![]() SLIDE FOR VEHICLE SEAT AND VEHICLE SEAT COMPRISING SUCH A SLIDER
专利摘要:
Slide for a vehicle seat, comprising first and second sections (8, 9) sliding relative to each other, a latch (19) movably mounted on the first section, an intermediate control part (41) adapted to acting on the lock to unlock and a spring blade (42) elastically biasing the intermediate control member to a rest position where it leaves the lock in the locked position. 公开号:FR3032657A1 申请号:FR1551307 申请日:2015-02-17 公开日:2016-08-19 发明作者:Olivier Kircher;Anthony Metairie 申请人:Faurecia Sieges dAutomobile SA; IPC主号:
专利说明:
[0001] A slide for a vehicle seat and a vehicle seat comprising such a slide. The present invention relates to slides 5 for vehicle seats and vehicle seats comprising such slides. Such slides are known, such as for example that described in document FR-1261847 which gives complete satisfaction. Slides of this type are of simple and robust construction; they are also compact. However, they have the disadvantage of imposing a particular type of unlocking device, dedicated, relatively complex, and therefore quite expensive. The present invention is intended in particular to further improve the slides of this type, in particular to make them more adaptable while reducing their manufacturing price. To this end, the invention mainly proposes a slide for a vehicle seat, comprising: first and second sections slidably mounted relative to one another in a longitudinal direction; a latch mounted on the first section and movable between a locked position where said latch immobilizes the first and second sections relative to each other, and an unlocked position where said latch allows the first and second sections to slide relative to each other, said latch being biased resiliently toward the locked position, - an intermediate control member controlling the latch, the intermediate control member being normally in a rest position where said intermediate control member leaves the latch in the locked position, 3032657 2 - a spring blade, distinct from the intermediate control part, and resiliently biasing said intermediate piece of control to the rest position, - and a control member connected to the intermediate control member and operable by a user to move the intermediate control member to an unlocked position where said intermediate control part places the lock in the unlocked position. [0002] Thanks to these arrangements, the compact, simple and robust nature of the slideway is kept, while reducing the cost of manufacturing and arranging the component parts. In addition, it is possible to reuse a large number of standard components slides of the aforementioned type, which tends to further reduce the cost of the slide. In various embodiments of the slide according to the invention, one or more of the following arrangements may optionally be used: the intermediate control piece is made of plastic; - The leaf spring is metal; - The spring blade comprises a hooking device clipping the intermediate control part to said leaf spring; the fastening device comprises at least one tongue extending between a first end connected by a fold to the spring blade and a second end provided with at least one clipping tab, said at least one tab being engaged in a throat of the intermediate control piece and said at least one clipping tab being clipped into a slot of said groove; - The spring blade comprises a locking finger extending outwardly through a window 35 formed in a web of the first section, to a fixing portion adapted to interfere with said core; - The intermediate control part cooperates by interlocking with the control member; - The first and second sections define between them a hollow interior space, the latch and the leaf spring being arranged mainly in said interior space and the intermediate control part being disposed in said interior space; - The intermediate control member comprises at least one tab extending in the longitudinal direction, said at least one tab being adapted to act by simply pressing on at least one tooth plate belonging to the latch for moving said latch in the unlocked position; The second section comprises a web and two lateral wings, at least one of the lateral wings of the second section comprising indentations, and in which the lock comprises: said toothed plate, substantially parallel to the core and movable in one direction; vertical, transverse to the longitudinal direction, to selectively engage and disengage the indentations of said second section, - a housing clipped to the first profile, - an elastic return device connecting said toothed plate to said housing and adapted to resiliently bias the latch to the locked position; the first section comprises a web and two lateral wings, and in which the intermediate control part comprises two tabs extending in parallel with each other in the longitudinal direction, between the casing and respectively the one and the other of said lateral wings, said tabs acting by simply pressing on an upper surface of said at least