CN103962993A - Ratchet wrench - Google Patents
Ratchet wrench Download PDFInfo
- Publication number
- CN103962993A CN103962993A CN201310048194.8A CN201310048194A CN103962993A CN 103962993 A CN103962993 A CN 103962993A CN 201310048194 A CN201310048194 A CN 201310048194A CN 103962993 A CN103962993 A CN 103962993A
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- section
- head
- accommodation section
- clip
- torsion spring
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A ratchet wrench comprises a head and a turning device arranged on the head. The turning device comprises a direction button, a torque spring and a pawl. The direction button is provided with a polygonal section and a longitudinal groove recessed indie the polygonal section. The torque spring comprises at least one coil between a hidden section and an exposed section to allow the hidden section and each coil to be placed into the longitudinal groove of the polygonal section so as to allow the hidden section to be still. A movable section is formed between the exposed section and each coil. More than one pawl tooth is formed on the front side of the pawl. A transverse groove for accommodating the exposed section and part of the movable section is formed in the top surface of each pawl tooth. The dynamic state of the direction button can be responded to the pawl teeth in real time to allow the ratchet wrench to turn smoothly.
Description
Technical field
The present invention relates to the field of hand-held tool, refer to especially a kind ofly to determine unidirectional idle running, oppositely order about the transfer of the synchronous start of workpiece, and the ratchet spanner of this transfer is installed.
Background technology
U.S.'s bulletin the 1st, 957, No. 462 Patent Cases, disclosing ratchet spanner has a steady arm, and steady arm two ends connect one separately for the handle and the flat hollow hull shape head that grip, and head the inside forms two circular accommodation sections that communicate with each other.
One inserts the runner of the first accommodation section, its periphery is given prominence to some continuous teeth, and at runner central authorities shaping one corner post, corner post part is exposed head outside and can be inserted workpiece (as sleeve or extension bar etc.) and serve as fulcrum, allow user's operating handle to drive steady arm to rotate together with head, carry out locking or unscrew operation.
One transfer comprises: a clip pawl and of inserting the second accommodation section seals the direction button of the second accommodation section opening, and an axostylus axostyle is extended in direction button bottom surface, and axostylus axostyle and clip pawl possess start relation in the same way, is able to direction of operating button and decides clip pawl beat direction.
Clip pawl is in the face of before runner one side is defined as, and clip pawl is considered as to the back side towards handle one side.Before clip pawl, left and right side has respectively a profile of tooth clip group, and a clip group wherein keeps bridle joint relation in response to clip pawl beat direction with runner tooth around, determines the unidirectional idle running of corner post, oppositely orders about the synchronous start of workpiece.At the clip pawl back side, central authorities form a protrusion, and respectively there is a recess protrusion both sides, and a recess wherein offsets with an elastic parts in response to clip pawl beat direction, guarantees that it is normality that transfer maintains an orientation.
The shortcoming of this ratchet spanner is quite obvious, is exactly that corner post is only useful in the locking of low moment of torsion or unscrews job area.Once high moment of torsion is passed to workpiece by corner post, the reaction force of workpiece can export runner to through corner post equally, forms runner tooth and clip group escape phenomenon around, causes the anti-drawback that pushes away elastic parts of clip pawl.
Then see No. 289994 Patent Case of TaiWan, China bulletin, disclose the head of high torsion type ratchet spanner, one the 3rd accommodation section that can be shaped between two accommodation sections, in order to hold semilune clip pawl.Before clip pawl, arrange multiple continuous clip teeth, the clip pawl back side forms a curved surface, is one to run through the elongated hole of clip pawl between curved surface and clip tooth.
In the transfer of this high torsion type ratchet spanner, direction button bottom surface shaping one falls into the axle bed of the second accommodation section, and axle bed has the spring groove of an opening surface to clip pawl, allows a Compress Spring to insert spring groove the inside.Compress Spring one end and spring groove depth place offset, its other end exposes to axle bed and forms longitudinally section of a traversing section and, traversing section extends along Compress Spring axis direction, it is inserted one and is depressed in inside the level trough of direction button bottom surface, limit compression spring must not rotate arbitrarily, longitudinally the relative traversing section of section is bending, can insert elongated hole and form association, be beneficial to the monolateral position that direction button orders about clip pawl deflection and move to next-door neighbour the 3rd accommodation section, improve the small and weak shortcoming of aforementioned ratchet spanner output torque.
