CN101048091B - Reclining device - Google Patents
Reclining device Download PDFInfo
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- CN101048091B CN101048091B CN200580036928.4A CN200580036928A CN101048091B CN 101048091 B CN101048091 B CN 101048091B CN 200580036928 A CN200580036928 A CN 200580036928A CN 101048091 B CN101048091 B CN 101048091B
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Abstract
A reclining device for adjusting the angle of the backrest of a seat for a vehicle, wherein a ratchet plate is rotatably stacked on a base plate, and an operating shaft is rotatably disposed on the rotating center axis thereof. A circular recessed part disposed about the operating shaft is formed on the opposed face of the ratchet plate to the base plate, and internal teeth are formed in the inner peripheral wall surface of the recessed part. Also, a pole having, on the front end face side, external teeth engage able with and disengage able from the internal teeth from the radial direction of the addendum circle thereof is disposed in the recessed part. On the other hand, a guide projection slidably guiding the pole in the radial direction is formed on the base plate, and a cam rotating together with the operating shaft is disposed in a space on the rear end face side of the pole. A release plate is disposed between the pole and the cam and ratchet plate so as to be rotated together with the cam, and a projection engaged with the cam groove of the pole is formed at the rotating end part of the release plate so that the internal teeth can be disengaged from the external teeth.
Description
Technical field
The present invention relates to a kind of inclination (リ Network ラ イ ニ Application グ) device of angle adjustment of the backrest for seat.In more detail, relate to the tilting gearing with such mechanism, the relative substrate of this mechanism is overlapping ratchet wheel plate pivotally, and configuration operation axle on its rotary middle spindle has between ratchet wheel plate and substrate and both relative rotary positions can be adjusted into the mechanism of desired angle.
Background technology
As this tilting gearing, for example has the device of the formation of Fig. 1～as shown in Figure 3.In these figure, substrate 1 is fixed in the underarm of vehicle seat cushion pad side, and ratchet wheel plate 5 is fixed in the upper arm of back side.
In addition, at the above-mentioned recess arrangement ratchet 11 of ratchet wheel plate 5, this ratchet 11 has in the front end face side can be from the external tooth 9 that radially engages and break away from internal tooth 7 of outside circle.On the other hand, substrate 1 be provided with towards radially to ratchet 11 carry out the direction protrusion 13,13 of sliding guidance '.
In addition, on operating axis 3, with operating axis integrated rotary ground installation cam 15.Cam 15 is disposed at the space of the rear end face side of ratchet 11, and the back of pushing ratchet 11 makes the external tooth 9 of ratchet 11 be engaged to the internal tooth of ratchet wheel plate 5.In addition, engage the outer end of helical spring 17 at this cam 15, the inner end engaging of this helical spring 17 is in substrate 1.Like this, cam 15 is engaged in direction (locking direction) application of force of the internal tooth 7 of ratchet wheel plate 5 towards the external tooth 9 that makes ratchet 11.
Face in ratchet wheel plate 5 sides of ratchet 11 forms projection 11a, and this projection 11a engages with the cam path 21b that is formed at release board 21.The shape of this cam path 21b is set as such shape, and this shape makes when release board counterclockwise turns round in Fig. 1, and the direction that the internal tooth 7 towards the external tooth 9 of ratchet 11 from ratchet wheel plate 5 leaves makes ratchet 11 move (for example with reference to patent documentation 1).
In addition, in another tilting gearing, also have mechanism as shown in Figure 4, this mechanism does not use release board when the internal tooth of ratchet wheel plate leaves at the external tooth that makes ratchet.In the figure, ratchet 33 also is disposed between substrate 41 and ratchet wheel plate 37.This ratchet 33 is radially guided by the direction protrusion 45,45 that is formed at substrate 41 ' court, makes internal tooth 39 engagements of external tooth 35 with the ratchet wheel plate 37 of ratchet 33, or leaves on the contrary.
In this existing device, slot part 33a is formed at the back of ratchet 33, form the arm 31a that can engage with the slot part 33a of ratchet 33 at cam 31.When unlocking, cam 31 is counterclockwise turned round.Like this, make the external tooth 35 of ratchet 33 move (for example, with reference to patent documentation 2) towards the direction that the internal tooth 39 from ratchet wheel plate 37 leaves.
Patent documentation 1: TOHKEMY 2001-87071 communique
Patent documentation 2: TOHKEMY 2001-87069 communique
Patent documentation 3: TOHKEMY 2004-105637 communique
Patent documentation 4: No. 3115231 communique of Japan Patent
Patent documentation 5: TOHKEMY 2002-34695 communique
Patent documentation 6: TOHKEMY 2003-180478 communique
Summary of the invention
There are following such problem in Fig. 1～tilting gearing shown in Figure 3, tilting gearing shown in Figure 4.
(1) Fig. 1～tilting gearing shown in Figure 3
The power that acts on the external tooth 9 of ratchet 11 by both engagement position K (with reference to Fig. 2) from the internal tooth 7 of ratchet wheel plate 5 is applied to the middle body of the thickness of slab direction of ratchet 11.With respect to this, the power that acts on the projection 11a of ratchet 11 by both contact site S (with reference to Fig. 2) from the side wall surface of the cam path 21b of release board 21 is applied to from the surface of ratchet 11 towards the position of thickness of slab direction (operating axis 3 axially) skew.
Therefore, the occasion of the latch-release operation of leaving from the internal tooth 7 of ratchet wheel plate 5 at the external tooth 9 that makes release board 21 revolution, carries out ratchet 11 makes ratchet 11 towards the moment of the direction M (with reference to Fig. 2) of thickness of slab direction inclination, and the latch-release operation sense is bad.
(2) tilting gearing shown in Figure 4
The masterpiece that acts on the slot part 33a of ratchet 33 from the arm 31a of cam 31 is used for the middle body of the thickness of slab direction of ratchet 33, so, do not produce the moment of above-mentioned direction M.
; the direction protrusion 45,45 of this tilting gearing ' not only ratchet 33 is carried out sliding guidance; and; to turn round load when vehicle collision etc. occurs when putting on ratchet wheel plate, still do not remove the external tooth 35 of ratchet 33 and ratchet wheel plate 37 internal tooth 39 firmly keep engagingly the position of ratchet 33.Therefore, the predetermined intensity of direction protrusion 45,45 ' requirement.
Yet, in formation shown in Figure 4, direction protrusion 45,45 ' in direction protrusion 45 ' in order to prevent the interference with the arm 31a of cam 31, less than direction protrusion 45, be difficult to guarantee direction protrusion 45 ' predetermined strength.
The present invention makes in order to address the above problem, and its purpose is to realize the tilting gearing that the latch-release operation sense is good, the intensity of direction protrusion also can be guaranteed.
be used for addressing the above problem, the invention of technical scheme 1 provides a kind of tilting gearing, this tilting gearing has substrate, this substrate overlapping ratchet wheel plate pivotally relatively, be disposed at pivotally the operating axis on the rotary middle spindle of this ratchet wheel plate, at the recess that forms circle with forward surface aforesaid substrate centered by above-mentioned operating axis above-mentioned ratchet wheel plate, be formed at the internal tooth of the internal perisporium face of this recess, be disposed at above-mentioned recess and form from the ratchet of the external tooth of the radially relatively above-mentioned interior indented joint of outside circle and disengaging in the front end face side, be located at aforesaid substrate, along the above-mentioned direction protrusion that radially above-mentioned ratchet is carried out sliding guidance, be disposed at the space of above-mentioned ratchet rear end face side, the cam that turns round together with the aforesaid operations axle and can push the rear end face of above-mentioned ratchet, be engaged to the direction of internal tooth of above-mentioned ratchet wheel plate towards the external tooth that makes above-mentioned ratchet to the force application mechanism of the above-mentioned cam application of force, at least towards above-mentioned ratchet wheel plate side opening be formed at the cam path of above-mentioned ratchet, this cam path is formed between the rear end face and described external tooth of described ratchet, and at above-mentioned ratchet and above-mentioned cam and the release board that configures pivotally together with above-mentioned cam between above-mentioned ratchet wheel plate, this release board turns round the end at it and is provided with the projection that engages with above-mentioned cam path, this projection and this release board are integrally formed, when the power of the above-mentioned force application mechanism of resistance makes the revolution of aforesaid operations axle, interaction by above-mentioned cam path and this projection, make forcibly above-mentioned ratchet towards the centre of gyration side shifting of above-mentioned cam, make the external tooth of above-mentioned ratchet from the internal tooth disengaging of above-mentioned ratchet wheel plate.
In the present invention, the power by both contact site effects is applied to ratchet thickness of slab direction central portion from the projection of release board at the cam path of ratchet.For this reason, the occasion of the latch-release operation of leaving from the internal tooth of ratchet wheel plate at the external tooth that makes release board revolution, makes ratchet does not make the moment of the direction that ratchet tilts towards the thickness of slab direction.
The invention of technical scheme 2 also has such feature on the basis of the tilting gearing of technical scheme 1: be disposed in the external tooth of above-mentioned ratchet in broad ways, the external tooth that is disposed at central portion is made of such profile of tooth, and this profile of tooth is compared the profile of tooth of the external tooth that is disposed at both ends and carried out negative transposition (translocation position).
