EP3058850A1 - Outil de réglage angulaire et canapé - Google Patents

Outil de réglage angulaire et canapé Download PDF

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Publication number
EP3058850A1
EP3058850A1 EP16156840.7A EP16156840A EP3058850A1 EP 3058850 A1 EP3058850 A1 EP 3058850A1 EP 16156840 A EP16156840 A EP 16156840A EP 3058850 A1 EP3058850 A1 EP 3058850A1
Authority
EP
European Patent Office
Prior art keywords
wedge
gear
angular adjustment
adjustment tool
floating
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.)
Granted
Application number
EP16156840.7A
Other languages
German (de)
English (en)
Other versions
EP3058850B1 (fr
Inventor
Yoichi Nagatani
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 Germany GmbH
Koyo Giken KK
Original Assignee
Koyo Germany GmbH
Koyo Giken KK
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 JP2016013464A external-priority patent/JP6105102B2/ja
Application filed by Koyo Germany GmbH, Koyo Giken KK filed Critical Koyo Germany GmbH
Priority to PL16156840T priority Critical patent/PL3058850T3/pl
Publication of EP3058850A1 publication Critical patent/EP3058850A1/fr
Application granted granted Critical
Publication of EP3058850B1 publication Critical patent/EP3058850B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/12—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds changeable to beds by tilting or extending the arm-rests
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds
    • 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
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • 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
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/402—Support for the head or the back for the back adjustable in height
    • 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

Definitions

  • the present invention relates to an angular adjustment tool and sofa.
  • Patent reference 1 Japanese patent number 5514753
  • the floating wedge member is pressed all the time on a gear member by means of the bias of the spring back force of a spring back leaf spring member. For this reason, when the second member is swung in one direction with respect to the first member, and the floating wedge member rides over the gear means, the toothed surface of the floating wedge means crashes into the gear means, generating a metallic noise.
  • the sofa represented in figure 10 of this patent application has the headrest means 48 attached to the upper edge of the back means 46 by means of an angular adjustment tool 3.
  • the present invention has as its object the provision of an angular adjustment tool reducing the metallic noise generated associated with the swinging motion.
  • another object of the invention is the provision of a sofa performing angular adjustment of the headrest means without generating a grating noise on the ears at the ears of the seated persons thereon.
  • an angular adjustment tool of the present invention equipped with a first member, and a second member having a gear means axially supported in a swingable manner, and a wedge member having a toothed surface which can mesh with said gear means, and said second member can be swung in one direction (A) relative to and in respect of said first member, and is restricted from relative swinging motion to the other direction (B),
  • a non-contacted free-holding means is provided holding said toothed surface of said floating wedge member and said gear member freely in non-contact on the occasion of the swinging motion to said first direction (A).
  • said non-contacted free-holding means provides a wedge operating member revolved through a small angular range by means of the friction force accompanying the revolution with said second member, and by means of the swinging motion to said one direction (A) of said second member with respect to said first member, said wedge operating member causes said toothed surface of said floating wedge member to be non-contacted with said gear means in a freely non-contacted state, and in addition, a configuration by means of the swinging in said small angular degree to said other direction (B), said floating wedge member is pressed in between the wedge surface formed in said first member side, and said gear means, in a configuration with the meshed state of said toothed surface of said floating wedge member with said gear means, wherein the relative swinging of said second member to said other direction (B) in respect of said first member is constrained by means of the wedge action of said floating wedge member.
  • said non-contact free-holding means may provide a wedge operating member revolved in a preferably small angular range by means of the friction forces on being revolved with said second member, and by swinging said second member in said first direction (A) in respect of said first member, said wedge operating member holds said toothed surface of said floating wedge member in a concontacted free state freely non-contacted with respect to said gear means, in addition, a configuration wherein by means of said swinging in a small angular range to said other direction (B), said floating wedge member may be pushed between the wedge surface formed on said first member side, and said gear means, in the meshed state of said toothed surface of said floating wedge member and said gear means, and by means of the wedge effect of said floating wedge member, the relative swinging of said second member to said other direction (B) with respect to said first member may be constrained.
