CN101104258A

CN101104258A - Spanner capable of quick changing driving head

Info

Publication number: CN101104258A
Application number: CNA2007101462830A
Authority: CN
Inventors: 吴传福
Original assignee: Proxene Tools Co Ltd
Current assignee: Proxene Tools Co Ltd
Priority date: 2007-08-31
Filing date: 2007-08-31
Publication date: 2008-01-16
Anticipated expiration: 2027-08-31
Also published as: CA2637754C; CA2637754A1; JP2009056580A; EP2030735B1; CN101104258B; JP4834697B2; AU2008203045A1; EP2030735A2; EP2030735A3; AU2008203045B2

Abstract

The invention provides a spanner that can fast replace a driving head, mainly comprising a holding handle, a combining part and a driving head. The combining part is arranged on two arms where one end of the holding handle stretches. A hole for placing a knockout part into the cavity of the two arms is across arranged in the back outer wall. The combining part is placed into the gap arranged by the driving head. The combining part is fixed by a clamping butting part arranged by the driving head. The knockout part arranged by the holding handle is clamped on the tooth-shaped arc surface of the driving head. The invention can fast replace driving heads of various driving parts, and can adjust force applying angle fixation of the driving head.

Description

A kind of spanner of fast changeable driving head

Technical field

The present invention relates to the hand-operated tools field, refer to a kind of spanner of fast changeable driving head especially.

Background technology

By me for many years known to the use experience, general common on the market spanner, except monkey wrench, pipe tongs wrench etc. press from both sides mouthful size for adjusting, box spanner then must be by the sleeve of changing specification in addition, the nut lock that can adapt at all size unloads, other spanners, as combination wrench, ratchet spanner, all has only single size, also be merely able to rotate the object of this corresponding single size, therefore, in the general purpose tool case, must place the spanner of plurality of specifications and pattern simultaneously, to solve the user demand under different situations.

Yet general traditional combination wrench, ratchet spanner, the single specification that is formed in one mostly, the actuator of being located at spanner is because of changing fast, so make many spanners of the essential placement in tool box, not only allow the weight increase in tool box bring the user and carry inconvenience, and need the more money of cost purchase spanner; Can address the above problem though can replace the box spanner of some sleeves, if use screw tightening because of about narrow space, and can't be sheathed from top to bottom the time, box spanner promptly can't use; Because, though monkey wrench can be adjusted the spacing of movable jaw and fixed jaw according to the solid thing size of spiral shell, though also can solve increasing purchase spanner problem, consolidate thing if be used in undersized spiral shell, and during the narrow space of the left and right sides, fabric width broad because of monkey wrench has the situation that is difficult for entering.

And in the spanner of commonly using, has the spanner of replacing the driving head function, for example, shown in the Republic of China M284486 patent, in this case, utilize to drive on the bolt jointing part that first end extended and establish a clamping piece, the socket part set with a wrench body is provided with a sleeve joint hole, and bolt jointing part is inserted in the sleeve joint hole of wrench body, and this clamping piece is stretched out by bullet in the locating hole and forms the fixing combination, though yet this spanner has the function of quick replacement driving head, but and can't adjust the driving head angle, and this wrench body must be provided with a sleeve joint hole, and makes whole volume become big, be unfavorable for the use of narrow space, cost of manufacture also improves because of sleeve joint hole; In addition such as the inventor previous in the Republic of China I271275 patent checked and approved of application, one end of this handle extend about on two arms, provide a conjunction separately, this conjunction is can be fixing for the recess installing of driving head, though quick replacement driving head is arranged, and the function of adjusting the driving head angle is arranged, yet the user is after installing for the first time, because of learning whether both aim at really, must just can guarantee by the action that examination is drawn, and still remain to be improved from outward appearance.

In view of this, the inventor provides a kind of especially and solves above-mentioned problem, and have more the quick replacing driving head spanner of novelty after constantly testing, as hereinafter describing in detail.