In the present invention, being disposed at the profile of tooth that the external tooth of width (pitch circle direction) central portion of ratchet carried out negative transposition by the profile of tooth of comparing the external tooth that is disposed at both ends consists of, so, be disposed at the transverse tooth thickness attenuation of external tooth on the pitch circle of external tooth at both ends, that be disposed at central portion, be disposed at the external tooth of ratchet central portion and can be not do not mesh interferingly with the internal tooth of ratchet wheel plate.Like this, the external tooth that is disposed at both ends can mesh deeper at the internal tooth of when locking and ratchet wheel plate, does not produce the gap at the external tooth that is disposed at both ends and interior between cog.Like this, under the lock-out state that meshes securely at both ends, even from the ratchet wheel plate side by its internal tooth at the ratchet service load, also can reduce the inclination of ratchet, mesh volume is reduced a lot.
The invention of technical scheme 3 also has such feature on the basis of the tilting gearing of technical scheme 1: in order to improve the intensity of direction protrusion, the rear side of the direction protrusion on substrate does not form recess.
The invention of technical scheme 4 also has such feature on the basis of the tilting gearing of technical scheme 1: be provided with inclined cam surface and bearing-surface at above-mentioned cam; This inclined cam surface is when the revolution of above-mentioned cam, and the rear end face of the above-mentioned ratchet of pushing makes the external tooth of above-mentioned ratchet be engaged to the internal tooth of above-mentioned ratchet wheel plate; This bearing-surface be positioned at this inclined cam surface, make the front side of the rotating direction of above-mentioned cam and the either party at least of rear side by above-mentioned force application mechanism, and, when the internal tooth engagement of the external tooth of above-mentioned ratchet and above-mentioned ratchet wheel plate and the rear end face end of above-mentioned ratchet in opposite directions, the rear end face end of supporting above-mentioned ratchet when from above-mentioned ratchet wheel plate, the load of gyratory directions being put on above-mentioned ratchet; Above-mentioned bearing-surface is made of the 1st inclined plane that tilts towards the direction identical with above-mentioned inclined cam surface and the 2nd inclined plane that tilts towards the direction opposite with above-mentioned inclined cam surface, is provided with the 1st teat that can contact with above-mentioned the 1st inclined plane and the 2nd teat that can contact with above-mentioned the 2nd inclined plane in the rear end face end of above-mentioned ratchet.
In the present invention, the cam that is subject to the power of force application mechanism is engaged in the direction revolution of the internal tooth of ratchet wheel plate towards the external tooth of ratchet.Like this, the rear end face of the inclined cam surface of cam pushing ratchet, ratchet is towards making its external tooth be engaged in the moving radially of internal tooth of ratchet wheel plate.When this ratchet moves, the 1st teat as a ratchet part also moves in the same direction, leave from the centre of gyration of cam, but when watching the 1st inclined plane of cam from the 1st teat of ratchet, the 1st teat of ratchet is caught up with on the 1st inclined plane of cam corresponding to the revolution of cam.For this reason, can avoid the gap on the 1st inclined plane of the 1st teat of ratchet and cam excessively to increase.
When the locking of the internal tooth engagement of the external tooth of ratchet and ratchet wheel plate, apply load from ratchet wheel plate at ratchet as the collision of vehicle etc., ratchet tilts, and its 1st teat is contacted with the 1st inclined plane of cam, and its 2nd teat is contacted with the 2nd inclined plane of cam.Therefore, by the inclined cam surface and the 1st of cam, the 2nd inclined plane totally 3 ratchet is supported.
From ratchet wheel plate, load is put on the occasion of ratchet, at the contact-making surface of the 1st teat of the 1st inclined plane of cam and ratchet, contact is being acted on common normal direction at this contact-making surface.Therefore, by arrange towards with the 1st inclined plane of inclined cam surface inclined, thereby will also act on cam towards the component that the direction that unlocks pushes back cam.
On the other hand, the 2nd inclined plane that tilts towards the direction opposite with inclined cam surface is set at cam, the contact-making surface at the 2nd teat of the 2nd inclined plane of cam and ratchet will make cam act on cam towards the rotating component of locking direction.Therefore, that the 1st inclined plane produces by arranging, as will to push back cam towards latch-release direction power does not reach latch-release by because the rightabout power that the existence on the 2nd inclined plane produces is eliminated or reduced.
Although during locking, the 2nd inclined plane may not contact with the 2nd teat yet, even in this occasion cam counter-rotating, when the 2nd teat of ratchet contacted with the 2nd inclined plane of cam, cam also stopped.This is because when the 2nd teat of ratchet contacts with the 2nd inclined plane of cam, due to the existence on the 2nd inclined plane, make cam towards the rotating component of locking direction.
The invention of technical scheme 5 also has such feature on the basis of the tilting gearing of technical scheme 4: select the shape of inclined cam surface of above-mentioned cam and the shape on the 1st inclined plane, (necessarily) unified in the front and back of the position of engagement of the internal tooth of the external tooth of above-mentioned ratchet and above-mentioned ratchet wheel plate in the 1st inclined plane that makes above-mentioned cam and the gap of the 1st teat of above-mentioned ratchet.
The invention of technical scheme 6 also has such feature on the basis of the tilting gearing of technical scheme 1: as the external tooth that makes above-mentioned ratchet makes above-mentioned cam turn round from the internal tooth of above-mentioned ratchet wheel plate with breaking away from, the ratchet confined planes of above-mentioned ratchet that is recovered to the centre of gyration side of above-mentioned cam is contacted with the cam confined planes of above-mentioned cam, forbids that above-mentioned cam further turns round.
In the present invention, usually make the cam revolution by the power of force application mechanism, the rear end face of pushing ratchet makes the external tooth of ratchet be engaged in the internal tooth of ratchet wheel plate, becomes the relative rotating lock-out state of forbidding substrate and ratchet wheel plate.
, make the operating axis revolution as the power of revolting force application mechanism here, make the revolution of cam and release board, release board makes ratchet towards the centre of gyration side shifting of cam forcibly, and the external tooth of ratchet breaks away from from the internal tooth of ratchet wheel plate, removes the locking of tilting gearing.
When cam further turned round, the cam confined planes of cam was contacted with the ratchet confined planes of ratchet, forbids the revolution of further cam, i.e. the revolution of operating axis.
The invention of technical scheme 7 also has such feature on the basis of the tilting gearing of technical scheme 1: be provided with at the outer peripheral face of aforesaid operations axle parallel with the rotary middle spindle of aforesaid operations axle the 1st ' the plane; Be provided with through hole at above-mentioned cam, have at this through hole and insert with gap the aforesaid operations axle, and form 1st plane parallel with the rotary middle spindle of above-mentioned cam at inner peripheral surface; At the inner peripheral surface of the through hole of above-mentioned cam and there is configuration elastic force generation member between the outer peripheral face of the aforesaid operations axle that inserts in gap above-mentioned through hole, this elastic force generation member is crimped on the inner peripheral surface of above-mentioned through hole and the outer peripheral face of aforesaid operations axle, make the 1st of the 1st plane of through hole of above-mentioned cam and aforesaid operations axle ' plane contact.
The invention of technical scheme 8 also has such feature on the basis of the tilting gearing of technical scheme 7: above-mentioned elastic force generation member is made of maintaining part and elastic force generating unit; This maintaining part be installed on the aforesaid operations axle outer peripheral face, with the inner peripheral surface part in opposite directions of the through hole of above-mentioned cam beyond the position; This elastic force generating unit is connected with in this maintaining part, is crimped on the inner peripheral surface of through hole of above-mentioned cam and the outer peripheral face of aforesaid operations axle.
The invention of technical scheme 9 also has such feature on the basis of the tilting gearing of technical scheme 8: the cross sectional shape of the through hole of above-mentioned cam for form at inner peripheral surface above-mentioned the 1st plane and with the ellipse on the 1st parallel plane the 2nd plane, the cross sectional shape of aforesaid operations axle for form at outer peripheral face above-mentioned the 1st ' plane and with the ellipse on the 1st ' parallel plane the 2nd ' plane; In addition, form along the 1st groove of the rotary middle spindle of above-mentioned cam on above-mentioned the 1st plane of above-mentioned cam, form along the 2nd groove of the rotary middle spindle of above-mentioned cam on above-mentioned the 2nd plane; In addition, the maintaining part of above-mentioned elastic force generation member by base portion, the 1st pressure contact portion, and the 2nd pressure contact portion consist of; This base surface to the aforesaid operations axle the 1st ' plane and the 2nd ' interplanar side face in opposite directions; The 1st pressure contact portion is connected with the square end section in this base portion, is crimped on the 1st ' plane of aforesaid operations axle; The 2nd pressure contact portion is connected with in the opposing party's of above-mentioned base portion end, is crimped on the 2nd ' plane of aforesaid operations axle; In addition, be provided with the 1st direction protrusion section at above-mentioned the 1st pressure contact portion, the 1st direction protrusion section inserts above-mentioned the 1st groove, has the shape that the width in above-mentioned the 1st well width direction is narrowed down gradually towards front end; Be provided with the 2nd direction protrusion section and elastic portion at above-mentioned the 2nd pressure contact portion; The 2nd direction protrusion section inserts above-mentioned the 2nd groove under the state on the 2nd ' plane that is crimped on the aforesaid operations axle, have the shape that the width in above-mentioned the 2nd well width direction is narrowed down gradually towards front end; This elastic portion is inserted above-mentioned the 2nd groove, is crimped on the bottom surface of above-mentioned the 2nd groove, with the co-operating of above-mentioned the 2nd direction protrusion section, makes the 1st plane of through hole of above-mentioned cam and the 1st ' plane contact of aforesaid operations axle.
