TWI231249B - Simple ratchet wrench - Google Patents

Abstract

The present invention provides a simple ratchet wrench, comprising: a wrench body having a head forming a containing space and a throat defining a containing slot, wherein the containing slot and the containing space communicate with each other and a through hole communicating the containing slot is defined in a spoke area of at least one surface of the wrench body; a claw piece having a plurality of teeth and forming a curved face on one end and having a locking bar on the other end, the claw piece being disposed in the containing slot of the wrench body in a manner of being slidable with respect to the containing slot; an resilient member having a first end and a second end wherein the first end is fit over the locking bar of the claw piece; a fixing piece extending through the through hole of the wrench body and the second end of the resilient member to retain the resilient member securely in the containing slot; a thorn piece set with a plurality of teeth engageable with the teeth of the claw piece and the thorn piece is rotatably received in the containing space of the wrench body.

Description

1231249 V. Description of the invention (1) [Field of the invention] The present invention relates to a wrench, especially a simple ratchet wrench. [Practical background note] a Press, please refer to Annex I. This is a patent case of the Republic of China Patent Bulletin No. 335 750 "Simple Structure of Two-Way Ratchet Wrench". The pre-patent case of this practice requires an additional 50 bases. The edge protrusion is provided with a convex column 51 and a perforation B. The structure is quite complicated and difficult to process, and it is not suitable for closed small-diameter grooves. If this structure is used for a wrench of 8mnl, the processing of the base block 50 will be more complicated. It is difficult and has no industrial applicability. The clamping between the base block 50 and the small-diameter groove A is obtained by inserting the protruding pillar 51 protruding from the bottom edge of the base block 50 into the positioning recess 34 at the bottom of the small-diameter groove A, and then positioning A top cover 38 covers and closes the small-diameter groove A, so that the top edge of the base block 50 is restricted and does not come off the small-diameter groove A. And the matching of the base block 50 and the small-diameter groove a can only be applied to the small-diameter groove A that is hollow, and it needs to be closed by another cover 38. The torque value it bears is quite limited and it is easy to burst. The perforation B provided on the base block 50 is provided for the elastic body 60 to pass through. The elastic body 60 is inserted through the perforation b and abuts against the wall surface of the small-diameter groove A. This design adds the elastic body 6 〇 set length, and the cooperation between the base block 50 and the latch 40 does not have the function of preventing seizure, this practice

The wrench structure has many disadvantages in operation and use, and it is necessary to improve it. Therefore, in order to solve this problem, the inventor is determined to rely on his many years of experience in the manufacture and development of a wrench, hoping to create a practical invention. After many developments and improvements, he finally carefully designed the invention and applied it. Designed the "simple ratchet wrench" of the present invention, which can completely overcome the production of conventional wrenches

♦ 1231249 V. Description of the invention (2) The lack of all births is a very progressive invention. [Objective of the present invention] The object of the present invention is to provide a simple ratchet wrench, which fixes the fixing member to the perforation of the wrench body, and can limit the elastic body in the accommodation groove to the fixing member and the ratchet block. In the meantime, the elastic body has no displacement, and the design is very simple. [Strong and reliable structure, and assembly; disassembly can reduce the processing procedures, effectively reduce the cost of production and production, and at the same time have the dual indication of the direction of triggering and anti-seizure Efficacy is really a design with industry 1 utilization and progress. Eight

L do n’t like it. Bing Shenming Ming J. Regarding the technology, means and effects used in the present invention, a preferred embodiment is described in detail below with reference to the illustration;-Please refer to Figures 1 to 8 for details. The present invention is a structure of an embodiment selected by the present invention, which is for illustration purpose only, and the structure is limited in the patent application. As shown in the second figure, the present invention relates to a simple wrench, which includes: a φΙ 知 hand body 10; a head 11 at one end of the wrench body 10 is provided with a circular receiving space 12; One end of the inner edge wall surface of the installation space 12: Yes-convex ring edge 121 'The other end of the inner edge wall surface is provided with a concave ring, two poems / a half-moon-shaped receiving groove is provided at the throat of the wrench body 10 10 ::: The receiving groove 13 is connected to the receiving space 12, and a perforation 15 connected to the receiving groove 13 is provided in the longitudinal direction of the spanner body 14 of the wrench body. The spoke area 1 of the other side of the hand body 10 is 6 series. For leveling without holes;

