TWI325840B - - Google Patents

Description

IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a quick release, in particular to a quick release that is smooth and labor-saving in use. [Prior Art] Referring to Figures 1 and 2, the existing one The quick release i has a shaft u, a first seat 13 disposed at an opposite end of the shaft u, a handle 13, and a movably sleeved shaft u, and located at the first fixed a second mount 14 between the seat I2 and the handle π. The handle 13 has a cam block 131 ′ which is eccentrically pivotally connected to the shaft 11 along an axis 1 perpendicular to the shaft u, and abuts against the second fixing; t 14 and a cam block An extended operating lever 132 having two circumferentially spaced circumferential surfaces formed around the axis τ and a space formed between the two circumferential surfaces 133 for receiving the shaft u Room 134. The second fixing base 14 has two receiving faces ι 41 which respectively abut against the two circumferential surfaces 133 of the cam block 131. The quick release 1 is a mounting accessory for achieving a quickening and loosening effect on a bicycle or other mechanical device, for example, when the quick release is used for mounting on a bicycle hub 101 and a second shelf 1 In the case of 〇2, the first fixing seat 12 and the second fixing seat μ are respectively abutted on the outer side of the second frame 1〇2, and when used, the operating lever 132 of the handle 13 is pulled forward or reversely. The cam block 131 can be eccentrically rotated about the axis, so that the two-wheel circumferential surface 133 is unequal in diameter with the axis I, so that the two-wheel circumferential surface 133 is pushed against the two receiving surfaces 141. The second fixing base 14 can be displaced along the shaft 1 靠 toward or away from the first fixing seat 12 to change the spacing of the first and second fixing seats 12 and 14 to finally make the second frame 1 The 〇 2 is capable of producing a tight or loose use effect relative to the hub 101. Although the quick release 1 has the effect of quickly completing the tightening or loosening, there are still the following defects in practice: 'The f夬1 is used to tighten the lock, the lever applied to the handlebar The force of the 132 must be sufficient for the two-wheel circumferential surface 133 of the cam block 131 to slide relative to the two receiving surfaces of the second fixing seat 14 to directly push the second fixing seat 14 by the cam design. Displacement toward the first fixing seat 12, therefore, the force must be greater than the sliding friction between the two-wheel circumferential surface and the two receiving surface M1, and further, since the cam block 131 is eccentrically rotated relative to the axis I, the The radius of curvature of the two-wheel circumferential surface 133 also fails to maintain a perfect fit with the two receiving surfaces 142 as the rotation process changes, and a torsional moment is formed between the two, resulting in a smooth sliding, resulting in an increase in force. Overcoming the torque moment, the handle 13 is liable to be difficult to handle during the pulling operation, and a large force needs to be applied to complete the tightening. Referring to Figures 3 and 4, there is another prior art quick release 2 in the U.S. Patent No. 5,865,56, which is mainly intended to overcome the aforementioned quick release (see figure) for application when forced. a large force and a disadvantage that the pulling process is not smooth. The quick release 2 has a shaft 21, a first fixing seat 22 disposed at opposite ends of the shaft, and a handle 23, and a movable portion Wearing the shaft 21 and the 1325840 second fixing seat 24 between the first fixing seat 22 and the handle 〇, and a sliding contact between the second fixing seat 24 and the handle 23 The shaft 21 has a first end portion 211 for connecting the first fixing base 24, and a second end portion 212 for pivotally connecting the handle 23. The second end portion 212 is The U-shaped portion is shaped again, and has two arms 213 parallel to the shaft 21, a connecting wall 214 connecting the two arms 213, and a limit defined by the two arms 213 engaging with the connecting wall 214. a space 215, the handle 23 is pivotally connected between the two arms 213. The handle 23 has an eccentric pivotal relationship along the axis π perpendicular to the shaft 21 A cam block 231 between the arms 213 and a lever 232 extending from the cam block 231, the cam block 231 having a wheel peripheral surface 233 formed around the axis and abutting against the slider 25. The second fixing base 24 has a ring wall 24 defining a guiding hole 242 around the two arm 213, and the ring wall 241 has a ring end surface 243 disposed toward the cam block 231. The cymbal slider 25 has a The body portion 251 is trapezoidal in shape and accommodated in the limiting space 215 of the second end portion 212, and a second mounting seat 24 is horizontally displaced from the body portion 2 The insertion portion 252' in the guiding hole 242 has a width smaller than the diameter of the guiding hole 242, and the width of the body portion 251 is larger than the diameter of the guiding hole 242, and has a The wheel peripheral surface 233 of the cam block 231 corresponds to the receiving surface 253 of the yoke, and two contact surfaces 254 which are opposite to the receiving surface 253 and are spaced apart from each other on the ring end surface 243 of the ring wall 241. In use, the cam block 231 is driven by the operating lever 7 1325840 232 that pulls the handle 23 in the forward or reverse direction. The axis II rotates to push the sliding member 25 to be displaced by the wheel peripheral surface 233, and further moves the second fixing seat 24 toward or away from the first fixing seat 22 through the sliding member 25. Further, the purpose of use of the tightening or anger is completed. Although the slider 25 is disposed between the cam block 231 and the second fixing seat 24, when the quick release 2 is used for the locking, the cam block The wheel circumferential surface 233 of the 231 acts on the receiving surface 253 to push the slider 25

