CN204075378U - The saw blade tension knob of reciprocating saw - Google Patents
The saw blade tension knob of reciprocating saw Download PDFInfo
- Publication number
- CN204075378U CN204075378U CN201420201800.5U CN201420201800U CN204075378U CN 204075378 U CN204075378 U CN 204075378U CN 201420201800 U CN201420201800 U CN 201420201800U CN 204075378 U CN204075378 U CN 204075378U
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- Prior art keywords
- saw blade
- knob
- knob body
- saw
- circular arc
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- 239000000463 material Substances 0.000 claims abstract description 10
- 230000001788 irregular Effects 0.000 claims description 14
- 239000007769 metal material Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 11
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 150000002739 metals Chemical class 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 239000000306 component Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 206010053615 Thermal burn Diseases 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a kind of saw blade tension knob of reciprocating saw, and described tension knob comprises knob body and saw blade keeper, and described saw blade keeper is embedded to be arranged in knob body.By the way, the saw blade tension knob weight of the utility model reciprocating saw significantly alleviates compared to conventional metals knob weight; Use plastic parts cost and then reduction; In addition, plastic material can absorb the vibrations of reciprocating saw in use, and when conventional metals knob can be avoided to use, heating such as to be scalded one's hand at the phenomenon, improves user comfort level.
Description
Technical field
The utility model relates to reciprocating tool field, particularly relates to a kind of saw blade tension knob of reciprocating saw.
Background technology
On market in product saw blade clamping structure, core component tension knob is required to be saw blade positioning element (tension pin or steel ball) and provides airtight arc working space, needs the impact of bearing tension pin simultaneously, therefore needs certain intensity.Simultaneously coordinate the tension knob of external handle stretch out shank portion because of need bear certain moment of torsion and service life wear requirements, also needed intensity.Adopt the technological formings such as metal casting and powder sintered or powder injection because of some general, then be equipped with machining mode and reach assembly precision.Therefore following problem is had: 1. complex forming technology, production capacity is low.2. cost is high.3. tension knob is all-metal heavier-weight, two places are functionally only had to need intensity, other position is all waste, and overweight saw blade folder can to having an impact to overall dynamic-balance, make vibrations large, in addition, having when metal tension knob uses for a long time heating scald one's hand etc. phenomenon, feel uncomfortable when causing user to operate.
Utility model content
The saw blade tension knob weight that the technical problem that the utility model mainly solves is to provide a kind of reciprocating saw is light and handy, compact conformation, low cost of manufacture, and when avoiding conventional metals knob to use, heating such as to be scalded one's hand at the phenomenon, raising user comfort level.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the saw blade tension knob providing a kind of reciprocating saw, described tension knob comprises knob body and saw blade keeper, and described saw blade keeper is embedded to be arranged in knob body.
In the utility model preferred embodiment, the inner side of described knob body comprises the irregular cycle that unequal first circular arc of curvature and the second circular sliding slopes are formed, and described saw blade keeper embeds the little length equaling the first circular arc and the larger circular arc of the second circular arc mean curvature of the length of knob body inner surface.
In the utility model preferred embodiment, the inner side of described knob body comprises the irregular cycle that unequal first circular arc of curvature and the second circular sliding slopes are formed, and described saw blade keeper embeds the little length equaling the first circular arc and the less circular arc of the second circular arc mean curvature of the length of knob body inner surface.
In the utility model preferred embodiment, the inner side of described knob body comprises the irregular cycle of unequal first circular arc of curvature and the formation of the second circular sliding slopes, and the length of described saw blade keeper embedding knob body inner surface is 0.1-1 times of the girth of irregular cycle.
In the utility model preferred embodiment, the length of described saw blade keeper embedding knob body inner surface is 0.2-0.6 times of the girth of irregular cycle.
In the utility model preferred embodiment, the length of described saw blade keeper embedding knob body inner surface is 0.25 to 0.5 times of irregular cycle girth inside knob body.
In the utility model preferred embodiment, the quality of described knob body is 2-10 times of the quality of saw blade keeper.
In the utility model preferred embodiment, described saw blade keeper comprises the first bulge-structure, described first bulge-structure and knob body tabling and extend to outside knob body.
In the utility model preferred embodiment, described saw blade keeper comprises the first bulge-structure, is provided with the second bulge-structure outside described knob body, and described first bulge-structure and the second bulge-structure tabling form the 3rd bulge-structure.
In the utility model preferred embodiment, described knob body is plastic cement material, and described saw blade keeper is metal material.
