CN114734889A - Gear box and seat slide rail with same - Google Patents
Gear box and seat slide rail with same Download PDFInfo
- Publication number
- CN114734889A CN114734889A CN202110018076.7A CN202110018076A CN114734889A CN 114734889 A CN114734889 A CN 114734889A CN 202110018076 A CN202110018076 A CN 202110018076A CN 114734889 A CN114734889 A CN 114734889A
- Authority
- CN
- China
- Prior art keywords
- gear box
- box cover
- head tank
- constant head
- positioning groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0722—Constructive details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/075—Slide construction roller-less
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/039—Gearboxes for accommodating worm gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a gear box and a seat slide rail with the gear box, wherein the gear box comprises an upper box cover and a lower box cover, a worm wheel and a worm which are meshed with each other are arranged between the upper box cover and the lower box cover, the worm wheel comprises a tooth part and a support shaft extending outwards from two ends of the tooth part, the worm wheel is provided with a central threaded hole penetrating through the axial direction of the worm wheel, a shaft sleeve is sleeved on the support shaft in a rotating way, a left positioning groove, a tooth part positioning groove and a right positioning groove are sequentially arranged on the inner sides of the upper box cover and the lower box cover, the left positioning groove and the right positioning groove are used for positioning and installing the shaft sleeve, positioning steps are arranged at one end of the shaft sleeve close to the tooth part, two groups of positioning steps are positioned in the tooth part positioning groove, an elastic element is arranged between one positioning step and the side wall of the tooth part positioning groove, and the other positioning step is abutted against the side wall of the tooth part positioning groove. The invention has the beneficial effects that: compact structure, convenient assembling and low transmission noise.
Description
Technical Field
The invention belongs to the technical field of automobile seat parts, and particularly relates to a gear box and a seat slide rail with the same.
Background
The bottom of an automobile seat is usually provided with a sliding rail assembly, so that a driver and an occupant can adjust the position of the seat according to the needs of the driver and the occupant to obtain a more comfortable sitting posture.
The automobile seat slide rails are generally two groups and are symmetrically arranged on the floor of an automobile body, each group of slide rails consists of an upper slide rail and a lower slide rail, the upper slide rail is arranged below a seat basin of the seat, and the lower slide rail is arranged on the floor of the automobile body. At present, after the slide rails are assembled on a vehicle, a driving motor is positioned between two sets of slide rails, and the driving motor provides driving force to a gear box in the slide rails from the inner side faces, close to each other, of the two sets of slide rails so as to control the upper slide rails to slide on the lower slide rails.
Patent document No. CN210707000U discloses a seat slide rail for a vehicle, particularly a long slide rail with a long sliding stroke for a rear row in a commercial vehicle, in which power is vertically input into a slide rail assembly from the upper end of the slide rail, thereby solving the technical problem that the traditional slide rail is exposed on the floor of the vehicle body after being assembled, which affects the beauty of the interior.
The gear box between the upper and lower sliding rails in the above patent documents is a conventional design, i.e. a worm gear and a screw nut are used to transmit power to drive the upper sliding rail to slide back and forth. However, the gear box with the conventional design is directly applied to a sliding rail device with a long sliding stroke, and the technical defects of insufficient compactness in assembly, high transmission noise and the like exist.
Disclosure of Invention
In view of this, the invention provides a gear box, which has the advantages of compact structure, convenient assembly, low transmission noise and the like.
In order to realize the purpose, the technical scheme of the invention is as follows:
a gear box comprises an upper box cover and a lower box cover, wherein a worm wheel and a worm which are meshed with each other are arranged between the upper box cover and the lower box cover, the worm wheel comprises a tooth part and a supporting shaft extending outwards from two ends of the tooth part, the worm wheel is provided with a central threaded hole penetrating through the axial direction of the worm wheel, and the key is as follows: the utility model discloses a structure of fixing a box cover, including the back shaft, all rotate the cover on the back shaft and be equipped with the axle sleeve, the inboard of going up case lid and lower case lid all is equipped with left constant head tank, tooth portion constant head tank and right constant head tank in proper order, and wherein left constant head tank and right constant head tank are used for the location installation the axle sleeve, the axle sleeve all is equipped with the location step near the one end of tooth portion, and two sets of location steps all are located tooth portion constant head tank, are equipped with elastic element between one of them location step and the lateral wall of tooth portion constant head tank to make the lateral wall butt of another location step and tooth portion constant head tank.
Adopt above-mentioned gear box, the tooth portion of worm wheel is installed back in tooth portion constant head tank, because elastic element's setting, a location step is close to with the lateral wall of tooth portion constant head tank, and it is close to through elastic element between the lateral wall of another location step and tooth portion constant head tank to guarantee that there is not the erection space at the both ends of worm wheel, be favorable to guaranteeing driven ride comfort, play the effect that promotes compact structure nature and reduction transmission noise.
Preferably, the method comprises the following steps: the elastic element is a wave-shaped gasket which is sleeved on the shaft sleeve. By adopting the structure, the assembly is convenient.
Preferably, the method comprises the following steps: and one end of the shaft sleeve, which is far away from the positioning step, is provided with a positioning ring, and the inner diameter of the positioning ring is consistent with the major diameter of the central threaded hole. By adopting the structure, the gap between the end part of the shaft sleeve and the screw rod can be reduced, the effect of reducing the abnormal sound of the screw rod in operation is achieved, and the transmission smoothness is further improved.
Preferably, the method comprises the following steps: the outer diameter of the positioning ring is smaller than that of the shaft sleeve, the outer wall of the positioning ring is provided with a positioning block, and the left positioning groove and the right positioning groove are provided with positioning notches matched with the positioning block. By adopting the structure, the shaft sleeve is conveniently fixed in the left positioning groove and the right positioning groove of the gear box.
Preferably, the method comprises the following steps: the edge of the lower side of the upper box cover is provided with an auxiliary positioning lug, and the edge of the upper side of the lower box cover is provided with an auxiliary positioning groove matched with the auxiliary positioning lug. The inner side wall of the auxiliary positioning groove is an inclined surface. By adopting the structure, the upper box cover and the lower box cover are convenient to assemble.
Preferably, the method comprises the following steps: and two ends of the upper box cover and the lower box cover are sleeved with rubber sleeves. By adopting the structure, the gear box is arranged in the slide rail component, so that the mounting reliability can be ensured, and the purpose of reducing noise is achieved.
The invention also provides a seat slide rail with the gear box, which is characterized by comprising the following components:
two groups of lower sliding rails which are arranged in parallel;
the two groups of upper sliding rails are respectively installed in the lower sliding rails in a sliding manner;
the screw rod is fixedly arranged in the lower sliding rail;
the gear box is fixed in the upper sliding rail, and the screw rod is in threaded sleeve joint with a central threaded hole of the gear box;
the transfer gear box is arranged at a position above the upper sliding rail corresponding to the gear box, and a longitudinal transmission shaft is connected between the transfer gear box and a worm of the gear box;
and the motors are positioned between the two groups of upper sliding rails, and a horizontal transmission shaft is connected between each motor and the transfer gear box.
By adopting the sliding rail, the lower sliding rail can be hidden and arranged under the floor of the vehicle body, and the interior decoration is attractive. Meanwhile, the slide rail runs smoothly, and has extremely low transmission noise.
Preferably, the method comprises the following steps: the transfer gear box comprises a left box body and a right box body which are connected in a detachable mode, two bevel gears which are meshed with each other are arranged in the transfer gear box, one bevel gear is connected to the longitudinal transmission shaft, and the other bevel gear is connected to the horizontal transmission shaft. By adopting the structure, the horizontal power of the motor can be longitudinally transmitted to the gear box in the upper sliding rail.
Preferably, the method comprises the following steps: the one end that horizontal transmission shaft was kept away from to left side box and right box all is equipped with the assembly support, and the transfer gear box passes through the assembly support to be fixed in the upper end of last slide rail. By adopting the structure, the transfer gear box is convenient to assemble.
Compared with the prior art, the invention has the beneficial effects that:
1. zero clearance assembly can be realized to the axial of worm wheel in the gear box, is favorable to guaranteeing driven ride comfort, plays the effect that promotes compact structure nature and reduction transmission noise.
2. The gear box is more convenient to assemble, and after the gear box is applied to the sliding rail, the position where the screw rod is connected with the shaft sleeve cannot generate abnormal sound of screw rod operation, so that the smoothness of transmission is ensured, and the transmission noise is reduced.
Drawings
FIG. 1 is an exploded view of a gearbox A;
FIG. 2 is a sectional view of the screw rod threaded in the gear case A;
FIG. 3 is a schematic view of the upper case cover (with its underside looking upward);
FIG. 4 is a schematic structural view of the lower case cover;
FIG. 5 is a schematic structural view of a gearbox A with a rubber sleeve;
FIG. 6 is a cross-sectional view of a seat track;
fig. 7 is an exploded view of the transfer gear box B.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Referring to fig. 1, 6 and 7, a seat slide rail structurally comprises two sets of lower slide rails 7 and two sets of upper slide rails 8, wherein an upper slide rail 2 is slidably mounted in the lower slide rail 7, a screw rod 9 extending along the length direction of the lower slide rail 7 is fixedly mounted in the lower slide rail 7, a transfer gear box B and a gear box a are mounted on the upper slide rail 2 from top to bottom, the gear box a comprises an upper box cover 1 and a lower box cover 2 which are mutually buckled together, a worm wheel 3 and a worm 4 which are mutually meshed are arranged between the upper box cover 1 and the lower box cover 2, the worm wheel 3 is provided with a central threaded hole 3c which penetrates through the axial direction of the worm wheel, the screw rod 9 is in threaded connection with the central threaded hole 3c, the transfer gear box B comprises a left box body 13 and a right box body 14 which are detachably connected, two bevel gears 15 which are mutually meshed are arranged between the left box body 13 and the right box body 14, a motor 11 is fixedly mounted between the two sets of upper slide rails 2 through a bracket 17, a horizontal transmission shaft 12 is connected between the motor 11 and one bevel gear 15 of the transfer gearbox B, and a longitudinal transmission shaft 10 is connected between the other bevel gear 15 of the transfer gearbox B and the worm 4.