one tooth plate for disengaging said at least one tooth plate 3032657 4 indentations. Furthermore, the invention also relates to a vehicle seat comprise at least one slide as defined above and a seat fixed to the first section of said slide. Other features and advantages of the invention will become apparent from the following description of two of its embodiments, given by way of non-limiting examples, with reference to the attached drawings. In the drawings: FIG. 1 is a schematic view of a seat that can be equipped with a set of slides according to the invention; FIG. 2 is a perspective view of one of the slides bearing the seat of the seat; FIG. 3 is an end view of the slide of FIG. 2, in the locked position, FIG. 3A is a sectional view of the detail IIIA of FIG. 3, FIG. FIG. 4 is a perspective view in longitudinal section of a part of the slide of FIG. 2, in the locked position, FIGS. 5A and 5B are perspective and exploded views of the control device of FIG. FIG. 6 is a sectional view along the axis VI-VI of FIG. 2, in the locked position, FIG. 7 is a perspective view in longitudinal section of a portion of FIG. the slide of Figure 2, in the unlocked position, - Figure 8 is a perspective view and in long section. Figure 9 is a sectional view along the axis VI-VI of Figure 2, in the unlocked position. In the different figures, the same references designate identical or similar elements. [0003] 1 represents a seat 1 of a motor vehicle which comprises a backrest 2 mounted on a seat 3. The seat 3 is fixed on the floor 4 of the vehicle via a set of slides 5 which allows the seat 1 to slide on the floor 4 in a longitudinal direction X. The slide assembly 5 comprises two parallel rails 6, one of which is clearly visible in FIG. 2. Each of the parallel rails 6 extends in the longitudinal direction X The slide assembly 5 further comprises a control member 7 common to the two slides 6, for example in the form of a generally U-shaped rudder. Each of the slides 6 comprises a first section 8 and a second section 9. The first section 8 20 can carry the seat 3 and can be slidably mounted in the longitudinal direction X on the second profile 9. The second profile 9 can be attached to the floor 4. The first and second Me profiles 8, 9 are for example metallic. The first and second sections 8, 9 are, for example, nested one inside the other defining a hollow interior space. The first section 8 is here for example a male section and the second section 9 a female section. As represented in FIGS. 3, 3A, 6, 9, and by way of example, the first section 8 may have a substantially U-shaped cross-section. The first section 8 may comprise an upper horizontal core 12 and fixed to the seat 4 of the seat 1. The first section 8 may further comprise two lateral flanges 13, 14 which each extend substantially vertically downwardly from the seat 3032657 6 4. The second profile 9 may also have a cross section. U, with a horizontal lower core 15 fixed to the floor 4 of the vehicle and extending parallel to the web 12 of the first section 8, and two lateral wings 16, 17 which each extend substantially vertically upwards from the lower core. As shown in FIGS. 3, 3A, at least one of the lateral wings 16, 17 of the second profile 9 forms a reentrant trough having a substantially vertical drooping terminal wall 18. The falling end wall 18 is, for example, provided with indentations 18a. The indentations 18a are formed along the longitudinal direction X with, for example, a constant pitch. The indentations 18a are adapted to receive teeth 21 15 of a latch 19 when said latch 19 is in the locked position, immobilizing the first section 8 relative to the second profile 9. In the example shown, the two lateral wings 16, 17 the second section 9 are provided with indentations 18a. [0004] The latch 19 is carried by the first section 8. The latch 19 is, for example, substantially disposed in said inner space 10 of the slide 6. With this arrangement, the slideway 6 according to the invention is compact. The latch 19 comprises a toothed plate 20 substantially parallel to the core 15 of the second section 9. The toothed plate 20 comprises at least a first series of teeth 21 extending in a transverse direction Y to the longitudinal direction X facing one of the side walls 16, 17 of the second profile 9. [0005] In the embodiment shown, the toothed plate 20 comprises a second series of teeth 21, opposite to the first set of teeth 21. The first set of teeth 21 and the second set of teeth 21 extend respectively opposite the one and the other side walls 16, 17 of the second section 9. [0006] The teeth 21 advantageously cross windows 13a formed in at least one of the lateral wings 13, 14 of the first profile 8 (FIG. 3A). More particularly, the first series of teeth 21 passes through windows 13a formed in the lateral flange 13 of the first profile 8 and the second series of teeth 21 passes through windows 13a formed in the lateral flange 14 of the first section 8. The latch 19 is movably mounted with respect to the first