Summary of the invention

For this reason, the present invention researches and develops improvement with the spanner of commonly using, mainly the end with lever is provided with a matrix articulated section, two arms about extend this matrix articulated section and form a concave shape, and side in two arms, wear a side opening, by the conjunction administration of fixed, and two inwall in the middle of the arms be provided with for the top hole that part inserts of pulling, one driving head is arranged in addition, and this driving head is provided with a convex articulated section, the end side surface in this convex articulated section, be provided with a breach that is open shape, and be provided with plurality of teeth portion along the arc surface that protrudes, can replace for the top part of pulling, in arc surface slightly lower position then be provided with a hole that is provided with for retainer component, by this class formation, have following characteristics:

1, the present invention is that breach with driving head directly is fastened on the conjunction of lever, assembling is simple, be easy to know the certainty of fastening from outward appearance, need not be as the structure of commonly using, need try to find the set conjunction of two arms could in conjunction with, and utilize retainer component that conjunction is fixed, make driving head have and change function fast, and can guarantee that driving head and lever are fixing really, be to be main purpose of the present invention.

2, secondary objective of the present invention, conjunction is considered as an axis of rotation, this driving head is the center with this rotating shaft, make driving head can do the swing of different angles up and down, and the tooth portion that the piece of pulling is sticked in the circular radian of convex articulated section is pushed up in order, driving head can be done bending and be being fixed of different angles and application of force use.

Description of drawings

Fig. 1 is the exploded view of first embodiment of the invention.

Figure 1A is the driving head partial enlarged drawing of first embodiment of the invention.

Fig. 2 is the profile of first embodiment of the invention.

Fig. 2 A is the first hole partial enlarged drawing of first embodiment of the invention.

Fig. 3 is the outside drawing of first embodiment of the invention.

Fig. 4 is another profile of first embodiment of the invention, and the expression driving head rotates.

Fig. 5 is another driving head outside drawing of installing of first embodiment of the invention.

Fig. 6 is the exploded view of second embodiment of the invention.

Fig. 6 A is the driving head partial enlarged drawing of second embodiment of the invention.

Fig. 7 is the profile of second embodiment of the invention.

Fig. 7 A is the 3rd a hole partial enlarged drawing of second embodiment of the invention.

Fig. 8 is the exploded view of third embodiment of the invention.

Fig. 9 be third embodiment of the invention the fixed block profile is not set.

Figure 10 be third embodiment of the invention the fixed block profile is set.

Figure 11 is the conjunction of third embodiment of the invention profile when inserting breach.

Figure 12 is that the conjunction of third embodiment of the invention is inserted profile behind the breach.

Figure 13 is the outside drawing of third embodiment of the invention.

Figure 14 is the exploded view of fourth embodiment of the invention.

Figure 15 is the outside drawing of fourth embodiment of the invention.

Figure 16 is the profile of fourth embodiment of the invention.

Figure 17 is another profile of fourth embodiment of the invention.

Figure 18 is another driving head outside drawing of installing of fourth embodiment of the invention.

Figure 19 is the profile of fifth embodiment of the invention.

Profile when Figure 20 is the combination of fifth embodiment of the invention.

Figure 21 is the exploded view of sixth embodiment of the invention.

Figure 22 is the driving head contact engagement pin locking profile of sixth embodiment of the invention.

Figure 23 is that the driving head of sixth embodiment of the invention breaks away from engagement pin locking profile.

[main element symbol description]

1--------spanner 10-------driving head

11-------actuator 12-------convex articulated section

121------breach 122------tooth portion

The 123------second hole 124------stop section

20-------lever 21-------matrix articulated section

22-------two arm 221------side openings

The 23-------first hole 30-------conjunction

40-------pushes up the part 41-------spring of pulling

42-------pushes up the piece 50-------retainer component of pulling

51-------steel ball 52-------spring

53-------stick harness A1-------the 3rd hole

B1-------inside groove B2-------Elastic buckle spare

B3-------fixed block B4-------annular groove

C1-------through hole C2-------the 4th hole

C3-------the 5th hole C4-------embossing

E--------switch member E1-------engagement pin

E11------draw-in groove E2-------shallow slot

E3-------cover plate E4-------deep trouth

E5-------button E51------guide card

The specific embodiment

The present invention is the spanner of relevant a kind of fast changeable driving head, relevant the present invention for reach above-mentioned purpose, feature is adopted technological means and effect thereof, asks first with reference to shown in Fig. 1,2:

Spanner 1 shown in Fig. 1,2 mainly is made up of a driving head 10, a lever 20 and a conjunction 30, wherein these lever 20 1 ends are the matrix articulated section 21 of a concave shape, two arms 22 generally are parallel shape about this matrix articulated section 21, and in two arms provide a side opening 221, can be ccontaining for conjunction 30, and the intermediate inner wall between two arms 22 provides one first hole 23, can be ccontaining for the top part 40 of pulling, and this top part 40 of pulling comprises a spring 41 and the top piece 42 of pulling; Secondly, these driving head 10 1 ends are established an actuator 11, the other end is established the convex articulated section 12 of a convex, this convex articulated section 12 can embed between two arms of matrix articulated section 21, and the side in convex articulated section 12 provides the just like open shape breach 121 of U font, this breach 121 can supply conjunction 30 ccontaining fastenings, and the end of this convex articulated section 12 is an arc surface, be provided with plurality of teeth portion 122 along this arc surface, the lower position slightly in the end, one second hole 123 that provides can be connected with breach 121, and ccontaining for a retainer component 50, and this retainer component 50 comprises a steel ball 51, one spring 52 and a stick harness 53; In addition, drop out by second hole, 123 openings of breach 121 inner edges, can shown in Fig. 2 A, when second hole, 123 desires are communicated with the end face of breach 121, can set up a stop section 124 in order to prevent retainer component 50.

During assembling spanner 1, at first with the steel ball 51 of retainer component 50, spring 52 and stick harness 53 are inserted in second hole 123 in regular turn, secondly the spring 41 of part 40 and the top piece 42 of pulling of being pulled in the top is inserted in first hole 23 in regular turn, and give riveted, to prevent to push up part 40 escapes of pulling, and conjunction 30 worn in the side opening 221 that is fixed in two arms 22, convex articulated section 12 is embedded in the matrix articulated section 21, conjunction 30 is embedded in the breach 121, this moment, steel ball 51 was subjected to conjunction 30 pushing and pressing, close stick harness 53 1 side directions compression toward second hole 123, and conjunction 30 is when being resisted against breach 121 bottoms, and this steel ball 51 no longer is subjected to conjunction 30 pushing and pressing, and is replaced near indentation, there toward second hole 123 by the elastic force pushing and pressing of spring 52, make steel ball 51 fasten conjunction 30 and fix, finish snap action; Be located at top in first hole 23 piece 42 of pulling in addition, be subjected to the pushing and pressing of spring 41, make pull tooth portion 122 places of conflict convex articulated section, tip 12 of piece 42, top, be combined into spanner as shown in Figure 3.So make conjunction 30 become an axis of rotation, this driving head 10 is the center with this rotating shaft, and driving head 10 can be swung up and down, as shown in Figure 4, and by with the bending on the angle presentation; In addition when replacing driving head 10, the user only needs the opening direction application of force of lever 20 to breach 121, in addition with the driving head 10 opposite direction application of forces, can make conjunction 30 not pulled by the top of steel ball 51, make driving head 10 by breaking away from the lever 20, can change pattern different driving part 11 as shown in Figure 5 this moment, as openend, closing end, ratchet end etc., make it to fasten fast again with lever 20.

Below its most of structure shown in second to the 6th embodiment identical with spanner 1, for avoiding repeated description, following examples are only narrated first embodiment and are not existed together.

Please refer to second embodiment shown in Figure 6, this embodiment does not exist together, it is second hole of offering in breach 121 inner edges 123, its relative side is provided with one the 3rd hole A1 (can discover comparison by Fig. 6 A and Figure 1A), and originally be located at the stop section 124 of second hole 123, change and be located at the 3rd hole A1 opening (shown in Fig. 7 A), because the 3rd hole A1 has only single opening, then stick harness 53 need be set, as shown in Figure 7, only need spring 52 and steel ball 51 are packed among the 3rd hole A1 in regular turn, and give riveted, to prevent steel ball 51 escapes.

