EP2767188B1 - Winkeleinstellbares Scharnier und Sofa - Google Patents

Winkeleinstellbares Scharnier und Sofa Download PDF

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Publication number
EP2767188B1
EP2767188B1 EP13194611.3A EP13194611A EP2767188B1 EP 2767188 B1 EP2767188 B1 EP 2767188B1 EP 13194611 A EP13194611 A EP 13194611A EP 2767188 B1 EP2767188 B1 EP 2767188B1
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EP
European Patent Office
Prior art keywords
angle
face
floating wedge
gear portion
inclining
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP13194611.3A
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English (en)
French (fr)
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EP2767188A1 (de
Inventor
Tadanobu Yamashita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koyo Giken KK
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Koyo Giken KK
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Publication date
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Publication of EP2767188A1 publication Critical patent/EP2767188A1/de
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Publication of EP2767188B1 publication Critical patent/EP2767188B1/de
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Classifications

    • 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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • 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
    • A47C7/38—Support for the head or the back for the head
    • 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
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
    • 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
    • A47C7/54—Supports for the arms
    • A47C7/541—Supports for the arms of adjustable type

Definitions

  • This invention relates to an angle-adjustable hinge and a sofa.
  • a legless chair shown in a perspective view of figure 19 for example, having a seat portion 31 and a back portion 32, is provided with a joint hinge (angle-adjustable hinge) having an angle-adjusting mechanism between the back portion 32 and the seat portion 31 to adjust inclination angle of the back portion 32.
  • a joint hinge angle-adjustable hinge
  • the applicant of the present invention proposed an angle-adjustable hinge constructed as to randomly set the angle formed by a first member on the seat portion 31 side and a second member on the back portion 32 side (refer to Japanese patent No. 5091362 ).
  • the angle-adjustable hinge disclosed by Japanese patent No. 5091362 is constructed to make oscillation of the second member toward the first member in standing direction possible, and hold at a desired inclination angle with restriction of oscillation in inclining direction with multi stage.
  • the conventional angle-adjustable hinge is provided with a gear portion formed on the second member and a floating wedge member of which one side is a toothed face engaged to the gear portion and another side is a contact face to contact a wedge face of the first member, and the oscillation of the second member toward the first member in the inclining direction is restricted by wedge function of the floating wedge member.
  • the engagement of the floating wedge member and the gear portion is released, the above-mentioned wedge function is nullified, and the second member is freely oscillated in the inclining direction.
  • the wedge function can't be recovered until a horizontally opened state in which the angle formed by the first member and the second member is 180° .
  • the back portion may not be horizontally opened and have to be opened by force with raising the seat portion. This causes disadvantage of bad utility and laborious operation.
  • An angle-adjustable hinge of the present invention for example, used for a sofa having an inclinable rest portion as shown in a perspective view of figure 18 , has an angle-adjusting mechanism to adjust the inclination angle of the rest portion.
  • the angle-adjustable hinge is disposed on a connecting portion 33 between a seat portion 31 and a back portion 32 to adjust the inclination angle of the back portion 32 in a legless chair having the seat portion 31 and the back portion 32 as shown in figure 19 , and can be used as a joint hinge (connecting hinge) to connect the seat portion 31 and the back portion 32.
  • the angle-adjustable hinge 30, other than for the sofa and the legless chair can be used for connecting seat portions and back portions in bed, reclining chair, etc., or used as a joint hinge of headrests, footrests, etc.
  • the angle-adjustable hinge of the present invention in which a first member 1 and a second member 2 having a gear portion 4 is connected as to oscillate around a first axis C 1 , is provided with a floating wedge member 6 of which one side is a toothed face 7 engaged to the gear portion 4 and another side is a contact face 9 to contact a wedge face 8 formed on the first member 1 side.
  • the first member 1 has a case portion 23 having a pair of facing wall portions 17 and a cylindrical attachment portion 18.