The horizontal movement enables a better running-in state between the circumferential surface 233 of the wheel and the receiving surface 253 to form a smooth relative sliding, thereby reducing the occurrence of a torque moment, and making the existing quick release 2 relatively smooth. Labor saving, but in fact there are still the following missing:

The sliding member 25 @ displacement range is still limited. When the sliding member 25 has been pushed to the return position of the displacement range, the material handle 23 has not been pulled to the pressing position, and then the handle 23 is still pulled to form the same. The circumferential surface 233 of the wheel cannot slide smoothly with respect to the receiving surface 253 to generate a torsional moment. In addition, during the process of pulling to the pressing position, since the two contact faces 254 of the sliding member 25 are also opposed to the ring wall The ring end surface 243 of the 241 slides to form a sliding friction. (4) The force applied to the operating rod 232 of the handle 23 overcomes the sliding friction between the wheel circumferential surface 233 and the receiving surface 254, and also overcomes the two contact. The sliding friction between the surface 254 and the end surface 243 of the ring makes the current quick release 2 more economical and effective. The invention is still not ideal, and there is a need for further improvement. Therefore, the object of the present invention is to provide a quick release that is less labor-intensive. The slider can be smoothly pulled 8 1325840. Thus, the quick release of the present invention comprises a shaft, a first fixing seat respectively disposed at opposite ends of the shaft, a handle, a movably sleeved on the shaft, and located at a second fixing seat between the first fixing seat and the handle, and at least one rolling member that is rollably sandwiched between the second fixing seat and the handle. The shaft extends along a longitudinal axis and includes a first end portion, a second end portion disposed oppositely, and a shaft portion coupled between the first and second ends. The first solid seat is screwed to the first end of the shaft. The handle of the s--the horizontal axis perpendicular to the longitudinal axis is eccentrically pivoted to a cam seat at the first end of the shaft, and an operating rod extending radially outward from the cam seat and the cam seat Having a circumferential surface around the transverse axis, the first fixed seat can be slidably coupled to the first end of the shaft π丨& The abutting surface of the seat and the receiving surface spaced apart from the circumferential surface of the handle and corresponding to the bearing surface. The rolling members each include a rolling surface respectively abutting the receiving surface and the circumferential surface of the wheel. When the operating lever of the handle is rotated, the cam seat is rotated about the horizontal axis to push the rolling member. The rolling surface is divided into two circumferential surfaces and the bearing surface, and then the second fixing seat is displaced relative to the first fixing U to the pressing position and the releasing position. The utility model has the advantages that the second fixing seat is in contact with the bearing surface in the form of rolling friction 9 1325840, and the cam design drive of the cam seat is used to push the rolling member, and the The second seat and the first-to-seat (four) 16 to the use function of the return and release 'other friction coefficient due to rolling friction = sliding friction, moving friction, etc., and the rolling mode can be / 4 mesh mutual contact In the case where the interface is not smooth, the torque can be reduced, and the invention has the advantages of smoother and more labor-saving operation. [Embodiment]

The foregoing and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. DETAILED DESCRIPTION OF THE INVENTION Before the present invention is described in detail, it is to be noted that the same elements are denoted by the same reference numerals.

