TWI808491B - Elastic opening clamp - Google Patents

Abstract

This invention relates to an elastic opening clamp, which includes at least a first clamping body and a second clamping body. Said first clamping body is provided with a first clamping portion and a first shaft seat, said second clamping body is provided with a second clamping portion and a second shaft seat, said first clamping portion and second clamping portion are arranged in correspondence with each other to clamp an article together. Said first shaft seat and second shaft seat are pivotally connected to each other through a pivot, so that said first clamping body and second clamping body can rotate relatively. The upper end of said first shaft seat is provided with a first pressing portion, and the lower end of said second shaft seat is provided with a second pressing portion, a spiral clutch device and an elastic telescopic torsion member are arranged between said first shaft seat and second shaft seat. When a user presses said first clamping body and second clamping body at the same time, said clamp can carry out multi-stage closing operation, and when the user presses said first pressing portion and second pressing portion at the same time, said elastic torsion member can make said first clamping body and second clamping body automatically and elastically open.

Description

pop open clamp

The present invention is a snap-open clamp, especially a clamp that can be applied to various items such as hair, thread, and plants that need to be clamped and loosened repeatedly.

The known snap-open clamp, such as the U.S. No. US7984720B2 "BOBBY PIN (hairpin)" previously invented by the inventor of this case, is composed of a left clamp body 2 and a right clamp body 3, and a plurality of clamp ribs 20, 30 and joint parts 21, 31 are respectively arranged on the left clamp body 2 and right clamp body 3, and a shaft 6 is passed through the joint parts 21, 31 and elastic elements 4, 5 of the left clamp body 2 and right clamp body 3, The hairpin has the function of automatically springing open, and through the engaging teeth 200, 300 on the clip ribs 20, 30 or the left rib 201 and right rib 301 on the left clip body 2 and right clip body 3, the user can press the left clip body 2 and the right clip body 3 to achieve the effect of multi-stage fastening and clamping.

However, the inventor of this case found after many years of R&D, manufacturing and market research that there are many problems to be overcome in this conventional hairpin:

First, the engaging tooth parts 200 and 300 of the hair clip are not easy to fasten tightly in use, and are very easy to be squeezed by the elastic force or external force of the clamped object and bounce off by themselves, so it will cause consumers' confusion. Bad experience. Moreover, the engaging teeth 200, 300 of the clip ribs 20, 30 are very easy to clip the hair, which will not only damage the hair quality, but also cause the hair clip to get stuck.

Second, the left rib 201 and the right rib 301 are restricted in size, so the number of them can be set is limited, and the number of sections that can be clamped is very small, so it is very difficult for the user to fine-tune the tightness. And because the left rib 201 and the right rib 301 are small in size and small in number, their overall fastening force is also relatively small, and they are very easy to be squeezed by the elastic force or external force of the clamped object and bounce off by themselves, resulting in reduced practicability of the hair clip and poor market acceptance.

The 3rd, the elastic elements 4,5 of this hair clip are all exposed on the outside, and it is not only poor in appearance, and this elastic elements 4,5 also can be stuck dirty, be clipped to hair, and be subject to the impact of external environmental factors (hair, water, hair gel and other pollutants) and get rusty.

Fourth, the structure of the hairpin has a lot of problems in mold opening and manufacturing. It must be processed and manufactured in a very complicated way, resulting in an increase in cost and a higher price than other hairpins on the market, losing market competitiveness.

For this reason, the inventor of this case has accumulated many years of experience in the research and development and manufacture of clips such as hairpins, and has specially studied the shortcomings and problems of previously known hairpins, and invented this case.