  • said wedge operating member may have a sliding means generating said frictional force accompanying the sliding revolution thereof on said second member.
  • the sofa of the present invention wherein the headrest means is attached via said angular adjustment tool on the upper edge of the back means, and enabling the gradual swinging of said headrest means to the upright direction (A) and constraining the swinging motion to the inclined direction (B),
  • said angular adjustment tool is equipped with a gear means, and a small gear member for use in regulation having a toothed surface enabling meshing with said gear means, and on the occasion that said headrest means is swung in said upright direction (A), not only are said gear means of said angular adjustment tool and said toothed surface are caused to be in a non-contacted free state, in addition, said gear means of said angular adjustment tool and said toothed surface are caused to be in a meshed state by means of the pullback action to a specific small angle in the inclined direction (B), in a configuration so as to hold the posture of said headrest.
  • the prevention of the generation of noise which is harsh on the ears at the ears of the person seated on the seating means is enabled, and a quiet swinging motion of the headrest means is enabled.
  • the angular adjustment tool 3 of the this embodiment disposes of the first member 1, and second member 2 having the gear means 4, and the floating wedge member 6 having a toothed surface 7 which enables meshing with the gear means 4. Then the first member 1 and the second member 2 are assembled in a manner enabling swinging about the center of an axis L by means of pivotally connected axis 24.
  • the angular adjustment tool 3 of the present invention can be adapted to sofas, chairs, (inclinable style) beds and the like. More specifically, it may be adapted to the freely swingable pivot means of erectable/inclinable headrest means, back means, inclinable bed means and the like. As far as previously or later in this text is referred to a sofa, this means at once that it can be also any of the other mentioned devices such as a chair, a bed etc. or even the freely swingable pivot means of ... as mentioned before.
  • the wedge member 6 has the surface 7 on one side surface, and has the contact surface 9 on the other side surface. Said contact surface 9 contacts preferably with a wedge surface formed preferably on the side of the first member 1. As illustrated in figure 1 , the floating wedge member 6 not only has contact surface 9 contacting e.g. with the wedge surface 8, in the meshed state are also meshing the toothed surface 7 and the gear means 4, whereby the second member 2 is prevented from having a swinging motion in the direction of arrow B in the figure in respect of the first member 1.
  • the first member 1 has preferably the attachment means 18 integrated, e.g. with a pair of mutually facing wall means 17 and 17. Not only is the pivotally connected axis 24 inserted through the mutually facing wall means 17 and 17, also preferably a wedge-shaped window means 5 is formed therein.
  • the wedge-shaped window means 5 has preferably an arch shaped wedge surface 8, and preferably a refuge space 15 in order to store the separated state of the floating wedge member 6 from the gear means 4.
  • the wedge-shaped window means 5 is formed so that the wedge surface 8 gradually approaches the gear means 4.
  • a wedge shaped space which shrinks in the clockwise direction is formed in the side surface view of Figure 1 by means of the wedge surface 8 and the outer peripheral toothed surface of the gear means 4, and the floating wedge member 6 is disposed in a freely displaceable manner in this wedge shaped space.
  • the second member 2 integrates the preferably two panels of the gear panel means 45 and 45 with the attachment means 19. Then the mutually parallel gear means 4 and 4 are inserted between the two opposing walls of the first member 1. They are formed so as to [revolve], for example, in an angular range of 100° ⁇ 120° around the center angle on the arc shaped outer peripheral edge means of the gear panel means 45 and 45. Then, said toothed surface 7 and the gear means 4 are not only engaged at two locations in the left-right horizontal direction, all of teeth of the toothed surface 7 mesh simultaneously with the gear means 4. The protruding means 14 and 14 are disposed at the initial terminal means and the final terminal means of the gear means 4.
  • the pivotally connected axis 24 is inserted to the gear panel means 45 and 45.
  • the toothed surface 7 of the floating wedge member 6 may have 13 ⁇ 20 teeth formed therein.
  • the gear means 4 may have 40 or more teeth, more preferably 45 ⁇ 65 teeth formed therein. In this manner the angular adjustment means has 40 stages or more stages enabled therein.
  • the swinging motion of the second member 2 in the (relative) direction of the arrow A in the figure is enabled with respect to the first member 1.
