CN1277657C - Swing spanner improved structure - Google Patents
Swing spanner improved structure Download PDFInfo
- Publication number
- CN1277657C CN1277657C CN 03155744 CN03155744A CN1277657C CN 1277657 C CN1277657 C CN 1277657C CN 03155744 CN03155744 CN 03155744 CN 03155744 A CN03155744 A CN 03155744A CN 1277657 C CN1277657 C CN 1277657C
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- Prior art keywords
- driving head
- tooth
- head
- spanner
- swing
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- Expired - Lifetime
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Abstract
The present invention provides an improved swing spanner structure which is mainly composed of a driving head and a grab handle pivoted on the driving head, wherein one end of the driving head can be used for driving a screw piece, the other end of the driving head is provided with a pivoting part which approximately presents a convex shape, one end of the grab handle corresponding to the pivoting part of the driving head is provided with a clamping part which approximately presents a concave shape, the pivoting part penetrates through and is pivoted with the clamping part by a pin to cause the driving head and the grab handle to generate relative pivoting swing, a clamping mechanism is arranged in the grab handle, and the relative pivoting swing between the driving head and the grab handle can be limited by the clamping mechanism in a selective way. The present invention is characterized in that the outer edge of the pivoting part of the driving head comprises a first part and a second part, wherein the first part is provided with teeth, the teeth are oppositely positioned at the wrenching direction end of the spanner, the second part is provided with a circular arc surface, and the outer edge of the circular arc surface is higher than the tooth roots of the teeth. In this way, when the spanner is wrenched, the thick wall of the second part can bear large force to not generate fracture or damage, and the torque force which can be borne by the spanner can be effectively enhanced.
Description
Technical field
The present invention relates to a kind of hand-held tool spanner, refer to a kind of improvement structure that is hubbed at the swing-head spanner that the lever of driving head forms by a driving head and especially.
Background technology
Since the human own civilization, hand-held tool just occupies a tiny space, and since the screw invention, spanner just occupy most important status in the hand-held tool field, and common articles for use in daily life, furniture, or worker, employed machinery in the commerce, power tool, nearly all can use cooperating of bolt and nut or screw, use the purpose that reaches fixing or interlocking, thus, be used for locking or the pine oil bolt, the spanner of nut, just become the idea of work on the spot person indispensable hand-held tool, especially DIY in vogue after, in many consumer families, especially at multi-form, the bolt and the nut of size have the set of tools of different operating characteristics certainly.
With reference to Fig. 1 and Fig. 2, the driving head 10 that shows the prior art swing-head spanner, number the patent case No. 380468 as annex one Taiwan patent announcement, the hypomere of this driving head 10 is made as pivot portion 11, the outer rim of this pivot portion 11 forms arc surface, and be provided with tooth 12 in whole arc surface, the stage casing of this pivot portion 11 also laterally is provided with a pin-and-hole 13.It should be noted that because the whole arc surface of pivot portion 11 outer rims all is provided with tooth 12 make that the meat of pivot portion 11 is thick in the relative minimizing of the setting of tooth 12, the meat that the tooth root of tooth 12 and pin-and-hole are 13 is thick to be L.With reference to Fig. 3, the stress of the pivot portion 11 of display driver head 10 when pulling operation, when swing-head spanner was pulled clockwise, stressed section 13a, 13b of driving head 10 can directly bear pull force.The thick L of meat of right stressed section 13b reduces because of the setting of tooth 12, so when the pull force that puts on swing-head spanner was excessive, the meat wall of this stressed section 13b had the possibility that produces slight crack 14 or destroy, and seriously influences the torque value that spanner can bear.Sacrifice the most important torque value of spanner for the setting of asking location structure, be evident as a design of putting the cart before the horse.
