front end) of the second rod member 22 to make the first.
  • the forward movement of the two-rod member 22 is restricted.
  • the protruding piece 29 comes into contact with the opening edge of the second rod member 22 but protrudes so as not to contact the first rod member 13, and does not hinder the forward movement of the first rod member 13. It is attached as follows.
  • the protruding piece 29 is attached to a swing shaft 30 provided in the left-right direction. When the swing shaft 30 is rotated, the projecting piece 29 is rotated around the axis of the swing shaft 30 so as to protrude or retract. It is like that.
  • the swing shaft 30 is provided with a lever 31 for rotating the swing shaft 30. When the lever 31 is swung forward, the swing shaft 30 rotates in one direction and protrudes. When the piece 29 protrudes and the lever 31 is swung back, the rocking shaft 30 is rotated in the other direction so that the protruding piece 29 is retracted.
  • the chair type massage machine 1 changes from the state shown in FIG. 4A to the state shown in FIG.
  • the footrest part 4 hangs downward with respect to the seat part 2, and the backrest part 3 falls down slightly from the vertical with respect to the seat part 2.
  • the lever 31 is swung rearward, and the protruding piece 29 of the stopper 28 retreats from the second rod member 22 side to the housing 21 side.
  • the screwing member 18 provided on the lower side of the first rod member 13 is a frame on the front end side of the seat portion 2.
  • the step 27 formed on the rear end side of the second rod member 22 is in contact with the body and the rear end surface of the housing 21, so that the forward movement of the first rod member 13 and the second rod member 22 is restricted.
  • the front end side of the first rod member 13 largely protrudes forward from the seat portion 2, and the footrest portion 4 connected to the front end side of the first rod member 13 is aligned horizontally with the seat portion 2. I'm getting up.
  • the engagement pin 23 connected to the rear end side of the second rod member 22 has moved forward from the pivot point of the backrest portion 3, and the backrest portion 3 has fallen to a position aligned horizontally with the seat portion 2. Yes. If the backrest part 3 of the chair type massage machine 1 can be swung in this way until it is horizontally aligned with the seat part 2, for example, the whole body can be stretched substantially horizontally (being on its back) to receive a massage. It is.
  • the chair type massage machine 1 changes from the state shown in FIG. 5A to the state shown in FIG. .
  • the lever 31 is swung forward, and the protruding piece 29 of the stopper 28 protrudes from the housing 21 side to the second rod member 22 side.
  • the tilting state of the footrest part 4 and the backrest part 3 is the same as in FIG. Therefore, the description of FIG.
  • the opening edge of the second rod member 22 eventually comes into contact with the protruding piece 29 of the stopper 28 and the second rod member 22 moves forward.
  • the second rod member 22 is restricted from moving forward with respect to the first rod member 13, but is allowed to move backward. Therefore, only the first rod member 13 moves forward while the forward movement of the second rod member 22 is restricted by the stopper 28. And only the 1st rod member 13 moves forward leaving the 2nd rod member 22, and the backrest part 3 does not rock
  • the screwing member 18 provided on the lower side of the first rod member 13 is a frame on the front end side of the seat portion 2.
  • the front end side of the 1st rod member 13 protrudes largely toward the front from the seat part 2, and the footrest part 4 connected with the front end side of this 1st rod member 13 rises to the position aligned with the seat part 2 horizontally.
  • the second rod member 22 since the second rod member 22 remains in contact with the protruding piece 29 of the stopper 28, the second rod member 22 remains in the state shown in FIG. 5B, and the backrest portion 3 has fallen obliquely backward. Held in a state. If the backrest part 3 of the chair-type massage machine 1 can be held in such a state that it stands up with respect to the seat part 2, for example, it is possible to perform foot massage by raising the lower body horizontally while watching only the upper body and watching TV. And convenient.
  • the swing of the backrest 3 can be performed in conjunction with the swing of the footrest 4, so that the drive motor
  • the swinging mechanism 5 having only one drive device such as 17 can swing both the footrest portion 4 and the backrest portion 3.
  • the footrest portion 4 and the backrest portion 3 can be swinged separately, and the footrest portion 4 and the backrest can be separately operated.
  • the part 3 can be swung in various postures. “Second Embodiment” Next, the chair type massage machine 1 of 2nd Embodiment is demonstrated.
