TWI224538B - Structure improvement on extension bar of tool - Google Patents

Abstract

The present invention relates to a structure improvement on extension bar of tool, wherein an extension bar that is removably engageable with a D-end wrench and a socket has a bottom end defining a receiving space in which a magnetic attraction device is accommodated. The magnetic attraction device comprises a spring, a magnet, and an extendible structure consisted of large, medial, and small tubes telescoping each other. By means of the extendible telescoping structure of the large tube with knurling formed on an outer circumference, a secure coupling can be established between the magnetic attraction device and the extension bar. By means of the removable engagement design of the extension bar, together with socket of different sizes, attraction of a loosened threaded member can be effected, which improves the drawbacks of increased material costs and slow assembling speed occurring in the conventional socket structure which includes a spring and a magnet installed inside the socket to realize attraction of threaded member.

Description

1224538 V. Description of the Invention (1) [Technical Field] The present invention relates to a tool post, especially a magnetic tool post structure with simple assembly. [Previous technology] According to the conventional sleeve structure, when the screwing part is loosened, the screwing part will fall off by itself. This design will cause inconvenience in work. The part can be in an adsorption relationship with the sleeve, so a spring and a magnetic body are provided inside the sleeve to facilitate the loosening of the screwed part, and the magnetically attracted feature of the magnetic body is used to disassemble the screwed part of the screwed loosen. In the sleeve, the advantage of taking out the screwing part at the same time is achieved. Of course, although this method is very convenient, the sleeves have various sizes. In this way, a spring and a magnetic body are provided in each sleeve, which is not economically efficient in terms of cost considerations. The installation of a spring and a magnetic body in each sleeve will also cause the disadvantage of the slow assembly speed of the entire sleeve. For this reason, the industry has also improved the sleeve structure as in Annex 1. Attachment 1 of the concept (Annex 1 is the structure improvement of the socket wrench of Taiwan Patent Bulletin No. 4 8 3 3 6 1), which uses a screw to make the socket in a fixed relationship with the socket wrench. A perforation is provided at the bottom edge of the sleeve. The perforation can be used for a positioning sleeve with a magnetic body inside. In this way, when replacing sleeves of different sizes, it is only necessary to take out the positioning sleeve at the bottom edge of the sleeve. , And then put it into the perforation at the bottom edge of another sleeve to achieve the effect that different sleeves can be used, in order to improve the cost and assembly caused by the need to have a spring and a magnetic body in each sleeve. However, this structure also has the following defects:

1224538 V. Description of the invention (2) The structure of this conventional socket wrench is improved. When using sockets of different sizes, the screws fixing the sockets must be removed first, and then the positioning sleeve at the bottom edge of the sockets must be removed. Taking out and placing the bottom edge of the sleeve of another size, such a complicated replacement procedure will actually lead to the disadvantage of time-consuming and laborious replacement of the positioning sleeve. Then, please refer to Annex II (Annex II is Taiwan Patent Publication No. 4 7 8 4 3 3 "Hand Tool Suction Structure"), which mainly uses a wrench tool, which can be used for open-end wrenches or plum wrenches. And one end of the wrench tool is provided with an accommodating chamber. The accommodating chamber is capable of accommodating a spring and a sleeve body with a magnetic body. Finally, the accommodating chamber of the wrench tool is formed by a stamping process. The abutment edge can prevent the spring and the sleeve body contained in the accommodating chamber from falling off by using the abutment edge; when in use, the wrench tool is put on one end of the sleeve, and the other end of the sleeve is sleeved with a screwing piece. Then use an open-end wrench (or plum wrench) to rotate the wrench tool, so that the sleeve can be loosened together with the screw. When the screw is loose, the cover can be housed with a magnetic body in the room through the wrench. , And achieve the adsorption effect of the screw. Although the conventional hand tool suction tool can use a movable socket wrench tool to achieve the effect of using different sizes of sleeves, this conventional hand tool suction tool requires punching to form the wrench tool to a certain extent. In order to prevent the spring and the sleeve from falling off, it is generally known that the pressure channel under the stamping process is quite large, so if the structure space of the wrench tool housing with a small structure is formed, an abutment edge must be formed, and the control of the mechanical force needs to be special Be careful, if you are not careful, the overall appearance of the wrench tool will be deformed due to the excessive punching pressure or the misalignment of the punching center, which will cause the defect rate of the wrench tool to increase greatly.

