TWI395640B - Rotatable driving head type wrench - Google Patents

Description

Rotary head wrench structure

The invention relates to a rotary head wrench structure, in particular to a structure in which a drive head having a plurality of sizes of sleeves at one or both ends of the wrench can be quickly replaced with a ratchet block or replaced with the original drive head.

According to the previous drive heads with one size at both ends of the wrench, the drive head structure of various sizes requires a special design, and the conventional one is to achieve the multi-size driving function in the same wrench, which is commonly known as a dog bone wrench. There are eight sizes of the two head drive parts, one of which is the modified structure of the multi-purpose socket wrench of Taiwan No. M386138. Two rotatable drive heads are arranged at the two ends of the handle of the wrench. A sleeve having four different sizes, which is provided with a magnet on the handle for adsorption on the surface of the vehicle or other articles, and a wrench which can be used with different sizes of nuts, No. M257930, No. M257930 "The structure of the rotary wrench is improved", and the handle of the same wrench as in the previous case is configured in a multi-piece structure, which can be integrated into each other, and the wrench of M370463 can be used with different sizes. A stop member is arranged between the wrench and the rotatable driving head to stop the rotatable driving head from being positioned. The various multi-size driving wrench structures are arranged in the structure of the driving head. The structure of the tube composite can only provide the function of the sleeve drive, and cannot provide other functions of the drive form, such as a ratchet, which cannot form a multiplexed use, so the functionality is still limited.

However, the above-mentioned various size-driven wrenches are not improved in the quick replacement of the head structure, and the structure in which the driver head can be quickly replaced for the wrench is as described in the "Mr. Rotating Wrench Structure Improvement" of the M315623 a gap is formed, a fixing member traverses the gap, and the width of the gap is controlled by the fixing member, so that the driving head clamped between the two clamping arms can be loosened or clamped, and the gap is set in the two At the shank between the clamp arms, the gap easily causes a problem of internal stress concentration of the shank structure, and even if the shank is used for a period of time, causing structural strength changes due to excessive stress concentration, there is a need for improvement, and The fixing member must be screwed tightly, the speed of the screw locking process is limited, the convenience of the quick and effective replacement is not good, and the driving head shape of the current driving head regardless of the size of the replacement is adopted. Both are a multi-size sleeve composite structure, and there is no other multiplexed structure, such as a ratchet, which cannot be used with the current handle, and cannot provide different needs. Therefore, the general dog bone The head wrench can only be a multi-size sleeve drive structure and cannot be used in a ratchet manner. Therefore, when there is a need for ratcheting, it must be additionally connected to the sleeve of the drive head, and then at the other end of the joint. The ratchet is connected to meet the needs of the ratcheting work, and there are still many inconveniences in use.

In view of this, the inventor of this case has carefully studied and accumulated years of experience in structural products and technology development of various hand tools, and finally developed a rotary head wrench structure.

The object of the present invention is to provide a rotary head wrench structure, wherein the pivot pivotally connected between the wrench and the driving head is in a quick-disconnecting configuration, that is, the pivot axis is perpendicular to the pivot axis. A positioning member is disposed on the elastic elastic top, so that when the pivoting member is placed on the wrench, the positioning member is elastically stretched and locked on the opposite structure of the wrench, and the driving head can be quickly detached Or combining the wrench, and the concave portion and the fitting portion are provided on the wall surface of the accommodating space of the driving head opposite to the circumference of the ratchet block, so that the ratchet block can be quickly determined. It is located in the accommodating space and is driven to form a ratchet-shaped driving structure to achieve different working conditions, including different requirements of various sizes of sleeves and ratchets and multiplexing purposes.

Another object of the present invention is to provide a rotary head wrench structure, wherein the wrench is provided with a through hole through a pivot hole, and a peripheral portion of the through hole is provided with a groove portion in a groove shape. The pivoting shaft portion is oppositely provided with a protruding stop bolt, so that after the pivot shaft is loaded into the wrench, the locking bolt is in the form of the locking bolt portion, and the pivot shaft remains non-rotating. The driving head is provided with a toothed locking portion to be elastically supported by the positioning portion of the pivoting shaft, so that the driving head can be rotated in a paragraph shape to facilitate the user. Quickly locate users.