  • the chair-type massage machine 1 of the second embodiment includes a plurality of abutting surfaces 32 in which the second rod member 22 can abut against the stopper 28 at different positions in the front-rear direction.
  • the second rod member 22 of the second embodiment includes a step portion 33 formed along the front-rear direction on the upper outer peripheral surface corresponding to the stopper 28. The step portion 33 is opened forward so as to allow the protruding piece 29 to enter.
  • the step portion 33 is formed so as to become deeper in a stepped manner from the rear to the front, and includes a plurality of vertical surfaces that are vertically cut in different positions in the front-rear direction.
  • the plurality of vertical surfaces are the above-described contact surfaces 32.
  • three contact surfaces 32 including the open end of the second rod member 22 are provided.
  • the stopper 28 is configured such that the lever 31 swings in multiple stages at every constant swing angle, and the protruding piece 29 has a second rod member as the swing angle of the lever 31 is increased stepwise. It protrudes so that the protrusion amount increases stepwise toward the 22 side. Therefore, in the second embodiment, when the lever 31 is swung backward by the first step, the protruding piece 29 of the stopper 28 is about 1/3 of the maximum protruding amount toward the second rod member 22 side. The protruding piece 29 comes into contact with the contact surface 32 located on the rearmost side among the three contact surfaces 32. Therefore, the moving distance of the second rod member 22 required until the contact surface 32 contacts the protruding piece 29 is shortened, and the swing angle of the backrest 3 is also decreased.
  • the protruding amount of the protruding piece 29 is further increased by about 1/3 of the maximum protruding amount, and the three protruding pieces 29 have three contact points.
  • the contact surface 32 also comes into contact with the contact surface 32 located on the midway side.
  • the protruding piece 29 comes into contact with the contact surface 32 located on the front side among the three contact surfaces 32. If it does so, the movement distance of the 2nd rod member 22 required until the contact surface 32 will contact
  • the abutment surface 32 that abuts on the protruding piece 29 moves toward the rear end side in the second rod member 22 as the swing angle of the lever 31 is increased stepwise.
  • the moving distance of the second rod member 22 necessary for restricting the forward movement is increased stepwise from the position to the position positioned on the front end side, and the swing angle of the backrest 3 is increased in multiple steps. Can be large.
  • the swing angle of the backrest 3 can be changed in multiple stages in this way, it can be changed to various states according to the needs of the person sitting on the chair type massage machine 1. It is possible to increase convenience and design variations. “Third Embodiment” Next, the chair type massage machine 1 of 3rd Embodiment is demonstrated.
  • the switching mechanism 28 when the switching mechanism 28 is in a position where the footrest part 4 hangs down from the seat part 2, switching between the interlocked state and the non-linked state is permitted, and the footrest part 4 hangs down. Switching is restricted by swinging forward from the above state, which is different from the first and second embodiments in this respect.
  • the engagement rib 34 is formed on the outer peripheral surface of the first rod member 13, and the rib engagement portion 36 is formed on the protruding piece 29 of the stopper 28.
  • the engaging rib 34 is engaged with the rib engaging portion 36 so as to be movable in the axial direction, so that the vertical movement of the protruding piece 29 can be restricted.
  • the engaging rib 34 is formed on one side surface of the first rod member 13 so as to protrude radially outward, and is formed horizontally along the axial direction.
  • the engagement rib 34 is formed from the midway side to the rear end side of the first rod member 13 in the front-rear direction (axial direction).
  • a tip member 35 On the front end side of the engagement rib 34, a tip member 35 that is pointed forward is provided.
  • the tip member 35 is provided with inclined surfaces on the upper side and the lower side so that it can be easily inserted into the rib engaging portion 36 even if the vertical position of the protruding piece 29 is slightly shifted.
  • the rib engaging portion 36 is formed in a cutout shape corresponding to the engaging rib 34 on the inner peripheral side of the protruding piece 29, and the engaging rib 34 and a tip member 35 provided on the front end side of the engaging rib 34. And can be engaged with the engaging rib 34 inserted into the rib engaging portion 36 so as to be movable in the axial direction.
  • the rib engaging portion 36 has a lower inner peripheral surface that is inclined so that the opening area increases toward the rear, so that the tip member 35 of the engaging rib 34 can be easily inserted and removed. Yes.