But Compress Spring is the metal wire rod that is coiled into a few, its diameter is less than the spacing distance of elongated hole two ends hole wall, to such an extent as to longitudinally section cannot, by direction button beat motion immediate reaction to clip pawl, postpone ratchet spanner about the execution that turns to operation.
Therefore, how to allow ratchet spanner immediate reaction and successfully execution turn to operation, just become the present invention's problem urgently to be resolved hurrily.
Summary of the invention
In view of this, the problem of inventor's further investigated background technology, relies on the experience of being engaged in for many years research and development and the manufacture of related industry, actively seek solution, finally successfully develop a kind of transfer, can be arranged on high torsion type ratchet spanner, to improve the problem of existing product.
One of the object of the invention is: adopt new transfer, obtain immediate reaction usefulness, ratchet spanner can be carried out smoothly and turn to operation.
Because of reaching of above-mentioned purpose, transfer provided by the present invention comprises:
One head;
One runner, this runner is inserted head and can not be left head by spinning motion;
One transfer, comprising:
One direction button, is positioned at outside head, and this direction button has one polygon section and one cannelure that is absorbed in polygon intersegmental part;
One torsion spring, torsion spring has the coil of at least one circle, coil is hidden between section and a revealed section between one, and order is hidden section and inserted the cannelure of polygon section together with coil and make to hide and section maintain motionless state, at revealed section to forming an active segment between coil; And
One clip pawl, is installed in head, and this clip pawl has one in order to hold this revealed section of torsion spring and the transverse groove of local this active segment, makes clip pawl and runner maintain bridle joint relation.
Described ratchet spanner, wherein, this head has second accommodation section of accommodating clip pawl, the second accommodation section is between one first accommodation section and one the 3rd accommodation section and communicate with each other, allow polygon section and direction button partial groups be contained in the 3rd accommodation section and can rotate, provide the active force towards the first accommodation section displacement with the active segment of torsion spring to clip pawl again.
The present invention also provides a kind of ratchet spanner, and it comprises:
One hollow hull shape head, head has one second accommodation section, the second accommodation section is between one first accommodation section and one the 3rd accommodation section and communicate with each other, and the 3rd accommodation section comprises that upper recess, a lower concave part and of straight-through second accommodation section make this upper recess and lower concave part keep the reducing diameter part being communicated with;
One runner, inserts head the first accommodation section and can spinning motion can not leave head, and runner below arranges a corner post that exposes head, and at the outstanding multiple continuous teeth of runner periphery;
One transfer, comprising:
One direction button, has polygon section of the rectangle that gos deep into upper recess, along the diagonal cannelure that caves in, relies on the riveting part of an outstanding polygon section of below in polygon section of corner, but can not leave by reducing diameter part, to such an extent as to the relative head flexible rotating of direction button;
One torsion spring, between torsion spring two ends, there is the coil of at least one circle, extend an active segment to torsion spring one end along the vertical direction of radius from coil, the bending revealed section of active segment tip, bending one hide section from coil to the torsion spring other end along radial direction, hide section and jointly insert in the cannelure of polygon section with coil, make to hide the motionless state that section maintains; And
One clip pawl, clip pawl is inserted in the second accommodation section, at least one clip tooth is shaped before clip pawl, the transverse groove of this revealed section and this active segment is held in clip pawl end face shaping one, order about clip pawl towards the first accommodation section displacement with the active force of torsion spring, make the tooth that clip tooth is corresponding with runner keep bridle joint occluding relation.
Described ratchet spanner, wherein, this direction button has a disk and to form in the foot piece of disk periphery, and disk is positioned at polygon section of top and exposes head outside, lead to the indicator hole of cannelure to polygon section of shaping one from disk end face, hiding section of holding torsion spring in indicator hole.
Described ratchet spanner, wherein, also comprises that one is the direction board of triangle moulding, and direction board is filled up indicator hole and be positioned at the opening of disk end face and shape symmetry, and one jiao of this direction board can identification active segment and the orientation of revealed section.
