DE102017103544B4 - QUICK RELEASE STRUCTURE - Google Patents

Abstract

A quick release structure comprising: (i) a shaft (20), said shaft (20) being formed as a hollow cylindrical rod with an internal through hole (21); the through hole (21) has a round magnetic member (22); a thread (201) is formed on the outside of a front end of the shaft (20); an external thread (202) is formed on the outside of a rear end of the shaft (20); (ii) a round shaft head (23), the round shaft head (23) having an inner screw hole (231), at a front end of the round head (23) a slot (232) is formed which is connected to the inner screw hole (231) and extends through two sides of the round head (23); the round manhole head (23) has a pair of side holes (233) on two sides of the slot (232) connected to the slot (232); a circumferential outer edge of a rear end of the round shaft head (23) has a circumferential outer groove (234); (iii) a stop ring (24) which is disk-shaped and has a central perforation (241); an outer peripheral edge of an outer end of the perforation (241) has a circumferential inner flange (242) and an inner end surface of the perforation (241) with teeth (243), the circumferential inner flange (242) of the stop ring (24) having the circumferential outer groove ( 234) of the round shaft head (23) is in engagement, so that the stop ring (24) is rotatably attached to the round shaft head (23); the thread (201) of the shaft (20) is screwed into the inner screw hole (231) of the round shaft head (23) so that the shaft (20) is inserted through the perforation (241) and attached to the round shaft head (23); (iv) a drive lever (25), this drive lever (25) being formed from metal in the form of a flat and plate-shaped handle; the drive lever (25) is formed with a lever head (251) and a lever body (252); the lever body (252) of the drive lever (25) is inserted through the slot (232) and through the inner screw hole (231) of the round shaft head (23) into the through hole (21) so that the lever head (251) is inserted into the slot ( 232) is inserted, wherein the drive lever (25) can be hidden in the quick release structure; and a pair of guide grooves (253) are formed on two sides of the drive lever (25) and extend longitudinally along the lever body (252); a distal end of the lever body (252) is attracted to the magnetic member (22); and (v) two engaging members (26), these two engaging members being screwed into the side holes (233) so that these engaging members (26) abut against the guide grooves (253); the drive lever (25) being movable within the range of length between the front and rear ends of the guide grooves (253); the rear ends of the guide grooves (253) are retained by the engaging members (26) so that the drive lever (25) cannot disengage from the round shaft head (23), the engaging members (26) being able to function as a pivot around the drive lever (25) to rotate, wherein the drive lever (25) for the round shaft head (23) forms a power arm and the shaft (20) is turned to the left and right in order to bring the shaft (20) to rotate.

Description

TECHNICAL ENVIRONMENT

The present invention relates to a quick release structure for concealing a drive lever, and more particularly to a quick release structure for a bicycle to provide a drive lever which can be hidden in a shaft when not in use.

BACKGROUND OF THE INVENTION

The document DE 20 2015 005 799 U1 discloses a quick release structure of the kind defined in the preceding paragraph.

The document DE 10 2014 112 084 A1 discloses a quick release structure comprising an axle unit and a tensioning device separable therefrom, the tensioning device comprising an operating lever and a tensioning component connected thereto, and the axle unit being lockable and unlockable by the tensioning device. The operating lever can be preloaded in the direction of the clamping component via a magnetic pretensioning device.

1. 1. Wenn der Antriebshebel 16 verriegelt ist, muss der zu verriegelnden und zu positionierenden Gabel 1 ausgewichen werden. Wenn daher die Welle 10 zum Verriegeln der Radachse 2 angezogen wird, muss diese dem Winkel der Gabel 1 angepasst werden. Der Winkel des Antriebshebels 16 muss daher durch weiteres Anziehen oder Lockern verstellt werden, was hinderlich und unpraktisch ist.
2. 2. Ungeachtet des Winkels, in die der Antriebshebel 16 verriegelt ist, ist dieser freigelegt. Der Antriebshebel 16 kann mitunter versehentlich berührt werden, was zu einer Lockerung der Welle 10 führt. Dies stellt für die Betätigung ein Sicherheitsrisiko dar.