  • the floating wedge member 6 is provided with the non-contact free-holding means 10 holding it free in non-contact with the gear means 4.
  • the non-contact free-holding means 10 provides the wedge operating member 11 (operating plate) revolved in a small angular range about the axial center L, by means of the frictional force accompanied by the revolving of the second member 2.
  • the wedge operating member 11 has a hole means 21 through which the pivotally connected axis 24 is inserted.
  • the first member 1/the second member 2 are pivotally integrated via the pivotally connected axis 24.
  • the aperture window means 20 holding the floating wedge member 6 in a freely displaceable manner is formed on the wedge operating member 11.
  • the aperture window means 20 has an arched surface 22 on the outer side as seen from the center point (axial center L) of the hole means 21, and has preferably a tapered surface 23 forming an acute angle ⁇ , see e.g. fig. 7 , with one terminal edge of the arched surface 22.
  • the recessed means 25 is preferably formed on the outer side surface of the wedge operating member 11.
  • a spring means preferably a leaf spring member 16 is provided between the first member 1 and the wedge operating member 11.
  • a leaf spring means or member it can always be replaced by spring means.
  • the leaf spring member 16 has a protrusion means 13 in the long direction intermediate part thereof, and both terminal means of the long direction are supported by the first member 1.
  • the leaf spring member 16 is disposed so as to have the protrusion means 13 opposite to the recessed means 25 of the wedge operating member 11.
  • the protrusion means 13 slides continuously in the recessed means 25 so as to enable the wedge operating member 11 to be revolved, dragged by means of the friction forces on the second member 2.
  • wedge operating member 11 has the rubbing contact means 12 generating a drag-around friction force on rubbing the second member 2.
  • the wedge operating member 11 does preferably consist of two side wall means 27 and 27 in the said side wall means 27 and 27 are further preferably connected by means of the connection means 28 to a pair of side wall means 27 and 27.
  • the rubbing contact means 12 forms e.g. a protruding shape (swelled-out shape) on the outer side of one or both the side wall means 27 and 27 of the wedge operating member 11.
  • the rubbing contact means 12 forms preferably a tongue shape 29 cut-out e.g.
  • this tongue shape 29 is preferably formed so as to be curved upwards in a leaf spring shape ( Figure 9 ).
  • a preferably parallel pair of slits may be formed, and the inner side of the slits may have a triangular mound shape protuberance thereon (not illustrated in the figures).
  • the wave shaped outer annular means 32 may provide intermittent (plural) arc shaped slits remaindered in of the peripheral edge of the holding means 21 may be provided on the wedge shaped operating member 11. As illustrated in figures 12 and 13 , the wave shaped outer annular means 32 may be cut out by means of the (plural) arched shaped slits 35 intermittently remaindering the connection remaining means 30 of the side wall means 27, and plural protuberances 33 may be formed by means e.g. of the bay curvature of the arc shaped slits to the inner side.
  • the wave shaped inner annular means 31 may be cut out by means of the intermittent (plural) arched slit 39 remaindered in the connection means 38 of the protuberance means 33, and plural rubbing contact means 12 are formed in outwardly projecting shapes swelled-up in projections on the inner side of the slits 39.
  • the wave shaped inner annular means 31 and the wave shaped outer annular means 32 may be elastically deformed.
  • the elastic deformation of the rubbing contact means 12 generate an appropriate drag-around friction force by being elastically pressure contacted with the inner surface of the gear panel means 45 and 45 of the second member 2.
  • the wedge operating member 11 is revolved in tandem with the second member 2 by means of this drag-around friction force.
  • the floating wedge member 6 is held by means of the tapered surface 23 of the wedge operating member 11 and the induction gradient surface 26 of the wedge-shaped window means 5 and the wedge surface 8 and held in a preferably substantially fan-shaped space. As long as there is the generation of the drag-around friction force of the second member 2 on the wedge operating member 11, the floating wedge member 6 is pressed from the upper side by the wedge operating member 11, and does not mesh with the gear means 4. In other words, while operating the folding operation M 0 , the floating wedge member 6 is held without causing a metallic noise, and the toothed surface 7 of the floating wedge member 6 and the gear means 4 are held in the non-contacted free state.
