CN102554838A

CN102554838A - Open ratchet spanner and manufacturing method thereof

Info

Publication number: CN102554838A
Application number: CN201010604218XA
Authority: CN
Inventors: 约翰·史坦顿
Original assignee: DESS INDUSTRIAL Co Ltd
Current assignee: DESS INDUSTRIAL Co Ltd
Priority date: 2010-12-24
Filing date: 2010-12-24
Publication date: 2012-07-11
Anticipated expiration: 2030-12-24
Also published as: CN102554838B

Abstract

The invention relates to an open ratchet spanner and a manufacturing method thereof. The open ratchet spanner mainly comprises a set opening for sleeving a fixing workpiece. A spanner head seat comprises a first clamping jaw and a second clamping jaw, wherein the first clamping jaw at least consists of a first pushing surface contacting with the fixing workpiece, the second clamping jaw consists of an arc-shaped inner surface facing to the opening and a movable spanner plate, the movable spanner plate is mounted on the second clamping jaw, moves along with the second clamping jaw and at least comprises a second pushing surface so as to contact with the fixing workpiece, the movable spanner plate further comprises an arc-shaped outer surface, and the arc-shaped outer surface can be attached to the arc-shaped inner surface of the second clamping jaw and slides on the arc-shaped inner surface.

Description

Open end ratchet wrench and manufacturing approach thereof

Technical field

The present invention relates to a kind of ratchet spanner.

Background technology

Can know that according to prior art fixation workpiece (such as the hexagon joint of hexagon nut, hexagon bolt and hydraulic line) often must reverse to reach the fastening of winding, for example fixation workpiece is fastening or loosen along with screw member rotates; Can pull the hand-held tool that retaining element reverses and use always, two kinds of forms are arranged haply, be respectively ratchet spanner and open type meniscus spanner; Ratchet spanner generally all contains the seal type headstock fully and is nested with on the fixation workpiece top or bottom (look the fixation workpiece direction and decide) pulls; And open-end wrench is to be planted by the fixation workpiece side with the set opening of headstock to pull.

Can know that according to prior art ratchet spanner is handy especially in the small space of pulling of can't spanner being planted by side, and open-end wrench is handy especially in than large space, pulls because it can be planted by the fixation workpiece side.

How therefore a kind of open end ratchet wrench that use is all fitted in any space of dealing with can be provided, its necessity is arranged in fact, this grinds the motivation place of wound for the present invention.

Summary of the invention

Deficiency to prior art the objective of the invention is to: a kind of open end ratchet wrench and manufacturing approach thereof are provided, can both use in any space.

For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:

A kind of open end ratchet wrench is characterized in that: comprise that a setting accepts the spanner headstock of fixation workpiece opening, this spanner headstock comprises one first jaw, and this first jaw comprises first a promotion face of fitting with the fixation workpiece surface at least; Second jaw, it comprises an arc inner surface and the Flexible spanner sheet that is installed on second jaw in the face of opening, the Flexible spanner sheet can move with second jaw; This Flexible spanner sheet comprises one second promotion face at least, and the Flexible spanner sheet also comprises an arc-shaped outer surface of fitting with the set arc inner surface of second jaw, and this Flexible spanner sheet and the edge second jaw arc inner surface slide.

Wherein: the opening of spanner headstock, part is besieged, and an inlet is arranged to accept fixation workpiece between first jaw and Flexible spanner sheet.

Wherein: the radian of the arc inner surface of second jaw and the arc-shaped outer surface of Flexible spanner sheet is identical.

Wherein: second jaw comprises one in addition by the support keel of arc inner surface to the opening stretching, extension.

Wherein: the Flexible spanner sheet comprises a near-end and an end, and the near-end of Flexible spanner sheet merges in end after being separated by open space.

Wherein: the support keel of second jaw is in two of Flexible spanner sheet is pulled the open space between the sheet element.

Wherein: support keel comprises an arc guide channel, and the spanner headstock comprises that one should be fixed on Flexible spanner sheet two and pulls the latch on the sheet element, passes the arc guide channel and is assembled on second jaw with this latch.

Wherein: the length of arc guide channel is enough to make latch in the arc guide channel, to move.

Wherein: the direction of arc guide channel can be held latch and move, and the arc-shaped outer surface that makes the Flexible spanner sheet slides and do not contact at the arc inner surface of second jaw.

Wherein: latch moves in the arc guide channel and does not touch support keel.

Wherein: the sheet element of pulling of Flexible spanner sheet comprises a groove formula near-end, and the spanner headstock comprises that one should be fixed on support keel and pass the latch of pulling sheet element groove formula near-end.

Wherein: the groove size of pulling sheet element of Flexible spanner sheet is bigger than latch size.

Wherein: the spanner headstock comprises that more one is attached on the spanner headstock and the spring between the Flexible spanner sheet.

Wherein: first and second promotion face is the plane.

Wherein: first jaw and Flexible spanner sheet are set out 6 angle ends and are nested with form.

Wherein: first and second symmetrical centre that promotes face is equipped with recess.