  • a through hole 21 to which a pivot shaft 24 is inserted and a wedge-shaped window portion 5 to movably hold the floating wedge member 6 are formed on the case portion 23 (facing wall portions 17).
  • the wedge-shaped window portion 5 has the wedge face 8 arc-shaped outwardly when observed with the first axis C 1 side as a center.
  • the wedge-shaped window portion 5 has a retreat space 15 to store the floating wedge member 6 parted from the gear portion 4.
  • the second member 2 has two mutually parallel gear plate portions 45 and a cylindrical attachment portion 19.
  • the gear portion 4 is formed on an arc-shaped peripheral edge portion of the gear plate portion 45 of which center is the first axis C 1 for a range of, for example, a center angle of 100° to 120°.
  • the floating wedge member 6 and the gear portion 4 engage on two positions in width direction, and all teeth of the toothed face 7 simultaneously engage with the gear portion 4.
  • a protruding portion 14 is formed on a beginning portion and an end portion of the gear portion 4.
  • a shaft receiving hole 22 is formed on the gear plate portion 45 to insert the pivot shaft 24.
  • 13 to 20 teeth are formed on the toothed face 7 of the floating wedge member 6, and more than 40 teeth, more preferably 45 to 65 teeth are formed on the gear portion 4. Therefore, number of angle adjustment stages can be made more than 40.
  • the first member 1 is provided with a spring member 16 to contact and elastically push the floating wedge member 6 in a direction to be pressed to the gear portion 4.
  • the angle-adjustable hinge of the present invention is provided with a recovery means 10 which recovers the floating wedge member 6 in the retreat state to the engaged state with the gear portion 4 by a return action M 2 of a predetermined small angle ⁇ in the standing direction A during the inclining action M 1 in which the first member 1 and the second member 2 in the final standing position P 0 are relatively oscillated in the inclining direction B.
  • the recovery means 10 is provided with a pressed frictional plate 13 press-fit with small frictional force to the second member 2 as to slide and restricted to the first member 1 as to rotate within a range of the predetermined small angle ⁇ , and a lever member 3 of which end 3a is connected (pivoted as to oscillate for a small angle) to the pressed frictional plate 13 and freely oscillated for a predetermined angle range with a middle portion as a fulcrum 42, and another end 3b is disposed to be pressed to the floating wedge member 6 in the retreat state.
  • the floating wedge member 6 keeps the retreat state (kept on a non-pressed position V 1 on which the end 3b of the lever member 3 does not press the floating wedge member 6) during the inclining action M 1 of the first member 1 and the second member 2 in the inclining direction B.
  • the pressed frictional plate 13 is rotated by frictional force with the second member 2 for the predetermined small angle ⁇ , and the lever member 3 (moving to a pressed position V 2 on which the end 3b presses the floating wedge member 6) presses the floating wedge member 6 upward to make the gear portion 4 and the toothed face 7 engaged.
  • the lever member 3 is composed of metal (or resin) of high rigidity formed approximately V-shape.
  • the end 3a has a short cylindrical head, fit to an arc-shaped concave portion of the pressed frictional plate 13, and held as to freely oscillate.
  • the lever member 3 is formed as that a lower face of the middle portion contacts the first member 1 on the fulcrum 42, and when the end 3a is moved up and down like a seesaw, the corresponding end 3b moves oppositely down and up.
  • a pivot hole 25 to which the pivot shaft 24 is inserted is formed on the center of the pressed frictional plate 13, and an elongated hole 29 is formed through a protruding piece 43 protruding from a part of the peripheral edge.
  • the pressed frictional plate 13 has a pair of sliding convex portions 26 protruding on left and right side faces, and plural sliding piece portions 27 bent in left and right directions in turn to be curved.
  • the pressed frictional plate 13 is inserted to the inner faces of the gear plate portions 45 of the second member 2 to be pressed, the gear plate portions 45 are set to the facing wall portions 17 (case portion 23) of the first member 1 to be held, and the first member 1, the second member 2, and the pressed frictional plate 13 are pivoted by insertion of the pivot shaft 24 to the case portion 23.
  • a stopper pin member 28 fixed to the first member 1 is inserted to the elongated hole 29 of the pressed frictional plate 13, and the pressed frictional plate 13 is attached as to rotate around the first axis C 1 as the center within the range of the predetermined small angle ⁇ .
  • a cover member 20 of resin surrounding the case portion 23 of the first member 1 is provided.
  • the cover member 20 having a bottom wall portion 20A covering the lower faces of the first member 1 and the second member 2, side wall portions 20B covering left and right side faces, and a ceiling wall portion 20C covering over the parts such as the floating wedge member 6 unitedly, is fixed to the first member 1 by a hitching piece 35 of metal having insertion holes 39.
  • a slit-shaped opening portion 36 to which the second member 2 can intrude when oscillated in the standing direction A is formed on a part of the ceiling wall portion 20C, and a lip 37 of thin piece, of which width can be widened to slide on the second member 2, is disposed on both end edges of the opening portion 36.
  • the side wall portion 20B contacts or comes close to the side end face of the floating wedge member 6 to prevent falling, and has a hole portion 38 on a position corresponding to the through hole 21.
  • the hitching piece 35 is attached to the case portion 23 of the first member 1 surrounded by the cover member 20 as to hold the side wall portions 20B with elastic force, further, the pivot shaft 24 is inserted to the insertion holes 39, the hole portion 38, the shaft receiving hole 22, the pivot hole 25, and the shaft receiving hole 22 to connect the first member 1, the second member 2, the cover member 20, and the hitching piece 35.
  • the bottom wall portion 20A may have a flexible tongue portion 40 separated from the side wall portion 20B and oscillatable upward and downward.
  • the lever member 3 oscillates to the non-pressed position V 1 , the end 3a gives rotational force to the pressed frictional plate 13, and the pressed frictional plate 13 rotates in an arrow R direction (clockwise direction in figures) only for the small angle ⁇ .
  • the lower end of floating wedge member 6 hits the bottom face of the wedge-shaped window portion 5 to stop, and the second member 2 does not oscillate further in the standing direction A beyond the final standing position P 0 .
  • a plate-shaped member may be used to press the contact face 9 of the floating wedge member 6 instead of the wedge-shaped window portion 5.
  • design and dimensional ratio of the cover member 20 may be changed.
  • lever member 3 described with figure 1 through figure 14 as long as a connecting member to move and push (take or draw) the floating wedge member 6 out of the retreat state in the opposite direction (clockwise direction) along with the rotation of the pressed frictional plate 13 (in anticlockwise direction) for the small angle ⁇ from figure 12 to figure 13 , may be modified to various designs.
  • the embodiment in figure 15 through figure 17 is provided with a pair of wall portions 62 formed circular of which center is an oscillation axis L, four wedge-shaped window portions 65 disposed rotation symmetric of which axis of symmetry is the oscillation axis L on each of the wall portions 62, a pair of floating wedge members 6 movable within the (two of four) wedge shaped window portions 65, disposed on positions rotation symmetric for 180° with the oscillation axis L as the axis of symmetry, and having a toothed face 7 on one side, a pair of arc-shaped gear portions 4 disposed between the wall portions 62 and formed as outer teeth which engage with the toothed face 7 around the oscillation axis L as the center, and spring wires 66 to always elastically push the floating wedge members 6 to the gear portions 4.
  • a first member 1 is composed of facing plate pieces 61 and formed as to include the gear portions 4 between the wall portions 62. And, a center hole concentric with the oscillation axis L is formed through the wall portion 62.
  • a second member 2 has the gear portions 4 on an attached piece portion disposed between the wall portions 62, and a non-circular hole 73 is formed through the center portion of the attached piece portion to correspond to the center hole of the wall portion 62.
  • the first member 1 and the second member 2 are connected by a pivot member 63 as to oscillate around the oscillation axis L.
  • the pivot member 63 has a non-circular portion 86 can be fit to the non-circular hole 73.
