WO2016017295A1 - 車両用シートのリンク構造 - Google Patents
車両用シートのリンク構造 Download PDFInfo
- Publication number
- WO2016017295A1 WO2016017295A1 PCT/JP2015/066876 JP2015066876W WO2016017295A1 WO 2016017295 A1 WO2016017295 A1 WO 2016017295A1 JP 2015066876 W JP2015066876 W JP 2015066876W WO 2016017295 A1 WO2016017295 A1 WO 2016017295A1
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- WO
- WIPO (PCT)
- Prior art keywords
- link member
- link
- cylindrical
- movable
- end portion
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
- B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
- B60N2/161—Rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
- B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
- B60N2/161—Rods
- B60N2/1615—Parallelogram-like structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
Definitions
- the present invention relates to a seat structure having a link portion used for, for example, a seat cushion lifting mechanism.
- JP 2008-87554 A Conventionally, as a technology in such a field, there is JP 2008-87554 A.
- an upper rail that is slidable with respect to a lower rail fixed to a vehicle floor is attached to a slide rail.
- the upper rail and the lower arm of the seat cushion are connected by a link member, and a pair of link members are arranged on the front and rear of the upper rail to constitute a parallel link mechanism.
- the upper rail and the link member are pivotally connected.
- a rivet is adopted as the shaft portion.
- the upper rail and the link member are pivotally attached by rivets.
- the free end portion of the rivet is crushed against the wall surface of the upper rail to form a flat end portion, thereby preventing the link member from being detached.
- the rivet free end is crushed, it is necessary to adjust the degree of contact between the flat end and the upper rail wall surface so that the link member smoothly rotates around the rivet. Become. Therefore, if the flat end of the crushed rivet has a strong contact with the wall surface of the upper rail, the link member will be difficult to rotate, and if the contact is weak, the link member will be rattled. It was efficient.
- An object of the present invention is to provide a vehicle seat link structure that ensures smooth rotation without looseness of the link member based on simple pivot attachment of the link member.
- a fixed part and a movable part movable with respect to the fixed part are included, and the movable part is connected to the fixed part via a link member.
- the link member has a hole at the end, Either or both of the fixed part and the movable part are provided with a pivot part where the link member is pivotally attached at the hole,
- the pivot portion has a cylindrical portion, and has an outwardly expanded end portion that expands outward at the free end of the cylindrical portion,
- Such a cylindrical part is formed integrally in either or both of the fixed part and the movable part,
- the hole portion of the link member is supported by the cylindrical portion, and the end portion of the link member is between the outwardly widened end portion and one or both of the fixed portion and the movable portion. By being sandwiched between the two, the link member is rotatable about the cylindrical portion.
- the constricted portion of the outwardly expanded end portion makes a uniform circumferential contact with the hole portion of the link member, the contact area between the both becomes extremely small and uniform compared to the rivet.
- the link member can be connected to the fixed part and / or the movable part under stable pivoting, the link member can be smoothly rotated around the cylindrical part without rattling. .
- the fixed portion may be configured as a vehicle floor
- the movable portion may be configured as a seat cushion frame provided on a seat cushion of a vehicle seat.
- the fixed portion may be a seat cushion frame provided on a seat cushion of a vehicle seat
- the movable portion may be configured as an ottoman.
- a cylindrical protrusion is formed in advance by burring in either or both of the fixed portion and the movable portion, and the cylindrical protrusion is formed in the hole of the link member.
- a uniform outwardly widened end is formed simply by pressing the conical end of the punch, and the constricted portion is formed on the hole of the link member on an accurate and uniform circumference. Make contact. Therefore, it is not necessary to adjust the contact with the upper rail like a conventional rivet.
- the outwardly expanded end portion constitutes a first outwardly expanded end portion
- the pivot portion further includes a hole portion in the link member.
- a second outwardly expanded end portion formed to surround and expand outwardly, and the inner peripheral surface of the second outwardly expanded end portion is the first It is slidably in contact with the outer peripheral surface of the outwardly expanded end.
- the end of the link member is the second outwardly expanded end and the first outwardly expanded end. The contact area with the part increases. Therefore, rattling when the link member rotates around the cylindrical portion is reliably prevented.
- a curved section having a curved cross-section that is curved in a curved direction radially toward the link member around the hole of the link member at the free end of the cylindrical portion of the pivoting portion.
- An annular part is provided, and the annular terminal of the curved annular part makes slidable contact with the surface of the link member, the hole of the link member is supported by the cylindrical part, and the terminal of the link member When the part is sandwiched between the warped and circular part and either the fixed part or the movable part or both, the link member can rotate around the cylindrical part.