The object of the present invention is to provide an innovative snap-open clamp. A screw clutch device and an elastic telescopic torsion element are arranged at the pivotal position between the first clamping body and the second clamping body. The user can press the first clamping body and the second clamping body to gradually close and clamp the clamp, and press the upper and lower ends of the pivoting position of the first clamping body and the second clamping body to make the clamp automatically pop open. Furthermore, the screw type clutch device of the present invention can effectively prevent the teeth from bouncing off, and The tighter the clamp is, the more the toothing parts are, and the greater the resistance to reverse movement is, so that the spiral clutch device has the best toothing force and tooth loss prevention effect. In addition, the elastic stretchable torsion element of the present invention will not be exposed outside, and has the effect of being beautiful and protecting the elastic stretchable torsion element, and the clamp assembly of the present invention has many variations, better expansion functions, easier manufacture, higher yield rate, and more exquisite. The shape design and material selection of the outer surface of the clamp will not be subject to any restrictions, and has the best practicality and economic benefits.

In addition to the above-mentioned elastic telescopic part 241 of the elastic telescopic torsion element 24, which can provide the teeth engagement force between the first helical rack 230 and the second helical rack 231, and prevent the helical clutch device 23 from detaching. After a long period of testing, the inventor found that when the user presses the clamp 2, the helical rack structure moves forward in steps (shortening the distance between the first helical rack 230 and the second helical rack 231), and cooperates with the elastic telescopic part 241 of the elastic telescopic torsion element 24. Elastic force (increasing the distance between the elastic expansion parts 241), so the clamping process of the clamp 2 will be very smooth and easy to operate, and will not be stuck; when the user releases the clamp, the reaction force or elastic force generated by the clamped object will reversely stretch the clamp body, and the stepped structure of the aforementioned helical rack will generate a very strong anti-reverse movement resistance (similar to the hook structure, and the anti-reverse movement resistance comes from the structural characteristics and elasticity of the first helical rack 230 and the second helical rack 231 The elastic force of the telescopic part 241) to prevent the helical clutch device 23 from detaching and bouncing away, and the tighter the clamp 2 is clamped, the more teeth are engaged, and the resistance to reverse movement is greater, so that the helical clutch device 23 has the best tooth engagement force and tooth detachment prevention effect.

In order to achieve the aforementioned purpose, the pop-up clamp of the present invention is provided with a first clamping body and a second clamping body, the first clamping system is provided with a first clamping portion and a first shaft seat, the second clamping system is provided with a second clamping portion and a second shaft seat, the first clamping portion and the second The clamping parts are arranged corresponding to each other to jointly clamp an object; the first axle seat and the second axle seat are pivoted and combined with each other through a pivot, so that the first clamping body and the second clamping body can rotate relatively; a first pressing part is arranged on the upper end of the first axle seat, a second pressing part is arranged on the lower end of the second axle seat, and a spiral clutch device and an elastic telescopic torsion element are arranged between the first axle seat and the second axle seat. The aforementioned helical clutch device is provided with a first helical rack and a second helical rack. The first helical rack and the second helical rack are respectively arranged on the first shaft seat and the second shaft seat corresponding to each other and can mesh with each other. The above-mentioned elastic telescopic torsion element is provided with a torsion part and an elastic telescopic part, and the two ends of the torsion part are respectively positioned on the aforementioned first clip body and the second clip body, so as to provide the elastic force for the first clip body and a second clip body to automatically stretch out;

In the pop-up clamp of the present invention, the aforementioned clamp is provided with a rotating protective sleeve, the aforementioned rotating protective sleeve is provided with a male sleeve and a female sleeve, and an abutment portion is provided on one side of the aforementioned female sleeve, the aforementioned male sleeve is arranged on one side of the second helical rack of the aforementioned second axle seat, the aforementioned female sleeve is sleeved on the aforementioned male sleeve, the aforementioned female sleeve is limited between the aforementioned second helical rack and the first pressing portion, the abutting portion of the aforementioned female sleeve is against the inner wall of the aforementioned first axle seat, and The inner side of the female sleeve is provided with a first fastening groove, the inner side of the male sleeve is provided with a second fastening groove, and the two ends of the torsion part are respectively buckled in the first fastening groove of the female sleeve and the second fastening groove of the male sleeve, and the elastic telescopic torsion element is covered in the rotating protection sleeve.