Described ratchet spanner, wherein, a bar that gos deep into indicator hole is given prominence in this direction board bottom surface.
Described ratchet spanner, wherein, this transverse groove comprises that one holds that the shallow ridges of this revealed section and a degree of depth increase progressively toward the clip pawl back side from shallow ridges and the dark canal that can collect this active segment.
Described ratchet spanner, wherein, this Shen Qu both sides width, the narrowest to be close to shallow ridges place, wider near the clip pawl back side.
Described ratchet spanner, wherein, this clip pawl back side has the curvature that is similar to the second accommodation section enclosure wall, and clip pawl back side central authorities be shaped one expand polygon section with the recess of torsion spring scope of activities.
In the time that direction button exposes the position stressed beat of head, the coil of torsion spring is limited to polygon section of cannelure wall, can be by the direction button amplitude of oscillation by revealed section and active segment immediate reaction to transverse groove wall, related clip pawl, along with direction button moves in the same way the monolateral position of next-door neighbour the second accommodation section and can carry out smoothly and turn to operation, solves prior art effectively about the drawback postponing.
Below, based on accompanying drawing in detail object, structure and the feature of related embodiment is described in detail, believes technology, means and effect that the present invention adopts, when can by one deeply and concrete understanding.
Brief description of the drawings
Fig. 1 is the ratchet spanner one preferred embodiment partial perspective view that the present invention is provided with transfer;
Fig. 2 is the stereogram of cutting ratchet spanner head open and transfer being decomposed;
Fig. 3 is the sectional plain-view drawing that transfer is combined in ratchet spanner head;
Fig. 4 is the stereogram after transfer decomposes;
Fig. 5, Fig. 6 are the action diagram of ratchet spanner operation transfer.
Description of reference numerals: 10-ratchet spanner; 11-steady arm; 12-power transmission shaft; 13-pinion; 14-Compress Spring; 15-steel ball; 20-head; 21-the first accommodation section; 22-the second accommodation section; 23-axis hole; 24-the 3rd accommodation section; 25-upper recess; 26-lower concave part; 27-reducing diameter part; 28-skewed slot; 30-runner; 31-corner post; 32-linkage section; 33-fluted disc; 34-tooth; 35-fastener; 36-circular hole; 37-press component; 38-spheroid; 40-transfer; 41-direction button; 42-disk; 43-circle segments; 44-foot piece; Polygon section of 45-; 46-riveting part; 47-cannelure; 48-indicator hole; 50-torsion spring; 51-coil; 52-active segment; 53-revealed section; 54-hides section; 60-clip pawl; 61-clip group; 62-clip tooth; Before 63-; 64-side; The 65-back side; 66-recess; 67-transverse groove; 68-shallow ridges; The dark canal of 69-; 70-direction board; 72-thin bar.
Detailed description of the invention
Refer to Fig. 1, illustrate the concrete structure of ratchet spanner 10.This ratchet spanner 10 has a steady arm 11, steady arm 11 one end are connected with flat head 20, head 20 is hollow shell mould and has upper and lower the first accommodation section 21 of running through, be enough to hold relative head 20 spinning motions of runner 30, runner 30 belows have square corner post 31, and it exposes head 20 and can locally insert workpiece (as sleeve or extension bar etc.) and serve as fulcrum.
This ratchet spanner 10 is gone back jug (accompanying drawing is not painted), it is connected to steady arm 11 other ends and is beneficial to user's operation of holding with a firm grip, can drive steady arm 11 together with head 20 around workpiece beat or rotation, determine that with transfer 40 corner post 31 is along suitable, an anti-clockwise output torque, carry out smoothly locking or unscrew operation.
Aforementioned steady arm 11, for body designs, allows a power transmission shaft 12, as Fig. 2, a part is hidden in to steady arm 11 the insides deeply.An end formed pinion 13 of these power transmission shaft 12 remainders, can form in the axis hole 23 of head 20 and the first accommodation section 21 is exposed in part by one.
