TW201943509A - Ratchet wrench capable of quickly changing driving member which is convenient to operate and effort saving - Google Patents

Abstract

A ratchet wrench capable of quickly changing the driving member is mainly provided on the working end of the ratchet wrench with a turning ring that can be turned by a user. When the turning ring is turned, a plate-shaped clutch member provided at the working end can be coupled to move to a locking position or a withdrawal position. When in the locking position, the locking portion of the plate-shaped clutch member is locked with the locking slot of a driving member jointed with the ratchet of the ratchet wrench, thereby positioning the driving member so as not to be released from the ratchet wrench. On the contrary, when in the withdrawal position, the locking portion is released from the locking slot, so the driving member can be replaced.

Description

   Quick-change ratchet wrench   

The invention relates to a ratchet wrench, in particular to a ratchet wrench capable of quickly replacing a driving member.

A ratchet wrench is a hand tool that can control the direction of idling. It allows the operator to keep turning the workpiece (screw, bolt or nut) without removing the wrench. It is an extremely widely used and important hand tool. Due to the different sizes, sizes, and types of workpieces used in different applications, the driving parts used to drive these workpieces are also different. In order to facilitate the matching of a ratchet wrench with different driving parts, a detachable combination mode is required between the ratchet wrench and the driving part to facilitate the replacement of the driving part. In a patent case TWI529036, the reversing element controlling the ratcheting of the ratchet wrench is used as the key element for the engagement and disengagement of the driving member. The reversing element is not only turned by the user to change the ratcheting direction, but also Actuate to control the engagement and disengagement of the driver. The reversing member is responsible for the actions in the four directions of left, right, up, and down. If one of the actions is blocked, the ratcheting of the ratchet wrench and the engagement / disengagement of the driving member are all invalidated.

In order to solve the above problem, the present invention provides a ratchet wrench for quickly replacing a driving member.

A ratchet wrench for quickly changing a driving part includes: a positioning ring formed on the upper wall surface of the working end of a ratchet wrench; a dial ring rotatably sleeved on the positioning ring, including a rotating part and an actuating part ; The outer circumferential surface of the actuating portion has a plurality of grooves in the centripetal direction and protrusions in the centrifugal direction, the grooves and the protrusions are spaced apart; a receiving groove formed on the upper wall surface of the working end and adjacent The positioning ring is provided with an opening toward the receiving slot; a spring is provided in the receiving slot in the direction of the long axis of the ratchet wrench; a cover covers and fixes the receiving slot; a plate-type clutch The sliding part is provided in the cover, and the end of the plate-type clutch includes a clamping part and a pushing contact part, and the clamping part and the pushing contact part are directed to the actuating part of the dial ring. ; The end of the plate clutch away from the dial ring is pushed by the spring; the plate clutch can slide to a clamping position and a withdrawal position; at the clamping position, the plate clutch The pushing contact portion is locked in the groove of the urging portion, and the locking portion is locked in a combination with In a latching groove of a driving member in a ratchet of the wrench wrench; in the retreat position, the convex portion of the movable portion is pushed against the pushing contact portion of the plate-type clutch, and the latching portion is disengaged from the Card slot.

In a preferred example, the outer peripheral surface of the rotating portion is provided with a slip prevention pattern.

In a preferred example, the groove and the convex portion are connected by a slope wall.

In a preferred example, a spring groove is recessed downward from the groove bottom of the receiving groove, and the spring is disposed in the spring groove; the plate-type clutch includes a tail block protruding into the spring groove, and is received by the spring. To the top.

In a preferred example, the engaging portion extends beyond the pushing contact portion in a horizontal direction along the plate-type clutch.

In a preferred example, the accommodating groove is recessed from the bottom of the groove with a slewing space, the plate clutch has a long perforation corresponding to the slewing space, and the cover has a slewing hole corresponding to the slewing space. A rotary shaft of a commutator of the ratchet wrench is positioned in the rotary space through the long perforation.

In a preferred example, the inside of the cover has a plate groove opened toward the opening of the positioning ring, and the plate-type clutch is slidably disposed in the plate groove.

Effects of the invention:

The user can control the plate clutch to slide in a locking position and a retracting position by turning the turning ring, thereby locking or releasing the driving member.

The user can touch and turn the dial ring with his finger while holding the ratchet wrench, which is convenient and labor-saving.

The invention uses the rotation of the dial ring to convert the horizontal sliding of the plate-type clutch.

The rotary action of the dial ring is performed on the horizontal plane of the working end of the ratchet wrench, and the sliding movement of the plate clutch is also performed on the horizontal plane of the working end of the ratchet wrench. The operating direction of the engagement and disengagement driving members of the present invention And the method excludes the vertical direction and vertical movement.

In the design of the present invention, the device for controlling the engagement and disengagement of the driving member and the reversing member for controlling the direction of rotation of the ratchet are independent devices, and there is no interference with each other.