With reference to Fig. 3 and Fig. 4, the driving head 20 that shows another known swing-head spanner, number the patent case No. 421111 as annex two Taiwan patent announcements, the hypomere of this driving head 20 is made as pivot portion 21, the outer rim of this pivot portion 21 forms arc surface, the left side of this arc surface is provided with tooth 22, the arc surface 23 that the right-hand part of arc surface contracts in being provided with, and the stage casing of this pivot portion 21 also laterally is provided with a pin-and-hole 24.Because the left side of pivot portion 21 outer rims is provided with tooth 12, makes that the meat of left side 11 is thick in the relative minimizing of the setting of tooth 12, the meat that the tooth root of tooth 22 and pin-and-hole are 24 is thick to be L.With reference to annex 2 the 6th figure, importantly, when the product of pulling slides onto the right-hand part of pivot portion 21 outer rims, can rotate freely, simultaneously so the arc surface 23 that the right-hand part of pivot portion 21 outer rims contracts in need being made as for making driving head 20.It should be noted that this arc surface 23 must be a little less than the tooth root of tooth 21, the just left and right sides slippage smoothly of product of pulling.If arc surface 23 is made as the tooth root a little more than tooth 21, the product of pulling can be subjected to the block of arc surface 23 and can't slide onto on the arc surface 23.Therefore, making that the meat of pivot portion 21 outer rim right-hand parts is thick more reduces than the left side, and the meat that arc surface 23 and pin-and-hole are 24 is thick to be L1 (L1＜L).With reference to Fig. 5, the stress of the pivot portion 21 of display driver head 20 when pulling operation, when swing-head spanner was pulled clockwise, stressed section 24a, 24b of driving head 20 can directly bear pull force.The thick L1 of meat of right stressed section 24b significantly reduces because of structural limitations, so when the pull force that puts on swing-head spanner was excessive, the meat wall of this stressed section 24b very easily produced slight crack 25 or destroys, and seriously influences the torque value that spanner can bear.Sacrifice the most important torque value of spanner for the setting of asking location structure, be evident as a design of putting the cart before the horse.The many disadvantages that above-mentioned known swing-head spanner is derived is researched and developed improved necessity in fact.
Therefore, the present invention's problem of wanting to get rid of or alleviating Prior Art at least and met with.
Summary of the invention
The technical problem of " swing-head spanner improvement structure " of the present invention institute's desire solution is the tooth of known swing-head spanner pivot portion, because of the full-depth tooth setting or be subjected to the restriction of clamping structure, make the tooth root of tooth and arc surface and the thick relative minimizing of meat between pin-and-hole, when the pull force that puts on swing-head spanner is excessive, the meat wall that driving head is stressed section very easily produces slight crack or destruction, seriously influences the torque value that spanner can bear.
The purpose of this invention is to provide a kind of swing-head spanner and improve structure, the pivot portion outer rim of its driving head forms arc surface, first of this pivot portion partly is provided with tooth, pivot portion second arc surface partly then is that full meat is thick, without any the thick minimizing of meat, the meat between arc surface and pin-and-hole is thick to be L2 (L2＞L＞L1).When applying pull force in swing-head spanner, its abundant meat wall of stressed section can bear bigger strength, is difficult for producing slight crack or destruction, has effectively promoted the torque value that swing-head spanner can bear.Its pivot portion first tooth partly of being located at driving head can be indent tooth or half indent tooth, the tooth root of tooth all is lower than pivot portion second arc surface partly, the arrow points that indicates mark on the position that this tooth is provided with and the driving head is identical, and the arc surface of pivot portion second part is that full meat is thick.
For reaching above-mentioned purpose, the technical characterictic that swing-head spanner of the present invention adopts is as follows:
A kind of swing-head spanner improves structure, mainly the lever that is hubbed at driving head by a driving head and is formed, wherein an end of driving head can be in order to drive spiral shell spare, the end in addition of driving head is provided with the pivot portion that is convex, and lever is provided with the card division that is spill with respect to an end of driving head pivot portion, and wear pivot joint by a pin, so that driving head can produce relative pivot pendulum with lever, in this lever and be provided with a clip mechanism, this clip mechanism optionally limits driving head and puts with the relative pivot between lever, it is characterized in that:
Above-mentioned driving head includes first end and second end, this first end is in order to drive spiral shell spare, this second end is provided with a pivot portion, this pivot portion outer rim includes first part and second partly, first of this pivot portion outer rim partly is provided with tooth, what the position of this tooth setting was positioned at spanner relatively pulls the direction end, and second of this pivot portion outer rim partly is provided with arc surface, and the outer rim of this arc surface is higher than first tooth root of tooth partly;
Above-mentioned lever comprises pivot end and handle end, and the card division that this pivot end is spill has two jaws, and this lever pivot end has a button hole and a hole clipping, and this button hole is communicated with hole clipping;
Above-mentioned clip mechanism includes a button and a fixture block, and this button is located in the button hole of lever, and can produce relative displacement with lever, and this fixture block is located in the hole clipping of lever, and the front end of fixture block is provided with tooth, the protruding hole clipping that is exposed in the rear end of fixture block.
Other purpose of the present invention, advantage and novelty of the present invention, creative will the work with detailed description with specific embodiment in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the front view of the driving head of known swing-head spanner.
Fig. 2 is the right side view of the driving head of known swing-head spanner, and the tooth root of table tooth and the meat between pin-and-hole are thick to be L.