  • the floating wedge member 6 is progressively pushed into the narrowing space between the wedge surface 8 and the gear means 4, constraining the swinging motion of the second member 2 to the direction B by means of the wedge effect, sustaining the inclined angle of the first member 1 and the second member 2 (holding in a fixed state).
  • the meshed state represented in figure 3 by the meshing of the toothed surface 7 of the floating wedge member 6 with the gear means 4, the secure holding and fixation of the inclined angle of the first member 1 on the second member 2 without slippage thereof is enabled.
  • the floating wedge member 6 In the retrieved state, the floating wedge member 6 is stored in the refuge space 15, in addition to, the revolution of the wedge operating member 11 being ligated by means of the protrusion means 13 of the leaf spring member 16. Therefore, even if the second member 2 is swiveled to the direction B, the wedge operating member 11 does not revolve in tandem because of the ligation of the spring member 16. As a result, the mesh released status of the gear means 4 and the toothed surface 7 is maintained, and the second member 2 can be swiveled in the direction B with respect to the first member 1.
  • the angular adjustment tool as described above, and as illustrated in figure 10 attaches the headrest means 48 by means of the angular adjustment tool 3 on the upper edge of the back means 46, enabling the progressive swinging of the headrest means 48 to the upright direction A and regulating the swinging thereof to the inclined direction B in a manner suited to adaptation to a sofa.
  • the angular adjustment tool 3 is equipped with the gear means 34, and the small gear member 36 (floating wedge member 6) for use in regulation having the toothed surface 37 enabling meshing with the gear means 34.
  • the present invention can be subjected to design modifications, for example, by dispensing with the wedge-shaped window means 5, and for example, instead by using a panel shaped member and the like pressing the contact surface 9 of the floating wedge member 6.
  • the wedge operating member 11 need not have the aperture window means 20, and may have a shape having a pair of contacting surfaces above and below pressing the upper terminal surface/lower terminal surface of the floating wedge member 6, and may employ a panel shaped member and the like, such that the design or the dimensional ratios may be freely modified.
  • the angular adjustment tool of the present invention provides the first member 1, and the second member 2 having the gear means 4, and the floating wedge member 6 having the swingable and pivotally attached toothed surface 7 enabling meshing with the gear means 4, enabling the relative swinging motion of the second member 2 to a first direction A with respect to the first member 1 and in respect of the angular adjustment tool constraining the relative swinging motion to the other direction B. Then there is the provision of the non-contact free-holding means 10 holding the toothed surface 7 of the floating wedge member 6 and the gear means 4 free of each other in non-contact on the occasion of the swinging motion to one direction A.
  • the meshing of the toothed surface 7 of the floating wedge member 6 with the gear means 4 enables the stationary state of the first member 1/the second member 2 at the desired angle securely without slippage.
  • the toothed surface 7 of the floating wedge member 6 and the gear means 4 may be released to the non-contacted state and held in a non-contacted free state, enabling a quiet swinging motion.
  • the prevention of the generation of the so-called metallic noise generated by the collision of the floating wedge member 6 with the gear means 4 is enabled.
  • the non-contact free-holding means 10 provides the wedge operating member 11 which is revolved through a small angular range by means of the drag-around friction force with the second member 2, and by means of the swinging motion of the first member 1 on the second member 2 to the direction A the wedge operating member 11 frees the toothed surface 7 of the floating wedge member 6 from the gear means 4 to enable a free non-contacted state.
  • the wedge operating member 11 has the rubbing contact means 12 generating a drag-around friction force on rubbing with the second member 2, the wedge operating member 11 revolves securely in tandem with the second member 2, enabling the switchover of the toothed surface 7 of the floating wedge member 6 and the gear means 4 from the non-contacted free state to the meshed state. The swinging of the first member 1 and the second member 2 with an appropriate friction resistance force is enabled.
  • the sofa of the present invention attaches the headrest 48 by means of the angular adjustment tool 3 to the upper edge of the back means 46, and in a sofa enabling the swinging of the headrest means 48 to the upright direction A and constraining swinging to direction B.