- a synthetic resin bush is employed, and the synthetic resin bush is interposed between either or both of the fixed portion and the movable portion and the link member, It may be configured to intervene between the pivot part and the hole of the link member so that the link member can be smoothly rotated at the pivot part.
- the link member provided between the fixed portion and the movable portion in the seat has a very simple structure, and the link member is attached to either or both of the fixed portion and the movable portion. Can be smoothly rotated, and rattling of the link member can be reliably prevented.
- this 3rd Example it is a fragmentary sectional view which shows the principal part of the link structure formed with the punch. It is a partial determination front view which shows the principal part of the link structure which concerns on this 3rd Example. It is a partially broken perspective view of the link member used for the link structure which concerns on 4th Example of this invention. It is a fragmentary sectional view which shows using a punch for formation of the link structure which concerns on this 4th Example. In this 4th Example, it is a fragmentary sectional view which shows the principal part of the link structure formed with the punch. It is a partially broken perspective view which shows the principal part of the link structure which concerns on this 4th Example.
- an automobile seat 1 includes a seat cushion frame 3 that is used as a seat cushion that is movable in a front-rear direction along a slide rail 2 that is fixed to a vehicle floor FL, and a seat cushion frame 3. And a seat back frame 6 used for a seat back that can be moved forward and backward, a reclining mechanism R that allows the seat back to freely tilt, and a lifting mechanism (not shown) that allows the seat cushion to be raised and lowered.
- the slide rail 2 has a pair of lower rails C and C fixed to the vehicle floor FL, and a pair of upper rails D and D that are slidably connected to the pair of lower rails C and C, respectively.
- the pair of upper rails D and D are connected to the seat cushion frame 3 via the four link members 10. That is, the pair of front and rear right link members 10 and 10 are provided between the right cushion side frame 3 a and the right upper frame D of the seat cushion frame 3, and the pair of front and rear left link members 10 and 10 are the seat cushion frame 3. Is provided between the left cushion side frame 3a and the left upper frame D to form a so-called parallel link structure.
- the link pivoting portion E basically has the following structure. a)
- the upper rail D is formed with a projection having a cylindrical portion 11a-1 and an outwardly expanding end portion (a trumpet-shaped opening) 11a-2 that expands outward from the cylindrical portion. Yes.
- the cylindrical portion and the outwardly expanding portion are formed by pressing a cylindrical projection portion provided in advance on the upper rail D with a punch having a conical end portion.
- FIG. 2 to 6 show a first embodiment of the present invention.
- the link pivoting portion E between the upper rail D and the lower end portion 10eL of the link member will be described. That is, as a first embodiment of the link pivoting portion E, as shown in FIG. 2, a link pivoting portion denoted by reference numeral E-1 is formed.
- the link pivoting portion E-1 in the first embodiment is formed by the steps described below.
- the cylindrical protrusion 11 is formed so as to protrude toward the outer wall Da side of the upper rail by burring in the upper rail D made of, for example, a metal material. Accordingly, the cylindrical protrusion 11 includes a main body 11a and a hole 11aH that penetrates the main body 11a and the upper rail D.
- a punch 12 (see FIG. 5) having a conical end 12a is prepared.
- the link member is pressed toward the conical end portion 11 of the punch 12 with the link member attached to the upper rail D of the link member.
- the center 12 b of the punch conical end portion 12 a is coaxial with the center l of the cylindrical projection 11. Therefore, although not shown, the conical end portion 12a of the punch is all in uniform contact with the circular tip 11e of the cylindrical protrusion 11.
- a predetermined outwardly expanded end portion 11a-2 is formed, and a cylinder that is pivotally supported by the connecting hole 10a of the link member.
- Part 11a-1 is formed. That is, the outwardly expanded end portion 11a-2 is in a state of opening in the shape of a truncated cone outwardly about the central axis of the cylindrical portion 11a-1.
- the link pivoting portion E-1 of this embodiment is configured.
- the link pivoting portion E-1 as shown in FIG. 2, the lower end portion 10eL of the link member is sandwiched between and supported by the upper rail D and the outwardly expanded end portion 11a-2, The link member 10 can rotate in the front-rear direction indicated by the arrows around the cylindrical portion 11a-1.
- the contact area with the link member is large in order to crush the free end portion and form the flat portion, it is necessary to adjust the contact degree of the flat portion. Only a simple punch pressing operation, no such adjustment is required. That is, the outwardly widened end portion 11a-2 is formed simply by pressing with a punch, and the constricted portion 11c makes a uniform circumferential contact with the edge 10aE of the link member connecting hole 10a. Since the contact area is almost similar to the line contact, the contact area is extremely small compared to the crushing flat part of the rivet, and accurate and uniform contact is automatically made between the constricted portion 11c and the connecting hole 10a simply by pushing the punch 12. Complete. Therefore, since it does not require any troublesome contact adjustment to the upper rail such as a rivet, the operation can be performed easily and quickly.