Please refer to the 3rd embodiment shown in Figure 8, this embodiment does not exist together, at first establish an inside groove B1 in the inner edge in breach 121 centre positions, can for an Elastic buckle spare B2 ccontaining against, this Elastic buckle spare B2 is the shape that bends a special angle for bent intermediate one radian, two ends, and this breach 121 is to cooperate Elastic buckle spare B2 shape and have some change; Yet as shown in Figure 9, dropped out by breach 121 easily for preventing Elastic buckle spare B2, so the fixed block B3 that extends internally in the both sides of breach 121 positions is resisted against on the breach 121, as shown in figure 10 for the two ends of elasticity fastener B2;

Referring again to Fig. 8, secondly an annular groove B4 is established in the appropriate location on this conjunction 30, when this conjunction 30 forces when inserting breach 121, please refer to Figure 11, shown in Figure 12, this annular groove B4 forces outside Elastic buckle spare B2 two inflection points and opens, when conjunction 30 forces when being placed in breach 121 bottoms, the then reinstatement of two inflection points of this Elastic buckle spare B2, and block conjunction 30, by this mode, utilize two inflection points that conjunction 30 is fixed, can replace the retainer component 50 and second hole 123, the spanner that assembling is finished can be with reference to shown in Figure 13.

Then please refer to the 4th embodiment shown in Figure 14, this embodiment does not exist together, at first these breach 121 positions change and are located at two arms 22, the side of convex articulated section then is provided with a through hole C1, can penetrate for conjunction 30, and in about matrix articulated section 21 two arms 22 slightly lower position establish one the 4th hole C2, the 4th hole C2 can be communicated to breach 121, and with respect to the 4th hole C2 another side breach 121, provided one the 5th hole C3, ccontaining spring 52 and steel ball 51 among the 5th hole C3, all the 3rd hole A1 with Fig. 6 A is provided with similar, the 5th hole C3 is provided with a stop section 124 (not shown) in abutting connection with an end of breach 121, to prevent steel ball 51 escapes; Next is located at the conjunction 30 of driving head 10, and its appropriate location near 12 both sides, driving head convex articulated section is provided with embossing C4, and so the spanner of forming can also can be replaced driving head 10 as shown in figure 18 with reference to Figure 15 to Figure 17.

Please refer to Figure 19, the 5th embodiment shown in Figure 20, this embodiment and the 4th embodiment do not exist together, be that breach 121 is to be an inclination angle, when respectively taking lever and driving head because of two hands, under the non-deflection of wrist, two hands can form an angle of inclination by nature, so make driving head 10 and lever 20 easier dismounting, and steel ball 51 is exposed against the scope of conjunction 30 strengthen, more driving head 10 can be fastened on really (the 5th embodiment also can overlap and be used for other embodiment) on the lever 20.

Please refer to the 6th embodiment shown in Figure 21, this embodiment does not exist together, be to have additional a switch member E, this switch member E is for changing original steel ball 51 into an engagement pin E1, the wherein end shaft of this engagement pin E1 is established a draw-in groove E11, and two arms, 22 rear surfaces are established a shallow slot E2 in about matrix articulated section 21, can insert for a cover plate E3, in shallow slot E2, establish the less deep trouth E4 of a scope, this deep trouth E4 bottom is to communicate with the 5th hole C3 and first hole 23, and the breach that this cover plate E3 is set, can penetrate the guide card E51 that stretches below this button, place in the middle of this guide card E51 bottom for a button E5, be provided with for pushing up the breach that the part 40 of pulling passes through, the dual-side of this guide card E51 is placed among the draw-in groove E11 in addition; So the lever 20 of structure is when driving head 10 installings, please refer to shown in Figure 22,23, the button E5 of switch member E is promoted backward, make guide card E51 drive engagement pin E1 backward indirectly, in driving head 10 is packed lever 20 into, decontrol button E5 makes spring 52 push card dowel pin E1 forward against conjunction 30 this moment, and will replace other driving heads 10 time, only need once more button E5 is promoted backward and driving head 10 can be separated replacement.

Comprehensively above-mentioned, the present invention has following characteristics:

One, the present invention directly is fastened on conjunction with breach, because this breach only has single discrepancy Mouthful, the limited location effect, by the snap action sound of the block holding part below the breach, operation is very again Simply, the advantage of low cost is arranged again, easily making not only can make driving head have and change fast function, Guarantee again certain fastening of lever and actuator, need not be as the structure of commonly using, at the wrench body palpus Be provided with a sleeve joint hole, and make whole volume become big, be unfavorable for the use of narrow space.

