TWM250758U - Improved structure for socket ratchet wrench - Google Patents

Description

M250758 IV. Creation Instructions (1) [Technical Field to which the New Type belongs] This creation relates to the improvement of the structure of a plum ratchet wrench, especially a structure improvement of a plum ratchet wrench with three-position orientation switching and stable blocking force. [Prior art] As shown in FIG. 6, it is a conventional two-way ratchet wrench. One end is a head 8 1. The head 8 1 is connected with a handle 8 2. The head 8 1 is provided with a ratchet 8 3. And at the intersection of the head 8 1 and the handle 8 2 there is a long hole 8 4 penetrating radially through the wrench, a ratchet rack 8 5 is penetrating the long hole 8 4, and the ratchet rack 8 5 has two opposite sides. A ratchet tooth part, and the ratchet rack 8 5 has two grooves 8 5 3 for the positioning steel ball 8 6 to be pushed up by the spring 8 7 and locked in position. Under normal conditions, the ratchet rack 8 5 is pushed up by the steel ball 8 6, so that the first ratchet part 8 5 1 and the ratchet wheel 8 3 are engaged and one end of the ratchet rack 8 5 is extended by a long hole 8 4 for The user pushes, by pushing the ratchet rack 8 5, changing the position of the ratchet rack 8 5 and the snap position of the steel ball 86, so that the second ratchet part 8 5 2 of the ratchet wheel 8 3 meshes with the ratchet wheel 8 3, Change the direction of rotation of the ratchet wrench. Since the intersection of the head 8 1 and the handle 8 2 is a stress concentration place when a force is applied at work, but because a long hole 8 4 is required to be inserted there, the strength of the intersection suddenly decreases a lot, so When the wrench is pulled, the intersection is liable to break and cannot withstand high torque. In addition, the wrench often needs to move in a small space, but because one end of the ratchet rack 85 is protruding from the wrench, it is easy to cause obstacles when turning the wrench, and the protruding ratchet rack 85 ends When the wrench is set on the bolt,

Page 5 M250758 IV. Creation Instructions (2) It is extremely inconvenient. In addition, the wrench has only two-position directional switching, and cannot have three-position directional switching, and there are still inconveniences in use. Please refer to FIG. 7 again, which is another conventional ratchet wrench. The ratchet wrench has a grip 9 and a ratchet 9 1, and the grip 9 is provided with an engaging block 9 2 near the ratchet 9 1 side. The free ends 9 2 1 of the two engaging blocks 9 2 can respectively abut the protruding teeth 9 3 of the ratchet 9 1, and the two engaging blocks 9 2 and the outer set 9 4 of the wrench are respectively provided with a spring 9 5. The two springs 9 5 enable the two engaging blocks 92 to be combined with the teeth 9 3 of the ratchet wheel 9 1 to deflect outwards. Furthermore, a pendulum block 9 6 is provided between the two engaging blocks 9 2. Block 96 can be swung left and right to open one engaging block 9 2 respectively, and the other engaging block 9 2 can resist ratchet 9 1 so that ratchet 91 can only rotate in one direction. However, this type of wrench is The two engaging blocks 9 2 are respectively pressed against the ratchet wheel 9 1 so that the ratchet wheel 9 1 can only rotate in one direction, and the two engaging blocks 9 2 are pivotally connected to the handle 9 and swing. Ratchet 9 1, and when the force of turning the wrench is large during work, the ratchet 9 1 will receive a considerable force. Once the force exceeds the force of the spring 9 5 top support, it may cause the engaging block 9 2 to External bias, even Can cause the engaging piece 92 of the pivot connection at the fracture, but not against the ratchet wheel 91. Furthermore, the wrench also has only two-position directional switching, and cannot have three-position directional switching, which is still inconvenient for users. Therefore, it is necessary to improve the defects caused by the structure of the above-mentioned conventional ratchet wrench.