In the pop-up clamp of the present invention, the aforementioned clamp is provided with a cover on the outer side of the aforementioned elastically expandable torsion element, and the elastically expandable torsion element is wrapped in the aforementioned cover.

In the spring-open clamp of the present invention, the first shaft seat is provided with a first fastening groove inside the first pressing portion, and the second shaft seat is provided with a second fastening groove at one side of the second helical rack, so that the two ends of the torsion portion of the elastic stretchable torsion element can be buckled in the first fastening groove and the second fastening groove respectively, and the elastic stretchable torsion element is positioned between the first pressing portion and the second helical rack.

2: Fixture

20: The first clip body

200: the first clamping part

201: The first shaft seat

202: the first connecting element

203: the first pressing part

204: the first stopper

205: The first fastening groove

21: The second clip body

210: the second clamping part

211: Second shaft seat

212: the second connecting element

213: the second pressing part

214: the second stop part

215: the second fastening groove

22: Pivot

23: Spiral clutch device

230: The first helical rack

231: Second helical rack

24: elastic telescopic torsion element

240: Torsion Department

241: Elastic expansion part

25: Rotating protective sleeve

250: male socket

251: female sleeve

252: contact part

26: Capping

27: Decorative structure

Fig. 1 is a perspective view of the first embodiment of the present invention.

Fig. 2 is a front view of the clamped state in Fig. 2 .

FIG. 3 is an exploded view of FIG. 2 .

Fig. 4 is a front view of Fig. 2 .

Fig. 5 is a sectional view along A-A of Fig. 4 .

Fig. 6 is a B-B sectional view of Fig. 4 .

Fig. 7 is a schematic diagram of the clamping operation of the first embodiment of the present invention.

Fig. 8 is a schematic diagram of the opening operation of the first embodiment of the present invention.

Fig. 9 is an exploded view of a second embodiment of the present invention.

Fig. 10 is a schematic illustration of the clamping operation of the second embodiment of the present invention.

Fig. 11 is a schematic diagram of the opening operation of the second embodiment of the present invention.

Fig. 12 is a schematic diagram of the tooth plate clamp structure of the first clamping part and the second clamping part of the present invention.

Fig. 13 is a schematic diagram of the ring clamp structure of the first clamping part and the second clamping part of the present invention.

Fig. 14 is the first embodiment of the first connection element and the second connection element of the present invention.

Fig. 15 is a second embodiment of the first connection element and the second connection element of the present invention.

Fig. 16 is a third embodiment of the first connection element and the second connection element of the present invention.

Fig. 17 is a fourth embodiment of the first connection element and the second connection element of the present invention.

Fig. 18 is an exploded view of a third embodiment of the present invention.

Fig. 19 is a schematic diagram of the use state of the clamp of the present invention.

In order to further understand the present invention, the implementation of the best pop-up clamp is shown in Figures 1-19, at least including: a clamp 2, a first clamping body 20 and a second clamping body 21, the first clamping body 20 is provided with a first clamping part 200 and a first shaft seat 201, the second clamping body 21 is provided with a second clamping part 210 and a second shaft seat 211, the first clamping part 200 and the second clamping part 210 are set in correspondence with each other to clamp together Hold an item. The first shaft seat 201 and the second shaft seat 211 are pivotally connected to each other through a pivot shaft 22 , so that the first clip body 20 and the second clip body 21 can rotate relative to each other.

The above-mentioned first clamping part 200 and second clamping part 210 can have various structures such as claw clamp structure (as shown in FIG. 1 ), tooth plate clamp structure (as shown in FIG. 12 ), and ring clamp structure (as shown in FIG. 13 ). The aforementioned first clamping body 20 and the first clamping portion 200 can be integrally formed (as shown in FIG. 18 ); or it can be an assembled clamping structure, and a first connecting element 202 is provided between the aforementioned first clamping body 20 and the first clamping portion 200 . The aforementioned second clamping body 21 and the second clamping portion 210 can be integrally formed (as shown in FIG. 18 ); or it can be an assembled clamping structure, and a second connecting element 212 is provided between the aforementioned second clamping body 21 and the second clamping portion 210 . The aforementioned first connection element 202 and the second connection element 212 are embedded Various replaceable structures (as shown in FIGS. 14 to 17 ) such as a joint structure or a fastening structure, or a glue, depending on the application requirements, are all optional.