In Fig. 2, the first accommodation section 21 of this head 20 is circular class hole, and its small diameter bore section is positioned at head 20 belows and communicates with axis hole 23, is enough to hold relative head 20 spinning motions of linkage section 32 of a non-circle.In the first accommodation section 21, diametric hole section is held a fluted disc 33, and this fluted disc 33 is ring body design, and its internal diameter shape is symmetrical in linkage section 32 profiles, can be enclosed within linkage section 32 outsides and cause raw synchronous start effect, the aforementioned pinion 13 of bridle joint interlock simultaneously.Be positioned at head 20 tops as for the large diameter hole Duan Ze of the first accommodation section 21, not only hold the runner 30 of the multiple continuous teeth 34 of periphery circular row and can not fall middle diametric hole section, can also communicate with each other with same semicircle the second accommodation section 22 and the 3rd accommodation section 24 that forms in head 20 the insides, and the unidirectional idle running of decision runner 30, the reverse transfer 40 along with head 20 rotating in same directions are installed in second, third accommodation section 22,24.
The 3rd accommodation section 24 in figure, comprise a upper recess 25, staggered by the lower concave part 26 of axis hole 23 by head 20 bottom surfaces for straight-through the second accommodation section 22 of 20 end faces from the head, and one penetrates wall between the second accommodation section 22 and axis hole 23 and makes upper and lower recess 25,26 keep the reducing diameter part 27 being communicated with.Adjoining the upper recess 25 walls skewed slot 28 that caves in, in groove, hold a Compress Spring 14, this Compress Spring 14 withstands skewed slot 28 depths walls, and supply one steel ball 15 touches the required elastic acting force of transfer 40.
As shown in Figure 3, aforementioned linkage section 32, between runner 30 and corner post 31, three are combined into one and can be at the first accommodation section 21 the inside rotating in same directions of head 20.Because linkage section 32 is inlayed a fastener 35 that props up head 20 bottom surfaces, add another fastener 35 that embeds the first accommodation section 21 large diameter hole section walls and cause raw bore reduction effect, restriction runner 30 cannot leave head 20 via large diameter hole section together with linkage section 32 and corner post 31.
Get back to Fig. 2, the self-rotation wheel 30 end faces central authorities circular hole 36 that is shaped to corner post 31 bottom surfaces, arranges a stressed press component 37 that presses down and can elasticity playback in the hole in, and control one spheroid 38 of imbedding corner post 31 moves around between an exposure position and a hidden position.
Alleged exposure position herein, refers to that spheroid 38 is higher than above positions, corner post 31 surface, that is spheroid 38 parts expose corner post 31 outsides, causes raw clip effect for the workpiece that is enclosed within corner post 31.
Alleged hidden position herein, refer to spheroid 38 lower than corner post 31 surfaces with upper/lower positions, that is dark corner post 31 the insides of ensconcing of spheroid 38, are beneficial to workpiece and unload from corner post 31.
Aforementioned transfer 40 as shown in Figure 2, Figure 4 shows, is made up of with clip pawl 60 direction button 41, torsion spring 50.
Wherein, this direction button 41 has a disk 42, disk 42 belows form the smaller circle segments of a diameter 43, enter the upper recess 25 of the 3rd accommodation section 24 with circle segments 43, until head 20 surfaces are touched in disk 42 bottom surfaces, make direction button 41 form in the peripheral foot piece 44 of disk 42 and expose head 20 outsides.Polygon section 45, the rectangle that extends certain lengths in circle segments 43 bottom surfaces, polygon section of 45 diagonal distance are less than circle segments 43 diameters, are but greater than reducing diameter part 27 diameters, can oblong section 43 go deep into together upper recess 25 the insides.Utilize pressing equipment or equipment by lower concave part 26, polygon section of 45 belows outstanding to be carried out and extended out forming operation by the riveting part 46 of reducing diameter part 27, be enough to allow the riveting part 46 of expansion be hampered by reducing diameter part 27 peripheral wall surface (as Fig. 3), restriction direction button 41 can not detach the 3rd accommodation section 24, but can control polygon section 45 relative head 20 beat certain angles with stressed foot piece 44.