When the automobile seat is assembled, the lower sliding rail 7 is completely installed below the floor of an automobile body, the upper sliding rail 8 is located on the lower side of the seat, after the motor 11 is started, the output power of the motor 11 acts on the screw rod 9 through the horizontal transmission shaft 12 → the two bevel gears 15 → the longitudinal transmission shaft 10 → the worm 4 → the worm wheel 3, so that the seat is driven to slide back and forth relative to the lower sliding rail 7, the sliding rail is hidden and installed below the floor of the automobile body in the assembling mode, the interior of the automobile is tidier, and the appearance quality and the high-grade feeling of the automobile are effectively improved.
As shown in fig. 7, in order to fix the transfer gear box B to the upper end of the upper slide rail 8, the ends of the left box 13 and the right box 14, which are far away from the horizontal transmission shaft 12, are provided with assembling supports e, and the transfer gear box B is fixed to the upper end of the upper slide rail 8 through the assembling supports e.
As shown in fig. 5, rubber sleeves 16 are sleeved at two ends of the gear box a, and after the gear box a is installed in the upper slide rail 8, the rubber sleeves 16 can ensure the installation reliability and play a role in reducing noise.
As shown in fig. 1 to 4, the worm wheel 3 includes a tooth portion 3a and a support shaft 3b extending outward from two ends of the tooth portion 3a, the support shaft 3b is rotatably sleeved with a shaft sleeve 5, the inner sides of the upper case cover 1 and the lower case cover 2 are respectively provided with a left positioning groove a, a tooth portion positioning groove b and a right positioning groove c in sequence, wherein the left positioning groove a and the right positioning groove c are used for positioning and mounting the shaft sleeve 5, one end of each of the left and right shaft sleeves 5 close to the tooth portion 3a is provided with a positioning step 5a, the positioning steps 5a of the two shaft sleeves 5 are located in the tooth portion positioning grooves b, an elastic element 6 is arranged between the positioning step 5a of one of the shaft sleeves 5 and the side wall of the tooth portion positioning groove b, in this embodiment, the elastic element 6 is a wave-shaped gasket which is sleeved on the shaft sleeve 5, the wave-shaped gasket is mounted between the positioning step 5a and the side wall of the tooth portion positioning groove b and can provide axial elastic force, make the lateral wall butt of the location step 5a of another axle sleeve 5 and tooth portion constant head tank b to guarantee that there is not installation clearance at the both ends of worm wheel 3, be favorable to guaranteeing driven ride comfort, play the effect that promotes compact structure nature and reduction transmission noise.
As shown in fig. 1 and 2, in order to reduce the gap between the end of the shaft sleeve 5 and the lead screw 9 to prevent the lead screw from generating abnormal noise during operation and further improve the smooth transmission, a positioning ring 5b is disposed at one end of the shaft sleeve 5 far from the positioning step 5a, and the inner diameter of the positioning ring 5b is consistent with the major diameter of the central threaded hole 3 c. In order to facilitate the fixed installation of the shaft sleeve 5 in the left positioning groove a and the right positioning groove c of the gear box A, the outer diameter of the positioning ring 5b is smaller than that of the shaft sleeve 5, the outer wall of the positioning ring 5b is provided with a positioning block 5c, and the left positioning groove a and the right positioning groove c are provided with positioning gaps d matched with the positioning block 5 c.