profile 8, so that the toothed plate 20 (including the teeth 21) moves in a vertical direction Z, perpendicular to the longitudinal direction X and the transverse direction Y, between said locked position and an unlocked position where said latch 19 allows a sliding of the first section 8 of the slideway 6 in the longitudinal direction X. More particularly, the teeth 21 of the toothed plate 20 of the latch 19 are disengaged from the indentations 18a of the second profile 9 when said latch 19 is in unlocked position. Thus, the teeth 21 are adapted to selectively engage and disengage said indentations 18a through the aforementioned windows 13a. As illustrated in FIG. 8, the latch 19 is connected to the first section 8 by a housing 23, which in this case is part of the latch 19 itself. More particularly, the housing 23 comprises, for example, two pairs of elastic tabs 24 extending in the vertical direction Z. Each of the pairs of elastic tabs 24 passes respectively through a window 25 formed on the web 12 of the first section 8 so as to clip said housing 23 to said first profile 8. The housing 23 is made, for example, two half plastic housings. The housing 23 may comprise a housing 26, for example of cylindrical shape, and in which is received at least in part a resilient return device 27. The elastic return device 27 is adapted to resiliently bias the latch 19 to the locked position. The elastic return device 27 5 comprises a pusher 28 and an elastic member such as, for example, a return spring 29. The pusher 28 has a shape, for example, substantially cylindrical. The pusher 28 extends in the vertical direction Z between a first end 28a and a second end 28b. The first end 28a of the pusher 28 can pass through a window 30 of the web 12 of the first profile 8. The second end 28b of the pusher 28 is integral with the toothed plate 20 so as to connect said toothed plate 20 to the housing 23. The pusher 28 is movable in translation in the vertical direction Z between a high position, in which the latch 19 is in the locked position, and a low position, in which the latch 19 is in the unlocked position. The pusher 28 may further comprise a ring 31 adapted to hold said pusher 28 in the housing 26 of the housing 23. The ring 31 may be further adapted to compress the return spring 29 when the latch 19 moves to the unlocked position. (Figure 8). The return spring 29 extends in the vertical direction Z. The return spring 29 works in compression. The return spring 29 is adapted to elastically return the pusher 28 to the high position, said pusher 28 causing the latch 19 to the locked position. [0007] The slideway 6 further comprises an intermediate control piece 41 adapted to control the latch 19. The intermediate control piece 41 may be arranged in said inner space 10 to reinforce the compactness of the slideway 6. The intermediate piece of control 41 is normally in a rest position (Figure 4) where it leaves the latch 19 in the locked position. The intermediate control part 41 is movable between said rest position and an unlocking position (FIG. 7) where it places the latch 19 in the unlocked position. The intermediate control part 41 may be a single plastic part (FIGS. 5A and 5B). The intermediate control part 41 is integral with the lifter 7. More particularly, the intermediate control part 41 comprises a fixing portion 43. The intermediate control piece 41 cooperates by interlocking with the spreader bar 7, securing the intermediate control piece 41 7. In particular, the fixing portion 43 has a central recess 44 in which is fitted one of the branches of the spreader bar 7. The intermediate control piece 41 is adapted to move the latch 19 to the unlocked position when the 7 is operated by a user, for example by lifting its central portion forward of the seat 1. The intermediate control member 41 further comprises at least one tab 45 extending in the longitudinal direction X between a first end secured to the attachment portion 43 and a second free end 45a. The second end 45a is, for example, a curved edge facing the toothed plate 20 of the latch 19. The second end 45a may be in contact with an upper surface 20a of the toothed plate 20 of the latch 19. The lug 45 is adapted to act by simply pressing on the tooth plate 20 so as to move the latch 19 to the unlocked position. More particularly, the second end 45a of the tab 45 is adapted to act by simply pressing on the upper surface 20a of the toothed plate 20 so as to disengage the teeth 21 of said toothed plate 20 from the indentations 18a, moving said lock 3032657 19 to the unlocked position. In the embodiment shown, the intermediate control member 41 comprises two tabs 45. The two tabs 45 extend, for example, in parallel to each other in the longitudinal direction X. Each of the two tabs 45 is respectively located between the casing 23 and one and the other side wings 13, 14 of the first section 8. The slide 6 further comprises a spring blade 42. The spring blade 42 may be a single metal piece (FIGS 5A and 5B). The spring