CN103433875A - Open speed spanner - Google Patents
Open speed spanner Download PDFInfo
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- CN103433875A CN103433875A CN2013102748525A CN201310274852A CN103433875A CN 103433875 A CN103433875 A CN 103433875A CN 2013102748525 A CN2013102748525 A CN 2013102748525A CN 201310274852 A CN201310274852 A CN 201310274852A CN 103433875 A CN103433875 A CN 103433875A
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Abstract
The invention relates to an open speed spanner, which comprises a holding handle H which can be held by a hand, an open driving part which is arranged at one end of the holding handle, and a tie member chamber which is arranged in the open driving part and is used for containing an object W to be turned. The open driving part comprises a first jaw which is provided with a first resisting wall, a second jaw which comprises a second resisting wall which faces to the first resisting wall, an inner wall which extends from the second resisting wall to the inner side of the second jaw, a tie member yielding chamber, an auxiliary jaw yielding hole, an auxiliary jaw which can elastically and longitudinally slide in the auxiliary jaw yielding hole, and an auxiliary jaw limiting piece which is coupled with a limiting groove. The auxiliary jaw comprises an external end, an internal end and the limiting groove, wherein the external end comprises a sleeper part which is in contact with the resisting walls and a pushing surface which can jointly clamp the object W to be turned together with the first jaw.
Description
The application is to be that April 30, application number in 2008 are dividing an application of 200810094485.X, the denomination of invention application for a patent for invention that is " open fast wrench " the applying date.
Technical field
The present invention relates to the pull back open fast wrench of back and forth operation of a kind of idle running, dallies while pulling back in especially a kind of position from holder crop W, and the operator can obtain the open fast wrench of the smooth-going operation feeling of " one-time-reach-place ".
Background technology
Open fast wrench, be in conjunction with the pull back improvement hand-held tool of reciprocal service advantages of traditional open-end wrench and ratchet spanner idle running, very convenient during use, accumulated in the past the improving technology of certain degree.For example, No. 228757th, TaiWan, China patent announcement (the pawl type Spanner structure of unidirectional precession " can "); Announce No. 278060 by (" tooth Nie formula revolution spanner "); Announce No. 327619, US5533428 (WO9615879) (" ratchet spanners reaches with ratchet spanners and rotates a method that can turn assembly "); Announce the Patent Cases such as M310772 (open-end wrench of unidirectional start " can "); And other country is as U.S. US7111529, US7077035, US3165015 Patent Case.In addition, monkey wrench also has similar reciprocal operating mechanism, as TaiWan, China patent announcement the 501515th (monkey wrench with ratchet spanner function), and 511564 (cart-wheel type reversible adjustable wrench) Patent Case, U.S. US7010999, TaiWan, China patent announcement 262313, U.S. US2,879,681 etc.
The open-end wrench of No. 228757 exposure of patent announcement, utilize and to be located in the folder jaw of open driving part both sides it and one of " to move in the same way with driving spring " to can contracting pawl/jaw (latch 2,3), makes spanner can reach the idle running back and forth effect of operation of pulling back.In this structure, can contracting pawl/jaw (2,3) be along the forward and backward movement of spring pushing direction, with screwing screw when spanner operates clockwise, and in the counterclockwise direction idle running pull back.Yet, while due to spanner, screwing (or unscrewing) screw, need be dependent on screw and push against can the contracting pawl time by the reaction force can the contracting pawl provided, the spanner of this kind of function mode can contracting pawl/jaw (2,3) though provide toothed surfaces and contact with screw, so that reaction force to be provided; Yet, on the one hand because the direction of reaction force only produces component (toothed surfaces on the whole and the contact-making surface of screw between connecing not be 90 degree) on toothed surfaces, dentalation is used factors such as can producing long afterwards wearing and tearing, and directly affect the operating characteristics of screw/unscrew; On the other hand, the size of wrench opening section and actual nut size are variant, and can contracting pawl/jaw (2,3) but can move forward and backward and have the situation of progression wearing and tearing in operating process, easily produce the error in interlock.This kind of spanner uses upper and inconvenient.
The cases such as No. 327619th, patent announcement, US5533428 (WO9615879) have slightly been improved aforesaid drawbacks, its major way be use " with driving spring, moving in the same way " single contracting pawl/jaw 15 and for the structure of wrench opening section improved-that is, it defines and can have one second field of conjugate action 14 by contracting pawl 15, and it is parallel to first field of conjugate action 13 on the first pawl 11.Yet this structure operates not smooth when idle running is pulled back.The one reason is, the angle of the flank 75 that nut 60 vicinities can contracting pawl 15, and being easy to stumble can contracting pawl 15 and stop the stroke of pulling back.Even bevel edge 16 is provided in this patent, attempt to reduce this problem, still can not avoid comprehensively.And, because complex structure, the size of wrench opening section are large than the nut size, not only spanner weight is along with size increases, the screw/unscrew screw, and idle running two rightabouts operation of pulling back between, must repeatedly go through repeatedly mobile test, to seek the better point of application, this will expend the operating time, for professional user, very inconvenience.
Aforementioned or other Similar Problems be present in and variously be dependent on " with driving spring move in the same way can the contracting pawl " spanner in; For example, No. M310772nd, TaiWan, China patent announcement, US3,165,015, US7,077,035, US7,111,529 etc.Another common problem of this kind of spanner is: during the screw/unscrew spring, spring with can directly bear huge torsion by contracting pawl/jaw, be unfavorable for service life.
No. 501515th, TaiWan, China patent announcement, US7,010,999, TaiWan, China (patent of invention) discloses No. 200637692, the monkey wrench (adjustable spanner) of No. 511564 exposure of TaiWan, China patent announcement, adopt " the pivoted pawl " of difference, can avoid the problems referred to above generally.In details of the words, announce No. 501515 the groove 14 that laterally runs through this fixed jaw 11 is set on fixed jaw 11, and be fixed in this two groove 14 with tumbler (pivoted pawl) 40,66 pivots of double-deck symmetrical structure, and make tumbler 40,66 double teams between stop section 15, reach by this spanner can, by screw means/unscrew, be pulled back along other direction rotation idle running along a direction rotation.Yet this patent still has following shortcoming: the tumbler of (1) its two kinds of forms (pivoted pawl) 40,66 is respectively the embodiment of double-deck symmetrical structure, T shape structure, complex structure; (2) tumbler 40,66 double teams are between two stop sections 15 of slotted eye, and can't screw in slotted eye, therefore wrench opening is limited to the outstanding of tumbler, size is larger, comparatively heavy, and it is upper to be used in " monkey wrench ", is not suitable for open-end wrench; (3) spring 50,67 is located on pivotable, can make the elastic force of tumbler 40,66 resiliences less, and operation has some setbacks; (4) groove that is used for holding tumbler 40,66, for running through groove 14 or perforation, penetrates Wrench head, therefore the intensity of spanner clamping part is poor.No. 511564th, TaiWan, China patent announcement, US7,010,999, and No. 200637692nd, TaiWan, China patent Publication the through-going recess that penetrates Wrench head in No. 501515th, aforementioned bulletin be modified to the circular arc C shape groove do not penetrated and obtain higher-strength and by " driving rolls " that in No. 501515th, aforementioned bulletin, " tumbler 40,66 " stirred by spring, to replace tumbler (pivoted pawl) instead.Yet, on the one hand because " driving rolls " area is large, being used for installing the fixed jaw that is somebody's turn to do " driving rolls " must have quite roomy area to hold this driving rolls; These prior arts can only be for monkey wrench on the other hand, and to coordinate the assemblies such as " movable jaw ", " worm screw ", the certain interlock screw/nut of ability etc. is part or working substance, and the mass activity spanner must be more heavy, operation inconvenience.
