CN203410426U - Scraping arm combined part for wiper - Google Patents
Scraping arm combined part for wiper Download PDFInfo
- Publication number
- CN203410426U CN203410426U CN201320382277.6U CN201320382277U CN203410426U CN 203410426 U CN203410426 U CN 203410426U CN 201320382277 U CN201320382277 U CN 201320382277U CN 203410426 U CN203410426 U CN 203410426U
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- CN
- China
- Prior art keywords
- scraping arm
- arm
- bearing pin
- scraping
- type groove
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a scraping arm combined part, in particular to a scraping arm combined part for a wiper and belongs to the technical field of manufacturing of automobile accessories. The utility model provides the scraping arm combined part for the wiper, which can be stably locked in the maintenance and repairing process. the scraping arm combined part comprises a connecting body, a large scraping arm, a tension spring and a pin shaft; pin shaft mounting holes are correspondingly arranged in the connecting body and the large scraping arm; the connecting body and the large scraping arm are connected into a whole by the pin shaft mounted in the pin shaft mounting holes; two ends of the tension spring are respectively connected with the connecting body and the large scarping arm; an S-shaped groove is arranged at the tail part of the large scraping arm; the connecting body is provided with an arc boss matched with the S-shaped groove; the S-shaped groove and the arc boss are mutually matched and are positioned at the outer side of the middle position of the tension spring; the large scraping arm can rotate around the arc boss under the external force action through the S-shaped groove.
Description
Technical field
The utility model relates to a kind of arm assembly of scraping, and especially relates to a kind of arm assembly of scraping for rain brush, belongs to vehicular spare parts manufacturing technology field.
Background technology
Air regulator wiper is for improving special setting of visbility of automobile chaufeur when rainy day and snow sky travel.Wiper assembly contains electrical motor, retarder, four-bar linkage, scrapes water arm axle, swept area of wiper blade assembly etc.Actuating motor when driver presses the switch of wiper, the rotating speed of electrical motor increases torsion effect driving swing arm through the deceleration of worm and gear, swing arm drives four-bar linkage, and four-bar linkage drives the rotating shaft being arranged on front coaming plate to swing, and finally by rotating shaft, drives rain shaving blade to sweep Windshield.Rear air regulator wiper, only on electrical motor, an additional compact switching mechanism is generally rack pinion or four-bar linkage, and rotation is become to swing.Wiper is important safety member, and it must remove rainwater, snow and dirt effectively; Can under 80 degree high temperature and subzero 30 degree low temperature, work; The objectionable impurities corrosion such as energy is antiacid, alkali, salt.
And scrape brush assemblies, belong to consumable accessory, particularly scraping blade.So to scraping the daily attention of water assembly, just seem important especially.When scraping blade being safeguarded or changes, just require rear windscreen wiper to scrape arm component and can lift flexibly also self-locking, facilitate us to carry out maintenance work.
Existing rear windscreen wiper is scraped arm assembly and is comprised large scraping arm, connector, extension spring.The rear windscreen wiper of described structure is scraped the limit self that arm assembly realizes and is had the following disadvantages: due to the realization of described structure auto-lock function, mainly to lean on the profile of extension spring to coordinate realization with the extension spring groove on large scraping arm, and this self-locking mode, the restoring force that can provide is less, when rear wiper is maintained, once scrape arm assembly because of maloperation or be subject to the power that non-subjectivity applies, scrape arm assembly in the very easily resilience of self-locking seat, thereby cause scraping the accidental injury of arm configuration, even rear front windshield glass is caused to irreversible infringement.
Utility model content
Technical problem to be solved in the utility model is: a kind of arm assembly of scraping for rain brush that can stablize self-locking in maintenance, servicing operations is provided.
For solving the problems of the technologies described above adopted technical scheme, be: a kind of arm assembly of scraping for rain brush, comprise connector, large scraping arm, extension spring and bearing pin, the corresponding bearing pin mounting hole that is provided with respectively on described connector and large scraping arm, described connector is connected as a whole with large scraping arm by the bearing pin being arranged in described bearing pin mounting hole, the two ends of described extension spring are connected with large scraping arm with described connector respectively, afterbody at described large scraping arm is provided with " S " type groove, on described connector, be provided with the arc convex with described " S " type groove fit, the outside that described " S " the type groove cooperatively interacting and arc convex are positioned at described extension spring middle part, described large scraping arm can rotate around described arc convex under external force by described " S " type groove.
Further, the bearing pin mounting hole being arranged on described large scraping arm is elliptical aperture, between described bearing pin and described elliptical aperture, is free-running fit.
Further, the bearing pin mounting hole being arranged on described connector is manhole, between described bearing pin and described manhole, is interference fit.
The beneficial effects of the utility model are: because the afterbody at described large scraping arm is provided with " S " type groove, on described connector, be provided with the arc convex with described " S " type groove fit, and described " S " the type groove that this is cooperatively interacted and the arc convex outside that is arranged into described extension spring middle part.Like this, when needs maintain rear wiper, described large scraping arm rotates around described arc convex under external force by described " S " type groove, and after rotateing in place, by described " S " type groove and the arc convex cooperatively interacting, in the effect of extension spring, play good locking action, thereby guaranteed the stable self-locking of rear wiper, described in having avoided, scraped the accidental injury of scraping arm configuration causing after arm assembly self-locking was lost efficacy and even rear front windshield glass is caused to irreversible infringement.
