TWI413600B - Quick-release device - Google Patents

Abstract

A quick-release device includes a tubular structure and a pusher mounted on one end of the tubular structure. The pusher includes a sleeve inwardly formed with a flange. A shaft has a first end longitudinally connected to the tubular structure and a second extending through the sleeve. A block is sleeved on the shaft after the shaft extending through the sleeve. The block has a first side abutting against the flange and a second side having a curved groove defined therein. A pivot is transversely mounted to the second end of the shaft for pivotally assembling a lever that has a cam structure for pushing the block when the lever is wiggled.

Description

Quick release structure

The invention relates to a quick release structure which is arranged on the front fork; in particular, a quick release structure which can achieve the advantages of quick disassembly and also convenience and stability.

As shown in the seventh to eighth figures, there is a quick release structure applied to the front fork (4); the front fork (4) has a first tube body (not shown) and a second tube body. (41) The bottom end of the first pipe body is provided with a threaded hole, and the bottom end of the second pipe body (41) is provided with a through hole (410).

The quick release structure is provided with a connecting rod (5) penetrating through the through hole (410) of the second pipe body (41), and one end of the connecting rod (5) is provided with a threaded hole corresponding to the first pipe body. The threaded section (50), the opposite end of the connecting rod (5) is provided with a head (51) larger than the cross-sectional area of the shaft, and the top surface of the head (51) is provided with a recessed area (510), which is placed on the head (51). The circumference of the ring naturally forms a ring wall (511), and a ring hole (512) is formed in the ring wall (511). In the center of the recessed area (510) of the head (51), a shaft hole (52) is connected to one end of the connecting rod (5), and the joint between the shaft hole (52) and the recessed area (510) is formed. For a tapered surface (520), an internal threaded section (53) is provided at an appropriate position on the inner wall of the shaft hole (52). The head portion (51) and the connecting rod (5) adjacent to the head portion (51) are provided with a margin groove extending in the axial direction and not being smaller than the inner thread portion (53) of the shaft hole (52). ).

A pressing unit is provided at the head (51). The pressing unit comprises: an eccentric grip (6), one end of which has a pivot hole (60) extending through two sides of the eccentric grip (6), and the end is simultaneously extended with a radial extension along the pivot hole (60) a locking slot (61), the pivot hole (60) is provided with a locking member (62), and the locking member (62) defines a radial receiving hole (620); a rod body (7), one end of which is placed in the receiving hole (620) of the locking member (62), so that the eccentric grip (6) is pivoted on the rod body (7), and the rod body (7) is provided at a different end a female threaded section (70) corresponding to the internal thread section (53), a surface of the rod body (7), and a sliding groove (71) formed in the axial direction; and a pressing block (8) The compact block (8) is sleeved on the rod body (7), and has a large and small two-diameter section. At the intersection of the two circular diameter sections, a cone shaped to accommodate the front taper surface (520) is formed. a segment (80), at a periphery of the large circular diameter section, extending radially outwardly from a retaining edge (81) for abutting the recessed portion (510), extending toward the axial direction at a periphery of the small circular diameter section Forming a collar portion (82) by which the sliding groove (71) is covered, and a ball (83) is disposed between the collar portion (82) and the sliding groove (71), and the collar portion (82) The sleeve is provided with a retaining ring (84).

When the rod body (7) is screwed to the connecting rod (5), the eccentric grip (6) is rotated to abut against the large circular diameter section of the pressing block (8), so that the rod body (7) can be sleeved. The upper pressing block (8) acts on the ball (83) between the collar portion (82) and the sliding groove (71) to form an axial slip, further making the pressing block (8) tapered. The segment (80) abuts against the tapered surface (520) of the connecting rod (5), causing the connecting rod (5) to form an expansion effect therethrough, thereby abutting against the through hole (410) of the second tubular body (41) The edge is used to create a pressing effect, thereby allowing the quick release structure to be positioned on the front fork (4).