The 1 and 2 show that a quick release structure for a bicycle has a shaft 10 includes that on two forks 1 and on a wheel axle 2 a bicycle is attached. An end to the wave 10 has an external thread 11 on to with one of the two forks 1 to be engaged. The other end of the wave 10 has a screw hole 12 and a locking bar 13 on. The locking bar 13 is with a connection head 131 formed and attached to a mounting block 14th and a positioning seat 15th attached. An inner end surface of the positioning seat 15th has a circumferential toothing 151 on. An outer end face of the other fork 1 has a circumferential toothed side 3 with which the circumferential toothing 151 is engaged. The connection head 131 the locking rod 13 is eccentric and articulated on a drive lever 16 attached. The drive lever 16 is used to operate the locking rod 13 and the wave 10 pulled up or down to lock or unlock it. This structure described above has the following disadvantages:

1. 1. When the drive lever 16 is locked, the fork to be locked and positioned must be 1 be evaded. So if the wave 10 to lock the wheel axle 2 is tightened, it must match the angle of the fork 1 be adjusted. The angle of the drive lever 16 must therefore be adjusted by further tightening or loosening, which is a hindrance and impractical.
2. 2. Regardless of the angle at which the drive lever 16 is locked, it is exposed. The drive lever 16 can be accidentally touched, causing the shaft to loosen 10 leads. This represents a safety risk for operation.

The inventor of the present invention has therefore devoted himself to solving these problems from his many years of practical experience.

GENERAL DESCRIPTION OF THE INVENTION

The main object of the present invention is to solve the disadvantages described above and to provide a quick release structure for concealing a drive lever.

The object of the present invention is achieved by a quick release structure according to claim 1.

In particular, a drive lever is inserted into a shaft through a slot in a round shaft head. Two engagement members on two sides of the slot are in engagement with the guide grooves of the drive lever, so that the drive lever does not inadvertently disengage and is attracted to a magnetic member which is arranged in the shaft. In use, the drive lever is pulled outward to disengage from the magnetic member that is to be removed from the shaft. The drive lever is rotated with the engaging members as trunnions to drive the shaft to rotate. The drive lever can be stored and hidden without exposing it in order to avoid unintentional contact with the drive lever and thus improve safety.

Figure list

• 1 Figure 3 shows an exploded view of a prior art quick release structure;
• 2 Figure 3 shows a cross-sectional view of the prior art quick release structure;
• 3 shows an exploded view according to an embodiment of the present invention,
• 4th Fig. 13 shows a perspective view according to the embodiment of the present invention;
• 5 Fig. 13 shows a cross-sectional side view according to the embodiment of the present invention;
• 6th shows a schematic view according to the embodiment of the present invention, here the drive lever is shown in use;
• 7th shows a schematic view according to the embodiment of the present invention, wherein here the drive lever is in the state of storage;
• 8th shows a schematic view according to the embodiment of the present invention, wherein the drive lever is hidden here; and
• 9 Figure 13 shows a cross-sectional view of the engaging members according to another embodiment of the present invention.

WAYS TO IMPLEMENT THE PREFERRED EMBODIMENTS

The exemplary embodiments of the present invention are described below by way of example only with reference to the accompanying drawings.

3 to 6th Figure 16 shows a quick release structure for concealing a drive lever according to an embodiment of the present invention that includes a shaft 20th , a round shaft head 23 , a stop ring 24 , a drive lever 25th and two engaging members 26th includes.