  • the switching mechanism 28 can be switched from the non-interlocking state to the interlocking state after the footrest unit 4 is swung with the switching mechanism 28 being in the non-interlocking state, the second rod member 13 is in a second state. Since the rod member 22 is in a position separated in the axial direction, the second rod member 22 moves forward by the weight of the backrest portion 3 until it engages with the first rod member 13, and the backrest portion 3 vigorously moves backward. Since it falls down, it is not preferable. However, if the switching mechanism 28 is restricted when the footrest part 4 swings forward even slightly from the state in which the footrest part 4 hangs down, the switching mechanism 28 cannot be switched from the non-linked state to the linked state. Therefore, it is possible to prevent such a rapid backward swing of the backrest 3. “Fourth Embodiment” Next, the chair type massage machine 1 of 4th Embodiment is demonstrated.
  • a chair-type massage machine 1 according to the fourth embodiment is a modification of the third embodiment.
  • a protrusion engaging hole 38 that is recessed forward is formed on the inner peripheral surface of the second rod member 22, and the stopper 28.
  • the protruding piece 29 is formed with a retaining protrusion 37 that protrudes rearward.
  • the retaining protrusion 37 is engaged with the protrusion engaging hole 38 so as to be movable in the axial direction.
  • the vertical movement of 29 can be regulated.
  • the protrusion engaging hole 38 is formed in a concave shape on the inner peripheral surface on the upper side of the second rod member 22 and is formed along the axial direction.
  • the front end of the protrusion engaging hole 38 is open toward the front, and the retaining protrusion 37 can be inserted from the front.
  • the retaining protrusion 37 is formed in a protruding shape on the middle side in the vertical direction of the protruding piece 29, and extends rearward from the protruding piece 29.
  • the retaining protrusion 37 is formed at a position corresponding to the protrusion engaging hole 38, and is inserted and engaged with the protrusion engaging hole 38 from the front to restrict the vertical movement of the protruding piece 29. It has become.
  • the switching mechanism 28 of the fourth embodiment as in the third embodiment, the switching mechanism 28 cannot be switched from the non-interlocking state to the interlocking state, so that the backrest 3 swings vigorously backward. There is no movement.
  • switching of the switching mechanism 28 can be controlled with a simpler structure compared with 3rd Embodiment, and manufacturing cost can also be reduced.
  • the switching mechanism 28 whose switching is restricted when the footrest portion 4 shown in the third embodiment or the fourth embodiment starts to swing is also applied to the chair 1 shown in the first embodiment or the second embodiment. Can be applied. “Fifth Embodiment” Next, the chair type massage machine 1 of 5th Embodiment is demonstrated.
  • the second rod member 22 is merely in contact with the first rod member 13 from the rear.
  • the rearward movement with respect to the first rod member 13 was allowed. In other words, if a force is applied to return the backrest 3 that swings in some time to its original standing posture, the backrest 3 may be uncomfortable for a person sitting back and forth.
  • the chair type massage machine 1 of the fifth embodiment is provided with a posture fixing mechanism 40 that fixes the posture of the backrest portion 3 while being swung in the interlocked state.
  • This posture fixing mechanism 40 fixes the posture of the backrest portion 3 while the backrest portion 3 is tilted in the interlocked state, and prevents the posture of the backrest portion 3 from returning to the original standing posture. is there.
  • the posture fixing mechanism 40 also has a function of fixing the posture of the backrest portion 3 while being raised in a non-interlocking state. Therefore, in the following description, the chair type massage machine 1 according to the fifth embodiment will be described by taking as an example one that fixes the posture of the backrest 3 in both the interlocking state and the non-interlocking state.
  • the posture fixing mechanism 40 includes a flip-up member 41 attached to the first rod member 13, and a lock member 42 that moves away from the second rod member 22 by the flip-up member 41. And a stopper hole 43 formed in the housing 21 so that the protruding end 42a of the lock member 42 that has been withdrawn / retracted can be fitted, and the protruding end 42a of the lock member 42 is fitted into the stopper hole 43 and the second By restricting the relative movement between the rod member 22 and the housing 21, the posture of the backrest 3 is fixed.
  • the flip-up member 41 is a plate-like member attached to the side surface of the first rod member 13 using a bolt or the like, and is integrated with the first rod member 13 when moving forward and backward of the first rod member 13. It can be moved.
  • the flip-up member 41 is formed to a thickness that allows a lock member 42 to be described later to be placed thereon, and when viewed from the side, the center in the front-rear direction is thicker (higher) than both ends (substantially trapezoidal) It has become. That is, the upper surface of the flip-up member 41 is a flat surface, but is divided into three parts, the front side, the center side, and the rear side, and the upper surface on the center side is higher than the front side and the rear side. The upper surface on the center side is horizontal, and the upper surfaces on the front side and the rear side are inclined toward the upper surface on the center side.
  • the lock member 42 placed on the upper surface slides up and down without hindrance. Can be moved to.
  • the lock member 42 is a plate-like member having a substantially rectangular cross section cut along the horizontal direction, and is disposed between the first rod member 13 and the second rod member 22 in the front-rear direction. ing.
  • the lock member 42 is removably accommodated in a guide hole 44 formed in the second rod member 22, and the guide hole 44 penetrates the inside and the outside of the second rod member 22 along the vertical direction. It is formed as follows. Therefore, the lock member 42 accommodated in the guide hole 44 is configured to be movable in the vertical direction along the guide hole 44.
  • the lower corner of the lock member 42 is chamfered at two locations on the front side and the rear side.
  • the chamfered portion is formed at the same inclination angle corresponding to the inclined surface of the flip-up member 41 described above, and when the flip-up member 41 moves forward or backward, the lock member 42 is smoothly moved upward or It is possible to guide down.
  • a guide pin 45 is formed on the surface (plate surface) of the lock member 42 on the side opposite to the side facing the second rod member 22.
  • the guide pin 45 is fitted into a guide groove 46 formed in the inner peripheral surface of the guide hole 44 along the vertical direction.
  • the upper and lower ends of the guide groove 46 position the upper and lower limits of the range in which the lock member 42 can move.
  • the protruding end 42a of the lock member 42 is When protruding from the upper surface of the second rod member 22 and the guide pin 45 is positioned at the lower end of the guide groove 46, the lower end of the lock member 42 is allowed to descend to a position where it contacts the inclined surface of the flip-up member 41.
  • the stopper hole 43 is a hole formed on the upper side of the housing 21 so that the protruding end 42a of the locking member 42 moved upward by the flip-up member 41 can be inserted, and the protruding end 42a of the locking member 42 is inserted in the interlocked state.
  • the first stopper hole 47 is provided with a second stopper hole 48 into which the protruding end 42a of the lock member 42 is inserted when not engaged.
  • the first stopper hole 47 and the second stopper hole 48 are spaced apart in the front-rear direction (the distance between the step 27 of the first rod member 22 and the rear end surface of the housing 21), and have the same lateral position.
  • the first stopper hole 47 formed on the front side of the housing 21 and the second stopper hole 48 formed on the rear side can be engaged with the lock member 42. Whether the stopper hole 43 into which the lock member 42 is inserted is the first stopper hole 47 or the second stopper hole 48 is selected depending on whether the stopper 28 described above is in an interlocked state or a non-interlocked state. Can do.
  • FIG. 11A in the interlocked state in which the stopper 28 is moved upward, when the drive motor 17 is rotated in the forward rotation direction and the first rod member 13 is moved forward, FIG. Since the 2nd rod member 22 is not being fixed to the housing 21 as shown in (1), the 1st rod member 13 and the 2nd rod member 22 move ahead integrally.
  • the step 27 abuts on the rear end surface of the housing 21 as shown in FIG. 11C, only the second rod member 22 is restricted from moving forward and only the first rod member 13 moves forward. It becomes like this.
  • the inclined surface formed on the front side of the flip-up member 41 pushes up the chamfered portion on the rear side of the lock member 42, the lock member 42 slides upward along the inclined surface, and the guide pin 45 is inserted. Guided by the groove 46, the lock member 42 moves upward. Then, the protruding end 42 a of the lock member 42 protrudes from the upper surface of the second rod member 22 and fits into the first stopper hole 47 formed on the front side of the housing 21, so that the second rod member 22 moves forward with respect to the housing 21. It will be in the fixed state which does not move back.
  • the second rod member is moved forward by rotating the drive motor 17 in the forward direction and moving the first rod member 13 forward. Since 22 is fixed to the housing 21 by the stopper 28, only the first rod member 13 moves forward while leaving the second rod member 22. Then, as shown in FIGS. 12 (b) and 12 (c), the flip-up member 41 pushes up the lock member 42 in the same manner as in the interlocked state, so that the protruding end 42 a of the lock member 42 is formed on the rear side of the housing 21. The second rod member 22 is fitted into the second stopper hole 48 thus fixed, so that the second rod member 22 does not move forward or backward relative to the housing 21, and the posture of the backrest 3 is fixed.
  • the lock member 42 is moved downward by being guided by the inclined surface formed on the rear side of the flip-up member 41.
  • the lock member 42 is lowered until the guide pin 45 is positioned at the lower end of the guide groove 46, the guide pin 45 is positioned at the lower end of the guide groove 46, and the lowering of the lock member 42 is stopped. There is no descent.
  • the chair 1 of this invention was demonstrated taking the example of the chair type massage machine.
  • the chair 1 of the present invention is a chair that can be reclined when washing hair in a beauty salon or barbershop, a chair or sofa that can be reclined when relaxing in a living room, or a seat on which passengers sit on a vehicle such as an airplane or train Can be used.
  • the stopper 28 is illustrated on the upper surface side of the second rod member 22. However, the stopper 28 may be provided on the side surface side or the lower surface side of the second rod member 22.
  • the switching mechanism 28 that protrudes toward the second rod member 22 and switches from the interlocking state to the non-interlocking state when the stopper 28 contacts the opening edge of the second rod member 22 is taken as an example.
  • a lock pin that is electrically retracted as a stopper 28 is provided, and a hole that engages with the lock pin is provided on the outer peripheral surface of the second rod member 22.
  • a switching mechanism 28 that is formed at one place or a plurality of places and the lock pin is engaged with the hole of the second rod member 22 to switch from the interlocking state to the non-interlocking state.
  • the first rod member 13 is inserted into the second rod member 22, and the relative movement of the first rod member 13 with respect to the second rod member 22 is restricted by contacting the inner bottom portion 26 of the second rod member 22.
  • the swing mechanism 5 to be performed is illustrated.
  • a protrusion that protrudes toward the first rod member 13 is provided on the second rod member 22, and the first rod member 13 is brought into contact with the protrusion so that the first rod member 13 is relative to the second rod member 22.
  • the switching mechanism 28 in which the protruding piece 29 of the stopper 28 contacts the contact surface 32 provided on the front end side of the second rod member 22 is exemplified.
  • the abutment surface 32 can be provided on the rear end side of the second rod member 22 so that the backrest portion 3 can be swung almost horizontally.
  • a plurality of contact surfaces 32 that can come into contact with the projecting pieces 29 of the stopper 28 are provided on the outer peripheral surface of the second rod member 22 at different positions in the front-rear direction.
  • the chair 1 that can change the swing angle of the backrest 3 in multiple stages by abutting on any of the contact surfaces 32 is illustrated.
  • the swing angle of the backrest 3 can be changed in multiple stages by providing a plurality of stoppers 28 with different positions in the front-rear direction and the front end edge of the second rod member 22 abutting one of the plurality of stoppers 28. You may do it.
  • the first rod is disposed on the distal end side of the first rod member 13.
  • a connecting member 50 that can move back and forth with respect to the member 13 and connects the first rod member 13 and the footrest portion 4 is provided, and the connecting member 50 is an elastic member 51 disposed in the first rod member 13. Accordingly, the first rod member 21 may be biased toward the proximal end side.
  • the connecting member 50 is formed in a square bar shape, and the rod-like connecting member 50 is accommodated in the first rod member 21 so as to freely enter and exit in the front-rear direction.
  • a spring 51 elastic member 51
  • the connecting member 50 is urged rearward. It will be. In this way, even if an object is caught between the footrest part 4 and the seat part, the connecting member 50 moves so as to extend from the first rod member 21 against the spring 51, so that the object is driven. The force of the motor 17 does not reach directly, and the pinched object can be prevented from being damaged. Moreover, if the footrest part 4 is pulled away in the anti-oscillation direction by hand against the urging force of the elastic member 51, it is easy to remove the pinched object.
