TWI885955B - Torque sleeve structure - Google Patents

Abstract

The present invention relates to a torque sleeve structure, which is composed of a shaft, an adjustment piece, a shaft barrel and an outer sleeve, and the threaded section of the adjustment piece is screwed into the corresponding inner threaded hole of the shaft shaft section, so that the push-pull section of the adjustment piece can resist and expand each contact section of the shaft section, and then the contact section and the corresponding inner ring surface of the shaft barrel are naturally The friction resistance is formed, thereby achieving the expected torque setting purpose; wherein, a deep hole is set at a suitable position of the shaft center shaft section, and an elastic body and a friction member for sound generation are respectively placed therein, so that the friction member can constantly contact the opposing annular teeth provided at the corresponding position of the shaft barrel, thereby becoming the source of the warning sound of the torque sleeve when it is used.

Description

Torque sleeve structure

The present invention is related to a torque sleeve structure, and more specifically, it particularly refers to a novel invention that can significantly reduce the number of components and processing steps, while still being able to achieve the expected torque adjustment setting function and effectively and significantly reduce the manufacturing cost.

According to the present invention, the "torque sleeve" refers specifically to the specific torque sleeve products described in the three new patents No. M522105, No. M551552 and No. M598760 in this country. Regardless of the additional functions added to each of them, the basic components of the three patents are very similar. The basic components are summarized based on the general description and drawings of the patent No. M598760.

Yes, it can be known from the contents of the patent bulletin of the prior known patent that the shaft shaft cooperates with the adjusting piece to form a tight contact with the corresponding inner ring circumference of the shaft barrel, and the screw-in depth of the adjusting piece is used as the basis for setting the torque value. Afterwards, it uses multiple components such as an elastic body, a movable ratchet, a fixed ratchet, two limit pins and two positioning pins to form the warning sound source of the torque sleeve (i.e., the mutual friction sound of the corresponding ratchet parts of the movable ratchet and the fixed ratchet). Therefore, regardless of the complexity of the design of the movable ratchet or fixed ratchet components, and the corresponding pin hole processing steps that must be applied to the shaft and the shaft, I believe that anyone will be able to easily infer and see the complexity of its structural design, the difficulty of processing and assembly, and the inevitable high manufacturing cost burden. In short, although this specific "torque sleeve" has a certain degree of practicality, it still needs to be improved and optimized.

Therefore, in view of the above facts, the inventor has actively invested in research and development based on his many years of practical experience in this industry, so that this invention can be launched early; therefore, it mainly performs a small amount of processing on the existing basic components, and then uses relatively simple friction parts to achieve the expected sound effect, ultimately completely reducing the components and greatly reducing the manufacturing, processing and assembly costs, making it more industrially applicable and obtaining the best economic benefits, which is the main invention purpose of this invention.

Yes, it is composed of a shaft, an adjustment piece, a shaft barrel and an outer sleeve, and the threaded section of the adjustment piece can be screwed into the corresponding inner screw hole of the shaft core section, so that the push-pull section of the adjustment piece can resist and expand the contact slices of the core section, and then the contact slices and the corresponding inner ring circumference of the shaft barrel naturally form friction resistance, thereby achieving the expected torque setting purpose; wherein, a deep hole is set at a suitable position of the shaft core section, and an elastic body and a sound-generating friction piece are respectively placed therein, so that the friction piece can constantly contact the opposite annular teeth set at the corresponding position of the shaft barrel, thereby becoming the source of the warning sound of the torque sleeve when it is used.

10: Shaft

11: flange

12: Plug-in section

13: Through hole

14: Internal thread hole

15: mandrel section

151:Deep hole

152: Elastic body

153: Friction parts

16: Cut ditch

17: Contact Slice

20: Adjustment parts

21: Threaded section

22: Push and pull section

23: Adjustment hole

30: shaft barrel

31: Screwdriver bit slot

32: Micropyle

33: Top bead

34: Tube spring

35: Shaft hole

36: Ring teeth

40: Outer casing

Figure 1: A disassembled three-dimensional diagram of a preferred embodiment of the present invention.

Figure 2: A view from another direction of the preferred embodiment shown in Figure 1.

Figure 3: A combined cross-sectional view of the preferred embodiment shown in Figure 1.

Figure 4: A three-dimensional diagram of the combination of the preferred embodiment shown in Figure 1.

Figure 5: An exploded perspective view of another preferred embodiment of the present invention.

Figure 6: A combined cross-sectional view of the preferred embodiment shown in Figure 5.

