CN114475386B - Stepless adjusting mechanism for locking one side of seat lug - Google Patents
Stepless adjusting mechanism for locking one side of seat lug Download PDFInfo
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- CN114475386B CN114475386B CN202111431781.6A CN202111431781A CN114475386B CN 114475386 B CN114475386 B CN 114475386B CN 202111431781 A CN202111431781 A CN 202111431781A CN 114475386 B CN114475386 B CN 114475386B
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- lock head
- guide groove
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 17
- 230000008093 supporting effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/885—Head-rests provided with side-rests
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a stepless adjusting mechanism for locking a seat lug on one side, which comprises: the sliding block mechanism is arranged on the outer side of the bracket and moves along the bracket in a telescopic mode along the sliding block mechanism; the left lug and the right lug are arranged on two sides of the bracket and are respectively in shaft connection with the bracket and the sliding block mechanism, and when the left lug and the right lug rotate around the bracket, the sliding block mechanism is driven to do telescopic motion; the linkage mechanism is arranged between the support and the sliding block mechanism in a penetrating mode, the linkage mechanism is limited by the support and then is limited to the telescopic stroke of the sliding block mechanism, and therefore the movement and the locking of the left lug piece and the right lug piece are controlled by the linkage mechanism and only can move in a linkage mode and cannot move independently on one side. The linkage rod and the sliding block mechanism are arranged in the headrest, so that the linkage rod and the sliding groove of the sliding block mechanism form a self-locking angle, and the aim of controlling the lug pieces to rotate in a linkage manner and lock through the movement of the sliding block mechanism is fulfilled.
Description
Technical Field
The invention relates to the field of automobile seats, in particular to a stepless adjusting mechanism for locking a seat lug at one side.
Background
The traditional seat manual headrest lug and the child seat manual headrest lug are laterally supported by the damping hinge, so that a lateral supporting effect is achieved. The defect is that the locking cannot be realized, the lugs cannot be linked, when a vehicle is subjected to side collision accidents, the lateral direction of the lug of the traditional headrest cannot be locked to cause insufficient lateral supporting force, the head of a driver or a passenger slides out from the lateral surface of the headrest, so that the lateral surface cannot play a role in protecting the head or the neck, the single-side locking functional mechanism of the lug is designed aiming at the problem that the lug of the manual headrest collides with the lateral surface cannot play a role in protecting the head or the neck, and the head or the neck can be well protected from being injured by the lateral surface.
For example, chinese patent publication No. CN112937397A discloses an electric side wing folding mechanism, which includes a motor mounting framework, a slide rail assembly, a driving assembly, a slider, and a side wing tab mounting framework, wherein the driving assembly and the slide rail assembly are mounted on the motor mounting framework, the slider is connected to the slide rail assembly, an output end of the driving assembly is connected to the side wing tab through the slider, and two side wing tabs are hinged to the side wing tab mounting framework; the driving assembly is started to drive the sliding rail assembly to linearly move through the sliding block, so that the side wing lug piece mounting framework is driven to rotate to open or close. The automatic folding device is compact and reasonable in layout, automatic folding operation of the lateral wing lugs is achieved through conversion of motor actions, operation is convenient and rapid, and comfort of passengers is improved.
The Chinese patent publication No. CN111775797A discloses an electric drive lug mechanism which is provided with a lug assembly and a motor assembly, wherein the lug assembly comprises a lug plate support, a lug plate and a pivot shaft, the lug plate is rotatably connected to the lug plate support through the pivot shaft, the motor assembly comprises a motor and a sliding block, the sliding block is connected with the motor to drive the sliding block to move through the motor, one side of the lug plate close to the lug plate support is provided with a guide plate which extends obliquely, and the sliding block drives the guide plate to move so as to drive the lug plate to move. According to the electric driving lug mechanism, the sliding block is used as the guide piece, and the electric steering function is realized by the cooperation of the motor driving sliding block and the lug plate so as to provide high comfort and convenience for the headrest.
The lugs are synchronously driven to move by the motor, so that the cost is high, the size is large, and the trend of cost reduction and miniaturization of the current process is not met.