Another object of the present invention is to provide a rotary head wrench structure, wherein a position of the ratchet block opposite to the wrench is oppositely provided with a groove-shaped standing groove and a fixed piece having an elastic topping force, so that the The ratchet block can additionally form a structural relationship of elastic snap positioning when the concave and convex portions are embedded, so as to improve the stability after the insertion.

A further object of the present invention is to provide a rotary head wrench structure, wherein the wrench has a recessed fitting portion at the head of the wrench corresponding to the width of the ratchet block, so that the wrench can accommodate the ratchet block. When the ratchet block is directly clamped on the ratchet block on the fitting portion of the recess, the purpose of fast collection is achieved, and the shape of the open end is kept open for the user to directly drive the work, and the ratchet There is another joint at the center of the ratchet of the block, and the two ends of the joint are respectively formed in a single layer and a multi-layered multi-angle clamping portion, and a resiliently held positioning member and a disc-shaped block are arranged at the waist of the joint. The edge is to reach the user who is driven by the ratchet block.

The above described objects, features and other advantages of the present invention will become apparent to those skilled in the <RTIgt; An in-depth and specific understanding can be obtained, but the invention is not the only embodiment, and is described herein.

As shown in the first and second figures, the heads of the wrench 10 of the present invention are U-shaped pivoting portions 11 , and the pivoting portions 11 are oppositely provided with the through-holes 110 of the perforated shape. A locking slot-shaped latching portion 111 is further disposed at a periphery of the inner diameter of the through-hole hole 110. The latching portion 111 is recessed outwardly from the pivoting portion 11 in the direction of the through-hole 110, and is at the pivoting portion. A recessed outwardly accommodating space 12 is formed, and a custom hole 112 and a pivoting portion are disposed on a surface of the pivoting portion 11 at a free end opposite to the accommodating space 12 A first hole-shaped first fitting portion 113 is further disposed on the wall surface of the accommodating space 12, and a convex shape is extended from the two sides of the pivoting portion 11 to the accommodating space 12 at a corner. The second fitting portion 114 cooperates with each other, and in addition to the driving head 20 of the conventional multi-sleeve configuration, the pivoting shaft 30 can be quickly disassembled or assembled to the wrench 10, and can be embedded in a piece. And has a ratchet 41 The ratchet block 40 and the joint 50 achieve the multiplexed demand.

However, the driving head 20 of the present invention is not much different from the conventional structure, that is, the number of driving holes 21 having different sizes and different directions in a sleeve-joining composite state, and the driving holes 21 are joined to each other in a cross shape. The structure of the driving head 20 is provided with a pivot hole 22 at the center of the driving hole 20, and a toothed locking portion 220 is disposed at the open end of the pivot hole 22 to match the opposite structure of the pivot shaft 30 to reach a paragraph. The effect of the card system.

The pivot shaft 30 has a rod-shaped shaft portion 301 having a circular diameter larger than the head portion 300 of the through-hole hole 110 and extending from the head portion 300 toward the shaft-through hole 110. The shaft portion 301 is adjacent to the shaft portion 301. A plug hole 302 is axially disposed perpendicular to the shaft portion 301 at the head portion 300 to insert and fix the rod-shaped stopper 31 so that the shaft portion 301 penetrates the shaft hole 110. 3, the end of the shaft 31 is clamped into the locking portion 111 so that the shaft portion 301 is kept in a non-rotating state; and the shaft portion 301 is further provided with a container. The hole 303 is configured to accommodate an elastic body 32 in the form of a spring and a positioning member 33 in the form of a steel ball so that the positioning member 33 slightly protrudes from the open end of the container hole 303 and is mutually engaged with the locking portion 220 of the driving head 20. When the pivot 30 is pulled outward, when the shaft portion 301 moves in the through hole 110, when the positioning member 33 moves into the through hole 110, the positioning member 33 is retracted into the capacity. In the hole 303, after the container hole 303 of the shaft portion 301 passes through the through hole 110, the positioning member 33 is ejected to a portion of the volume exposed to the shaft portion 301, and the pivot 30 can be When the pivoting hole 30 is inserted into the shaft hole 110, the driving head 20 is pivotally connected to the wrench 10, and the elastic shaft is slightly protruded. The positioning member 33 on the surface of the rod portion 301 is engaged with the locking portion 220 of the pivot hole 22 of the driving head 20 to form a locking form of the elastic section.