The effect of invention
According to the invention of technical scheme 1, when carrying out the latch-release operation, do not occur in the moment that the thickness of slab direction makes the direction of ratchet inclination, the latch-release operation sense is good.In addition, because cam and direction protrusion are not interfered, so, do not need to reduce direction protrusion, also can guarantee the intensity of direction protrusion.
According to the invention of technical scheme 2, be disposed at the external tooth of ratchet central portion and can be not do not mesh interferingly with the internal tooth of ratchet wheel plate, result, the external tooth that is disposed at both ends can mesh deeper with the internal tooth of ratchet wheel plate when locking, does not produce the gap between the two.Therefore, under this lock-out state, mesh securely at both ends, even apply load by this internal tooth at ratchet from the ratchet wheel plate side, also can reduce the inclination of ratchet, and mesh volume can significantly not reduce, and can stably obtain high locking intensity.
According to the invention of technical scheme 3, the rear side of the direction protrusion on substrate does not form recess, so the intensity of direction protrusion is high, result does not have the distortion of direction protrusion etc., so the inclination of ratchet is little, can stably obtain high locking intensity.
Invention according to technical scheme 4, when ratchet moves towards locking direction, the 1st teat as a ratchet part also moves in the same direction, leave from the centre of gyration of cam, but when watching the 1st inclined plane of cam from the 1st teat of ratchet, the 1st inclined plane of cam catch up with corresponding to the revolution of cam ratchet the 1st teat approach, so, can avoid the gap on the 1st inclined plane of the 1st teat of ratchet and cam excessively to become large.Therefore, locking intensity can significantly not descend, and can stably obtain high locking intensity.
In addition, from ratchet wheel plate, load is being put on the occasion of ratchet, cam is also acted on cam towards the component that the latch-release direction pushes back, but also be provided with the 2nd inclined plane that tilts towards the direction opposite with inclined cam surface at cam, like this, make cam also act on cam towards the rotating component of locking direction.Therefore, rightabout power that the 1st inclined plane produces by arranging, that the power that cam pushes back towards the latch-release direction will be produced by the existence because of the 2nd inclined plane is eliminated or reduces, and does not reach latch-release, also can obtain high locking intensity from this point.
Invention according to technical scheme 5, front and back in the position of engagement of the internal tooth of the external tooth of ratchet and ratchet wheel plate, because the gap of the 1st teat of the 1st inclined plane of cam and ratchet is unified, so, even component tolerance makes the position of engagement from regular target location skew, locking intensity can not produce large change yet.
Invention according to technical scheme 6, form cam confined planes and ratchet confined planes at above-mentioned cam and above-mentioned ratchet, this cam confined planes and ratchet confined planes contact when the internal tooth of above-mentioned ratchet wheel plate breaks away from the external tooth of above-mentioned ratchet, forbid that above-mentioned cam further turns round, like this, the latch-release action cam confined planes by the cam ratchet confined planes that is contacted with ratchet finishes.The operating physical force of latch-release is delivered to cam from operating axis.Therefore, the rotating deviating cause of the operating axis during latch-release only becomes the gap of operating axis and cam, compares existing tilting gearing, and the operational stroke when making the rotating angle latch-release of operating axis during latch-release reduces.
In addition, the substrate of the direction protrusion that be provided with cam, ratchet, ratchet is guided is set as high strength, makes tilting gearing have enough locking intensity under lock-out state.The ratchet confined planes that the latch-release action cam confined planes by cam is contacted with ratchet finishes.Therefore, even be large latch-release operating physical force, because high-intensity cam contacts with ratchet, so, not needing high-intensity relieving mechanism yet, cost is low.
Invention according to technical scheme 7, through hole at cam forms the 1st plane, form the 1st ' plane at operating axis, and, setting makes the elastic force generation member of two plane contact, so, can make the rotary middle spindle of operating axis consistent with the rotary middle spindle of cam, the impression the during operation that improves tilting gearing.
Invention according to technical scheme 8, at above-mentioned elastic force generation member, maintaining part is set, this maintaining part be installed on the aforesaid operations axle outer peripheral face, with the through hole inner peripheral surface part in opposite directions of above-mentioned cam beyond the position, like this, when assembling elastic force generation member, at first maintaining part is remained in operating axis temporarily, then, elastic force generation member is moved along the rotary middle spindle of operating axis, thereby can easily the elastic force generating unit be inserted between the outer peripheral face of the inner peripheral surface of through hole and aforesaid operations axle.
Invention according to technical scheme 9, maintaining part with elastic force generation member remains in operating axis temporarily at first, then, and when elastic force generation member is moved along operating axis, the 1st guide part of the 1st pressure contact portion is inserted into the 1st groove, and the 2nd guide part of the 2nd pressure contact portion is inserted into the 2nd groove.The 1st guide part, the 2nd guide part are the shape that the width width at the 1st groove, the 2nd groove is narrowed down gradually towards front end, so, during side wall surface sliding-contact when the 1st guide part, the 2nd guide part at the 1st groove, the 2nd groove, the power that the base portion that makes maintaining part in the effect of elastic force generation member moves towards the outer peripheral face direction of operating axis.
Be contacted with the outer peripheral face of operating axis by the base portion of maintaining part, thereby become the location direction that is parallel to above-mentioned the 1st plane, above-mentioned cam and operating axis on the plane parallel with the plane of rotation of cam.
In the present invention, become the location direction that is parallel to above-mentioned the 1st plane, above-mentioned cam and operating axis on the plane parallel with the plane of rotation of cam.That is, can make the rotary middle spindle of operating axis consistent with the rotary middle spindle of cam, the impression the during operation that further improves tilting gearing.
Description of drawings
Fig. 1 is the part sectioned view of existing tilting gearing.
Fig. 2 is the sectional view of the cut-out line II-II of Fig. 1.
Fig. 3 is the sectional view of the cut-out line III-III of Fig. 2.
Fig. 4 is the figure that another existing example is shown.
Fig. 5 is the figure that the outward appearance of the present invention's the 1st form example is shown.
Fig. 6 is the sectional view of the cut-out line VI-VI of Fig. 5.
Fig. 7 is the back view of Fig. 5.
Fig. 8 is the sectional view of the cut-out line VIII-VIII of Fig. 5.
Fig. 9 is the sectional view of the cut-out line IX-IX of Fig. 6.
Figure 10 is the figure that removes release board of Fig. 9.
Figure 11 wants section's enlarged drawing in Figure 10.
Figure 12 is the details drawing of the ratchet in Figure 10.
Figure 13 is the sectional view of direction protrusion.
Figure 14 is the schematic diagram of the operating axis peripheral construction of the present invention's the 2nd form example.
Figure 15 is the decomposition diagram that the operating axis periphery of the present invention's the 2nd form example is shown.
Figure 16 is the figure that the outward appearance of the present invention's the 2nd form example is shown.
Figure 17 is the sectional view of the cut-out line XVII-XVII of Fig. 6.
Figure 18 is the back view of Figure 16.
Figure 19 is the sectional view of the cut-out line XIX-XIX of Figure 16.
Figure 20 is the sectional view of the cut-out line XX-XX of Figure 17.
Figure 21 is the figure that removes release board of Figure 20.
Figure 22 (A) is front elevation for the figure of explanation release board, is (B) left surface figure, is (C) right hand view, is (D) top figure.
Symbol description
100 substrates
120 operating axis
130 ratchet wheel plates
133 internal tooths
140,150 ratchets
141,151 external tooths
144,154 cam paths
180 release boards
183,184 projections
The specific embodiment
The 1st form example
Below with reference to Fig. 5～Figure 13, form of implementation example of the present invention is described.At first, as shown in Figure 6, in the tilting gearing of this form example, substrate 100 is installed on the underarm 201 of vehicle seat cushion pad side, at the upper arm 202 of back side, ratchet wheel plate 130 is installed.
As Fig. 5～as shown in Figure 8, the chimeric discoideus ratchet wheel plate 130 of relatively discoideus substrate 100, thereby can be relatively pivotally overlapping both.The installation fitting 205 of tubular wraps into substrate 100 and ratchet wheel plate 130 from the outside, forbid that ratchet wheel plate 130 leaves from substrate 100.Specifically, an end engaging of installation fitting 205 is in the outer peripheral portion of substrate 100, and another distolateral ratchet wheel plate maintaining part 205a is from centre of gyration direction of principal axis pushing ratchet wheel plate 130.
Position on the rotary middle spindle of substrate 100 and ratchet wheel plate 130 forms hole 101, hole 131, operating axis 120 is inserted led to these holes 101, hole 131.At ratchet wheel plate 130 and forward surface substrate 100, as Fig. 6 and as shown in Figure 8, form the recess 132 of the circle centered by operating axis 120, and carve at the internal perisporium of this recess 132 and establish internal tooth 133.
On substrate 100, with the forward surface of the recess 132 of ratchet wheel plate 130, also as Fig. 6 and as shown in Figure 8, form recess 104, as shown in Figure 9, project a pair of direction protrusion 105,106 and a pair of direction protrusion 107,108 in the bottom surface of this recess 104 towards ratchet wheel plate 130.
