CN101450469A

CN101450469A - Ratchet wrench of adjustable clamping jaw and ratchet handle

Info

Publication number: CN101450469A
Application number: CNA2007101952346A
Authority: CN
Inventors: 蔡明宗
Original assignee: Stanley Chiro International Ltd
Current assignee: Stanley Chiro International Ltd
Priority date: 2007-12-04
Filing date: 2007-12-04
Publication date: 2009-06-10
Anticipated expiration: 2027-12-04
Also published as: CN101450469B

Abstract

The invention discloses a ratchet wrench with an adjustable clamping jaw and a ratchet-driven handle. The ratchet wrench comprises a wrench body, a fluted disc unit, a handle unit, a movable clamping jaw group, a direction control unit and a clamping jaw adjusting unit, wherein the fluted disc unit is provided with a base and a fluted disc. The movable clamping jaw group has a plurality of clamping jaw pieces arranged on the base. The rotary handle unit is meshed with and rotates the fluted disc to drive the clamping jaw pieces to rotate. The direction control unit has two groups of clamping pieces and a control ring. The control ring can be rotated to allow one group of clamping pieces to clamp the fluted disc to control the rotation direction of the clamping jaw pieces. The clamping jaw adjusting unit has an adjusting ring which drives the clamping jaw pieces to move to change the clamping size according to the size of a screw cap, thereby achieving convenient use effect.

Description

The ratchet spanner of adjustable jaw and spine move handle

Technical field

The present invention relates to a kind of ratchet spanner, but particularly relates to a kind of original place switching nut and have the adjustable jaw of adjustment size effect and the ratchet spanner of spine move handle.

Background technology

Referring to shown in Figure 1, general ratchet spanner 10 mainly has a wrench body 11, a ring 12 that is set in wrench body 11 front end places, a clipping block 13 that is arranged on wrench body 11 inside, axle is located at the toggle 14 on the wrench body 11, and bullet is located at the protruding element 15 that supports on the toggle 14, be provided with the plum blossom perforation 121 that a circle can supply nut (figure does not show) fit in this ring 12 week, and periphery is provided with most ratchets 122, these clipping block 13 front side edge places are provided with the one section rodent part 131 that can do engagement to ring 12 ratchets 122, the back side edge place is concaved with one can be subjected to the protruding recess 132 that supports element 15 pushing and pressing, about dial to change this toggle 14 and can make the protruding 15 pairs of clipping blocks 13 of element that support push against, clipping block 13 can be done monolateral engagement to ring 12 peripheries whereby, the user can just can rotating screw cap with a direction switching wrench body 11, will dally with other direction switching wrench body 11, so can allow wrench body 11 successfully continue to carry out the action of switching repeatedly in the cycle original place.

Though above-mentioned ratchet spanner 10 can be reached the continual effect of continuous switching nut really, but because the plum blossom perforation 121 of ratchet spanner 10 is the dimensions of fixing, if when running into the nut of wanting the bigger or reduced size of switching, this ratchet spanner 10 just can't be suitable for, also not convenient in the use, in addition, ratchet spanner 10 is at turn-off or when screwing nut, must allow wrench body 11 that certain rotary space is arranged, just be enough to allow 12 pairs of nuts of ring carry out switching, if but work on the spot occasion space is narrow and small, when limiting the switching amplitude of wrench body 11, just this moment, ratchet spanner 10 can't rotate nut.

Summary of the invention

But the object of the invention be to provide a kind of original place switching nut again with the adjustable size effect can

Transfer the ratchet spanner of jaw and spine move handle.

The invention provides the ratchet spanner of a kind of adjustable jaw and spine move handle, include a wrench body, a fluted disc seat unit, a handle unit, a movable set of jaws, a direction control module and a jaw adjustment unit, wherein: this wrench body has a head end and a holding rod that is extended back by head end, the inner saturating sky of this head end is concaved with a through hole, is positioned at the middle place of through-hole wall and is provided with the ring tooth one; This fluted disc seat unit has a pedestal that is set in through hole inside and one and just is arranged on the pedestal and the mutually adjoining fluted disc of ring tooth; This handle unit have an axle be located at the holding rod rear end and stretch to lever in the through hole and one connect and be located at the driving gear that lever front end place can drive the fluted disc rotation; This movable set of jaws has most the jaw members that are slidingly installed on the pedestal, and each jaw member is provided with a guide end at upper end, is provided with a bare terminal end that stretches out the wrench body outside at lower end; This direction control module has about two groups axle in pairs and is located at the join moving part of interlock and one of elastic propping piece, that clamping piece on the pedestal, two groups can make pushing tow to two clamping pieces respectively and two elastic propping pieces and is set in the control loop that can drive the moving part left and right sidesing shifting on the through hole; This jaw adjustment unit has an adjustment ring that is set on the through hole, and this adjustment ring inner side end place is concaved with most helicla flutes, and each helicla flute can be inserted in for the guide end of jaw member, and ring is adjusted in rotation can make jaw member move radially along pedestal.

Effect of the present invention is to utilize the handle unit to drive fluted disc with driving gear to rotate, make wrench body under not switching of original place state, can reach the effect that turns to nut automatically, on the other hand, utilize moving each jaw member of adjustment endless belt radially to move, can adjust to reach the clamping effect in response to the nut size whereby.

Description of drawings

Fig. 1 is the assembled sectional view of general ratchet spanner;

Fig. 2 is the combination stereogram of ratchet spanner one preferred embodiment of adjustable jaw of the present invention and spine move handle;

Fig. 3 is the exploded perspective view of above-mentioned preferred embodiment, illustrates that the present invention has a wrench body, a fluted disc seat unit, a handle unit, a movable set of jaws, a direction control module and a jaw adjustment unit;

Fig. 4 is the assembled sectional view of above-mentioned preferred embodiment;

Fig. 5 is the cutaway view of Fig. 4 along the V-V line, illustrates that this direction control module has two groups of clamping pieces and two groups of elastic propping pieces, and this movable set of jaws has three jaw members, and the assembled condition of clamping piece, elastic propping piece and jaw member;

Fig. 6 is the cutaway view of Fig. 4 along the VI-VI line, illustrates that this direction control module has a control loop and a moving part, connects the assembled condition that is located on the elastic propping piece respectively;

Fig. 7 is the cutaway view of Fig. 4 along the VII-VII line, illustrates that this jaw adjustment unit has one and adjusts ring, adjusts and is concaved with three helicla flutes that can supply the jaw member guiding to be inserted on the ring;

Fig. 8 is the action diagram of above-mentioned preferred embodiment, illustrates that rotating control loop can see through the situation that the revolution of moving part drive elastic propping piece is moved;

Fig. 9 is the action diagram of above-mentioned preferred embodiment, illustrates that two groups of clamping pieces are subjected to that elastic propping piece suppresses and encircles the situation of tooth clip with wrench body inside;

Figure 10 is the action diagram of above-mentioned preferred embodiment, illustrates that rotate adjusting ring can drive jaw member and radially make the situation that moves; And

Figure 11 is the action diagram of above-mentioned preferred embodiment, and illustrating that jaw member moves radially can be to the situation of the nut clamping switching of different size.

The specific embodiment

Aforementioned and other technology contents, characteristics and effect about the present invention, the present invention is described in detail below in conjunction with accompanying drawing and an embodiment, can clearly present.

Referring to Fig. 2, Fig. 3 and shown in Figure 4, the ratchet spanner of adjustable jaw of the present invention and spine move handle is in a preferred embodiment, mainly include a wrench body 20, fluted disc seat unit 30, handle unit 40, movable set of jaws 50, a direction control module 60 and a jaw adjustment unit 70, then, again the composition member of above-mentioned each unit and assembling kenel are specified in after.

This wrench body 20 has a circular head end 21 and a holding rod 22 that is extended back by head end 21, the saturating along the vertical direction sky in these head end 21 inside is concaved with a through hole 211, the place convexes with class's flange 212 in the middle of being positioned at through hole 211, these class's flange 212 inwall places are concaved with ring tooth 213 one, and the place is equipped with a mesopore 221 that directly passes to thoroughly in the ring tooth 213 in the middle of this holding rod 22.

This fluted disc seat unit 30 has one and is set in the class's flange 212 tops places last fluted disc 31 mutually adjoining with encircling tooth 213, one is set in the class's flange 212 belows places lower tooth disk 32 mutually adjoining with encircling tooth 213, a top base 33 that is set in the through hole 211 and is seated in fluted disc 31 end face places, and one be set in the through hole 211 and sealing covers the bottom base 34 at head end 21 end face places, on,

lower tooth disk

31,32 profile is to be loop shaped, its end all is concaved with crown gear 311 one, 321, on,

lower tooth disk

31,32 crown gear 311, the 321st, relative up and down shape, go up in addition,

lower tooth disk

31,32 inwall place all is concaved with internal gear 312 one, 322, internal gear 312,322 next-door neighbour's closings are on ring tooth 213, and be to make identical tooth pitch just with ring tooth 213, top base 33 is in the form of annular discs, place is equipped with a heart hole 331 in the middle of it, being that the center five equilibrium is spaced apart with heart hole 331 is provided with three long slide openings 332, be equipped with two pin-and-holes 333 near 331 places, heart hole, offer two arc guiding holes 334 in addition near pin-and-hole 333 places, bottom base 34 also is to be disc-shape, place is equipped with a screw 341 in the middle of it, being that the center five equilibrium is spaced apart with screw 341 is provided with three and is long rectangular-shaped chute 342, be equipped with two pin-and-holes 343 near screw 341 places, be equipped with two axis holes 344 near pin-and-hole 343 places.

This handle unit 40 have lever 41, one that an axle is located at holding rod 22 rear end connect be located on the lever 41 and stretch into axostylus axostyle 42 in holding rod 22 mesopores 221 and one connect and be located at the driving gear 43 that axostylus axostyle 42 front end places are meshed with the crown gear 311,321 of upper and lower

fluted disc

31,32, rotate and can drive driving gear 43 runnings behind this lever 41, driving gear 43 bridle joint again drives upper and lower

fluted disc

31,32 and rotates.

This movable set of jaws 50 has three jaw members 51 that are slidingly installed on the upper and

lower pedestal

33,34, the upper end of each jaw member 51 is provided with a cylindrical guide end 511, this guide end 511 can upwards pass from the slide opening 332 of top base 33, the lower end of jaw member 51 is provided with a bare terminal end 512 that is long column shape, this bare terminal end 512 can stretch out wrench body 20 outsides from the chute 342 of bottom base 34, in order to a nut 100 is carried out clamping.

This direction control module 60 has paired clamping piece 61 that is located at bottom base 34 dual-side places about two groups, sell in pairs about two groups and be located at the elastic propping pieces of locating in the middle of the bottom base 34 62, one be arranged on top base 33 tops places can be to the join moving part 63 of interlock of two elastic propping pieces 62, and one be set in the control loop 64 that head end 21 tops places can drive moving part 63 left and right sidesing shiftings, simultaneously referring to shown in Figure 5, each group clamping piece 61 all includes a rotating shaft 611, a packing ring 612, a thick tooth piece 613 and a thin tooth piece 614, this rotating shaft 611 is that axle is located in the axis hole 344 of bottom base 34, packing ring 612 is set in the rotating shaft 611, thick in order to locate, thin two tooth pieces 613,614 height and position, thick, thin tooth piece 613,614 jackshafts are located in the rotating shaft 611 can swing shape, the height and position of thick tooth piece 613 just is meshed with ring tooth 213, the height and position of thin tooth piece 614 just can be meshed with last (descending) fluted disc 31 (32), two groups of elastic propping pieces 62 all have a push pedal 621, the pivot pin 622 of a pin joint in push pedal 621, and two bullets are located at the pallet 623 of push pedal 621 edges, these pivot pin 622 two ends are plugged on respectively,

bottom base

33,34 pin-and-hole 333, in 343, can make that push pedal 621 is that spinning movement is done at the center with pivot pin 622, certainly the dealer also can manufacture pivot pin 622 and push pedal 621 in one-body molded mode, push pedal 621 upper edges convex with a pilot pin 6211, this pilot pin 6211 can be inserted in the arc guiding hole 334 of top base 33, make push pedal 621 can do the circular arc turn swimmingly, two pallets 623 are installed in push pedal 621 edges, can be distinctly to thick, thin tooth piece 613,614 madial walls are made the elasticity pushing tow, can making wherein whereby, one group of clamping piece 61 is fastened on the ring tooth 213, to reach the action of unidirectional rotation, simultaneously referring to shown in Figure 6, this moving part 63 is the bodies of rod that slightly are the semicircle arcuation, stretch and be provided with two fixture block flanges 631 at its place, two ends, outside, its inside is equipped with two trepannings 632 near fixture block flange 631 positions, trepanning 632 can be inserted in for the pilot pin 6211 of push pedal 621, whereby after moving part 63 is driven to rotate, also can drive 621 pairs of clamping pieces 61 of push pedal and make pushing tow, this control loop 64 is middle ring bodies that are permeable type, its periphery is provided with one section and is beneficial to the embossed section 641 that hand is dialled commentaries on classics, its inwall place is concaved with several draw-in grooves 642, draw-in groove 642 just can be inserted in for fixture block flange 631 interlockings of moving part 63, whereby when rotating control loop 64, can drive moving part 63 and do the single-revolution action.

This jaw adjustment unit 70 has an adjustment ring 71 that is set in place, head end 21 tops, and locking screws 72 that are located in adjustment ring 71 middle places, this adjustment ring 71 is disk bodies of rounded shape, its periphery is provided with one section and is beneficial to the embossed section 711 that hand is dialled commentaries on classics, place is provided with a perforation 712 in the middle of it, it is that most the helicla flutes 713 that spiral is provided with are made at the center that its inner side end place is concaved with this perforation 712, simultaneously referring to shown in Figure 7, each helicla flute 713 can be inserted in for the guide end 511 of jaw member 51, rotating adjustment ring 71 can make jaw member 51 move radially along bottom base 34 chutes 342, this locking screw 72 is penetrated downwards by perforation 712, behind the heart hole 331 by top base 33, be screwed into again in the screw 341 of bottom base 34, can make 71 lockings of adjustment ring fix on the head end 21 whereby.

More than be adjustable jaw of the present invention and each the member shape of ratchet spanner of spine move handle and the general introduction of interblock space kenel, then, effect statement as back that action of the present invention and expection can be reached be described again:

Again referring to Fig. 4, shown in Figure 5, when the present invention will carry out the original place switching to a nut 100, at first, after 51 pairs of nut 100 clampings of jaw member are tightened up, the user is as long as rotate lever 41, lever 41 sees through axostylus axostyle 42 can drive driving gear 43 rotations, driving gear 43 is with last,

lower tooth disk

31,32 phase bridle joints, make,

lower tooth disk

31,32 are driven to rotate, because it is last,

lower tooth disk

31,32 with clamping piece 61 bridle joint mutually, so bottom base 34 can be driven and be ordered about three groups of jaw member 51 turns, so, wrench body 20 is under actionless state, and rotation handle unit 40 just can drive 51 pairs of nuts 100 of jaw member to be changeed tight or unscrew action.

Referring to Fig. 8, shown in Figure 9, when the present invention will adjust along counterclockwise clip direction, the user can turn round the control loop 64 of direction control module 60, when control loop 64 rotates with a direction, seeing through moving part 63 can move by drive two elastic propping pieces 62 in the same direction, make the clamping piece 61 of this side be subjected to that elastic propping piece 62 suppresses and with ring tooth 213 and go up (descend) fluted disc 31 (32) and do to mesh and contact, wrench body 20 can only be along the switching of single direction clip, action in the other direction then causes idle running, reaches the effect of ratchet one-way switching whereby.

Referring to Figure 10, shown in Figure 11, the present invention can adjust the distance of this jaw member 51 in response to the nut size, the user can rotate the adjustment ring 71 of jaw adjustment unit 70, adjusting ring 71 utilizes the guide end 511 of helicla flute 713 each jaw member 51 of guiding to move, jaw member 51 is moved radially along the chute 342 of bottom base 34, whereby, this jaw member 51 just can be adjusted to the size of desiring clamping, and another nut 200 is carried out clamping.In sum, the ratchet spanner of adjustable jaw of the present invention and spine move handle mainly is in order to solve the problem that general ratchet spanner 10 uses, technological means of the present invention mainly is by the lever 41 that rotates handle unit 40, utilize driving gear 43 to drive two fluted discs 31 up and down, 32 runnings, just but start jaw member 51 turns nut 100 whereby, reach the effect of original place switching nut 100, therefore the present invention quite is fit to be used in the narrow and small workplace, space, come again, direction control module 60 of the present invention can be finished the switching of clip direction easily, the user is as long as turn control loop 64, just can drive inner clamping piece 61 contacts with 213 engagements of ring tooth, just can control the direction of switching nut 100 whereby easily, at last, the size of the visual switching nut 100 of the present invention, the distance of jaw member 51 is done one to be changed, as long as the user exchanges the domain 71 and rotates, jaw member 51 just can radially move along bottom base 34, the distance of 51 of jaw members can change at once whereby, tighten up and can carry out clamping, so the present invention quite is fit to the clamping work of multiple different nuts 100 nut 100 of different size size.

Claims

1. the ratchet spanner of adjustable jaw and spine move handle is characterized in that:

A wrench body has a head end and a holding rod that is extended back by head end, and the inner saturating sky of this head end is concaved with a through hole, is positioned at the middle place of through-hole wall and is provided with the ring tooth one;

A fluted disc seat unit has a pedestal that is set in through hole inside and one and is arranged on the pedestal and the mutually adjoining fluted disc of ring tooth;

A handle unit has an axle and is located at the holding rod rear end and stretches to lever and in the through hole and connect and be located at the driving gear that lever front end place drives the fluted disc rotation;

A movable set of jaws has most the jaw members that are slidingly installed on the pedestal, and each jaw member is provided with a guide end at upper end, is provided with a bare terminal end that stretches out the wrench body outside at lower end;

A direction control module has about two groups axle in pairs and is located at elastic propping piece, one that clamping piece on the pedestal, two groups make pushing tow to clamping piece respectively and elastic propping piece join moving part and a control loop that is set in drive moving part left and right sidesing shifting on the through hole of interlock; And

A jaw adjustment unit has an adjustment ring that is set on the through hole, and this adjustment ring inner side end place is concaved with most and offers the helicla flute that the jaw member guide end is inserted in.

2. the ratchet spanner of adjustable jaw as claimed in claim 1 and spine move handle is characterized in that: this wrench body holding rod inside is equipped with one and offers the axis hole that the handle unit stretches into.

3. the ratchet spanner of adjustable jaw as claimed in claim 1 and spine move handle is characterized in that: this fluted disc seat unit has up and down two pedestals and two and is linked in the ring tooth fluted disc at two places up and down respectively.

4. the ratchet spanner of adjustable jaw as claimed in claim 1 and spine move handle is characterized in that: this fluted disc end is provided with the crown gear that is meshed with driving gear together, locates to be provided with the internal gear that is meshed with clamping piece together in the fluted disc week.

5. the ratchet spanner of adjustable jaw as claimed in claim 1 and spine move handle is characterized in that: this pedestal radially offers most and offers the chute that jaw member stretches in the pre-position.

6. the ratchet spanner of adjustable jaw as claimed in claim 1 and spine move handle is characterized in that: this clamping piece has an axle and is located at rotating shaft on the pedestal, one and is set in packing ring in the rotating shaft, axle and is located in the rotating shaft thick tooth piece and an axle of doing engagement with the ring tooth and is located at the thin tooth piece of doing engagement in the rotating shaft with fluted disc.

7. the ratchet spanner of adjustable jaw as claimed in claim 6 and spine move handle is characterized in that: this elastic propping piece has an axle and is located at pivot pin on the pedestal, axle and is located at push pedal on the pivot pin and two bullets and is located at push pedal edge and distinctly thick, thin tooth piece is made butted pallet.

8. the ratchet spanner of adjustable jaw as claimed in claim 1 and spine move handle, it is characterized in that: this moving part outside is provided with one and makes the fixture block flange of interlocking interlock with control loop, and the inner pre-position of moving part is equipped with one and offers the trepanning that elastic propping piece is made the socket interlock.