  • the wedge-shaped window portion 65 In the wedge-shaped window portion 65, of which inner side near the oscillation axis L is an arc face, an arc-shaped wedge face 8 is formed on an outer side.
  • the wedge face 8 is eccentric from the oscillation axis L, and formed as a gap between the wedge face 8 and the gear portion 4 is made gradually small (close) toward the clockwise direction in figure 17 .
  • the wedge shaped window portion 65 in which a floating staged portion for guiding the floating wedge member 6 protruding from the arc face on the inner side is formed, has a retreat space 15 to store the floating wedge member 6 under a released state of the engagement of the toothed face 7 and the gear portion 4.
  • Each of the pair of floating wedge members 6 is respectively inserted to each of the wedge-shaped window portions 65 disposed rotation symmetric for 180°.
  • the floating wedge members 6 is formed slightly larger than the interval dimension of the wall portions 62, and both end portions are protruding from the outside faces of the wall portions 62 when inserted to the wedge-shaped window portion 65.
  • one side is the toothed face 7
  • another side is a contact face 9 to contact the wedge face 8
  • a guiding sloped face 64 to contact the floating staged portion on the inner side of the wedge-shaped window portion 65 and guide itself in a parting direction from the gear portion 4 is formed on a rear edge portion of the toothed face 7.
  • the pair of gear portions 4 is formed as outer teeth on positions rotation symmetric for 180 ° with the oscillation axis L as the axis of symmetry on arc-shaped escape window portions 68 to which the floating wedge members 6 are inserted, and having a configuration with which stress concentration is hardly generated on the attached piece portion having the non-circular hole 73.
  • a push-in protruding portion to press the floating wedge member 6 to the retreat space 15 is formed on an end portion side (end portion of engagement) of the gear portion 4, and a push-out protruding portion to push the floating wedge member 6 out of the retreat space 15 is formed on another end portion side (beginning portion of engagement).
  • the spring wire 66 of which one end is straight and another end is bent into a hook or a circle, is attached to a supporting pin protruding from the outer side face of the wall portion 62.
  • the spring wire 66 pressed to the contact face 9 of the floating wedge member 6 and elastically deformed into an arc, always elastically pushes the floating wedge member 6 (with recovery force) in a direction to the gear portion 4.
  • the angle-adjustable hinge of the present invention is provided with a recovery means 70 which recovers the floating wedge member 6 in the retreat state to the engaged state with the gear portion 4 by a return action M 2 of a predetermined small angle ⁇ in the standing direction A during the inclining action M 1 in which the first member 1 and the second member 2 in the final standing position are relatively oscillated in the inclining direction B.
  • the recovery means 70 is provided with a ring member 72 which rotates to the wall portion 62 within a range of the predetermined small angle ⁇ , an oscillation member 71 of which end 71a is interlockingly connected to the ring member 72 and freely oscillated for a predetermined angle range with a middle portion as a fulcrum, and another end 71b is disposed to be pressed to the floating wedge member 6 in the retreat state, and a pressed frictional member 75, having a non-circular fitting hole 69 to which the pivot member 63 is fit and an elastic portion 74 which rotates with the pivot member 63 and slides on the ring member 72 with elastic push in an axial inner direction.
  • the floating wedge member 6 keeps the retreat state (kept on a position on which the end 71b of the oscillation member 71 does not press the floating wedge member 6) during the inclining action M 1 of the first member 1 and the second member 2 in the inclining direction B.
  • the ring member 72 is rotated by frictional force with the elastic portion 74 for the predetermined small angle ⁇ , and the oscillation member 71 (moving to a position on which the end 71b presses the floating wedge member 6) presses the floating wedge member 6 (as to push out of the retreat space 15) to make the gear portion 4 and the toothed face 7 engaged.
  • the ring member 72 is formed into a ring having a circular hole portion 82 to which the pivot member 63 is inserted, and having a hitching hole portion 84 corresponding to a small protrusion 83 protruding from the outer side face of the wall portion 62 and an arc-shaped notched portion 85 on a peripheral edge.