1224538 V. Description of the invention (3) There is too much structure to improve it. [Content] The present invention relates to the structural improvement of a tool post, and the structural improvement of the post mainly includes: 〃 A set of posts, one end of the set of posts is provided with a socket, the set has a square hole, the square hole can be used for a D-head wrench sleeve. ^ One end is provided with a square pillar sleeve ， I I, socket 柃 another… card, ^ the bottom edge of the card section and set: = supply; = space content is equipped with a magnetic attraction device; Valley storage workshop, the valley is equipped with a magnetic attraction device, the magnetic attraction The device is a green, small, medium, and small set of empty rolls', a spring sheet, a magnetic body, and a T / body penetrating sleeve structure. The elastic yellow series is housed in a hollow small set. · Fitted on the bottom of the small body, so as to expand and contract again; while the magnetic body is closely fitted with the embossed part, the magnetic device can be connected with the large outer sleeve of the nose, so that the reviewing committee can connect the Bentomin tool : Established relationships: Further understanding, such as the improvement of the structure can lead to the theoretical description:, ' & The structural effect of Ming is a complete device. Socket connection 5 ^ ^ Structural improvement, μ utilizes the adsorption effect of the magnetically loosened screw assembly, ❿ None :: using 'Erda = raw material cost increase and assembly Speed 4 Dagger and -Magnet, So-1224538

Second, the structure of the tool post of the present invention is improved. The sleeves of the same size only need to be sleeved; and: if you do n’t, you can reach different sizes of sleeves. To improve the structure, it is necessary to first set the positioning sleeve in the sleeve 'm ^ tube to another: =: after the loose disassembly, then the laborious disadvantage of the sleeve; the size of the sleeve is the same as above, and the disassembly takes time. Third, the present invention The structure of the tool post is improved, which is: extension; the large outer sleeve embossing part of the outer sleeve is tightly fitted with the socket post. 2 The assembly speed can be greatly improved, and no manual work is required. And the sleeve body is set in the wrench tool ㈣, and then processed into an abutment to prevent the bombardment and the sleeve body from falling off. The expenditure of the processing costs that is derived 丄 At the same time, the use of the punching method is also easy to control the pressure of the pressure channel, which leads to the wrench Disadvantages of structural damage. [Implementation method] The present invention relates to the structural improvement of a tool post. Please refer to the first and second figures. The structural improvement of this tool post mainly includes: ^ set of post (1 0), the set One end of the post (i 〇) is provided with a socket > (1 1), the socket (1 1) is provided with a square hole (χ 2), and the f-square hole (1 2) is provided for one D-head wrench (20) set card; the socket and * (10) the other end is provided with a set of one-shaped post (1 3), the ^ card section (; L 3) is available for a set Tube (3 0) movable sleeve card, and the bottom edge of the sleeve card portion (1 3) is recessed with an accommodation space (i 4), the content of the accommodation space (14) is provided with a magnetic attraction device (4〇); Magnetic attraction device (40), the magnetic attraction device (40) consists of a bomb

Page 8 1224538 V. Description of the invention (5) Spring (4 1), a magnetic body (4 2) and a telescopic structure (4 3): A telescopic structure (4 3) consists of a large body (4 4), the middle sleeve body (45) and a small sleeve body (46) are sleeved through activities, in which the large sleeve body (44), the middle sleeve body (45) and the small sleeve body (46) are hollow, and The large sleeve body (44) and the middle sleeve body (45) are formed at one end with an abutment edge (47), while the other end of the middle sleeve body (45) and the upper end of the small sleeve body (46) are formed with a flange (48) With the setting of the flange (48) and the abutment edge (47), the large, medium and small sleeves (44, 45, 4 6) will not fall off when they are put on, and at the same time have the function of active telescoping; Another small sleeve body (4 6)-one end is tightly fitted with a magnetic body (4 2), and the other end is provided with a spring (41), and finally, an embossed portion (4 4) formed through the outer periphery of the large sleeve body (4 4) 4 9), and the magnetic attraction device (40) and the socket post (10) can be in a fixed relationship. When working in a narrow space or a place with high temperature, set the D-head wrench (20) in the square hole (12) of the socket rod (10), and then use the socket rod (1 0) side. The sleeve part (1 3) is sleeved with the sleeve (30). At this time, the telescopic structure (4 3) of the bottom edge of the sleeve (10) is convex (shown in the third figure). When the sleeve (30) is engaged with the screwing member (50), the telescopic structure (43) is inwardly contracted by the screwing member (50), as shown in the fourth figure. , And the magnetic body (4 2) contained in the bottom end of the small sleeve body (4 6) will have an adsorption relationship with the screwing member (50), so when the screwing member (50) is loosened and disassembled, Then, by using the magnetic body (4 2) provided by the magnetic attraction device (4 0), the screwed part (

1224538

V. Description of the invention (6) 0) Adsorbed in the sleeve (30) Dropped in a small space or high temperature

The present invention utilizes a magnetic attractor), which can be movably connected to the socket head (10) of the D-head wrench type, that is, the magnetic screwing part (50) of the socket head (1 0). The adsorption effect needs to be tightly matched with each size of the sleeve (30. The cost increase and the time-consuming assembly of the shortcoming 0) are tightly matched with the large sleeve body (4 4) and the post (4 0). In addition, the cost of the fifth to seventh rods (1 0) is reduced to the lowest part (1 3). The bottom edge is provided with a receptacle 1 4), and then a magnetic body (50) is tightly fitted. Decrease in adsorption efficiency 'At the same time, the group of structural elements described above is only for the purpose of solving the intention to make any similarity to the present invention, which should be included in the summary of what the present invention intends to protect' The tool of the present invention is practical and cost-effective, without the effect of the working environment of the screwed part. The sleeve (10) of the device (40), so that only the sleeve can be used for different sizes of sleeves (30) suction device (40) can be used to achieve screw loose, without the need for a conventional sleeve The tube structure is caused by a spring and a magnetic body. At the same time, the magnetic suction device (4 embossing part (4 9) on the outer periphery) of the invention and the speed and product success rate of the set are more practical. Shown 'where the present inventor has made a socket for the socket' in the socket space (1 4) of the socket post (1 0), and the accommodation space ((42) 'in this way, except that the screw can be reached in the structural element The cost can be significantly increased in terms of installation speed. The preferred embodiment of the present invention is not a limitation of the formula, but any modification or change in the invention is still in scope. Structure of the post The improvement in structural design is indeed in line with the development of the industry

Page 10 1224538 V. Description of the invention (7) Needs, and the disclosed structural invention also has an unprecedented innovative structure, so its "newness" should undoubtedly be considered, and the invention can be more effective than the conventional structure. It is also "progressive", which fully complies with the requirements of the patent law on application requirements for invention patents in China. It has filed a patent application in accordance with the law, and invites the Bureau to review it and give it affirmation.

1224538 The diagram simply illustrates the preferred embodiment of the present invention, which can be explained in detail, so that the review committee understands it. Among them: A. Description of the main component symbols: 10 ---- sleeve post 1 2 ---- square Hole 14 ---- accommodation space 3 0 -one-to-one sleeve 4 1 ---- spring 4 3 — _ —— telescopic structure 4 5 ---- middle sleeve body 4 7 ---- butting edge 4 9 ---- Embossed part B, description of drawing numbers: The first picture is the knot of the tool post of the present invention, the second picture is the knot of the tool post of the present invention, and the third and fourth pictures are the fifth of the tool post of the present invention. Figures are the intent of the tool post of the present invention; and Figures 6 and 7 are schematic diagrams of the tool post of the present invention. The present invention can be further improved in accordance with the attached drawings. 1 ---- Socketing section 3 ---- Clamping section 〇 One one one D head wrench 0 One one magnetic attraction device 2 ———— Magnetic body 4 ---- Large cover body 6 ---- Small cover body 8 —One one _ flange 0 _ _ — An exploded schematic diagram of the improvement of a screw fitting; the partial enlargement of the improvement is not intended, the structure Schematic diagram of improved operation; Decomposition of improved second embodiment shows the structure of the second embodiment

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Claims (1)

1224538 1224538 6. There is a magnetic body in the scope of patent application. Through the tight fitting method, the assembly of the magnetic body and the socket can be made simpler, and the structure cost of the socket can be made by the simplified magnetic structural components. Significantly reduced efficacy. Page 14