As shown in fig. 3 and 4, when the gear box a is assembled, in order to facilitate the forward-locking of the upper box cover 1 and the lower box cover 2, an auxiliary positioning protrusion 1a is disposed on the edge of the lower side of the upper box cover 1, an auxiliary positioning groove 2a adapted to the auxiliary positioning protrusion 1a is disposed on the edge of the upper side of the lower box cover 2, and the inner side wall of the auxiliary positioning groove 2a is an inclined surface which can play a guiding role and is beneficial for the auxiliary positioning protrusion 1a to be quickly locked into the auxiliary positioning groove 2 a.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. A gear box (A) comprises an upper box cover (1) and a lower box cover (2), a worm wheel (3) and a worm (4) which are meshed with each other are arranged between the upper box cover (1) and the lower box cover (2), wherein the worm wheel (3) comprises a tooth part (3a) and a supporting shaft (3b) which extends outwards from two ends of the tooth part (3a), the worm wheel (3) is provided with a central threaded hole (3c) which penetrates through the axial direction of the worm wheel, and the gear box is characterized in that: all rotate the cover on back shaft (3b) and be equipped with axle sleeve (5), the inboard of going up case lid (1) and lower case lid (2) all is equipped with left constant head tank (a), tooth portion constant head tank (b) and right constant head tank (c) in proper order, and wherein left constant head tank (a) and right constant head tank (c) are used for the location installation axle sleeve (5), the one end that axle sleeve (5) is close to tooth portion (3a) all is equipped with location step (5a), and two sets of location step (5a) all are located tooth portion constant head tank (b), are equipped with elastic element (6) between the lateral wall of one of them location step (5a) and tooth portion constant head tank (b) to make the lateral wall butt of another location step (5a) and tooth portion constant head tank (b).
2. The gearbox of claim 1, wherein: the elastic element (6) is a wave-shaped gasket which is sleeved on the shaft sleeve (5).
3. A gearbox according to claim 1 wherein: and one end of the shaft sleeve (5) far away from the positioning step (5a) is provided with a positioning ring (5b), and the inner diameter of the positioning ring (5b) is consistent with the major diameter of the central threaded hole (3 c).
4. A gearbox according to claim 3, in which: the external diameter of holding ring (5b) is less than the external diameter of axle sleeve (5), is equipped with locating piece (5c) on the outer wall of holding ring (5b), have location breach (d) that suit with locating piece (5c) on left side constant head tank (a) and the right constant head tank (c).
5. A gearbox according to claim 1 or 2 or 3 or 4, in which: the edge of the lower side of the upper box cover (1) is provided with an auxiliary positioning lug (1a), and the edge of the upper side of the lower box cover (2) is provided with an auxiliary positioning groove (2a) matched with the auxiliary positioning lug (1 a).
6. A gearbox according to claim 5, in which: the inner side wall of the auxiliary positioning groove (2a) is an inclined surface.
7. A gearbox according to claim 1 or 2 or 3 or 4, in which: the two ends of the upper box cover (1) and the lower box cover (2) are sleeved with rubber sleeves (16).
8. A seat track, comprising:
two groups of lower sliding rails (7) which are arranged in parallel;
two groups of upper sliding rails (8) which are respectively installed in the lower sliding rails (7) in a sliding manner;
the screw rod (9) is fixedly arranged in the lower sliding rail (7);
the gearbox (A) according to any one of claims 1 to 7, which is fixed in the upper slide rail (8), and the screw rod (9) is in threaded sleeve connection with a central threaded hole (3c) of the gearbox (A);
the transfer gear box (B) is arranged at a position, corresponding to the upper part of the gear box (A), of the upper slide rail (8), and a longitudinal transmission shaft (10) is connected between the transfer gear box (B) and the worm (4) of the gear box (A);
and the motor (11) is positioned between the two groups of upper sliding rails (8), and a horizontal transmission shaft (12) is connected between the motor (11) and the transfer gear box (B).
9. The seat track of claim 8, wherein: the transfer gear box (B) comprises a left box body (13) and a right box body (14) which are detachably connected, two bevel gears (15) which are meshed with each other are arranged in the transfer gear box (B), one bevel gear (15) is connected to the longitudinal transmission shaft (10), and the other bevel gear (15) is connected to the horizontal transmission shaft (12).
10. The seat track of claim 9, wherein: and one ends of the left box body (13) and the right box body (14) far away from the horizontal transmission shaft (12) are respectively provided with an assembly support (e), and the transfer gear box (B) is fixed at the upper end of the upper sliding rail (8) through the assembly support (e).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110018076.7A CN114734889A (en) | 2021-01-07 | 2021-01-07 | Gear box and seat slide rail with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110018076.7A CN114734889A (en) | 2021-01-07 | 2021-01-07 | Gear box and seat slide rail with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114734889A true CN114734889A (en) | 2022-07-12 |
Family
ID=82274069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110018076.7A Pending CN114734889A (en) | 2021-01-07 | 2021-01-07 | Gear box and seat slide rail with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114734889A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118030780A (en) * | 2024-04-11 | 2024-05-14 | 宁波双林汽车部件股份有限公司 | Seat driver and design method and assembly method thereof |
-
2021
- 2021-01-07 CN CN202110018076.7A patent/CN114734889A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118030780A (en) * | 2024-04-11 | 2024-05-14 | 宁波双林汽车部件股份有限公司 | Seat driver and design method and assembly method thereof |
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