- FIG. 7 to 9 show a second embodiment of the present invention. That is, as a second embodiment of the link pivoting portion E, a link pivoting portion denoted by reference numeral E-2 is formed.
- a link pivoting portion denoted by reference numeral E-2 is formed as a second embodiment of the link pivoting portion E.
- this second embodiment an example is shown in which a synthetic resin bush 13 (cylindrical sliding member) is adopted based on the first embodiment. Except for the bush 13, all components and structures of the second embodiment are the same as those of the first embodiment, and are all indicated by the same reference numerals as those of the first embodiment, and the description thereof will be simplified. Omitted for.
- a bush 13 having a cylindrical portion 13a and a flange portion 13b is prepared as shown in FIG.
- Reference numeral 13 h is a hole that penetrates the bush 13.
- the inner diameter of the hole portion 13h may be set to be slightly smaller than the outer diameter of the cylindrical portion 11a, and the elastic force of the bush 13 may be used to elastically press the outer peripheral surface of the protruding portion 11. Therefore, as shown in FIG. 8, the cylindrical portion 13a of the bush 13 is fixed to the protruding portion cylindrical portion 11a, so that the bush 13 itself does not move with respect to the protruding portion 11 and the upper rail D.
- the lower end portion 10eL of the link member is brought close to the protrusion portion 11 to which the bush 13 is attached, and the protrusion cylindrical portion 11a and the bush cylindrical portion 13a are inserted into the connecting hole 10a of the lower end portion 10eL.
- the bush 13 is interposed between the lower end portion 10eL of the link member, the upper rail outer surface Da, and the protruding portion cylindrical portion 13a.
- the conical end portion 12a of the punch 12 toward the cylindrical protrusion 11 an outwardly expanded end portion 11a-2 that expands outward is formed as shown in FIG.
- the cylindrical portion 13a of the bush 13 is also extended in an outwardly expanding shape that expands outward, and partially covers the outwardly expanding upper end portion 11a-2. Therefore, the bush 13 is interposed between the lower end portion 10eL of the link member and the outer surface Da of the upper rail, between the connection hole 10a of the link member and the cylindrical portion 11a-1 of the protrusion 11, and the truncated cone portion. Since it is also interposed between the constricted portion 11c of 11a-2 and the edge 10aE of the connecting hole 10a, the link member 10 can smoothly rotate about the cylindrical portion 11a-1.
- FIGS. 11 and 12 show a third embodiment of the present invention. That is, as a third embodiment of the link pivoting portion E, a link pivoting portion denoted by reference numeral E-3 is formed (see FIGS. 11 and 12).
- This third embodiment is based on the first embodiment, but adopts a cylindrical protrusion 11 ′ and a press working device PD equipped with a first punch 12′A and a second punch 12′B.
- the cylindrical protrusion 11 ′ is provided with a curved annular portion 11′a-2 having a curved cross section that curves in the direction of the link member 10.
- a cylindrical protrusion 11 ' is formed in advance in the upper rail D by burring.
- the length and diameter of the cylindrical protrusion 11 ' are set to a length and diameter sufficient to form the curved annular portion 11'a-2 described in detail later.
- the cylindrical protrusion 11 ′ includes a cylindrical main body 11 ′ a and a hole 11 ′ a H penetrating the cylindrical main body 11 ′ a and the upper rail D.
- a first punch 12'A having a conical end portion 12'Aa shown in FIG. 10 is prepared. Under the state where the link member 10 is attached to the upper rail D, as shown in FIG. 10, the conical end portion 12'Aa of the first punch 12'A is pressed toward the cylindrical projection portion 11 '. At this time, since the center (12′Ab) of the conical end portion 12′Aa of the first punch is coaxial with the central axis l of the cylindrical projection portion 11 ′, the conical end portion 12′Aa is cylindrical. All contact with the circular tip 11 ′ e of the protrusion 11 ′ uniformly. Subsequently, as shown in FIG.
- the first punch 12'A is pushed and pressed toward the upper rail D, so that the free end of the cylindrical projection 11 'is uniformly extended and expanded in a predetermined region. .
- a uniform and accurate predetermined outwardly expanded end portion 11'a-1 is formed.
- a press working apparatus PD equipped with a second punch 12'B is prepared.
- the second punch 12′B is arranged at the center, and the press working device PD is provided so as to surround the conical end portion 12′Ba of the second punch 12′B.
- the press die PD1 has a circular cavity PDa having a curved cross section.
- the outwardly widened end portion 11'a-1 extends further uniformly in a widened manner around the hole portion 11'aH based on the metal ductility and warps outward.
