CN204383210U - The nut assembly of screw mandrel is regulated before and after vehicle seats - Google Patents
The nut assembly of screw mandrel is regulated before and after vehicle seats Download PDFInfo
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- CN204383210U CN204383210U CN201520009285.5U CN201520009285U CN204383210U CN 204383210 U CN204383210 U CN 204383210U CN 201520009285 U CN201520009285 U CN 201520009285U CN 204383210 U CN204383210 U CN 204383210U
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- screw mandrel
- lining
- nut assembly
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Abstract
The utility model relates to the nut assembly regulating screw mandrel before and after a kind of vehicle seats, and nut assembly comprises nut, lining, support; Support is concave shape, and support shaft upwards has a pair through hole passed for screw mandrel; A pair lining is stuck in the through hole of support, and its lateral frame and support are fixed, and nut is fixed by inner frame; Lining is synthetic material.Nut and support axially can be isolated by this programme, prevent the Contact of metal and metal from producing noise; Horizontal lead screw mechanism because screw mandrel can decentraction, and causes nut to shake up and down under operation; Can ensure that nut contacts with lining wave signature at any time, prevent nut and support in operational process from clashing into and produce noise and vibration; Prevent screw mandrel from being driven to rotate together by nut in rotation process and clash into other article, produce noise and vibration, increase a little feature to prevent nut in rotation process with other object strikes; Can prevent screw mandrel from contacting to produce with support when rotating and shake and noise.
Description
Technical field
The utility model relates to a kind of front and back regulating mechanism of automotive seat, particularly relates to the nut assembly regulating screw mandrel before and after a kind of vehicle seats, belongs to automotive seating art field.
Background technology
Automobile chair forward backward horizontal slip mechanism mainly contain two kinds of forms; One is that manually another kind is electronic.Middle and high end vehicle slide anteroposterior is mainly based on electronic, and the horizontal drive mechanism in electric slide rail is mainly propulsion source with motor, and deceleration box connection is realized slide anteroposterior by flexible axle by centre;
Principle of work: automobile storage battery is energized to motor by wire harness, revolution, motor driving worm screw is rotated, and worm screw passes through gear reduction, gear driven screw mandrel rotates, and the nut on final screw mandrel rotating band movable wire bar moves to realize chaufeur or passenger reaches comfortable seating position.
The problems such as shake, noise and driving efficiency are low are produced when horizontal lead screw transmission device on market nearly all has an operation.
The preposition horizontal lead screw transmission device used in the market generally adopts following two kinds of forms:
Front end deceleration box is fixed by support and upper slide rail, intermediate nut is fixed by support and glidepath, the disadvantage that this structure exists is: intermediate nut needs support to fix, take up room comparatively large, if this structure of limited space is inapplicable, another is connected with metal sliding rail after intermediate nut is connected with metallic support again, because this structure belongs to thin-walled cantilever, want carrying client to require the static strength of 25KN, need to increase thickness, need space also larger.Another shortcoming is the gap that this structure cannot regulate x, y, z three directions, and during operation, noise and shake also can be larger.
Another form directly on deceleration box, does feature, fixed by deceleration box feature and slide rail.Middle travelling nut is connected with slide rail by metallic support, uses rubber to abate the noise and vibration between metallic support and nut.This structure disadvantage is; Rubber is easily aging cannot cross durability experiment, cannot meet endplay requirement simultaneously.
Summary of the invention
The utility model technical issues that need to address are: the nut assembly regulating screw mandrel before and after automotive seat of the prior art, and noise is large, and shake is large, and endplay is difficult to control; Adopt support 4a, nut 4b, rubber bush 4c, rubber is easily aging cannot cross durability experiment, cannot meet endplay requirement simultaneously.
The design of intermediate nut, nut and bracket vibration damping are the keys solved the problems of the technologies described above, the utility model by the following technical solutions:
Regulate a nut assembly for screw mandrel before and after vehicle seats, it is characterized in that: described nut assembly comprises nut 5a, lining 5b, support 5c; Described support 5c is concave shape, and support 5c axially has a pair through hole passed for screw mandrel; A pair lining 5b is stuck in the through hole of support 5c, and the lateral frame of lining 5b and inner frame form I-shaped structure 5b1, and lateral frame and the support 5c of I-shaped structure 5b1 are fixed, and nut 5a is fixed by inner frame; Described lining 5b is synthetic material.