  • the small protrusion of the ring member 72 is movably hitched to the hitching hole portion 84 (with a clearance) and rotatable around the oscillation axis L as a center within a range of the predetermined small angle ⁇ .
  • the oscillation member 71 is composed of metal (or resin) of high rigidity formed approximately V-shape.
  • the end 71a (formed into a short cylinder shape) is fit to the arc-shaped notched portion 85 and interlockingly connected to the ring member 72.
  • a pivot hole portion 81 is formed on a middle portion of the oscillation member 71, and a pivot shaft portion 67 protruding from the outer side face of the wall portion 62 is inserted to the pivot hole portion 81.
  • the oscillation member 71 is pivoted on (the outer side face of) the wall portion 62 as that the end 71a of the oscillation member 71 is moved up and down like a seesaw, the corresponding end 71b moves oppositely down and up.
  • the elastic portion 74 is formed ringshaped, and plural small convex portions 87 are protruding from one end face.
  • the elastic portion 74 is composed of elastically deformable resin (or metal), and another end face of the elastic portion 74 is a sliding face 79 (elastically pushing in the axial inner direction in an assembled and used state described later) sliding on the ring member 72.
  • the pressed frictional member 75 is formed ring shaped, and plural small concave portions 88 are formed corresponding to the small convex portions 87 of the elastic portion 74.
  • the elastic portion 74 is attached by insertion of the plural small convex portions 87 to the small concave portions 88 as to rotate (corotate) unitedly with the pressed frictional member 75. And, it is also preferable to form the elastic portion 74 with the pressed frictional member 75 as one unit.
  • the pressed frictional member 75 is disposed on an outer side of the ring member 72, and the elastic portion 74 contacts the outer face of the ring member 72.
  • the sliding face 79 of the elastic portion 74 is arc-shaped under an uncompressed state.
  • the pressed frictional member 75 is held by cover members 90 of thin disc from outer side in the oscillation axis L direction.
  • the wall portions 62, the gear portions 4, the ring members 72, and the pressed frictional members 75 are surrounded by the cover members 90, and concentrically pivoted by a hitching member 89 on both end portions of the pivot member 63.
  • the floating wedge member 6 slightly moves within the window portion 5, and the contact face 9 is parted from the wedge face 8 to form a slight gap d.
  • the guiding sloped face 64 of the floating wedge member 6 climbs up the staged portion of the window portion 65, the toothed face 7 of the floating wedge member 6 is parted from the gear portion 4 by the gap d, and the toothed face 7 goes over the gear portion 4 with click sound.
  • the second member 2 is made oscillate in the inclining direction B to the first member 1, the oscillation is restricted (stopped) by wedge function of the floating wedge member 6, and the posture of the second member 2 is kept (held fixed).
  • the second member 2 when the second member 2 is oscillated in the standing direction A further to make a standing lock-releasing position, under the state in which the push-in protruding portion contacts the floating wedge member 6, the floating wedge member 6 is pushed by the push-in protruding portion and moved to the retreat space 15 to be stored, and the toothed face 7 is parted from the gear portion 4 (the retreat state is made).
  • the other end 71b of the oscillation member 71 is pushed by the floating wedge member 6 and oscillated, the end 71a of the oscillation member 71 pushes the ring member 72, and the ring member 72 is rotated only for the small angle ⁇ in clockwise direction in figures.
  • the ring member 72 although receiving the rotational force in the clockwise direction by frictional force with the elastic portion 74 when the second member 2 is oscillated in the inclining direction B, is hitched by the contact of the small protrusion 83 with the (hitching) concave portion 84. That is to say, the oscillation member 71 is kept without oscillation in the inclining action M1 of the second member 2 in the inclining direction B, and the floating wedge member 6 is kept in the retreat state.