The beneficial effects of the utility model are: the saw blade tension knob weight of the utility model reciprocating saw significantly alleviates compared to conventional metals knob weight; Use plastic parts cost and then reduction; In addition, plastic material can absorb the vibrations of reciprocating saw in use, and when conventional metals knob can be avoided to use, heating such as to be scalded one's hand at the phenomenon, improves user comfort level.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the perspective view of saw blade tension knob one preferred embodiment of reciprocating saw;
Fig. 2 is the decomposition texture schematic diagram of reciprocating saw;
Fig. 3 is the partial structurtes schematic diagram of Fig. 2;
Fig. 4 is the locking state schematic diagram of reciprocating saw shown in Fig. 2;
Fig. 5 is the release conditions schematic diagram of reciprocating saw shown in Fig. 2;
Fig. 6 is the decomposition texture schematic diagram of Fig. 1;
Fig. 7 is the perspective view of another preferred embodiment of saw blade tension knob of reciprocating saw;
Fig. 8 is the perspective view of another preferred embodiment of saw blade tension knob of reciprocating saw;
Fig. 9 is the structural representation of reciprocating saw shown in Fig. 2;
In accompanying drawing, the mark of each parts is as follows: 1, housing, and 2, tool changing spanner, 3, reciprocating lever, 4, clamping device, 5, tension knob, 6, positioning sleeve, 7, elastic component, 8, bearing, 9, knob body, 10, saw blade keeper, 11, saw blade, 12, spanner reduction torsion spring, 13, tooth case fore shell, 14, front apron, the 15, first circular arc, the 16, second circular arc, 17, the first bulge-structure, the 18, second bulge-structure, the 19, the 3rd protrusion means.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 2, Fig. 3 and Fig. 9, a kind of reciprocating saw, comprise: housing 1, housing 1 is provided with tool changing spanner 2, reciprocating lever 3 and clamping device 4 is provided with in housing 1, reciprocating lever 3 and clamping device 4 are connected, and housing 1 also comprises tooth case fore shell 13 and front apron 14, and tool changing spanner 2 is connected on front apron 14 by having strong market potential.Clamping device 4 comprises tension knob 5, positioning sleeve 6, elastic component 7 and bearing 8, tension knob 5 is equipped with on positioning sleeve 6, bearing 8 is connected with positioning sleeve 6, elastic component 7 is arranged between tension knob 5 and positioning sleeve 6, and be connected with torsion spring seat, positioning sleeve 6 is provided with through hole, elastic component is connected with bearing 8 through through hole, elastic component 7 is torsion spring, and bearing 8 is torsion spring seat.The front end of reciprocating lever 3 is through positioning sleeve 6, and the front end cooperation of reciprocating lever 3 is provided with saw blade 11.
As Fig. 1 and Fig. 6, tension knob 5 comprises knob body 9 and saw blade keeper 10, and saw blade keeper 10 is embedded to be arranged in knob body 9, and knob body 5 is plastic material, and saw blade keeper 10 is metal material.Saw blade keeper 10 comprises the first bulge-structure 17, is provided with the second bulge-structure 18, first bulge-structure 17 and the second bulge-structure 18 tabling formation the 3rd bulge-structure 19 outside knob body 9.Tool changing spanner 2 contacts with tension knob 5, tool changing spanner 2 is connected with spanner reduction torsion spring 12, and the position being adjusted saw blade keeper 10 by tool changing spanner 2 is locked and discharges saw blade.
As Fig. 4 and Fig. 5, the inner side of knob body 9 comprises the irregular cycle that unequal first circular arc 15 of curvature and the second circular arc 16 are connected to form, saw blade keeper 10 embeds the little length equaling the first circular arc 15 and the larger circular arc of the second circular arc 16 mean curvature of the length of knob body 9 inner surface, i.e. the little length equaling the first circular arc 15.Saw blade keeper 10 embeds knob body 9 and tension knob is installed simply, and internal structure is more compact.
In addition, the length that saw blade keeper 10 embeds knob body 9 inner surface can also be the little length equaling the first circular arc 15 and the less circular arc of the second circular arc 16 mean curvature, i.e. the length of the second circular arc 16.
In addition, according to actual needs, the length that saw blade keeper 9 embeds knob body 10 inner surface can be the 0.1-1 of the girth of irregular cycle doubly, can be preferably 0.2-0.6 doubly.Preferably can be 0.25 to 0.5 times further, now, metal saw blade keeper 10 consumption is minimum, and the oeverall quality of tension knob 5 is the lightest, and result of use is best.
In addition, the quality of knob body 9 can be 2-10 times of the quality of saw blade keeper 10, the quality that saw blade keeper 10 due to Confucian classics material accounts for knob body 9 is less, therefore the saw blade keeper of the knob of plastic cement material and metal material significantly alleviates compared to conventional metals knob weight; Use plastic parts manufacturing cost and then reduction; In addition, plastic material can absorb the vibrations of reciprocating saw in use, plays certain damping effect, and when conventional metals knob can be avoided to use heating scald one's hand etc. phenomenon, improve comfort.