Torsion spring 50 in figure is wires materials, position, intermediate portion forms the coil 51 of at least one circle, extend the active segment 52 of certain length along the vertical direction of radius to wire rod one end from coil 51, at the bending one section of revealed section 53 of active segment 52 tips, the angle between revealed section 53 and active segment 52 is less than 180 °.This coil 51 arrives hiding section 54 along the bending certain length of radial direction of the wire rod other end, hide section 54 and jointly insert a cannelure 47 that is absorbed in polygon section of 45 corners along diagonal with coil 51, to such an extent as to hide section 54 insert one from disk 42 end faces through circle segments 43 axle center to the indicator hole 48 of polygon section of 45 cannelures 47.
Because it is slightly large that indicator hole 48 leads to the hiding section of relative aperture 54 diameters of cannelure 47, be limited to indicator hole 48 walls and maintain motionless state so hide section 54, support activities section 52 and revealed section 53 exceed cannelure 47 openings.In addition, one direction board 70 bottom surfaces that are triangle moulding are along the outstanding thin bar 72 of normal (being vertical bottom face direction), thin bar 72 is goed deep in indicator hole 48, make direction board 70 fill up indicator hole 48 being positioned at the opening of disk 42 end faces and shape symmetry, see through align a jiao of cannelure 47 openings of direction board 70, guiding user identification torsion spring 50 active segments 52 and the orientation of revealed section 53 in the second accommodation section 22.
Aforementioned clip pawl 60 is semilune block, insert the second accommodation section 22 and freely activity, have two clip groups 61 and a transverse groove 67, each clip group 61 is made up of three continuous clip teeth 62, and each clip tooth 62 forms in clip pawl 60 63 positions of adjoining side 64 above.As for 67 of transverse grooves form in clip pawl 60 end faces between above 63 and the back side 65 between position, it is distinguished one and is absorbed in clip pawl 60 central authorities and shallow ridges 68 and the degree of depth that can hold revealed section 53 increases progressively the dark canal 69 that is enough to collect local active segment 52 toward the back side 65 from shallow ridges 68, the bottom surface receiving coil 51 that dark canal 69 tilts is passed to the active force of active segment 52, and the tooth 34 that promotion clip tooth 62 engages runner 30 correspondences is normality (as Fig. 3).As for dark canal 69 both sides width, the narrowest to be close to shallow ridges 68 places, wider near the back side 65, avoid active segment 52 overbending distortion.
In addition, clip pawl 60 is similar to the back side 65 central authorities' shaping one recesses 66 of the second accommodation section 22 enclosure walls in curvature, to providing larger scope of activities at polygon section 45 of 22,24 motions of second, third accommodation section with torsion spring 50, clip pawl 60 can be moved around on 22 both sides, the second accommodation section more neatly.
Next, specifically state the service condition of transfer.In Fig. 5, foot piece 44 is stressed along beat clockwise, order about relative head 20 rotating in same directions of direction button 41, related polygon section 45 at the 3rd accommodation section 24 the inside spinning motions, and be subject under the contained condition of cannelure 47 walls at coil 51, by direction button 41 rotational angles (or foot piece 44 amplitudes of fluctuation) immediate reaction to torsion spring 50, by active segment 52 and the restraining function of revealed section 53 to transverse groove 67 walls, related clip pawl 60 moves on to the second accommodation section 22 and is positioned at the monolateral position of drawing top.
This active segment 52 is in dark canal 69 amplitudes of oscillation, be greater than the motion amplitude of revealed section 53 at shallow ridges 68, make the slightly bending active force that causes raw reinstatement of active segment 52 and revealed section 53 joining places, support card pawl 60 is arranged in 63 liang of whole clip teeth 62 of clip group 61 above and maintains meshing relation with runner 30 tooth 34 around.This restoring force is less than Compress Spring 14 and supports steel ball 15 to touch the thrust of polygon section of 45 appearances, to such an extent as to direction button 41 keeps beat orientation together with foot piece 44, can not change arbitrarily.
So, the handle of ratchet spanner 10 is followed Fig. 5 solid arrow and around during serving as workpiece (as sleeve or the extension bar etc.) rotation of fulcrum, see through the contact relation at the second accommodation section 22 walls and clip pawl 60 back sides 65, the kinetic energy of ratchet spanner 10 is passed to intermeshing tooth 34 and clip tooth 62, orders about runner 30 and drive workpiece (as sleeve or extension bar etc.) along with head 20 rotating in same directions.