- the outwardly widened end portion 11′a-1 that warps contacts the curved surface of the circular cavity PDa of the press die PD, and warps outward uniformly along the curved surface.
- the annular tip end portion 11′a-2E of the outwardly expanding end portion 11′a-1 is uniformly directed toward the outer surface 10f of the link member 10.
- a warped annular portion 11′a-2 having a curved cross section that is curved in the direction of the link member 10 radially about the hole 11′aH is formed.
- a cylindrical portion 11′aA is formed between the base portion (constriction portion) 11′c of the curved annular portion 11′a-2 and the upper rail D, and as shown in FIGS.
- a pivot attachment E-3 is constructed.
- the timing of completion of the formation of the warped annular portion 11′a-2 is as follows when the base portion (constriction portion) 11′c contacts the edge 10aE of the connecting hole 10a of the link member 10. It is completed when the movement of the two punches 12'B stops.
- the annular terminal 11 ′ a-2 ⁇ / b> E of the curved annular portion 11 ′ a-2 is all in uniform contact with the outer surface 10 f of the link member 10. The degree of this contact is such that the outer surface 10f is slidable with respect to the annular terminal 11'a-2E, and the link member 10 is rotatable about the cylindrical portion 11'aA.
- the third embodiment is characterized by the following points. a) The lower end portion 10eL of the link member is sandwiched between the upper rail D and the base portion 11'c of the curved annular portion, and the link member 10 is centered on the cylindrical portion 11'aA in the front-rear direction of the arrow as shown in FIG. It can be turned. b) Further, since the annular terminal 11′a-2E of the curved annular portion 11′a-2 is slidably in contact with the outer surface 10f of the link member 10, the link member 10 is rotating. Further, it is stably supported by such an annular terminal 11′a-2E.
- the base portion (constriction portion) 11′c of the curved annular portion 11′a-2 is shown in FIGS. 10 and 11 as in the first embodiment.
- the link member 10 in order to make a uniform circumferential contact with the edge 10aE of the connecting hole 10a, the link member 10 can be stably pivotally attached to the upper rail D, and the link member 10 can connect the cylindrical portion 11′a-1 to the edge 10aE.
- the link member 10 can be prevented from being detached from the upper rail D while being able to rotate smoothly around the center.
- the link member 10 can rotate more stably around the cylindrical portion 11 ′ aA.
- the link member 10 may be smoothly rotated using a bush such as the synthetic resin bush 13 of the second embodiment shown in FIG. That is, although not shown, the bush mounting step as shown in FIGS. 8 to 9 in the second embodiment is performed before the step of forming the outwardly widened end portion 11′a-1 by the first punch 12′A.
- the following bushes are arranged in the process by the press working apparatus PD. That is, the bush is interposed between (i) the lower end portion 10eL of the link member and the outer surface Da of the upper rail as shown in FIGS. 10 and 11, and (ii) a cylindrical portion 11 ′ with the connection hole 10a of the link member 10.
- FIG. 13 to 17 show a fourth embodiment of the present invention. That is, as a fourth embodiment of the link pivoting portion E, a link pivoting portion denoted by reference numeral E-4 is formed.
- the fourth embodiment is based on the first embodiment, but the link member 10 to be used has a cylindrical protrusion 10P formed integrally in the connection hole 10a.
- the link pivoting portion E-4 shown in FIG. 16 is constructed by the same process as in the first embodiment.
- the structural member and structure which are common in this 4th Example and said 1st Example all are shown with the same code
- the link pivoting portion E-4 in the fourth embodiment will be described in detail.
- FIG. 13 shows an example in which the cylindrical protrusion 10P is formed on the lower end 10eL of the link member.
- the present invention is not limited to this, and the cylindrical protrusion 10P may be formed at the upper end of the link member 10, and the link pivoting portion E at the upper end of the link member 10 under the fourth embodiment described below. -4 may be configured.
- the length of the cylindrical protrusion 10P is appropriately shorter than the length of the cylindrical protrusion 11a so that the structure of the pivoting portion E-4 shown in FIGS. 15 and 16 is obtained.
- the inner diameter of the cylindrical protrusion 10P is slightly larger than the outer diameter of the cylindrical protrusion 10a so that the link member 10 can be rotated.
- the cylindrical protrusion 11 is inserted through the connecting hole 10a of the link member 10 and the cylindrical protrusion 10P formed in the link member 10. Accordingly, as shown in FIG. 14, the inner peripheral surface 10Pa of the cylindrical protrusion 10P in the link member 10 is slidably in contact with the outer peripheral surface 11b of the cylindrical protrusion 11 in the upper rail D. Accordingly, the lower end portion 10eL of the link member is rotatably connected to the cylindrical projection 11 and is in a state of slidably contacting the outer surface Da of the upper rail D.