However, the above-mentioned conventional quick-release structure, although having a general quick-release structure, does not have a quick release. Because the threaded section (50) of the connecting rod (5) is screwed to the threaded hole of the first pipe body, the eccentric grip (6) must be used when the operating connecting rod (5) is rotated. As the point of application, the eccentric grip (6) is pivoted on the rod (7), and can not directly drive the rod (7) to rotate. The slot (512) is additionally formed by the connecting rod (5) head (51), and is clamped to the slot (512) by the eccentric grip (6) being reversely pressed to drive and link. The rod (5) integrally formed with the head (51) can then rotate the entire connecting rod (5) to rotate, and then screw into the threaded hole of the first tube; then the eccentric grip (6) is forwardly pulled Pressing, by its eccentric action, pushes the tapered section (80) of the pressing block (8) into the tapered surface (520), and abuts the expanded section of the connecting rod (5) The inner edge of the hole (410) is bored to achieve the effect of positioning the front fork (4).

It can be seen that the eccentric grip (6) of the quick release structure has the function of expanding the connecting rod (5), and has no effect of clamping and fastening, so the positioning effect is less accurate, and the stability is Security is also greatly affected.

In view of this, the main object of the present invention is to provide a quick release structure, in order to achieve the effect of rapid disassembly under the basic principle of convenience and stability.

According to the above object, the quick release structure of the present invention mainly comprises: a connecting shaft tube, the outer edge surface of one end thereof is provided with an external thread segment, and the outer edge surface of the opposite end is provided with an abutting ring portion, and the abutting ring portion The outer edge is provided with a recessed portion, and the connecting shaft tube is provided with a shaft hole, the shaft hole is disposed at an end of the abutting ring portion, and is provided with an internal thread segment; and a fastening mechanism is disposed on the connecting shaft tube The accommodating mechanism includes: a moving portion, further comprising: a sleeve, wherein the accommodating hole is provided with a protrusion extending radially inward. The protruding center is provided with a through hole; a ring is sleeved on the connecting shaft tube and fixed to one end of the sleeve, and the inner edge of the ring is provided with a protruding portion that can be matched with the concave portion And a reset spring member is disposed between the sleeve and the collar, one end of which abuts against the abutment, and the different end abuts against the connecting shaft tube; a shaft rod is disposed on the sleeve of the sleeve, the shaft The rod is disposed at one end of the connecting shaft tube, and has an externally threaded section which can be screwed correspondingly to the inner threaded section of the connecting shaft tube, and the different end is provided with an internally threaded hole; The block is abutted against the protrusion of the sleeve, and one side of the block is provided with an abutting arc surface, and the center of the block is provided with a through hole abutting the arc surface for the shaft to pass through; and a pivot joint is located at the block The block is disposed at one end of the abutting surface, and a radial through hole is formed on the outer edge surface thereof, and the connecting member is locked to the threaded hole of the shaft through the through hole, so that the shaft and the pivot joint are connected into an integrated state. And a wrench having an ear portion at one end and an eccentric pivot hole on the ear for pivoting the pivot joint, the ear portion being formed to abut the card block with respect to the side edge of the eccentric pivot hole Abuts the abutment of the curved surface.

According to this design, the user can use the protruding portion and the recessed portion to engage the connecting shaft tube to the bottom of the first tube body of the front fork, and then pull the wrench to drive the pushing portion of the securing mechanism. The surface of the second pipe body of the front fork can be connected to form a function of abutting and fixing; when dismantled, the lifting mechanism can be released by pulling the wrench to release the pushing portion and leave the second pipe body, and then the utility can be removed. The quick-release structure, under the basic principle of convenience and stability, truly achieves the effect of quick disassembly.

In order to enable the reviewing committee to have a better understanding and recognition of the structural features and functions of the present invention, the following preferred embodiments are illustrated and described with reference to the drawings.

Please refer to the first to sixth figures. The first drawing discloses a perspective view of a preferred embodiment of the present invention; the second figure discloses a set up body diagram of the first embodiment; the third figure shows the set up body diagram of the second embodiment; and the fourth figure shows a preferred embodiment. FIG. 5 is a schematic cross-sectional view (1) of the first embodiment, and a schematic view of the handle to the open position; and the sixth figure discloses the first embodiment. Schematic diagram of the section (2), and a schematic diagram of the lever to the closed position.

The quick release structure of the present invention mainly comprises a connecting shaft tube (1), a set of abutting mechanism (2) disposed at one end of the connecting shaft tube (1), and a different end coupled to the securing mechanism (2) The wrench (3).

The connecting shaft tube (1) is provided with an outer threaded surface (14) for engaging the front fork (4), and an outer end surface of the opposite end is provided with an abutting ring portion (11). The outer edge of the abutting ring portion (11) is provided with a plurality of recessed portions (110), the end surface of the recessed portion (110) is provided with a concave curved surface; and the end of the recessed portion (110) The edge may be a flat state, or as shown in the first embodiment, the inclined end of the end face of the connecting shaft tube (1) is inclined toward the opposite end to facilitate the introduction of the matching mechanism. In the connecting shaft tube (1), a shaft hole (10) axially extending through the two end faces is formed, and the shaft hole (10) is adjacent to the abutting ring portion (11), and is provided with a class portion, the class The section can be divided into a large diameter section (12) and a small diameter section (13). The large diameter section (12) can be used as a guide correction for the aperture center when the joint is engaged, and the inner diameter wall of the small diameter section (13) is set. There is an internal thread section (130).

The securing mechanism (2) comprises a pushing portion (20), a shaft (24), a block (25) and a pivot joint (26) concentrically combined.

The pushing portion (20) is disposed at one end of the connecting shaft tube (1) provided with the abutting ring portion (11), and comprises a sleeve (21), a set of rings (22) and a resetting member (23) ). An inner side of the sleeve (21) has a receiving hole (210) extending axially through the two ends, and a radially inwardly extending protrusion (211) is disposed on the inner wall surface of the receiving hole (210). At the center of the Turkic (211), there is a through hole (212). The inner wall surface of the receiving hole (210) at one end of the sleeve (21) is provided with at least one engaging groove (213) on the circumference of the opposite end of the sleeve (21), as shown in the second figure, There is a clamping piece (214) extending in the axial direction for fixing the wrench (3); or as shown in the third figure, a circumference of one end of the sleeve (21) may also be recessed with a concave opening (215) ) for accommodating and positioning the wrench (3). The collar (22) is sleeved on the connecting shaft tube (1) and placed at one end of the sleeve (21) provided with the engaging groove (213), the collar (22) is opposite to the engaging groove (213) On one side, a protruding ring portion (220) extends from the periphery of the protruding ring portion (220), and a protrusion (221) corresponding to the engaging groove (213) is provided to make the sleeve (21) and the collar ( 22) can be combined into an integrated state, at the inner edge of the collar (22), and provided with a plurality of protrusions (222) that can be engaged with the recessed portion (110), the end of the protrusion (222) is provided There is an arc convex surface which can be matched with the recessed portion (110); further, the end edge of the protruding portion (222) is formed into a flat or oblique direction which can be matched with the recessed portion (110) In the case of the person, the introduction is introduced into the recess (110). The returning elastic member (23) is in a tapered state, and the cone bottom of the reducing elastic member (23) abuts against the side of the protrusion (211), and the tapered top of the reducing elastic member (23) abuts against the connecting shaft tube (1) The end face, 俾 provides an elastic restoring force that forces the sleeve (21) to reset.

Wherein, the recessed portion (110) and the protruding portion (222) in the preferred embodiment are respectively formed by radially equidistant distribution and are mutually compatible (such as (110a) of the fourth figure (A) and (222a)); however, other geometric designs, such as triangles or hexagons (such as (110b) and (222b) of Figure 4(B)), or sawtooth patterns (such as The (110c) and (222c)) of the four figures (C) can be used to achieve a mutually compatible effect.

The shaft (24) is disposed in the pushing portion (20), and a surface of the outer edge of the shaft (24) is provided with a resisting ring portion (240) protruding from the surface, thereby correspondingly abutting the connecting shaft The large diameter section (12) of the tube (1), the shaft (24) is located at one end of the coupling shaft tube (1), and is provided to be screwed to the internal thread section (130) of the coupling shaft tube (1). The threaded section (241) and the end face of the different ends of the shaft (24) are provided with an internally threaded hole (242).