  • the angular adjustment tool 3 is equipped with the gear means 34, and the small gear member 36 for use in regulation having the toothed surface 37 enabling meshing with the gear means 34, and on the occasion of the swinging motion of the headrest means 48 to the upright direction A, the gear means 34 of the angular adjustment tool 3 and the toothed surface 37 are held in a non-contacted free state.
  • a meshing state of the gear means 34 of the angular adjustment tool 3 with the toothed surface 37 is enabled, by means of a specific small angular returning operation of the headrest to the inclined direction B, and the configuration enables the holding of the posture of the headrest means 48. Therefore, the prevention of the generation of a harsh noise on the ears noise at the ears on the occasion of the swinging motion of the headrest means 48 to the upright direction A is enabled, and the quiet swinging motion of the headrest means 48 is enabled.
  • the second embodiment of the angular adjustment tool 3 of the present invention is equipped with the first member 50, and the second member 60, and the swinging wedge member 70, and the non-contact free-holding means 180, and the first and second covers 90 and 92, and can be swung as an integrated unit centered on the axial center L.
  • the first member 1 described above holds the attachment means 51 and one terminal of the above described attachment means 51 held sandwiched, in addition to providing a pair of opposite facing wall means 52 and 53 in parallel with each other. Then, the opposite facing wall means 52 and 53 are tightly fixed to said attachment means 51 by the rivets 54 and 54.
  • the method of fixing is not limited to the earlier described rivet fixation, and for example, may be fixed using bolts and nuts or by welding.
  • either one of the opposite facing wall means 52 and 53 or the attachment means 51 may be machined to have a protruding snap on protrusion means, and the other one may be provided with a fitting on hole for the integration thereof.
  • the opposite facing wall means 52 and 53 described above are formed in mirror symmetry with each other, and not only is the axial hole 56 provided in one, there is the position regulating pin 57 provided protruding on the inner facing surface of the other one ( Figure 17 ). Then, the opposite facing wall means 52 and 53 provide the wedge shaped window means 58 between the axial hole 56 described above and the position regulating pin 57. Now, the position regulating pin 57 described above may be formed by machining to protrude, or may be formed by the attachment of a separate metallic pin.
  • the position regulating pin 57 described above is disposed so as to be positioned respectively on the same axial center of the pair of opposite facing wall means 52 and 53. Then, the position regulating pin 57 described above prevents the rattling of the wedge operating member 81 described above by means of guidance of the leaf spring member 83 of the wedge operating member 81 which is described later. Moreover, the position regulation of the wedge operating member 81 is enabled by means of locking with the above described leaf spring member 83.
  • the wedge-shaped window means 58 described above has an arc shaped wedge surface 58a. Then, the wedge surface 58a described above is formed so as to gradually approach to the gear means 66 of the later described second member 60 ( Figure 25 ). Moreover, the wedge-shaped window means 58 described above has a retraction space 58b for the purposes of storing the separated state of the floating wedge member 70 from the gear means 66. In addition, the wedge-shaped window means 58 described above forms the induction inclined surface 58c in continuity with the retrieval space 58b described above.
  • a shrinking wedge-shaped space is formed along the clockwise direction by means of an outer peripheral toothed surface of the gear means 66 and the wedge surface 58a.
  • the later described floating wedge member 70 can be freely displaced and assembled into the wedge-shaped space described above.
  • the second member 60 described above provides the attachment means 61, and a pair of gear plate means 62 and 63 which are parallel to and opposite facing each other sandwiched by one terminal of the above described attachment means 61. Then, the gear plate means 62 and 63 are fixed and secured to the attachment means 61 described above by the rivets 64 and 64.
  • the method of fixation is not limited to the fixation method described above, for example, and may be fixed using bolts and nuts or by welding.
  • a fitting-on protrusion is provided protruding out on either one of the attachment means 61 or the gear plate means 62 and 63, and the hole for fitting on may be provided on the other one for the integration thereof.
  • the gear plate means 62 and 63 described above are formed in mirror symmetry with each other, and each has the axial holes 65 and 65 for the purposes of the insertion of the pivot axis 94 there through.