M250758 IV. Creation Instructions (3) [New Content] The main purpose of this creation is to provide a modified ratchet wrench structure that solves the above problems. It has a body that can be held, and one end of the body has a housing. A hole for setting a ratchet of a plum-shaped hole, and the body is provided with a receiving slot on one side of the receiving hole, and the receiving slot is provided with a control device for controlling the turning of the ratchet; the control device It has a switching element and two ratchet blocks 5 controlled by the switching element. The switching element is framed in the receiving groove of the body. The two ratchet blocks are arranged on both sides of the switching element in the receiving groove. And two ratchet blocks respectively penetrate the receiving slot to the receiving hole, and the middle part of the switch member extends a lever radially to both sides for penetrating ratchet teeth on both sides of the switch member respectively. And the switch is pivoted by a switch, so that the levers on both sides of the switch drive each ratchet block to selectively engage the ratchet in the body to change the ratchet. Direction of rotation. Since the two ratchet blocks of the switching device can selectively lock the ratchet teeth by the switching of the switch button, or can simultaneously snap the ratchet teeth, the three-position directional switching effect is provided. The second purpose of this creation is that the ratchet block moves in the receiving slot to hold the ratchet in place, so that the ratchet can only rotate in one direction. Therefore, the ratchet block is restricted by the receiving slot and Support, so that the blocking force of the ratchet block is large and the combination is stable, and the ratchet block is restricted to move in the accommodation slot without the possibility of moving outward, so that the ratchet can be subjected to a larger force Affected by the ratchet block, it can withstand large working torque. [Embodiment]

M250758 IV. Creation Instructions (4) Please refer to Figure 1 to Figure 5. The first embodiment used in the creation is shown in the figure. This is for illustration purposes only and is not subject to this example in patent applications. Restrictions. This creation is an improved structure of a plum ratchet wrench, which has a body 1, one end of the body 1 is extended to form a grip 1 1, and the other end of the body 1 is connected to the grip 11 to form a head 1 2 The head 12 has an accommodating hole 1 3 for setting a ratchet 14 of a plum-shaped hole, and a portion of the head 12 and the handle 11 is connected with the accommodating hole. 13 The receiving grooves 15 are connected to each other. The receiving grooves 15 are provided with a control device 2 for controlling the steering of the ratchet wheel 14. The body 1 is in the receiving holes 13 and the receiving grooves. The upper cover is closed with a cover 16 for positioning the ratchet wheel 14 and the control device 2. The control device 2 has a switching member 21 and two ratchet blocks 22 which are controlled and moved by the switching member 21. The switching member 21 is pivotally disposed in the receiving slot 15 of the body 1. The block 2 2 is arranged on both sides of the switching member 21 in the accommodating slot 15, and the switching member 21 is pivoted by a switching button 23, so that the two sides of the switching member 21 are thorny. The tooth block 22 selectively catches the ratchet wheel 14 in the main body 1 to change the rotation direction of the ratchet wheel 14. In this embodiment, a pivoting hole 15 1 is provided in the receiving slot 15 of the body 1 for the pivoting of the switching member 21, and the receiving slot 15 is in the pivoting hole 1 5 1 One side slot 1 5 2 is provided on each of the two sides for receiving the ratchet block 2 2 respectively, and one end of each side slot 1 5 2 is respectively penetrated to the receiving hole 1 3 for each of the ratchets. Tooth block 2 2 extends the card and holds the ratchet 1

Page 8 M250758 IV. Creation instructions (5) 4 and one end of the switching member 21 is pivotally provided in the pivot hole 1 51, and the other end thereof protrudes from the cover 1 6 of the main body 1 for The switching button 2 3 is fixedly connected, and a lever 2 1 1 is radially extended to the two sides of the switching member 21 in the middle section, so as to penetrate through the ratchet blocks 22 on both sides of the switching member 21. A groove 2 2 3 is recessed in each of the ratchet blocks 2 2 corresponding to each of the shift levers 2 1 1 so that each of the shift levers 2 1 1 can extend and extend, and the switch is driven by the switch 2 3 2 1 pivots, so that the lever 2 1 1 can be tilted and horizontal, and one end of each of the ratchet blocks 2 2 has ratchet teeth 2 2 1 for the card

The other end of the ratchet wheel 1 4 is supported by an elastic body 2 2 2, as shown in FIG. 3, so that the ratchet teeth 2 2 1 of each of the ratchet blocks 2 2 are supported by the elastic body 2 2 2. Hold up the ratchet 1 4. The bottom of the switching member 21 of the switching device 2 has a first positioning groove 2 1 2, a second positioning groove 2 1 3 and a third positioning groove 2 1 4.