Disclosure of Invention
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a stepless adjusting mechanism for locking the lug of seat at one side comprises
The sliding block mechanism is arranged on the outer side of the bracket and moves along the bracket in a telescopic mode along the sliding block mechanism;
the left lug and the right lug are arranged on two sides of the bracket and are respectively in shaft connection with the bracket and the sliding block mechanism, and when the left lug and the right lug rotate around the bracket, the sliding block mechanism is driven to do telescopic motion;
the linkage mechanism penetrates between the support and the sliding block mechanism, is limited by the support and further limits the telescopic stroke of the sliding block mechanism, so that the movement and locking of the left lug and the right lug are controlled by the linkage mechanism, and only linkage movement can be realized, and single-side independent movement cannot be realized;
the support consists of a support body, a lock head guide part and a linkage rod guide part, and the linkage mechanism consists of a lock head and a linkage rod;
the lock head guide part is arranged in the center of the inner side of the bracket body, the linkage rod guide part is arranged in the center of the outer side of the bracket body and corresponds to the lock head guide part in position, and a slide block through hole is also arranged between the linkage rod guide part and the bracket body;
in a preferred embodiment of the present invention, the slider mechanism is composed of a left slider and a right slider;
the two sides of the left sliding block and the right sliding block are respectively in shaft connection with the left lug and the right lug, splicing is penetrated from the two sides of the sliding block through hole, a left sliding block telescopic guide groove and a right sliding block telescopic guide groove are correspondingly arranged on splicing surfaces of the inner sides of the left sliding block and the right sliding block respectively, and the left sliding block telescopic guide groove and the right sliding block telescopic guide groove are inclined grooves.
In a preferred embodiment of the invention, the linkage rod consists of a linkage rod base and a linkage rod bolt, one end of the linkage rod bolt is connected with the linkage rod base, and the other end of the linkage rod bolt passes through the linkage rod guide part, the left slider telescopic guide groove, the right slider telescopic guide groove and the lock head guide part and then is connected with the lock head.
In a preferred embodiment of the present invention, the method further comprises:
the lock guide groove is arranged on the lock guide part, and the lock is arranged in the lock guide groove;
the linkage rod guide groove is formed in the linkage rod guide part, and the linkage rod base is arranged in the linkage rod guide groove;
the linkage rod guide groove and the lock head guide groove correspond to each other in position, and the lock head and the linkage rod base are limited by the lock head guide groove and the linkage rod guide groove respectively and can only move vertically.
In a preferred embodiment of the present invention, the method further comprises:
the second linkage rod penetrating groove is arranged in the center of the lock head guide groove in a penetrating manner;
the first linkage rod penetrating groove penetrates through the center of the linkage rod guide groove, the first linkage rod penetrating groove and the second linkage rod penetrating groove correspond to each other in position, and the linkage rod bolt sequentially penetrates through the first linkage rod penetrating groove, the left slider telescopic guide groove, the right slider telescopic guide groove and the second linkage rod penetrating groove and then is connected with the lock head.
In a preferred embodiment of the present invention, the left ear consists of a left ear panel and a left ear connection;
the left lug panel is used for supporting the headrest comfort layer, and the left lug connecting part is arranged on the right side of the left lug panel;
the left lug connecting part is provided with a left lug connecting part pin hole and a left lug connecting extending part;
the left lug plate pin hole is vertically arranged on the left lug plate connecting part in a penetrating manner, at least 1 left lug plate connecting extending part is arranged at the rear side of the left lug plate connecting part, and a left lug plate connecting extending part pin hole is also arranged on the left lug plate connecting extending part in a penetrating manner;
the right lug plate is also composed of a right lug plate panel, a right lug plate connecting part, a right lug plate connecting extending part and a right lug plate connecting extending part pin hole, and the right lug plate structure is a mirror image of the structure corresponding to the left lug plate.
In a preferred embodiment of the present invention, the bracket is composed of a left connecting bracket, a right connecting bracket and a bracket body;
the left connecting frame is arranged at the left end of the inner side of the bracket body, at least 1 left connecting lug is arranged on the left connecting frame, a left connecting lug pin hole is also formed in the left connecting lug, and the left lug sequentially penetrates through the left connecting lug pin hole, the left lug connecting pin hole and the other 1 left connecting lug pin hole in a shaft joint mode through a lug fixing pin;
the right connecting frame is arranged at the right end of the inner side of the support body, the right connecting frame is structurally in mirror image with the left connecting frame, at least 1 right connecting lug and a right connecting lug pin hole are arranged in the same mode, and the right connecting frame is in shaft connection with the right lug through a lug fixing pin in the same mode.