Speed reduction gearing 6 and screw mandrel 3 are fixed with upper slide rail 1, and nut assembly 5 is fixed with glidepath 2, and upper slide rail 1 is combined into a set of slide mechanism with glidepath 2.Motor energising drives speed reduction gearing 6, and strength transmission makes screw mandrel rotate to screw mandrel 3 by speed reduction gearing 6, is motionless because nut assembly 5 is fixed on glidepath, and so in screw mandrel 3 rotating drive, slide rail 1 runs the front and back regulatory function realizing seat.Adopt this version of lining 5b, make itself and support form good snug fit, thus intensity can use Composite, and then realize vibration isolation and the function regulating gap; Position degree and the straightness accuracy of nut assembling are easily guaranteed; Nut is without the need to arranging rubber sleeve, and parts are few, easy to assembly, and assembly precision requires to reduce; Working accuracy is easily guaranteed, and I-shaped structure 5b1 self has toughness, has certain self-regulation effect.
Further, the bottom of described lining 5b has the vibration damper plate 5b3 of band ripple glaze, and the length of described vibration damper plate 5b3 is equal to or less than 1/2nd of nut 5a width, and a pair vibration damper plate 5b3 phase is spliced, and is stuck between nut 5a and support 5c.Vibration damper plate 5b3 down through waveform configuration regulates, and setting range is comparatively large, also more stable.
Further, multiple U-lag offered by the sleeve pipe of described lining 5b, so that elastic conjunction.
Further, described support 5c bottom has a pair tapped bore.
Further, described lining 5b is POM plastic part.
The beneficial effects of the utility model are:
1) axially nut and support can be isolated, prevent the Contact of metal and metal from producing noise.Horizontal lead screw mechanism under operation due to screw mandrel can with the through hole decentraction of support, and cause nut to shake up and down.The utility model can ensure that nut contacts with lining wave signature at any time, prevents nut and support in operational process from clashing into and produces noise and vibration.
2) prevent screw mandrel from being driven to rotate together by nut in rotation process and clash into other article, produce noise and vibration, increase I shape feature prevent nut in rotation process with other object strikes.
3) can prevent screw mandrel from contacting to produce with support when rotating and shake and noise.
4) nut assembling position degree and straightness accuracy be easily guaranteed;
5) nut is without the need to arranging rubber sleeve, and parts are few, easy to assembly;
6) assembly precision requires to reduce;
7) working accuracy is easily guaranteed, and I-shaped structure self has toughness, has certain self-regulation effect; Vibration damper plate down through waveform configuration regulates, and setting range is comparatively large, also more stable.
Accompanying drawing explanation
Fig. 1 is the exploded view of screw mandrel of the prior art, nut assembly, upper and lower guide rail.
Fig. 2 is the assembling schematic diagram of screw mandrel of the prior art, nut assembly.
Fig. 3 is the exploded view of nut assembly of the prior art.
Fig. 4 is the exploded view of screw mandrel in the utility model, nut assembly, upper and lower guide rail.
Fig. 5 is the sectional arrangement drawing of screw mandrel in the utility model, nut assembly, upper and lower guide rail.
Fig. 6 is the exploded view of the utility model nut assembly.
Fig. 7 is the assembly drowing of the utility model nut assembly.
Fig. 8 is the utility model screw mandrel Disassembling Products schematic diagram.
Fig. 9 is the sectional arrangement drawing of the utility model nut assembly.