blade 42 may be elastically deformable. The spring blade 42 is adapted to resiliently bias the intermediate control member 41 towards the rest position, so that it no longer acts on the latch 19. The leaf spring 42 comprises a body 40. body 50 may comprise a base 50a, a first side wall 50b and a second side wall 50c opposite to the first side wall 50b. The body 50 is, for example, U-shaped. The base 50a may extend in the longitudinal direction X and the first and second side walls 50b, 50c may extend in the vertical direction Z from said base. 50a. The first side wall 50b and the second side wall 50c each comprise a recess 51. Each of the recesses 51 is adapted to be traversed by the spreader 7. The spring blade 42 can be secured (in a manner known per se) to the In addition, the spring blade 42 may be attached to the first profile 8. More particularly, the leaf spring 42 comprises a fixing portion 52 extending from the first side wall 50b, parallel to the core 12 of the first profile 8. Said fixing portion 52 can be fixed under said core 12. [0008] The spring blade 42 further comprises an attachment device 53 adapted to assemble said spring blade 42 to the intermediate control member 41 by clipping. The hooking device 53 comprises at least one tongue 54. The tongue 54 can be connected by a fold 55 to the body 50. More particularly, the fold 55 can connect the tongue 54 to the second side wall 50c of the body 50. tongue 54 can extend in the vertical direction Z, from the fold 55 to a second end 56 free. The second end 56 comprises at least one clipping tab 57, said at least one clipping tab 57 protruding in the transverse direction Y. The clipping tab 57 may have a generally triangular shape. In the embodiment shown, the hooking device 53 comprises two tongues 54. Each of the tongues 54 can be respectively connected by a fold 55 to the body 50. Each of the clipping tabs 57 of the tongues 54 projects respectively, for example , facing each other. [0009] As illustrated in FIGS. 6 and 9, the hooking device 53 is adapted to grip at least a portion of the intermediate control piece 41. More particularly, the hooking device 53 is adapted to grip the fixing portion 43 with the intermediate control part 41. The fold 55 and the clipping tab 57 are adapted to translate in translation in the vertical direction Z the fastening portion 43 to the leaf spring 42. The tongue 54 and the second side wall 50c are adapted to fasten in translation 30 in the longitudinal direction X the fastening portion 43 to the spring blade 42. The tongue 54 is adapted to fasten in translation in the transverse direction Y the fixing portion 43 to the leaf spring 42. More particularly, the tongue 54 is engaged in a groove 46 of the fixing portion 43. The groove 46 extends in the vertical direction Z. The groove 46 comprises a slot 47. Said slot 47 extends in the transverse direction Y and is preferably located near one end of the groove 46. The slot 47 5 can receive by clipping the clipping tab 57 In the embodiment shown, the fixing portion 43 comprises two grooves 46. Each of the slots 47 of the grooves 46 extends, for example, towards each other. The leaf spring 42 further comprises a locking finger 60. The locking finger 60 can extend outwardly through a window 63 formed on the web 12 of the first section 8. The locking finger 60 comprises a extension portion 61 and an attachment portion 62. The extension portion extends substantially in the vertical direction Z from the second side wall 50c. The attachment portion 62 extends substantially in the longitudinal direction X from said extension portion 61. [0010] The attachment portion 62 is adapted to interfere with the core 12 of the first profile 8 when the spring blade 42 is deformed elastically, to limit the deformation of said spring blade 42. The locking pin 60 is adapted to limit the displacement 25 generated by the elastic deformation of the leaf spring 42 relative to the core 12 of the first section 8. The slides 6 which have just been described operate as follows. When the user wishes to move his seat 1 30 in the longitudinal direction X, it actuates the spreader 7, for example by lifting its central portion to the front of the seat 1. The lifter 7 moves the intermediate control part 41 present in each slides 6 to the unlocking position, so that the tabs 45 of said intermediate control member 41 bears against the latch 19, moving said latch 19 to the unlocked position. The lifter 7 further elastically deforms the spring blade 42. The latch 19 being in the unlocked position, the user can then slide the seat 1 in the longitudinal direction X. When the adjustment of the seat 1 by the user is completed, it releases the rudder 7. The spring blade 42 resiliently returns to its initial position, causing the intermediate control member 41 to the rest position so that it no longer acts on the latch 19. The latch 19 is then resiliently returned to the locked position, so that the first section 8 can no longer move relative to the second section 9.