Page 6 1231249

Ratchet block 20 8 丨, Bu Guoguan & u goods' Figure 1 Figure Echinococcus 21, one end of block u ^ 20 is provided with a curved surface 22, and the other end of ratchet block 20 is two pillars 23, the A recess 231 is formed at one end of the card post 23, and the spine has a card inserted into the receiving groove 13 of the wrench body 10, and can be slid in a relation with the receiving pin; U generates an elastic body 30, which The elastic body 30 has first ends 31 and 32. The first end 31 and the second end 32 of the elastic body 30 are bent and angled. The first end 31 of the elastic body is sleeved on the ratchet block 20. Column 23; ❹ a fixing member 40, which is a pin body at one end and the pressing portion 41 in the preferred embodiment, the fixing member 40 can be threaded through the wrench body 10 / perforation 15 And the second end 32 of the elastic body 30, so that the elastic body 30 can be stably set in the accommodating groove 13 by the limit of the fixing member 40, and the embossing part 41 of the fixing member 40 is a latch The perforation 15 of the wrench body 10 enables the fixing member to be fastened to the wrench body 10 without falling off;

A ratcheting member 50 is provided with a plurality of ratchets 51 on the outer side wall of the ratcheting member 50, and a groove 52 and an inner constriction are respectively ringed on both sides of the ratchet tooth 51 relative to the ratcheting member 50. The locking portion 53 is provided with a polygonal braking groove 54 on the inner side wall surface of the ratcheting member 50 in the preferred embodiment. A convex ring edge is provided at the sharp corner of the braking groove 4 so that The head of the screw member can be more easily inserted into the braking groove 54 without deformation. A c-shaped buckle 55 can be inserted into the groove 52, and then the ratchet member 50 is placed in the head u of the wrench body. In the space 12, at this time, 'the ratchet member 50 is made by the top of the flange 12m of the wrench body 10 and does not fall down, and the c-shaped buckle 55 which is set in the groove 52 is caught in the wrench The concave ring groove 122 of the main body 10 allows the ratchet member 50 to rotate.

Page 7 V. Description of the invention (4) Combined in the accommodation space 12 of the wrench body 10; The plate movement status indicates' please pay special attention to it, because the elastic ratchet block is set to a limit, so the ratchet block can be used for force 2 0-The end ratcheting member 50 can be easily pulled due to the torsion by the top of the arc surface 22 of the ratchet-the picture is please! The third and fourth pictures are shown in the figure of the present invention: The direction of the hand indicates the bolt Acting direction of the ratchet block 20 in the second set groove 13 is actuated 20 °. One end 31 is sleeved on the post 23 of the ratchet block 20, and the second end 32 of the elastic body 30 is fixed by the fixing member 4. In other words, the elastic body 30 fixedly provided in the accommodation groove 13 can provide a curved surface 22 of the spring to be pressed on the inner wall surface of the accommodation groove 13 so that the ratchet teeth 21 and the ratchet on the ratchet member 50 The teeth 51 spit with each other, = =? The ratchet block 20 is locked and cannot be rotated, and the 4 5 ^ it bears will be transmitted to the ratchet block 20 by the ratchet block in the valley groove 13 Absorbing force on the wall and giving it to the turn screw will cause tooth loss. The ratchet wrench is therefore # = See the fifth figure. The ratchet block shown by the solid line in the figure is rusted because of rust. Cause Ratchet 50 and ratchet block 20 are stuck to each other

= When the two ratchet wrenches continue to rotate, the ratchet block 20 will be forced to move to the right and the elastic body 30. When the ratchet block 20 is moved to the right for a distance, the ratchet block 20 will be. 3 会 @ and the fixing member 40 are made against each other, and because the recess at the 23-end of the card column can be surrounded by the periphery of the fixing member 40, the card column 23 does not cause relative slippage with the fixing ^ 40, so that The ratchet block 20 is moved to the right again due to the limit of the fixed member. When the ratchet block 20 cannot move due to the limit of the fixed member 40 and the moving member 50 continues to rotate, the ratchet block will be forced. 20 is disengaged from the ratchet member 0 ′ as shown by the dotted line in the figure, and the ratchet wrench is returned to the normal state while 1231249