On the contrary, during ratchet spanner 10 is followed the rotation of Fig. 5 dotted arrow with handle, tooth 34 and not revival of clip tooth 62 meshing relations, interrupt the kinetic energy output of ratchet spanner 10, to such an extent as to runner 30 forms non-power idle running phenomenon in 21 the insides, the first accommodation section.
Finally see Fig. 6, foot piece 44 is stressed along counterclockwise beat, orders about direction button 41 and drives polygon section 45 at the 3rd accommodation section 24 the inside revolution certain angles.Torsion spring 50 pins down transverse groove 67 walls with active segment 52 and revealed section 53, and related clip pawl 60 moves on to the second accommodation section 22 and be positioned at the monolateral position of drawing below.
In the time that ratchet spanner 10 is followed the rotation of Fig. 6 solid arrow, its kinetic energy is passed to intermeshing tooth 34 and clip tooth 62, drives workpiece (as sleeve or extension bar etc.) along with head 20 rotating in same directions with runner 30.
In the time that ratchet spanner 10 is followed the rotation of Fig. 6 dotted arrow, can interrupt the kinetic energy output of ratchet spanner 10, make runner 30 maintain idling conditions in 21 the insides, the first accommodation section.
Therefore, this transfer 40 improves the shortcoming of prior art, can be by the dynamic immediate reaction of direction button 41 to clip pawl 60, and allow ratchet spanner 10 carry out and to turn to operation smoothly.
Above-described embodiment is only explanation the present invention, and non-is restriction the present invention.Have the knack of this skill person from the derivative various variations of above-described embodiment, amendment and apply all in category of the present invention.
Claims (9)
1. a ratchet spanner, is characterized in that, comprising:
One head;
One runner, this runner is inserted head and can not be left head by spinning motion;
One transfer, comprising:
One direction button, is positioned at outside head, and this direction button has one polygon section and one cannelure that is absorbed in polygon intersegmental part;
One torsion spring, torsion spring has the coil of at least one circle, coil is hidden between section and a revealed section between one, and order is hidden section and inserted the cannelure of polygon section together with coil and make to hide and section maintain motionless state, at revealed section to forming an active segment between coil; And
One clip pawl, is installed in head, and this clip pawl has one in order to hold this revealed section of torsion spring and the transverse groove of local this active segment, makes clip pawl and runner maintain bridle joint relation.
2. ratchet spanner as claimed in claim 1, it is characterized in that, this head has second accommodation section of accommodating clip pawl, the second accommodation section is between one first accommodation section and one the 3rd accommodation section and communicate with each other, allow polygon section and direction button partial groups be contained in the 3rd accommodation section and can rotate, provide the active force towards the first accommodation section displacement with the active segment of torsion spring to clip pawl again.
3. a ratchet spanner, is characterized in that, comprising:
One hollow hull shape head, head has one second accommodation section, the second accommodation section is between one first accommodation section and one the 3rd accommodation section and communicate with each other, and the 3rd accommodation section comprises that upper recess, a lower concave part and of straight-through second accommodation section make this upper recess and lower concave part keep the reducing diameter part being communicated with;
One runner, inserts head the first accommodation section and can spinning motion can not leave head, and runner below arranges a corner post that exposes head, and at the outstanding multiple continuous teeth of runner periphery;
One transfer, comprising:
One direction button, has polygon section of the rectangle that gos deep into upper recess, along the diagonal cannelure that caves in, relies on the riveting part of an outstanding polygon section of below in polygon section of corner, but can not leave by reducing diameter part, to such an extent as to the relative head flexible rotating of direction button;
One torsion spring, between torsion spring two ends, there is the coil of at least one circle, extend an active segment to torsion spring one end along the vertical direction of radius from coil, the bending revealed section of active segment tip, bending one hide section from coil to the torsion spring other end along radial direction, hide section and jointly insert in the cannelure of polygon section with coil, make to hide the motionless state that section maintains; And
One clip pawl, clip pawl is inserted in the second accommodation section, at least one clip tooth is shaped before clip pawl, the transverse groove of this revealed section and this active segment is held in clip pawl end face shaping one, order about clip pawl towards the first accommodation section displacement with the active force of torsion spring, make the tooth that clip tooth is corresponding with runner keep bridle joint occluding relation.