In various idle runnings are pulled back the spanner of back and forth operation, utilization " with driving spring move in the same way can the contracting pawl " spanner of mechanism utilizes the required structure of the spanner of " pivoted pawl " mechanism comparatively simple, has the advantage of low cost; Yet, the former is designed with high complexity, generally do not take off several shortcomings of row: (1) retraction pawl must coordinate the slide opening of " running through the folder jaw ", cause spanner folder jaw fragile structure, easily because of long-term high button power operation (2) retraction pawl that ruptures, be designed to have the complicated field of conjugate action, maybe need to coordinate a plurality of retraction pawls, be that part or working substance etc. are part or working substance with engaging screw/nut etc., cause to manufacture to be difficult for or manufacturing cost increases; (3) design of retraction pawl need be born great strength and easily be damaged; (4) hold screw/nut etc. be part be the part chamber, may adopt portable folder jaw and complex structure; Though or adopt integral type folder jaw but be part chamber profile complexity, cause operation to be difficult for.
Therefore, be necessary to provide a kind of open fast wrench, improve aforesaid drawbacks.
Summary of the invention
The present invention's purpose, disclosing a kind of open fast wrench, comprising: a lever can grip for hand; One open driving part, it is positioned at this lever one end; Reaching one is the part chamber, and it is positioned at open driving part, in order to hold working substance to be pulled.Open driving part comprises: one first folder jaw, and it has one first abutment walls; One second folder jaw, it comprises: one second abutment walls, in the face of the first abutment walls; One inwall, it extends to side within the second folder jaw from the second abutment walls; One is that part is made a concession chamber; One auxiliary jaw is made a concession hole; One auxiliary jaw, its flexibly longitudinal sliding motion in this auxiliary jaw, make a concession in hole; Reach an auxiliary jaw locating part, itself and this stopper slot is coupled.Auxiliary jaw comprises an outer end, and it comprises an occipitalia that can contact with this abutment walls, reaches the pushing face that the one and first folder jaw clamps working substance W to be pulled jointly; One inside end; An and stopper slot.。
The accompanying drawing explanation
The schematic perspective view that Figure 1A to Figure 1B is the present invention.
The planar portions view that Fig. 2 A is the present invention.
Fig. 2 B is that the present invention combines rear plane.
The plane that Fig. 2 C is another embodiment of the present invention, it shows that stopper slot is for roughly being positioned at vertically breach of one of auxiliary jaw 140.
The auxiliary distribution of force schematic diagram of jaw when the holder crop that Fig. 2 D is the present invention.
Fig. 3 A to Fig. 3 E is the dally schematic diagram of pullback operation of the present invention.
The specific embodiment
As Figure 1A to Fig. 2 B show the present invention in order to pull a working substance W to be pulled (such as: screw/nuts etc. are the hand-held tool that part or other tool polygon are subject to drive end) the preferred embodiment of one of open fast wrench 1; " working substance W " refers to: for example, but screw/nut etc. are part or other tool polygon, be subject to drive end and the hand-held tool of mat spanner driving.Be subject to the drive end that is subject to of spanner driving herein in working substance W general reference working substance W.Open fast wrench 1 roughly comprises: a lever H can grip for hand; And an open driving part 100, it is positioned at this lever H mono-end.
Open driving part 100 is better to be comprised: one first folder jaw 110, and it has one first abutment walls 114; One second folder jaw 120, it roughly extends to a free end 122 from one in abutting connection with one of this lever base portion 121; Reaching one is part chamber 160, and it is positioned at open driving part 100, in order to hold working substance W to be pulled.
Better formation one inner fovea part 112 of inner segment (section that deviates from the first abutment walls 114) of the first folder jaw 110, it can hold the outstanding bight (ginseng Fig. 2 A) of working substance W in the operating process that spanner idle running is pulled back, and makes operating process smooth-going.Only the first folder jaw 110 also can not established this inner fovea part 112, changes and side within the second folder jaw 120 is enlarged, in the operating process of pulling back in spanner idle running, to hold working substance W; Though this increases spanner weight a little, still can reach specific effect.