In a preferred embodiment of the present invention, the sliding device further comprises a left slider connecting portion disposed on an outer side of the left slider and a right slider connecting portion disposed on an outer side of the right slider, and positions of the left slider connecting portion and the right slider connecting portion are mirror images;
the left slider connecting part and the right slider connecting part are respectively provided with a left slider connecting part pin hole and a right slider connecting part pin hole;
the left lug plate penetrates through the left lug plate connecting extension part pin hole and the left slider connecting part pin hole through a slider lug plate fixing pin and then is in shaft joint with the left slider, and the right lug plate is in shaft joint with the right slider in the same mode.
The invention has the beneficial effects that:
according to the stepless adjusting mechanism for locking the seat ear piece on one side, the linkage rod and the sliding block mechanism are arranged in the headrest, so that the linkage rod and the sliding groove of the sliding block mechanism form a self-locking angle, and the aim of controlling the ear piece to rotate in a linkage manner and be locked through the movement of the sliding block mechanism is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below.
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a front structural schematic view of the bracket of the invention.
Fig. 3 is a schematic view of the reverse structure of the stent of the present invention.
Fig. 4 is a schematic structural view of the right slider of the present invention.
Fig. 5 is a schematic view of the slider mechanism and bracket assembly of the present invention.
Fig. 6 is a schematic view of the linkage, bracket and slider mechanism assembly of the present invention.
Fig. 7 is a first schematic view of the movement of the linkage mechanism, bracket and slider mechanism of the present invention after assembly.
Fig. 8 is a second schematic view of the movement of the linkage, bracket and slider mechanism of the present invention after assembly.
Fig. 9 is a schematic view of the left ear structure of the present invention.
FIG. 10 is a schematic view of the assembly of the left and right tabs and the stent of the present invention.
FIG. 11 is a schematic view of the assembly of the left and right ear pieces and the slider mechanism of the present invention.
Fig. 12 is a top view of the left and right ear panels of the present invention in an unfolded state after assembly.
Fig. 13 is a cross-sectional view B-B of fig. 12 of the present invention.
FIG. 14 is a top view of the left and right ears of the present invention in a closed position after assembly.
Fig. 15 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 14 of the present invention.
Fig. 16 is a simplified drive diagram of the tab, slider and linkage mechanism of the present invention.
Fig. 17 is a schematic diagram of the slider and linkage unlocking mechanism of the present invention.
FIG. 18 is a schematic diagram of the self-locking of the slider and linkage mechanism of the present invention.
Fig. 19 is a front expanded view one after assembly of the present invention.
Fig. 20 is a second front expanded view of the assembled invention.
Fig. 21 is a front expanded view three of the assembled state of the present invention.
Fig. 22 is a first schematic view of the operation of the headrest of the invention in a seat.
Fig. 23 is a second schematic view showing the operation of the headrest of the present invention on a seat.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, the longitudinal direction (X axis) "," lateral direction (Y axis) "," vertical direction (Z axis) "is a spatial coordinate system term in the automotive field, and is a term of art well known to those skilled in the art, and the above description is for convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The detailed structure of the invention is further described below in conjunction with the drawings and the detailed description.
Referring to fig. 1, the stepless adjustment mechanism for locking the single side of the seat ear mainly includes a bracket 100, a left ear 250 and a right ear 200 disposed at two sides of the bracket 100, and a slider mechanism 30 disposed on the bracket 100 and locking the left ear 250 and the right ear 200 by cooperating with the bracket 100 through a linkage mechanism 40.
Referring to fig. 2 and 3, the bracket 100 is composed of a left connecting frame 152, a right connecting frame 102, a lock head guide part 103, a bracket body 101, and a linkage rod guide part 104. The left connecting frame 152 is disposed at the left end of the inner side of the frame body 101, and 2 left connecting lugs 152a are disposed on the upper and lower sides of the left connecting frame and are respectively symmetrical about the Y axis (lateral direction), and a left connecting lug pin hole 152b is disposed on the left connecting lug 152 a. The right connecting frame 102 is disposed at the right end of the inner side of the frame body 100, and also includes 2 right connecting lugs 102a and right connecting lug holes 102b, and the structure of the right connecting frame is symmetrical to the left connecting lug 152a and the right connecting lug hole 152b of the left connecting frame 152 in the Z-axis (vertical) direction. The lock guiding part 103 is arranged at the center of the inner side of the bracket body 100 along the Z direction, the lock guiding groove 103a is arranged on the lock guiding part 103, and the center of the lock guiding groove is also provided with a second linkage rod through groove 103b. The linkage rod guide part 104 is arranged on the back of the bracket body 101 in a protruding mode, a slider through hole 104a in the Y-axis (lateral) direction is formed in one side, close to the bracket body 101, of the linkage rod guide part, a linkage rod guide groove 104b is arranged in the center of the outer side face of the linkage rod guide part 104 in the Z direction, and a first linkage rod through groove 104c is formed in the center of the linkage rod guide groove 104 b. The first linkage rod through slot 104c and the second linkage rod through slot 103b are correspondingly positioned.