Referring to Figures 5, 6 and 7', a first preferred embodiment of the quick release 3 of the present invention comprises an i-bar 4, a first solid seat 5, a handle 6, and a first end respectively disposed at opposite ends of the shaft 4. a second fixing base 7 movably sleeved on the shaft 4 and located between the first fixing base 5 and the handle 6, and a rollably clamped on the second fixing base 7 and the handle 6 between the rolling elements 8. The shaft 4 extends along a longitudinal axis 并 and includes a first end portion 41 and a second end portion 42 disposed in opposite directions, and is coupled to the first and second end portions 41, 4·2. The shaft portion 43 between. Wherein the second end portion 42 is a split υ-shaped block type comprising a base 421 coupled to the shaft portion 43 and two arms extending upwardly from the base 421 in parallel along the longitudinal axis 111 422, the base body 421 and the two-legged arm 422 cooperate to define a limiting space 423, and each of the arm 422s 10 1325840 has a pivot hole extending along a transverse axis IV perpendicular to the longitudinal axis 々 Hey. The first mount 5 is removably threaded to the first end 41 of the shaft 4. The handle 6 includes a cam seat 61 eccentrically pivotally connected to the second end portion 42 of the shaft 4 along the transverse axis IV, and an operating rod 62 extending radially outward from the cam base 61, and the cam seat 61 has a wheel circumferential surface 611 disposed around the horizontal axis ^. The cam base 61 is pivotally connected between the two ends 422 of the shaft 4 and has a positioning hole (1) aligned with the two pivot holes 424. In addition, the handle 6 further includes a second insertion hole. The pivot hole 424 and the pivot hole 63 of the positioning hole 612. The second seat 7 is slidably coupled to the shaft 4 along the shaft 4: two end portions 42 including a correspondingly engaged one of the splicing blocks 7 abutting the rolling member And a ring block π for positioning the engaging block 71, the ring block 72 has an inner peripheral surface 72 around the longitudinal axis m--the guiding hole ^ is spaced from the inner peripheral surface 721 The outer peripheral surface 723, an abutting surface 724 connected to the inner and outer peripheral surfaces 721 and 723 and facing the first fixed seat 5, a ring end surface 725 opposite to the abutting surface 724, and two respectively The position of the limiting space 423 of the shaft 4 is formed at a notch 726 of the ring end surface m, and the two concave σ 726 respectively extend from the ring end surface m toward the abutting surface 724 by a predetermined length and penetrate through The inner and outer peripheral claws 723, the engaging block 71 has a main body portion 7U and two that are accommodated in the limiting space of the shaft *, respectively, and extend outward from opposite sides of the main body portion 711. The engaging portion 712 of the limiting space 423 is extended, and the two engaging portions 712 are respectively engaged with the two concave σ of the ring block 72, and the main body portion 11 is

丄: >Z:) 64U 7Π and forming a bearing surface 713 spaced apart from the handle 6 circumferential surface 611 and corresponding to the abutting surface 724, and having a predetermined curvature and The inner surface of the rolling member 8 is complementary to the shape of the inner groove 0. The rolling member 8 includes a y\. PI ^ .v knife and a rolling surface 81 abutting the receiving surface 713 and the circumferential surface 611 of the wheel, and is prepared The social worker and the receiving surface 713 are in the shape of an inner groove complementary to the rolling surface 81. The fly lever 62 of the handle 6 is turned

When the cam holder 61 is driven around the cylinder Τλ/姑& The horizontal axis IV is rotated to push the rolling member 8 so that the rolling surface 81 is rolled relative to the wheel 730 and the receiving surface 713, respectively. And the second fixing base 7 is respectively displaced relative to the first fixing seat $ to a pressing position and a releasing position.