The second folder jaw 120 comprises:
One second abutment walls 124, it is formed at this free end 122 of the second folder jaw 120 and faces the first abutment walls 114;
One inwall 126, it extends to side within the second folder jaw 120 from the second abutment walls 124;
One is that part is made a concession chamber 128, and it roughly is located between the extension line and this inwall 126 of this second abutment walls 124;
One auxiliary jaw is made a concession hole 130, and it extends in this base portion 121 and is that part is made a concession chamber 128 adjacency with this, and auxiliary jaw is made a concession the better second folder jaw 120 that do not run through in hole 130;
One auxiliary jaw 140, its part be located at this auxiliary jaw make a concession in hole 130 and flexibly (the spring S of ginseng icon) longitudinal sliding motion in this auxiliary jaw, make a concession in hole 130;
One inside end 146, its elasticity is coupled to auxiliary jaw and makes a concession in hole 130 (by a spring S);
One stopper slot 148; And
One auxiliary jaw locating part 150, its surface from the second folder jaw 120 extends to this auxiliary jaw via a spacing hole 152 and makes a concession hole 130, with these stopper slot 148 couplings, with restriction, should assist jaw 140 to be displaced into one and not be subject between the second place of bias voltage by the primary importance and of bias voltage.
Should be auxiliary jaw 140 is better comprises: the occipitalia 142 that one side can contact with this inwall 126 inwall 126, to reach one be the part contact-making surface in order to what contact working substance W; Be that the part contact-making surface comprises an abutment face 143 and a pushing face 144.Preferably, when auxiliary jaw 140 is positioned at the primary importance that is not subject to bias voltage, be the size that the narrowest width that part contact-making surface and first presss from both sides 114 of first abutment walls of jaw 110 is substantially equal to working substance W.Abutment face 143 is roughly in the face of the part (being the Lower Half of engagement edge WS in Fig. 2 A) of adjacent base 121 in one of working substance W to be pulled engagement edge WS, and it presss from both sides the common holder crop W of jaw 110 with first and to its application of force when operative employee crop W.Pushing face 144 is roughly in the face of deviating from part (being the first half of engagement edge in Fig. 2 A) of base portion 121 in this engagement edge WS of working substance W to be pulled, its at open fast wrench 1 when idle running is pulled back, the first half of engagement edge WS that can working substance W be pulled pushes, so that auxiliary jaw 140 is recalled in auxiliary jaw yielding hole 130.Gentle cambered surface/the curved surface of the better tool one of pushing face 144.Goodly between abutment face 143 and pushing face 144 with a smooth-going cambered surface/curved surface, join, that is, what assist jaw 140 is that the part contact-making surface extends to pushing face 144 (except pushing face 144 itself has cambered surface/curved surface with a cambered surface from abutment face 143, pushing face 144 also joins with one cambered surface/curved surface each other with abutment face 143), be beneficial to working substance W from the contact abutment face 143 slide onto the contact pushing face 144 process smooth and stream Yang, so contribute to: when operation aperture speeder wrench 1 is pulled back from the position idle running of holder crop W, the operator can obtain the smooth-going operation feeling of one-time-reach-place.This must repeatedly go through the irregularity operating process that the better point of application is sought in repeatedly mobile test by mat compared to known techniques such as US5533428 when idle running is pulled back, and the present invention has obviously promoted operation ease greatly.
For obtaining better effect, auxiliary jaw 140 when this primary importance, the contact position of its abutment face 143 and the engagement edge WS of working substance W to be pulled, better roughly be positioned at or the engagement edge WS a little less than working substance W to be pulled among entreat.According to another preferred embodiment, auxiliary jaw 140 is when this primary importance, its abutment face 143 is less than 35 degree with the angle of longitudinal centre line, better 25 degree that are less than, so, at auxiliary jaw 140 during at switching working substance W, has major part/or almost all be converted to along the component of auxiliary jaw 140 radial direction in the torsion that auxiliary jaw 140 is born at least, make a concession the hole wall in hole 130, be convenient to drive this working substance W (can join the distribution of force schematic diagram of Fig. 2 D) and make auxiliary jaw 140 be close proximity to auxiliary jaw.According to another preferred embodiment, the pushing face 144 of auxiliary jaw 140 extends, extends to abutment face 143 with better gentle cambered surface/curved surface from the end of an adjacent inner wall 126, make by this in the idle running process of pulling back, the application of force direction that the engagement edge WS of working substance W and pushing face are 144 is parallel to auxiliary jaw 140 longitudinal centre lines (or auxiliary jaw is made a concession the longitudinal centre line in hole 130) as far as possible, and the power that the pushing face of making 144 is born is most of or almost be parallel to the longitudinal direction of assisting jaw 140, reduce the wearing and tearing of 126 of occipitalia 142 and inwalls.