A positioning member 2 4 is engaged with one of the positioning grooves by a top support of an elastic body 2 4 1 for positioning the switch 2 1 of the lever 2 1 1 in a horizontal or inclined state 5 in the present embodiment Middle 5 The positioning member 2 4 is a steel ball. When the positioning member 2 4 is engaged with the second positioning groove 2 1 3, the lever 2 1 1 of the switching member 2 1 is horizontal, and when the When the positioning member 24 is engaged with the first or second positioning slot 2 1 2 or 2 1 4, the lever 2 1 1 of the switching member 2 1 is inclined. Thereby, the switching sister 23 of the control device 2 is switched to control the steering of the ratchet wheel 14, as shown in Figures 3 to 5, when the switching button 23 is switched to the right or left, Drive the switching member 21 to pivot, so that the levers 2 1 1 on both sides of the switching member 21 are tilted, and are subject to the positioning member 2 4

Page 9 M250758 IV. Creation instructions (6) The first positioning groove 2 1 2 or the third positioning groove 2 1 4 which is engaged with the bottom of the switch 2 1 to locate the tilting position of the lever 2 1 1 and The lower tilting lever 2 1 1 will drive the corresponding ratchet block 2 2 to move downwards, so that the ratchet block 2 2 of the ratchet block 2 2 1 is released from the ratchet wheel 1 4 and the other ratchet block 2 2 is subject to The top support of the elastic spring 2 2 2 catches the ratchet wheel 14 so that the ratchet wheel 14 can rotate clockwise or counterclockwise in one direction, and when the switching button 2 3 is in the middle position, it will cause The levers 2 1 1 on both sides of the switch 2 1 are leveled, and the positioning member 2 4 is engaged with a second positioning groove 2 1 3 at the bottom of the switch 2 1 to position the lever 2 1 1 horizontally. At this time, each of the ratchet blocks 22 is supported by each of the elastic bodies 22, and at the same time, the ratchet wheel 14 is blocked, so that the ratchet wheel 14 cannot be rotated, and the three-position orientation switch is provided. Effect. Since the ratchet block 2 2 is moved in the side slot 1 5 2 of the receiving slot 15 to hold the ratchet wheel 14 so that the ratchet wheel 14 can only rotate in one direction, the ratchet block 2 2 Limited by the side groove 1 5 2 of the receiving groove 15, the ratchet block 2 2 has a large blocking force and is firmly combined, and the ratchet block 2 2 is limited to the side groove 1 5 The ratchet wheel 14 can be moved by 2 without being able to move outward, so that the ratchet wheel 14 can be resisted by the ratchet block 22 and can withstand large working torque. The disclosure of the embodiments described above is used to explain the creation, not to limit the creation. Therefore, any change in the value or the replacement of equivalent components should still belong to the fan of this creation. From the above detailed description, those skilled in the art can understand that this creation can indeed achieve the aforementioned purpose, and it has already met the requirements of the Patent Law, and filed a patent.

Page 10 M250758

M250758 Brief description of the drawing. Figure 1 is the three-dimensional appearance of this creation. Figure 2 is the three-dimensional exploded view of this creation. Figure 3 is the schematic diagram of the ratchet block held by the elastic top support of the ratchet. Figure 4 This is a schematic diagram of a ratchet block driven by a lever to detach it from a ratchet. Figure 5 This is a schematic diagram of another ratchet block driven by a lever to detach from a ratchet. Figure 6 is a schematic diagram of a conventional ratchet wrench. Schematic diagram of another conventional ratchet wrench [Illustration of drawing number]

