TWI556917B - Combination structure of ratchet wrench and tool for driving and stopping a driving mechanism - Google Patents

Description

Combination structure of ratchet wrench and turning brake tool

The present invention is a hand tool, and more particularly a combination of a ratchet wrench and a turning brake tool that can loosen or tighten a workpiece in a narrow space.

According to the press, many workpieces are locked in a narrow space, and it is difficult for a general ratchet wrench to extend into a narrow space to tighten or loosen the workpiece. In this regard, there are a variety of conventional ratchet wrenches having double ratchets, and a variety of drive mechanisms are used to drive one of the ratchets to drive another ratchet to rotate, thereby tightening or unscrewing in a narrow space. The effect of the workpiece.

However, the contact area of the conventional ratchet wrench with the ratchet wheel is limited, affecting the transmission effect of the force applied by the user, in other words, the torque provided by the ratchet wrench is relatively limited.

Secondly, the conventional ratchet wrench is difficult to further turn the workpiece to the tightest when the workpiece is rotated tightly. The first reason is that the tool is usually small in size, and the user usually only grips the tool with a few fingers. To drive the ratchet rotation, the torque that the wrench can give is quite small, and it is difficult to further rotate the workpiece to the tightest; secondly, the driving mechanism of the ratchet wrench cannot be temporarily fixed, and the drive mechanism and the ratchet will remain In the rotatable state, the user cannot grasp the wrench and directly move the workpiece like a normal wrench.

The main object of the present invention is to provide a ratchet wrench and a turning brake tool In the combined structure, the driving mechanism of the ratchet wrench can be restrained by the turning brake tool and can not be rotated temporarily, thereby allowing the user to hold the ratchet wrench in one hand to tighten or loosen the workpiece.

To achieve the above object, the combination structure of the ratchet wrench and the turning brake tool of the present invention comprises a ratchet wrench body, a driving mechanism and a turning brake tool.

The ratchet wrench body surrounds an accommodation space.

The driving mechanism is disposed in the accommodating space, and the driving mechanism includes a plurality of rotating members.

The cranking brake tool includes a handle portion, a first operating portion and a second operating portion. The first and second operating portions are respectively disposed at two ends of the handle portion, and the first operating portion is opposite to the handle portion Adjusted between a first position and a second position.

Wherein, when the first operating portion is in the first position, one of the first and second operating portions is rotated to drive the rotating members to rotate synchronously, and when the first operating portion is in the second position, the first and the first The two operating portions are located on the same side of the handle and are simultaneously clamped to the two rotating members, so that the turning brake tool restricts the rotation of the driving mechanism.

According to the present invention, the rotating member can be operated by the turning brake tool to move the workpiece, so that the present invention can be applied to a narrow space. When the user wants to loosen the workpiece at the beginning or finally tighten the workpiece, the driving mechanism can be restrained by the turning brake tool, whereby the workpiece can be driven by a large torque and rotated tightly. Or it is loosened to overcome its maximum static friction.

In the following, the structural features of the present invention and the intended effects thereof will be described by way of an example, and are not intended to limit the scope of the invention as claimed.

Referring to FIG. 1 to FIG. 3 , the combination structure of the ratchet wrench and the turning brake tool of the present invention comprises a ratchet wrench body 10 , a driving mechanism and a turning brake tool 30 .

The ratchet wrench body 10 defines an accommodating space. The ratchet wrench body 10 further includes a first end 12 , a second end 13 , a top surface 14 , and a bottom surface 15 . The top surface 14 defines a plurality of through holes, and the bottom surface 15 defines a plurality of through holes.

The driving mechanism is disposed in the accommodating space, and the driving mechanism includes a plurality of rotating members. In this embodiment, the rotating members include a plurality of first rotating members 21 and at least two second rotating members 22. A plurality of teeth are arranged around the outer circumference of the first rotating member 21. Similarly, the outer circumference of the second rotating members 22 is also provided with a plurality of teeth. The two second rotating members 22 are simultaneously meshed with the two first rotating members 21, that is, the two rotating members 22 are arranged perpendicular to the direction in which the first rotating members 21 are arranged. The second rotating member 22 is disposed between the two first rotating members 21 at the same time, and simultaneously meshes with the two first rotating members 21, and the two second rotating members 22 are kept at a distance from each other without being meshed together. The second rotating member 22 can provide a contact area of the two first rotating members 21 to be larger than a contact area of the two first rotating members 21.