The substrate 100 of this form example forms by forging.As not using forging, but use common stamping from sheet material manufacturing substrate 100, as shown in Figure 13 (A), at direction protrusion 105,106, the residual recess 100H that is produced by stamping die (formpiston) of 107 and 108 dorsal part, produce thin-walled portion SL at direction protrusion 105,106,107 and 108, direction protrusion 105,106,107 and 108 intensity descend.
In this form example, use to forge and make substrate 100, at this moment, as shown in Figure 13 (B), not the direction protrusion on substrate 100 105,106, and 108 rear side form recess, in other words, with direction protrusion 105,106, and 108 form solid shape, and make the wall thickness of its peripheral part enough large, thereby improve direction protrusion 105,106, and 108 intensity.
Here, explanation ratchet 140,150 external tooth 141,151 as an example of external tooth 151 example.As shown in Figure 12, at ratchet 150, the external tooth 151 (151A) that is disposed at width central portion Lc has been carried out the profile of tooth formation of negative transposition by the profile of tooth of comparing the external tooth 151 (151B, 151C) that is disposed at both ends Ls1, Ls2.For this reason, relatively the transverse tooth thickness of the transverse tooth thickness of external tooth 151B, the 151C on the pitch circle of external tooth 151B, 151C and external tooth 151A as can be known, the transverse tooth thickness of external tooth 151A that is disposed at central portion Lc is thinner, this external tooth 151A can be not mesh interferingly with the internal tooth 133 of ratchet wheel plate 130.By reducing the transverse tooth thickness of external tooth 151A, thereby make the external tooth 151B, the 151C that are disposed at both ends Ls1, Ls2 can meshs deeper with the internal tooth 133 of ratchet wheel plate 130 when locking, in 133 of external tooth 151B, 151C and internal tooths generation gap.
The quantity that is disposed at external tooth 151B, the 151C of both ends Ls1, Ls2 is for example about 3 teeth, and the quantity that is disposed at the external tooth 151A of central portion Lc is for example about 19 teeth.At the bottom of the mild connection teeth in external tooth bonding part of both ends Ls1, Ls2 and central portion Lc, ground forms.In addition, the O1 in Figure 12 is the center of the pitch circle of external tooth 151B, 151C.
The configuration of the space of ratchet 140,150 rear end face 146,156 sides can be together with operating axis 120 rotating cam 170.That is, at the pars intermedia of operating axis 120 as shown in Figure 6, form elliptic cross-section part 123, this elliptic cross-section part 123 is matched with the elliptical aperture 171 of cam 170.Like this, operating axis 120 and the chimeric one-tenth of cam 170 can not relative rotating states, and cam 170 turns round together with operating axis 120.
Ratchet 140,150 and cam 170 form identical thickness of slab, and, be configured on the same level of substrate 100.Be provided with inclined cam surface 174b, 175b at cam 170, this inclined cam surface 174b, 175b are used for when the revolution of cam 170 pushing ratchet 140,150 rear end face 146,156, make ratchet 140,150 external tooth 141,151 be engaged to the internal tooth 133 of ratchet wheel plate 130.In order to bring into play this function, the incline direction of inclined cam surface 174b, 175b is set as such direction, namely, at cam 170 towards the rotating occasion of when locking gyratory directions, inclined cam surface 174b, 175b and ratchet 140,150 rear end face 146,156 contact point are left from the centre of gyration O of cam 170, for example, when the inclined cam surface 175b about Figure 11 illustrates, become the curve or the straight line that rise towards the upper right.
In addition, be provided with teat 174g, 175g at cam 170, the front side of gyratory directions (counter clockwise direction of Figure 10) when this teat 174g, 175g are in cam 170 locking of this inclined cam surface 174b, 175b, and when being formed on ratchet 140,150 external tooth 141,151 with internal tooth 133 engagement of ratchet wheel plate 130 across gap and ratchet 140,150 rear end face 146,156 end (front part of gyratory directions when cam 170 locks) bearing- surface 174a, 175a in opposite directions.From ratchet wheel plate 130, the anticlockwise load of Figure 10 is being put on ratchet 140, at 150 o'clock, this bearing- surface 174a, 175a are contacted with ratchet 140,150 rear end face 146,156 end, it is supported, forbid further ratchet 140,150 inclination.
In addition, be provided with bearing- surface 174c, 175c at cam 170, the rear side of gyratory directions when this bearing- surface 174c, 175c are in cam 170 locking of this inclined cam surface 174b, 175b, and when being formed on ratchet 140,150 external tooth 141,151 with internal tooth 133 engagement of ratchet wheel plate 130 and ratchet 140,150 rear end face 146,156 end (rear section of gyratory directions when cam 170 locks) bearing- surface 174c, 175c in opposite directions.This bearing- surface 174c, 175c are putting on ratchet 140, from ratchet wheel plate 130 at 150 o'clock with the clockwise load of Figure 10, be contacted with ratchet 140,150 rear end face 146,156 end, it is supported, forbid ratchet 140,150 further inclination.
The detailed structure of bearing- surface 174a, 174c, 175a, 175c and periphery thereof is described as an example of bearing-surface 175a example with reference to Figure 11.Bearing-surface 175a is made of the 1st inclined plane 175e of the length L 1 that tilts towards the direction identical with inclined cam surface 175b and the 2nd inclined plane 175f of the length L 2 that tilts towards the direction opposite with inclined cam surface 175b, is provided with the 1st teat 150e that can be contacted with the 1st inclined plane 175e and the 2nd teat 150f that can be contacted with the 2nd inclined plane 175f in the end of the rear end face 156 of ratchet 150.
Below, the concrete example of the 1st inclined plane 175e and the 2nd inclined plane 175f is described.The position that the 1st inclined plane 175e makes gyratory directions when locking the distance of the centre of gyration of this position and cam 170 more forms its outer peripheral face with diminishing.On the contrary, the 2nd inclined plane 175f form make gyratory directions when locking the position the distance of the centre of gyration of this position and cam 170 more become the earth and form its outer peripheral face.
Therefore, using during part boundary point N, circular arc C T radius R by the 1st inclined plane 175e and the 2nd inclined plane 175f forms the example of the 1st inclined plane 175e and the 2nd inclined plane 175f, the 1st inclined plane 175e of boundary point N upside becomes the inclined plane of the state (warpage state) that circular arc C T is counterclockwise tilted, and the 2nd inclined plane 175f of boundary point N downside becomes the inclined plane of the state (warpage state) that circular arc is tilted toward the clockwise direction.Bearing- surface 174a, 174c and 175c beyond bearing-surface 175a also arrange the 1st inclined plane and the 2nd inclined plane by same configuration.
Form cam confined planes 174h, 175h at the inclined cam surface 174b of teat 174g, the 175g of cam 170, the sidepiece of 175b side.On the other hand, form the ratchet 140 of inclined cam surface 174b, the 175b pushing of cams 170,150 rear end face 146,156 at teat 145,155, form ratchet confined planes 145a, the 155a that can contact with cam confined planes 174h, 175h at teat 145,155 sidepiece.
These cam confined planes 174h, 175h, ratchet confined planes 145a, 155a are in ratchet 140,150 external tooth 141, contact when 151 internal tooths 133 from ratchet wheel plate 130 break away from.With ratchet confined planes 145a, when 155a contacts, forbid the further revolution of cam 170 as cam confined planes 174h, 175h.
Face in ratchet 140,150 ratchet wheel plate 130 sides forms cam path 144,154 (in this form example, cam path 144,154 becomes the hole of the face that penetrates into substrate 100 sides).In addition, consist of relieving mechanism release board 180 a side face and ratchet 140,150 and cam 170 overlapping, the opposing party's face sliding-contact configures in ratchet wheel plate 130 ground.Central portion at release board 180 wears for the hole 181 of inserting logical operating axis 120.
Such as shown in Figure 9 and Figure 10, form at cam 170 projection 176,177 that is projected into ratchet wheel plate 130 sides, this projection 176,177 is fitted to the edge part in the hole 181 that is formed at release board 180, the little slotted hole 182,183 that court radially extends.For this reason, cam 170 turns round linkedly with release board 180.
In addition, as Fig. 6 and as shown in Figure 9, join cam path 144,154 projection 183,184 in the revolution end of release board 180 to by the formation such as stamping.Cam path 144,154 shape make when release board 180 during towards the clockwise direction revolution of Fig. 9, by cam path 144,154 and projection 183,184 interaction make forcibly ratchet 140,150 centre of gyration side shiftings towards cam 170.
Such as shown in Figure 9 and Figure 10, the hook 111,112 that is suspended to substrate 100 as the helical spring 191 of force application mechanism, the inner of 195 is fixed, the outer end is suspended to the stage portion 178,179 of cam 170 and is fixed, so cam 170 pushing ratchets 140,150 rear end face 146,156 ground turn round the application of force to cam 170.
The following describes the start of the tilting gearing of above-mentioned formation.Under lock-out state, make cam 170 pushing ratchets 140,150 rear end face 146,156 by helical spring 191,195 elastic force, make ratchet 140,150 external tooth 141,151 be in the state of the internal tooth 133 that is engaged in ratchet wheel plate 130, forbid the revolution of ratchet wheel plate (chair back) 130.
The following describes the action when shifting to this lock-out state.The cam 170 that is subject to helical spring 191,195 elastic force is first towards making ratchet 140,150 external tooth 141,151 be engaged in the direction revolution of the internal tooth 133 of ratchet wheel plate 130.Like this, inclined cam surface 174b, the 175b of cam 170 pushing ratchet 140,150 rear end face 146,156, ratchet 140,150 is engaged in the moving radially of internal tooth 133 of ratchet wheel plate 130 towards its external tooth 141,151.