Wherein: first jaw and Flexible spanner sheet are set out ten two angle ends and are nested with form.

Wherein: first jaw and the second jaw state type.

A kind of method of making open end ratchet wrench is characterized in that, comprising:

Be ready to a spanner headstock; The spanner headstock comprises one first jaw, second jaw with the opening portion sealing, and second jaw comprises the arc inner surface of one side pairs of openings; And a Flexible spanner sheet is installed on second jaw; And this Flexible spanner sheet is movable with second jaw, Flexible spanner sheet operation wherein is installed still comprises the arc inner surface applying of Flexible spanner sheet with the arc-shaped outer surface and second jaw, and arc-shaped outer surface is slided along the arc inner surface.

Wherein: the Flexible spanner sheet is installed is more comprised with spring on the spanner headstock and Flexible spanner chip bonding.

Wherein: the Flexible spanner sheet is installed is more comprised and can a latch be fixed on the Flexible spanner sheet, and pass the arc guide channel of second jaw, latch then moves in the arc guide channel.

A kind of open end ratchet wrench device that comprises following assembly is characterized in that:

An open end ratchet wrench that on first jaw and second jaw, is formed with an opening, Flexible spanner sheet are that lock-out state slides with the arc inner surface that arc-shaped outer surface is fitted in second jaw; And by the fixation workpiece step of packing into of the breach between first jaw and Flexible spanner sheet, the Flexible spanner sheet slides with the arc inner surface of arc-shaped outer surface at second jaw, makes the Flexible spanner sheet state that unlocks, and strengthens gap width with the fixation workpiece of packing into; And behind the fixation workpiece of packing into, the arc-shaped outer surface of Flexible spanner sheet slides at the arc inner surface of second jaw, makes the Flexible spanner sheet reply the fixation workpiece of catching of lock-out state.

A kind of open end ratchet wrench that comprises following assembly is characterized in that:

One first state type jaw; A Flexible spanner sheet that is installed on the second state type jaw; The first state type jaw surfaces and Flexible spanner sheet part center on an opening, so that a fixation workpiece is inserted open end ratchet wrench; Latch is fixed on the Flexible spanner sheet on the second state type jaw and pull force is sent to the second state type jaw and need not be passed latch by the Flexible spanner sheet.

With pack into first jaw and be installed in the opening that sets between the Flexible spanner sheet on open end ratchet wrench second jaw of fixation workpiece, the first promotion face and the surface that this fixation workpiece has a surface and first jaw at least pasted with second and third promotion face of Flexible spanner sheet and touched; And the Flexible spanner sheet has the arc inner surface of an arc-shaped outer surface and second jaw to fit; Installed fixation workpiece is turned to driving direction, and fixation workpiece and Flexible spanner sheet keep inactive state to first and second jaw; And when ratchet rotates installed fixation workpiece towards the ratchet direction; This fixation workpiece still keeps inactive state in primary importance; And the Flexible spanner sheet has at least part surface to break away from first jaw and fixation workpiece surface, and the arc-shaped outer surface of Flexible spanner sheet then slides at the arc inner surface of second jaw.

Compared with prior art, the beneficial effect that has of the present invention is:

According to according to the invention and open end ratchet wrench, comprise that one opens spanner to accept the spanner headstock of fixation workpiece; The spanner headstock includes one first jaw, second jaw and is installed in the Flexible spanner sheet on second jaw; This first jaw is provided with the first promotion face that can accept fixation workpiece; This second jaw is in the face of opening is provided with an arc inner surface; This Flexible spanner sheet; The inboard is provided with the second promotion face and the 3rd promotion face that can accept fixation workpiece; The outside is provided with can be with the arc-shaped outer surface of the set arc inner surface applying of second jaw; The Flexible spanner sheet is installed on the support keel of second jaw, slides with the arc inner surface of its arc-shaped outer surface along second jaw.

Opening is partially enclosed spanner headstock, has an inlet can accept fixation workpiece between its first jaw and Flexible spanner sheet; The arc inner surface of second jaw is identical with the radian of the arc-shaped outer surface of Flexible spanner sheet; Second jaw includes one in addition by the support keel of arc inner surface to the opening extension; The Flexible spanner sheet then comprises a near-end and an end, and the Flexible spanner sheet include in addition the proximal end with the open space district at a distance from separately and terminal join pull sheet element; The support keel of second jaw places in the open space of pulling sheet element of Flexible spanner sheet; Support keel includes an arc guide channel, should be fixed on to pull and to pass perforation the Flexible spanner sheet is installed in the latch on second jaw on the sheet element and the spanner headstock more includes one; The length of arc guide channel is enough to let latch along with the arc guide channel moves; The direction of arc guide channel is through suitably setting so that latch moves, make the Flexible spanner sheet with arc-shaped outer surface when the arc inner surface of second jaw slides, arc-shaped outer surface and arc inner surface are pasted each other touch; When latch moves in the arc guide channel, do not paste each other and touch with support keel; The near-end of Flexible spanner sheet is pulled sheet element and is then comprised a perforation, and the spanner headstock then comprises a latch that should be attached to support keel, passes the perforation of pulling on the sheet element with latch; And the size that the near-end of Flexible spanner sheet is pulled the set perforation of sheet element all than latch for big; The spanner headstock comprises that in addition one is arranged on the spring that the first promotion face and second promotes face, makes first jaw and Flexible spanner sheet can set out 6 angle end form spanners; Be respectively equipped with recess on the first promotion face of spanner headstock and the second promotion face in addition, make first jaw and Flexible spanner sheet can set out ten two angle end form spanners; First jaw is static shape with respect to second jaw.