Be that part chamber 160 holds working substance W to be pulled, its roughly between auxiliary jaw 140 and the first abutment walls 114 and be that part is made a concession chamber 128 adjacency, this be part chamber 160 with make a concession chamber 128 common form one enough large space allow this open driving part 100 to rotate idle running pull back (in process is pulled back in idle running, it is that part is made a concession chamber 128 and jaw 140 is assisted in pushing that working substance W can enter) with respect to this working substance W to be pulled.
One jaw oral area 170 be defined in the first folder jaw 110 the first abutment walls 114 and second the folder jaw 120 the second abutment walls 124 between, its width is measure-alike with the working substance W that waits to pull roughly, makes the first folder jaw 110 and the second folder jaw 120 can jointly pull this working substance W.
It should be noted that, in known techniques, as US7,111,529, for the function that provides idle running to pull back reciprocal operation, the jaw oral area width of spanner must be greater than working substance W to be pulled (that is the size of jaw oral area is inconsistent with the size of rotatable working substance W), could coordinate the structure of the labyrinth and the auxiliary jaw that are the part chamber; Yet in the present invention, front by aforementioned design, the width of jaw oral area 170 can be roughly measure-alike with working substance W to be pulled, make to see outside the open driving part 100 of open fast wrench 1, almost with generally do not pull back, back and forth the open-end wrench of operating mechanism is identical by tool idle running for size, not only save manufactured materials, also can coordinate small size working substance W and make small-sized open fast wrench.And as previously mentioned, the present invention's auxiliary 140 is that the narrowest width that part contact-making surface and first presss from both sides 114 of first abutment walls of jaw 110 also can be substantially equal to the size of working substance W; Therefore the whole operating process of operator, comprise from obtain open fast wrench 1 and by its jaw oral area 170 against working substance W, switching working substance W, then idle running pull back, a succession of step of switching working substance W again, be very smooth-going.This be known techniques can't be obtained.
Fig. 3 A to 3E shows that this case locking working substance W process hollow goes back to the operational scenario signal of drawing.Working substance W is hex(agonal)screw, and the screw corner therefore the open driving part 100 of open fast wrench is often pulled back is equivalent to spanner rotation 60 degree, therefore spanner is rotated counterclockwise degree of convergence and is altogether 60 ° in Fig. 3 A to 3E.Fig. 3 A to 3E shows respectively the relative position of often pull back auxiliary jaw 140 and the engagement edge WS of working substance W 15 ° the time.In Fig. 3 A, auxiliary jaw 140 arrives at the primary importance that is not subject to bias voltage under spring S bias voltage, better abutment face 143 is close to engagement edge WS, in this position, auxiliary jaw 140 can clamp this screw jointly with the first folder jaw 110, if therefore rotate in a clockwise direction open fast wrench, can be by screw means/unscrew; As shown in Figure 3 B, while rotating in a counter-clockwise direction open fast wrench, the reaction force of screw to auxiliary jaw 140, make that the pushing face 144 of auxiliary jaw 140 is stressed to be recalled in auxiliary jaw yielding hole 130, advance from primary importance toward the second place, form spanner idle running and pull back.As Fig. 3 C to 3E, spanner continues rotation, and after walking around screw one corner (as Fig. 3 D), auxiliary jaw 140 comes back to primary importance (ginseng Fig. 3 E), spanner can be again along clockwise direction by screw means/unscrew.
Above all explanations are in order to explain the present invention's preferred embodiment, but not in order to limit the present invention.The equivalent embodiment of other simple change that any structure according to the present invention, feature, purport and claim are implemented, should be contained by the claim of this case.
