CN205186079U - Inertia piece - Google Patents
Inertia piece Download PDFInfo
- Publication number
- CN205186079U CN205186079U CN201520887557.1U CN201520887557U CN205186079U CN 205186079 U CN205186079 U CN 205186079U CN 201520887557 U CN201520887557 U CN 201520887557U CN 205186079 U CN205186079 U CN 205186079U
- Authority
- CN
- China
- Prior art keywords
- counter weight
- inertial mass
- main body
- weight strip
- pusher dog
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an inertia piece contains main part, counter weight strip and pusher dog, and the fast cross section of inertia is circular, main part centre of a circle department has seted up the equipment hole, and the equipment hole is provided with the counter weight strip to radial extension of both sides circumference, and the pusher dog sets up on the edge of main part and the center of the two line through the equipment hole, the excircle edge of main part is provided with sunkenly, each apex angle and the root of pusher dog outer fringe all set up to the fillet, some of edge that the counter weight strip is close to the excircle is provided with the chamfer. The utility model provides a construction improvement's inertia piece, at effective abbreviation the process, still improved inertia piece's intensity when having improved production efficiency, strengthened the validity of safety belt.
Description
Technical field
The utility model relates to a kind of Webbing retractor accessory, particularly a kind of inertial mass of safety strap.
Background technology
Inertial mass is the crucial accessory on safety strap, and inertial mass excircle dimension requires must in specification, if size exceeds specification, safety strap can be caused to lose efficacy, and consequence is hardly imaginable.The production and processing technology of inertial mass adopts zinc alloy casting shaping usually, and due to the characteristic of die casting, it is large cast gate that inertial mass enters cast gate, and after removing cast gate, can leave the cast gate being about 0.05-0.2mm and remain, this can strengthen outside diameter, causes dimension ultra-specification.Often rely on a large amount of manpower to remove cast gate in prior art to remain to ensure excircle dimension, cause production efficiency low, and time have perforated to remove and residually do not remove clean phenomenon, and then affect the quality of overall inertial mass.
Diecast parts cast gate remains the impact on inertial mass size, is the unavoidable technical barrier of whole Die Casting Industry.Therefore, the utility model carries out structure optimization for inertial mass, and object is exactly by design modification inertial mass structure, but do not affect inertial mass function, and cast gate can be avoided to remain impact on inertial mass size and function, thus reach saving manpower, that guarantees both quality and quantity completes customer demand.
Utility model content
In order to overcome defect existing in prior art, the utility model provides a kind of structure improved inertial mass, is effectively simplifying operation, is also improving the intensity of inertial mass while improve production efficiency, strengthening the validity of safety strap.
A kind of inertial mass of the present utility model, comprises main body, counter weight strip and pusher dog,
The fast cross-sectional plane of inertia is circular;
Main body circle centre position offers assembly hole, and assembly hole extendedly has counter weight strip to both sides circumference is radial, on the edge that pusher dog is arranged at main body and the two line by the center of assembly hole;
The outer circular edge place of main body is provided with depression;
Each drift angle of pusher dog outer rim and root are all set to fillet;
Counter weight strip is provided with chamfering near a part for the seamed edge of cylindrical.
Further, inertial mass also comprises two pillar stiffeners being arranged at side identical with counter weight strip in main body, and two pillar stiffener lines are by the center of circle of main body.
Further, the height of pillar stiffener is greater than the height of counter weight strip.
Further, depression is of a size of 0.35mm.
Owing to adopting above technical scheme, the utility model compared with prior art tool has the following advantages:
1. the cast gate that the concave design on inertial mass cylindrical produces when efficiently avoid die casting remains the impact on the overall excircle dimension of inertial mass, thus eliminate completely artificial remove residual, correct size operation, effectively improve work efficiency;
2. each drift angle of pusher dog is set to fillet, not only reduces the intensity that stress is concentrated, improve pusher dog 3, also helps the filling of zinc alloy filler, avoids the generation of owing casting and bubble;
3. the edge chamfering of counter weight strip can promote the intensity of the corresponding rigging position of the plastic fitting coordinated with it, and the safety strap preventing the unexpected fracture of plastic fitting during belt movement from causing lost efficacy, and promotes the validity of safety strap;
4. the interpolation of pillar stiffener not only can the weight of compensation depressions and counter weight strip disappearance, can also play and support the effect of end face, make inertial mass that counter weight strip can not be made when rotary motion to contact with the end face arranged thereon, to reduce to rub.
Accompanying drawing explanation
Figure 1A and 1B is respectively the schematic diagram of the inertial mass of prior art;
Fig. 2 A and 2B is respectively the schematic diagram according to inertial mass of the present utility model.