  • the protrusion piece 29 of the stopper when the protruding piece 29 of the stopper is caught in the midway position in the vertical direction, there is a possibility that switching between the interlocking state and the non-interlocking state cannot be performed reliably.
  • the protrusion piece 29 in the movement path along the vertical direction of the protrusion piece 29, the protrusion piece 29 is biased upward when the protrusion piece 29 is positioned above the movement path.
  • a switching urging mechanism 52 that switches between the urging state and the urging state in which the protruding piece 29 is urged downward when the protruding piece 29 moves to the lower side of the movement path may be provided.
  • the base end side of the urging means 53 such as a spring is placed on a line L connecting the protruding piece 29 and the swing center P of the protruding piece 29 as shown in FIG. It is possible to employ a fixing means that connects the distal end side of the urging means 53 to the protruding piece 29 and applies an urging force to the protruding piece 29. In this way, when the position of the projecting piece 29 is above the neutral position on the line L described above, the member supporting the projecting piece 29 is attached in a direction to rotate upward about its swing center P. A force acts, and the protruding piece 29 is urged upward along the movement path.
  • the protruding piece 29 when the protruding piece 29 is below the neutral position, a biasing force acts in the direction opposite to the above-described operation, and the protruding piece 29 is biased downward. As a result, the protruding piece 29 does not stay in the middle position of the movement path, and the protruding piece 29 is always located at either the upper end or the lower end of the movement path, so that switching between the interlocking state and the non-interlocking state is ensured. Will be able to do.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Massaging Devices (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

L'invention porte sur un siège configuré de façon à ce que le repose-pieds et le dossier puissent pivoter, le repose-pieds et le dossier étant amenés à pivoter vers différentes orientations au moyen d'une structure simple et légère. Le siège (1) est muni d'une section d'assise (2), d'un dossier (3) placé avec possibilité de pivotement sur la face postérieure de la section d'assise (2), d'un repose-pieds (4) placé avec possibilité de pivotement sur la face antérieure de la section d'assise (2), et d'un mécanisme de pivotement (5) amenant le repose-pieds (4) et le dossier (3) à pivoter par rapport à la section d'assise (2). Le mécanisme de pivotement (5) est muni d'un mécanisme de commutation (28) sélectionnant soit un état verrouillé dans lequel le dossier (3) pivote conjointement avec le pivotement du repose-pieds (4), soit un état non verrouillé dans lequel le dossier (3) ne pivote pas, mais dans lequel seul le repose-pieds (4) pivote.
PCT/JP2010/063911 2009-12-03 2010-08-18 Siège WO2011067968A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009275637A JP2010162337A (ja) 2008-12-18 2009-12-03 椅子
JP2009-275637 2009-12-03

Publications (1)

Publication Number Publication Date
WO2011067968A1 true WO2011067968A1 (fr) 2011-06-09

Family

ID=44115628

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/063911 WO2011067968A1 (fr) 2009-12-03 2010-08-18 Siège

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Country Link
WO (1) WO2011067968A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015083398A (ja) * 2013-10-25 2015-04-30 トヨタ紡織株式会社 シートバック連動式オットマン装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0824067A (ja) * 1994-07-18 1996-01-30 Fr Bed Medical Service Kk リクライニングチェア
JP2005103138A (ja) * 2003-10-01 2005-04-21 T S Tec Kk 多機能チェア
JP2005124950A (ja) * 2003-10-27 2005-05-19 Shiroki Corp リクライニングシート装置
JP2006346272A (ja) * 2005-06-17 2006-12-28 Family Co Ltd 椅子型マッサージ機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0824067A (ja) * 1994-07-18 1996-01-30 Fr Bed Medical Service Kk リクライニングチェア
JP2005103138A (ja) * 2003-10-01 2005-04-21 T S Tec Kk 多機能チェア
JP2005124950A (ja) * 2003-10-27 2005-05-19 Shiroki Corp リクライニングシート装置
JP2006346272A (ja) * 2005-06-17 2006-12-28 Family Co Ltd 椅子型マッサージ機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015083398A (ja) * 2013-10-25 2015-04-30 トヨタ紡織株式会社 シートバック連動式オットマン装置

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