According to the open end ratchet wrench forming method that content of the present invention is addressed, this method comprises a spanner headstock, and this spanner headstock comprises first jaw and second jaw of sealing the part opening, and second jaw then comprises the arc inner surface of one side pairs of openings; And a Flexible spanner sheet is installed on second jaw, the Flexible spanner sheet can be movable along second jaw simultaneously; The Flexible spanner sheet is installed is comprised that the Flexible spanner sheet is fitted in the arc inner surface of second jaw with arc-shaped outer surface, the Flexible spanner sheet can slide with the arc inner surface of arc-shaped outer surface along second jaw; The Flexible spanner sheet is installed more can be comprised with the Flexible spanner sheet and be attached to a spring on the spanner headstock; The Flexible spanner sheet is installed is comprised more a latch is fixed on the Flexible spanner sheet that so that latch passes the arc guide channel in second jaw, and this latch moves in the arc guide channel.

A kind of open end ratchet wrench device is then explained in another aspect, and a Flexible spanner sheet is installed on first jaw and second jaw, makes to be formed with an opening that can supply fixation workpiece to be nested with between first jaw and Flexible spanner sheet; The Flexible spanner sheet can be fitted in arc-shaped outer surface in latched position on the arc inner surface of second jaw and slide; The arc-shaped outer surface of Flexible spanner sheet slides on the arc inner surface of second jaw and the Flexible spanner sheet is pushed away lock-out state, and opening part is widened to be nested with fixation workpiece; After overlapping appropriate fixation workpiece, the arc-shaped outer surface of Flexible spanner sheet slides along the arc inner surface of second jaw, and it is that lock-out state is to catch fixation workpiece that the Flexible spanner sheet is replied.

Explain then on the one hand that more a kind of fixation workpiece is inserted by first jaw and second jaw of an open end ratchet wrench install the shedding motion that the Flexible spanner sheet forms; Fixation workpiece is the promotion face of surface engagement first jaw at least, and the promotion face of a surface engagement Flexible spanner sheet; The Flexible spanner sheet has the fit arc inner surface of second jaw of an arc-shaped outer surface; This device includes the driving direction mode that fixation workpiece turns to that is nested with in addition; Fixation workpiece and Flexible spanner sheet all are inactive state on first jaw and second jaw; This device also comprises the action that fixation workpiece is changed over to along the ratchet direction of operating; Fixation workpiece all is inactive state on primary importance and Flexible spanner sheet.

Another aspect is then explained and is comprised one first state type jaw; A Flexible spanner sheet that is installed on the second state type jaw, one is fixed on the Flexible spanner sheet on the second state type jaw open end ratchet wrench that power is not passed latch so that power is sent to the second state type jaw by the Flexible spanner sheet; The part surface of the first state type jaw and Flexible spanner sheet all around an opening to accept the fixation workpiece in the open end ratchet wrench.

Description of drawings

Fig. 1 is the vertical view that open end ratchet wrench of the present invention is nested with fixation workpiece;

Fig. 2 is the assembling outside drawing of open end ratchet wrench of the present invention;

Fig. 3 A is the spanner headstock outside drawing of open end ratchet wrench of the present invention;

Fig. 3 B is the Flexible spanner sheet outside drawing of open end ratchet wrench of the present invention;

Fig. 3 C is the Flexible spanner sheet rearview of open end ratchet wrench of the present invention;

Fig. 4 is the graph of a relation of open end ratchet wrench assembling spring of the present invention and Flexible spanner sheet;

Fig. 5 is the sketch map of open end ratchet wrench operation drive fixing workpiece of the present invention;

Fig. 6 is the sketch map that open end ratchet wrench operation ratchet of the present invention rotates.

Description of reference numerals: 1 spanner; 10 latches; 12 arc guide channels; The last arcwall face of 12a; 12b arc lower face; The 12C near-end; 12D is terminal; 13 first promotion faces; The last cut surface of 13a; Cut surface under the 13b; 14 Flexible spanner sheets; 15 second promotion faces; Cut surface under the 15a; The last cut surface of 15b; 16 keel; 17 the 3rd promotion faces; 18 arc-shaped outer surfaces; The 19CW central point; 2 headstocks; 23 outer member; 24 springs; 26 borings; 27 arc inner surfaces; 28 overhanging members; 29 overhanging members; 3 openings; 31 jiaos of ends; 32 stoppers; 33 solid-state ends; 35 groove formula near-ends; 35a pulls sheet element; 35b pulls sheet element; The 37a perforation; The 37b perforation; The 39CMP central point; 4 first jaws; 40 recesses; 42 recesses; 40a declivity face; The last oblique face of 42a; The last oblique face of 40b; 42b declivity face; 41 spring far-ends; 45 open spaces; 49 jiaos of ends; 5 fixation workpieces; 51 2 hundred 70 degree are nested with scope; 6 handles; 8 second jaws.

