TWM486709U - Stretching elastic recovery device structure - Google Patents

Description

Tensile elastic recovery element structure

This creation relates to a tensile elastic recovery element structure that enhances the transmission of force and avoids the occurrence of improper deformation and fracture.

Conventional tension springs are used as the recovery elements, as shown in Figs. 1, 2, usually at the two ends of the tension spring 11, and the spiral spring strips are integrally extended and folded to form a hook 12 which can be hooked on the object, and is buckled. When the pulling hole portions of the object are pulled/exited from each other, the pitch of the tension spring 11 is expanded to generate a return elastic force, and the elastic force is restored by the strand, so that the pulling force can be released when the pulling force of the object is released. The portion is pulled back to the origin (object formation recovery action); obviously, the tension point of the tension spring returning member 10, the tensile force of the tension spring 11 or the elastic force of the deformation returning force is the turning point formed by the spring bar hook 12 12A and the position of the buckle point 12B of the hook 12, since the hook 12 is a structure in which the spring strip is stretched and formed, it has deformable elasticity, and the overall strength of the expansion deformation force of the entire coil spring is concentrated on the two points. Therefore, when the hook 12 is subjected to the external pulling force, it is necessary to first perform the maximum expansion deformation of the hook 12 (the sliding point of the buckle point 11B) and the turning angle of the turning point 12A for the maximum angle expansion deformation, and then the pitch opening operation of the coil spring will start. Relatively produced The return elastic force on the object fastening hole portion not only has the elastic restoring force of the tension spring 11 itself, but also the return elasticity of the turning point 11A and the recovery elasticity after the expansion and deformation of the hook 12, the result of the long-term stretching/recovering action, the turning point 11A Corner angle and The shape of the hook 11 is prone to the problem of premature elastic fatigue. For example, as shown in Figs. 3 and 4, the conventional tension spring returning member 10 is applied to the clutch 20 of the vehicle, and the two moving blocks 21 are each returned. The tension spring 11 of the component 10 is hooked at both ends of the hook 12, and each of the returning elements 10 is required to have nearly the same pulling force from the beginning, and after the turning point 11A turning angle and the hook 12 body are prematurely elastic fatigue (permanently improper deformation) The obvious change or difference (the elastic tension varies), often due to the inconsistency (loss of sensitivity) of the swinging opening and closing angle of each turbulent block 21, causing the swaying block 21 to make the piece 22 and the passive disk 30 pieces of excessive slip wear (shortened to make the life of the film 22) and excessive oscillation, reducing the smoothness and smoothness of the power transmission, and even the turning point 11A turning angle and the hook 12 body appear elastic fatigue, but also due to the tensile resistance Insufficient strength, resulting in breakage or damage, immediately jeopardizes the transmission of power.

The main purpose of the present invention is to provide a tensile elastic recovery element structure, which is a tensile elastic element, comprising a two-clamped joint and a coil spring; the buckle joint is formed with a seat on a rigid plate body. And a loop-shaped clasp is formed at one end of the splicing portion, and the upper and lower positions of the slab portion of the splicing portion further corresponding to the spiral path of the coil spring, and at least one upper threading hole which is vertically aligned And a threading hole; the two ends of the coil spring are respectively screwed through the upper threading hole and the lower threading hole on the joint portion of the buckle joint, and the two buckle joints are respectively connected to the coil spring When the hooks of the two buckle joints are respectively hooked on the object, the upper and lower threading holes are wound around the coil spring by the joint portion of the buckle joint and the end of the coil spring. The first spring strip is formed with at least two synchronous output points or action points, so that the elastic force of the tensile elastic element recovered by the stretching or stretching of the object acts on the object, and It is effective enough to ensure the sensitivity of the force transmission reaction, and also avoids improper deformation or breakage.

The second objective of the present invention is to provide a tensile elastic recovery element structure, wherein the buckle joint is formed of a steel plate material by stamping or forging to form a seat portion having upper and lower threading holes and a near-C-shaped hook. The buckle is connected to the coil spring, and the coil spring can utilize the excellent deformation resistance and breaking strength of the buckle joint, and the tensile force or stable force of the receiving object is stabilized. Resilience is transmitted to the object.

A further object of the present invention is to provide a structure of a tensile elastic recovery element, wherein an upper threading hole and a lower threading hole are formed in the connecting portion of the buckle joint corresponding to the coil spring path of the coil spring. The front and rear holes of the upper threading hole and the lower threading hole are slightly larger than the one-half pitch of the coil spring; when the two ends of the coil spring are respectively on the joint portion of the buckle joint, the winding is passed through the When the upper and lower threading holes are completed and the buckle joint is connected on the coil spring, the upper and lower threading holes can be used to expand the length of the spring spring to produce a strong clamping force, so that the buckle joint can For a long time, it is firmly at the end of the coil spring.

10‧‧‧Response components

11‧‧‧ stretching spring

12‧‧‧ hook

12A‧‧‧ turning point

12B‧‧‧ Pull points

20‧‧‧Clutch

21‧‧‧掣动块

22‧‧‧来片

30‧‧‧Stretching elastic elements

31‧‧‧ buckle joint

310‧‧‧Receiving Department

311‧‧‧ hook

312‧‧‧Upper threading hole

313‧‧‧Under the threading hole

32‧‧‧Helical spring

Figure 1 is a schematic view of the construction of a conventional tension spring return element (1)

Figure 2 is a schematic view of the construction of a conventional tension spring return element (2)

Figure 3 is a schematic view showing the state of the conventional tension spring returning member used on the clutch

Figure 4 is a schematic view showing the state of the conventional tension spring returning member when it is stretched on the clutch.

Figure 5 is an exploded perspective view of the creation structure

Figure 6 is a schematic diagram of the combination of the creation structure

Figure 7 is a schematic diagram of the state of the present use on the clutch.