It should be noted that the type of the rolling member 8 should not be limited as long as it can be smoothly rolled on the surface as the rolling member 8, in the first preferred embodiment, the scroll #8 Although the axis is parallel to the roller of the horizontal axis iv, and the rolling surface 81 is of a cylindrical surface type, the rolling member 8 may also be a ball whose rolling surface 81 is a spherical type, and the rolling surface can also be utilized. The characteristic that the 81 can roll relative to the receiving surface 713 and the circumferential surface 611 which are in contact with each other makes the frictional force between the interfaces a small rolling friction force, and the handle 6 can be pulled in a labor-saving manner. Preferably, the quick release 3 further includes a cover 9 that is coupled to the outer peripheral surface 723 of the ring block 72. The cover 9 includes an inner casing surface 91 defining an accommodation space 911 around the longitudinal axis. An outer casing surface 92 spaced from the inner casing surface 91, an outer end surface %, an inner end surface 94 connected between the inner and outer casing surfaces 91, 92, and two operating rods 62 along the handle The lengthwise direction 12 1325840 is disposed at a limiting recess 95 of the outer end surface 93. The second limiting recess 95 extends from the outer end surface 93 toward the inner end surface 94 and extends through the inner and outer surface 91, 92. For respectively, the operating lever 62 of the handle 6 is parked to obtain temporary positioning. In the first preferred embodiment, an annular groove 727 is formed on the outer peripheral surface 723 of the ring block 72 so as to surround the longitudinal axis ,, and an inner casing surface 91 of the cover 9 is convexly formed to form a corresponding portion. The snap ring 912 is engaged in the ring groove 727, thereby enabling the cover 9 to be snapped onto the ring block 72 of the first fixing base 7 without being detached, thereby achieving the covering and protecting When the two fixing bases 7, the rolling member 8 and the handle 6, and the effect of providing a beautifying appearance are used, the cam lever 61 can be interlocked by the operation lever 62 that pulls the handle 6 in the direction of the hammer. Rotating about the horizontal axis IV, and driving the rolling member 8 to roll relative to the second fixing base 7 and the cam base 61 to form a rolling interface between the rolling surface 81 and the circumferential surface 611 and the receiving surface 713, respectively. Friction force, and the pressing position and spacing of the force applied to the operating rod 62 to the L-shaped fixing seat 7' to reduce the distance between the second fixing base 7 and the first fixing base 5 by a distance (four) The enlarged release position is applied to the tightening and loosening. Referring to Figures 8 and 9', the main difference between the second preferred embodiment of the quick release 3 of the present invention is that the second end of the shaft 4, the handle 6 and the second mount The type of the 7 and the number of the rolling members are different from the limiting manner, and the remaining members are the same. The second end portion 42 of the shaft 4 is in a rod type, and the quick release includes two separate parts. The cam seat 61 of the handle 6 is spaced apart from the second partition member 8' and the circumferential surface 611 of the cam seat 61 of the handle 6 is: and is spaced around the horizontal axis IV A first wheel face (1) is provided in the other place: the face 614' the first and second wheel faces 613, 614 are correspondingly abutted to a rolling member 8. A solid housing 7 includes a corresponding upper housing 73 and a lower housing 74'. The two housings 73, 74 cooperate to define a circumference

The guiding hole of the second end portion 42 of the shaft #4, and the two s 6 respectively spaced apart from the first wheel surface portion 613 of the cam holder 61, the lower casing 74 has An abutting surface 74 disposed toward the first fixing base 5 and two receiving portions opposite to the abutting portion 741 and corresponding to the cam base 61 (four) one and the second wheel surface portions 613 and 6U The surface 742 'the rolling surface 81 of the two rolling elements 8 abuts between the first wheel surface portion (1) and the receiving surface 742, and between the second wheel surface portion 614 and the fifth sea receiving surface 742.