Two, the present invention is the axis of rotation that is considered as driving head in connection with part, centered by this rotating shaft, Make driving head can do up and down the swing of different angles, the top of this top valve part piece of pulling is engaging in addition In the tooth section of circular face, the driving head bending can be the fixing rear application of force of different angles and use.

Claims

1. the spanner of a fast changeable driving head mainly comprises:

One lever, wherein an end has an articulated section;

One driving head, this driving head have an actuator and an articulated section, and the articulated section of this driving head is provided with the breach that is open shape, and wherein this breach is the articulated section that is fastened on lever.

2. the spanner of fast changeable driving head according to claim 1, wherein the articulated section of this driving head and lever is complementary shape, and down closes mutually.

3. the spanner of fast changeable driving head according to claim 1, wherein a conjunction is established in the articulated section of this lever, in order to combination and the articulated section of separating driving head.

4. the spanner of fast changeable driving head according to claim 1, this two articulated section wherein, one for be the matrix articulated section of concave character type without exception, and this matrix articulated section also has two generally to be parallel arm, and a space that is positioned in the middle of this two arm; Another person is the convex articulated section that without exception is convex, but down is gone in the space of two arms.

5. the spanner of fast changeable driving head according to claim 4, wherein this two arm is provided with two side holes, can be for conjunction installing.

6. the spanner of fast changeable driving head according to claim 5 wherein between this two arm, is established an annular groove on the conjunction surface of exposing at least.

7. the spanner of fast changeable driving head according to claim 1, wherein the breach inner edge of this driving head is established an inside groove, can be ccontaining for an Elastic buckle spare.

8. the spanner of fast changeable driving head according to claim 7, outside breach both sides of this inside groove wherein, establish one for the elasticity fastener against fixed block.

9. the spanner of fast changeable driving head according to claim 4, wherein the intermediate inner wall surface between this two arm is established one and is pushed up the part of pulling in the hole that provides.

10. the spanner of fast changeable driving head according to claim 4, wherein the end of this convex articulated section is to be a circular arc, and is provided with plurality of teeth portion along circular arc.

11. the spanner of fast changeable driving head according to claim 4, wherein the end of this convex articulated section is provided with hole, and this hole can be ccontaining for a retainer component.

12. the spanner of fast changeable driving head according to claim 5, wherein the breach of this driving head articulated section can be oblique angle and change.

13. the spanner of a fast changeable driving head mainly comprises:

One lever, wherein an end has an articulated section, and this articulated section is provided with a breach that is open shape;

One driving head, this driving head have an actuator and an articulated section, and wherein this articulated section can be by the breach fastening person of lever.

14. the spanner of fast changeable driving head according to claim 13, wherein the articulated section of this driving head and lever is complementary shape, and down closes mutually.

15. the spanner of fast changeable driving head according to claim 13, wherein a conjunction is established in the articulated section of this driving head, in order to combination and the articulated section of separating lever.

16. the spanner of fast changeable driving head according to claim 13, this two articulated section wherein, one for be the matrix articulated section of concave character type without exception, and this matrix articulated section also has two generally to be parallel arm, and a space that is positioned in the middle of this two arm; Another person is the convex articulated section that without exception is convex, but down is gone in the space of two arms.

17. the spanner of fast changeable driving head according to claim 16, wherein this convex articulated section is provided with a through hole for the conjunction installing.

18. the spanner of fast changeable driving head according to claim 17, wherein the conjunction ring in this through hole is established an embossing.

19. the spanner of fast changeable driving head according to claim 16, wherein this two arm between the intermediate inner wall surface, establish a top part of pulling in the hole that provides.

20. the spanner of fast changeable driving head according to claim 16, wherein the end of this convex articulated section is a circular arc, and is provided with plurality of teeth portion along circular arc.

21. the spanner of fast changeable driving head according to claim 16 wherein on this two arm, is installed a retainer component in the hole that provides separately.

22. the spanner of fast changeable driving head according to claim 13, wherein the breach of this lever can be oblique angle variation.

23. the spanner of fast changeable driving head according to claim 16, wherein this two arms rear surface is provided with a switch member in the groove that provides.

24. the spanner of fast changeable driving head according to claim 23, wherein this switch member is provided with a button, this button is to establish for blocking mutually with engagement pin, but and phase interlock.