In figure, 1. upper rail, 2. lower guideway, 3. screw mandrel, 4. existing nut assembly, the support of the existing nut assembly of 4a., the nut of the existing nut assembly of 4b., the rubber coating of the existing nut assembly of 4c., 5. nut assembly, 5a. nut, 5b. lining, 5c. support, 5b1. I-shaped structure, 5b2. sleeve pipe, 5b3. vibration damper plate, 5c1. through hole, 5c2. longitudinal threaded bore, 6. speed reduction gearing, 7. rear support.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
Concrete structure is as follows:
See Fig. 4, speed reduction gearing 6 and screw mandrel 3 are fixed with upper slide rail 1, and nut assembly 5 is fixed with glidepath 2, and upper slide rail 1 is combined into a set of slide mechanism with glidepath 2.Motor energising drives speed reduction gearing 6, and strength transmission makes screw mandrel rotate to screw mandrel 3 by speed reduction gearing 6, is motionless because nut assembly 5 is fixed on glidepath, and so in screw mandrel 3 rotating drive, slide rail 1 runs the front and back regulatory function realizing seat.
See Fig. 6, regulate the nut assembly 5 of screw mandrel before and after a kind of vehicle seats, comprise nut 5a, lining 5b, support 5c; Described support 5c is concave shape, support 5c axially has a pair through hole 5c1 passed for screw mandrel, in conjunction with see Fig. 9, described support 5c bottom has the tapped bore 5c2 of a pair longitudinal direction, nut assembly and lower guideway are mainly coupled together by screw by the effect of the 5c2 of tapped bore, bear axial shearing force simultaneously; A pair lining 5b is stuck in a pair through hole 5c1 of support 5c, and the one side that lining 5b has sleeve pipe 5b2 is lateral frame, and the another side of opposite exterior lateral sides framework is inner frame.The lateral frame of lining 5b and inner frame form I-shaped structure 5b1, and lateral frame and the support 5c of I-shaped structure 5b1 are fixed, and nut 5a is fixed by inner frame;
The sleeve pipe 5b2 of a pair lining 5b offers multiple U-lag, and the effect of this U-lag is when lining 5b assembles, and makes sleeve pipe 5b2 have outside deformation, allows by the dimensional fits of interference between sleeve pipe 5b2 outer rim and bracket holes inwall, reach the object fitted tightly.
In conjunction with see Fig. 9, the sleeve pipe 5b2 of lining 5b also has two effects: first, can prevent screw mandrel from directly contacting with support; The second, the side-play amount of screw mandrel can be prevented excessive.
In conjunction with see Fig. 7, Fig. 9, the bottom of lining 5b has the vibration damper plate 5b3 of band ripple glaze, the length of described vibration damper plate 5b3 is equal to or less than 1/2nd of nut 5a width, and a pair vibration damper plate 5b3 is arranged on the lower surface of nut 5a respectively, and is stuck between nut 5a and support 5c.Regulated by the vibration damper plate 5b3 of waveform configuration, damping effect during vertical tremor can be played.
Described lining 5b is synthetic material.Further, lining 5b is acetal plastic part.Polyformaldehyde has good Combination property and coloring, has higher modulus of elasticity, very high rigidity and hardness, and strength-to-density ratio and specific rigidity are close to metal; Within the scope of very wide temperature and humidity, all there is good self lubricity; Pulling strengrth, bending strength, creep resistant and excellent in fatigue, resistance to repeated stock, unloads recovery excellent; Friction coefficient is little, and resistance to abrasion is good, good stability of the dimension, surface gloss, has higher elasticity, and not temperature influence; Fatigue durability is good and not by humidity effect; Chemical proofing is excellent.If adopt other material, such as nylon material, it does not have the elasticity of polyformaldehyde, cannot shock resistance, cannot meet and reduces noise and reduce vibrating effect.
See Fig. 6 to Fig. 9, the feature that lining 5b coordinates with support 5c and nut 5a has following characteristics:
Adopt this version of lining 5b, make itself and support 5c form good snug fit, intensity can use Composite, and then realize vibration isolation and the function regulating gap.
The position degree that nut 5a assembles and straightness accuracy are easily guaranteed; Nut 5a is without the need to arranging rubber sleeve, easy to assembly.I-shaped structure 5b1 self has toughness, has certain self-regulation effect, when can prevent nut rotation and slide rail clash into and produce noise, vibration damper plate 5b3 down through waveform configuration regulates, can absorb the vibrations that when screw mandrel rotates, nut produces, setting range is comparatively large, also more stable.