The wave 20th is as a hollow and cylindrical rod with an internal through hole 21st educated. The through hole 21st has a section at a front end 211 with a large diameter and a section at a rear end 212 small diameter on with a step between the section 211 with large diameter and the section 212 with a small diameter a border edge 213 forms. A round magnetic link 22nd is provided and on the borderline 213 attached. The magnetic link 22nd has a diameter greater than that of the section 212 with a small diameter. On the outside of a front end of the shaft 20th is a thread 201 formed while on the outside of a rear end of the shaft 20th an external thread 202 is formed. The round shaft head 23 has an internal screw hole 231 on. A front end of the round manhole head 23 has a slot 232 on the one with the inner screw hole 231 is connected and runs through two sides of the round shaft head 23 extends. The round shaft head 23 has a pair of side holes 233 on either side of the slot 232 on that with the slot 232 are connected. Every side hole is inside 233 formed with threads. The circumferential outer edge of the rear end of the round shaft head 23 has a circumferential outer groove 234 on. The stop ring 24 is disc-shaped and with a central hole 241 educated. A circumferential outer edge of an outer end of the perforation 241 is with a circumferential inner flange 242 educated. An inner end surface of the perforation 214 is with teeth 243 educated. The surrounding inner flange 242 of the stop ring 24 is with the circumferential outer groove 234 of the round shaft head 23 engaged to the stop ring 24 rotatable on the round shaft head 23 to fix. The thread 201 the wave 20th is so in the inner screw hole 231 of the round shaft head 23 screwed that shaft 20th through the perforation 241 introduced and at the round shaft head 23 is attached. The drive lever 25th is formed in the form of a flat and plate-shaped metal handle, the thickness of which is less than or equal to the width of the slot 232 is. The drive lever 25th has a lever head 251 and a lever body 252 on. The lever head 251 has a side length equal to or greater than the side length of the slot 232 is. On two sides of the drive lever 25th is a pair of guide grooves 253 formed, which extends lengthways on the lever body 252 extend. Each of the guide grooves 253 is at a front end with a first positioning recess 254 and at a rear end with a second positioning recess 255 educated. The lever body 252 of the drive lever 25th is through the slot 232 and the inner screw hole 231 in the round shaft head 23 in the section 211 with large diameter of the through hole 21st introduced to the lever head 251 in the slot 232 introduce a distal end of the lever body 252 from the magnetic link 22nd is tightened for positioning on site. As both engaging members 26th countersunk screws are used. One end of each engaging member 26th has a receiving opening 261 to accommodate a spring 262 and a steel ball 263 in that order. A hole in the receiving opening 261 is by riveting and pressing to fit with the steel ball 263 formed with a concave. The steel ball 263 is with the pen 262 preloaded while part of the steel ball 263 from the receiving opening 261 looks. The engaging links 26th be with the steel balls 263 in the side holes 233 screwed in so that the steel ball 263 the engaging links 26th to the guide grooves 253 and the drive lever 25th within the range of length between the front and rear ends of the guide groove 253 can be moved. The steel ball 263 can in the first positioning recess 254 or in the second positioning recess 255 be pressed. The rear ends of the guide grooves 253 are with the engaging members 26th held to a falling off of the drive lever 25th to prevent. The drive lever 25th uses the steel balls 263 the engaging links 26th as a fulcrum to the drive lever 25th to pull and turn at an angle, using the drive lever 25th for the round shaft head 23 a Low force is formed while the wave 20th rotated left and right to the shaft 20th to rotate. With the arrangement described above, the drive lever 25th to turn the shaft 20th Pulled out when in use and concealed for storage when not in use.

The assembly details of the present invention are described below. The 3 , 4th , 5 and 6th show that in the present invention the lever body 252 of the drive lever 25th has a width less than the diameter of the through hole 21st the wave 20th is to the lever body 252 to hide while the slot 232 to accommodate the lever head 251 is adapted to the drive lever 25th to hide. To assemble the present invention, the thread 201 the wave 20th into the inner screw hole 231 of the round shaft head 23 screwed in. The round shaft head can also be used 23 by adhering securely to the shaft 20th attached. When screwing in the engaging members 26th in the side holes 233 become the steel balls 263 into the guide grooves 253 on both sides of the drive lever 25th pressed to the drive lever 25th to stabilize without shaking while pulling or pushing and thus avoiding noises. The length of the guide grooves 253 extends from the lever head 251 to the distal end of the lever body 252 to move the drive lever 25th to slide back and forth and the steel balls 263 in the first positioning recesses 254 or in the second positioning depressions 255 the guide grooves 253 to position. When pushing in the drive lever 25th and positioning the steel balls 263 in the first positioning recesses 254 the guide grooves 253 becomes the drive lever 25th with the magnetic link 22nd tightened, the first positioning depressions 254 the safe positioning of the drive lever 25th facilitate. When pulling out the drive lever 25th and positioning the steel balls 263 in the second positioning recesses 255 the guide grooves 253 can the lever body 252 completely from the through hole 21st be removed without leaving the through hole 21st to be prevented. The steel balls 263 the engaging links 26th work as a fulcrum to get in the slot 232 to be rotated. The drive lever 25th consists of a ferromagnetic metallic material such as iron (Fe), cobalt (Co), nickel (Ni) and the like. The magnetic link 22nd is formed as a round magnet. The magnetic link 22nd therefore has to tighten the drive lever 25th using a magnetic force so that the drive lever 25th cannot protrude unintentionally. On both sides of the lever head 251 is a supernatant 256 formed to ensure that the round shaft head 23 from both sides of the lever head 251 protrude further and the user can therefore easily pull out the drive lever with his / her fingers.