The primary clustering symbol description
Claims (8)
1. an open fast wrench, its idle running is pulled back, and back and forth operation is to rotate a working substance to be pulled (W), and this working substance to be pulled has a drive end that contains at least one pair of relative engagement edge (WS), and this open fast wrench comprises:
One lever (H), it has an end;
One open driving part (100), it comprises one of this end base portion (121) of contiguous lever (H) and forms a driving opening;
One first folder jaw (110), its base portion from this open driving part (100) (121) stretches out, and this first folder jaw (110) comprises the first abutment walls (114) of being located at one first plane;
One second folder jaw (120), its base portion from this open driving part (100) (121) stretches out, and make the first folder jaw (110) and the second folder jaw (120) define this driving opening, this drives the drive end of the structure receivability working substance to be pulled (W) of opening, and this second folder jaw (120) comprises the second abutment walls (124) of being located at one second plane; And
One auxiliary jaw (140), it comprises an abutment face (143), and this auxiliary jaw (140) is received in slidably in the second folder jaw (120) and the abutment face (143) of auxiliary jaw (140) is stretched out enter in this driving opening;
Wherein the drive end of this working substance to be pulled (W) is received in this driving opening of this open driving part (100) slidably, make working substance to be pulled (W) can be under the cooperation of the first abutment walls (114) and the second abutment walls (124) and the cooperation of the first abutment walls (114) and the abutment face (143) of auxiliary jaw (140) under, towards a first direction rotation; And
Wherein, described auxiliary jaw (140) also comprises a stopper slot (148), described the second folder jaw (120) also comprises an auxiliary jaw locating part (150), described auxiliary jaw locating part (150) and described stopper slot (148) coupling, with restriction, should assist jaw (140) to be displaced into one not be subject between the second place of bias voltage by the primary importance and of bias voltage, and wherein this first abutment walls (114) and the second abutment walls (124) roughly are parallel to each other, and with one first width separately, and be one second width between at least one pair of relative engagement edge (WS) of the drive end of this working substance to be pulled, this first width is substantially equal to this second width,
And wherein should auxiliary jaw (140) be that part contact-making surface and first presss from both sides the size that the narrowest width between first abutment walls (114) of jaw (110) is substantially equal to this working substance W to be pulled;
And wherein this open driving part (100) further comprises wall within an indent (126), it extends from the first abutment walls (114) to the second abutment walls (124), the structure of this inwall (126) makes when this and is received in fully while driving in opening wait the drive end of pulling working substance (W), and this open driving part (100) can rotate along a second direction with respect to the drive end of this working substance to be pulled (W);
And wherein an inner segment of the first folder jaw (110) forms an inner fovea part (112), this inner fovea part (112) can, in the operating process that this spanner idle running is pulled back, hold the outstanding bight of working substance (W).
2. as the open fast wrench of claim 1, wherein be positioned at one while extending to a primary importance that drives opening fully when auxiliary jaw (140), the abutment face (143) of this auxiliary jaw (140) is positioned at this second plane at the second abutment walls (124) place.
3. as the open fast wrench of claim 1, wherein should auxiliary jaw (140) be received in slidably in the second folder jaw (120) between the base portion (121) of the second abutment walls (124) and open driving part (100).
4. as the open fast wrench of claim 1, in the time of wherein within the drive end wait pulling working substance (W) is divided the driving opening that is received in open driving part (100), this working substance to be pulled (W) can be rotated by the first abutment walls (114) and the second abutment walls (124); And, when the drive end wait pulling working substance (W) is received in the driving opening of open driving part (100) fully, this working substance to be pulled (W) can be rotated by the abutment face (143) of the first abutment walls (114) and auxiliary jaw (140).
5. as the open fast wrench of claim 1, wherein, when open driving part (100) rotates along this second direction wait pulling working substance (W) with respect to this, in being biased toward, this auxiliary jaw (140) enters in this second folder jaw (120).