The specific embodiment

Below cooperate graphic act one preferred embodiment, the present invention explained as follows:

At first please referring to shown in Figure 1; This open end ratchet wrench 1 includes extension handle 6 and has the headstock 2 of opening 3; Headstock 2 can be pulled by sheathed fixation workpiece 5; The opening 3 of this headstock 2 is positioned at the front end of handle 6 longitudinal axis straight line y, and the mode of this sheathed fixation workpiece 5 is known as sometimes that side is sheathed to be pulled, and this alleged fixation workpiece 5 can be a hexagon bolt head or a hexagon nut actually.This spanner 1 is sheathed appropriate in fixation workpiece 5 sides; Even have only one or more sides of one or more promotion face contact fixation workpieces 5 in the promotion face of headstock 2 13,15,17; The user can impose suitable strength or torsion through

promotion face

13,15,17 in the side of fixation workpiece 5 at x-y axle horizontal pulling handle 6; Fixation workpiece 5 can be changeed around central point 19 (or CW central point) axle; Be that operating handle is pulled (the counterclockwise R direction of the preparation application of force makes zero) backward and pulled (the river page or leaf hour hands D direction of the application of force drives) forward, pull toward covering, just can operate fixation workpiece 5 and reach fastening purpose with this order.

Please referring to shown in Fig. 1, Fig. 2 and Fig. 3 A-Fig. 3 C; Wherein the structure of open end ratchet wrench 1 is following: headstock 2 comprises a pair of state type that links to each other with handle 6 first jaw 4 and second jaw 8; In this forming method; State type first jaw 4 is formed in one with state type second jaw 8 and handle 6, and first jaw 4 comprises 8 Flexible spanner sheets 14 that supporting the second promotion face 15 that is provided with and the 3rd promotion face 17 of the first promotion face, 13, the second jaws of one side pairs of openings 3; This first promotion face 13, the second promotion face 15 and the 3rd promotion face 17 can be plane (person as shown in Figure 1) or have recess 40,42 (shown in Fig. 2 and Fig. 3 A-Fig. 3 C).

Please referring again to Fig. 1; Wherein fixation workpiece 5 is nested with fully in spanner 1 opening 3; First, second and

third promotion face

13,15,17 can define the scope that one 270 degree (shown in the dotted line 51) is nested with fixation workpiece 5 at opening 3 places, wherein second, third promotion face 15, be formed with between 17 120 the degree angle end 31; This moment spanner 1 can with hexagon fixation workpiece 5 place normal place or with six degree as position of rotation, this mode that fixation workpiece 5 and each

promotion face

13,15,17 are nested with, the general person is called the hexagonal end and is nested with form; Be that the size that first,

second promotion face

13,15 defines is enough to and fixation workpiece 5 each engage sides; First,

second promotion face

13,15 further be provided with recess 40,42, cutting apart of making has 13a, cut surface under the last cut surface of 15b and 13b, the 15a; When handle 6 changed driving direction D over to, torsion promptly was transmitted through

last cut surface

13a, 15b and the 3rd promotion face 17 and gives fixation workpiece 5; When handle 6 changed ratchet rotation direction R over to, fixation workpiece 5 still kept inactive state, pulled torsion and then can be left by Flexible spanner sheet 14 through following

cut surface

13b, 15a.

Please referring to Fig. 2 and Fig. 3 A-Fig. 3 C; Wherein the first promotion face 13 is two

part cut surface

13a, 13b and the second promotion face 15 through cutting apart of being provided with that recess 40 makes and also is two

part cut surface

15a, 15b through be set cutting apart that recess 42 makes; Promptly first jaw 4 and Flexible spanner sheet 14 can rely on cut

surface

13a, 13b, 15a, the 15b that recess 40,42 is cut apart be formed with 30 degree position of rotation when normal place is nested with hexagon fixation workpiece 5; This first promotion face 13 is cut surface 13a, the 13b that comprise that recess 40 is cut apart, and recess 40 is to include upper and lower oblique face 40a, the 40b relative with angle end 31; Be that upper and lower oblique face 40a, the 40b of recess 40 can be connected with

cut surface

13a, 13b and be formed with the 120 degree angle interfaces that fixation workpiece 5 joins; Or also can use other angle in addition.Wherein the second promotion face 15 is two upper and lower cut surface 15a of part, 15b through be set cutting apart that recess 42 makes; Recess 42 is to include upper and lower oblique face 42a, the 42b that meets with angle end 31; Be that upper and lower oblique face 42a, the 42b of recess 42 can be connected with upper and

lower cut surface

15a, 15b and the 3rd promotion face 17 and be formed with the 120 degree angle interfaces that join with fixation workpiece 5, or also can use other angle in addition.When spanner 1 is nested with fixation workpiece 5 with normal place, and handle 6 applies torsion through

last cut surface

13a, 15b and 15 pairs of fixation workpieces 5 of the second promotion face when changing driving direction D over to; When spanner 1 is nested with fixation workpiece 5 with normal place; And handle 6 is when changing ratchet rotation direction R over to; It is static that fixation workpiece 5 still is, and can exert pressure to following

cut surface

13b, 15a, just can break away from first promotion face 13 of first jaw 4 and the second promotion face 15 of Flexible spanner sheet 14; And the 3rd promotion face 17 is arranged on overhanging member 28 inner faces in the face of opening 3.