10‧‧‧ work side

11‧‧‧ Ratchet Space

12‧‧‧Tooth block space

13‧‧‧ Upper wall surface

32‧‧‧turn hole

33‧‧‧Slot

40‧‧‧ plate clutch

41‧‧‧Spring

14‧‧‧ positioning ring

141‧‧‧ opening

15‧‧‧Fastener

16‧‧‧ Receiving slot

161‧‧‧turning space

162‧‧‧Spring slot

17‧‧‧ sidewall

20‧‧‧Dial ring

21‧‧‧Rotating part

211‧‧‧Slip prevention

22‧‧‧Motion Department

221‧‧‧Groove

222‧‧‧ convex

223‧‧‧ slope wall

30‧‧‧Cap

31‧‧‧Fixed element

42‧‧‧ long perforation

43‧‧‧Card Making Department

44‧‧‧ Push contact

45‧‧‧tail

50‧‧‧ Ratchet

51‧‧‧ Reversing gear block

52‧‧‧Reversing piece

521‧‧‧Rotary shaft

522‧‧‧ lever

523‧‧‧Spring

524‧‧‧ Linkage

53‧‧‧Seal

54‧‧‧ buckle

60‧‧‧Driver

61‧‧‧Ratchet

62‧‧‧Card slot

The first picture is a three-dimensional appearance of the creation.

The second image is a three-dimensional exploded view of the creation in a top view.

The third picture is a three-dimensional exploded view of the creative's upward direction.

The fourth picture is one of the sectional view and action diagram of the creation.

The fifth picture is the second cross-sectional view and action diagram of the creation.

The sixth figure is a sectional view of the fourth figure VI-VI.

The seventh figure is a sectional view of the fifth figure VII-VII.

In order to facilitate the description of the central idea of the present invention in the above-mentioned summary of content, specific embodiments are described below. Various objects in the embodiments are depicted in proportions, sizes, deformations, or displacements suitable for illustration, rather than in proportion to actual elements, which will be described together.

As shown in the first to fourth figures, the ratchet wrench of the present invention has a ratchet space 11 and a tooth block space 12 at its working end. By combining a piece 53 and a retaining ring 54 on the working end 10, a ratchet 50 and A reversing tooth block 51 is respectively placed in the ratchet space 11 and the tooth block space 12, and the ratchet teeth of the ratchet wheel 50 and the reversing tooth block 51 are engaged with each other.

A positioning ring 14 is protruded upward from the upper wall surface 13 of the working end 10 corresponding to the position of the ratchet wheel 50. The positioning ring 14 is used to sleeve a dial ring 20, and the positioning ring 14 is used for a fastener 15 to be locked. In order to restrain the dial ring 20 from being separated from the positioning ring 14, the dial ring 20 can rotate around the positioning ring 14 when subjected to a dialing external force. The dial ring 20 includes a rotating portion 21 and an urging portion 22 located below the rotating portion 21. An outer circumferential surface of the rotating portion 20 has anti-slip marks 211, and an outer circumferential surface of the urging portion 22 has a plurality of directions. The groove 221 in the center direction and the convex portion 222 in the centrifugal direction. The groove 221 and the convex portion 222 are spaced apart. The groove 221 and the convex portion 222 are connected by a slope wall 223. The slope wall 223 is as follows Figures 6 and 7 show. The outer circumferential surface of the rotating portion 21 protrudes slightly from the side wall 17 of the working end 10 to facilitate the user's fingers to contact the rotating portion 21 to turn the dial ring 20.

An upper wall surface 13 of the working end 10 is provided with a receiving groove 16 adjacent to the positioning ring 14. The positioning ring 14 is provided with an opening 141 communicating with the receiving groove 16. A rotation space 161 and a spring groove 162 are recessed downward from the receiving groove 16 from the bottom of the groove. A spring 41 is disposed in the spring groove 162. A cover 30 is set in the accommodating slot 16 through two fixing elements 31. The cover 30 has a rotary hole 32 communicating with the rotary space 161, and a rotary shaft 521 of a reversing member 52 passes through the rotary hole. 32 and enters the turning space 161, the lever 522 of the reversing member 52 is located outside the cover 30.

The cover 30 has a plate groove 33 opened toward the opening 141 of the positioning ring 14. A plate-type clutch 40 is slidably disposed in the plate groove 33. The sliding direction of the plate-type clutch 40 is toward The positioning ring 14 is reciprocated. The plate-shaped clutch member 40 has a long perforation 42 for the rotation shaft 521 of the reversing member 52 to pass through, and the reversing member 52 does not affect the sliding of the plate-shaped clutch member 40. The plate-type clutch 40 has a clamping portion 43 and a pushing contact portion 44. The pushing-contact portion 44 is located above the locking portion 43, and the locking portion 43 is at a level along the plate-type clutch 40. The direction extends beyond the pushing contact portion 44. The plate-shaped clutch member 40 extends into the spring groove 162 with a tail block 45, and two ends of the spring 41 abut against the groove wall of the spring groove 162 and the tail block 45, respectively.