In order to further understand the technical means and features of the present invention, it is described in detail below with some diagrams:

First, please refer to the first, second, third and fourth figures, which are a preferred embodiment of the present invention. As can be seen from the figure, it includes: a shaft 10, the middle section of which has an outward flange 11, one end of which is a plug-in section 12 for plugging with a power tool (not shown) and transmitting power, and the other end is a mandrel section 15 with a through hole 13 and connected to an internal threaded hole 14, and the end of the mandrel section 15 is provided with three grooves The upper cutting groove 16 makes the end portion become a multi-piece contact section 17; an adjusting member 20, having a threaded section 21 and a push-pull section 22, is screwed into the inner threaded hole 14 through the through hole 13 of the core shaft section 15 of the shaft 10, and the screw-in depth can be adjusted by the function of the adjusting hole 23, so that the push-pull section 22 can press each contact section 17 to make it expand appropriately correspondingly; a shaft barrel 30, one end of which is a screwdriver head The slot 31 is provided with a bead hole 32 for matching a top bead 33 and a tube spring 34 for inserting and using a screwdriver head (not shown in the figure), and the other end is provided with an axial hole 35 for inserting and connecting the core shaft section 15 of the shaft rod 10. In this way, each contact section 17 will naturally form a close contact with the corresponding inner ring circumference of the axial hole 35. Then, a ring is appropriately opened at the open end of the axial hole 35. The outer sleeve 40 is covered on the outer periphery of the shaft 30 to protect the overall structure. However, the feature is that a deep hole 151 is provided at a suitable position of the central shaft section 15 of the shaft 10, and an elastic body 152 and a friction member 153 for sound generation are respectively placed therein, so that the friction member 153 can constantly contact the ring tooth 36 provided at the corresponding position of the shaft 30, thereby becoming the source of the warning sound during use.

Therefore, in actual normal use, when the output power or force exceeds the torque setting value, the shaft 10 and the shaft cylinder 30 will form an idle rotation, so that the friction member 153 that moves synchronously with the shaft 10 will produce the expected continuous friction sound with the annular tooth portion 36 located on the shaft cylinder 30, thereby achieving the expected purpose. As for using the push-pull section 22 of the adjustment member 20 to push the contacting slice 17 to make it expand relatively appropriately, and then generate different degrees of tightening force between the corresponding parts of the shaft tube 30, so as to achieve the so-called torque adjustment setting purpose, it is a common existing technology. We can easily see many equivalent design items in other products. It is really not the feature that the present invention should appeal to, so it will not be elaborated. Please understand.

Accordingly, please refer to the fifth and sixth figures, which are another preferred embodiment of the present invention. As can be seen from the figure, the deep hole 151 is set at a suitable position of the flange 11 of the shaft 10, and the elastic body 152 and the friction member 153 are inserted axially. After that, the opposite annular teeth 36 are set at the corresponding axial position of the axial hole 35 of the shaft cylinder 30 to obtain the same expected performance.

In summary, this invention is a highly technical creation based on previous creations and further optimized by using natural laws. It has met the patent requirements for inventions and should be protected by relevant patent laws. Therefore, an application is filed in accordance with the law.

10: Shaft

11: flange

12: Plug-in section

15: mandrel section

151:Deep hole

152: Elastic body

153: Friction parts

16: Cut ditch

17: Contact Slice

20: Adjustment parts

21: Threaded section

22: Push and pull section

30: Shaft Cylinder

32: Micropyle

33: Top bead

34: Tube spring

36: Ring teeth

40: Outer casing

Claims (1)

A torque sleeve structure includes: a shaft, the middle section of which has an outward flange, one end of which is a plug-in section, and the other end of which is a mandrel section with a through hole and connected to an internal threaded hole, and the end of the mandrel section is provided with more than three cutting grooves, so that the end becomes a multi-piece contact section; an adjustment piece, which has a threaded section and a push-pull section, is screwed into the internal threaded hole through the through hole of the shaft mandrel section, and the screw-in depth can be adjusted by the function of the adjustment hole, so that the push-pull section can press each contact section to make it perform a corresponding appropriate outward expansion action; a shaft barrel, one end of which is a screwdriver head slot, and a bead hole is provided for matching A top ball and a tube spring are set, and the other end is provided with an axial hole for the insertion and docking of the shaft core shaft section. In this way, each contact slice will naturally form a close contact with the corresponding inner ring circumference of the shaft hole. Afterwards, a ring tooth portion is opened at a suitable position at the open end of the shaft hole; an outer sleeve is covered on the outer circumference of the shaft tube to form a protective overall structure; its characteristics are: a deep hole is set at a suitable position of the shaft core shaft section, and an elastic body and a friction member for sounding are respectively placed therein, so that the friction member can constantly contact the opposite ring tooth portion set at the corresponding position of the shaft tube, thereby becoming the source of the warning sound during use.

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