The one of the slots 76 is defined by the two receiving surfaces 742, and the two limiting surfaces 742 are formed on the limiting surface 731 of the upper casing 73. The two limiting positions φ 731 And extending upwardly, and a surface of the upper casing 73 defines two through holes 732 respectively communicating with the slot, and when the two rolling members 8 are respectively received in the two slots 76 The rolling surface 81 is convexly exposed through the through hole 732 to abut against the first and second wheel surface portions 613 and 614 of the cam seat 61, respectively. The cam seat 61 of the handle 6 further includes a first sidewall 615 and a second sidewall 616 spaced apart from each other, and a connecting wall 617 connecting the first and second sidewalls 615 and 616. The first wheel surface 613, the first The second wheel surface portion 614 is formed on the first and second side walls 615, 616 respectively, and cooperates with the connecting wall 617 to define a chamber 618 for receiving the second end portion 42 of the shaft 4. The first and second sidewalls 615 and 616 further have a first positioning hole 641 and a second positioning hole extending along the horizontal axis IV.

The handle 6 further includes a pivoting block 65 disposed on the first and second positioning holes 641 and 642 of the cam base 61. The pivoting block 65 has a cross (four) along the longitudinal axis. (4) 651, and a second end portion 42 of the (4) 4 defines a threaded portion 4 for screwing into the screw hole 651 for coupling the shaft 4 to the pivoting block 65, and the cam of the handle 6. The seat 61 and the handle 62 are pivotable relative to the pivot block 65 and the shaft*. In the second preferred embodiment, the two rolling elements 8 are all balls, and the rolling surface 81 thereof is of a spherical type, but the type of the two rolling elements 8 should not be limited. The two rolling elements 8 can also be shafts. The heart, the roller type parallel to the horizontal axis Iv can also be driven by the rotation of the cam seat 61 by the interface of the rolling friction, and the second fixing seat 7 is displaced.

The two side walls 615, 616 and the quick release 3 are more easily applied by the force application. The force transmission mode between the handle 6, the rolling member 8 and the second fixing base 7 is the same as that of the first preferred embodiment, but in the second preferred embodiment, it is used. The two rolling members 8' are correspondingly disposed with the first 'second wheel face 613, 614' and the two receiving φ(4) which are in frictional contact with the two rolling members 8, and finally the benefits are: the rolling friction is transmitted in a labor-saving manner. The power is achieved as a result of displacing the second mount 7. In summary, the quick release 3 of the present invention achieves the following advantages and advantages, and indeed achieves the object of the present invention: 15 by providing a k-roller between the second mount 7 and the cam rest 61 of the handle 6 8' can transmit power in a rolling friction manner, thereby enabling the first fixing base 7 to be displaced, and changing the distance between the second fixing base 7 and the first fixing seat 5 to achieve the quick release 3 The use function of pressing and loosening has a small coefficient of friction due to rolling friction with respect to other forms of friction, for example, moving friction, and the rolling surface 81 of the rolling member 8 The design of the cylindrical surface or the spherical surface can also reduce the situation in which the interface with the abutting interface is not smooth, so that the present invention has the advantage that the handle 6, the pulling operation is smooth, and the pressing and loosening can be performed more labor-savingly. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change and modification according to the scope of the present invention and the description of the invention. All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevational view showing a state in which a conventional quick release is used for pressing and loosening relative to a bicycle hub and a second frame; FIG. 2 is a perspective assembled view illustrating the existing Figure 3 is a side view combined view showing a quick release of the US Patent No. 5,865,56; FIG. 4 is a schematic cross-sectional view showing a slider of the quick release in the patent. A second end of a shaft, FIG. 5 is a perspective view of a first preferred embodiment of the quick release of the present invention; FIG. 6 is a side cross-sectional view illustrating the first preferred embodiment. Figure 1 is an incomplete perspective view of the first preferred embodiment without a cover; Figure 8 Is a perspective exploded view illustrating a second preferred embodiment of the quick release of the present invention; and FIG. 9 is a partial cross-sectional view of the quick release assembly, illustrating that in the second preferred embodiment, the two rolling members are The clip is placed between the handle and a second mount. , 17 1325840