Figure 8 is a schematic view of the state of the present invention when the clutch is stretched.

A tensile elastic recovery element structure, as shown in FIGS. 5 and 6, is a tensile elastic element 30, comprising a two-clamping joint 31 and a coil spring 32; the buckle joint 31 is attached to a rigid plate body, such as a steel plate block. A socket portion 310 is formed on the end of the socket portion 310, and a ring-shaped hook 311 is formed on the one end of the socket portion 310. The upper surface of the socket portion 310 also corresponds to the spiral path of the coil spring 32. An upper threading hole 312 and a lower threading hole 313 are arranged in the upper and lower directions. The two ends of the coil spring 32 are respectively arranged on the socket portion 310 of the buckle joint 31, and are sequentially wound by the end of the spring wire. The two fastening tabs 31 are respectively connected to one end of the coil spring 32; when the hooks 311 of the two fastening tabs 31 are respectively hooked on the object, for example, As shown in FIGS. 7 and 8, between the two movable blocks 21 of the vehicle clutch 20, the hooks 311 of the two buckle pull joints 31 are respectively fastened to the end end of the movable block 21 and the other movable block 21 The portion of the buttonhole is formed by the joint portion 310 of the clip joint 31 and the coil spring 32, as shown in FIG. The upper and lower threading holes 312, 313 are formed with at least two synchronous output points or action points on a length of the spring coil wound around the coil spring 32. As shown in Figs. 7, 8, the tensile elastic member 30 is twisted. The elastic force recovered after the moving block 21 is stretched or stretched acts on the body of the swaying block 21, and the whole coil spring 32 can be used for the abnormal deformation, so that each swaying block 2 has different swaying and returning movements with different rotation speeds. The consistency or sensitivity of the force transfer reaction can be maintained for a long period of time (reduced to cause the sheet 22 to slip, vibrate or wear), and it is also effective to avoid the occurrence of improper deformation or breakage (ensure the effectiveness of power transmission).

According to the above embodiment, wherein, as shown in FIGS. 5 and 6, the buckle joint 31 is formed of a steel plate material, and the socket portion 310 having the upper and lower threading holes 312 and 313 and the near-C-shaped hook shape are formed by stamping or forging. The buckle 311 is connected to the coil spring 32, and the coil spring 32 can utilize the buckle joint 31 to have excellent deformation resistance and breaking strength, and the stability is as shown in FIGS. 7 and 8. The receiving force of the clutch 20 urging block 21 or the stable returning elastic force is transmitted to the object.

According to the above embodiment, in the connecting portion 310 of the buckle connector 31, an upper threading hole 312 and a lower threading hole 313 are defined in the coil spring path of the coil spring 32. The front and rear hole distances A of the threading holes 312 and the lower threading holes 313 are slightly larger than the one-half pitch B of the coil spring 32 (A=B/2); when the two ends of the coil spring 32 are respectively at the one buckle On the accommodating portion 310 of the pull tab 31, when the end of the coil spring 32 is connected by the end of the reed wire, the end of the coil spring 32 is connected by the upper and lower threaded holes 312, 313, The threading holes 312, 313 extend the strong clamping force generated by the spline length of the end of the coil spring so that the buckle joint 31 can be firmly secured to the end position of the coil spring 32 for a long time.

The above description is intended to be illustrative, and not restrictive, and many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention. , but all will fall within the scope of this creation.

30‧‧‧Stretching elastic elements

31‧‧‧ buckle joint

310‧‧‧Receiving Department

311‧‧‧ hook

312‧‧‧Upper threading hole

313‧‧‧Under the threading hole

32‧‧‧Helical spring

Claims (3)

A tensile elastic recovery element structure, which is a tensile elastic element, comprising a two-clamped joint and a coil spring; the buckle joint is formed on a rigid plate body with a seat portion, and at the joint portion One end of the slat is formed with a loop-shaped clasp, and the upper and lower positions of the slab portion of the splicing portion further correspond to a spiral path of the coil spring, and at least one upper threading hole and a lower threading hole which are vertically aligned non-linearly are provided; the coil spring The two ends of the buckle are respectively passed through the upper threading hole and the lower threading hole, and the two buckle joints are respectively connected to one end of the coil spring; When the hooks are respectively hooked on the object, the connecting portion of the buckle joint and the end of the coil spring are formed by the upper and lower threading holes on at least one spring strip wound around the coil spring coil. Synchronous output point or action point, so that the tensile elastic element is applied to the object by the elastic force of the object after stretching or stretching, which can effectively ensure the sensitivity of the force transmission reaction, and can also avoid improper deformation or breakage. It happens. The structure of the tensile elastic recovery element according to claim 1, wherein the buckle joint is formed by a steel plate material, and the joint portion having the upper and lower threading holes and the near-C hook are formed by stamping or forging. The buckle is connected to the coil spring, and the coil spring can utilize the excellent deformation resistance and breaking strength of the buckle joint, and the tensile force or stable force of the receiving object is stabilized. Resilience is transmitted to the object. The structure of the tensile elastic recovery element according to the first aspect of the invention, wherein the fastening portion of the buckle joint has an upper threading hole and a lower threading hole corresponding to the coil spring path of the coil spring. The front and rear holes of the upper threading hole and the lower threading hole are slightly larger than the one-half pitch of the coil spring; when the two ends of the coil spring are respectively on the joint portion of the buckle joint, the winding is passed through the When the upper and lower threading holes are completed and the buckle joint is connected on the coil spring, The upper and lower threading holes are used to extend the strong clamping force generated by the spline length of the end of the coil spring, so that the buckle joint can be firmly fixed at the end position of the coil spring for a long time.