  • the engaged state in which the toothed face 7 of the floating wedge member 6 is engaged with the gear portion 4 and the contact face 9 contacts the wedge face 8, is made, the wedge function of the floating wedge member 6 is recovered, and the oscillation of the second member 2 in the inclining direction B is restricted.
  • the locked state is easily recovered on a random middle inclined position on way of oscillation of the second member 2 in the inclining direction B from the final standing position, and angle adjustment is started by oscillation from the middle inclined position in the standing direction A.
  • a plate-shaped member may be used to press the contact face 9 of the floating wedge member 6 instead of the (wedge-shaped) window portion 65. And, design and dimensional ratio of the cover member 90 may be changed.
  • the number of gear teeth of the toothed face 7 and the gear portion 4 may be increased beyond the above-mentioned numbers, and oppositely, may be decreased below the above-mentioned numbers according to the cases.
  • the forming method of the gear teeth may be selected from various plastic (press) works, die-casting, roulette work, etc.
  • the oscillation member 71 as shown in figure 18 may be modified to various designs.
  • the pivot member 63 has a regular hexagonal shaft portion, and the non-circular hole 73 of the fixation piece of the second member 2 is correspondently regular hexagonal.
  • the pivot member 63 and the non-circular hole 73 as long as being mutually fitting non-circular, may be various polygons, or other configurations.
  • the angle-adjustable hinge of the present invention in a sofa having rest portions 51 such as headrests, armrests, and footrests as shown in figure 18 is very convenient because the lock (inclination stop) in the inclining direction B is recovered by the return action M 2 in the direction A for the predetermined small angle ⁇ conducted during the inclining action M 1 of the rest portion 51 oscillated from the final standing position in the inclining direction B, and the rest portion 51 is kept in the middle inclined posture.
  • the headrest and the armrest can be held in the middle inclined posture by returning in the standing direction A during the inclining action M 1 even if the frame member is plastically deformed and bent in the inclining direction B because the lock (inclination stop) can be recovered without the inclination of the headrest and the armrest beyond the horizontal opened posture.
  • the angle-adjustable hinge of the present invention is used for a legless chair as shown in figure 19 having a seat portion 31 and a back portion 32, and provided with an angle-adjustable hinge 30 having angle-adjusting function on a connecting portion 33 of the seat portion 31 and the back portion 32 as to adjust the inclination angle of the back portion 32.
  • the oscillation of the back portion 32 to the seat portion 31 in the standing direction A is made possible, the oscillation of the back portion 32 in the inclining direction B is restricted, and, (free) oscillation of the back portion 32 in the inclining direction B is made possible by releasing restriction by making the back portion 32 approximately vertical to the seat portion 31 to make a final standing position
  • the restriction (inclination stop) in the inclining direction B is recovered by the return action M 2 in the direction A for the predetermined small angle ⁇ conducted during the inclining action M 1 of the back portion 32 oscillated from the final standing position To in the inclining direction B, and the back portion 32 is kept in the middle inclined posture T 1 .
  • the angle-adjustable hinge relating to the present invention can make the floating wedge member 6 certainly engaged to the gear portion 4 and restrict the oscillation of the first member 1 and the second member 2 in the inclining direction B by the small return action in the standing direction A on a random position on way of oscillation of the first member 1 and the second member 2 from the final standing position P 0 in the inclining direction B because in the angle-adjustable hinge relating to the present invention, the first member 1 and the second member 2 having the gear portion 4 are pivoted as to oscillate, the floating wedge member 6, of which one face is the toothed face 7 engaged to the gear portion 4 and another face is the contact face 9 which contacts the wedge face 8 formed on the first member 1 side, is provided, relative oscillation of the first member 1 and the second member 2 in the inclining direction B is restricted under the engaged state in which the toothed face 7 and the gear portion 4 are engaged, the retreat state is made by moving the floating wedge member 6 to part from the gear portion 4 for releasing the engagement of the toothe
  • the first member 1 and the second member 2 can be easily held with a desired inclination angle before the first member 1 and the second member 2 are opened horizontal to form an angle of 180°.