[Description of main component symbols] 3 .............]·夬 4 4 ............shaft 41 .......... First end portion 42 ..... second end portion 421 ........ base body 422 ........ fork arm 423 ........ Bit space

424 ........ pivot L 425 ........ thread segment 43..........shaft body 5 ............ First mount 6............handle 61..........cam seat 611 ........round circumference 612 ... .. positioning hole 613........first round face 614........second round face 615........first side wall 616....... The second side wall 617 ..... connection wall 618 ..... chamber 62 .......... operating rod 63 .......... Frame Post 641 642 65·· 651 7···. 71 ·· 711 712 713 72·· 721 722 723 724 725 726 727 73·· 731 732 74·. 741 742 First positioning hole second positioning hole is connected Block screw hole second fixing seat embedding block body portion engaging portion receiving surface ring block inner peripheral surface guiding hole outer peripheral surface abutting surface ring end surface notch ring groove upper sleeve housing limiting surface through hole lower sleeve housing Joint receiving surface 18

L 1325840 75 .......... Guide hole 76 ..........Slot 8 ............ Rolling member 81..... ..... rolling surface 9 ............ cover 91.......... inner shell surface 911........ housing space 912. ....... snap ring strip 92 .......... outer surface 93 .......... outer end surface 94 .......... inner end surface 95 .......... Limit notch III .......... Vertical axis IV .......... Horizontal axis

19

Claims (1)