Fig. 3 pulls the part cutaway view of state for known swing-head spanner.
Fig. 4 is the front view of the driving head of another known swing-head spanner.
Fig. 5 is the right side view of the driving head of another known swing-head spanner, and the meat between arc surface and pin-and-hole is thick to be L1.
Fig. 6 pulls the part cutaway view of state for another known swing-head spanner.
Fig. 7 is a three-dimensional combination figure of the present invention.
Fig. 8 is a three-dimensional exploded view of the present invention.
Fig. 9 is the front view of driving head of the present invention.
Figure 10 is the left side view of driving head of the present invention, and the meat between table arc surface and pin-and-hole is thick to be L2.
Figure 11 is a part sectional view of the present invention.
Figure 12 pulls the part front cross sectional view of state for the present invention.
Figure 13 is the front view of the driving head of second embodiment of the invention.
Figure 14 is the left side view of the driving head of second embodiment of the invention, and the meat between table arc surface and pin-and-hole is thick to be L2.
Figure 15 pulls the part front cross sectional view of state for second embodiment of the invention.
Figure 16 is the three-dimensional combination figure of third embodiment of the invention.
Figure 17 is the three-dimensional exploded view of third embodiment of the invention.
Annex one is numbered the patent case No. 380468 for the Taiwan patent announcement.
Annex two is numbered the patent case No. 421111 for the Taiwan patent announcement.
Symbol description among the figure
10 driving heads, 11 pivot portions, 12 teeth
Stressed section of stressed section 13b of 13 pin-and-hole 13a
14 slight cracks, 20 driving heads, 21 pivot portions
22 teeth, 23 arc surfaces, 24 pin-and-holes
Stressed section 25 slight crack of stressed section 24b of 24a
30 swing-head spanners, 40 driving heads, 41 ratchet rings
42 marks, 43 pivot portions, 44 pivot holes
Stressed section 45 arc surface of stressed section 44b of 44a
46 teeth, 47 teeth, 48 teeth
50 levers, 51 card divisions, 52 jaws
53 perforation, 54 openings, 55 hole clippings
571 embossings of 56 button holes, 57 pins
58 button holes, 60 clip mechanisms, 61 buttons
611 first 612 second 62 fixture blocks
621 teeth, 63 elastomers
The tooth root and the meat between pin-and-hole of L tooth are thick
Meat between L1 arc surface and pin-and-hole is thick
Meat between L2 arc surface and pin-and-hole is thick
The specific embodiment
With reference to Fig. 7, first embodiment according to the invention, this swing-head spanner 30 can be in order to switching spiral shell spare.
With reference to Fig. 8, this swing-head spanner 30 comprises: a driving head 40, a lever 50 and a clip mechanism 60, one end of driving head 40 is hubbed at lever 50, and clip mechanism 60 is located in the lever 50, and optionally limits driving head 40 and put relation with the relative pivot of 50 of levers.
Driving head 40 includes first end and second end, this first end can be in order to drive spiral shell spare, this second end is provided with a pivot portion, this pivot portion outer rim includes first part and second partly, first of this pivot portion outer rim partly is provided with tooth, this pivot portion second arc surface partly is higher than the tooth root of tooth, and this first partly position of tooth setting be positioned at spanner relatively pull the direction end.With reference to Fig. 9 and Figure 10, its first end is provided with one can be for the ratchet ring 41 and the unidirectional ratchet drive mechanism (not shown) of spiral shell spare setting simultaneously.The face edge of this driving head 40 indicates markedness 42 in first embodiment, and the direction of arrow of this mark 42 demonstrates the direction of pulling of spanner, but not is the idle running direction.Its second end is provided with a pivot portion 43 that is convex, and the stage casing of this pivot portion 43 also laterally is provided with a pin-and-hole 44, and the outer rim of this pivot portion 43 forms arc surface 45, and first of this pivot portion 43 partly is provided with tooth 46.What this tooth 46 of being located at pivot portion 43 was positioned at swing-head spanner 30 relatively pulls the direction end, in first is implemented, swing-head spanner 30 pull direction for clockwise, so tooth is located at first part of pivot portion 43.Pivot portion 43 second arc surface 45 partly then is that full meat is thick, and without any the thick minimizing of meat, with reference to Figure 10, the meat that arc surface 45 and pin-and-hole are 44 is thick to be L2 (L2＞L＞L1).It should be noted that tooth 46 is embodied as the indent tooth in first embodiment, the tooth root of tooth 46 is lower than arc surface 45, and pivot portion 43 second arc surface 45 partly is that full meat is thick.This shows that the pivot portion outer rim of above-mentioned driving head includes first partly and second partly, this first partly is provided with tooth, and what the position of this tooth setting was positioned at spanner relatively pulls the direction end, and this second partly is provided with arc surface, and the outer rim of this arc surface is higher than the tooth root of tooth.
