JP2000008674A - Handle lock for bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the attaching direction of a lock mechanism and the operation direction of a key, not making hindrance in using a bicycle and safely use it in a handle lock capable of locking a handle at a turn position and an arbitrary angular position. SOLUTION: A lock ring 5 disposing a notch part 6 is fixed on a peripheral face in response to the turn position and the arbitrary angular position of a handle in a handle post inserted and rotatably pivoted in a fitting cylinder 1. A lock case 7 is vertically provided along the outside of the fitting cylinder 1, a cylinder lock mechanism 11 facing a key hole 12 on the upper end is fitted to the inside of the lock case 7, a rotary lever 15 is fitted to an angular shaft provided with the lower end of the lock mechanism 11, a pin 17 provided with the lower end of the lever 15 is engaged with a locking rod 18 laterally slidably provided on the bottom part of the lock case 7, and a lateral projection by attaching of the lock mechanism 11 is made the minimum and the operation direction of a key 12 is vertically changed by engaging the lock lever 18 with the notch part of the lock ring 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turning method for turning a handle post, which is rotatably inserted into a fitting cylinder provided at a front portion of a bicycle body, such that the handle is parallel to the vehicle body when parking a bicycle. The present invention relates to a bicycle handle lock which can be locked at a position or can be locked at an arbitrary angular position, wherein the locking mechanism attached to the bicycle is used safely.

[0002]

2. Description of the Related Art In order to reduce the space for a bicycle when placed in a bicycle parking lot, a steering wheel is turned in parallel with the vehicle body, and locking is possible at the turning position. And actual Kaihei 4-818
In addition to Japanese Patent Application Laid-open No. 94-94, Japanese Patent Application Laid-Open
No. 249 publication.

[0003]

In the above conventional handle lock, the mounting direction of the lock mechanism and the operating direction of the key are laterally orthogonal to the handle post, so that they protrude to the side of the vehicle body. It is easy to catch on the lock body while using the bicycle, bend against the key locked in the keyhole, switch to the lock accidentally due to contact with the key or vibration of the bicycle, etc. I was worried.

[0004] In view of the above, an object of the present invention is to make it possible to use a handle lock provided on a bicycle more easily and safely.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a thrust bearing which is rotatably mounted on a thrust bearing by inserting a handle post having a screw cylinder shaft integrally mounted on an outer periphery thereof into a fitting cylinder provided at a front portion of a vehicle body. Then, the screw cylinder shaft is screwed with a lock ring provided with a notch for setting the turning position of the handle on the outer circumference and fixed so as to rotate integrally with the handle post.
A lock case in which a fitting portion is formed in a vertical direction is integrally extended, and a cylinder lock mechanism having a key hole facing the upper end and a restoring spring are fitted into the fitting portion, and a lower end of the cylinder lock mechanism is provided. A rotation lever provided so as to be fitted to the provided square shaft and integrally rotated with each other is fitted therein, and a guide projection protruding from one side of the rotation lever is fitted into a guide groove provided on the inner surface of the lock case. In addition, the cylinder lock mechanism is provided so as to move up and down and rotate by being driven by the key pressing operation and the rotation operation, and is provided at the bottom of the rotation lever at the bottom of the lock case while being urged by the return spring. The present invention provides a handlebar lock for a bicycle, comprising a lock rod which moves laterally toward a notch provided on the outer periphery of the lock ring following a pin.

[0006] The handle lock of the present invention constructed as described above comprises a lock case, a cylinder lock mechanism and a key hole fitted in the lock case, and a key which is inserted into and locked in the key hole during use. All are provided vertically along the fitting tube and handle post provided at the front of the vehicle body.

[0007] Therefore, according to the lock of the present invention, lateral projection due to the mounting of the lock mechanism is minimized, and it is possible to avoid catching or contacting with a conventional product, and
Inadvertent operation of the lock mechanism due to breakage or vibration of the key is also prevented, thereby promoting safe use of the bicycle. The present invention has solved the above-mentioned problems as described above.