Spanner 1 is nested with fixation workpiece 5 with 130 degree position of rotation, and handle 6 is when changing driving direction D over to, torsion promptly through declivity face 40a, go up oblique face 42a and be transferred into fixation workpiece 5; Spanner 1 is nested with fixation workpiece 5 with 30 degree position of rotation; And handle 6 is when changing ratchet rotation direction R over to; It is static that fixation workpiece 5 still is, and can exert pressure to declivity face 42b, just can break away from first promotion face 13 of first jaw 4 and the second promotion face 15 of Flexible spanner sheet 14; Please referring again to Fig. 2 and Fig. 3 A and B, wherein Flexible spanner sheet 14 slides on the keel 16 of second jaw 8; 18 of the arc-shaped outer surfaces of Flexible spanner sheet 14 are fitted the arc inner surface 27 on Flexible spanner sheet 14 and second jaw, 8 outer member 23; 18 of arc-shaped outer surfaces can and not break away from along 27 slips of arc inner surface; Part is executed in the work, and outer member 23 thickness of second jaw 8 can be identical with first jaw 4; Keel 16 arc inner surface 27 and 4 extensions of first jaw at second jaw 8 are for example by overhanging member 29 places; The thickness t of keel 16 approximately slightly 1/3rd of outer member 23 thickness W, and be positioned at the central spot of width W; 27 of arc inner surfaces are divided into two parts by keel 16, the width of each part all about slightly outer member 23 thickness W 1/3rd; Part is executed in the work, second jaw than first jaw 4 be greatly and radian bigger; Second jaw 8 also can be more outstanding than first jaw 4 by handle 6 places.

The assembling morphology mode of Flexible spanner sheet 14 can be placed on second jaw 8 it, and Flexible spanner sheet 14 can be arc or kidney shape and microscler; Flexible spanner sheet 14 packing one solid-state terminal 33 and one groove formula near-end 35 (shown in Fig. 3 B and the C), and its thickness q in fact the thickness W with second jaw 8 is identical; 35 of groove formula near-ends comprise by two of open space 45 separations pulls

sheet element

35a, 35b.

After assembling on second jaw 8 was appropriate, pull

sheet element

35a, 35b on the Flexible spanner sheet 14 promptly were positioned at keel 16 2 sides, and keel 16 are arranged in its open space 45; The arc inner surface 27 of the arc-shaped outer surface 18 of Flexible spanner sheet 14 and second jaw 8 all has identical radian measure, and is centered in the central point 39 (CMP39) of Flexible spanner sheet 14 jointly; This central point (CMP39) departs from the central point (shown in Figure 1) that is nested with fixation workpiece 5 (CW19); When Flexible spanner sheet 14 moved, its arc-shaped outer surface 18 still can keep fit-state along arc inner surface 27; Second jaw 8 can prevent that Flexible spanner sheet 14 is nested with and operates therebetween at fixation workpiece 5 through keel 16 and removed by first jaw, 4 places; CWP39 is departed from the action by CW19, and Flexible spanner sheet 14 moves towards handle 6 downwards; And during ratchet wrench rotates away from CW19.

Except that with the second promotion face 15 engages, Flexible spanner sheet 14 comprises one in addition near solid-state terminal 33 overhanging member 28, so that the second promotion face 15 is connected with the 3rd promotion face 17; The 3rd promotion face 17 is 120 degree angle modes with the y axle and stretches out towards opening 3; The length of overhanging member 28 can't make it excessively stretch into opening 3; The activity of Flexible spanner sheet 14 and overhanging member 28 can be nested with fixation workpiece 5 by side with spanner 1; Overhanging member 28 can make spanner 1 and fixation workpiece 5 fit fully with the angle of cut place of the 3rd promotion face 17 in addition.

Flexible spanner sheet 14 with

pull sheet element

35a, 35b is positioned at keel 16 both sides, places its perforation 37a, 37b with latch 10 again and is fixed on the Flexible spanner sheet 14, and is mobile the arc guide channel 12 of keel 16 in latch 10; Arc guide channel 12 has last arcwall face 12a, arc lower face 12b, upper and lower arcwall face 12a, 12b, all is positioned at arc inner surface 27 centerings of the arc-shaped outer surface 18 and second jaw 8 of CMP 19 central points and Flexible spanner sheet 14 jointly; This arc guide channel 12 is big than latch 10, thus can in upper and lower arcwall face 12a, 12b, move by near-end 12C terminad 12D, and do not touch any surface of arc guide channel 12; Flexible spanner sheet 14 can be through handling along with latch 10 moves and moves around CMP39.