The block (25) is located at one end of the shaft (24) provided with an internally threaded hole (242), and a side of the block (25) abuts against the protrusion (211) of the sleeve (21). The opposite side of the block (25) is concavely provided with a curved arc-shaped abutting surface (250), and the center of the block (22) is provided with a through-abutment curved surface (250) and a different side surface. Perforation (251) for the shaft (24) to pass through the block (22).

The pivot joint (26) is located at one end of the clamping block (25) adjacent to the abutting curved surface (250). The outer surface of the pivot joint (26) has a surface extending through the pivot joint (26) in the radial direction. a through hole (260) that is concentric with the through hole (251) of the shaft (24) passing through one end of the block (25), and can be reversely connected by a coupling member (261) The hole (260) is locked to the internally threaded hole (242) of the shaft (21), and the shaft (24) and the pivot joint (25) are coupled into an integrated state; thereby forming the restraining member (2).

The wrench (3) is coupled to the pivot joint (26) of the securing mechanism (2), and the end of the wrench (3) is provided with two ears (30), and the different ends extend to form a handle. (31). Corresponding eccentric pivot holes (300) are respectively formed on the ear portions (30) for pivotally connecting the pivot joints (23), and the ear portions (30) are opposite to the side edges of the eccentric pivot holes (300). Forming an abutting portion (301) that can abut against the abutting curved surface (220) of the card block (22); in the first embodiment, the handle (31) is disposed on the surface of the ear portion, and the opening is provided The cassette (310) corresponding to the cassette can be corresponding to the cassette (214).

Please refer to the first, fifth and sixth figures, together with the second figure. The first figure discloses a set of body diagrams in which the preferred embodiment of the present invention is combined with the front fork; the fifth and sixth figures respectively show a schematic cross-sectional view of the first embodiment, and the handle is turned to the open and closed positions. Schematic diagram of the time.

The present invention is installed at a bicycle front fork (4); the front fork (4) is provided with a first tube body (40) and a second tube body (41) extending downwardly toward both sides, respectively. 1. The ends of the second tubes (40) and (41) are respectively provided with a threaded hole (400) and a through hole (410).

The structure of the first embodiment will be described below in conjunction with the principle of operation of the present invention.

First, the connecting shaft tube (1) is placed between the through hole (410) and the threaded hole (400), and the wrench (3) is pulled to the open position to release the securing mechanism (2), at this time the sleeve ( 21) According to the elastic resetting action of the resetting elastic member (23), the driving block (25) is pushed outwardly against the wrench (3), and the protruding portion (222) of the collar (22) and the connecting shaft tube are The recessed portion (110) of (1) is brought into a fitted state, so that the pushing portion (20) is not disengaged from the connecting shaft tube (1), and the latching piece (214) on the sleeve (21) is extended to the pulling plate. In the latching slot (310) of (3), the user can play the latching action, so that the user can rotate the sleeve (21) by the handle (31), and cooperate with the protruding portion (222) and the concave portion. The connecting portion (110) further drives the connecting shaft tube (1) to rotate, and the connecting shaft tube (1) is screwed to the threaded hole (400) of the first tube body (40) to lock the fixed position; A spacing is formed between the pushing portion (20) and the second tube body (41).

After the lock is fixed, the toggle (3) is pivoted in the reverse direction. At this time, the abutment portion (301) of the ear portion (30) is turned to abut the contact block (25) by the design of the eccentric pivot hole (300). The abutting curved surface (250), according to the pushing block (25), drives the pushing portion (20) to move toward the connecting shaft tube (1), and the cone between the sleeve (21) and the connecting shaft tube (1) The spring (203) is pressed and deformed by the protrusion (211); until the wrench (3) is pulled to the closed position, the collar (22) of the pushing portion (20) abuts against the second tube (41) The surface of the outer edge forms a pressing state, and the effect of clamping and fixing the quick release structure to the front fork (4) is achieved.