- a punch 12 shown in FIG. 14 is prepared. Similar to the first embodiment, by pressing the conical end portion 12a of the punch 12 toward the cylindrical projection portion 11, the conical end portion 12a uniformly contacts the circular tip end 11e of the cylindrical projection portion 11. .
- the main body portion 11a of the cylindrical projection 11 has a metal ductility due to the conical end portion 12a of the punch.
- the cylindrical protrusion 10P is also extended outwardly under the metal ductility.
- the main body portion 11a of the cylindrical protrusion 11 has an outwardly widened end portion 11a-2 (hereinafter referred to as a first outwardly widened end portion 11a-2).
- an outwardly expanded end 10P ′ (hereinafter referred to as a second outwardly expanded end 10P ′) is also formed in the cylindrical protrusion 10P.
- the second outwardly expanded end portion 10P ′ is accurately and uniformly overlapped with the first outwardly expanded end portion 11a-2 and is slid. Make free contact.
- the inner peripheral surface 10P′a of the second outwardly expanded end portion 10P ′ of the link member 10 is the outer peripheral surface 11a ⁇ of the first outwardly expanded end portion 11a-2.
- the hole 10a in the link member 10 is slidably in contact with the outer peripheral surface of the circumferential portion 11a-1. Under such a state, the lower end portion 10eL of the link member is sandwiched between the upper rail D and the first outwardly expanded end portion 11a-2, and as shown in FIG. It can be rotated in the front-rear direction indicated by the arrow about the cylindrical portion 11a-1. Thereby, the link pivoting portion E-4 is configured.
- the lower end portion 10eL of the link member becomes the second outwardly expanded end by forming the second outwardly expanded end portion 10P ′.
- the contact area with the first outwardly expanded end portion 11a-2 is significantly increased as compared with the structure of the first embodiment. Therefore, rattling when the link member 10 rotates about the cylindrical portion 11a-1 is reliably prevented, and the detachment of the lower end portion 10eL of the link member from the upper rail D is also reliably prevented.
- the first outwardly widened end portion 11a-2 and the second outwardly widened end portion 10P ′ are simultaneously and uniformly formed only by pressing with a punch. Slidable contact is immediately possible. Therefore, since it is not necessary to adjust the contact with the upper rail like a conventional rivet, the operation can be performed easily and quickly.
- FIG. 17 shows a fifth embodiment in which the bush 13 is used in the fourth embodiment. That is, using the synthetic resin bush 13 of the second embodiment shown in FIG. 7, the link member 10 may be smoothly rotated in the fourth embodiment.
- the bush 13 is fixed to the cylindrical protrusion 11 as in the bush mounting step shown in FIGS. 8 to 9 in the second embodiment.
- the cylindrical protrusion 11 is inserted into the hole 10 a and the cylindrical protrusion 11 of the link member 10 and attached to the cylindrical protrusion 11 of the link member 10.
- the cylindrical portion 13a of the bush 13 is interposed between the cylindrical protruding portion 11 on the upper rail D side and the cylindrical protruding portion 10P on the link member 10 side.
- the cylindrical portion 13a of the bush 13 is also extended in the shape of a truncated cone between the portions 10P ′.
- the bush 13 is fixed and immovable with respect to the first outwardly widened end portion 11a-2 and the cylindrical portion 11a-1 of the cylindrical projection 11 formed by the punch, the punch 12
- the second outwardly expanded end portion 10P ′ of the link member 10 formed by the above is in a state of sliding on the outer peripheral surface of the bush 13. Therefore, the link member 10 can be smoothly rotated around the cylindrical portion 11a-1 of the first outwardly expanded end portion 11a-2.
- FIG. 18 is a sixth embodiment showing an example in which the link structure of the present invention is applied to the ottoman M provided in the front portion of the seat cushion frame 3.
- the pair of link members 20, 20 of the ottoman M are pivotally attached to a pair of connection brackets 30, 30 provided at the front part of the seat cushion frame 3 to form a conceptual link pivot part E.
- Any structure of all the embodiments from the first embodiment to the fifth embodiment described above can also be applied to the link pivoting portion E in this ottoman. Accordingly, even in the ottoman M, the effects of the first to fifth embodiments can be obtained.