The above-mentioned first clamping part 200 and second clamping part 210 are made of various hard or elastic materials such as plastic, rubber, wood, ceramics, metal, etc., so that the applicable range of the clamp 2 can be improved through material changes (for example, when the first clamping part 200 and the second clamping part 210 are made of hard materials such as metal, ceramics or wood, etc., the durability and shape change of the clamp can be improved; when the first clamping part 200 and the second clamping part 210 are made of plastic or When made of elastic materials such as rubber, the clamp can be used to clamp special items such as body parts, various wires or plants, so as to achieve the effect of protecting the items).

A first pressing part 203 is set at the upper end of the first shaft seat 201, a second pressing part 213 is set at the lower end of the second shaft seat 211, and a screw clutch device 23 and an elastic telescopic torsion element 24 are arranged between the first shaft seat 201 and the second shaft seat 211. The outer end of the first shaft seat 201 is provided with a first stop portion 204, and the outer end of the second shaft seat 211 is provided with a second stop portion 214. The first stop portion 204 and the second stop portion 214 can resist each other when the first shaft seat 201 and the second shaft seat 211 rotate and bounce apart, so as to limit the maximum angle at which the first shaft seat 201 and the second shaft seat 211 expand.

The aforementioned helical clutch device 23 is provided with a first helical rack 230 and a second helical rack 231. The first helical rack 230 and the second helical rack 231 are respectively arranged on the first shaft seat 201 and the second shaft seat 211 corresponding to each other, and can mesh with each other.

The aforementioned elastically expandable torsion element 24 is provided with a torsion portion 240 and an elastically expandable portion 241 . The two ends of the torsion part 240 are respectively connected to the first clamp body 20 and the second clamp body 21 to provide the elastic force for the first clamp body 20 and the second clamp body 21 to automatically expand; The upper and lower ends of the constricted portion 241 are respectively against the first shaft seat 201 and the second shaft seat 211 to utilize the elastic force of the elastic stretch portion 241 to provide the engagement force between the first helical rack 230 and the second helical rack 231 . As shown in Figures 3, 5, and 6, the first shaft seat 201 can be provided with a first fastening groove 205 inside the first pressing portion 203, and the second shaft seat 211 can be provided with a second fastening groove 215 on one side of the second helical rack 231, so that the two ends of the torsion portion 240 of the elastic telescopic torsion element 24 can be respectively buckled in the first fastening groove 205 and the second fastening groove 215, and the elastic telescopic torsion element 24 can be positioned in the first pressing position. Between the portion 203 and the second helical rack 231; or as shown in FIGS.

It is worth mentioning that, in addition to the aforementioned elastic expansion and contraction part 241 of the elastic expansion torsion element 24 can provide the engagement force between the first helical rack 230 and the second helical rack 231 to prevent the helical clutch device 23 from detaching. The elastic force of the elastic expansion parts 241 (increase the distance between the elastic expansion parts 241), so the clamping process of the clamp 2 will be very smooth and easy to operate, and will not be stuck; when the user releases the clamp, the reaction force or elastic force generated by the clamped object will reverse the clamp body, and the stepped structure of the aforementioned helical rack will generate a very strong anti-reverse movement resistance (similar to the barb structure, and the anti-reverse movement resistance comes from the first helical rack 230 and the second helical rack 2. 31 and the elastic force of the elastic expansion part 241) to prevent the helical clutch device 23 from detaching and bouncing away, and the tighter the clamp 2 is clamped, the more teeth are engaged, and the resistance to reverse movement is greater. In this way, the helical clutch device 23 can have the best tooth engagement force and tooth detachment prevention effect.