All spaced-apart to confirm that central opening 3 can be nested with fixation workpiece 5 with all promotion faces of first jaw 4 and Flexible spanner sheet 14 with suitable distance; First jaw 4 and Flexible spanner sheet 14 can be nested with the opening 3 of fixation workpiece 5 when ratchet rotates, and remain unchanged; When being the ratchet rotation, spanner 1 need not withdraw from fixation workpiece 5, and the CW19 of the fixation workpiece 5 that can detour rotates.

Please referring to the spring among Fig. 4 24, helical spring 24 wherein is positioned on the spanner headstock 2 of handle 6 ends; The boring 26 that spring 24 far-ends 41 are arranged in spanner headstock 2 is booked, and fixing with stopper 32; The other end of spring 24 engages with latch 10, and pushes Flexible spanner sheet 14 to opening 3 with the F power on the latch 10; Spring 24 stretches into arc guide channel 12 and pulls that the latch 10 in the open space 45 engages between sheet element 35a, the 35b (shown in Fig. 3 C) with being exposed to; Pull

sheet element

35a, 35b can set size, make its length can cover arc guide channel 12 and break away to prevent spring 24 and latch 10.

When Flexible spanner sheet 14 suffered external force (non-spanner 1 original application of force), spring force F is pushed into arc guide channel 12 terminal 12D places with latch 10 to be stopped, spanner 1 promptly accomplish the locking and not with fixation workpiece 5 fits; Fixation workpiece 5 is between first jaw 4 and Flexible spanner sheet 14 time, and latch 10 is promptly pushed away arc guide channel 12 terminal 12D; Part is executed in the work, and the characteristic of the size of arc guide channel 12 and spring 24 such as the elasticity tension coefficient, all during operation fixation workpiece 5, be chosen, and latch 10 reality does not contact with face 12a, 12b, 12C, 12D with all ends of arc guide channel 12; Be sent to first jaw 4, second jaw 8 because of the actual torsion that moves or rotational fixation workpiece 5 is produced is intact through latch 10; Latch 10 is in order to fixing Flexible spanner sheet 14 and prevent that its headstock 2 by spanner 1 from dropping; In fact all application of forces and torsion all transmit through the arc-shaped outer surface 18 of Flexible spanner sheet 14 and the arc inner surface 27 of second jaw 8.

Spanner 1 can be nested with by the side of fixation workpiece 5, originally an end of fixation workpiece 5 have one than headstock 2 openings 3 (P) for big width S; But user's application of force props up spring force F with Flexible spanner sheet 14 and pushes fixation workpiece 5 to opening 3 forward; Flexible spanner sheet 14 and latch 10 CM that can detour for example

P39 pushes away downwards to be nested with fixation workpiece 5 and gets into opening 3 spaces; Treat that spring 24 provides tension force to prop up latch 10, Flexible spanner sheet 14 answer lock-out states just can be caught appropriate fixation workpiece 5 has been installed.

Please referring to Fig. 5 and Fig. 6, what wherein show is that spanner 1 drives and the situation of ratchet when rotating; The user can continue along driving direction D (clockwise direction, shown in Figure 5) toward covering pulling handle 6 and the mode drive fixing workpiece 5 that spanner 1 is not withdrawed from by fixation workpiece 5 along ratchet rotation direction R (counterclockwise, shown in Figure 6); When driving direction D pulled, fixation workpiece 5 was inactive state Flexible spanner sheet 14 and then slides towards spanner handle 6.

Please referring again to Fig. 5, wherein fixation workpiece 5 is positioned at spanner 1 opening 3; The user is along driving direction D (clockwise direction) when pulling spanner 1, and state type first jaw 4, second jaw 8 are accepted the operated torsion of user and rotated along driving direction D; Second jaw 8 is accepted the operated torsion of user and is rotated along driving direction D; 4 of first jaws directly are passed to torsion on the fixation workpiece 5 through the side of cut surface 13a on it and fixation workpiece 5, to pull workpiece along driving direction D; 8 arc-shaped outer surfaces 18 that torsion is passed to Flexible spanner sheet 14 of pulling of second jaw on first jaw, 4 opposites with arc inner surface 27; 17 in the last cut surface 15b of Flexible spanner sheet 14 and the 3rd promotion face are passed to fixation workpiece 5 with torsion, with along driving direction D switching fixation workpiece 5; Be that the switching spanner is that foot makes Flexible spanner sheet 14 move along driving direction D rightabout; This one urges action then can the applying of the arc inner surface 27 of the arc-shaped outer surface 18 and second jaw 8 be avoided; Flexible spanner sheet 14 still is lock-out state and first jaw 4, second jaw 8 is inactive state; Torsion from first jaw 4 and Flexible spanner sheet 14 is then pulled workpiece along driving direction D.

Please referring again to Fig. 3 and shown in Figure 5; Be nested with at ten two angle ends that fixation workpiece 5 is 30 degree rotation status in the spanner 1 of form, the last oblique face 42a of the declivity face 40a of the first promotion face, 13 recesses 40 that its torsion must be through first jaw 4 and the recess 42 of Flexible spanner sheet 14 second promotion faces 15 is sent to fixation workpiece 5.