Bearing-surface 175a periphery take cam 170 illustrates the action of this moment as example.When ratchet 150 moves, the 1st teat 150e as the part of ratchet 150 also moves in the same direction, leave from the centre of gyration O of cam 170, but when the 1st teat 150e from ratchet 150 watches the 1st inclined plane 175e of cam 170, corresponding to the revolution of cam 170, the 1st inclined plane 175e of cam 170 catch up with ratchet 150 the 1st teat 150e approach.
For this reason, can avoid the gap of the 1st inclined plane 175e of the 1st teat 150e of ratchet 150 and cam 170 to become excessive when locking.Therefore, locking intensity can not descend a lot, can stably obtain high locking intensity.
Under the lock-out state of the external tooth 151 of ratchet 150 and internal tooth 133 engagements of ratchet wheel plate 130, make from ratchet wheel plate 130 as collision of vehicle etc. and apply load at ratchet 150, ratchet 150 tilts, its the 1st teat 150e is contacted with the 1st inclined plane 175e of cam 170, and its 2nd teat 150f is contacted with the 2nd inclined plane 175f of cam 170.Therefore, by the inclined cam surface 175b and the 1st of cam 170, the 2nd inclined plane 175e, 175f totally 3 supporting ratchets 150.
From ratchet wheel plate 130, load is being put on the occasion of ratchet 150, at the contact-making surface of the 1st teat 150e of the 1st inclined plane 175e of cam 170 and ratchet 150, contact acts on the common normal direction of this contact-making surface.Therefore, by arrange towards with the 1st inclined plane 175e of inclined cam surface 175b inclined, thereby will also act on cam 170 towards the component F1 (producing the power of the clockwise torque of Figure 11) that the latch-release direction pushes back cam 170.
On the other hand, be provided with towards the 2nd inclined plane 175f that tilts with inclined cam surface 175b rightabout at cam 170, contact-making surface at the 2nd teat 150f of the 2nd inclined plane 175f of cam 170 and ratchet 150 will make cam 170 also act on cam 170 towards the rotating component F2 of locking direction (producing the power of the anticlockwise torque of Figure 11).Therefore, the rightabout power F2 that component F1 that the 1st inclined plane 175e produces by arranging, push back cam 170 towards the latch-release direction is produced by the existence because of the 2nd inclined plane 175f eliminates or reduces, do not reach latch-release, can obtain high locking intensity from this point yet.
During locking, also may there be the 2nd discontiguous occasion of teat 150f of the 2nd inclined plane 175f and the ratchet 150 of cam 170, but in this occasion, even cam 170 counter-rotatings, in the moment that the 2nd teat 150f of ratchet 150 contacts with the 2nd inclined plane 175f of cam 170, cam 170 stops.This is because in the moment that the 2nd teat 150f of ratchet 150 contacts with the 2nd inclined plane 175f of cam 170, due to the existence of the 2nd inclined plane 175f, generation makes cam 170 towards the rotating component F2 of locking direction.
under lock-out state, as revolt helical spring 191, 195 elastic force makes operating axis 120 revolution toward the clockwise direction in Figure 10, cam 170 is revolution toward the clockwise direction also, remove the ratchet 140 of cam 170, 150 at rear end face 146, 156 pushing, and, the projection 183 of release board 180, 184 sliding-contacts are in ratchet 140, 150 cam path 144, 154 inclined wall, ratchet 140, 150 external tooth 141, 151 directions of leaving from the internal tooth 133 of ratchet wheel plate 130 retreat, remove ratchet 140, 150 external tooth 141, 151 with the engagement of the internal tooth 133 of ratchet wheel plate 130, ratchet wheel plate (chair back) 130 becomes the state (latch-release state) that can fascinate.
This latch-release action contacts and finishes with ratchet confined planes 145a, 155a by cam confined planes 174h, 175h.
As make the chair back desired angle of fascinating, releasing is at the operating physical force of operating axis 120, make cam 170 pushing ratchets 140,150 rear end face 146,156 by helical spring 191,195 elastic force, ratchet 140,150 external tooth 141,151 are engaged to the internal tooth 133 of ratchet wheel plate 130 again, forbid the rotating state of ratchet wheel plate (chair back) 130.
Form example according to such can obtain following such effect.
(1) in this form example, be used for the thickness of slab direction central portion of ratchet from the projection of release board by the masterpiece of both contact site effects at the cam path of ratchet.For this reason, when the latch-release operation that the external tooth that makes release board revolution, makes ratchet leaves from the internal tooth of ratchet wheel plate, do not produce the moment that makes the direction that ratchet tilts towards the thickness of slab direction.Therefore, do not make the power of the direction that ratchet 140,150 floats from ratchet wheel plate 130, so the latch-release operation sense is good.In addition, because cam and direction protrusion do not interfere, so, not needing to reduce direction protrusion, the intensity of direction protrusion also can be guaranteed.
(2) in this form example, owing to will be integrally formed at release board 180 as the projection 183,184 at cam path 144,154 junction surface, so, can make the formation of this part simple, and, can be by the stamping release board that is shaped at an easy rate, so, but the cost of implement device.
(3) being disposed at the external tooth 141,151 of ratchet 140,150 central portion can be not mesh interferingly with the internal tooth 133 of ratchet wheel plate 130, result, the external tooth 141,151 that is disposed at both ends the time can mesh with the internal tooth 133 of ratchet wheel plate 130 deeper in locking, the external tooth 141 that is disposed at both ends, 151 and 133 of internal tooths do not produce the gap.Meshing securely under the lock-out state at both ends like this, even by its internal tooth 133, load is acted on ratchet 140,150 from ratchet wheel plate 130 sides, ratchet 140,150 also is difficult to tilt, and can reduce its inclination, little amplitude reduces mesh volume, can stably obtain high locking intensity.
(4) because the direction protrusion on substrate 100 105,106 not, 107 and 108 rear side form recess, in other words, direction protrusion 105,106,107 and 108 is formed solid shape, so, can improve direction protrusion 105,106,107 and 108 intensity, result does not produce direction protrusion 105,106,107 and 108 distortion, breakage, ratchet 140,150 also is difficult to tilt, and can improve locking intensity.
(5) in this form example, can avoid the gap on the 1st inclined plane of ratchet 140,150 the 1st teat and cam 170 to become excessive.Therefore, locking intensity can significantly not descend, and can stably obtain high locking intensity.In addition, from ratchet wheel plate 130, load is being put on ratchet 140,150 occasion, also act on cam 170 although push back the component of cam 170 towards the latch-release direction, but also be provided with towards the 2nd inclined plane that tilts with the inclined cam surface rightabout at cam 170, like this, make the rotating component of cam 170 also act on cam 170 towards locking direction.Therefore, power that the 1st inclined plane produces by arranging, push back cam 170 towards locking direction does not reach latch-release by because the rightabout power that the existence on the 2nd inclined plane produces is eliminated or reduced, and can obtain high locking intensity from this point yet.
(6) particularly at ratchet 140,150 external tooth 141,151 and the front and back of the position of engagement of the internal tooth 133 of ratchet wheel plate 130, make the gap of the 1st inclined plane 175e of cam 170 and ratchet 140,150 the 1st protuberance set uniformly the shape of bearing-surface (the 1st inclined plane and the 2nd inclined plane) 174a, the 174c of cam 170,175a, 175c, inclined cam surface 174b, 175b, even component tolerance makes the position of engagement from regular target location skew, locking intensity can not produce large change yet.
(7) in this form example, the latch-release action contacts and finishes with ratchet confined planes 145a, 155a by cam confined planes 174h, 175h.The operating physical force of latch-release is delivered to cam 170 from operating axis 120.Therefore, in this form example, the rotating deviating cause of the operating axis 120 during latch-release is only operating axis 120 and the gap of cam 170, compares existing tilting gearing, and the operational stroke during latch-release during the rotating angle latch-release of operating axis 120 diminishes.
(8) cam 170, ratchet 140,150, be provided with the direction protrusion 105,106,107 that ratchet 140,150 is guided, 108 substrate 100 is set as higher intensity, makes tilting gearing have enough locking intensity under lock-out state.Latch-release action cam confined planes 174h, the 175h by cam 170 is contacted with ratchet 140,150 ratchet confined planes 145a, 155a finish.Therefore, even be large latch-release operating physical force, also because the high cam 170 of intensity contacts with ratchet 140,150, so, not needing high-intensity release board (relieving mechanism) 180, cost is low.
The invention is not restricted to above-mentioned form example.For example the shape of the bearing-surface of cam 170 (the 1st inclined plane and the 2nd inclined plane) 174a, 174c, 175a, 175c, inclined cam surface 174b, 175b is not limited to above-mentioned form example.For example, in its shape, inclined cam surface and the 1st inclined plane namely, make the position of gyratory directions when locking as long as form like this shape of outer peripheral face, the distance of the centre of gyration of this position and cam is less, on the contrary, the 2nd inclined plane is as long as form like this outer peripheral face, namely, make the position of gyratory directions when locking, the distance of the centre of gyration of this position and cam is larger.This be because, as the shape be even the position tolerance makes the position of engagement of the internal tooth of the external tooth of ratchet and ratchet wheel plate be offset from regular target location, can prevent that also both gaps from becoming excessive, and, can avoid the counter-rotating of cam 170.
