CN85202952U - Bicycle lock - Google Patents

Abstract

The utility model discloses a bicycle lock whose front end of the lock core is provided with a lead angle to make the lock into a cone to reduce the phenomenon that when locking the bicycle the lock is jammed by bicycle spokes, and ensure that when the lock core is deviated from the keyhole, the lock core can also be inserted into the keyhole easily.

Description

Bicycle lock

The utility model relates to a kind of bicycle lock.

The Regular Bicycle lock is divided into lock housing and lock core two parts.Its opening is a circle jaggy.When lock core inserts in the keyhole of lock housing, forms an osed top and justify, thereby stoped the rotation of spoke, bicycle is pinned.

Though the front end of the lock core of this lock has lead angle, be flat head substantially.Therefore when the lock car, lock core is happened occasionally by the phenomenon that spoke blocks, and in addition, also owing to have the gap between lock core and the lock housing, making lock core depart from keyhole can not insert in the keyhole exactly sometimes.

In order to solve the problems referred to above of common lock, propose here: the front end of lock core is offered lead angle, make it become cone.Shown in Figure of description, 1 is lock housing among the figure, the 3rd, and the keyhole on the lock housing, the 2nd, lock core.2 front end is become a cone by lead angle.All can between desirable 60 °～90 ° of the drift angle.Because the existence of the lead angle of lock core front end, when making the lock car, the phenomenon of spoke kayser significantly reduces.And also can successfully insert in the keyhole (3) when between lock core and keyhole, having than big shearing.

Though this reform is very simple for the manufacturing of bicycle lock, brought very big convenience to the user.

Claims (1)

1, a kind of bicycle lock, the front end that it is characterized in that its lock core (2) is made it become cone by lead angle.The angle of cone is 60 °～90 °.

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