The ratchet block 40 is a flat square structure, and a ratchet wheel 41 is disposed at a maximum area. The ratchet block 40 has a width corresponding to the accommodating space 12, and the ratchet block 40 can enter and exit through the opening of the accommodating space 12 to The ratchet block 40 is perpendicular to the central axial direction of the ratchet wheel 41 and further has a transverse through-cylindrical shaft portion 42 for the shaft portion 301 of the pivot shaft 30 to be pivotally connected thereto. The hole 10 is further provided with a hole-shaped portion 43 for the positioning device 44. The positioning device 44 has a steel ball form standing block member 440 and a push. The elastic body 441 of the spring member of the block member 440 is disposed on the custom hole 112 by the block member 440 when the ratchet block 40 is embedded in the accommodating space 12, For the purpose of the preliminary positioning, the ratchet block 40 and the wall portion of the pivoting portion 11 opposite to the accommodating space 12 are provided with a concave-convex opposite embedded structure, including: the ratchet block 40 is opposite to the pivoting portion 11 a first embedded portion 45 having a cylindrical shape and a second embedded portion 46 at a corner of the first embedded portion 45 are provided to match the foregoing The second fitting portion 114 forms a stable structure that is mutually engaged.

The joint 50 is a polygonal columnar structure. The figure is a hexagonal cylinder, and the joint 50 is formed at a plurality of end portions of the intermediate portion 51 to form a multi-layered and multi-layered stepped portion 52 of a single layer. And a single-layer clamping portion 53 for respectively engaging the above-mentioned ratchet block 40 with a driving hole 21 of a different size in the shape of a sleeve, and forming a flange at the end portion 51 near the end of the multi-layered locking portion 52 a retaining edge 54 of the shape, and at the central position of the middle portion 51 is further disposed with a hole locating a positioning member 55 in the form of a steel ball and a spring 56 pushing the positioning member 55 to elastically clamp the ratchet block The ratchet of 40 is inside.

With the foregoing structure, when the driving head 20 is received in the accommodating space 12, the driving head 20 can be determined to be positioned on the wrench 10 by being worn by the pivoting shaft 30, and The pivot shaft 30 is firstly detached from the pivoting position of the driving head 20, and the ratchet block 40 can directly insert the first embedded portion 45 with the second inserting portion. The portion 46 is aligned with the first fitting portion 113 and the second fitting portion 114 of the pivoting portion 11 to be directly embedded with each other, and the elastic locking of the customized hole 112 and the abutting member 440 is achieved. The purpose of multiple positioning.

The user can be regarded as a general ratchet wrench as shown in FIG. 4; at the same time, the pivot 30 can be inserted back into the shaft hole 110 and the shaft portion 42 to achieve the best combination. The ratchet block 40 is disposed on the wrench 10; and after the connector 50 is transferred to the ratchet block 40, the end portion is further assembled with the removed drive head 20 so that the drive end 21 of the drive head 20 is at the other end. It can be a socket wrench function with a ratchet function and become a multiplexed structure.

In addition, a recessed fitting portion 115 is further recessed on the surface of the pivot portion 11 of the wrench 10, so that the ratchet block 40 can be embedded therein, and the other driving heads 20 are still pivotally connected thereto. The two ends of the wrench 10 are convenient for carrying.

As shown in FIG. 5, the ratchet block 40 of the present invention has only the first fitting portion 45, and the pivoting portion 11 has opposite first fitting portions 113 for positioning with each other, and the ratchet The directional control member 47 of the directional control device is additionally provided on the block 40 on the block 40. However, the structure of the portion is a conventional structure, which is not the feature of the present invention. Therefore, the ratchet block 40 can be omitted. The controller of the direction of the spine.

In summary, the structure of the rotary head wrench disclosed in the invention of the present invention, the special design has been "has the availability of the industry" should be undoubted, in addition, the technical features revealed in the creation of the case, before the application It has not been seen in publications, nor has it been used publicly. In addition, it has the fact that the above-mentioned effects are enhanced. Therefore, the "novelty" and "progressiveness" of the present invention are in compliance with the provisions of the Patent Law, and the application for creating a patent is legally proposed. I pray for a review and an early grant of a patent.