In the present invention, a guide groove for guiding the operation of the cylinder locking mechanism is formed by a vertical groove for vertically guiding the guide projection by a key-pressing operation, and a first groove extending laterally from the upper end of the vertical groove. When a horizontal groove and a second horizontal groove which is continuous from the lower end of the vertical groove to the first horizontal groove in a direction opposite to the first horizontal groove are provided, the unlocked state and the locked state can be more stably held, and the vibration resistance is high. You can get tablets,
The use of the bicycle is made safer by reducing the risk of accidental locking.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a fitting cylinder integrally formed on a front portion of a bicycle body, and 2 denotes a handle post inserted through the fitting cylinder 1 with a screw cylinder shaft 3 integrally mounted on the outer periphery. Is
One of the thrust bearings provided at both ends of the fitting cylinder 1 and rotatably bearing the handle post 2.

Reference numeral 5 denotes a notch 6 in which the turning position of the handle is set at a plurality of positions on the peripheral edge. The cut 6 is fitted to the handle post 2, the lower end is supported by the thrust bearing 4, and is screwed to the screw cylinder shaft 3. A lock ring 7 is mounted so as to rotate integrally with the handle post 2, and a lock case 7 extends outside the fitting tube 1. The lock case 7 has a cylindrical base 7 ′ fitted to the outer periphery of the thrust bearing 4, is supported by the flange 4 ′, and is fixed so as to rotate integrally with the fitting cylinder 1.

The lock case 7 has a bottomed and cylindrical fitting portion 8 having an axis parallel to the handle post 2 outside the fitting tube 1 and having an open upper end to fit the cylinder lock mechanism.
And a slide guide hole 10 communicating in a T-shape with a circular hole 9 provided at the bottom of the fitting portion 8 and having an inner end opened toward the side surface of the lock ring 5.

The cylinder lock mechanism 11 fitted in the lock case 7 is a conventionally known cylinder lock mechanism.
Tumbler part 11 ′ with tumbler part 1
1 'is fitted with an outer cylinder 11 "which rotates integrally with each other. An operation guide plate 14 and a rotation lever 15 are fitted on a square shaft 13 hanging down at the lower end, and the lower part of the outer cylinder 11" The restoring spring 16 is interposed between the fitting portion 8 of the case 7 and the bottom of the fitting portion 8 and is constantly urged upward.

A pin 17 hangs down from one side of the lower surface of the rotary lever 15 and rotates in the circular hole 9 with the rotation of the square shaft 13. A pin 18 fits in the slide guide hole 10 and A lock rod 19 which advances and retreats toward the notch 6 of the lock ring 5 following the rotation, 19 is a connecting member that causes the lock rod 18 to follow the pin 17, and 20 is a lock rod 18 via the connecting member 19.
Is a return spring that constantly urges in the locking direction.

The cylinder lock mechanism 11 rotates the key 12 shown by the imaginary line in FIG. 1 to the right by approximately 90 °, pushes it into the position of the solid line in the diagram, and further rotates the key 12 to the right by 90 ° to obtain the structure shown in FIG. As shown, a locked state is formed in which the tip of the lock rod 18 is fitted into the cutout 6 of the lock ring 5. In addition,
At this time, the key 12 can be taken out of the keyhole and carried. The unlocking is performed by the reverse rotation operation of the key 12.

The operation of the cylinder lock mechanism 11 accompanying the locking operation and the unlocking operation of the key 12 is performed by a guide projection 14 ′ protruding to one side of the operation guide plate 14 fitted on the square shaft 13 and the inner surface of the lock case 7. Is guided by engagement with the guide groove 21 formed in the groove.

In this embodiment, the guide groove 21 is composed of a vertical groove 21b extending along the right side of the cylinder lock mechanism 11 in the figure and a first horizontal groove 21 extending from the upper end of the vertical groove 21b to the left side in the figure.
a and a second horizontal groove 21c (extending in the vertical direction opposite to the first horizontal groove 21a with the vertical groove 21b at the center) continuing leftward from the lower end of the vertical groove 21b on the near side in the drawing.

When the key 12 is rotated counterclockwise by approximately 90 ° from the locked state shown in FIG. 1, the pin 17 first escapes from the notch 6 of the lock ring 5 against the bias of the return spring 2.
This handle lock lock is unlocked.