In addition, also can be consisted of like that each bearing- surface 174a, 174c, 175a, the 175c of cam 170 by the 1st inclined plane and the 2nd inclined plane not as above-mentioned form example, but only consist of a part (for example bearing- surface 174a, 175a) by the 1st inclined plane and the 2nd inclined plane, consist of other bearing-surface (for example supporting 174c, 175c) by the bearing-surface with the same shape of prior art.
In addition, also the 1st, the 2nd inclined plane can be set, but the face that is circular arc with peripheral shape is used as bearing- surface 174a, 174c, 175a, 175c, this circular arc is with the centre of gyration of cam 170.In this occasion, the protuberance of ratchet 140,150 sides has one to get final product corresponding to bearing- surface 174a, 174c, 175a, 175c.
In addition, as this form example being installed to the method for vehicle seat, also can ratchet wheel plate 130 be installed in vehicle seat cushion pad side, at back side installation base plate 100.
When ratchet wheel plate 130, substrate 100 are installed on upper arm, underarm, the joint of ratchet wheel plate 130 is embedded in the through hole of upper arm, underarm with the joint of projection 130a, substrate 100 with projection 100a, weld the several of this fitting portion.In this occasion, in order to increase weld strength, increased joint and used the quantity of projection 100a with projection 130a, joint, weld at a plurality of fitting portions.Yet, increasing joint projection 130a, engaging the occasion with projection 100a, the thermal strain of welding sometimes brings harmful effect to apparatus function.For fear of this problem, on ratchet wheel plate 130, substrate 100 not with engage with projection 130a, engage the position of interfering with projection 100a and form the smooth welding protuberance of front end, should weld with protuberance and be contacted with upper arm, underarm, and carry out laser weld in this part and get final product.
In addition, ratchet 140,150 quantity can be 1, also can be more than 3, and the application of force of cam 170 is not limited to utilize above-mentioned helical spring 191,195 method.
The 2nd form example
At first, Figure 14 illustrates the schematic diagram of the characteristic of relative the 1st form example.Form the through hole 505 with 1st plane 503 parallel with the rotary middle spindle of cam 501 at cam 501.On the other hand, the outer peripheral face at operating axis 511 forms the 1st ' plane 513 parallel with the rotary middle spindle of operating axis 511.
When the outer peripheral face of the inner peripheral surface of the through hole 505 of elastic force generation member 521 crimping cams 501 and operating axis 511, the 1st plane 503 of the through hole 505 of cam 501 contacts with the 1st ' plane 513 of operating axis 511.
In this consists of, as the inner peripheral surface of the through hole 505 of elastic force generation member 521 crimping cams 501 and the outer peripheral face of operating axis 511, the 1st plane 503 of the through hole 505 of cam 501 contacts with the 1st ' plane 513 of operating axis 511, thereby can carry out on the plane parallel with the plane of rotation (paper) of cam 501 and the direction of the 1st plane 503 orthogonals (being the arrow directions X in Figure 14), location cam 501 and operating axis 511.
Owing to carrying out on the plane parallel with the plane of rotation of cam 501 and the direction of the 1st plane 503 orthogonals, location cam 501 and operating axis 511, so feeling during the tilting gearing operation becomes good.As elastic force generation member, such as the leaf spring that consists of for use metal, resin, helical spring, plate etc., but be not limited to this.
The below specifically describes the 2nd form example of the present invention according to Figure 15～Figure 22.In these figure, adopt same-sign in the part corresponding with the 1st form example.At first as shown in Figure 17, in the tilting gearing of this form example, substrate 100 is installed on the underarm 201 of back side, at the upper arm 202 of back side, ratchet wheel plate 130 is installed.
As Figure 16～as shown in Figure 19, by the chimeric discoideus ratchet wheel plate 130 of relatively discoideus substrate 100, thereby make both can be overlapping relatively pivotally.The installation fitting 205 of tubular wraps into substrate 100 and ratchet wheel plate 130 from the outside, forbid that ratchet wheel plate 130 leaves from substrate 100.Specifically, an end engaging of installation fitting 205 is in the outer peripheral portion of substrate 100, and another distolateral ratchet wheel plate maintaining part 205a pushes down ratchet wheel plate 130 from centre of gyration direction of principal axis.
Position on the rotary middle spindle of substrate 100 and ratchet wheel plate 130 forms hole 101, hole 131, operating axis 120 is inserted led to these holes 101, hole 131.At ratchet wheel plate 130 and forward surface substrate 100, as Figure 17 and as shown in Figure 19, form the circular depressions 132 centered by operating axis 120, and, carve at the internal perisporium face of this recess 132 and establish internal tooth 133.
On substrate 100, with the forward surface of the recess 132 of ratchet wheel plate 130, also as Figure 17 with form as shown in Figure 19 recess 104, as shown in Figure 20, project a pair of direction protrusion 105,106 and a pair of direction protrusion 107,108 in the bottom surface of this recess 104 towards ratchet wheel plate 130.
At substrate 100 and faces ratchet wheel plate 130 side opposition sides, will be disposed at same circumference centered by hole 101 with projection 100a be used to a plurality of joints of the underarm 201 that is installed on back side by equal intervals.At ratchet wheel plate 130 and faces opposition sides substrate 100 sides, also will be disposed at same circumference centered by hole 131 with projection 130a be used to a plurality of joints of the upper arm 202 that is installed to back side by equal intervals.
In ratchet 140,150 rear end face 146, the space of 156 sides, configuration can be together with operating axis 120 rotating cam 170.
Use the installation constitution of Figure 15, Figure 22 description operation axle 120 and cam 170 here.Be formed for having update axle 120, hole elliptical cross-sectional shape (through hole) 171 with gap at cam 170.Inner peripheral surface at elliptical aperture 171 forms the 1st plane 171a and with 1st plane 171a parallel 2nd plane 171b parallel with the rotary middle spindle of cam 170.In addition, form along the 1st groove 171c of the rotary middle spindle of cam 170 at the 1st plane 171a of cam 170, form along the 2nd groove 171d of the rotary middle spindle of cam 170 at the 2nd plane 171b.
On the other hand, the cross sectional shape of the pars intermedia of operating axis 120 is oval, forms the 1st ' plane 120a and with 1st ' plane 120a parallel 2nd ' plane 120b parallel with the rotary middle spindle of operating axis 120 at outer peripheral face.In addition, project into outside part in the hole 101 from substrate 100 of operating axis 120, the flange part 120c of the diameter that formation is larger than the diameter in the hole 101 of substrate 100, the anti-delinking part of formation operating axis 120 130 directions from substrate 100 towards ratchet wheel plate.
At the pars intermedia of operating axis 120, be provided with the latch plate 301 as elastic force generation member.In this latch plate 301, substantially be divided into maintaining part 303 and elastic force generating unit 305; This maintaining part 303 be arranged on operating axis 120 outer peripheral face, with the inner peripheral surface part in opposite directions of the elliptical aperture 171 of cam 170 beyond the position; This elastic force generating unit 305 is connected with in maintaining part 303, is crimped on the inner peripheral surface of elliptical aperture 171 of cam 170 and the outer peripheral face of operating axis 120.
Maintaining part 303 by base portion 311, the 1st pressure contact portion 313, and the 2nd pressure contact portion 315 consist of; The 1st ' plane 120a of this base portion 311 and operating axis 120 and the side face 120d between the 120b of the 2nd ' plane are in opposite directions; The 1st pressure contact portion 313 is connected with the square end section in base portion 311, is crimped on the 1st ' plane 120a of operating axis 120; The 2nd pressure contact portion 315 is connected with the opposing party end in base portion 311, is crimped on the 2nd ' plane 120b of operating axis 120.
Be provided with the 1st guide part 321, the 1 guide parts 321 at the 1st pressure contact portion 313 and be inserted into the 1st groove 171c, have the shape that the width on the 1st groove 171c width is narrowed down gradually towards front end, be provided with the 2nd guide part 323 and elastic portion 325 at the 2nd pressure contact portion 315; This guide part 323 is inserted into the 2nd groove 171d by the state of the 2nd ' plane 120b that is crimped on operating axis 120, has the shape that the width on the 2nd groove 171d width is narrowed down gradually towards front end; 180 degree turn back into the base end part side of the 2nd guide part 323 in this spring section 325, be inserted into the 2nd groove 171d, be crimped on the bottom surface of the 2nd groove 171d, with the 2nd guide part 323 co-operatings, the 1st plane 171a of the elliptical aperture 171 of cam 170 contacted with the 1st ' plane 120a of operating axis 120.That is, consist of elastic force generating unit 305 by the 2nd guide part 323 and spring section 325.
Below, the operating axis 120 of this form example and the assemble method of cam 170 are described.At first, have in the elliptical aperture 171 that with gap operating axis 120 is inserted into cam 170.Then, the maintaining part 303 of latch plate 301 is installed on operating axis 120 outer peripheral face, with the elliptical aperture 171 inner peripheral surfaces part in opposite directions of cam 170 beyond the position, keep temporarily.Then, along operating axis 120 mobile spring plates 301, the 1st guide part 321 is inserted into the 1st groove 171c of cam 170, the 2nd guide part 323, spring section 325 (elastic force generating units 305) is inserted into the 2nd groove 171d of cam 170.