Accompanying drawing explanation
Fig. 1 is that a kind of master who scrapes arm assembly for rain brush of the utility model cuts open structural representation;
Fig. 2 is the A portion enlarged drawing of Fig. 1.
In figure, be labeled as: connector 1, large scraping arm 2, extension spring 3, bearing pin 4, bearing pin mounting hole 5, " S " type groove 6, arc convex 7.
The specific embodiment
A kind of arm assembly of scraping for rain brush that can stablize self-locking in maintenance, servicing operations that the utility model provides as shown in Figure 1 and Figure 2.The described arm assembly of scraping comprises connector 1, large scraping arm 2, extension spring 3 and bearing pin 4, the corresponding bearing pin mounting hole 5 that is provided with respectively on described connector 1 and large scraping arm 2, described connector 1 is connected as a whole with large scraping arm 2 by the described bearing pin 4 being arranged in described bearing pin mounting hole 5, the two ends of described extension spring 3 are connected with large scraping arm 2 with described connector 1 respectively, afterbody at described large scraping arm 2 is provided with " S " type groove 6, on described connector 1, be provided with the arc convex 7 coordinating with described " S " type groove 6, the outside that described " S " type groove 6 cooperatively interacting and arc convex 7 are positioned at described extension spring 3 middle parts, described large scraping arm 2 can rotate around described arc convex 7 under external force by described " S " type groove 6.Because the afterbody at described large scraping arm 2 is provided with " S " type groove 6, on described connector 1, be provided with the arc convex 7 coordinating with described " S " type groove 6, and described " S " type groove 6 that this is cooperatively interacted and arc convex 7 outside that is arranged into described extension spring 3 middle parts.Like this, when needs maintain rear wiper, described large scraping arm 2 rotates around described arc convex 7 under external force by described " S " type groove 6, and after rotateing in place, by described " S " type groove 6 and the arc convex 7 cooperatively interacting, in the effect of extension spring 3, play good locking action, thereby guaranteed the stable self-locking of rear wiper, described in having avoided, scraped the accidental injury of scraping arm configuration causing after arm assembly self-locking was lost efficacy and even rear front windshield glass is caused to irreversible infringement.
In above-mentioned embodiment, in order to impose less external force in the time need to maintaining described rear wiper, can make described rotation, reduce excessive external force to described damage of scraping arm assembly, the bearing pin mounting hole 5 being arranged on described large scraping arm 2 is elliptical aperture, between described bearing pin 4 and described elliptical aperture, is free-running fit.Like this, when applying external force and pulling described large scraping arm 2, on described large scraping arm 2, just can in described elliptical aperture, move freely, thereby reduce the outer application force that applies.Simultaneously, again avoid described bearing pin to rotate in the bearing pin mounting hole 5 on described connector 1 with the rotation of described large scraping arm 2, cause the wearing and tearing of this bearing pin mounting hole 5, being arranged on described connector 1 bearing pin mounting hole 5 is manhole, between described bearing pin 4 and described manhole, is interference fit.
Claims (3)
1. the arm assembly of scraping for rain brush, comprise connector (1), large scraping arm (2), extension spring (3) and bearing pin (4), the corresponding bearing pin mounting hole (5) that is provided with respectively on described connector (1) and large scraping arm (2), described connector (1) is connected as a whole with large scraping arm (2) by the described bearing pin (4) being arranged in described bearing pin mounting hole (5), the two ends of described extension spring (3) are connected with large scraping arm (2) with described connector (1) respectively, it is characterized in that: the afterbody at described large scraping arm (2) is provided with " S " type groove (6), on described connector (1), be provided with the arc convex (7) coordinating with described " S " type groove (6), described " S " the type groove (6) cooperatively interacting and arc convex (7) are positioned at the outside of described extension spring (3) middle part, described large scraping arm (2) can rotate around described arc convex (7) under external force by described " S " type groove (6).
2. a kind of arm assembly of scraping for rain brush according to claim 1, is characterized in that: the bearing pin mounting hole (5) being arranged on described large scraping arm (2) is elliptical aperture, between described bearing pin (4) and described elliptical aperture, is free-running fit.
3. a kind of arm assembly of scraping for rain brush according to claim 1 and 2, is characterized in that: the bearing pin mounting hole (5) that is arranged on (1) on described connector is manhole, between described bearing pin (4) and described manhole, is interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320382277.6U CN203410426U (en) | 2013-06-28 | 2013-06-28 | Scraping arm combined part for wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320382277.6U CN203410426U (en) | 2013-06-28 | 2013-06-28 | Scraping arm combined part for wiper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203410426U true CN203410426U (en) | 2014-01-29 |
Family
ID=49973341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320382277.6U Expired - Fee Related CN203410426U (en) | 2013-06-28 | 2013-06-28 | Scraping arm combined part for wiper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203410426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107074202A (en) * | 2014-10-22 | 2017-08-18 | 罗伯特·博世有限公司 | Governor motion, especially leaning device and device for mounting windshield wiper or windshield wiper for device for mounting windshield wiper |
-
2013
- 2013-06-28 CN CN201320382277.6U patent/CN203410426U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107074202A (en) * | 2014-10-22 | 2017-08-18 | 罗伯特·博世有限公司 | Governor motion, especially leaning device and device for mounting windshield wiper or windshield wiper for device for mounting windshield wiper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20170628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |