TW201542321A - Ratchet wrench capable of dual-use and inching - Google Patents

Abstract

A dual-use ratchet wrench for inching comprises a tool head unit, a pull unit, a transmission unit, the first catch pawl unit and the second catch pawl unit. The tool head unit includes a main body and a driving member pivotally attached on the main body. The pull unit is pivoted to the tool head unit and has a detent ramp. The transmission unit includes a first ratchet gear and a second ratchet gear. With the first and the second catch pawl units and the aforementioned configurations, the ratchet wrench can be unidirectionally driven with the inching operation.

Description

Dual-use and inching ratchet wrench

The present invention relates to a hand tool, and more particularly to a multi-purpose and dual-use and inching ratchet wrench.

Referring to FIG. 1 , a new type of patent certificate No. M340149, a flexible wrench tool for corner output, includes a corner joint 10, a socket end 11 connected to the corner joint 10, and a a flexible component 12 extending outwardly from the socket end 11 , a connecting portion 13 connected to the other end of the flexible component 12 , and a driving source 14 disposed on the connecting portion A flexible cable (not shown) connected to the corner joint 10 and the driving source 14 is respectively rotated to rotate the driving cable 14 to drive the corner joint 10 to rotate. The wrench tool can be used in a small space because the flexible component 12 can be bent.

However, the wrench tool rotates the flexible cable to drive the corner joint 10 to rotate, so that the torque is small, and at the same time, the rotation of the driving source 14 can rotate the corner joint 10, which is laborious.

Therefore, the object of the present invention is to provide a workability A ratchet wrench that can be used as a space and adjusts the operating mode.

Thus, the present invention is a dual-purpose and intensive ratchet wrench comprising a tool head unit, a trigger unit, a transmission unit, a first pawl unit and a second pawl unit. The tool head unit has a main body and a driving member rotatably mounted on the main body, the driving member has a driving portion and a driving ratchet wound around the outer peripheral surface, and the pulling unit is rotatably pivotally connected to the tool a main body of the head unit and having a tilting slope facing the driving member, the transmission unit having a first ratchet gear adjacent to the tilting ramp and having a shaft disposed on the main body and engaging the first ratchet gear a second ratchet gear disposed between the driving member and the shaft, the first claw unit is mounted on the pulling unit, and has a first spring and a first spring force acting on the first a first latching member that maintains a meshing tendency, the second pawl unit is mounted to the tool head unit, and has a second spring and a driving ratchet that is constantly biased toward the driving member by the second spring elastic force a second latch member that maintains a tendency to engage the second ratchet gear.

The effect of the present invention is that the first claw unit is disposed between the pulling unit and the first ratchet gear, and the driving ratchet and the second ratchet gear disposed on the driving member by using the second claw unit Between the two, not only can the operation purpose of the one-way drive be achieved, but the operation mode of the inching can be adjusted in accordance with the operation space.

10‧‧‧Tool head unit

11‧‧‧ Subject

12‧‧‧ Drives

121‧‧‧ Drive Department

122‧‧‧ drive ratchet

123‧‧‧Flange

13‧‧‧Outer board

131‧‧‧Perforation

132‧‧‧Extension

14‧‧‧ spacers

141‧‧‧Circle Department

142‧‧‧ side arm

143‧‧‧second groove

20‧‧‧ Pull unit

21‧‧‧ grip

22‧‧‧Plywood

221‧‧‧ pivot end

222‧‧‧ axle pin

23‧‧‧Operating parts

24‧‧‧Splashing bevel

25‧‧‧First groove

26‧‧‧ Rivets

30‧‧‧Transmission unit

31‧‧‧First ratchet gear

32‧‧‧Second ratchet gear

40‧‧‧First claw unit

41‧‧‧First spring

42‧‧‧First card condition

50‧‧‧second claw unit

51‧‧‧Second spring

52‧‧‧Second card condition

10’‧‧‧Tool head unit

11’‧‧‧ Subject

12’‧‧‧ Drives

13’‧‧‧Outer board

20’‧‧‧ Pull unit

21’‧‧‧ grip

221’‧‧‧ pivot end

27’‧‧‧First Carding Department

30’‧‧‧Transmission unit

40’‧‧‧First claw unit

50’‧‧‧second claw unit

60’‧‧‧Switch unit

61'‧‧‧Switching parts

611’‧‧‧ protruding curved surface

612’‧‧‧ concave curved surface

62’‧‧‧Post

63’‧‧‧Operation hole

10"‧‧‧Tool head unit

20"‧‧‧ Pull unit

221"‧‧‧ pivot end

27"‧‧‧First Carding Department

28"‧‧‧Second Carding Department

29"‧‧ Third Department of Cards

60”‧‧‧Switch unit

611"‧‧‧ protruding curved surface

612"‧‧‧ concave curved surface

Other features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings in which: FIG. 2 is a perspective view of a first preferred embodiment of a ratchet wrench that can be used and infused; and FIG. 3 is an exploded perspective view of the first preferred embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 5 is a schematic view showing a partial swing operation of a first preferred embodiment of the present invention; FIG. 6 is a schematic view of an inching operation of a first preferred embodiment of the present invention; FIG. 8 is a perspective view of a second preferred embodiment of the present invention; FIG. 9 is a perspective exploded view of a second preferred embodiment of the present invention; Figure 10 is a cross-sectional view showing a combination of a second preferred embodiment of the present invention, illustrating a mode of adjustment to a local swing operation; Figure 11 is a schematic view of the operation of the second preferred embodiment of the present invention, illustrating adjustment to a full operation mode; 12 is a perspective assembled view of a third preferred embodiment of the present invention; FIG. 13 is an exploded perspective view of a third preferred embodiment of the present invention; and FIG. 14 is a sectional view showing a combination of a third preferred embodiment of the present invention; , indicating adjustment to the entire straight rod operation mode; Figure 1 5 is another combined sectional view of one of the third preferred embodiments of the present invention, illustrating adjustment to a full bending operation mode; and FIG. 16 is a cross-sectional view showing still another combination of the third preferred embodiment of the present invention. Adjust to the local swing mode of operation.

Before the present invention is described in detail, it should be noted in the following In the description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2, FIG. 3 and FIG. 4, a first preferred embodiment of the dual-purpose and inching ratchet wrench of the present invention comprises a tool head unit 10, a trigger unit 20, a transmission unit 30, and a first A pawl unit 40 and a second pawl unit 50.

The tool head unit 10 has a main body 11 and a driving member 12 rotatably mounted inside the main body 11. The main body 11 has a pair of outer side plates 13 and a spacer 14 fixed between the outer side plates 13. Each of the outer side plates 13 has a through hole 131 and an extending portion 132 disposed on a side of the through hole 131. The spacer 14 has a ring portion 141 corresponding to the through hole 131 and having a hollow ring frame shape, and a pair of side arms 142 spaced apart from one side of the ring portion 141, wherein the side arm 142 has a first side Two grooves 143. The driving member 12 has a hollow cylindrical shape, and has a driving portion 121 which is disposed on the inner ring surface and has a ring-shaped shape, a driving ratchet 122 which is mostly surrounded by the outer peripheral surface, and two axially spaced apart from the driving ratchet The flange portion 123 on both sides of the 122, the driving ratchet 122 is sleeved in the ring portion 141, and the flange portions 123 are respectively axially disposed in the through holes 131, and the driving member 12 is axially limited. Located inside the main body 11.

The clamping unit 20 is rotatably pivotally connected to the main body 11 of the tool head unit 10, and has a grip 21, a pair of splints 22 fixed to both sides of one end of the grip 21 by a plurality of rivets 26, and a setting The operating member 23 at the other end of the grip 21. The grip 21 and the end of the clamping plate 22 are provided with a tilting ramp 24 facing the driving member 12 and a first recess 25 disposed on a side of the tilting ramp 24. The operating member 23 is opposite to the tilting ramp 24 can be used to operate the nut or the screw head. The operating member 23 of the embodiment is an open-end wrench, and of course, it can also be a plum wrench, a spanner wrench or a ratchet wrench (not shown). The splint 22 has a pivot end 221 disposed at the end and located outside the slanting ramp 24 and a pivot pin 222 disposed at the pivot end 221 and pivotally connected to the extension 132 of the main body 11.

The transmission unit 30 has a first ratchet gear 31 adjacent to the tilting ramp 24 and disposed between the outer side plates 13 of the main body 11 and a first ratchet gear 31 and the driving member 12 A second ratchet gear 32 is disposed between the outer plates 13 of the main body 11 and between the shafts.

The first claw unit 40 is mounted on the trigger unit 20 and has a first spring 41 mounted on the first recess 25 and abutting against the tilting ramp 24 and being biased by the first spring 41. The first ratchet gear 31 maintains a tendency to engage the first latch member 42.

The second claw unit 50 is mounted on the tool head unit 10 and has a second spring 51 mounted on the second recess 143 and a driving spine that is elastically biased toward the driving member 12 by the second spring 51. The second latching member 52 of the tooth 122 and the second ratchet gear 32 maintains a tendency to engage.

Using the ratchet wrench composed of the above components, as shown by the solid lines in FIG. 4 and FIG. 5, when the nut or the screw head is to be operated, the driving portion 121 is first sleeved on the nut or the screw head, and then the The grip 21 is oscillated in one direction with respect to the main body 11 with the pin shaft 222 as a center of rotation, and the first pawl unit 40 can cause the grip 21 to rotate the first ratchet gear 31, the first spine The gear 31 then rotates the second ratchet gear 32 to rotate, and the second ratchet gear 32 pushes the second latch member 52 of the second pawl unit 50 again. The driving ratchet 122 and the second ratchet gear 32 are elastically disengaged, and at the same time, the second ratchet gear 32 also pushes the driving ratchet 122, and the driving member 12 smoothly drives the nut or the screw head. That is, at this time, the pulling unit 20 is in a partial swing operation mode.

As shown in the phantom line of FIG. 5, when the operator reversely pulls the grip 21 to swing in the other direction with respect to the main body 11 with the pin shaft 222 as the center of rotation, the first pawl unit 40 is utilized. The first spring 41 can be compressed to cause the first latching member 42 to elastically disengage relative to the first ratchet gear 31, and to cause the pulling unit 20 to idle relative to the main body 11. By repeatedly operating the grip 21, the purpose of unidirectionally driving the nut or the screw head can be achieved.

As shown in FIG. 6 and FIG. 7 , when the operation space is limited, the operator can push and pull in the longitudinal direction of the grip 21 , and the pin unit 222 and the tool head unit 10 are mutually driven by the trigger unit 20 . The function of the pivoting is to use the first pawl unit 40 to interlock the first ratchet gear 31 with the gripper 21, and to drive the driving member 12 to rotate by the second ratchet gear 32, the triggering unit 20 also The main body 11 can be driven to pivot relative to the driving member 12, and the repeated operation can enable the driving member 12 to smoothly drive the nut or the screw head, not only for the purpose of the inching operation, but also for the narrow operation space.

Therefore, the first embodiment of the ratchet wrench of the present invention is disposed between the trigger unit 20 and the first ratchet gear 31 by using the first pawl unit 40, and is disposed on the drive by the second pawl unit 50. Between the driving ratchet 122 of the piece 12 and the second ratchet gear 32, not only the one-way driving and the high torque operation purpose but also the partial pendulum can be adjusted according to the operation space. The operation mode (see Figure 5) or the linear jog mode (see Figure 6 and Figure 7) is quite convenient.

As shown in FIG. 8 and FIG. 9 , the second preferred embodiment of the dual-purpose and indented ratchet wrench of the present invention comprises a tool head unit 10 ′, a trigger unit 20 ′, and a transmission unit 30 ′. A first pawl unit 40', a second pawl unit 50', and a switching unit 60' disposed on the main body 11' of the tool head unit 10'. The difference from the first embodiment is that the pulling unit 20' further has a first locking portion 27' adjacent to the switching unit 60' and recessed by the pivoting end portion 221'. . The switching unit 60' has a pair of switching members 61' disposed outside the outer side plates 13', a post 62' for connecting the switching members 61', and a switch member 61' disposed at one of the switching members 61'. The operation hole 63' is in the shape of a disc having a disc shape, and has a convex arc surface 611' disposed on the outer circumference and a side of the convex arc surface 611' and is opposite to the protrusion The curved surface 611' is a concave concave curved surface 612' which has the same contour shape as the first locking portion 27' and is complementary to the concave and convex.

When the tool hole 63' is inserted into the operation hole 63', the switching unit 60' can be switched from a first position to a second position. When the switching unit 60' is in the first position, the concave curved surface 612' is opposite to the pivot The end portion 221' (see FIGS. 8 and 10), at this time, the space of the concave curved surface 612' forms a swiveling space of the pivoting end portion 221', and the pivoting end portion 221 of the pulling unit 20' is urged. 'can be rotated relative to the tool head unit 10', that is, the operator can pull the grip 21' to reciprocate with respect to the main body 11' with the pin shaft 222' as a center of rotation, and then the swinging unit 20' is a partial swing operation mode.

It is worth mentioning that the switching unit 60' is switched to the first position. In this case, the ratchet wrench can also adjust the linear inching operation mode according to the operation space (similar to the operation modes of FIG. 6 and FIG. 7).

As shown in FIG. 11 , when the switching unit 60 ′ is switched to the second position, the protruding curved surface 611 ′ is sleeved in the first locking portion 27 ′, and the pivoting unit 20 ′ pivots. The end portion 221' is rigidly connected to the tool head unit 10' through the switching unit 60', and is coupled to the first claw unit 40' and the driving member 12' by the transmission unit 30'. The grip 21' can interlock the main body 11' to generate an overall swing. At this time, the ratchet wrench is adjusted to the entire operation mode.

As shown in FIG. 12 and FIG. 13, the third preferred embodiment of the dual-purpose and intruding ratchet wrench of the present invention is similar to the second embodiment, and the toggle unit 20" has a pivoting The end portion 221" is recessed outside the first locking portion 27" having a curved surface, and has a concave portion 221" on the side of the first locking portion 27" and is concavely curved by the pivoting end portion 221" a second clamping portion 28" and a third locking portion 29" on the other side of the first locking portion 27" and recessed by the pivoting end portion 221", the convex curved surface The 611" is also identical in contour shape to the second engaging portion 28" and the third engaging portion 29" and is complementary to the concavities and convexities.

As shown in FIG. 12 and FIG. 16, when the switching unit 60" is switched to the first position, the concave curved surface 612" relative to the pivoting end portion 221" causes the pulling unit 20" to be partially oscillated. Mode (similar to the operating mode of Figure 10).

As shown in FIG. 14, when the switching unit 60" is in the second position, the convex curved surface 611" can be sleeved on the first locking portion 27", and the pivoting end portion 221" of the pulling unit 20" Producing a straight rod shape with respect to the tool head unit 10" Rigid connection, the ratchet wrench is adjusted to the full operating mode (similar to the operating mode of Figure 11).

In addition, as shown in FIG. 15, when the switching unit 60" is in the second position, the convex curved surface 611" can be sleeved on the second clamping portion 28" (see FIG. 15) or the third card. In the portion 29" (not shown), the pulling unit 20" produces a tortuous rigid connection with respect to the tool head unit 10", which can generate a large pulling torque.

Therefore, it can also be seen from the third embodiment that the present invention can be adjusted to different operation modes depending on the operation space, and is relatively convenient to use.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

10‧‧‧Tool head unit

11‧‧‧ Subject

12‧‧‧ Drives

121‧‧‧ Drive Department

122‧‧‧ drive ratchet

123‧‧‧Flange

13‧‧‧Outer board

131‧‧‧Perforation

132‧‧‧Extension

14‧‧‧ spacers

141‧‧‧Circle Department

142‧‧‧ side arm

143‧‧‧second groove

20‧‧‧ Pull unit

21‧‧‧ grip

22‧‧‧Plywood

221‧‧‧ pivot end

222‧‧‧ axle pin

23‧‧‧Operating parts

24‧‧‧Splashing bevel

25‧‧‧First groove

26‧‧‧ Rivets

30‧‧‧Transmission unit

31‧‧‧First ratchet gear

32‧‧‧Second ratchet gear

40‧‧‧First claw unit

41‧‧‧First spring

42‧‧‧First card condition

50‧‧‧second claw unit

51‧‧‧Second spring

52‧‧‧Second card condition

Claims (7)

A dual-purpose and inching ratchet wrench comprising: a tool head unit having a main body and a driving member rotatably mounted on the main body, the driving member having a driving portion and a plurality of driving around the outer peripheral surface a ratchet unit rotatably pivotally connected to the main body of the tool head unit and having a tilting slope facing the driving member; a transmission unit having an axis adjacent to the tilting ramp a first ratchet gear of the main body and a second ratchet gear meshed between the first ratchet gear and the driving member and disposed on the main body; a first claw unit is mounted on the pulling unit, and Having a first spring and a first latch member that is constantly engaged by the first spring elastic force toward the first ratchet gear; and a second pawl unit mounted on the tool head unit and having a first a second spring and a second latch member that is biased by the second spring force to maintain a tendency of the drive ratchet of the drive member to engage with the second ratchet gear. The utility model as claimed in claim 1 , wherein the switchable unit is provided with a shaft, and a switching unit is disposed on the main body of the tool head unit, the switching unit has at least one switching component, and the switching component has a convex arc. And a concave curved surface, the pulling unit has a pivoting end adjacent to the switching member and a first locking portion recessed by the pivoting end portion in a curved shape, the convex curved surface The first clamping portion has the same contour shape and is complementary to the concave and convex portions, and the switching member of the switching unit can be switched from a first position to a second position. In the first position, the concave curved surface is opposite to the locking portion. Moving unit The pivoting end is rotatable relative to the tool head unit, and in the second position, the convex arc is disposed in the first locking portion, and the pivoting end of the pulling unit is generated relative to the tool head unit Rigid connection. The dual-purpose and inching ratchet wrench according to claim 2, wherein the pulling unit further has a side of the first locking portion and is concavely curved by the pivoting end portion. a second clamping portion, the convex arc surface and the second clamping portion have the same contour shape and are complementary to the concave and convex portions. When the switching member is in the second position, the convex arc surface is disposed in the second clamping portion. The pivoting end of the triggering unit produces a tortuous rigid connection with respect to the tool head unit. The dual-purpose and inching ratchet wrench according to claim 3, wherein the pulling unit further has a other side of the first clamping portion and is concavely curved by the pivoting end portion. a third clamping portion, the convex arc surface is identical in shape to the contour of the third clamping portion and is complementary to the concave and convex portions. When the switching member is in the second position, the convex arc surface is disposed in the third clamping portion. The pivoting end of the triggering unit produces a tortuous rigid connection with respect to the tool head unit. The dual-purpose and inflatable ratchet wrench according to any one of claims 1 to 4, wherein the main body of the tool head unit has a pair of outer plates and a fixed between the outer plates. a spacer, each of the outer plates has a through hole and an extension portion disposed on one side of the through hole, the spacer has a ring portion corresponding to the through hole and a pair of side arms that are coupled to one side of the ring portion Wherein one side arm has a second groove, the second claw unit is mounted on the second groove, and the driving member further has a second portion disposed on the driving Flange portions on both sides of the ratchet, the flange portions are respectively axially disposed in the through holes, and the driving ratchet is sleeved in the ring portion. The dual-purpose and inching ratchet wrench according to any one of claims 2 to 4, wherein the pulling unit has a grip and a pair of fixed ends on one end of the grip. a splint, the tilting bevel is disposed at an end of the grip, the pivot end is disposed at an end of the splint and located outside the tilting ramp, the grip further has a first recess disposed on a side of the tilting ramp groove. The dual-purpose and inching ratchet wrench according to claim 5, wherein the pulling unit further has an operating member disposed on the other end of the grip and opposite to the tilting ramp, the operating member is used for Operate the nut or screw head.