Referring to fig. 4, the slider mechanism 30 is composed of a right slider 300 and a left slider 350, respectively. The right slider 300 includes a right slider body 301, a right slider connecting portion 303 disposed at an outer side, and a right slider telescopic guide portion 302 disposed at an inner side. The right slider connecting portion pin hole 303a is provided through the right slider connecting portion 303 in the Z direction. The right slider telescopic guide portion 302 is in a shape of a sinking step, the thickness of the right slider telescopic guide portion 302 is smaller than that of the right slider body 301, and the right slider telescopic guide groove 302a penetrates through the right slider telescopic guide portion 302. The right slider expansion guide groove 302a is a straight inclined groove. The left slider 300 is also composed of a left slider body 351, a left slider telescopic guide portion 352, a left slider connecting portion 353, a left slider connecting portion pin hole 353a, and a left slider telescopic guide groove 352a, which are positioned corresponding to and mirror-imaged with the pair of the above-described right sliders.
Referring to fig. 5 and 6, the left and right slider telescopic guides 352 and 302 are fitted into the linkage bar guide 104 from both ends of the slider penetration hole 104a facing each other. The left slider telescopic guide 352 and the right slider telescopic guide 302 are fitted and engaged with each other so that the slider mechanism 30 can slide back and forth in the Y-axis direction from the rear side against the surface of the holder 100. The linkage mechanism 40 is composed of a linkage rod 400 and a lock head 500. The linkage rod 400 consists of a flat linkage rod base 401 and a linkage rod bolt 402 which protrudes upwards from the linkage rod base 401; the lock 500 is provided with a lock through hole 501. The linkage rod base 401 is arranged in the linkage rod guide groove 104b and limited by the linkage rod base to move along Z phase, and the linkage rod bolt 402 passes through the first linkage rod through groove 104c, the left slider telescopic guide groove 352a, the right slider telescopic guide groove 302a, the second linkage rod through groove 103b and the lock head through hole 501 once and then is fixed on the lock head 500. The linkage rod bolt 402 and the lock head 500 can be fixed in a threaded manner, a riveting manner or an adhesion manner.
Referring to fig. 7 and 8, when the link rod 400 moves to the top end of the first link rod through-groove 104c, so that the left slider 350 and the right slider move toward each other under the guidance of the left slider telescopic guide groove 352a and the right slider telescopic guide groove 302a, the slider mechanism 30 is contracted on the bracket 100. When the linkage rod 400 moves to the bottom end of the first linkage rod through slot 104c, the left slider 350 and the right slider 300 move in opposite directions, and the slider mechanism 30 is unfolded towards two sides.
Referring to fig. 9, the left ear 250 is composed of a left ear panel 270 and a left ear connection 260. Left ear panel 270 is for providing support to the headrest comfort layer and left ear connection 260 is provided on the right side of the left ear panel for connecting left ear 250 to bracket 100. The left ear connecting pin hole 260a is penetratingly disposed on the left ear connecting portion 260 along the Z direction, 2 left ear connecting extensions 261 are respectively disposed at upper and lower ends of a rear side of the left ear connecting portion 260, and a left ear connecting extension 261 is further disposed with a left ear connecting extension pin hole 261a. The right ear piece 200 is composed of a right ear piece panel 220 and a right ear piece connecting part 210, and the right ear piece connecting part 210 is also provided with a right ear piece connecting part pin hole 260a, a right ear piece connecting extension 211 and a right ear piece connecting extension pin hole 211a, which are all mirror images of the corresponding left ear structure.