As shown in Figure 8, lever 50 includes pivot end and handle end, and its pivot end is provided with a card division 51 that is spill, and this card division 51 includes two jaws 52, the suitable place of this two jaw 52 laterally is provided with 52 of 53, two jaws of perforation and is formed with one and can supplies the ccontaining opening 54 of driving head 40 second ends.And mat one pin 57 is arranged in the pin-and-hole 44 of perforation 53 and driving head 40, and this embossing 571 of selling 57 stage casings is packed in pin-and-hole 44, makes second end of driving head 40 be hubbed at the pivot end of lever 50.The direction of corresponding driving head 40 second ends of this pivot end is established a hole clipping 55, and this hole clipping 55 is open by the ora terminalis of opening 54.This lever laterally is located at the lateral margin of lever for the button hole 56 of button setting., button hole 56 is communicated in hole clipping 55.Its handle end is available for users to grip.
With reference to Figure 11, the rear end that shows the fixture block 62 of clip mechanism 60 is resisted against first 611 of button 61, makes the tooth 621 of fixture block 62 front ends be engaged in the tooth 46 of driving head 40.The fixture block 62 of clip mechanism 60 has limited the relative displacement of 50 of driving head 40 and levers.
With reference to Figure 12, the stress of the pivot portion 43 of display driver head 40 when pulling operation, when swing-head spanner 30 was pulled clockwise, stressed section 44a, 44b of driving head 40 can directly bear pull force.The meat of right stressed section 44b is thick to be that (L2＞L＞L1) is without any the thick minimizing of meat for the thick L2 of full meat.When applying pull force in swing-head spanner 30, the abundant meat wall of this stressed section 44b can bear bigger strength, is difficult for producing slight crack or destruction, has effectively promoted the torque value that swing-head spanner 30 can bear.
Figure 13 and Figure 14 show second embodiment of the present invention.Second embodiment is identical with first embodiment, except the tooth 47 of driving head 40 is embodied as half indent tooth.With reference to Figure 14, the tooth root of this tooth 47 is lower than arc surface 44 equally, and the arc surface 45 of pivot portion to be similarly full meat thick, without any the thick minimizing of meat, the meat that arc surface 45 and pin-and-hole are 44 is thick to be L2 (L2＞L＞L1).
With reference to Figure 15, the stress of the pivot portion 43 of display driver head 40 when pulling operation, when swing-head spanner 30 was pulled clockwise, stressed section 44a, 44b of driving head 40 can directly bear pull force.The meat of right stressed section 44b is thick to be that (L2＞L＞L1) is without any the thick minimizing of meat for the thick L2 of full meat.When applying pull force in swing-head spanner 30, the abundant meat wall of this stressed section 44b can bear bigger strength, is difficult for producing slight crack or destruction, has effectively promoted the torque value that swing-head spanner 30 can bear.
Figure 16 and Figure 17 show the 3rd embodiment of the present invention.The 3rd embodiment is identical with first embodiment, except the button 61 of clip mechanism 60 is located at the end face of lever 50 pivot ends, and tooth 48 is embodied as the arc tooth.The pivot end of this lever 50 is vertically established a button hole 58, and this button hole 58 is ccontaining for the button 61 of clip mechanism 60, and is communicated in hole clipping 55.
Can summarize the present invention with regard to the above and have following advantage:
1. " swing-head spanner improvement structure " of the present invention, the pivot portion outer rim of its driving head forms arc surface, and first of this pivot portion partly is provided with tooth, and pivot portion second arc surface partly then is that full meat is thick, without any the thick minimizing of meat, the meat between arc surface and pin-and-hole is thick to be L2 (L2＞L＞L1).When applying pull force in swing-head spanner, its abundant meat wall of stressed section can bear bigger strength, is difficult for producing slight crack or destruction, has effectively promoted the torque value that swing-head spanner can bear.
2. the present invention's it " swing-head spanner improvement structure ", its pivot portion first tooth partly of being located at driving head can be indent tooth or half indent tooth, the tooth root of tooth all is lower than pivot portion second arc surface partly, what the position of this tooth setting system was positioned at swing-head spanner relatively pulls the direction end, and pivot portion second arc surface partly is that full meat is thick.