权利要求:
Claims (10) [0001] REVENDICATIONS1. Slide for a vehicle seat, comprising: - first and second sections (8, 9) slidably mounted relative to each other in a longitudinal direction (X), - a latch (19) mounted on the first section (8) and movable between a locked position where said latch secures the first and second profiles relative to each other, and an unlocked position where said latch allows the first and second slidable profiles relative to each other. the other, said latch being biased resiliently towards the locked position, - an intermediate control member (41) controlling the latch (19), the intermediate control member being normally in a rest position where said intermediate control member leaves the latch in the locked position, - a spring blade (42), distinct from the intermediate control part (41), and resiliently biasing said intermediate control member towards the position resting member, and a control member (7) connected to the intermediate control member (41) and operable by a user to move the intermediate control member to an unlocking position where said intermediate control member places the lock ( 19) in the unlocked position. [0002] 2. Slide according to claim 1, wherein the intermediate control member (41) is made of plastic. [0003] 3. Slide according to claim 1 or claim 2, wherein the spring blade (42) is metal. 35 [0004] 4. Slide according to any one of the preceding claims, wherein the leaf spring (42) comprises a hooking device (53) clipping the intermediate control member (41) to said leaf spring. [0005] A slide according to claim 4, wherein the hooking device (53) comprises at least one tongue (54) extending between a first end connected by a fold (55) to the spring blade (42) and a second end (56) having at least one clipping tab (57), said at least one tab being engaged in a groove (46) of the intermediate control member (41) and said at least one clipping tab ( 57) being clipped into a slot (47) of said groove (46). [0006] 6. Slide according to any one of the preceding claims, wherein the intermediate control part (41) cooperates by interlocking with the control member (7). [0007] 7. Slide according to any one of the preceding claims, wherein the intermediate control member (41) comprises at least one tab (45) extending in the longitudinal direction (X), said at least one tab being adapted to acting by simply pressing on at least one tooth plate (20) belonging to the latch (19) to move said latch in the unlocked position. 25 [0008] 8. Slide according to claim 7, wherein the second section (9) comprises a web (15) and two lateral wings (16, 17), at least one of the lateral wings of the second section having indentations (18a), and in wherein the latch (19) comprises: - said toothed plate (20), substantially parallel to the web (15) and movable in a vertical direction (Z), transverse to the longitudinal direction (X), so as to selectively engage and disengage indentations (18a) of said second profile, 35 - a housing (23) clipped to the first profile (8), - an elastic return device (27) connecting said toothed plate (20) to said housing (23). ) and adapted to resiliently bias the latch (19) to the locked position. [0009] 9. Slide according to claim 8, wherein the first section (8) comprises a core (12) and two side wings (13, 14), and wherein the intermediate control part (41) comprises two lugs (45) s. extending in parallel with each other in the longitudinal direction (X), between the housing (23) and respectively one and the other of said lateral wings (13, 14), said tabs (45) acting by simple pressing on an upper surface (20a) of said at least one tooth plate (20) for disengaging said at least one tooth plate indentations (18a). [0010] 10. Vehicle seat comprise at least one slide (6) according to any one of the preceding claims and a seat (3) fixed to the first section (8) of said slide.