As shown in Figure 7, tension knob 5 comprises knob body 9 and saw blade keeper 10, saw blade keeper 10 is embedded to be arranged in knob body 9, knob body 9 is plastic material, saw blade keeper 10 is metal material, saw blade keeper 10 comprises the first bulge-structure 17, first bulge-structure 17 and extends to outside knob body 9 with knob body 9 tabling, drives the first bulge-structure 17 thus the position of adjustment saw blade keeper 10 locks and discharge saw blade by tool changing spanner 2.
As shown in Figure 8, tension knob 5 comprises knob body 9 and saw blade keeper 10, saw blade keeper 10 is embedded to be arranged in knob body 9, knob body 9 is plastic material, saw blade keeper 10 is metal material, saw blade keeper 10 is embedded to be arranged in knob body 9, saw blade keeper 10 and knob body 9 are not all provided with bulge-structure, this structure is applicable in the reciprocating saw not with tool changing spanner 2, it is by manually rotating tension knob 5, and then the position of adjustment saw blade keeper 10 unlocks and discharges saw blade.
The present invention compared with prior art, has saw blade tension knob lightweight, compact conformation, low cost of manufacture, and when simultaneously conventional metals knob can be avoided to use, heating such as to be scalded one's hand at the phenomenon, raising user comfort level.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. a saw blade tension knob for reciprocating saw, described tension knob comprises knob body and saw blade keeper, and described saw blade keeper is embedded to be arranged in knob body, and described knob body is plastic cement material, and described saw blade keeper is metal material.
2. the saw blade tension knob of reciprocating saw according to claim 1, it is characterized in that, the inner side of described knob body comprises the irregular cycle that unequal first circular arc of curvature and the second circular sliding slopes are formed, and described saw blade keeper embeds the little length equaling the first circular arc and the larger circular arc of the second circular arc mean curvature of the length of knob body inner surface.
3. the saw blade tension knob of reciprocating saw according to claim 1, it is characterized in that, the inner side of described knob body comprises the irregular cycle that unequal first circular arc of curvature and the second circular sliding slopes are formed, and described saw blade keeper embeds the little length equaling the first circular arc and the less circular arc of the second circular arc mean curvature of the length of knob body inner surface.
4. the saw blade tension knob of reciprocating saw according to claim 1, it is characterized in that, the inner side of described knob body comprises the irregular cycle of unequal first circular arc of curvature and the formation of the second circular sliding slopes, and the length of described saw blade keeper embedding knob body inner surface is 0.1-1 times of the girth of irregular cycle.
5. the saw blade tension knob of reciprocating saw according to claim 4, is characterized in that, the length of described saw blade keeper embedding knob body inner surface is 0.2-0.6 times of the girth of irregular cycle.
6. the saw blade tension knob of reciprocating saw according to claim 5, is characterized in that, the length of described saw blade keeper embedding knob body inner surface is 0.25 to 0.5 times of irregular cycle girth inside knob body.
7. the saw blade tension knob of reciprocating saw according to claim 1, is characterized in that, the quality of described knob body is 2-10 times of the quality of saw blade keeper.
8. according to the saw blade tension knob of the arbitrary described reciprocating saw of claim 1-7, it is characterized in that, described saw blade keeper comprises the first bulge-structure, described first bulge-structure and knob body tabling and extend to outside knob body.
9. according to the saw blade tension knob of the arbitrary described reciprocating saw of claim 1-7, it is characterized in that, described saw blade keeper comprises the first bulge-structure, is provided with the second bulge-structure outside described knob body, and described first bulge-structure and the second bulge-structure tabling form the 3rd bulge-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201800.5U CN204075378U (en) | 2014-04-24 | 2014-04-24 | The saw blade tension knob of reciprocating saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201800.5U CN204075378U (en) | 2014-04-24 | 2014-04-24 | The saw blade tension knob of reciprocating saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204075378U true CN204075378U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201800.5U Expired - Lifetime CN204075378U (en) | 2014-04-24 | 2014-04-24 | The saw blade tension knob of reciprocating saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204075378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12053832B2 (en) | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
-
2014
- 2014-04-24 CN CN201420201800.5U patent/CN204075378U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12053832B2 (en) | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.65-1 Xinggang Road, Zhonglou Economic Development Zone, Changzhou City, Jiangsu Province Patentee after: Gelibo (Jiangsu) Co.,Ltd. Address before: 213023 Jiangsu city in Changzhou Province Economic Development Zone Xingang Zhonglou District Tower Road No. 65 Patentee before: CHANGZHOU GLOBE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150107 |
|
| CX01 | Expiry of patent term |