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- Aviation & Aerospace Engineering (AREA)
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- Passenger Equipment (AREA)
Abstract
Description
前記リンク部材は端部において孔部を有してなり、
前記固定部と前記可動部のいずれか又は双方に、該リンク部材がその孔部において枢着される枢着部を設けてなり、
この枢着部は、円筒部を有するとともに、その円筒部の自由端において外方に拡径する外方拡開状端部を有してなり、
斯かる円筒部は、前記固定部と前記可動部のいずれか又は双方において一体に形成してなり、
該円筒部にリンク部材の前記孔部が支持されるとともに、同リンク部材の前記端部が、前記外方拡開状端部と、前記固定部と前記可動部のいずれか又は双方との間に挟まれてなることにより、リンク部材が円筒部を中心に回動自在としたことを特徴とする。
a)アッパレールDには、円筒部11a―1と、その円筒部から外側へ拡径する外方拡開状端部(ラッパ状開口部)11a―2を有してなる突起部が形成されている。後述するように、これらの円筒部と外方拡開状部は、アッパレールDに予め突設した円筒状突起部に対して円錐状端部を有するポンチによって押圧形成されたものである。
b)前記円筒部11a-1が、リンク部材の下端部10eLの円形連結孔10aにて支持されることにより、リンク部材10が該円筒部を中心に回動可能となすとともに、リンク部材の下端部10eLがアッパレールDと前記外方拡開状端部11a-2との間に挟まれ支持される。
以上の構造により、ポンチの円錐状端部を単に押圧するだけで均一な外方拡開状端部が形成され、そのくびれ部分(図3の11cの部分)が、リンク部材の連結孔のエッジに正確で均一な円周上の接触をなす。従って、リンク部材10をアッパレールDに安定した枢着のもとに連結可能となるので、リンク部材はガタつくことなく円筒部を中心に回動するとともに、アッパレールDからの離脱も確実に防止できる。
a)リンク部材の下端部10eLがアッパレールDと反り返り環状部の基部11’c間に挟まれて、図12に示されるようにリンク部材10が矢印の前後方向に円筒部11’aAを中心に回動可能となる。
b)更に、反り返り環状部11’a-2の環状端末11’a-2Eは、リンク部材10の外側表面10fに全て均一に摺動可能に接触しているので、リンク部材10は回動中も斯かる環状端末11’a-2Eによって安定して支持される。
2・・・スライドレール
3・・・シートクッションフレーム
3a・・・クッションサイドフレーム
6・・・シートバックフレーム
C・・・ロアレール
D・・・アッパレール
Da・・・アッパレールの外面
10・・・リンク部材
10a・・・リンク部材の連結孔
10aE・・・リンク部材の孔部のエッジ
10eL・・・リンク部材の下端部
10eU・・・リンク部材の上端部
10f・・・リンク部材の外側表面
11・・・円筒状突起部
11a・・・円筒状突起部の本体部
11aH・・・円筒状突起部の孔部
12・・・ポンチ
12a・・・ポンチの円錐状端部
12b・・・ポンチの中心
E・・・概念上のリンク枢着部
E-1・・・第一実施例におけるリンク枢着部
11a―1・・・円筒部
11a―2・・・外方拡開状端部
11c・・・基部(くびれ部)
E-2・・・第二実施例におけるリンク枢着部
13・・・合成樹脂製ブッシュ
13a・・・合成樹脂製ブッシュの本体部
13b・・・合成樹脂製ブッシュのフランジ部
E-3・・・第三実施例におけるリンク枢着部
11’・・・円筒状突起部
11’aH・・・円筒状突起部の孔部
11’a・・・円筒部
11’a-1・・・外方拡開状端部
12’A・・・第一ポンチ
12’Aa・・・第一ポンチの円錐状端部
12’Ab・・・第一ポンチの中心
11’aA・・・円筒部
11’a-2・・・反り返り環状部
11’a-2E・・・反り返り環状部の環状端末
11’c・・・基部(くびれ部)
PD・・・ポンチ付きプレス加工装置
12’B・・・第二ポンチ
12’Aa・・・第二ポンチの円錐状端部
12’Ab・・・第二ポンチの中心
PDa・・・プレス型湾曲状キャビティ
E-4・・・第四実施例におけるリンク枢着部
11a-2・・・第一の外方拡開状端部
11a-2F・・・第一の外方拡開状端部の外周面
10P・・・リンク部材の円筒状突起部
10P’・・・第二の外方拡開状端部
10P’a・・・第二の外方拡開状端部の内周面
E-5・・・第五実施例におけるリンク枢着部
13・・・合成樹脂製ブッシュ
13a・・・合成樹脂製ブッシュの本体部
13b・・・合成樹脂製ブッシュのフランジ部
E-6・・・第六実施例におけるリンク枢着部
M・・・オットマン
20・・・リンク部材
30・・・連結ブラケット
Claims (12)
- 固定部と、この固定部に対して移動可能な可動部を含んでなり、該可動部がリンク部材を介して該固定部に連結してなる車両用シートのリンク構造において、
前記リンク部材は端部において孔部を有してなり、
前記固定部と前記可動部のいずれか又は双方に、該リンク部材がその孔部において枢着される枢着部を設けてなり、
この枢着部は、円筒部を有すると共に、その円筒部の自由端において外方に拡径する外方拡開状端部を有してなり、
斯かる円筒部は、前記固定部と前記可動部のいずれか又は双方において一体に形成されてなり、
該円筒部にリンク部材の前記孔部が支持されるとともに、同リンク部材の前記端部が、前記外方拡開状端部と、前記固定部と前記可動部のいずれか又は双方との間に挟まれてなることにより、リンク部材が円筒部を中心に回動自在としたことを特徴とする車両用シートのリンク構造。 - 前記固定部が車床からなり、前記可動部が車両用シートのシートクッションに設けてなるシートクッションフレームからなる請求項1記載の車両用シートのリンク構造。