  • the gear plate means 62 and 63 described above form the gear means 66 in the range of 100° to 120° of the center angle in an arc shaped outer peripheral edge means on one terminal side thereof.
  • the protrusion means 67 for use in pressing downwards is provided on the initial edge means of the gear means 66 described above.
  • the protrusion means 68 for use in pressing upwards is provided on the end terminal means of the gear means 66 described above. Then, the two gear plate means 62 and 63 of the second member 60 are inserted between the opposite facing wall means 52 and 53 of the first member 50 described above, and are connected in a swingable manner via the later described pivot axis 94.
  • each of the first and second members 50 and 60 are formed from three constituent part plates, but is not necessarily limited thereto.
  • the first and second members 50 and 60 described above may overlay mirror symmetry formed two constituent parts, and integrate them using welding, riveting, fixing with bolts and nuts, or by using fit-on protrusions thereon.
  • the floating wedge member 70 described above, as illustrated in figure 18 has the contact surface 71 on one surface side thereof, and has the toothed surface 72 on the other surface side thereof.
  • the contact surface 71 described above, as illustrated in figure 28 contacts with the wedge surface 58a formed on the first member 50 side. Then, when the floating wedge member 70 contacts that contact surface 71 with the wedge surface 58a, in addition to, when the toothed surface 72 and the gear means 66 mesh, the swinging motion of the second member 60 with respect to the first member 50 in the arrow direction B in the figure is inhibited by means of the wedge effect.
  • toothed surface 72 of the floating wedge member 70 there are a plurality, preferably five or six teeth formed in the toothed surface 72 of the floating wedge member 70.
  • This toothed surface 72 and the gear means 66 mesh at two locations in the left and right horizontal direction, in addition to, preferably simultaneously meshing all of the teeth of the toothed surface 72 the gear means 66.
  • 13 to 20 teeth are formed in the toothed surface 72 of the floating wedge member 70, and more than 40 teeth, more preferably 45 to 65 teeth, may be formed in the gear means 66.
  • the number of stages of angular adjustment is enabled with 40 or more stages.
  • the non-contact free-holding means 80 described above, as illustrated in figures 15 and 16 , provides the wedge operating member (operational plate) 81 revolved in a small angular range around the axial center L by means of the drag-around friction force with the second member 60.
  • the wedge operating member 81 described above, as illustrated in figures 19 and 20 is beaten out by press machining of one sheet of metallic plate, and is formed by folding over. Then, the wedge operating member 81 has the aperture window means 82 provided in the center thereof, and a pair of leaf spring member 83 and 83 provided on one side of said aperture window means 82, and the axial hole 84 provided on the other side of said aperture window means 82. Furthermore, said wedge operating member 81 is supported in a swingable manner in the inserted state between the gear plate means 62 and 63, together with the second member 60.
  • the aperture window means 82 described above is for the purposes of holding the floating wedge member 70 in a freely displaceable manner, and has an arched surface 82a in the outer side thereof as seen from the center point (the center L).
  • the arc surface 82a described above has a tapered surface 82b formed at an acute angle ⁇ in one terminal edge thereof.
  • the arc surface 82 a described above provides a stepped means 82c on the other terminal edge thereof.
  • the leaf spring member 83 described above provides a vertical slit along the other side edge means of the wedge operating member 81 described above, and forms cut-out parts at substantially right angles which are bent upwards there from. As a result, both terminal means of the long direction of leaf spring members 83 are connected to the wedge operating member 81. Furthermore, the leaf spring members 83 described above have the protrusion means 83a protruding to the exterior from the intermediate part of the long direction thereof. Then, the leaf spring members 83 described above form a recessed means 83b for the purposes of ligature to the basal means of one side of the protrusion means 83a described above.
  • the wedge operating member 81 is position constrained so as not to be revolved by means of the drag-around friction forces of the second member 60.
  • the leaf spring members 83 described above form the recessed means 83c for use in guidance on the other direction side to the protrusion means 83a described above.
  • the position regulating pin 57 described above may be guided into the recessed means 83c for use in guidance described above, and does not need to be normally in sliding contact.
  • the leaf spring members 83 described above need not necessarily be provided as a pair of springs, and may be just one on one side.