Referring to fig. 10 and 11, a tab fixing pin 600 axially couples the left tab 250 to the bracket 100 through 1 left connecting tab pin hole 152b, a left tab connecting portion pin hole 260a, and another 1 left connecting tab pin hole 152b in order such that the left tab 250 can rotate about the left connecting tab pin hole 152b. The right tab 200 is also fixed to the stand 100 by another 1 tab fixing pin 600 in the same manner. The slider tab fixing pin 700 sequentially passes through 1 left tab connecting extension pin hole 261a, the left slider connecting part pin hole 353a and the other 1 left tab connecting extension small opening 261a, and then the left tab 250 and the left slider 350 are connected through the shaft. The right ear plate 200 and the right slider 300 are also coupled by the shaft in the same manner.
With combined reference to fig. 12 to 15, when the link bolt 402 is located at the top position where three points of the first link through slot 104c, the left slider telescopic guide slot 352a and the right slider telescopic guide slot 302a coincide, the left slider 350 and the right slider 300 are restricted from moving to both sides, and the left tab 250 and the right tab 200 are located at the maximum inward rotation folding position. Meanwhile, the left tab 250 and the right tab 200 are pulled outwards, so that the left slider 350 and the right slider 300 are forced to move towards each other, and the linkage rod bolt 402 tends to move downwards under the opposite thrust of the right slider telescopic guide groove 302a and the left slider telescopic guide groove 352 a. Meanwhile, since the linkage rod bolt 402 is laterally limited by the first linkage rod through slot 104c, the linkage rod bolt 402 can only move along the Z direction along with the first linkage rod through slot 104 c. When the linkage rod bolt 402 moves to the lowest point of the first linkage rod through slot 104c, the linkage rod bolt 402 is also located at the lowest point of the right slider telescopic guide slot 302a and the left slider telescopic guide slot 352a, at this time, the right slider 300 and the left slider 350 are contracted, and the right ear piece 200 and the left ear piece 250 are unfolded outwards to the maximum position on the slider mechanism 30. The right slider expansion guide groove 302a and the left slider expansion guide groove 352a are oblique grooves which are mirror images of each other, and have a "V" shaped perspective cross section. Specifically, set upThe force from the left slider 350 and the right slider 300 is F, and the friction coefficient between the right slider telescopic guide groove 302a and the left slider telescopic guide groove 352a and the linkage rod bolt 402 is mu 1 The self-locking angle is alpha: from F, cos, alpha, sin, alpha, mu 1 * F sin alpha cos alpha and F sin alpha > mu 1 * F is the cos alpha, alpha is more than arctan mu 1 . Linkage rod oblique angle arctan mu 1 And when the self-locking angle alpha is larger than the self-locking angle alpha of the double-sided stressed lug mechanism, the mechanism is unlocked.
If only one of the left tab 250 or the right tab 200 is pulled, the linkage rod pin 402 is only subjected to a force from one side of the right slider telescopic guide groove 302a and the left slider telescopic guide groove 352a, so that the linkage rod pin 402, the first linkage rod through groove 104c and the second linkage rod through groove 103b are extruded and clamped, and the linkage rod pin 402 and the tab on the other side cannot move. Specifically, the self-locking angle of the unilateral stress self-locking is set as alpha, and the friction coefficient between the right slider telescopic guide groove 302a, the left slider telescopic guide groove 352a and the linkage rod bolt 402 is set as mu 1 The friction coefficient between the linkage rod bolt 402 and the first linkage rod through groove 104c and the second linkage rod through groove 103b is mu 2 . The formula gives (cos alpha. Omega. Cos alpha + mu) 1 ＊sinαsinα)＊μ 2 +μ 1 Onsin alpha cos alpha < cos alpha Onsin alpha according to mu 1 *μ 2 sin 2 Alpha is approximately equal to 0 and is obtained by simplifying the calculation
Linkage rod bevel
Smaller than the self-locking angle alpha of the single-sided stress mechanism, and the resultant force in the Y direction is smaller than 0: (cos α. Cos α + μ) 1 *sinαsinα)*μ 2 +μ 1 * sin alpha cos alpha < cos alpha sin alpha, the mechanism is self-locking.