This shows that the present invention has value on the industry; And not seeing again has identical or similar invention to come across domestic and international publication or public use, the real important document that has met patent statute.
The above, only be preferred embodiment of the present invention, when can not with the scope of qualification the invention process, so the displacement of the change of numerical value or equivalent elements such as, or, all should still belong to the category that patent of the present invention contains according to equalization variation and modification that the present patent application claim is done.
Claims (11)
1. a swing-head spanner improves structure, mainly the lever that is hubbed at driving head by a driving head and is formed, wherein driving head includes first end and second end, this first end can be in order to drive spiral shell spare, this second end is provided with the pivot portion that is convex, and lever is provided with the card division that is spill with respect to an end of driving head pivot portion, and wear pivot joint by a pin, so that driving head can produce relative pivot pendulum with lever, in this lever and be provided with a clip mechanism, this clip mechanism optionally limits driving head and puts with the relative pivot between lever, it is characterized in that:
The pivot portion outer rim of above-mentioned driving head second end includes first part and second partly, first of this pivot portion outer rim partly is provided with tooth, what the position of this tooth setting was positioned at spanner relatively pulls the direction end, second of this pivot portion outer rim partly is provided with arc surface, and the outer rim of this arc surface is higher than the tooth root of the first part tooth;
Above-mentioned lever comprises pivot end and handle end, and the card division that this pivot end is spill has two jaws, and this lever pivot end has a button hole and a hole clipping, and this button hole is communicated with hole clipping;
Above-mentioned clip mechanism includes a button and a fixture block, and this button is located in the button hole of lever, and can produce relative displacement with lever, and this fixture block is located in the hole clipping of lever, and the front end of fixture block is provided with tooth, the protruding hole clipping that is exposed in the rear end of fixture block.
2. swing-head spanner as claimed in claim 1 improves structure, and wherein first end of above-mentioned driving head is provided with the ratchet ring and the unidirectional ratchet drive mechanism that can supply spiral shell spare to be provided with.
3. swing-head spanner as claimed in claim 2 improves structure, wherein on the ratchet ring of first end of above-mentioned driving head for the setting of spiral shell spare an edge is arranged, and this face edge indicates arrow, and the sensing of this arrow is identical with the position of pivot portion first tooth setting partly.
4. swing-head spanner as claimed in claim 1 improves structure, the stage casing of the wherein above-mentioned driving head second end pivot portion laterally is provided with a pin-and-hole, two jaws that this lever pivot end is the spill card division laterally are provided with a perforation, one pin can be arranged in perforation and pin-and-hole, make second end of driving head be hubbed at the pivot end of lever.
5. swing-head spanner as claimed in claim 1 improves structure, and wherein above-mentioned driving head second end pivot portion first tooth partly is embodied as the indent tooth.
6. swing-head spanner as claimed in claim 1 improves structure, and wherein above-mentioned driving head second end pivot portion first tooth partly is embodied as half indent tooth.
7. swing-head spanner as claimed in claim 1 improves structure, and wherein above-mentioned driving head second end pivot portion first tooth partly is embodied as the arc tooth.
8. swing-head spanner as claimed in claim 1 improves structure, and the button of wherein above-mentioned clip mechanism is arranged with one first and second with respect to the suitable place of hole clipping, this first rear end that with second mask drop is highly arranged and optionally supply fixture block against.
9. swing-head spanner as claimed in claim 1 improves structure, and wherein above-mentioned lever pivot end laterally is located at the lateral margin of lever pivot end for the button hole of button setting.
10. swing-head spanner as claimed in claim 1 improves structure, and wherein above-mentioned lever pivot end vertically is located at the end face of lever pivot end for the button hole of button setting.
11. swing-head spanner as claimed in claim 1 improves structure, wherein establishes an elastomer in button hole, can be for pushing outside the button hole in protruding being exposed to of an end of nature knob down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03155744 CN1277657C (en) | 2003-09-01 | 2003-09-01 | Swing spanner improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03155744 CN1277657C (en) | 2003-09-01 | 2003-09-01 | Swing spanner improved structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1590030A CN1590030A (en) | 2005-03-09 |
| CN1277657C true CN1277657C (en) | 2006-10-04 |
Family
ID=34598190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03155744 Expired - Lifetime CN1277657C (en) | 2003-09-01 | 2003-09-01 | Swing spanner improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1277657C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348367C (en) * | 2004-01-07 | 2007-11-14 | 林彦文 | Adjustable oscillating-head wrench improving structure |
-
2003
- 2003-09-01 CN CN 03155744 patent/CN1277657C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1590030A (en) | 2005-03-09 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20061004 |