As shown in FIG. 3 , the torsion portion 240 and the elastic expansion portion 241 of the aforementioned elastic expansion torsion element 24 can be an integrally formed structure (such as an elastic expansion torsion spring), or can be two separate structures, depending on the application requirements. When the torsion part 240 and the elastic telescopic part 241 of the aforementioned elastically telescopic torsion element 24 are two separate structures, the aforementioned torsion part 240 can be a torsion spring or a shrapnel, and the aforementioned elastic telescopic part 241 can be a telescopic spring or an elastic body (such as a plastic block or rubber block with elastic force, which can solve the problem of metal rusting).

As shown in the first embodiment of the clamp 2 shown in Figures 1 to 8, the clamp 2 is provided with a rotating protective sleeve 25, the aforementioned rotating protective sleeve 25 is provided with a male sleeve 250 and a female sleeve 251, and an abutment portion 252 is arranged on one side of the aforementioned female sleeve 251. The cylinder 251 is limited between the second helical rack 231 and the first pressing portion 203. The abutting portion 252 of the female sleeve 251 is against the inner wall of the first shaft seat 201 and can rotate synchronously with the first shaft seat. The first fastening groove 205 is set inside the female sleeve 251, and the second fastening groove 215 is set inside the male sleeve 250, so that the two ends of the torsion portion 240 can be buckled on the female sleeve 2 respectively. The first fastening groove 205 of 51 is connected with the second fastening groove 215 of the male sleeve 250, and the elastic telescopic torsion element 24 is wrapped in the aforementioned rotating protective sleeve 25, so that the elastic telescopic torsion element 24 can be isolated from the outside, reducing the influence of external factors (hair, water, hair gel and other pollutants) on the elastic telescopic torsion element 24, achieving the effect of beautiful appearance and protection of the elastic telescopic torsion element 24.

The second embodiment of the clamp 2 as shown in Figure 9 and the third embodiment of the clamp 2 as shown in Figure 18, the clamp 2 is provided with a cover 26 outside the aforementioned elastic expansion torsion torsion element 24, and the elastic expansion and contraction torsion element 24 is wrapped in the aforementioned cover 26, so that the elastic expansion and contraction The torsion element 24 can be isolated from the outside to reduce the impact of external factors (hair, water, hairspray and other pollutants) on the elastically stretchable torsion element 24, thereby achieving the effect of being beautiful and protecting the elastically stretchable torsion element 24.

As shown in Figure 19, the outer surface of the aforementioned fixture 2 must be provided with a decorative structure 27, such as rhinestones, embossed or printed matter, etc.

As shown in Figures 7 and 10, when the user places the clamp 2 on an object (as shown in Figure 19), he only needs to press both sides of the first clamp body 20 and the second clamp body 21 of the clamp 2 to make the clamp 2 rotate and clamp the object gradually, and the user can control the degree of pressing and clamping according to his needs; The helical clutch device 23 is pressurized so that the first helical rack 230 and the second helical rack 231 can engage and position each other, and prevent the clamp 2 from being stretched by the reverse elastic force of the torsion part 240 of the elastic telescopic torsion element 24 and the reverse force of the aforementioned items, and the clamping operation of the clamp is completed.

As shown in Figures 8 and 11, when the user wants to remove the clamp 2, he only needs to press the first pressing part 203 and the second pressing part 213 of the clamp 2, so that the first helical rack 230 and the second helical rack 231 of the aforementioned helical clutch device 23 are separated from each other (teeth removal). The first clip body 20 and the second clip body 21 complete the opening operation of the clip.