When inserting, because the 1st groove 171c, the 2nd groove 171d are the shapes that the width at width narrows down gradually towards front end, so, when the 1st guide part 321, the 2nd guide part 323 sliding-contacts during in the side wall surface of the 1st groove 171c, the 2nd groove 171d, the power that the 1st guide part 321, the 2nd guide part 323 make maintaining part 303 in latch plate 301 effects base portion 311 moves towards the outer peripheral face direction of operating axis 120.
Be contacted with the outer peripheral face of operating axis 120 by the base portion 311 of maintaining part 303, thereby carry out the location direction parallel with the 1st plane 171a, cam 170 and operating axis 120 on the plane parallel with the plane of rotation of cam 170.
In addition, the 2nd guide part 323 of elastic force generating unit 305 meets the 2nd ' plane 120b (outer peripheral face of operating axis 120) of operating axis 120, and spring section 325 connects the bottom surface (inner peripheral surface of the elliptical aperture 171 of cam 170) of the 2nd groove 171d of cam 170.Like this, the 1st plane 171a of the elliptical aperture 171 by cam 170 contacts with the 1st ' plane 120a of operating axis 120, thereby carries out on the plane parallel with the plane of rotation (paper) of cam 170 and the direction (the arrow directions X in Figure 15) of the 1st plane 171a orthogonal, location cam 170 and operating axis 120.
Like this, operating axis 120 and the chimeric one-tenth of cam 170 can not relative rotating states, and cam 170 turns round together with operating axis 120.
Ratchet 140,150 and cam 170 form same thickness of slab, and, be configured on the same plane of substrate 100.Be provided with inclined cam surface 174b, 175b at cam 170, this inclined cam surface 174b, 175b are used for when cam 170 revolution pushing ratchet 140,150 rear end face 146,156, and ratchet 140,150 external tooth 141,151 are meshed with the internal tooth 133 of ratchet wheel plate 130.In order to bring into play this function, the incline direction of inclined cam surface 174b, 175b be set as when cam 170 inclined cam surface 174b, 175b and ratchet 140 during towards the revolution of locking gyratory directions, 150 rear end face 146,156 contact point from the centre of gyration O of cam 170 away from direction.
In addition, be provided with bearing- surface 174a, 175a at cam 170, the front side of gyratory directions (counter clockwise direction of Figure 21) when this bearing- surface 174a, 175a are positioned at cam 170 locking of this inclined cam surface 174b, 175b, and, when ratchet 140,150 external tooth 141,151 and during internal tooth 133 engagement of ratchet wheel plate 130, across gap and ratchet 140,150 rear end face 146,156 end (front part of gyratory directions when cam 170 locks) in opposite directions.This bearing- surface 174a, 175a are putting on ratchet 140, from ratchet wheel plate 130 at 150 o'clock with the anticlockwise load of Figure 21, be contacted with ratchet 140,150 rear end face 146,156 end, it is supported, forbid ratchet 140,150 further inclination.
In addition, be provided with bearing- surface 174c, 175c at cam 170, the rear side of gyratory directions when this bearing- surface 174c, 175c are in cam 170 locking of this inclined cam surface 174b, 175b, and during with internal tooth 133 engagement of ratchet wheel plate 130 and ratchet 140,150 rear end face 146,156 end (rear section of gyratory directions when cam 170 locks) be in opposite directions at ratchet 140,150 external tooth 141,151.This bearing- surface 174c, 175c are putting on ratchet 140, from ratchet wheel plate 130 at 150 o'clock with the clockwise load of Figure 21, be contacted with ratchet 140,150 rear end face 146,156 end, it is supported, forbid further ratchet 140,150 inclination.
Face in ratchet 140,150 ratchet wheel plate 130 sides forms cam path 144,154 (in this form example, cam path 144,154 becomes the hole of the face that penetrates into substrate 100 sides).In addition, consist of relieving mechanism release board 180 a side face and ratchet 140,150 and cam 170 overlapping, the opposing party's face sliding-contact configures in ratchet wheel plate 130 ground.Central portion at release board 180 wears for the hole 181 of inserting logical operating axis 120.
As Figure 20 and as shown in Figure 21, form at cam 170 projection 176,177 that is projected into ratchet wheel plate 130 sides, this projection 176,177 is fitted to the edge part in the hole 181 that is formed at release board 180, towards the little slotted hole 182,183 that radially extends.For this reason, cam 170 turns round linkedly with release board 180.
In addition, as Figure 17 and as shown in Figure 20, join cam path 144,154 projection 183,184 in the revolution end of release board 180 to by the formation such as stamping.Cam path 144,154 shape make when release board 180 during towards the clockwise direction revolution of Figure 20, by cam path 144,154 and projection 183,184 interaction make forcibly ratchet 140,150 centre of gyration side shiftings towards cam 170.
As Figure 20 and as shown in Figure 21, the hook 11,112 that is suspended to substrate 100 as the helical spring 191 of force application mechanism, the inner of 195 is fixed, the outer end is suspended to the stage portion 178,179 of cam 170 and is fixed, and cam 170 pushing ratchets 140,150 rear end face 146,156 ground turn round the application of force to cam 170.
The following describes the start of the tilting gearing of above-mentioned formation.Under lock-out state, make cam 170 pushing ratchets 140,150 rear end face 146,156 by helical spring 191,195 elastic force, make ratchet 140,150 external tooth 141,151 be in the state of the internal tooth 133 that is engaged in ratchet wheel plate 130, forbid the revolution of ratchet wheel plate (chair back) 130.
under lock-out state, as revolt helical spring 191, 195 elastic force makes operating axis 120 revolution toward the clockwise direction in Figure 21, cam 170 is revolution toward the clockwise direction also, remove the ratchet 140 of cam 170, 150 at rear end face 146, 156 pushing, and, the projection 183 of release board 180, 184 sliding-contacts are in ratchet 140, 150 cam path 144, 154 inclined wall, ratchet 140, 150 external tooth 141, 151 directions of leaving towards the internal tooth 133 from ratchet wheel plate 130 retreat, remove ratchet 140, 150 external tooth 141, 151 with the engagement of the internal tooth 133 of ratchet wheel plate 130, ratchet wheel plate (chair back) 130 becomes the state that can fascinate (latch-release state).
As make the chair back desired angle of fascinating, releasing is at the operating physical force of operating axis 120, make cam 170 pushing ratchets 140,150 rear end face 146,156 by helical spring 191,195 elastic force, ratchet 140,150 external tooth 141,151 are engaged to the internal tooth 133 of ratchet wheel plate 130 again, forbid the rotating state of ratchet wheel plate (chair back) 130.
Form example according to such can obtain following such effect.
(1) by the elastic force generating unit of latch plate 301 (the 2nd guide part 323 with spring section 325) 305, the 1st plane 171a of the elliptical aperture 171 of cam 170 is contacted with the 1st ' plane 120a of operating axis 120, thereby can carry out on the plane parallel with the plane of rotation of cam 170 and the direction of the 1st plane 171a orthogonal, location cam 170 and operating axis 120.
The 2nd guide part 323 of elastic force generating unit 305 meets the 2nd ' plane 120b (outer peripheral face of operating axis 120) of operating axis 120, the bottom surface (inner peripheral surface of the elliptical aperture 171 of cam 170) of the 2nd groove 171d of spring section 325 crimping cams 170.Like this, the 1st plane 171a of the elliptical aperture 171 of cam 170 contacts with the 1st ' plane 120a of operating axis 120, thereby carries out on the plane parallel with the plane of rotation (paper) of cam 170 and the direction of the 1st plane 171a orthogonal (being the arrow directions X in Figure 15), location cam 170 and operating axis 120.
That is, can make the rotary middle spindle of operating axis 120 consistent with the rotary middle spindle of cam 170, the sensation when further improving the operation of tilting gearing.
(2) by at latch plate 301, maintaining part 303 being set, thereby the maintaining part 303 with latch plate 301 remains in operating axis 120 temporarily at first, then, latch plate 301 is moved along operating axis, thereby can easily the 1st guide part 321 be inserted into the 1st groove 171c of cam 170, the 2nd guide part 323, spring section 325 (elastic force generating units 305) be easily inserted into the 2nd groove 171d of cam 170.
In the 2nd form example, also can carry out the modification same with the occasion of the 1st form example, the invention is not restricted to the 2nd form example.
Claims (8)
1. tilting gearing has:
Substrate,
This substrate overlapping ratchet wheel plate pivotally relatively,
Be configured in pivotally the operating axis on the rotary middle spindle of this ratchet wheel plate,
At the recess that forms circle with forward surface described substrate centered by described operating axis described ratchet wheel plate,
Be formed at the internal tooth of the internal perisporium face of this recess,
Ratchet, described ratchet are disposed at described recess and are formed with in the front end face side can be from the radially relatively described interior indented joint of outside circle and the external tooth of disengaging,
Be located at described substrate, along the described direction protrusion that radially described ratchet is carried out sliding guidance,
Be disposed at the space of described ratchet rear end face side, turn round together with described operating axis and the cam that can push the rear end face of described ratchet, and
Be engaged to the direction of internal tooth of described ratchet wheel plate towards the external tooth that makes described ratchet to the force application mechanism of the described cam application of force, it is characterized in that also having:
At least towards described ratchet wheel plate side opening be formed at the cam path of described ratchet, this cam path is formed between the rear end face and described external tooth of described ratchet; And
At described ratchet and described cam and the release board that configures pivotally together with described cam between described ratchet wheel plate; This release board turns round the end at it and is provided with the projection that engages with described cam path, described projection and described release board are integrally formed, when the power that applies of the described force application mechanism of resistance makes described operating axis revolution, interaction by described cam path and this projection makes described ratchet towards the centre of gyration side shifting of described cam forcibly, makes the external tooth of described ratchet from the internal tooth disengaging of described ratchet wheel plate;
Be disposed in the external tooth of described ratchet in broad ways, the external tooth that is disposed at central portion is made of such profile of tooth, this profile of tooth is compared the profile of tooth of the external tooth that is disposed at both ends and is born transposition, thereby, be configured in the transverse tooth thickness attenuation of external tooth on the pitch circle of external tooth at both ends, that be configured in central portion.