6th to 8th show that for screwing in or loosening the external thread 202 the wave 20th the drive lever 25th by applying a force greater than that of the magnetic handle 22nd and the first positioning depressions 254 is, can be pulled out to the steel balls 263 the engaging links 26th in the second positioning recesses 255 to position the steel balls 263 as a fulcrum for turning the drive lever 22nd in the direction perpendicular to the shaft 22nd (please refer 6th ) serve. The drive lever 25th is rotated left and right to the shaft 20th to rotate (the shaft 20th and the round shaft head 23 were stuck together) to the external thread 202 in the fork 1 of the bike to screw in or out of this fork 1 unscrew. For turning the shaft 20th no tools are required. After using the steel balls 263 again used as a pivot to the drive lever 25th in the direction parallel to the shaft 20th to rotate (see 7th ). The drive lever 25th becomes in the direction of the through hole 21st postponed. The lever body 252 of the drive lever 25th is in the section 211 with large diameter of the through hole 21st introduced. The lever head 251 gets in the slot 232 recorded. The distal end of the lever body 252 hits the magnetic link 22nd on. The steel balls 263 are again in the first positioning recesses 254 positioned (see 8th ). The drive lever 25th becomes of the magnetic link 22nd tightened again and cannot inadvertently protrude around the drive lever 25th in the wave 20th and in the round shaft head 23 to hide. The drive lever 25th must therefore because of the fork 1 taking into account the difficulty of the screw angle of the shaft 20th not dodging the drive lever 25th cannot protrude without the risk of unintentional displacement, causing the wheel axle 2 can be relaxed.

The present invention can also be used as in FIG 9 shown to be implemented. The side holes 235 on either side of the slot 232 are formed as smooth holes, the engaging members 27 are formed as cylindrical rods each with a smooth outer surface. The side holes 235 each have a diameter that is smaller than the diameter of the engagement members 27 is. The engaging links 27 are inserted into the side holes with a processing machine 235 inserted so that the engaging members 27 can not be removed and the steel balls 263 to the guide groove 253 issue. The engaging links 27 can no longer be removed from the outside in order to avoid dismantling.

Despite the detailed description of specific exemplary embodiments, it is understood that various modifications and improvements can be made without departing from the spirit and scope of the present invention. The present invention is therefore intended to be limited only by the appended claims.

List of reference symbols

• [in the state of the art]

  1

  fork

  2

  Wheel axle

  3

  Circumferential toothed side

  10

  wave

  11

  External thread

  12

  Screw hole

  13

  Locking bar

  131

  Connection head

  14th

  Mounting block

  15th

  Positioning seat

  151

  Circumferential toothing

  16

  Drive lever

• [in the invention]

  20th

  wave

  201

  thread

  202

  External thread

  21st

  Through hole

  211

  Large diameter section

  212

  Small diameter section

  213

  Boundary edge

  22nd

  Magnetic link

  23

  Round shaft head

  231

  Inner screw hole

  232

  slot

  233

  Side hole

  234

  Circumferential outer groove

  235

  Side hole

  24

  Stop ring

  241

  Perforation

  242

  Circumferential inner flange

  243

  teeth

  25th

  Drive lever

  251

  Lever head

  252

  Lever body

  253

  Guide groove

  254

  First positioning recess

  255

  Second positioning recess

  256

  Got over

  26th

  Engaging member

  261

  Receiving opening

  262

  feather

  263

  Steel ball

  27

  Engaging member

Claims (7)