10‧‧‧Wrench

11‧‧‧ pivotal department

110‧‧‧With shaft hole

111‧‧‧Tie section

112‧‧‧Custom holes

113‧‧‧First Embedded Department

114‧‧‧Second Embedded Department

115‧‧‧Mate

12. . . Housing space department

20. . . Drive head

twenty one. . . Drive hole

twenty two. . . Pivot hole

220. . . Carding department

30. . . Pivot

300. . . head

301. . . Shaft portion

302. . . Borehole

303. . . Capacitor hole

31. . . Stop bolt

32. . . Elastomer

33. . . Positioning member

40. . . Ratchet block

41. . . ratchet

42. . . Wear shaft

43. . . Tolerance

44. . . Positioning means

440. . . Block

441. . . Elastomer

45. . . First embedded part

46. . . Second embedded part

47. . . Direction control

50. . . Connector

51. . . Middle section

52. . . Multi-layer carding department

53. . . Single layer carding department

54. . . Retaining edge

55. . . Positioning member

56. . . spring

Figure 1 is a perspective view of the overall combination of the present invention.

Figure 2 is a schematic exploded view of the overall system of the present invention.

Fig. 3 is a schematic view showing the action of inserting or withdrawing the pivot hole of the pivot shaft of the present invention with the pivot hole of the pivot portion.

Fig. 4 is a schematic view showing the three-dimensional state of the driving head detaching wrench and the ratchet block of the present invention.

Fig. 5 is a perspective view showing another embodiment of the present invention.

10. . . wrench

11. . . Pivot

110. . . Through the shaft hole

111. . . Tie section

112. . . Custom hole

113. . . First embedded part

114. . . Second embedded part

115. . . Mating part

12. . . Housing space department

20. . . Drive head

twenty one. . . Drive hole

twenty two. . . Pivot hole

220. . . Carding department

30. . . Pivot

300. . . head

301. . . Shaft portion

302. . . Borehole

303. . . Capacitor hole

31. . . Stop bolt

32. . . Elastomer

33. . . Positioning member

40. . . Ratchet block

41. . . ratchet

42. . . Wear shaft

43. . . Tolerance

44. . . Positioning means

440. . . Block

441. . . Elastomer

45. . . First embedded part

46. . . Second embedded part

50. . . Connector

51. . . Middle section

52. . . Multi-layer carding department

53. . . Single layer carding department

54. . . Retaining edge

55. . . Positioning member

56. . . spring

Claims (10)