Referring to fig. 16 to 18, when the left and right tabs 250 and 200 are at the maximum spread position, the linkage rod pin 402 is located at the top end of the second linkage rod through slot 103b, and the lock head 500 is located above the lock head guide slot 103 a. Because the lock head 500 is disposed in the lock head guide slot 103a and connected to the linkage rod bolt 402, when the linkage rod bolt 402 moves downward in the first linkage rod through slot 104c and the second linkage rod through slot 103b, the lock head 500 is driven to move downward synchronously. The lock head guide groove 103a and the linkage rod guide groove 104b are matched together to limit the lateral positions of the lock head 500 and the linkage rod base 401, so that the linkage mechanism 40 can only move along the Z direction in a space limited by the lock head guide groove 103a and the linkage rod guide groove 104b together. When the left tab 250 and the right tab 200 are gradually turned inward, the locking head 500 is driven by the interlocking bar pin 402 to move downward along the locking head guide groove 103a, and when the tabs are at the maximum position of inward turning, the locking head 500 is at the lowest point of the locking head guide groove 103 a.
Referring to fig. 19 and 20, the headrest 2 is mounted on the seat back 1 after being covered, and the left tab 250 and the right tab 200 are turned over and unfolded under the cooperation of the linkage mechanism 40 and the slider mechanism 30 by applying a turning external force to the headrest tabs 2a on both sides simultaneously.
Claims (8)
1. A stepless adjusting mechanism for locking the lug of seat at one side is characterized by comprising
The sliding block mechanism is arranged on the outer side of the bracket and moves in a telescopic mode along the bracket;
the left lug and the right lug are arranged on two sides of the bracket and are respectively in shaft connection with the bracket and the sliding block mechanism, and when the left lug and the right lug rotate around the bracket, the sliding block mechanism is driven to do telescopic motion;
the linkage mechanism penetrates between the support and the sliding block mechanism, is limited by the support and further limits the telescopic stroke of the sliding block mechanism, so that the movement and locking of the left lug and the right lug are controlled by the linkage mechanism, and only linkage movement can be realized, and single-side independent movement cannot be realized;
the support consists of a support body, a lock head guide part and a linkage rod guide part, and the linkage mechanism consists of a lock head and a linkage rod;
the lock head guide part is arranged in the center of the inner side of the bracket body, the linkage rod guide part is arranged in the center of the outer side of the bracket body and corresponds to the lock head guide part in position, and a slide block through hole is also arranged between the linkage rod guide part and the bracket body;
the lock head is arranged in the lock head guide part, one end of the linkage rod is arranged in the linkage rod guide part, the other end of the linkage rod penetrates through the linkage rod guide part, the slider mechanism and the lock head guide part and then is connected with the lock head, the lock head and the linkage rod are limited by the lock head guide part and the linkage rod guide part respectively in the lateral direction, and the lock head and the linkage rod move upwards or downwards along the lock head guide part and the linkage rod guide part respectively along the expansion of the slider mechanism.
2. The stepless adjusting mechanism for the unilateral locking of the seat lug plate according to claim 1, characterized in that the slide block mechanism consists of a left slide block and a right slide block;
the two sides of the left slider and the right slider are respectively in shaft connection with the left lug and the right lug, the two sides of the slider through hole are penetrated and spliced, a left slider telescopic guide groove and a right slider telescopic guide groove are correspondingly arranged on the splicing surfaces of the inner sides of the left slider and the right slider respectively, and the left slider telescopic guide groove and the right slider telescopic guide groove are chutes.
3. The stepless adjusting mechanism for the unilateral locking of the seat ear pieces as claimed in claim 2, wherein the linkage rod is composed of a linkage rod base and a linkage rod bolt, one end of the linkage rod bolt is connected with the linkage rod base, and the other end of the linkage rod bolt passes through the linkage rod guide part, the left slider telescopic guide groove, the right slider telescopic guide groove and the lock head guide part and then is connected with the lock head.
4. The stepless adjustment mechanism for the unilateral locking of the seat lug of claim 3, further comprising:
the lock head guide groove is formed in the lock head guide part, and the lock head is arranged in the lock head guide groove;
the linkage rod guide groove is formed in the linkage rod guide part, and the linkage rod base is arranged in the linkage rod guide groove;
the linkage rod guide groove and the lock head guide groove correspond to each other in position, and the lock head and the linkage rod base are limited by the lock head guide groove and the linkage rod guide groove respectively and can only move vertically.