V. Description of the invention (5) Can be used continuously; Yu Zhaoxun: The sixth piece A and Six B show 'the fixing piece 40 is formed by a perforation 15' which is connected to the rim area spoke area 14 by the fixing piece 40. It is set at 1 °; there is a special mark on the door, and because of the relationship between the ratchet block 20 and the capacity of the person, please refer to Figure 6A. The extension of the screw when time is turned; as shown in Figure 6B, and the flatness does not have a special marking mark-the surface can be turned reversely when the screw is turned. The user can obtain it by identifying this mark: because of the trick: the reverse side is also obtained. Knowing the direction of the wrench, the direction of the wrench is completely wrong. You need to turn the wrench and then put it on the tired part to perform the switch. This can greatly save the operation time, and you do n’t need to process it separately. Reducing the process of processing and reducing the cost of producing clothes is a design with great industrial applicability; please refer to the seventh figure, which is the second embodiment of the present invention. A through hole 17 is formed on both sides of the spanner body 10, and both ends of the fixing member 40 are provided with pressure. The part 41, 俾, and the solid J piece 40 can be fastened and combined with the through hole 17 of the spanner of the wrench without a hole. Moreover, since the through hole 17 is provided with the wrench body 10-the face margin area 14, more =, The through-hole 17 is formed on the left side of the spanner body 16 on the other side of the wrench body 10, and because it is formed at different positions on both sides of the wrench body 10, the user can immediately recognize this through-hole 17 at a glance. The special marking mark formed by the fixing piece 40, and knowing the direction of turning of the wrench, please refer to figure 8A, so the user can recognize that the marking mark is formed on the wrench body 10-face margin area 14 is more than the right side, knowing that it can turn the screw clockwise, please 1231249

Description of the invention (6): = No 'If the mark is formed on the wrench body, the other part is on the left side, the user can know that it can be reversed by turning the screw. The mark can be identified on the left and right sides of the frame. Direction of the positions on both sides: the front and the back of the hand. At the same time, you know that the wrench is turned. 1: 1 ?: The wrench is turned in the wrong direction and needs to be re-operated. / The effect achieved is exactly the same as the first. Examples. According to the above description, the "simple ratchet strokes of the present invention. 2 The traditional structure has more enhanced effects, and the design of this case with = /, usability, will be discussed as follows: eight (1) · the present invention "Simple ratchet wrench: It is combined with the wrench body through 1, which can accommodate the groove; also between the fixed part and the ratchet block, the elastomer does not have any possible jumping design. The design is very simple and strong and reliable. , 1 is equipped with ί plus: ϊϊ ί, which effectively reduces the cost of production, and has the dual effect of preventing and jamming at the same time. It is-very productive. (2). The "simple ratchet wrench" of the present invention ”, When 2 pulls“ birth record or unknown cause, ”the ratchet and the ratchet are interlocked ^, the top of the ratchet block and the fixing member can be topped each other, and the return block is limited by the fixing member. It cannot be moved == It has extremely high product reliability. It can be used continuously if it hangs, maybe your review committee believes that the structural design phase of the present invention is ♦ wThe review standard issued by Jun Bureau on page 2-2-19 Tenth ^ jin ^

面 ιι ^^ ι 1231249 V. Description of the invention (7) "In the development of technology, there is a gap in usefulness or effectiveness" and then the invention is invented, and the present invention has produced considerable achievements. As mentioned above, this case has not been seen in this case. Any decision. Only those mentioned above limit the scope of the present invention to the equivalent variations. :: In the limited field, if there is a small technical improvement, it can be regarded as an improvement of some kind of skill. It is to encourage continuous innovation and development. ^ 1You think, it is in a limited space Li 1 'does have its patentability. Tian Zhi The invention has industrial applicability and progress. Any publication should comply with the provisions of Articles 19 and 20 of the Patent Law, and it is only a preferred embodiment of the invention. The generalization and modification of the patent application for invention should still be covered by the patent of the present invention. Page 11 1231249 The diagram is a brief description of the first diagram, the fourth diagram, the fourth diagram, the fifth diagram, the sixth diagram, A, the sixth diagram, and the seventh diagram. : The eighth picture A The eighth picture B Attachment one: "The brief description of the diagram is the three-dimensional combination diagram of the present invention; the three-dimensional exploded view of the present invention; the first diagram is the third diagram. The invention: the present invention: the present invention is the present invention: the present invention is a top view of a sectional view of the 3-4 cross-section view of the fault and troubleshooting, a bottom view, a cross-sectional view of the second embodiment; a top view of the second embodiment Bottom view of the second embodiment; 0: This is the bulletin of the present invention for the simple construction of the two-way ratchet wrench No. 335750. [Reference number in the figure] • —— · # 反 • · · · ^ 14 16 2 0 2 2 2 3 3 1 4 0 Concave ring groove in the body of the hand • Xingchang area • Ratchet block in the width area • Solitary surface 11 · 12 1 13 · First recessed end 17 2 1 2 3 3 0 3 2 Fixing piece 4 • Head convex ring edge receiving groove • Perforation • Throughhole • Rattooth • Embossed part of the second end of the convex elastomer

1 Page 12 1231249 Brief description of the drawing 5 0 ....... ratchet 5 2 ........ clamping part 5 4 ... • brake groove 51 ..... ... ratchet 5 3 ........ clamping part 5 5 ....... C-shaped buckle

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Claims (1)

1231249 One " 1 " — ... 6. Scope of patent application 1 · A simple ratchet wrench, including:, a wrench body, the head of the wrench body is provided with an accommodation space, the wrench An accommodating groove is provided at the throat of the body, and the accommodating groove is in communication with the accommodating space, and a perforation communicating with the accommodating groove is provided on a spoke area of at least one side edge of the wrench body; a ratchet block, The ratchet block is provided with a plurality of ratchet teeth. One end of the ratchet block is provided with a curved surface, and the other end of the ratchet block is provided with a clamping post. The ratchet block is arranged in a receiving groove of the wrench body. And can have a relative sliding relationship with the receiving groove; an elastic body, the elastic system has a first end and a second end, the first end of the elastic Φ body is sleeved on the clamping post of the ratchet block; A fixing piece which penetrates the perforation provided on the spoke area of the wrench body and the second end of the elastic body, and can securely limit the elastic body in the accommodation groove; a ratcheting member, a side of the ratcheting member The ring at the periphery of the surface is provided with several spines. Engaged with each other, the movable member of the ratchet system is incorporated into a rotatable manner in the accommodating space of the body of the wrench. 2 · The simple ratchet wrench according to item 1 of the scope of patent application, wherein one end of the receiving space of the wrench body is provided with a convex ring extending inward, and the other end of the receiving space is provided with a concave ring groove. 3, The simple ratchet wrench as described in item 范围 of the patent application scope, wherein the ratchet member is provided with a plurality of ratchet teeth at the peripheral edge of the side surface, and the ratchet teeth are respectively provided with a ring on each side of the ratchet member. A groove and a retracted clamping portion. 4 · The simple ratchet as described in item 丄 of the patent application, Page 14 I --- 1231249 VI. Patent application: The inside of the ratcheting part is provided with a convex ring inside the sharp corner without deforming it. 5 · If one of the ratchet blocks is applied for 6 · If the embossed part of the fixing part is applied for, the card of the embossed part at one end of the fixed part 7 · If the application is for the first side wall surface of the elastomer A margin is provided so that the screw ratcheting part can be a braking groove in the first range. The curved head of the braking groove is more easily inserted into the braking groove and inserted into the accommodation space of the wrench body. A ratchet wrench has a recess formed at the end. The simple ratchet wrench described in the first item of the scope of benefit, the diameter is slightly larger than that of the body of the wrench. When the body is in the perforation of the body, the fasteners are tightly fitted. The easy-to-type ratchet wrench's end is bent at an angle with the second end. One piece at the end is set in the wrench mechanism to make the perforation and the benefit range item 1. Page 15