Description of reference numerals:
1 main body, 2 counter weight strips, 3 pusher dogs, 4 depressions, 5 pillar stiffeners.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Figure 1A and 1B is respectively the schematic diagram of the inertial mass of prior art.Come with reference to Fig. 2 A and 2B according to inertial mass of the present utility model in conjunction with Figure 1A and 1B.Inertial mass of the present utility model comprises main body 1, counter weight strip 2 and pusher dog 3.Main body 1 circle centre position offers assembly hole, and two counter weight strips 2 are extended to main body 1 outer circular edge by assembly hole.As shown in Figure 2 A and 2B, the cylindrical of the main body 1 of inertial mass is provided with depression 4, in an embodiment of the present utility model, this depression 4 is of a size of 0.35mm.This depression 4 position can be used for placing cast gate in casting cycle, even if cast gate has the residual overall outside diameter that also can not have influence on workpiece, thus thoroughly eliminate the residual operation of artificial removal's cast gate, in turn ensure that the size of workpiece simultaneously.
Each drift angle of pusher dog 3 is all set to fillet, compared with the wedge angle of prior art, more smooth and easy when pusher dog 3 of the present utility model moves, and there will not be stuck phenomenon, can strengthen the validity of safety strap.Root is set to fillet, not only reduces stress and concentrate, promote the intensity of pusher dog; The filling of zinc alloy stream when also helping die casting, avoids die casting to owe to cast and the generation of bubble.
Counter weight strip 2 is set to chamfering near a part for the seamed edge of cylindrical.Those skilled in the art should be understood that, counter weight strip 2 in inertial mass need with supporting plastic fitting with the use of.The setting of local chamfering can be that corresponding plastic fitting increases strengthening rib, and promote the intensity of the corresponding rigging position of plastic fitting, the safety strap preventing the unexpected fracture of plastic fitting during belt movement from causing lost efficacy, and promoted the validity of safety strap.
Inertial mass also comprises two pillar stiffeners 5 being arranged at side identical with counter weight strip 2 in main body 1, the line of two pillar stiffeners 5 is by main body 1 center of circle, wherein the height of pillar stiffener 5 is greater than the height of counter weight strip 2, and in an embodiment of the present utility model, pillar stiffener 5 is higher than counter weight strip 20.1mm.The increase of pillar stiffener 5 makes inertial mass that counter weight strip 2 can not be made to contact with the end face arranged thereon when rotary motion, thus reduces friction drag, improves the validity of safety strap.And the existence of pillar stiffener 5 can also compensate the weight that above-mentioned depression 4 and chamfering are lost, to ensure that the overall weight of inertial mass is not suffered a loss.
Inertial mass of the present utility model substantially envisages the impact of casting cycle on workpiece oeverall quality, by suitably adjusting conventional inertia block structured, effectively simplify operation, reduce time and the cost of production, also in the original performance basis of inertial mass, improve intensity further, strengthen the validity of safety strap.
The above embodiment only have expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (4)
1. an inertial mass, comprises main body, counter weight strip and pusher dog, it is characterized in that,
The fast cross-sectional plane of described inertia is circular;
Described main body circle centre position offers assembly hole, and described assembly hole extendedly has described counter weight strip to both sides circumference is radial, on the edge that described pusher dog is arranged at described main body and the two line by the center of described assembly hole;
The outer circular edge place of described main body is provided with depression;
Each drift angle and the root of described pusher dog outer rim are all set to fillet;
Described counter weight strip is provided with chamfering near a part for the seamed edge of cylindrical.
2. inertial mass according to claim 1, is characterized in that, described inertial mass also comprises two pillar stiffeners being arranged at side identical with described counter weight strip in described main body, and described two pillar stiffener lines are by the center of circle of described main body.
3. inertial mass according to claim 2, is characterized in that, the height of described pillar stiffener is greater than the height of described counter weight strip.
4. inertial mass according to claim 1, is characterized in that, described depression is of a size of 0.35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520887557.1U CN205186079U (en) | 2015-11-09 | 2015-11-09 | Inertia piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520887557.1U CN205186079U (en) | 2015-11-09 | 2015-11-09 | Inertia piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205186079U true CN205186079U (en) | 2016-04-27 |
Family
ID=55779100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520887557.1U Withdrawn - After Issue CN205186079U (en) | 2015-11-09 | 2015-11-09 | Inertia piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205186079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216743A (en) * | 2015-11-09 | 2016-01-06 | 富乐压铸(太仓)有限公司 | A kind of inertial mass |
-
2015
- 2015-11-09 CN CN201520887557.1U patent/CN205186079U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216743A (en) * | 2015-11-09 | 2016-01-06 | 富乐压铸(太仓)有限公司 | A kind of inertial mass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160427 Effective date of abandoning: 20171201 |
|
| AV01 | Patent right actively abandoned |