Please referring to Fig. 6, wherein spanner 1 is along ratchet rotation direction R (counterclockwise) switching; Each side surface of fixation workpiece 5 is the application of force on the following cut surface 15a of Flexible spanner sheet 14; This power can be pushed Flexible spanner sheet 14 to spring 24 (as shown in Figure 4); Latch 10 slides towards arc guide channel 12 near-end 12C downwards, and 14 arc inner surfaces 27 to lower edge second jaw 8 of Flexible spanner sheet slide; Opening 3 width that state type first jaw 4 and Flexible spanner sheet are 14 strengthen, and fixation workpiece 5 is done the ratchet rotation so that spanner 1 can detour.

The spanner of ten two angle end forms and fixation workpiece 5 are 30 degree position of rotation, and spanner 1 is when the ratchet turned position, and the declivity face 42b of the recess 42 of fixation workpiece 5 each side surface through Flexible spanner sheet 14 second promotion faces 15 is to Flexible spanner sheet 14 application of forces.

Handle 6 is earlier along ratchet rotation direction R switching, and 10 of latches pass through arc-shaped outer surface 18 slips of the arc inner surface 27 of arc guide channel 12 edges second jaw 8 towards near-end 12C and Flexible spanner sheet 14; Flexible spanner sheet 14 is moved to released state by lock-out state (shown in Figure 5); Therefore handle 6 is when ratchet rotation direction R rotate, and 14 of Flexible spanner sheets are done the arcuation slip along state type first jaw 4, second jaw 8; The arcuation slip of Flexible spanner sheet 14 then is limited by latch 10 and self arc-shaped outer surface 18 moves on the arc inner surface 27 of second jaw 8.

The position of CMP39 and arc guide channel 12 and arc-shaped outer surface 18 are all selected with the direction of arc inner surface 27, so that Flexible spanner sheet 14 can be done downwards and the action of outwards moving fixation workpiece 5; Spanner 1 fixation workpiece 5 that can when ratchet rotates, detour only still keeps enough spaces, in order to avoid fixation workpiece 5 hexagon angle ends hit first,

second promotion face

13,15; Second and

third promotion face

15,17 of Flexible spanner sheet 14 and the first promotion face 13 of first jaw 4 then slide at fixation workpiece 5 each side surface, make fixation workpiece 5 be inactive state.

Be nested with the spanner of form at 6 angle ends shown in Figure 1, have 60 degree must lean on detour one jiao of end 49 of hexagon fixation workpiece 5 of first jaw 4 and Flexible spanner sheet 14 to accomplish in the handle 6 switchings action approximately; Because fixation workpiece 5 each angle end all get into adjoining angle end 31 through the straight second promotion face 15 again, the spring force that 24 pairs of Flexible spanner sheets 14 of spring are applied innervates and pulls sheet 14 and be returned to position shown in Figure 5; Other illustrated ten two angle end form spanners, each angle end of fixation workpiece 5 move into adjoining angle ends 31 and or Flexible spanner sheet 14 before only must do 30 degree rotations and get final product.

Drive D and ratchet rotation direction R and can make change, so in vertical view, first jaw 4 is positioned at fixation workpiece 5 right sides through the mode of on the y axle, handle 6 being rotated 180 degree; In this mode, driving direction D counterclockwise and ratchet rotation direction R is a clockwise direction.

But manufacturing of assembly one and assembling in the spanner 1; The material that is applicable to spanner 1 assembly comprises tool steel, hardened steel or other material; State type first jaw 4, second jaw 8 and Flexible spanner sheet 14 in the various assembly all can be identical or different material; Spanner 1 can or dwindle according to standard and the amplification of metric system formula open-end wrench specification; Part is executed in the work, and spanner state type first jaw 4, second jaw 8 can be accepted the Flexible spanner sheet 14 of different size to cooperate the opening 3 of different size; The fixation workpiece 5 to cooperate special size and shape selected and assembled to the Flexible spanner sheet 14 of appropriate size can for use with wrench jaw, and need not use different spanners in addition.

The embodiment that still can comprise other in the following patent claim:

Can have more or the microscler of less assembly such as, spanner pulls; Flexible spanner sheet and state type jaw can be other shape; Arc guide channel and latch can oppositely be installed, and so that latch is set on the keel, the arc guide channel then is set in Flexible spanner sheet proximal end.

Such as, the spanner handle need not coexist with the jaw being aligned or with it on plane; Can keep a sharp angles mode to depart from jaw with the jaw plane or away from the jaw plane such as, handle; Spanner handle and jaw can be processed and engaged with latch by different parts; The adjustment latch can with handle with regard to spanner headstock plane upwards or the below articulate; The spanner handle can be arc or other shapes.

Can attach a shortening handle of going into the square opening down to settle torque spanner such as, spanner, for example prize the pin design.