To unravel, pull the wrench (3) back to the open position, and let the abutting portion (301) of the wrench (3) leave without pushing against the abutting surface of the block (25) ( 250), at the same time, according to the elastic restoring force of the reset elastic member (23), forcing the pushing portion (20) and the block (25) to be reset again, the fixing mechanism (2) can be released, and then the connection can be unscrewed. The shaft tube (1) achieves the effect of quickly removing the quick release structure.

In summary, when the invention is disposed on the front fork (4), the clamping action of the clamping piece (214) of the sleeve (21) and the locking groove (310) of the wrench (3) can be performed. Cooperating with the recessed portion (110) and the protruding portion (222), the connecting shaft tube (1) is first screwed to the first tube body (40) by the wrench (3), and then the wrench is pulled ( 3), driving the pushing portion (20) to abut the outer edge surface of the second pipe body (41), thereby forming an effect of abutting and fixing; when removing, pulling the wrench (3) to release the fixing mechanism (2), the reset portion (20) is reset and separated from the second tube body (41), and the connecting shaft tube (1) can be unscrewed to remove the quick release structure; accordingly, it can be conveniently, Under the basic principle of solidity, it really achieves the effect of quick disassembly.

The above description is only for the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the embodiments of the present invention. Changes that are well known to those skilled in the art are still within the scope of the invention.

this invention:

1. . . Connecting shaft tube

10. . . Shaft hole

11. . . Reaching the ring

110. . . Recessed part

12. . . Large diameter section

13. . . Small diameter section

130. . . Internal thread segment

14. . . External thread segment

2. . . Relief institution

20. . . Shift

twenty one. . . Sleeve

210. . . Capacitor

211. . . Turkic

212. . . Through hole

213. . . Engagement slot

214. . . Card sheet

215. . . Concave mouth

twenty two. . . Collar

220. . . Ring

221. . . Bump

222. . . Protruding

twenty three. . . Reset spring

twenty four. . . Shaft

240. . . Protruding

241. . . External thread segment

242. . . Internal threaded hole

25. . . Block

250. . . Abutting curved surface

251. . . perforation

26. . . Pivot joint

260. . . Through hole

261. . . Bonding component

3. . . Toggle

30. . . Ear

300. . . Eccentric pivot hole

301. . . Abutment

31. . . handle

310. . . Card slot

4. . . Fork

40. . . First tube

400. . . Threaded hole

41. . . Second tube

410. . . Hole through

Custom creation:

4. . . Fork

41. . . Second tube

410. . . Hole through

5. . . Connecting rod

50. . . External thread segment

51. . . head

510. . . Sag area

511. . . Ring wall

512. . . Slot

52. . . Shaft hole

520. . . tapered surface

53. . . Internal thread segment

54. . . Margin slot

6. . . Eccentric grip

60. . . Pivot hole

61. . . Slot

62. . . Locking device

620. . . Socket hole

7. . . Rod body

70. . . External thread segment

71. . . Chute

8. . . Tight block

80. . . Conical section

81. . . Retaining edge

82. . . Collar

83. . . Ball

84. . . Buckle

First drawing: a perspective view of a preferred embodiment of the invention;

Second figure: a set of body maps of the first embodiment of the present invention;

Third figure: a set of body diagrams of a second embodiment of the present invention;

Fourth: a schematic plan view of an embodiment of the recessed portion and the protruding portion of the present invention;

Figure 5 is a cross-sectional view (1) of the first embodiment of the present invention, and a schematic view of the handle to the open position;

Figure 6 is a cross-sectional view (2) of the first embodiment of the present invention, and a schematic view of the handle to the closed position;

Figure 7: Schematic diagram of the sketch of the custom creation (1);

Figure 8: Schematic diagram of the sketch of the custom creation (2).

1. . . Connecting shaft tube

10. . . Shaft hole

11. . . Reaching the ring

110. . . Recessed part

12. . . Large diameter section

13. . . Small diameter section

130. . . Internal thread segment

14. . . External thread segment

2. . . Relief institution

20. . . Shift

twenty one. . . Sleeve

210. . . Capacitor

211. . . Turkic

212. . . Through hole

213. . . Engagement slot

214. . . Card sheet

twenty two. . . Collar

220. . . Ring

221. . . Bump

222. . . Protruding

twenty three. . . Reset spring

twenty four. . . Shaft

240. . . Protruding

241. . . External thread segment

242. . . Internal threaded hole

25. . . Block

250. . . Abutting curved surface

251. . . perforation

26. . . Pivot joint

260. . . Through hole

261. . . Bonding component

3. . . Toggle

30. . . Ear

300. . . Eccentric pivot hole

301. . . Abutment

31. . . handle

310. . . Card slot

Claims (10)

The quick-release structure mainly comprises: a connecting shaft tube, the outer edge surface of one end thereof is provided with an external thread segment, and the outer edge surface of the different end is provided with an abutting ring portion, and the outer edge of the abutting ring portion is provided a recessed portion, the connecting shaft tube is provided with a shaft hole, the shaft hole is disposed at an end of the abutting ring portion, and is provided with an internal thread segment; and a fastening mechanism is disposed on the connecting shaft tube and is provided with an abutting ring The one end portion of the portion includes: a pushing portion, further comprising: a sleeve, wherein the receiving hole is provided with a receiving hole, wherein the receiving hole is provided with a radially inwardly extending protrusion, the protruding center a piercing hole is provided; the ring is sleeved on the connecting shaft tube and fixed to one end of the sleeve, and the inner edge of the ring is provided with a protruding portion that can be engaged with the recessed portion; and a reset The elastic member is disposed between the sleeve and the collar, and one end abuts against the abutment, and the different end abuts against the connecting shaft tube; a shaft is disposed in the receiving hole of the sleeve, and the shaft is adjacent to the connecting rod One end of the shaft tube is provided with an externally threaded section which can be screwed correspondingly to the inner threaded section of the connecting shaft tube, and one end of the shaft tube is provided with an internally threaded hole; The tube is abruptly arranged, and one side of the block is provided with an abutting arc surface, and a center of the block is provided with a through hole for abutting the curved surface for the shaft to be worn; and a pivot joint is located at the block to be in the abutting arc One end of the surface is provided with a radial through hole through which the coupling member is locked to the threaded hole of the shaft through the through hole, so that the shaft and the pivot joint are integrated into one body; and a wrench, An ear portion is disposed at one end thereof, and an eccentric pivot hole is disposed on the ear portion for pivoting the pivot joint, and the ear portion is abutted against the side edge of the eccentric pivot hole to form abutment against the abutting arc surface of the card block unit. The quick release structure according to the first aspect of the patent application, wherein a sleeve end extends from a peripheral end of the sleeve; and the handle has a latching groove corresponding to the latch of the clip. The quick release structure according to the first aspect of the patent application, wherein one end of the sleeve is recessed with a recessed opening for receiving the wrench. The quick release structure according to claim 1, wherein the sleeve is provided with at least one engagement groove with respect to an inner edge of the receiving hole at one end of the collar. The quick release structure according to claim 4, wherein the collar extends with a protruding ring portion with respect to one end of the engaging groove, and a peripheral edge of the protruding ring portion is provided with a protrusion which can be inlaid corresponding to the engaging groove, The sleeve is coupled to the collar. The quick-release structure according to the first aspect of the patent application, wherein the recessed portion is a plurality of radially distributed equidistantly distributed on the outer edge of the abutting ring; the protruding portion is a plurality of Radially equidistantly distributed on the inner edge of the collar to be compatible with the recessed portion. The quick-release structure according to the sixth aspect of the invention, wherein the concave portion has a concave curved surface on an end surface thereof; and an end surface of the protruding portion is provided with an arc convex surface corresponding to the concave portion. According to the quick release structure of claim 7, wherein the recessed portion and the end edge of the protruding portion are formed in an oblique manner that can be matched with each other. According to the quick release structure of claim 7, wherein the recessed portion and the end edge of the protruding portion are formed into a flat state which can be matched with each other. The quick-release structure according to the first aspect of the patent application, wherein the shaft hole of the connecting shaft tube is adjacent to the abutting ring portion, and has a class portion including a large diameter section and a small diameter section; The inner thread segment is provided on the inner wall surface of the small diameter section; the outer edge surface of the shaft is provided with an abutting ring portion protruding from the surface to abut the large diameter section.