丄10, the scope of application for patents: 1. A quick release, comprising: a shaft, is, VL ~ "longitudinal axis extension, and includes a reverse set of the first: the second part, - the second end, and a connection a shaft portion between the first and second ends; a first fixing seat, the ramie thread is screwed to the first end of the shaft; a handle, a twist, ,, 〜〜—the horizontal axis perpendicular to the longitudinal axis is eccentrically coupled to the cam end of the second end of the shaft, and an operating rod extending radially outward from the cam seat, and the cam seat has a a circumferential surface of the wheel disposed around the horizontal axis; a shackle slidably coupled to the second end of the shaft along the shaft and located between the first fixed seat and the handle, including a reversely disposed abutting surface facing the first fixing seat, and at least one receiving surface spaced apart from and corresponding to the circumferential surface of the handle; and at least a rolling member is slidably sandwiched between the first surface Between the two fixing seats and the cam seat of the handle, and each of which includes a rolling surface respectively abutting the receiving surface and the circumferential surface of the wheel, when the operating lever of the handle is rotated by the plate, the driving of the cam seat is The horizontal axis rotates to push the rolling member such that the rolling surface thereof rolls with respect to the circumferential surface of the wheel and the receiving surface, thereby pushing the position of the second fixing seat relative to the first fixing seat and the releasing position. Tightening 2. According to the quick release described in the scope of claim 1, the second end of the rod is a bifurcated U-block type, including a base body connected to the part and the second The base body extends along the longitudinal axis of the parallel body 20J, and the base body cooperates with the two arm arms to define a limiting space, and each arm has a pivotal penetrating along the horizontal axis. a hole, the cam seat of the handle is pivotally connected between the two arms, and has a positioning hole aligned with the two pivot holes, the handle further includes a pivot hole disposed between the two pivot holes and the positioning hole Arbors. 3. The quick release according to claim 2, wherein the second fixing base comprises a corresponding engaging piece that abuts the rolling piece, and a positioning block for positioning the engaging block. a ring block having an inner circumferential surface defining a guiding hole around the longitudinal axis, an outer circumferential surface spaced apart from the inner circumferential surface, the abutting surface connected between the inner and outer circumferential surfaces, and a a ring end surface opposite to the abutting surface, and two positions respectively aligning the limiting space of the shaft are formed at the notch of the ring end surface, and the two notches are respectively from the ring end surface toward the abutting surface a direction extending through a predetermined length, and extending through the inner and outer peripheral surfaces, the engaging block has a body that is received in the limiting space of the shaft and extends outwardly from opposite sides of the body portion, and a latching joint protruding from the limit 2, and the two latching portions are respectively engaged with the two recesses of the ring block, the receiving surface is formed on the body portion, and is formed with the rolling member The inner surface of the rolling surface is complementary to the shape of the inner groove surface. 4. The quick release according to claim 3, wherein the rolling member is a shaft to a roller of the horizontal axis, and the rolling surface is of a cylindrical surface type. 5. The quick release according to claim 4, further comprising a casing attached to the outer peripheral surface of the ring: the casing includes an inner casing surface defining a valley space around the longitudinal axis An outer casing surface 21 1325840 spaced apart from the inner casing surface, an outer end surface respectively connected between the inner and outer casing faces, an inner end surface 'and two are disposed at intervals along the longitudinal direction of the operating rod of the handle a limiting recess of the outer end surface, the second limiting recess extends from the outer end surface toward the inner end surface and extends through the inner and outer surface, and is used for respectively stopping the operating lever of the hand. 6. The quick release according to claim 3, wherein the rolling member has a ball and the rolling surface is of a spherical type. The quick release according to claim 6 , further comprising a casing attached to the outer peripheral surface of the ring block, the casing comprising an accommodating space surrounding the longitudinal axis An inner casing surface, an outer casing surface spaced apart from the inner casing surface, an outer end surface, an inner end surface respectively connected between the inner and outer casing faces, and two spaced apart along a length of the operating rod of the handle The limiting recess is disposed on the outer end surface, and the two limiting recess extends from the outer end surface toward the inner end surface and extends through the inner and outer surface, and is used for respectively stopping the operating lever of the handle. 8. The quick release according to item i of the patent application scope, wherein the shaft && ° is in the form of a dry body, and the quick release comprises two separate clampings; a rolling member between the cam seat and the second fixing seat, wherein the circumferential surface of the cam seat of the handle is a first wheel surface and a second wheel surface which are spaced apart around the horizontal axis And the second fixing base comprises two receiving surfaces respectively corresponding to the first and second wheel surface portions, wherein the rolling surfaces of the rolling elements abut the first wheel surface and the receiving surface respectively Between the second round face and the receiving surface. 9. The quick release according to the scope of the patent application 帛8, wherein the second solid 22 1325840 seating includes a corresponding upper ply body and a lower casing, which are defined by the combination of a map from a guide around the second end of the shaft = respectively spaced from the first and second wheel faces of the cam:: (four): the abutment is formed in the lower sleeve The housing, and the two bearing surfaces are spaced apart from each other and formed opposite to the abutting surface, the two slots are formed by the two receiving surfaces and the two corresponding two receiving surfaces. The limiting surface of the sleeve is defined and formed, and the two limiting surfaces are oriented Extending the upper portion of the upper casing to define two through holes respectively communicating with the two slots, and when the two rolling members are respectively received in the two slots, a part of the rolling surface passes through The through holes are convexly exposed to abut against the first and second wheel faces of the cam seat, respectively. 10. The quick release according to claim 9, wherein the two rolling elements are balls and the rolling surface is a spherical type. The quick release of the first aspect of the invention, wherein the cam seat of the handle comprises a first sidewall, a second sidewall, and a connection connecting the first and second sidewalls The first wheel surface and the second wheel surface are respectively formed on the first and second side walls, and the two side walls cooperate with the connecting wall to define a cavity for accommodating the shaft, and The first and second side walls further have a first positioning hole and a second positioning hole extending along the horizontal axis, and the handle further includes a first and second positioning holes disposed through the cam holder. a connecting block, the pivoting block has a threaded hole formed through the longitudinal axis, and a threaded section for threading the screw hole is formed at the second end of the shaft for making the shaft Bind to the pivot block 0 23