(Conventional part)

Head 8 1 shank 8 2 ratchet 8 3 long hole 8 4 ratchet 8 8 first ratchet 8 5 second ratchet 8 5 2 slot 8 5 3 positioning steel ball 8 6 spring 8 7 grip 9 ratchet 9 1 engaging block 9 2 Μ end 9 2 1 tooth 9 3 kit 9 4 spring 9 5 swing block 9 6 (this creative part) body 1 grip 1 1 head 1 2 receiving hole 1 3 ratchet 1 4 capacity Set slot 1 5 Frame connection hole 1 5 1 Side slot 1 5 2

Page 12 M250758 Brief description of the cover 1 6 Switching member 2 1 First positioning groove 2 1 2 Third positioning groove 2 1 4 Ratchet 2 2 1 Groove 2 2 3 Positioning member 2 4 Control device 2 Pivot lever 2 1 1 Second positioning slot 2 1 3 Ratchet block 2 2 Elastomer 2 2 2 Switch button 2 3 Elastomer 2 4 1

Page 13

Claims (1)

M250758 5. Scope of patent application 1. An improved structure of a plum ratchet wrench, which has a body for holding, one end of the body has a receiving hole for setting a ratchet with a plum-shaped hole, and the body is provided in the An accommodating slot is provided on one side of the accommodating hole, and the accommodating slot is provided with a control device for controlling the steering of the ratchet wheel; the control device has a switch and two ratchet blocks controlled by the switch to move, The switching member is pivotally disposed in the receiving groove of the body, and the two ratchet blocks are disposed on both sides of the switching member in the receiving slot, and the two ratchet blocks are respectively extended through the receiving slot to the receiving slot. Holes, and the middle part of the switch member extends a lever radially to both sides for penetrating into ratchet blocks on both sides of the switch member, and the switch member is pivoted by a switch button, And the levers on both sides of the switching member drive each ratchet block to selectively catch the ratchet wheel in the body to change the direction of rotation of the ratchet wheel. 2. The structure improvement of the plum ratchet wrench according to item 1 of the scope of the patent application, wherein one end of the body extends to form a grip for holding, and the other end of the body is connected to the grip to form a head, The head has the accommodating hole, and the accommodating slot is provided at the joint between the head and the handle, and the body is covered with a cover on the accommodating hole and the accommodating slot for positioning the ratchet wheel. And the control device, and a pivot hole is provided in the accommodation groove of the body for pivoting the switch of the control device, and the accommodation groove is provided with a side groove on both sides of the pivot hole, The ratchet block is respectively accommodated, and one end of each of the side grooves is respectively penetrated to the accommodation 孑 L, so that each ratchet block penetrates and extends to hold the ratchet wheel. Page 14 M250758 V. Application for patent scope 3 · According to the improvement of the structure of the plum ratchet wrench described in item 2 of the patent application scope, 'One end of the switch of the control device is located in the locating hole, and the other end is The cover of the main body is extended to fix the switch. 4 · According to the improvement of the plum ratchet wrench structure described in item 2 of the scope of the patent application, wherein each of the ratchet blocks of the control device corresponding to each of the shift levers of the switch is recessed for each of the shifts. The rod penetrates and extends, and each of the ratchet blocks extends out of the side groove of the accommodating groove and has ratchet teeth at one end for clamping the ratchet wheel, and the other ends are respectively supported by an elastic body. 5. The structure improvement of the plum ratchet wrench according to item 1 of the scope of the patent application, wherein the bottom of the switching part of the switching device has a first positioning groove, a second positioning groove and a third positioning groove for positioning. The piece is engaged with one of the positioning grooves by a top support of an elastic body for positioning the switch lever in a horizontal or inclined state. When the positioning piece is engaged with the second positioning groove, the The shift lever is in a horizontal state, and when the positioning member is engaged with one of the first positioning groove and the second positioning groove, the shift lever of the switching member is inclined. 6. The structure improvement of the plum ratchet wrench according to item 5 of the scope of patent application, wherein the positioning member is a steel ball. Page 15