  • the axis hole 84 described above is for the purposes of the insertion there through of the pivot axis 94 which is described later.
  • a wave shaped annular means 85 is provided in the peripheral edge means of said axial hole 84 as the sliding contact means.
  • the wave shaped annular means 85 has multiple elevated means 85a. Said elevated means 85a provide non-continuous (multiple) arc shaped slits 85c leaving the connection remaindered means 85b in the peripheral edge means of the axial hole 84, in addition to the inner side parts of said arc shaped slits 85c being formed in a bay curve in the plate thickness direction.
  • the wedge operating member 81 described above may provide an annular sliding contact means 86 and the inner peripheral edge means of said wave shaped annular means 85.
  • the wave shaped annular means 85 described above is reinforced, which not only improves the longevity thereof, there is the benefit that the sliding action is smoother and more stable.
  • the wedge operating member 81 is not limited to the earlier described embodiments, and by providing perforation holes and slits in one sheet of a metal plate, the aperture window means 82, and the axial hole 84 on the other side of said aperture window means 82, and the leaf spring member 83 and the other direction side of said aperture window means 82 may be formed by cut-out machining.
  • the first and second covers 90 and 92 are for the purposes of preventing the fallout of the above described floating wedge member 70. Then, the first and second covers 90 and 92 not only have the facial shapes covering the outer peripheral surface of the opposed wall means 52 and 53 of said first member 50, they also provide each of the axial holes 91 and 93.
  • the wedge operating member 81 is inserted and positioned between the integrated year plate means 62 and 63 of the second member 60. Then, those gear plate means 62 and 63 and the wedge operating member 81 are inserted and positioned between the opposing wall means 52 and 53 of the first member 50. Furthermore, after positioning the first cover 90 in the opposing wall means 52, the pivot axis 94 is inserted and locked into the axel holes 91, 56, 65, 84, 65, 56. Next, the floating wedge member 70 is inserted from the wedge-shaped window means 58 of the opposing wall means 53 to the aperture window means 82 and to the wedge-shaped window means 58 of the opposite surface wall means 52.
  • the floating wedge member 70 is displaced from the wedge surface 58a in the lower part of the wedge-shaped window means 58.
  • a minute gap is generated between the toothed surface 72 and the gear means 66, and the floating wedge member 70 adopts the non-contacted free state ( figure 29 ).
  • the floating wedge member 70 is supported by means of the three points of the induction gradient surface 58c of the wedge-shaped window means 58, the tapered surface 82b of the wedge operating member 81, and the stepped means 82c.
  • the floating wedge member 70 is stored in the retraction space 58, in addition to the recessed means 83b for use in locking of the leaf spring member 83 being locked in to the position regulating pin 57. For this reason, even if the second member 60 is swung to the direction B as a result of the spring force of the leaf spring member 83 locking the position regulating pin 57, the unmeshed state of the gear means 66 with the toothed surface 72 is held. As a result, the wedge operating member 81 does not revolve in unison, and the free swinging of the second member 60 in the direction B with respect to the first member 50 is enabled.
  • the wedge operating member 81 is revolved clockwise in figure 32 around the center of the axial center L.
  • the locked state of the recessed means 83b for use in locking of the leaf spring member 83 and the position regulating pin 57 is released, and the position regulating pin 57 is displaced to the recessed means 83b for use in guidance of the leaf spring member 83.
  • the friction forces between the wedge operating member 81 and the second member 60 they revolve in unison.
  • the floating wedge member 70 is displaced to the upper part of the wedge shaped window means 58 (wedge-shaped space), and the toothed surface 72 of the floating wedge member 70 and the gear means 66 adopt the meshed state.
  • the position of the straight line state (180°) of the second member 60 with respect to the first member 50 is the final deployed position, but it is not necessarily limited thereto.
  • the second means 66 may have a final deployed position positioning it forming a 120° angle with respect to the first member 50.
  • the wedge operating member 81 begins to revolve in unison with the second member 60 as a result of the drag-around friction forces based on the spring force of the wave shaped annular means 85.
  • the floating wedge member 70 is displaced in the downward direction in the wedge-shaped window means 58.
  • the upper terminal surface of the floating wedge member 70 is pressed to the tapered surface 82b of the wedge operating member 81.