- 前記固定部が、車両用シートのシートクッションに設けてなるシートクッションフレームからなり、前記可動部がオットマンからなる請求項1記載の車両用シートのリンク構造。
- 前記外方拡開状端部が、前記円筒部の中心軸を中心とした外方へ拡径する円錐台状形状のもとに開口してなる請求項1記載の車両用シートのリンク構造。
- 前記枢着部においては、予め、前記固定部と前記可動部のいずれか又は双方において、バーリング加工によって円筒状突起部を形成し、その円筒状突起部を前記リンク部材の孔部に挿通させることによりリンク部材を前記固定部と前記可動部のいずれか又は双方に取付けた後に、該円筒状突起部において前記円筒部と前記外方拡開状端部を形成してなる請求項1記載の車両用シートのリンク構造。
- 前記円筒部と前記外方拡開状端部の形成にあっては、円錐状端部を有したポンチを使用して、前記円筒状突起部の外部に該ポンチの円錐状端部を押しつけることにより形成してなる請求項5記載の車両用シートのリンク構造。
- 前記固定部が車床からなり、前記可動部が車両用シートのシートクッションに設けてなるシートクッションフレームからなるとともに、ロアレールとロアレールに摺動自在に取付けたアッパレールからなるスライドレールを該車床に固定してなり、前記枢着部を、該シートクッションフレームと該アッパレールのいずれか又は双方に設けてなる請求項1記載の車両用シートのリンク構造。
- 合成樹脂製ブッシュが、前記固定部と前記可動部のいずれか又は双方とリンク部材との間に介在するとともに、前記枢着部と前記リンク部材の前記孔部との間にも介在するよう構成してなる請求項1記載の車両用シートのリンク構造。
- 前記外方拡開状端部が第一の外方拡開状端部をなし、前記枢着部には、更に、前記リンク部材において、その孔部を囲んで外方に拡径するように形成してなる第二の外方拡開状端部を構成してなり、その第二の外方拡開状端部の内周面が、前記第一の外方拡開状端部の外周面に摺動自在に接触してなる請求項1記載の車両用シートのリンク構造。
- 合成樹脂製ブッシュが、前記固定部と前記可動部のいずれか又は双方と前記リンク部材との間に介在すると共に、該リンク部材の前記孔部と前記円筒部との間に介在し、且つ、前記第二の外方拡開状端部の前記内周面と前記第一の外方拡開状端部の前記外周面との間にも介在するよう構成してなる請求項9記載の車両用シートのリンク構造。
- 固定部と、この固定部に対して移動可能な可動部を含んでなり、該可動部がリンク部材を介して該固定部に連結してなる車両用シートのリンク構造において、
前記リンク部材は端部において孔部を有してなり、
前記固定部と前記可動のいずれか又は双方に、該リンク部材がその孔部において枢着される枢着部を設けてなり、
この枢着部は、円筒部を有するとともに、その円筒部の自由端において、前記リンク部材の前記孔部を中心として放射状にリンク部材方向へ湾曲状に反り返ってなる断面湾曲状の反り返り環状部を有してなり、
斯かる円筒部は、前記固定部と前記可動部のいずれか又は双方において一体に形成してなり、
前記反り返り環状部は環状端末を有し、その環状端末がリンク部材の表面に摺動可能な接触をなし、
該円筒部にリンク部材の前記孔部が支持されると共に、同リンク部材の前記端部が、前記環状端末と、前記固定部と前記可動部のいずれか又は双方との間に挟まれてなることにより、リンク部材が円筒部を中心に回動自在としたことを特徴とする車両用シートのリンク構造。 - 合成樹脂製ブッシュが、前記固定部と前記可動部のいずれか又は双方と前記リンク部材との間に介在すると共に、前記枢着部材と前記リンク部材との間にも介在するよう構成してなる請求項11記載の車両用シートのリンク構造。
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US15/326,712 US20170210253A1 (en) | 2014-07-31 | 2015-06-11 | Link structure in motor vehicle seat |
JP2016538203A JPWO2016017295A1 (ja) | 2014-07-31 | 2015-06-11 | 車両用シートのリンク構造 |
EP15828238.4A EP3176027A4 (en) | 2014-07-31 | 2015-06-11 | Link structure for vehicle seat |
CA2955902A CA2955902A1 (en) | 2014-07-31 | 2015-06-11 | Link structure in motor vehicle seat |
CN201580037903.XA CN106573556B (zh) | 2014-07-31 | 2015-06-11 | 车辆用座椅的连杆构造 |
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WO2023136133A1 (ja) * | 2022-01-12 | 2023-07-20 | 株式会社今仙電機製作所 | 車両用シート装置 |
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US10766383B2 (en) * | 2016-07-28 | 2020-09-08 | Tachi-S Co., Ltd. | Vehicle seat |
JP7059704B2 (ja) * | 2018-03-12 | 2022-04-26 | いすゞ自動車株式会社 | シート位置決め構造及び、シート位置決め方法 |
KR102218451B1 (ko) | 2019-08-09 | 2021-02-19 | 주식회사 포스코 | 시트 프레임 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001012421A (ja) * | 1999-07-02 | 2001-01-16 | Daihatsu Motor Co Ltd | 薄板の結合構造及びシートのフレーム構造 |