  • the floating wedge member 6 keeps the retreat state without errors during the inclining action M 1 , and the floating wedge member 6 is certainly moved by the return action M 2 in the standing direction A to make the engaged state of the gear portion 4 and the toothed face 7 because the recovery means 10 is provided with the pressed frictional plate 13 slidably press-fit to the second member 2 and restricted as to rotate within a range of the predetermined small angle ⁇ , and the lever member 3 of which one end 3a is connected to the pressed frictional plate 13 and oscillated around the middle portion as a fulcrum within a predetermined angle range, and another end 3b is disposed as to be pressed to the floating wedge member 6 in the retreat state, and, the floating wedge member 6 keeps the retreat state during the inclining action M 1 of the first member 1 and the second member 2 in the inclining direction B, and the pressed frictional plate 13 is rotated by frictional force with the second member 2 for the predetermined small angle ⁇ by the return action M 2 in the standing direction A and the lever member 3 presse
  • the sofa of the present invention can hold the rest portion 51 with a desired angle by a simple operation during the oscillation in the inclining direction B after the rest portion 51 is made the final standing position because the sofa has the inclinable rest portion 51 using the above-described angle-adjustable hinge to adjust the inclination angle of the rest portion 51. Therefore, it is very convenient to easily adjust the rest portion 51 to a desired inclination angle even in a case that the lock (inclination stop) in the inclining direction can't be recovered without inclination of the rest portion 51 such as a headrest and an armrest beyond the horizontal opened posture for plastic deformation generated in the frame of the rest portion 51.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)

Claims (3)

  1. Winkeleinstellbares Scharnier mit einer Konstruktion, bei der:
    ein erstes Element (1) und ein zweites Element (2) mit einem Zahnradabschnitt (4) derart verschwenkt werden, dass sie sich hin und her bewegen;
    ein schwimmendes Keilelement (6) bereitgestellt ist, bei dem eine Fläche eine Zahnfläche (7) ist, die mit dem Zahnradabschnitt (4) in Eingriff ist, und eine andere Fläche eine Kontaktfläche (9) ist, die mit einer Keilfläche (8) in Kontakt kommt, die auf Seiten des ersten Elements (1) ausgebildet ist;
    eine Relativbewegung des ersten Elements (1) und des zweiten Elements (2) in einer Neigungsrichtung (B) unter einem Eingriffszustand begrenzt ist, bei dem die Zahnfläche (7) und der Zahnradabschnitt (4) in Eingriff sind;
    ein zurückgezogener Zustand dadurch hergestellt ist, dass das schwimmende Keilelement (6) derart bewegt wird, dass es sich von dem Zahnradabschnitt (4) löst, und zwar zum Lösen des Eingriffs der Zahnfläche (7) und des Zahnradabschnitts (4) durch Relativbewegung des ersten Elements (1) und des zweiten Elements (2) in einer Aufstellrichtung (A) hin zu einer endgültigen Aufstellposition (P0); und
    die Relativbewegung des ersten Elements (1) und des zweiten Element (2) in der Neigungsrichtung (B) unter dem zurückgezogenen Zustand ermöglicht wird:
    dadurch gekennzeichnet, dass eine Einzieheinrichtung (10) bereitgestellt ist, und zwar zum Einziehen des schwimmenden Keilelements (6) von dem zurückgezogenen Zustand zum Eingriffszustand mit dem Zahnradabschnitt (4) durch einen Rückführvorgang (M2) in einem vorbestimmten kleinen Winkel
    (θ) in der Aufstellrichtung (A) während eines Neigungsvorgangs (M1), um das erste Element (1) und das zweite Element (2) von der endgültigen Aufstellposition (P0) in der Neigungsrichtung (B) relativ zueinander zu bewegen.