类似技术:
公开号 | 公开日 | 专利标题 FR2999123A1|2014-06-13|SLIDE FOR VEHICLE SEAT AND VEHICLE SEAT COMPRISING SUCH A SLIDER. FR3032657A1|2016-08-19|SLIDE FOR VEHICLE SEAT AND VEHICLE SEAT COMPRISING SUCH A SLIDER FR2881089A1|2006-07-28|HEAD-SUPPORT RECEIVING SHEATH FR2717429A1|1995-09-22|Guide bush for head restraints in vehicle seats. EP2120298B1|2011-08-24|Multi-contact connector with locking element built into the thickness of the case EP2825410B1|2016-03-30|Device for mounting a unit, notably a radio, in a motor vehicle instrument panel compartment EP2953816A1|2015-12-16|Headrest for a motor vehicle seat FR2888539A1|2007-01-19|Three door vehicle seat, has spring leaf connected to fixed profile and boss connected to seat base, where leaf and boss retain base when base is in forward position as base is not subjected to backward force greater than preset value EP2581530B1|2014-12-03|Retaining device for a semi-stationary shutter EP0205379A1|1986-12-17|Buckle, in particular for safety belts EP2271505B1|2012-08-01|System for applying a clip to the body of a writing instrument FR2767096A1|1999-02-12|Slide mechanism for vehicle seat WO2018015691A1|2018-01-25|Headrest for a motor vehicle seat FR2969967A1|2012-07-06|Slide for use in vehicle seat, has actuating arm whose free end is arranged to switch locking part from locking position to unlocking position, where locking part includes housing opened in longitudinal direction to receive free end of arm FR2997658A1|2014-05-09|Slide for seat of car, has two bolts locked on two teeth in two sets of relative positions between two profiles, respectively, where relative positions are shifted relative to each other at non-zero shift distance in longitudinal direction WO2014049238A1|2014-04-03|Runner for vehicle seat and vehicle seat including such a runner FR3016146A1|2015-07-10|SLIDER AND SEAT FOR A MOTOR VEHICLE COMPRISING SUCH A SLIDER FR3033742A1|2016-09-23|SLIDE FOR VEHICLE SEAT AND VEHICLE SEAT COMPRISING SUCH A SLIDER WO2014049293A1|2014-04-03|Slide rail and motor vehicle seat comprising such a slide rail FR3078545A1|2019-09-06|STORAGE DEVICE FOR OPENING VEHICLE INCORPORATING PUSH BUTTON ACTUATION MECHANISM. EP2458700A1|2012-05-30|Electrical appliance with tilting appliance mounting EP3377374A1|2018-09-26|System for assembling two parts with built-in guide member and locking element EP1734208B1|2008-07-16|Vehicle trim element arrangement forming gripping handle FR3050408B1|2019-06-14|HEADREST FOR MOTOR VEHICLE SEAT FR3057825A1|2018-04-27|SLIDE FOR VEHICLE SEAT AND VEHICLE SEAT COMPRISING SUCH A SLIDER
同族专利:
公开号 | 公开日 FR3032657B1|2018-11-16|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 FR2846918A1|2002-11-13|2004-05-14|Faurecia Sieges Automobile|Vehicle seat slide, has locking mechanism with primary lock to immobilize two sections and additional lock connected to stem of spring, which brings back primary lock from unlocked position to locked position| FR2901193A1|2006-05-22|2007-11-23|Faurecia Sieges Automobile|Slide for motor vehicle seat, has two locks with two sets of grooves for receiving two sets of teeth, recesses with width higher than that of all four sets of teeth, and support plate soliciting locks towards respective locking position| US20130206950A1|2012-02-15|2013-08-15|Shiroki Corporation|Slide rail device for vehicle| FR2997658A1|2012-11-06|2014-05-09|Faurecia Sieges Automobile|Slide for seat of car, has two bolts locked on two teeth in two sets of relative positions between two profiles, respectively, where relative positions are shifted relative to each other at non-zero shift distance in longitudinal direction|IT201800006569A1|2018-06-21|2019-12-21|Sliding device for a vehicle seat having an improved locking system| FR3086224A1|2018-09-21|2020-03-27|Faurecia Sieges D'automobile|SLIDE FOR VEHICLE SEAT AND VEHICLE SEAT HAVING SUCH A SLIDE| FR3093035A1|2019-02-26|2020-08-28|Faurecia Sièges d'Automobile|Manual release lever for seat slide|
法律状态:
2016-01-22| PLFP| Fee payment|Year of fee payment: 2 | 2016-08-19| PLSC| Search report ready|Effective date: 20160819 | 2017-01-24| PLFP| Fee payment|Year of fee payment: 3 | 2018-01-23| PLFP| Fee payment|Year of fee payment: 4 | 2019-01-23| PLFP| Fee payment|Year of fee payment: 5 | 2020-01-22| PLFP| Fee payment|Year of fee payment: 6 | 2021-01-20| PLFP| Fee payment|Year of fee payment: 7 |
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申请号 | 申请日 | 专利标题 FR1551307A|FR3032657B1|2015-02-17|2015-02-17|SLIDE FOR VEHICLE SEAT AND VEHICLE SEAT COMPRISING SUCH A SLIDER| FR1551307|2015-02-17|FR1551307A| FR3032657B1|2015-02-17|2015-02-17|SLIDE FOR VEHICLE SEAT AND VEHICLE SEAT COMPRISING SUCH A SLIDER| 相关专利
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