4. ratchet spanner as claimed in claim 3, it is characterized in that, this direction button has a disk and to form in the foot piece of disk periphery, disk is positioned at polygon section of top and exposes head outside, lead to the indicator hole of cannelure to polygon section of shaping one from disk end face, hiding section of holding torsion spring in indicator hole.
5. ratchet spanner as claimed in claim 4, is characterized in that, also comprises that one is the direction board of triangle moulding, and direction board is filled up indicator hole and be positioned at the opening of disk end face and shape symmetry, and one jiao of this direction board can identification active segment and the orientation of revealed section.
6. ratchet spanner as claimed in claim 5, is characterized in that, a bar that gos deep into indicator hole is given prominence in this direction board bottom surface.
7. the ratchet spanner as described in any one in claim 3 to 6, is characterized in that, this transverse groove comprises that one holds that the shallow ridges of this revealed section and a degree of depth increase progressively toward the clip pawl back side from shallow ridges and the dark canal that can collect this active segment.
8. ratchet spanner as claimed in claim 7, is characterized in that, this Shen Qu both sides width is the narrowest to be close to shallow ridges place, wider near the clip pawl back side.
9. ratchet spanner as claimed in claim 8, is characterized in that, this clip pawl back side has the curvature that is similar to the second accommodation section enclosure wall, and clip pawl back side central authorities be shaped one expand polygon section with the recess of torsion spring scope of activities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048194.8A CN103962993A (en) | 2013-02-06 | 2013-02-06 | Ratchet wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310048194.8A CN103962993A (en) | 2013-02-06 | 2013-02-06 | Ratchet wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103962993A true CN103962993A (en) | 2014-08-06 |
Family
ID=51233241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310048194.8A Pending CN103962993A (en) | 2013-02-06 | 2013-02-06 | Ratchet wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103962993A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346404A (en) * | 2015-07-17 | 2017-01-25 | 张秀华 | Knob and Ratchet Spanner with the Knob |
| CN109968255A (en) * | 2019-04-04 | 2019-07-05 | 宁波工程学院 | A kind of narrow space double nut determines torque and synchronizes pre- spanner |
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| US20030192408A1 (en) * | 2002-04-10 | 2003-10-16 | The Stanley Works | Ratchet wrench with improved force distribution |
| CN1644321A (en) * | 2004-01-21 | 2005-07-27 | 陈泰佐 | Reversible driving rotary spanner |
| US20070000357A1 (en) * | 2004-07-14 | 2007-01-04 | Chih-Ching Hsieh | Ratchet tool having operation levers on two sides of the tool |
| CN201394802Y (en) * | 2009-04-14 | 2010-02-03 | 史丹利七和国际股份有限公司 | Switch type ratchet wrench |
| CN201931393U (en) * | 2011-03-15 | 2011-08-17 | 山东金聚粉末冶金有限公司 | Pawl reversing mechanism of bidirectional wrench |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030192408A1 (en) * | 2002-04-10 | 2003-10-16 | The Stanley Works | Ratchet wrench with improved force distribution |
| CN1644321A (en) * | 2004-01-21 | 2005-07-27 | 陈泰佐 | Reversible driving rotary spanner |
| US20070000357A1 (en) * | 2004-07-14 | 2007-01-04 | Chih-Ching Hsieh | Ratchet tool having operation levers on two sides of the tool |
| CN201394802Y (en) * | 2009-04-14 | 2010-02-03 | 史丹利七和国际股份有限公司 | Switch type ratchet wrench |
| CN201931393U (en) * | 2011-03-15 | 2011-08-17 | 山东金聚粉末冶金有限公司 | Pawl reversing mechanism of bidirectional wrench |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346404A (en) * | 2015-07-17 | 2017-01-25 | 张秀华 | Knob and Ratchet Spanner with the Knob |
| CN109968255A (en) * | 2019-04-04 | 2019-07-05 | 宁波工程学院 | A kind of narrow space double nut determines torque and synchronizes pre- spanner |
| CN109968255B (en) * | 2019-04-04 | 2020-12-22 | 宁波工程学院 | Narrow-distance double-nut fixed-torque synchronous pre-tightening wrench |
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Application publication date: 20140806 |