6. an open fast wrench, its idle running is pulled back, and back and forth operation is to rotate a working substance to be pulled (W), and this working substance to be pulled has a drive end that contains at least one pair of relative engagement edge (WS), and this open fast wrench comprises:
One lever (H), it has an end;
One open driving part (100), it comprises one of this end base portion (121) of contiguous lever (H);
One first folder jaw (110), its base portion from this open driving part (100) (121) stretches out, and this first folder jaw (110) comprises the first abutment walls (114) of being located at one first plane;
One second folder jaw (120), its base portion from this open driving part (100) (121) stretches out, and make the first folder jaw (110) and the second folder jaw (120) define a driving opening, this drives the drive end of the structure receivability working substance to be pulled (W) of opening, and this second folder jaw (120) comprises the second abutment walls (124) of being located at one second plane; And
One auxiliary jaw (140), it comprises an abutment face (143), and this auxiliary jaw (140) is received in slidably in the second folder jaw (120) and the abutment face (143) of auxiliary jaw (140) is stretched out enter in this driving opening;
Wherein this first abutment walls (114) and the second abutment walls (124) roughly are parallel to each other, and with one first width separately, and be one second width between at least one pair of relative engagement edge (WS) of the drive end of this working substance to be pulled, this first width is substantially equal to this second width, and wherein be positioned at one while extending to a primary importance that drives opening fully when auxiliary jaw (140), the abutment face (143) that is somebody's turn to do auxiliary jaw (140) is positioned at this second plane at the second abutment walls (124) place, what make this auxiliary jaw (140) is that the narrowest width between first abutment walls (114) of part contact-making surface and the first folder jaw (110) is substantially equal to the size of this working substance W to be pulled, and
Wherein, described auxiliary jaw (140) also comprises a stopper slot (148), described the second folder jaw (120) also comprises an auxiliary jaw locating part (150), described auxiliary jaw locating part (150) and described stopper slot (148) coupling, should assist jaw (140) to be displaced into one with restriction and not be subject between the second place of bias voltage by the primary importance and of bias voltage;
Wherein this open driving part (100) further comprises wall within an indent (126), it extends from the first abutment walls (114) to the second abutment walls (124), the structure of this inwall (126) makes when this and is received in fully while driving in opening wait the drive end of pulling working substance (W), and this open driving part (100) can rotate along a second direction with respect to the drive end of this working substance to be pulled (W);
And wherein an inner segment of the first folder jaw (110) forms an inner fovea part (112), The inner fovea part (112) can, in the operating process that this spanner idle running is pulled back, hold the outstanding bight of working substance (W).
7. as the open fast wrench of claim 6, wherein the drive end of this working substance to be pulled (W) is received in this driving opening of this open driving part (100) slidably, make working substance to be pulled (W) can be under the cooperation of the first abutment walls (114) and the second abutment walls (124) and the cooperation of the first abutment walls (114) and the abutment face (143) of auxiliary jaw (140) under, towards a first direction rotation.
8. as the open fast wrench of claim 7, wherein should auxiliary jaw (140) be received in slidably in the second folder jaw (120) between the base portion (121) of the second abutment walls (124) and open driving part (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102748525A CN103433875A (en) | 2008-04-30 | 2008-04-30 | Open speed spanner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102748525A CN103433875A (en) | 2008-04-30 | 2008-04-30 | Open speed spanner |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810094485XA Division CN101570009A (en) | 2008-04-30 | 2008-04-30 | Open fast wrench |
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| CN103433875A true CN103433875A (en) | 2013-12-11 |
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| CN2057881U (en) * | 1989-10-09 | 1990-06-06 | 何水峰 | Open rotary spanner |
| CN2317047Y (en) * | 1997-07-12 | 1999-05-05 | 申志喜 | Wrench |
| US20040221693A1 (en) * | 2003-05-06 | 2004-11-11 | Kwang-Moo Kim | Self-adjustable universal spanner |
| CN2868567Y (en) * | 2005-12-06 | 2007-02-14 | 张慧铃 | Open wrench with single-way acting function |
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|---|---|---|---|---|
| US2879681A (en) * | 1957-10-28 | 1959-03-31 | Howard C Blasdell | Slidable jaw-face, open-end wrench |
| GB865800A (en) * | 1959-02-16 | 1961-04-19 | Columbia Products Inc | Open end wrench |
| CN2057881U (en) * | 1989-10-09 | 1990-06-06 | 何水峰 | Open rotary spanner |
| CN2317047Y (en) * | 1997-07-12 | 1999-05-05 | 申志喜 | Wrench |
| US20040221693A1 (en) * | 2003-05-06 | 2004-11-11 | Kwang-Moo Kim | Self-adjustable universal spanner |
| CN2868567Y (en) * | 2005-12-06 | 2007-02-14 | 张慧铃 | Open wrench with single-way acting function |
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Application publication date: 20131211 |