  • the floating wedge member 70 whilst in sliding contact with the induction gradient surface 58c of the wedge-shaped window means 58, is slightly displaced in the separated direction from the gear means 66.
  • the floating wedge member 70 is constrained from swinging to the direction B of the second member 60 by means of the wedge effect, and the inclined angle of the first member 50 with the second member 60 is sustained (held fixed), and returns to the state illustrated in figure 28 .
  • the wedge shape member in one or all of the embodiments described is preferably not subjected to a spring force forcing the wedge member into the meshing condition with the gear means 4.
  • the wedge member is subjected to a friction force from moving not freely in a different position.
  • the friction force may be created on one or both of the end-faces of the wedge member 6. In the second embodiment described, this can be reached e.g. by a friction force between one or both of said end faces with one or both other means 90 and 92. Even not described in detail, one or both of such cover means may also be present in the first embodiment.
  • the drive adjustment tool of the present invention is not limited to the earlier described embodiments, and may be used in furniture other than sofas.
EP16156840.7A 2015-02-23 2016-02-23 Outil de réglage angulaire et canapé Active EP3058850B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16156840T PL3058850T3 (pl) 2015-02-23 2016-02-23 Narzędzie do regulacji kąta i sofa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015032729 2015-02-23
JP2016013464A JP6105102B2 (ja) 2015-02-23 2016-01-27 角度調整金具及びソファー

Publications (2)

Publication Number Publication Date
EP3058850A1 true EP3058850A1 (fr) 2016-08-24
EP3058850B1 EP3058850B1 (fr) 2022-03-23

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EP16156840.7A Active EP3058850B1 (fr) 2015-02-23 2016-02-23 Outil de réglage angulaire et canapé

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EP (1) EP3058850B1 (fr)
CN (1) CN105902029B (fr)
ES (1) ES2909800T3 (fr)
PL (1) PL3058850T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3400836A1 (fr) * 2017-05-11 2018-11-14 Koyo Germany GmbH Outil de réglage d'angle et mobilier l'employant
US11272787B2 (en) * 2017-05-11 2022-03-15 Hettich Franke Gmbh & Co. Kg Pivot fitting and piece of furniture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010088682A (ja) * 2008-10-08 2010-04-22 Hikari:Kk 角度調節金具
EP2253246A1 (fr) * 2009-05-22 2010-11-24 Koyo Giken Kabushiki Kaisha Charnière à réglage d'angle
JP5514753B2 (ja) 2011-02-16 2014-06-04 直伸 山下 角度調整金具
EP2805642A1 (fr) * 2013-05-20 2014-11-26 Koyo Giken Kabushiki Kaisha Charnière à réglage d'angle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5499467B2 (ja) * 2008-12-11 2014-05-21 トヨタ紡織株式会社 車両用シートの連結装置
JP5555341B1 (ja) * 2013-02-15 2014-07-23 直伸 山下 角度調整金具及び座椅子
JP5498608B1 (ja) * 2013-05-20 2014-05-21 直伸 山下 ソファー
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010088682A (ja) * 2008-10-08 2010-04-22 Hikari:Kk 角度調節金具
EP2253246A1 (fr) * 2009-05-22 2010-11-24 Koyo Giken Kabushiki Kaisha Charnière à réglage d'angle
JP5514753B2 (ja) 2011-02-16 2014-06-04 直伸 山下 角度調整金具
EP2805642A1 (fr) * 2013-05-20 2014-11-26 Koyo Giken Kabushiki Kaisha Charnière à réglage d'angle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3400836A1 (fr) * 2017-05-11 2018-11-14 Koyo Germany GmbH Outil de réglage d'angle et mobilier l'employant
US11272787B2 (en) * 2017-05-11 2022-03-15 Hettich Franke Gmbh & Co. Kg Pivot fitting and piece of furniture

Also Published As

Publication number Publication date
CN105902029A (zh) 2016-08-31
EP3058850B1 (fr) 2022-03-23
PL3058850T3 (pl) 2022-06-27
CN105902029B (zh) 2018-11-02
ES2909800T3 (es) 2022-05-10

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