  2. Winkeleinstellbares Scharnier nach Anspruch 1, bei dem:
    die Einzieheinrichtung (10) mit einer gepressten Reibungsplatte (13), die gleitbar an das zweite Element (2) pressgepasst ist und derart begrenzt ist, dass sie innerhalb eines Bereichs des vorbestimmten kleinen Winkels (θ) rotiert, und einem Hebelelement (3) versehen ist, bei dem ein Ende (3a) mit der gepressten Reibungsplatte verbunden ist (13) und sich um einen Mittelabschnitt als ein Drehpunkt und innerhalb eines vorbestimmten Winkelbereichs hin- und her-bewegt, und ein anderes Ende (3b) derart angeordnet ist, dass es an das schwimmende Keilelement (6) in dem zurückgezogenen Zustand gepresst wird; und
    das schwimmende Keilelement (6) den zurückgezogenen Zustand während des Neigungsvorgangs (M1) des ersten Elements (1) und des zweiten Elements (2) in der Neigungsrichtung (B) hält, und die gepresste Reibungsplatte (13) durch Reibungskraft mit dem zweiten Element (2) für den vorbestimmten kleinen Winkel (θ) durch den Rückführvorgang (M2) in der Aufstellrichtung (A) rotiert wird, und das Hebelelement (3) das schwimmendes Keilelement (6) derart drückt und bewegt, dass der Zahnradabschnitt (4) und die Zahnfläche (7) in Eingriff gelangen.
  3. Sofa mit einem neigbaren Auflageabschnitt (51), dadurch gekennzeichnet, dass das winkeleinstellbare Scharnier nach Anspruch 1 oder Anspruch 2 zur Einstellung eines Neigungswinkels des Auflageabschnitts betätigt wird (51).
EP13194611.3A 2013-02-15 2013-11-27 Winkeleinstellbares Scharnier und Sofa Active EP2767188B1 (de)

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JP5555341B1 (ja) * 2013-02-15 2014-07-23 直伸 山下 角度調整金具及び座椅子
JP5611416B1 (ja) * 2013-05-20 2014-10-22 山下　直伸 角度調整金具
CN104172768B (zh) * 2014-08-28 2017-01-11 浙江凯帝家具有限公司 一种靠背角度可调节软椅
KR101538031B1 (ko) * 2014-12-31 2015-07-22 허남요 등받이 완충구조를 가지는 의자
JP6105102B2 (ja) * 2015-02-23 2017-03-29 向陽技研株式会社 角度調整金具及びソファー
CN105902029B (zh) * 2015-02-23 2018-11-02 东莞向阳金属制品有限公司 角度调整配件以及沙发
CN106037320A (zh) * 2016-06-24 2016-10-26 周海梅 一种可快速锁定的连排座椅装置
CN106108446A (zh) * 2016-06-24 2016-11-16 周海梅 一种可实现快速锁定的新型连排座椅
CN105996523A (zh) * 2016-06-24 2016-10-12 周海梅 一种可独立调整坐姿的连排座椅装置
DE102017110246A1 (de) * 2017-05-11 2018-11-15 Hettich Franke Gmbh & Co. Kg Schwenkbeschlag und Möbel
DE102017110253A1 (de) * 2017-05-11 2018-11-15 Hettich Franke Gmbh & Co. Kg Schwenkbeschlag und Möbel
CN111657704A (zh) * 2019-03-05 2020-09-15 及桦实业股份有限公司 座椅扶手支撑垫角度调整结构
JP6981697B1 (ja) * 2020-10-30 2021-12-17 向陽技研株式会社 角度調整金具およびこれを用いた座椅子、ソファ

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JP3766669B2 (ja) * 2003-08-29 2006-04-12 直伸 山下 角度調整金具
JP4519555B2 (ja) * 2004-07-28 2010-08-04 株式会社ヒカリ 関節装置
JP4296223B1 (ja) * 2008-05-23 2009-07-15 直伸 山下 角度調整金具
JP4418519B1 (ja) * 2009-05-22 2010-02-17 直伸 山下 角度調整金具
JP5584087B2 (ja) * 2010-10-19 2014-09-03 向陽技研株式会社 座イス用角度調整金具及び座イス用連結構造
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