Next, when the pressing of the key 12 is released, the cylinder lock mechanism 11 is urged by the restoring spring 16 which has been compressed by the outer cylindrical portion 11 "at the time of locking, and rises to the position before locking, and the guide projection 14 'is raised. Although the unlocked state is maintained by reaching the upper end of the vertical groove 21b, as shown in FIG. 3, when the key 12 is further rotated counterclockwise by 90 °, the guide projection 14 'is returned to the restoring spring 1
Since the first lateral groove 20a is locked at the end of the first lateral groove 20a in a state where it is biased to 6, it is possible to maintain a strong unlocked state against vibration of the bicycle and the like.

In the figure, 22 is a case cover for covering the lock case 7, 23 is a turning friction plate provided on the upper surface of the lock ring 5, 24 is a turning friction plate attached to the handle post 2, and 25 is a front basket holder. 26 is an intermediate nut and 27 is a cap nut.

In the embodiment of the present invention, the guide groove 21 for guiding the operation of the cylinder lock mechanism 11 accompanying the unlocking operation and the locking operation is provided with the second vertical groove 21b and the second vertical groove 21b as long as the locked state is maintained. It goes without saying that it is only necessary to provide the lateral groove 21c.

[0021]

As described above, the handle lock of the present invention comprises a lock case, a cylinder lock mechanism and a key hole fitted in the lock case, and a key inserted and locked in the key hole during use. All are vertically provided along the fitting tube and handle post provided at the front of the vehicle body, so that accidental catching or contact during use of the bicycle can be avoided. Also, careless operation of the lock mechanism due to breakage or vibration of the key is unlikely to occur, and the bicycle can be used safely, and it is easier to use than conventional locks of this kind, and is convenient for bicycle users.

[Brief description of the drawings]

FIG. 1 is a partially cutaway elevational view of a locked state of an embodiment.

FIG. 2 is a partially cutaway elevational view showing an unlocking operation.

FIG. 3 is a partially cutaway elevational view showing an unlocked state.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Fitting cylinder 2 Handle post 3 Screw cylinder shaft 4 Thrust bearing 5 Lock ring 6 Notch 7 Lock case 7 'Base 8 Fitting portion 9 Circular hole 10 Slide guide hole 11 Cylinder lock mechanism 11' Tumbler portion 11 "Outer cylinder portion DESCRIPTION OF SYMBOLS 12 Key 13 Square axis 14 Operation guide plate 14 'Guide protrusion 15 Rotating lever 16 Restoring spring 17 Pin 18 Locking rod 19 Connecting member 20 Return spring 21 Guide groove 21a First horizontal groove 21b Vertical groove 21c Second horizontal groove 22 Case cover 23 Turning friction plate 24 Turning friction plate 25 Front cage holder 26 Intermediate nut 27 Cap nut

Claims (2)

[Claims] 1. A handle post having a screw cylinder shaft integrally mounted on an outer periphery thereof is inserted into a fitting cylinder provided at a front portion of a vehicle body, and is rotatably supported on a thrust bearing. A lock ring provided with a notch to set the turning position of the handle is screwed together and fixed so that it can rotate integrally with the handle post, and a lock case with a fitting part formed vertically is integrated with the outside of the fitting cylinder. The cylinder lock mechanism and the restoring spring with the key hole facing the upper end are fitted in the fitting portion,
A rotation lever provided so as to be fitted to a square shaft provided at the lower end of the cylinder lock mechanism and integrally rotated with each other is fitted therein, and a guide projection protruding to one side of the rotation lever is provided on an inner surface of the lock case. Is provided so as to move up and down and rotate by following the pushing operation and the rotating operation of the key, while being urged by the return spring at the bottom of the lock case. A handlebar lock for a bicycle, comprising a lock rod which is moved laterally toward a notch provided on the outer periphery of the lock ring following a pin provided at a lower portion of the rotary lever. The guide groove includes a vertical groove for vertically guiding the guide protrusion by a key pressing operation, a first horizontal groove extending horizontally from an upper end of the vertical groove, and a first horizontal groove extending from a lower end of the vertical groove. It consists of a horizontal groove and a second horizontal groove that continues horizontally in the opposite direction,
The guide projection is engaged with the first horizontal groove when the handle lock is unlocked, and the guide projection is guided from the vertical groove to the second horizontal groove when the key is locked. The bicycle handle lock according to claim 1.