5. The stepless adjustment mechanism for the unilateral locking of the seat lug of claim 3, further comprising:
the second linkage rod through groove is arranged in the center of the lock head guide groove;
the first linkage rod penetrating groove is formed in the center of the linkage rod guide groove, the first linkage rod penetrating groove and the second linkage rod penetrating groove correspond to each other in position, and the linkage rod bolt sequentially penetrates through the first linkage rod penetrating groove, the left slider telescopic guide groove, the right slider telescopic guide groove and the second linkage rod penetrating groove and then is connected with the lock head.
6. The stepless adjusting mechanism for the unilateral locking of the seat ear piece according to claim 2, wherein the left ear piece is composed of a left ear piece panel and a left ear piece connecting part;
the left lug panel is used for supporting the headrest comfort layer, and the left lug connecting part is arranged on the right side of the left lug panel;
the left lug connecting part is provided with a left lug connecting part pin hole and a left lug connecting extending part;
the left lug connecting part pin hole is vertically arranged on the left lug connecting part in a penetrating manner, at least 1 left lug connecting extending part is arranged at the rear side of the left lug connecting part, and a left lug connecting extending part pin hole is also arranged on the left lug connecting extending part in a penetrating manner;
the right lug is also composed of a right lug panel, a right lug connecting part, a right lug connecting extending part and a right lug connecting extending part pin hole, and the right lug structure is a mirror image of the corresponding structure of the left lug.
7. The stepless adjusting mechanism for the unilateral locking of the seat ear piece according to claim 3, wherein the bracket is composed of a left connecting frame, a right connecting frame and a bracket body;
the left connecting frame is arranged at the left end of the inner side of the bracket body, at least 1 left connecting lug is arranged on the left connecting frame, a left connecting lug pin hole is also formed in the left connecting lug, and the left lug sequentially penetrates through the left connecting lug pin hole, the left lug connecting pin hole and the other 1 left connecting lug pin hole in a shaft joint mode through a lug fixing pin;
the right connecting frame is arranged at the right end of the inner side of the support body, the right connecting frame is structurally in mirror image with the left connecting frame, at least 1 right connecting lug and a right connecting lug pin hole are arranged in the same mode, and the right connecting frame is in shaft connection with the right lug through a lug fixing pin in the same mode.
8. The stepless adjusting mechanism for the unilateral locking of the seat ear piece according to claim 7, further comprising a left slider connecting part arranged on the outer side of the left slider and a right slider connecting part arranged on the outer side of the right slider, wherein the positions of the left slider connecting part and the right slider connecting part are mirror images;
the left sliding block connecting part and the right sliding block connecting part are respectively provided with a left sliding block connecting part pin hole and a right sliding block connecting part pin hole;
the left lug plate penetrates through the left lug plate connecting extension part pin hole and the left slider connecting part pin hole through a slider lug plate fixing pin and then is in shaft joint with the left slider, and the right lug plate is in shaft joint with the right slider in the same mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111431781.6A CN114475386B (en) | 2021-11-29 | 2021-11-29 | Stepless adjusting mechanism for locking one side of seat lug |
Applications Claiming Priority (1)
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| CN202111431781.6A CN114475386B (en) | 2021-11-29 | 2021-11-29 | Stepless adjusting mechanism for locking one side of seat lug |
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| CN114475386A CN114475386A (en) | 2022-05-13 |
| CN114475386B true CN114475386B (en) | 2023-04-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012135245A2 (en) * | 2011-03-28 | 2012-10-04 | Weber Aircraft Llc | Adjustable head rest |
| US9611041B2 (en) * | 2015-03-20 | 2017-04-04 | B/E Aerospace, Inc. | Passenger seat headrest |
| KR101878280B1 (en) * | 2016-12-22 | 2018-07-23 | 주식회사 서연씨엔에프 | Headrest |
| JP2018144507A (en) * | 2017-03-01 | 2018-09-20 | トヨタ紡織株式会社 | Headrest for vehicle |
| CN210437058U (en) * | 2019-07-15 | 2020-05-01 | 上汽大众汽车有限公司 | Adjustable automobile headrest framework with locking function |
| CN112937397B (en) * | 2021-04-06 | 2025-01-10 | 上海国琻汽车科技有限公司 | Electric side wing folding mechanism |
| CN113263967B (en) * | 2021-06-18 | 2022-07-08 | 东风汽车有限公司东风日产乘用车公司 | Control method for side wing of automobile seat |
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