2. tilting gearing according to claim 1, it is characterized in that: the rear side of the described direction protrusion on described substrate does not form recess.
3. tilting gearing according to claim 1, is characterized in that: be provided with inclined cam surface and bearing-surface on described cam;
This inclined cam surface pushes the rear end face of described ratchet when the revolution of described cam, make the external tooth of described ratchet be engaged to the internal tooth of described ratchet wheel plate;
What this bearing-surface was positioned at this inclined cam surface makes front side on the rotating direction of described cam or the either party at least of rear side by described force application mechanism, and, when the internal tooth engagement of the external tooth of described ratchet and described ratchet wheel plate and the rear end face end of described ratchet in opposite directions, the rear end face end of supporting described ratchet when from described ratchet wheel plate, the load of gyratory directions being put on described ratchet;
Described bearing-surface consists of by the 1st inclined plane that tilts towards the direction identical with described inclined cam surface with towards the 2nd inclined plane that the direction opposite with described inclined cam surface tilts,
Rear end face end at described ratchet is provided with the 1st teat that can contact with described the 1st inclined plane and the 2nd teat that can contact with described the 2nd inclined plane.
4. tilting gearing according to claim 3, it is characterized in that: select the shape of inclined cam surface of described cam and the shape on the 1st inclined plane, the 1st inclined plane that makes described cam and the gap of the 1st teat of described ratchet are unified in the front and back of the position of engagement of the internal tooth of the external tooth of described ratchet and described ratchet wheel plate.
5. tilting gearing according to claim 1, it is characterized in that: when the external tooth that makes described ratchet makes described cam turn round from the internal tooth of described ratchet wheel plate with breaking away from, the ratchet confined planes of described ratchet that is recovered to the centre of gyration side of described cam is contacted with the cam confined planes of described cam, forbids that described cam further turns round.
6. tilting gearing according to claim 1, it is characterized in that: the outer peripheral face at described operating axis is provided with the 1st ' plane parallel with the rotary middle spindle of described operating axis;
Be provided with through hole at described cam, have at this through hole and insert with gap described operating axis, and form 1st plane parallel with the rotary middle spindle of described cam at inner peripheral surface;
At the inner peripheral surface of the through hole of described cam and have between the outer peripheral face of the described operating axis that inserts in gap described through hole and dispose elastic force generation member, this elastic force generation member is crimped on the inner peripheral surface of described through hole and the outer peripheral face of described operating axis, makes the 1st plane of through hole of described cam and the 1st ' plane contact of described operating axis.
7. tilting gearing according to claim 6, it is characterized in that: described elastic force generation member is made of maintaining part and elastic force generating unit;
This maintaining part be installed on described operating axis outer peripheral face, with the inner peripheral surface part in opposite directions of the through hole of described cam beyond the position;
This elastic force generating unit is connected with in this maintaining part, is crimped on the inner peripheral surface of through hole of described cam and the outer peripheral face of described operating axis.
8. tilting gearing according to claim 7 is characterized in that: the cross sectional shape of the through hole of described cam for be formed with at inner peripheral surface described the 1st plane and with the ellipse on the 1st parallel plane the 2nd plane,
The cross sectional shape of described operating axis for be formed with at outer peripheral face described the 1st ' plane and with the ellipse on the 1st ' parallel plane the 2nd ' plane;
In addition, form along the 1st groove of the rotary middle spindle of described cam on described the 1st plane of described cam, form along the 2nd groove of the rotary middle spindle of described cam on described the 2nd plane;
In addition, the maintaining part of described elastic force generation member by base portion, the 1st pressure contact portion, and the 2nd pressure contact portion consist of;
The 1st ' plane of this base portion and described operating axis and the 2nd ' interplanar side face in opposite directions; The 1st pressure contact portion is connected with in a side's of this base portion end, is crimped on the 1st ' plane of described operating axis; The 2nd pressure contact portion is connected with in the opposing party's of described base portion end, is crimped on the 2nd ' plane of described operating axis;
In addition, be provided with the 1st direction protrusion section at described the 1st pressure contact portion, the 1st direction protrusion section inserts described the 1st groove, has the shape that the width in described the 1st well width direction is narrowed down gradually towards front end;
Be provided with the 2nd direction protrusion section and elastic portion at described the 2nd pressure contact portion; The 2nd direction protrusion section inserts described the 2nd groove under the state on the 2nd ' plane that is crimped on described operating axis, have the shape that the width in described the 2nd well width direction is narrowed down gradually towards front end; This elastic portion is inserted described the 2nd groove, is crimped on the bottom surface of described the 2nd groove, with the co-operating of described the 2nd direction protrusion section, makes the 1st plane of through hole of described cam and the 1st ' plane contact of described operating axis.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004316071A JP4777635B2 (en) | 2004-10-29 | 2004-10-29 | Reclining device |
| JP316071/2004 | 2004-10-29 | ||
| JP113716/2005 | 2005-04-11 | ||
| JP113717/2005 | 2005-04-11 | ||
| JP2005113717A JP4763330B2 (en) | 2005-04-11 | 2005-04-11 | Reclining device |
| JP2005113716A JP4824938B2 (en) | 2005-04-11 | 2005-04-11 | Reclining device |
| JP117156/2005 | 2005-04-14 | ||
| JP2005117156A JP4824939B2 (en) | 2005-04-14 | 2005-04-14 | Reclining device |
| JP149174/2005 | 2005-05-23 | ||
| JP2005149174A JP4824945B2 (en) | 2005-05-23 | 2005-05-23 | Reclining device |
| PCT/JP2005/019804 WO2006046653A1 (en) | 2004-10-29 | 2005-10-27 | Reclining device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210363591XA Division CN102897061A (en) | 2004-10-29 | 2005-10-27 | Reclining device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101048091A CN101048091A (en) | 2007-10-03 |
| CN101048091B true CN101048091B (en) | 2013-11-06 |
Family
ID=36717718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580036928.4A Expired - Fee Related CN101048091B (en) | 2004-10-29 | 2005-10-27 | Reclining device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4777635B2 (en) |
| CN (1) | CN101048091B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009072413A (en) | 2007-09-21 | 2009-04-09 | Aisin Seiki Co Ltd | Vehicle seat reclining device |
| JP5125836B2 (en) * | 2008-07-15 | 2013-01-23 | アイシン精機株式会社 | Seat reclining device |
| JP5290789B2 (en) * | 2009-01-30 | 2013-09-18 | 富士機工株式会社 | Vehicle seat reclining device |
| JP5481915B2 (en) * | 2009-04-14 | 2014-04-23 | トヨタ紡織株式会社 | Vehicle seat coupling device |
| JP5592204B2 (en) * | 2010-09-01 | 2014-09-17 | シロキ工業株式会社 | Reclining device |
| DE102010053525B3 (en) * | 2010-12-01 | 2012-03-08 | Keiper Gmbh & Co. Kg | Fitting and vehicle seat |
| EP2908695B1 (en) * | 2012-10-19 | 2016-11-23 | L&P Property Management Company | Tension adjust device for a chair and chair |
| JP6237325B2 (en) * | 2014-02-24 | 2017-11-29 | アイシン精機株式会社 | Seat reclining device |
| CN106627269B (en) * | 2016-12-22 | 2023-08-22 | 湖北中航精机科技有限公司 | Seat angle adjuster and seat with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6024410A (en) * | 1997-08-08 | 2000-02-15 | Ikeda Bussan Co., Ltd. | Double-sided reclining apparatus |
| US6715835B2 (en) * | 2000-08-30 | 2004-04-06 | Aisin Seiki Kabushiki Kaisha | Seat reclining apparatus |
| US6726281B2 (en) * | 2001-11-27 | 2004-04-27 | Hutchinson | Vehicle seat equipped with a hinge mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004147811A (en) * | 2002-10-30 | 2004-05-27 | Imasen Electric Ind Co Ltd | Manufacturing method of internal tooth type reclining device of seat for vehicle |
-
2004
- 2004-10-29 JP JP2004316071A patent/JP4777635B2/en active Active
-
2005
- 2005-10-27 CN CN200580036928.4A patent/CN101048091B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6024410A (en) * | 1997-08-08 | 2000-02-15 | Ikeda Bussan Co., Ltd. | Double-sided reclining apparatus |
| US6715835B2 (en) * | 2000-08-30 | 2004-04-06 | Aisin Seiki Kabushiki Kaisha | Seat reclining apparatus |
| US6726281B2 (en) * | 2001-11-27 | 2004-04-27 | Hutchinson | Vehicle seat equipped with a hinge mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006122443A (en) | 2006-05-18 |
| JP4777635B2 (en) | 2011-09-21 |
| CN101048091A (en) | 2007-10-03 |
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