Preferably, the two second rotating members 22 are meshed side by side with the two first rotating members 21 adjacent to the first end 12. In this embodiment, the first rotating member adjacent to the first end 12 is a ratchet, and the two second rotating members 22 are side by side. The ratchet is engaged with one of the first rotating members 21. Wherein, the driving mechanism further includes two second rotating members 22, and the two second rotating members 22 are meshed side by side with the two first rotating members adjacent to the second end 13 , wherein the second end 13 is adjacent to the second end 13 The first rotating member is also a ratchet, and the two second rotating members 22 are engaged with the ratchet and one of the first rotating members 21 side by side.

The top of each of the first rotating members 21 (including the two ratchets) corresponds to one of the through holes, and the top of each of the first rotating members (including the two ratchets) forms a first recess 211, and the contour of the first recess 211 is formed. There are a plurality of blocks, whereby the tops of the first rotating members 21 (including the two ratchets) have the function of a wrench. The bottom of each of the first rotating members 21 (including the two ratchets) corresponds to one of the through holes.

The bottom of each of the first rotating members 21 (including the two ratchets) corresponds to one of the through holes. In this embodiment, a second recess 212 is recessed in the bottom of each of the first rotating members 21 (including the two ratchets). The contour of the second groove 212 is formed with a plurality of teeth, as shown in FIG. 4, whereby the bottom of each of the first rotating members 21 (including the two ratchets) has a function of a wrench and can be used for arranging a workpiece. For example, the hex nut shown in Figure 5. In other embodiments, the first rotating members adjacent to the first and second ends 12, 13 are respectively a ratchet, and a set of joints (not shown) protrudes from the bottom of each ratchet, and the sleeve protrudes. The through hole is provided with a sleeve mounted thereon.

In other embodiments, the four second rotating members 22 can be directly replaced by the two first rotating members 21, that is, all the first rotating members 21 (including the two ratchets) are rotatably supported one by one. Ordering. In other embodiments The rotating member includes only the first rotating member of the two ratchets, and the rotating member may further include a belt or a chain, and the belt or the chain is rotatably disposed on the first transmission of the two ratchets. Between pieces.

The cranking brake tool 30 includes a handle portion 31, a first operating portion 32 and a second operating portion 33. The first and second operating portions 32, 33 are respectively disposed at two ends of the handle portion 31. An operating portion 32 is adjustable relative to the handle portion 31 between a first position and a second position. In this embodiment, the adjustment manner of the first operating portion 32 is oscillated about a rotating shaft 34 relative to the shank portion 31 between a first position and a second position, and the axis direction of the rotating shaft 34 is perpendicular to the shank portion 31. The direction of the axis, as shown in Figure 1. In other embodiments, the first operating portion 32 is adjusted to rotate about a first position and a second position about the axis of the handle 31. The second operating portion 33 is fixed to the other end of the shank portion 31. The extending direction of the second operating portion 33 is perpendicular to the extending direction of the shank portion 31. In other embodiments, the second operating portion 33 can also be rotated or rotated to adjust the position relative to the handle 31 as in the first operating portion 32. However, in actual use, the second operating portion 33 is fixed to the handle. 31 is better. The first and second operating portions 32 and 33 respectively form a non-circular tool head 321 and 331 away from one end of the shank portion 31. The inner portions of the rotating members are respectively formed with a corresponding shape corresponding to the tool heads 321 and 331. 213. Preferably, each of the tool heads 321 and 331 has a polygonal shape, and the contour of each of the recessed grooves 213 is polygonal in shape corresponding to each of the tool heads 321 and 331. In the embodiment, the recessed groove 213 is hexagonal. The polygonal tool head 31 is also hexagonal, as shown in FIGS. 1 and 3.

Of course, any one of the first rotating members 21 can be a ratchet, and any of the first rotating members in the ratcheting manner has the above-mentioned structure of the groove 213 and the second groove 212, and is located at the middle of the driving mechanism. A rotating member 21 is also a ratchet. It is worth mentioning that the top and bottom of the first non-ratsal first rotating member may not correspond to any perforations or through holes at all, and are simply used as power transmission elements.

The invention mainly provides two second rotating members 22 arranged side by side and not in contact with each other between any two first rotating members, and the contact area between the two second rotating members 22 and the two first rotating members is greater than the second a contact area when a rotating member is in direct contact, whereby the effect of the second rotating member 22 transmitting the force of one of the first rotating members to the other of the first rotating members is better than when the first rotating members are in direct contact The force transmission effect achieves the effect of increasing the torque value that the driving mechanism can output. Especially when the second rotating member 22 is disposed between the ratchet and one of the first rotating members 21, the torque value is particularly improved. Of course, if a pair of second rotating members 22 arranged side by side are added between every two first rotating members, the torque value that the driving mechanism can output can be optimized.

Referring to FIG. 1 , when the workpiece is turned by the first step, the first operating portion 32 of the turning brake tool 30 is first swung to the first position, so that the first and second operating portions 32 , 33 are located. On the opposite side of the handle 31, one of the first and second operating portions 32, 33 can be rotated to drive one of the ratchets to rotate, the ratchet further drives the remaining rotating members to rotate synchronously, and the other ratchet finally rotates synchronously. And to achieve the effect of driving the rotation of the workpiece.

Referring to FIG. 4 and FIG. 5, when the workpiece is screwed to a certain extent, the driving mechanism will have difficulty in continuously tightening the workpiece, and the user can swing the first operating portion 32 of the turning brake tool 30 to the second position. The first and second operating portions 32, 33 are located on the same side of the handle portion 31, and the first and second operating portions 32, 33 are simultaneously clamped to the two rotating members, so that the turning brake tool 30 is restricted. The driving mechanism is used to make the driving mechanism completely non-rotatable, whereby the user can directly grasp the entire ratchet wrench body 10 to manually rotate the workpiece, and the workpiece can be driven by a large torque to be rotated most It is loosened or tightened to overcome its maximum static friction.

In summary, the combination structure of the ratchet wrench and the turning brake tool of the present invention is not only structurally innovative, but also has a progressive effect, conforms to the relevant provisions of the patent law, and is filed in accordance with the law, and the Office of the State Council grants a patent as soon as possible. Will.

10‧‧‧ Ratchet wrench body

12‧‧‧ first end

13‧‧‧ second end

213‧‧‧Inlay

22‧‧‧Second rotating parts

30‧‧‧Turn brake tool

14‧‧‧ top surface

15‧‧‧ bottom

21‧‧‧First rotating parts

211‧‧‧First groove

212‧‧‧second groove

31‧‧‧ handle

32‧‧‧First Operation Department

321,331‧‧‧Tool head

33‧‧‧Second Operations Department

34‧‧‧ shaft

Figure 1 is a perspective view of the present invention.

Figure 2 is an exploded view of the toggle brake tool of the present invention.

Figure 3 is a top plan view of the ratchet wrench of the present invention.

Figure 4 is a perspective view of the toggle brake tool of the present invention confining the rotation of the drive mechanism.

Figure 5 is a perspective view of the turning brake tool of the present invention restricting rotation of the drive mechanism.

10‧‧‧ Ratchet wrench body

21‧‧‧First rotating parts

31‧‧‧ handle

32‧‧‧First Operation Department

321,331‧‧‧Tool head

33‧‧‧Second Operations Department

Claims (6)

The utility model relates to a combination structure of a ratchet wrench and a turning brake tool, comprising: a ratchet wrench body, which surrounds an accommodating space; a driving mechanism is disposed in the accommodating space, the driving mechanism comprises a plurality of rotating parts; The tool includes a handle, a first operating portion and a second operating portion. The first and second operating portions are respectively disposed at two ends of the handle, and the first operating portion is opposite to the handle Adjusting between a position and a second position; wherein, when the first operating portion is in the first position, one of the first and second operating portions is rotated to drive the rotating members to rotate synchronously, the first operating portion When the second position is located, the first and second operating portions are located on the same side of the handle and are simultaneously clamped to the two rotating members, so that the turning brake tool restricts rotation of the driving mechanism; wherein the first operation The portion is rotatable about a first center position and a second position about the axis of the handle. The combination structure of the ratchet wrench and the turning brake tool according to claim 1, wherein the first and second operating portions respectively form a non-circular tool head away from one end of the handle, and the inner portions of the rotating members are respectively A groove having a shape corresponding to the tool head is formed. The combination of the ratchet wrench and the turning brake tool according to claim 2, wherein each of the tool heads has a polygonal shape, and the contours of the respective grooves are polygonal corresponding to the respective tool heads. The combination structure of the ratchet wrench and the turning brake tool according to claim 1, wherein the first operating portion is swingable relative to the handle between a first position and a second position about a rotating shaft, and the axis direction of the rotating shaft It is perpendicular to the axis of the handle. The combination structure of the ratchet wrench and the turning brake tool according to claim 1, wherein the second operating portion is fixed to the other end of the handle, and the extending direction of the second operating portion is perpendicular to the extension of the handle direction. The combination structure of the ratchet wrench and the turning brake tool according to claim 1, wherein the rotating members comprise a plurality of first rotating members and at least two second rotating members, and the plurality of teeth are arranged on the outer circumference of the first rotating members. And a plurality of teeth are arranged on the outer circumference of the second rotating member, and the two second rotating members are meshed with the two first rotating members side by side.