A quick release structure comprising: (i) a shaft (20), said shaft (20) being formed as a hollow cylindrical rod with an internal through hole (21); the through hole (21) has a round magnetic member (22); a thread (201) is formed on the outside of a front end of the shaft (20); an external thread (202) is formed on the outside of a rear end of the shaft (20); (ii) a round shaft head (23), the round shaft head (23) having an inner screw hole (231), a slot (232) being formed at a front end of the round shaft head (23) which is connected to the inner screw hole ( 231) is connected and extends through two sides of the round shaft head (23); the round manhole head (23) has a pair of side holes (233) on two sides of the slot (232) connected to the slot (232); a circumferential outer edge of a rear end of the round shaft head (23) has a circumferential outer groove (234); (iii) a stop ring (24) which is disc-shaped and has a central perforation (241); an outer peripheral edge of an outer end of the perforation (241) has a circumferential inner flange (242) and an inner end surface of the perforation (241) with teeth (243), wherein the circumferential inner flange (242) of the stop ring (24) with the circumferential outer groove ( 234) of the round shaft head (23) is in engagement, so that the stop ring (24) is rotatably attached to the round shaft head (23); the thread (201) of the shaft (20) is screwed into the inner screw hole (231) of the round shaft head (23) so that the shaft (20) is inserted through the perforation (241) and attached to the round shaft head (23); (iv) a drive lever (25), this drive lever (25) being formed in the form of a flat and plate-shaped handle made of metal; the drive lever (25) with a lever head (251) and a lever body (252) is formed; the lever body (252) of the drive lever (25) is inserted through the slot (232) and through the inner screw hole (231) of the round shaft head (23) into the through hole (21) so that the lever head (251) is inserted into the slot ( 232) is inserted, wherein the drive lever (25) can be hidden in the quick release structure; and a pair of guide grooves (253) are formed on two sides of the drive lever (25) and extend longitudinally along the lever body (252); a distal end of the lever body (252) is attracted to the magnetic member (22); and (v) two engaging members (26), these two engaging members being screwed into the side holes (233) so that these engaging members (26) abut the guide grooves (253); the drive lever (25) being movable within the range of length between the front and rear ends of the guide grooves (253); the rear ends of the guide grooves (253) are retained by the engaging members (26) so that the drive lever (25) cannot disengage from the round shaft head (23), the engaging members (26) being able to function as a pivot around the drive lever (25) to rotate, wherein the drive lever (25) for the round shaft head (23) forms a power arm and the shaft (20) is rotated to the left and right to bring the shaft (20) to rotate. The quick release structure according to Claim 1 wherein the through hole (21) has a large diameter portion (211) at a front end and a small diameter portion (212) at a rear end; a boundary edge (213) is formed with a step between the large diameter portion (211) and the small diameter portion (212); the magnetic member (22) is attached to the boundary edge (213); the lever body (252) of the drive lever (25) is inserted into the large diameter portion (211) and attracted with the magnetic member (22). The quick release structure according to Claim 1 wherein each of the guide grooves (253) is formed at a front end with a first positioning recess (254) and at the rear end with a second positioning recess (255); one end of each of the engaging members (26) has a receiving opening (261) for receiving a spring (262) and a steel ball (263) in that order; a hole of the receiving opening (261) is formed by riveting and pressing for fitting the steel ball (263) with a concave; the steel ball (263) is pretensioned with the spring (262) and part of the steel ball (263) protrudes from the receiving opening (261) in such a way that the steel ball (263) rests on a corresponding guide groove (253) and is in the first positioning recess ( 254) or in the second positioning recess (255). The quick release structure according to Claim 3 , one turn being formed inside each of the side holes (233); Countersunk screws are used as engagement members (26) and the engagement members (26) are screwed into the side holes (233). The quick release structure according to Claim 3 wherein the side holes (235) are formed as smooth holes; the engagement members (27) are formed as cylindrical rods and each have a smooth outer surface; the side holes (235) each have a diameter smaller than that of the engaging members (27), and the engaging members (27) are inserted into the side holes (235). The quick release structure according to Claim 1 wherein the drive lever (25) has a thickness that is less than or equal to a width of the slot (232) and the lever head (251) has a side length that is greater than or equal to that of the slot (232). The quick release structure according to Claim 6 wherein one side of the lever head (251) has a protrusion (256).

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