Such as, spanner can attach a spanner headstock at spanner handle two ends; Each spanner headstock can attach first and second jaw and and be installed in the Flexible spanner sheet on second jaw; First jaw and Flexible spanner sheet then comprise setting accepts the various surface that fixation workpiece is used; The spanner headstock of spanner handle one end can comprise a different size or configured openings, and this opening is included in the spanner head end of the spanner handle other end, or two different openings can be accepted different size or shaped aperture.

Such as, different with helical spring is, the spring of flat spring or other types can engage with latch, and the moving of support control Flexible spanner sheet; Spring can otherwise be fixed on spanner handle or the spanner headstock.

More than explanation is just illustrative for the purpose of the present invention; And nonrestrictive, those of ordinary skills understand, under the situation of spirit that does not break away from claim and limited and scope; Can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.

Claims

1. open end ratchet wrench is characterized in that: comprise that a setting accepts the spanner headstock of fixation workpiece opening, this spanner headstock comprises one first jaw, and this first jaw comprises first a promotion face of fitting with the fixation workpiece surface at least; Second jaw, it comprises an arc inner surface and the Flexible spanner sheet that is installed on second jaw in the face of opening, the Flexible spanner sheet can move with second jaw; This Flexible spanner sheet comprises one second promotion face at least, and the Flexible spanner sheet also comprises an arc-shaped outer surface of fitting with the set arc inner surface of second jaw, and this Flexible spanner sheet and the edge second jaw arc inner surface slide.

2. according to the said open end ratchet wrench of claim 1, it is characterized in that: the opening of spanner headstock, part is besieged, and an inlet is arranged to accept fixation workpiece between first jaw and Flexible spanner sheet.

3. according to the said open end ratchet wrench of claim 1, it is characterized in that: the radian of the arc inner surface of second jaw and the arc-shaped outer surface of Flexible spanner sheet is identical.

4. according to the said open end ratchet wrench of claim 1, it is characterized in that: second jaw comprises one in addition by the support keel of arc inner surface to the opening stretching, extension.

5. according to the said open end ratchet wrench of claim 4, it is characterized in that: the Flexible spanner sheet comprises a near-end and an end, and the near-end of Flexible spanner sheet merges in end after being separated by open space.

6. according to the said open end ratchet wrench of claim 5, it is characterized in that: the support keel of second jaw is in two of Flexible spanner sheet is pulled the open space between the sheet element.

7. according to the said open end ratchet wrench of claim 6; It is characterized in that: support keel comprises an arc guide channel; And the spanner headstock comprises that one should be fixed on Flexible spanner sheet two and pulls the latch on the sheet element, passes the arc guide channel and is assembled on second jaw with this latch.

8. according to the said open end ratchet wrench of claim 7, it is characterized in that: the length of arc guide channel is enough to make latch in the arc guide channel, to move.

9. said according to Claim 8 open end ratchet wrench is characterized in that: the direction of arc guide channel can be held latch and move, and the arc-shaped outer surface that makes the Flexible spanner sheet slides and do not contact at the arc inner surface of second jaw.

10. said according to Claim 8 open end ratchet wrench is characterized in that: latch moves in the arc guide channel and does not touch support keel.

11. according to the said open end ratchet wrench of claim 6, it is characterized in that: the sheet element of pulling of Flexible spanner sheet comprises a groove formula near-end, and the spanner headstock comprises that one should be fixed on support keel and pass the latch of pulling sheet element groove formula near-end.

12. according to the said open end ratchet wrench of claim 11, it is characterized in that: the groove size of pulling sheet element of Flexible spanner sheet is bigger than latch size.

13. according to the said open end ratchet wrench of claim 1, it is characterized in that: the spanner headstock comprises that more one is attached on the spanner headstock and the spring between the Flexible spanner sheet.

14. according to the said open end ratchet wrench of claim 1, it is characterized in that: first and second promotion face is the plane.

15. according to the said open end ratchet wrench of claim 14, it is characterized in that: first jaw and Flexible spanner sheet are set out 6 angle ends and are nested with form.

16. according to the said open end ratchet wrench of claim 1, it is characterized in that: first and second symmetrical centre that promotes face is equipped with recess.

17. according to the said open end ratchet wrench of claim 16, it is characterized in that: first jaw and Flexible spanner sheet are set out ten two angle ends and are nested with form.

18., it is characterized in that: first jaw and the second jaw state type according to the said open end ratchet wrench of claim 1.

19. a method of making open end ratchet wrench is characterized in that, comprising:

20. the method according to the said manufacturing open end ratchet wrench of claim 19 is characterized in that: the Flexible spanner sheet is installed is more comprised with spring on the spanner headstock and Flexible spanner chip bonding.

21. the method according to the said manufacturing open end ratchet wrench of claim 19 is characterized in that: the Flexible spanner sheet is installed is more comprised and can a latch be fixed on the Flexible spanner sheet, and pass the arc guide channel of second jaw, latch then moves in the arc guide channel.

22. an open end ratchet wrench device that comprises following assembly is characterized in that:

23. an open end ratchet wrench that comprises following assembly is characterized in that:

24. an open end ratchet wrench that comprises following assembly is characterized in that: