JP2000016361A - Handlebar lock for bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fix a handlebar at a specified angular position without using a key in a handlebar lock capable of locking the handlebar at an arbitrary steering direction and at an arbitrary angular position. SOLUTION: A lock ring 5 provided with a notched part 6 arranged on a circumferential surface corresponding to the steering position of a handlebar, and locked by using a key, and a fixing ring 9 for parking to fix a handle post in an irrotational manner without using any key are fixed to a handle post 2, and a slide cam 30 provided with an operation knob 29 opposite to a side surface of a lock case 13 movable in a right-to-left direction controls the elevating/lowering of an operation lever 33 to be engaged with the fixing ring 9 for parking. The handlebar can be selectively locked by one handle lock, and the angle of the handlebar can be easily fixed without using any key.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to locking a handle post, which is rotatably inserted into a fitting tube provided at a front portion of a bicycle body, when the bicycle is parked, so that the handle is parallel to the vehicle body. For bicycle handle locks that can be locked in a turning position or locked at an arbitrary angle position, apart from a locking mechanism that fixes the handle in a predetermined direction, only rotation of the handle is temporarily performed by simple operation It is characterized by the fact that a turning device that can be fixed to the vehicle is provided.

[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]

The above-mentioned conventional handle lock is configured so that the locking operation and the unlocking operation of the locking mechanism are linked with the fixing operation and the opening operation at the turning position of the handle. However, there is a disadvantage that the structure of the lock mechanism to be attached to a limited narrow place around the handle post at the front of the bicycle becomes complicated, and it is inconvenient for locking and unlocking operations.

In view of the above, the problem to be solved by the present invention is to provide a simple, independent locking mechanism for the handle lock without significantly changing the mounting state of the handle lock attached to the bicycle. It is another object of the present invention to provide a handle lock device of this type which is more convenient and easy to use by providing a turning fixing mechanism which can temporarily fix only the rotation of the handle by operation.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a fitting post provided on a front portion of a vehicle body, in which a handle post having a screw cylinder shaft integrally mounted on an outer periphery thereof is inserted. A lock ring that is rotatably mounted on the thrust bearing and has a notch on the screw cylinder shaft to set the turning position of the handle, and a number of notches are also provided on the periphery corresponding to the turning position of the handle. The fixed ring for bicycle parking is fitted and fixed so as to rotate together with the handle post, respectively, and is engaged with the cutout portion of the lock ring in a lock case integrally extended outside the fitting cylinder. While providing a lock mechanism that includes a lock rod and locks the handle to the turning position in a non-rotatable position, an operation knob is brought out on one side of the lock case, and the operation knob is driven in the lock case, and the above-described operation is performed. The operating level that engages with the notch in the parking ring By providing over, there is provided a locking at turning position of the steering wheel, the bicycle handle lock tablets that can select the fixing of the handle at the turning position not locked.

The handle lock lock of the present invention configured as described above operates the lock mechanism for engaging the handle post to lock the handle at a turning angle or a predetermined angle, and operating the operation knob to operate the bicycle parking fixing ring. The locking of the handle angle without locking the key to engage the lever can be operated independently of each other,
Both can be used selectively. Further, a mechanism for engaging the bicycle parking fixing ring with the operating lever does not require a special place.

Therefore, according to the lock of the present invention, it is possible to provide an easy-to-use handle lock which can lock the handle using a key and fix the handle without the lock without complicating the mechanism so much. The present invention has solved the above-mentioned problems as described above.

In the present invention, various structures can be adopted as a mechanism for engaging and disengaging the bicycle parking fixing ring and the operating lever by operating the operation knob. For example, the operation knob is hinged to the lock case so as to be swingable, and the inner end of the operation knob and the operating lever are connected by a link motion, or the operation knob is rotatably supported by the lock case and the angular displacement is adjusted. It is also possible to use a suitable link or a disc cam or the like to work the system between the operating lever and the cutout of the bicycle parking fixing ring.

In the illustrated embodiment, a slide cam rotatably provided along the outer periphery of the bicycle parking fixing ring is connected to the inner end of the operation knob, and this slide cam is attached to the outside of the lock case. The operation lever is driven by the left and right movements of the operating knob, and the operation lever which is guided by a cam slope provided on the cam to move up and down is engaged with the notch portion of the bicycle parking fixing ring. Locking in the turning position;
It is possible to select between fixing the handle at the turning position where the key is not locked.

The lock mechanism to be mounted on the lock case includes a cylinder lock mechanism having a horizontal axis perpendicular to the handle post. The cylinder lock mechanism includes a lock rod that engages with the notch of the lock ring. The slide cam for operating the rotating ring for moving the bicycle and the locking ring for parking the bicycle is provided with the operation knob at a position adjacent to the cylinder locking mechanism, and the operating lever is biased at one end connected to the cam slope by a spring. So that it is raised to the position of engagement with the notch of the bicycle parking fixing ring, and at the other end of the cam slope, the operating lever is held at the non-engagement position against the urging spring. In addition to configuring, the operation knob
In the disengaged position of the operating lever, by being configured to be engaged with a concave portion provided on a side edge of the lock case,
Ease of use and stability of use of the handle lock can be further improved.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a handle lock according to the present invention, and FIG. 2 is a bottom view. FIG. 3 is a partially cutaway elevational view showing the mounting state. In the drawing, reference numeral 1 denotes a fitting cylinder integrally formed on the front portion of the bicycle body, 2 denotes a handle post inserted through the fitting cylinder 1 with a screw cylinder shaft 3 integrally attached to the outer periphery, and 4 denotes a fitting post. One of the thrust bearings provided at both ends of the fitting cylinder 1 and rotatably bearing the handle post 2.

5 is provided with a plurality of cutouts 6 at the periphery of which the front position of the handle is set and the turning positions of the handle on the left and right sides thereof as shown in FIG.
As shown in FIG. 3, a lock ring 8 having a lower end supported by a thrust bearing 4 and attached to a screw cylinder shaft 3 together with a key 7 and fixed so as to rotate integrally with each other. The plate 9 has a turning friction plate 10 in contact with the friction plate 8 formed on the back surface, and a number of notches 11 corresponding to the turning position of the handle are provided on the periphery thereof in a gear-shaped fixing ring for bicycle parking. Reference numeral 12 denotes an annular corrugated leaf spring that presses the fixed parking ring 9 against the lock ring 5 on the handle post 1.

Reference numeral 13 denotes a lock case extending outside the fitting tube 1. The lock case 13 has a cylindrical base 13 ′ fitted to the outer periphery of the thrust bearing 4 and supported by the flange 4 ′,
It is fixed so as to rotate integrally with the fitting cylinder 1. The lock case 13 has a bottomed, cylindrical fitting portion 1 that is opened laterally with the axis perpendicular to the handle post 2 outside the fitting cylinder 1 and that opens to the front side in the figure to fit the cylinder lock mechanism.
4 and a substantially semicircular hole 15 provided at the inner end of the fitting portion 14.
And a slide guide hole 16 communicating with the hole 15 in a T-shape and opening the left end in the figure toward the side surface of the lock ring 5.

In this embodiment, a well-known cylinder lock mechanism 17 is used as a lock mechanism fitted in the lock case 14. The cylinder lock mechanism 17 includes a tumbler portion 17 ′ in which a key 19 is inserted into a key hole 18 that opens to the front side, and an outer cylinder portion 1 that fits the tumbler portion 17 ′ and integrally rotates with each other.
7 ", an operation guide plate 21 and a circular rotary lever 22 are fitted to a square shaft 20 protruding from the inner end, and the inner end of the outer cylindrical portion 17" and the bottom of the fitting portion 14 of the lock case 13 are fitted. Is always urged toward the front side in the figure with a restoring spring 23 interposed.

Reference numeral 24 denotes a pin projecting from one side of the end face of the rotary lever 22, and rotates approximately 180 ° in the semicircular hole 15 with the rotation of the square shaft 20. Reference numeral 25 denotes a slide guide hole 1.
6, the lock ring 5 is driven by the rotation of the pin 24.
Is a connecting portion that causes the locking rod 25 to follow the pin 24, and 27 is an urging spring that constantly urges the locking rod 25 in the locking direction via the connecting portion 26. is there.

The cylinder lock mechanism 17 is shown in FIGS.
In the locked state shown in (a), the key 19 inserted into the keyhole 18 is rotated to the left, the lock rod 25 is retracted to disengage the notch 6 of the lock ring 5, and then the key 19 is released. Then, it is urged by the restoring spring 23, and FIG.
As shown in (2), the key 19 is retracted to the front side of the lock case 13, and then the key 19 is further rotated to the left to open the lock state. At this time, the key 19 is locked in the lock mechanism 17 and cannot be pulled out from the keyhole 18. Locking is performed by a reverse rotation operation of the key 19.

The operation of the cylinder lock mechanism 17 accompanying the unlocking operation and the locking operation of the key 19 is performed by a guide projection 21 ′ protruding to one side of the operation guide plate 21 fitted on the square shaft 20 and the inside of the lock case 13. Guided by engagement with a guide groove 28 formed on the side surface.

Next, a structure for fixing the rotation of the handle without using the key 19 by operating the bicycle parking fixing ring 9 will be described. As shown in the figure, the proximal end of the lock case 13 is located adjacent to the cylinder lock mechanism 17. When the operation knob 29 protruding to the side surface of the portion 13 ′ is moved to the left side in FIGS. 1 and 4, an arc-shaped slide cam 30 connected to the inner end of the knob 29 has a guide groove 31 provided on the inner surface of the case. Slide in the same direction along.

The slide cam 30 is shown in FIGS.
As shown in FIG. 2, a sloped cam 32 is provided on one side (the right side in the figure), an engaging portion 32 'is provided on the right end corresponding to the bottom of the cam, and the left side shown in the figure, which corresponds to a high position of the cam, is a non-engaging portion 32 ". When the slide cam 30 moves to the left following the operation of the operation knob 29, and the engaging portion 32 'at the right end reaches the position shown in FIG. ), The operating lever 33 restrained by the non-engaging portion 32 ″ is urged by the urging spring 34 and rises as shown in the drawing, and has the same height as the peripheral edge of the bicycle parking fixing ring 9. When the handle post 2 is engaged with the notch 11 as shown in FIG. 5, the handle post 2 is prevented from rotating through the parking ring 9 and the turning friction plates 8 and 9, and the handle is moved to the angular position at that time. Fixed to. In FIG. 6, the bicycle parking fixing ring 9 is shown in an expanded state along the periphery.

When the fixed ring 9 for parking the bicycle is released, the operating lever 33 is pushed down by the slope cam 32 in accordance with the operation of returning the operation knob 29 to the right from FIG. 6B to FIG. By returning to the non-engaging portion 32 ″.

The operating lever 33 is connected to the handle post 2.
It has two upper and lower engaging arms 33 ′, 33 ″ toward the side, the lower engaging arm 33 ″ is engaged with the slide cam 30, and the upper engaging arm 33 ′ is The lock case 13 is formed so as to be brought into contact with and separated from the notch portion 11 and together with the biasing spring 34.
Is fitted in a vertically movable guide groove 35 provided in the vertical direction.

The operation knob 29 is shown in FIGS.
As shown in FIG. 6, the slide cam 30 is connected with a lift spring 37 interposed between the slide cam 30 and the connection portion 36 of the slide cam 30 so as to leave a slight lifting margin. Returning to the engagement position, the push-up spring 37 pushes up the protrusion 38 provided at the lower end thereof into the recess 39 provided at the lower edge of the base end 13 ′ of the lock case 13, whereby the bicycle is parked. The non-engagement state with the fixing ring 9 is safely held. When the parking ring 9 is operated, it goes without saying that the operation can be performed by pushing down the operation knob 29 against the bias of the push-up spring 37.

In the drawing, reference numeral 40 denotes the base end 1 of the lock case 13.
Reference numeral 41 denotes a front basket holder, reference numeral 42 denotes an intermediate nut, and reference numeral 43 denotes a cap nut.

In implementing the present invention, the structure of the locking mechanism for locking the steering wheel at the turning angle or the predetermined angle, the operation knob for operating the bicycle parking fixing ring, the operating lever, and the like are limited to the illustrated embodiments as described above. It is needless to say that the design may be appropriately changed in accordance with the gist of the present invention.

[0025]

As described above, the handle lock according to the present invention is different from the lock mechanism for locking the handle and the handle post at the turning position, and the handle and the handle post are fixed at desired angular positions. With the fixing mechanism, it is easy to fix the handle when there is no need to use a key, and the limited structure around the handle post of the bicycle like the previous product without complicating the structure of attaching both keys A mechanism that only fixes the handle without using a key can be provided in a narrow place, and it is extremely easy to use, and is convenient for a bicycle user.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment.

FIG. 2 is a bottom view of the embodiment.

FIG. 3 is a partially cutaway elevational view showing a state of attachment to a handle post.

FIG. 4A is a partially cutaway plan view showing a locked state of an embodiment, and FIG. 4B is a partially cutaway plan view of an unlocked state.

FIG. 5 is a partially cutaway plan view showing an operating state of a bicycle parking fixing ring.

FIGS. 6A and 6B are explanatory diagrams of an operation knob and an operation state of a slide cam.

[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 Key 8 Turning friction plate 9 Bicycle fixing ring 10 Turning friction plate 11 Notch 12 Key 13 Lock case 13 'Base end 14 Fitting part 15 Hole 16 Slide guide groove 17 Cylinder lock mechanism 17 'Tumbler part 17 "Outer cylinder part 18 Keyhole 19 Key 20 Square shaft 21 Operation guide plate 21' Guide protrusion 22 Rotating lever 23 Restoring spring 24 Pin 25 Lock rod 26 Connection Part 27 urging spring 28 guide groove 29 operation knob 30 slide cam 31 guide groove 32 inclined cam 32 'engaging part 32 "non-engaging part 33 operating lever 34 urging spring 35 elevating guide groove 36 connecting part 37 push-up spring 38 convex Part 39 recess

Claims (3)

[Claims] 1. A handle post having a screw cylinder shaft integrally mounted on the 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 with a notch to set the turning position of the handle and a parking ring with a number of notches on the periphery corresponding to the turning position of the handle are fitted to each other and integrated with the handle post. A lock case fixedly rotatable to the outside, and a lock case engaged with the cutout portion of the lock ring in a lock case integrally extended to the outside of the fitting cylinder, for locking the handle to the turning position in a non-rotatable manner. While the mechanism is provided, an operation knob is made to protrude to one side of the lock case, and an operation lever is provided in the lock case to be engaged with the notch of the bicycle parking fixing ring following the operation of the operation knob. The handle at the turning position of the steering wheel A bicycle handle lock that allows the user to select between a lock and a fixed handle in a turning position where the key is not locked. 2. The operation knob is connected to a slide cam rotatably provided along the outer periphery of the bicycle parking fixing ring in the lock case, and the slide cam is exposed to the outside of the lock case. The operation lever is guided by a cam slope provided on the slide cam, moves up and down, and engages with a notch of the bicycle parking fixing ring, following the lateral movement of the operation knob. The bicycle handle lock according to claim 1, wherein: 3. The lock case includes a cylinder lock mechanism having a horizontal axis orthogonal to the handle post as the lock mechanism, and the cylinder lock mechanism includes a lock rod engaged with a notch of the lock ring. The slide cam has the operation knob facing a position adjacent to the cylinder lock mechanism, and biases the operation lever to a bias spring at one end connected to the cam slope. Then, the operating lever is raised to an engagement position with the notch of the bicycle parking fixing ring, and the operation lever is held at the non-engagement position at the other end of the cam slope against the urging spring. The operating knob is configured such that a convex portion provided at a lower end is engaged with a concave portion provided at a lower edge of the lock case at a disengaged position of the operating lever. Claim 2. Bicycle handle lock.