JP2003260964A (ja) * | 2002-03-11 | 2003-09-16 | Delta Kogyo Co Ltd | 車両における板材の結合構造 |
JP2009066128A (ja) * | 2007-09-12 | 2009-04-02 | Toyota Boshoku Corp | 車両用シートバック |
JP2009154638A (ja) * | 2007-12-26 | 2009-07-16 | Shiroki Corp | シート |
JP2009166766A (ja) * | 2008-01-18 | 2009-07-30 | Aisin Seiki Co Ltd | 車両用リンク構造 |
WO2010144084A1 (en) * | 2009-06-10 | 2010-12-16 | Lear Corporation | Vehicle seat with a pivotably connected linking member |
JP2013248109A (ja) * | 2012-05-31 | 2013-12-12 | Nhk Spring Co Ltd | オットマン装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6217115B1 (en) * | 1999-04-20 | 2001-04-17 | Dura Global Technologies, Inc. | Simplified linkage assembly |
DE10109526B4 (de) * | 2001-02-28 | 2005-03-17 | Grammer Ag | Fahrzeugsitz |
CN202966013U (zh) * | 2012-12-17 | 2013-06-05 | 湖北中航精机科技股份有限公司 | 一种电动座椅及其调节装置 |
-
2015
- 2015-06-11 EP EP15828238.4A patent/EP3176027A4/en not_active Withdrawn
- 2015-06-11 WO PCT/JP2015/066876 patent/WO2016017295A1/ja active Application Filing
- 2015-06-11 CN CN201580037903.XA patent/CN106573556B/zh not_active Expired - Fee Related
- 2015-06-11 JP JP2016538203A patent/JPWO2016017295A1/ja active Pending
- 2015-06-11 CA CA2955902A patent/CA2955902A1/en not_active Abandoned
- 2015-06-11 US US15/326,712 patent/US20170210253A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001012421A (ja) * | 1999-07-02 | 2001-01-16 | Daihatsu Motor Co Ltd | 薄板の結合構造及びシートのフレーム構造 |
JP2003260964A (ja) * | 2002-03-11 | 2003-09-16 | Delta Kogyo Co Ltd | 車両における板材の結合構造 |
JP2009066128A (ja) * | 2007-09-12 | 2009-04-02 | Toyota Boshoku Corp | 車両用シートバック |
JP2009154638A (ja) * | 2007-12-26 | 2009-07-16 | Shiroki Corp | シート |
JP2009166766A (ja) * | 2008-01-18 | 2009-07-30 | Aisin Seiki Co Ltd | 車両用リンク構造 |
WO2010144084A1 (en) * | 2009-06-10 | 2010-12-16 | Lear Corporation | Vehicle seat with a pivotably connected linking member |
JP2013248109A (ja) * | 2012-05-31 | 2013-12-12 | Nhk Spring Co Ltd | オットマン装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3176027A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023136133A1 (ja) * | 2022-01-12 | 2023-07-20 | 株式会社今仙電機製作所 | 車両用シート装置 |
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CN106573556A (zh) | 2017-04-19 |
US20170210253A1 (en) | 2017-07-27 |
JPWO2016017295A1 (ja) | 2017-04-27 |
CN106573556B (zh) | 2019-05-21 |
EP3176027A4 (en) | 2017-11-01 |
CA2955902A1 (en) | 2016-02-04 |
EP3176027A1 (en) | 2017-06-07 |
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