As shown in the fourth and fifth figures, the rotation shaft 521 of the reversing member 52 is provided with a spring 523 and abuts against a linking member 524, and the linking member 524 pushes the reversing tooth block 51. The interlocking member 524 is driven by the reversing member 52 to shift the reversing tooth block 51 left and right, so as to change the operating direction of the ratchet wheel 50 and the idling direction of the wrench. This is a conventional technique, so I won't go into details here.

As shown in the first, fourth, and sixth figures, the plate clutch 40 is fed to the opening 141 of the positioning ring 14 to a locking position by the elastic force of the spring 41. The locking portion 43 passes through the positioning ring 14. The opening 141 projects radially into the ratchet space 11 and is located above the ratchet wheel 50, so it does not affect the operation of the ratchet wheel 50. At the same time, the pushing contact portion 44 is located in one of the recesses of the actuating portion 22 of the dial ring 20. In slot 221. A driving member 60 (a sleeve in the illustration, but not limited to this) is sleeved in the ratchet wheel 50 with a ratchet portion 61 thereof. The driving member 60 has a ring-shaped engaging groove 62 and the plate-shaped clutch member 40. The engaging portion 43 is engaged in the engaging groove 72, so that the driving member 6-is engaged in the ratchet wheel 50 without falling off. When the wrench rotates in the working direction, the ratchet wheel 50 can synchronously drive the driving member 60 to rotate, and the driving member 60 can tighten a workpiece.

As shown in the fifth and seventh figures, when removing or replacing 60 pieces of driving, the user can turn the rotating part 21 of the turning ring 20 with his finger, and the actuating part 22 pushes the plate-shaped clutch 40 with the convex part 222. The pushing contact portion 44 retreats the plate-shaped clutch member 40 in a direction away from the driving member 60 to a retreat position, and compresses the spring 41 to disengage the locking portion 43 of the plate-shaped clutch member 40 from the The engaging slot 62 of the driving member 60 can be separated from the ratchet wheel 50. The protruding portion 222 abuts against the pushing contact portion 44, and keeps the plate-type clutch member 40 in the withdrawal position so as to replace other types of driving members.

As shown in the fourth and sixth figures, after replacing the driving member 60, the dial ring 20 can be turned again, so that the convex portion 222 is turned away from the pushing contact portion 44 and switched to the groove 221 corresponding to the pushing contact portion. 44. The spring 41 releases the plate-type clutch 40 to the above-mentioned clamping position. Based on the fact that the groove 221 of the actuating portion 22 and the convex portion 222 are connected by a slope wall 223, when the dial ring 20 rotates, the slope wall 223 has a sliding effect on the pushing contact portion 44 so that The groove 221 and the convex portion 22 can smoothly switch to correspond to the pushing contact portion 44.

Claims (7)

    A ratchet wrench for quickly changing a driving part includes: a positioning ring formed on the upper wall surface of the working end of a ratchet wrench; a dial ring rotatably sleeved on the positioning ring, including a rotating part and an actuating part ; The outer circumferential surface of the actuating portion has a plurality of grooves in the centripetal direction and protrusions in the centrifugal direction, the grooves and the protrusions are spaced apart; a receiving groove formed on the upper wall surface of the working end and adjacent The positioning ring is provided with an opening toward the receiving slot; a spring is provided in the receiving slot in the direction of the long axis of the ratchet wrench; a cover covers and fixes the receiving slot; a plate-type clutch The sliding part is provided in the cover, and the end of the plate-type clutch includes a clamping part and a pushing contact part, and the clamping part and the pushing contact part are directed to the actuating part of the dial ring. ; The end of the plate clutch away from the dial ring is pushed by the spring; the plate clutch can slide to a clamping position and a withdrawal position; at the clamping position, the plate clutch The pushing contact portion is locked in the groove of the urging portion, and the locking portion is locked in a combination with In a latching groove of a driving member in a ratchet of a wrench wrench; in the retracted position, the convex portion of the movable portion is pushed against the pushing contact portion of the plate-type clutch, and the latching portion is disengaged from the card Slotting.         The ratchet wrench as claimed in claim 1, wherein the outer peripheral surface of the rotating portion is provided with a slip prevention pattern.         The ratchet wrench for quickly replacing a driving member according to claim 1, wherein the groove and the convex part are connected by a slope wall.         The ratchet wrench for quickly replacing a driving member according to claim 1, wherein a bottom of the accommodating groove is recessed with a spring groove, and the spring is disposed in the spring groove; the plate clutch includes a tail extension. Into the spring groove and pressed against by the spring.         The ratchet wrench as claimed in claim 1, wherein the engaging portion extends beyond the pushing contact portion in a horizontal direction along the plate-type clutch.         The ratchet wrench for quickly replacing a driving member according to claim 1, wherein the receiving groove is recessed from a bottom of the groove to a turning space, the plate clutch has a long perforation corresponding to the turning space, and the cover There is a turning hole corresponding to the turning space, and a turning shaft of a reversing member of the ratchet wrench is positioned in the turning space through the long perforation.         The ratchet wrench for quickly replacing a driving component according to claim 1, wherein the inside of the cover has a plate groove opened toward the opening of the positioning ring, and the plate-type clutch is slidably disposed in the plate groove.