To sum up, the pop-up clamp of the present invention is very convenient to use, and its spiral clutch device can effectively prevent teeth from popping off, and the tighter the clamp is, the more parts are engaged, and the anti-reverse The greater the movement resistance, the better the tooth engagement force and anti-loosening effect of the helical clutch device. In addition, the elastic telescopic torsion element of the present invention will not be exposed outside, and has the effect of being beautiful and protecting the elastic telescopic torsion element, and the clamp assembly of the present invention has many variations, better expansion functions, easier manufacture, higher yield rate, and more exquisite. The shape design and material selection of the outer surface of the clamp will not be subject to any restrictions, and it has the best practicality and economic benefits, which is the composition of this case.

The aforementioned embodiments or drawings do not limit the product form, structure or usage of the present invention, and any appropriate changes or modifications by those with ordinary knowledge in the technical field shall be deemed as not departing from the patent scope of the present invention.

2: Fixture

20: The first clip body

200: the first clamping part

201: The first shaft seat

202: the first connecting element

203: the first pressing part

204: the first stopper

205: The first fastening groove

21: The second clip body

210: the second clamping part

211: Second shaft seat

212: the second connecting element

213: the second pressing part

214: the second stop part

22: Pivot

23: Spiral clutch device

230: The first helical rack

231: Second helical rack

24: Elastic telescopic torsion element

240: Torsion Department

241: Elastic expansion part

25: Rotating protective sleeve

250: male socket

251: female sleeve

252: contact part

Claims (7)

A pop-open clamp comprising at least: A clamp includes a first clamping body and a second clamping body. The first clamping system is provided with a first clamping portion and a first shaft seat. The second clamping system is provided with a second clamping portion and a second shaft seat. The first clamping portion and the second clamping portion are arranged in correspondence with each other to clamp an object together. A second pressing part, a screw type clutch device and an elastic telescopic torsion element are arranged between the aforementioned first shaft seat and the second shaft seat; The aforementioned helical clutch device is provided with a first helical rack and a second helical rack, the first helical rack and the second helical rack are respectively arranged on the first shaft seat and the second shaft seat corresponding to each other, and can mesh with each other; The above-mentioned elastic telescopic torsion element is provided with a torsion part and an elastic telescopic part, and the two ends of the torsion part are respectively positioned on the aforementioned first clip body and the second clip body, so as to provide the elastic force for the first clip body and a second clip body to automatically stretch out; According to the pop-up clamp described in item 1 of the scope of the patent application, wherein the clamp is provided with a rotating protective sleeve, the rotating protective sleeve is provided with a male sleeve and a female sleeve, and an abutment portion is provided on one side of the female sleeve, the male sleeve is provided on one side of the second helical rack of the second shaft seat, the female sleeve is sleeved on the male sleeve, the female sleeve is limited between the second helical rack and the first pressing portion, and the abutting portion of the female sleeve is against the first shaft The inner side wall of the seat can rotate synchronously with the aforementioned first shaft seat. The inner side of the female sleeve is provided with a first fastening groove, and the inner side of the aforementioned male sleeve is provided with a second fastening groove. According to the pop-up clamp described in item 1 of the scope of the patent application, wherein the clamp is provided with a cover outside the elastic stretch torsion element, and the elastic stretch torsion element is wrapped in the cover. According to the pop-up clamp described in item 1 of the scope of the patent application, wherein the first shaft seat is provided with a first fastening groove inside the first pressing part, and the second shaft seat is provided with a second fastening groove on one side of the second helical rack. According to the flip-open clamp described in any one of items 1 to 4 of the scope of the patent application, a first connecting element is provided between the first clamping body and the first clamping part, and a second connecting component is provided between the second clamping body and the second clamping part. According to the pop-open clamp described in any one of items 1 to 4 of the scope of the patent application, wherein the outer end of the first shaft seat is provided with a first stopper, and the outer end of the second shaft seat is provided with a second stopper, the first stopper and the second stopper can resist each other when the first shaft seat and the second shaft seat rotate and pop open, so as to limit the maximum expansion angle of the first shaft seat and the second shaft seat. According to the spring-opening clamp described in any one of items 1 to 4 of the scope of the patent application, wherein the torsion part and the elastic expansion part of the aforementioned elastically expandable torsion element are integrally formed.

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