The invention relates to a rotary head wrench structure, comprising: a wrench head having a U-shaped pivoting portion, wherein the pivoting portion is oppositely provided with a through-hole hole in a perforated shape, and the pivoting portion forms an accommodating space; A driving head has a plurality of driving holes of different sizes and different directions in a sleeve-connected composite state, and a pivot hole is arranged at a center of the driving head; a pivot shaft has a circular diameter larger than a head of the through-shaft hole, and a rod-shaped shaft portion extending from the head portion to the shaft hole, the shaft portion is provided with a cavity for receiving a spring-shaped elastic body and a steel ball-shaped positioning member, the positioning member slightly protrudes The open end of the container hole is elastically clamped with the wrench and can be detached from each other; a ratchet block is provided with a ratchet, the width of the ratchet block is equivalent to the accommodating space; the ratchet block is opposite to the accommodating space The wall surface of the joint is provided with a concave-convex relative inlaid joint structure. The rotary head wrench structure according to claim 1, wherein a free end of the pivoting portion is provided with a groove-shaped custom hole on an end surface of the receiving space; the wall thickness of the ratchet block is set a hole-shaped portion is provided for a positioning device, the positioning device includes a steel ball form standing block member and a spring body of a spring form that pushes the block member, the ratchet block is embedded in the receiving space. The block is elastically snapped onto the custom hole. The rotary head wrench structure of claim 1, wherein the ratchet block and the accommodating space are opposite to the wall of the pivoting portion, and the concave and convex opposing inlaid joint structure is included, and the pivoting portion is opposite to the pivoting portion. a first embedded portion having a circular hole shape is disposed on a wall surface of the central portion of the accommodating space, and the first embedded portion is formed in a cylindrical shape with respect to the first embedded portion of the circular hole shape of the pivoting portion. Mutual card combination. The rotary head wrench structure of claim 1, wherein the ratchet block and the accommodating space are opposite to the accommodating space, and the wall portion of the pivoting portion is provided with a concave-convex oppositely-inserted joint structure, and the pivoting portion is included a convex second engaging portion is protruded from the two sides to the corner of the accommodating space, and the ratchet block is oppositely disposed with the second embedded portion to cooperate with the second embedded portion to form a mutual engagement Stable structure. The rotary head wrench structure according to claim 1, wherein the ratchet block is perpendicularly disposed at a central axial direction of the ratchet, and a shaft portion extending transversely through the cylindrical hole is provided for the shaft portion of the aforementioned pivot shaft. The pivot is connected to the wrench. The rotary head wrench structure of claim 1, wherein the ratchet block is further recessed with a recessed fitting portion on a surface of the pivotal portion of the wrench, the ratchet block being embedded this. The rotary head wrench structure according to claim 1, wherein the ratchet block is provided with a direction control device of the direction control device. The rotary head wrench structure according to claim 1, wherein the ratchet of the ratchet block is further provided with a joint, the joint is a polygonal column structure, and the two ends of the joint middle portion respectively form a plurality of layers. And a single-layered stepped multi-layered carding portion and a single-layered carding portion, respectively, cooperate with the aforementioned ratchet block to cooperate with a driving hole of a different size of the sleeve shape, and near the middle layer of the multi-layered carding portion The end portion forms a flange-shaped retaining edge, and at the central position of the middle portion is further disposed with a hole locating a positioning member in the form of a steel ball and a spring pushing the positioning member to elastically clamp the ratchet wheel The ratchet insider of the block. A rotary head wrench structure includes: a wrench head portion is provided with a pivoting portion, and the pivoting portion is oppositely provided with a through hole hole in a perforated shape at the two free ends, the pivoting portion forms an accommodating space; The head has a plurality of driving holes of different sizes and different directions in a sleeve-connected composite state, and a center of the driving head is provided with a pivot hole; a pivot has a head having a circular diameter larger than the piercing hole, and the head is a rod-shaped shaft portion extending toward the shaft hole, the shaft portion is provided with a container hole for accommodating a spring-shaped elastic body and a steel ball-shaped positioning member, the positioning member slightly protruding the container member The open end of the hole is elastically clamped with the wrench and can be detached from each other; a ratchet block is provided with a ratchet, the width of the ratchet block is equivalent to the accommodating space, and the ratchet block is accessed by the opening of the accommodating space; The wall portion of the pivotal portion opposite to the accommodating space is provided with a concave-convex and oppositely-inserted joint structure, and the first pivoting portion is provided with a circular hole shape on the wall surface at the center of the accommodating space. a portion of the ratchet block relative to the pivoting portion a first embedded portion is formed in the first portion of the first hole, and a convex second portion is protruded from the two sides of the pivoting portion to the accommodating space. The second embedded portion is oppositely disposed to cooperate with the second embedded portion to clamp the connector. The invention relates to a rotary head wrench structure, comprising: a wrench head having a U-shaped pivoting portion, wherein the pivoting portion is oppositely provided with a through-hole hole in a perforated shape, and the pivoting portion forms an accommodating space; A driving head has a plurality of driving holes of different sizes and different directions in a sleeve-connected composite state, and a pivot hole is arranged at a center of the driving head; a pivot shaft has a circular diameter larger than a head of the through-shaft hole, and a rod-shaped shaft portion extending from the head portion to the shaft hole, the shaft portion is provided with a cavity for receiving a spring-shaped elastic body and a steel ball-shaped positioning member, the positioning member slightly protrudes The open end of the container hole is elastically clamped and disengaged from the wrench, and can be detached from each other; a peripheral portion of the inner diameter of the through hole is further provided with a recessed groove-shaped pin portion, and the pin portion is oriented along the through hole hole The pivoting portion is recessed inwardly, and the shaft portion of the pivot shaft is disposed adjacent to the head portion and axially disposed with a latching hole perpendicular to the shaft portion for inserting a fixed rod-shaped stop bolt for the shaft The portion penetrates into the threading hole, and the end of the shaft protruding from the bolt portion is engaged with the locking portion, so that the portion The shaft portion is kept in a non-rotating manner; the open end of the pivot hole of the driving head is provided with a tooth-shaped locking portion, and the positioning member is elastically locked with the locking portion to produce a paragraph-type elastic card.