JP3349480B2 - Bicycle locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a bicycle locking device.

[0002]

2. Description of the Related Art As a bicycle locking device,
A locking member consisting of an incomplete ring is supported on a base member having a wheel insertion recess and fixed above the wheel, and a locking position where the tip locking portion of the locking rod is advanced into the wheel of the bicycle and the inside of the wheel. There is known a device for moving the device to an unlocked position where the device is retracted from the position. The locking rod is spring-biased in the unlocking direction, and in the locked position, the lock member holds the locking rod in the locked position against the spring member. When the lock member moves to a position where the lock member does not engage with the lock rod by a manual or electric unlocking mechanism, the lock rod moves to the unlock position by the force of the spring member.

[0003] In such a bicycle locking device, there is a problem that rust is generated on the spring member due to rainwater entering inside the device over a long period of use. Similarly, the key cylinder type manual unlocking mechanism may rust or malfunction due to rainwater entering the key cylinder type manual unlocking mechanism.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bicycle locking device which suppresses the generation of rust on a spring member for urging a locking rod to move in the unlocking direction. Aim. Another object of the present invention is to provide a bicycle locking device in which, when a key cylinder type unlocking mechanism is used as the unlocking mechanism, a malfunction does not easily occur in the unlocking mechanism.

[0005]

SUMMARY OF THE INVENTION The present invention provides a base member having an insertion recess for a wheel of a bicycle and fixed above the wheel; a locking position and a wheel where the tip lock portion extends into the wheel of the bicycle. A lock rod composed of an incomplete ring movably supported to an unlocking position retracted from the inside; a spring member for urging the lock rod to move in the unlocking direction; A locking member that can be moved to a locking position for locking the locking rod to a locking position, and an unlocking position for unlocking the locking rod; and an unlocking mechanism that moves the locking member from the locking position to the unlocking position. In a bicycle locking device, a locking rod is formed in a hollow shape, and a spring member is constituted by a tension coil spring having one end supported by a base member and the other end supported by the locking rod. Is always locked regardless of the position of the lock. It is characterized in that arranged so as to be positioned in the hollow portion. According to this configuration, since the tension spring is always located inside the lock rod, it is less likely to be exposed to rainwater and rust can be suppressed. In addition, since the tension spring is located in the lock rod, entry of foreign matter into the lock rod can be prevented. Furthermore, since the tension spring is not exposed from the lock rod, it becomes compact.

It is practical that the locking rod has a substantially U-shaped, U-shaped or C-shaped cross section. Further, it is preferable that the lock rod has a length of approximately a 3/4 arc in a plane.

As the unlocking mechanism, any unlocking mechanism including a key cylinder type manual unlocking mechanism can be used . When using the key cylinder type manual unlocking mechanism, the key cylinder type
Key cylinder with manual unlocking mechanism with keyway at one end
The key cylinder is fixed to the other end of the key cylinder.
Pivots together with the locker to release the lock member from the locked position.
It is preferable to have a pivot arm for moving to the lock position.
More preferably, the keyway side is forward when mounted on a bicycle.
Make sure that the key cylinder is lower than the pivot arm side.
It is preferable to fix the die to the base member by inclining the axial direction of the die. Thus, the keyway side is lower than the rotating arm side
If it is, it can prevent rainwater from entering the key cylinder.
Wear. Most preferably, the keyway side faces downward.
-With the cylinder axis set to the vertical direction,
In this mode, the cylinder manual unlocking mechanism is fixed. Ma
The operation knob for moving the lock rod from the unlocked position to the locked position and the key cylinder type manual unlocking mechanism are arranged on opposite sides with respect to the center plane of the wheel orthogonal to the rotation axis of the wheel. Is preferred.

[0008]

[0009]

1 to 6 show a first embodiment of a bicycle locking device according to the present invention. The bicycle locking device includes a base member 10, a cover member 20, a lock rod 30, a lock lever (lock member) 40, and a key cylinder type manual unlocking mechanism 60. Base member 1
Numeral 0 denotes a wheel fixing recess 11 for fixing a peripheral portion of a wheel, which is fixed to a frame located above a wheel of the bicycle.
have. The base member 10 is formed with advance / retreat holes 12 and 13 (FIG. 2) of a lock rod 30 formed of an incomplete ring at both sides of the open end of the wheel insertion concave section 11. Arc-shaped guide portion 14 serving as a guide for 30
(Same as above).

The lock rod 30 has a hollow shape having a substantially U-shaped cross section, and has a substantially 3/4 circular arc in plan view, and its distal end lock portion 37 is closed. Also, the base member 10
Has a radial projection 31 protruding outside, and an operation knob 32 is fixed to the radial projection 31. A tension spring 34 is housed in an inner space 33 having a U-shaped cross section of the lock rod 30, and one end of the tension spring 34 is hung on a spring hook pin 35 fixed to the lock rod 30. Tension spring 34
The other end of the lock rod 30 is hooked on a spring hook pin 36 implanted on the base member 10, and the locking force of the locking rod 30 of the locking rod 30 is adjusted by the tension force of the tension spring 34. It is constantly urged to move in the backward direction from the forward / backward hole 12). The cross-sectional shape of the locking rod 30 may be U-shaped or C-shaped.

When the locking rod 30 is pivotally moved against the force of the tension spring 34, the tip locking portion 37 of the locking rod 30
It protrudes from the advance / retreat hole 12 and enters the wheel, and further enters the advance / retreat hole 13. The end of the locking rod 30 opposite to the distal end locking portion 37 forms a locking end surface 38.

The diameter of the spring hook pin 36 is set to a diameter that fits into the U-shaped cross section of the lock rod 30 with a minimum clearance. On the base member 10, a swing guide (also a stopper) 16 which is fitted near the advance / retreat hole 12 and which is similarly fitted in the lock rod 30 with a minimum clearance is pivotally mounted by the shaft 15. . The swing guide 16 and the spring hook pin 36, together with the arc-shaped guide portion 14, guide the movement of the lock rod 30 and also function to more reliably prevent rainwater from entering into the lock rod 30. The swing guide 16 also functions as a stopper that determines the unlocked position of the lock rod 30. Tension spring 3
4 is located within the lock rod 30 in the entire movement range of the lock rod 30, and the lock end face 38 faces slightly downward even in the locked state of the lock rod 30, and if rainwater reaches the lock end face 38 temporarily. Does not penetrate into the lock rod 30 (FIG. 3). The tension spring 34, the swing guide 16 and the spring hook pin 36
This has the effect of simultaneously preventing not only rainwater but also foreign matter from entering the lock rod 30.

The lock lever 40 locks the lock lever 30 when the lock lever 30 is rotated from the unlock position (unlock position) to the lock position (lock position). As can be seen in FIG. 5, a lock upright portion 42 pivotally mounted on the base member 10 by a shaft 41 and engaged with the lock end surface 38 of the lock rod 30, and a key cylinder type manual unlocking. And a lock release upright portion 44 with which the rotating arm 61 of the mechanism 60 is engaged. The lock lever 40 is provided by a tension spring 46 (FIG. 2) stretched between a spring hook projection 45 provided near the lock release rising section 44 and a spring hook section on the base member 10. Reference numeral 42 is rotationally urged in a direction (counterclockwise in the drawing) for engaging with the side surface (lock end surface 38) of the lock rod 30.

The key cylinder type manual unlocking mechanism 60 has a fixed bracket 62 fixed to the base member 10, and a key cylinder 64 rotated by a key 63 is rotatably supported on the fixed bracket 62. Have been. The pivot arm 61 is fixed to the tip of the key cylinder 64, and the key cylinder 64 is inserted into the key groove 64a at the neutral position (lock position) in FIGS.
Is inserted, a predetermined angle rotation operation can be performed via the key 63. On the other hand, if the key 63 is removed at the neutral position, the key cylinder 64 is locked and cannot rotate. The key cylinder type manual unlocking mechanism 60, as key groove 64a of the key cylinder 64 (FIG. 1) faces downward, the key cylinder 6
4 is set and fixed. Like this
If the groove 64a faces downward, the key cylinder 64
There is no risk of rainwater entering the keyway 64a.

Cover member 2 fixed on base member 10
0, the wheel insertion recess 2 corresponding to the wheel insertion recess 11
1. The guide cover 22 of the lock rod 30 and the exposure hole 24 of the key cylinder type manual unlocking mechanism 60 are formed. The operating knob 32 of the locking rod 30 and the key cylinder type manual unlocking mechanism 6
0 are arranged on opposite sides of a center plane of the wheel, which is orthogonal to the rotation axis of the wheel.

The bicycle locking device operates as follows. When the lock rod 30 is rotated to the lock position located in the wheel by the operation knob 32 in the unlocked state (FIG. 5) where the lock rod 30 is outside the wheel of the bicycle, the lock end face 38 is provided with a lock lever. The lock uprights 42 of 40 are engaged. That is, since the lock lever 40 is constantly urged by the tension spring 46 in the direction in which the lock upright portion 42 comes into contact with the lock rod 30, the lock end face 3 of the lock rod 30 is locked.
8 rotates in the biasing direction at the moment when it exceeds the lock upright portion 42, and the lock upright portion 42 engages with the lock end face 38 to hold the lock rod 30 in the locked position (FIG. 3). At this time, the key cylinder 64 of the key cylinder type manual unlocking mechanism 60 is in the neutral position (lock position).

To unlock in this locked state, the key 63 is inserted into the key groove 64a of the key cylinder 64 of the key cylinder type manual unlocking mechanism 60, and the key cylinder 64 is turned clockwise in FIGS. Move. Then, the rotation arm 61 rotating integrally with the key cylinder 64 pushes the unlocking upright portion 44 to rotate the lock lever 40 clockwise in FIG.
Is disengaged from the lock end face 38. As a result, the lock rod 30 constantly urged to move in the unlocking direction by the tension spring 34 instantaneously moves to the unlocking position and is unlocked (FIG. 5). At this time, the operation knob 32 of the lock rod 30 is also
However, since the operation knob 32 and the key cylinder type manual unlocking mechanism 60 are arranged on the opposite sides with respect to the center plane of the wheel orthogonal to the rotation axis of the wheel,
There is no possibility that the operation knob 32 will contact the hand of the operator holding the key 63.

7 to 12 show another embodiment of the bicycle locking device according to the present invention. This embodiment is different from the first embodiment in that the rotation urging direction of the lock rod 30 is reversed, and instead of the lock end face 38, a lock recess 38 'is formed in the lock rod 30 at an intermediate position thereof. In that the shape of the lock lever 40 'is changed, the position of the operation knob 32 is changed from the side surface of the lock rod 30 to the upper surface, and the operation knob 32 and the key cylinder type manual unlocking mechanism 60 The point that is arranged on one side with respect to the center plane of the wheel, which is orthogonal to the above, is the main change.

That is, the tension spring 34 urges the lock lever 30 to rotate counterclockwise in FIGS.
It is stretched between a spring hook pin 35 on the locking rod 30 and a spring hook pin 36 on the base member 10. Regardless of the movement position of the lock rod 30, this tension spring 34 is located in the lock rod 30 having a U-shaped cross section.

The lock lever 40 'is provided with a lock recess 38'.
And a lock release portion 44 ′ which is engaged and disengaged with the rotating arm 61 of the key cylinder type manual unlocking mechanism 60, and the torsion coil spring ( (Not shown), the lock standing portion 42 ′ is constantly urged to move in the direction in which it comes into contact with the lock rod 30. The operation knob 32 protrudes upward from an arc-shaped groove 25 formed in the guide cover portion 22 of the cover member 20. The position of the key cylinder type manual unlocking mechanism 60 is determined by the key cylinder 6
The same is true including the point that the key groove 64a of No. 4 faces downward.

According to the above-described second embodiment, the same operation and effect as those of the first embodiment can be obtained. Thus, the rotation direction of the lock lever 30 and the lock levers 40, 40 '
Has a degree of freedom. Regarding the direction of the key cylinder type manual unlocking mechanism 60, in both of the embodiments, the key groove 64a of the key cylinder 64 faces downward, but the key groove 64a side of the key cylinder 64 is rotated by the rotating arm.
If the key cylinder type unlocking mechanism 60 is installed by inclining the axial direction of the key cylinder 64 so as to be lower than the 61 side, it is possible to prevent rainwater from entering the key cylinder 64. The shape of the lock lever 40 (40 ') (the lock upright portion 42 (42') and the lock release upright portion 44 (44 ')
Is changed according to the position of the key cylinder type manual unlocking mechanism 60 (rotating arm 61), it is possible to prevent rainwater from entering the key cylinder 64. The shape of the lock lever 40 (40 ') (the lock upright portion 42 (4
2 ')) and the position of the lock release standing portion 44 (44'))
Is a key cylinder type manual unlocking mechanism 60 (rotating arm 6
What is necessary is just to change according to the position of 1).

Regarding the arrangement structure of the tension spring 34 for urging the lock rod 30, it does not matter whether the unlocking device is the key cylinder type manual unlocking mechanism 60 of the illustrated embodiment. That is, the lock lever 40 can be unlocked by an electric mechanism or the like other than the key cylinder type manual unlocking mechanism 60, and the arrangement of the spring member of the present invention is also useful in this case.

[0023]

According to the present invention, the generation of rust on the spring member for urging the lock rod to move in the unlocking direction can be suppressed.
Further, when a key cylinder type unlocking mechanism is used as the unlocking mechanism, it is possible to obtain a bicycle locking device in which the unlocking mechanism is less likely to malfunction.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an embodiment of a bicycle locking device to which the present invention is applied.

FIG. 2 is an exploded perspective view of the main part.

FIG. 3 is a plan view of a main part in the locked state (locked state).

FIG. 4 is a view taken in the direction of the arrow IV in FIG. 3;

FIG. 5 is a plan view of a main part in the unlocked state (unlocked state).

6 is a view taken in the direction of arrow VI in FIG. 5;

FIG. 7 is an external perspective view of another embodiment of the bicycle locking device to which the present invention is applied.

FIG. 8 is a plan view of a main part in the unlocked state (unlocked state).

FIG. 9 is a view on arrow IX in FIG. 8;

FIG. 10 is a plan view of a main part in the locked state (locked state).

FIG. 11 is a view taken in the direction of arrow XI in FIG. 10;

FIG. 12 is a perspective view of a main part of the lock mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base member 11 Wheel insertion recessed part 15 Shaft 16 Swing guide 20 Cover member 21 Wheel insertion recessed part 22 Guide cover part 30 Lock rod 31 Radial projection 32 Operation knob 34 Tension spring 35 36 Spring hook pin 37 Tip lock part 38 Lock end face 40 40 'Lock lever (lock member) 41 Shaft 42 42' Lock rising part 44 44 'Lock releasing rising part 45 Spring hook 46 Tension spring 60 Key cylinder type manual unlocking mechanism 61 Rotating arm 62 Fixed bracket 63 Key 64 Key cylinder 64a key insertion hole

Claims (5)

(57) [Claims] 1. A base member having an insertion recess for a bicycle wheel and fixed above the wheel; a locking position at which a tip lock portion advances into the bicycle wheel and retreats from the wheel. A locking rod composed of an incomplete ring movably supported at an unlocking position; a spring member for urging the locking rod to move in the unlocking direction; and a locking position against the spring member. A locking member movable between an unlocking position for unlocking the locking rod and an unlocking position for unlocking the locking rod; and an unlocking mechanism for moving the locking member from the locking position to the unlocking position. In the apparatus, the lock rod is formed in a hollow shape, and the spring member is constituted by a tension coil spring having one end supported by the base member and the other end supported by the lock rod. Regardless of the position of the lock, Bicycle locking device, characterized in that arranged so as to be positioned in the hollow portion. 2. A bicycle locking device according to claim 1, wherein said locking rod has a substantially U-shaped, U-shaped or C-shaped cross section. 3. The locking device for a bicycle according to claim 1, wherein the locking rod has a substantially 3/4 arc in a plane. 4. The bicycle locking device according to claim 1, wherein the unlocking mechanism is a key cylinder type manual unlocking mechanism, and the key cylinder type manual unlocking mechanism is provided at one end. Key cylinder with keyway and this key
Fixed to the other end of the cylinder and integrated with the key cylinder
Rotate to move the lock member from the locked position to the unlocked position
And a rotating arm for
So that the keyway side is lower than the pivot arm side
A bicycle locking device fixed to a base member by tilting an axial direction of the key cylinder . 5. The bicycle locking device according to claim 4, wherein the operation knob for moving the lock rod from the unlocked position to the locked position and the key cylinder type manual unlocking mechanism are configured to rotate wheels. A bicycle locking device arranged opposite to a center plane of the wheel perpendicular to the axis.