Axially by lining 5b, nut 5a and support 5c can be isolated, prevent the Contact of metal and metal from producing noise.Horizontal lead screw mechanism under operation due to screw mandrel can with the through hole decentraction of support 5c, and cause nut 5a to shake up and down.Structure of the present utility model can ensure that nut 5a contacts with the wave signature of lining 5b at any time, prevents nut and support in operational process from clashing into and produces noise and vibration; Prevent screw mandrel from being driven by nut in rotation process and rotate other part of shock together, produce noise and vibration, lining increases wave signature and prevents screw mandrel from rotation process, making nut produce vibrations; Screw mandrel can be improved contact to produce with nut when rotating and shake and noise.
Claims (5)
1. regulate a nut assembly for screw mandrel before and after vehicle seats, it is characterized in that:
Described nut assembly comprises nut (5a), lining (5b), support (5c);
Described support (5c) is in concave shape, and support (5c) axially has a pair through hole passed for screw mandrel;
A pair lining (5b) is stuck in the through hole of support (5c), the lateral frame of lining (5b) and inner frame form I-shaped structure (5b1), lateral frame and the support (5c) of I-shaped structure (5b1) are fixed, and nut (5a) is fixed by inner frame;
Described lining (5b) is synthetic material.
2. before and after automotive seat as claimed in claim 1, regulate the nut assembly of screw mandrel, it is characterized in that: the bottom of described lining (5b) has the vibration damper plate (5b3) of band ripple glaze, the length of described vibration damper plate (5b3) is equal to or less than 1/2nd of nut (5a) width, a pair vibration damper plate (5b3) is spliced mutually, and is stuck between nut (5a) and support (5c).
3. regulate the nut assembly of screw mandrel before and after automotive seat as claimed in claim 1 or 2, it is characterized in that: multiple U-lag offered by the sleeve pipe of described lining (5b), so that elastic conjunction.
4. nut assembly as claimed in claim 1 or 2, is characterized in that: described support (5c) bottom has a pair screw.
5. nut assembly as claimed in claim 1 or 2, is characterized in that: described lining (5b) is acetal plastic part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009285.5U CN204383210U (en) | 2015-01-07 | 2015-01-07 | The nut assembly of screw mandrel is regulated before and after vehicle seats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520009285.5U CN204383210U (en) | 2015-01-07 | 2015-01-07 | The nut assembly of screw mandrel is regulated before and after vehicle seats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204383210U true CN204383210U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520009285.5U Active CN204383210U (en) | 2015-01-07 | 2015-01-07 | The nut assembly of screw mandrel is regulated before and after vehicle seats |
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| CN (1) | CN204383210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020158099A (en) * | 2019-03-25 | 2020-10-01 | 株式会社今仙電機製作所 | Seat slide device |
-
2015
- 2015-01-07 CN CN201520009285.5U patent/CN204383210U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020158099A (en) * | 2019-03-25 | 2020-10-01 | 株式会社今仙電機製作所 | Seat slide device |
| JP7339500B2 (en) | 2019-03-25 | 2023-09-06 | 株式会社今仙電機製作所 | seat slide device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200120, Shanghai, Pudong New Area, Cambridge Town, 451 Bridge Road Patentee after: Yanfeng Yanfeng seating Machinery Parts Co., Ltd. Address before: 200120, Shanghai, Pudong New Area, Cambridge Town, 451 Bridge Road Patentee before: Shanghai Yan cutting edge of a knife or a sword river gloomy seat mechanical part Co., Ltd |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 451 dieqiao Road, Kangqiao Town, Pudong New Area, Shanghai, 200120 Patentee after: Kaibo seat mechanical parts Co.,Ltd. Address before: 451 dieqiao Road, Kangqiao Town, Pudong New Area, Shanghai, 200120 Patentee before: YANFENG ADIENT SEAT MACHINERY PARTS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |