Locks – Special application – For control and machine elements
Patent
1991-02-15
1993-03-30
Luebke, Renee S.
Locks
Special application
For control and machine elements
70233, 70 49, B62H 500
Patent
active
051973103
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a lock for the locking of a spoked wheel mounted in a fork on a bicycle, moped or a similar vehicle, said lock comprising partly a retaining part which can be attached at the one leg of the fork in which a blocking element in the form of a locking ring or locking arm is housed and is movable between a releasing position where the locking ring or the locking arm are free of engagement with the spoked wheel, and a blocking position, where the blocking element is in engagement with the spoked wheel and points towards an engaging part which can be secured at the other leg of the fork and in which engaging part the blocking element can be secured by means of first locking elements, and partly a locking track in the form of an aperture in which a locking piece can be introduced and secured by means of other locking elements, said locking piece being fastened to the free end of a cable or chain.
Locks of this kind, which are commonly known as bicycle locks, are used for the locking of a spoked wheel. In most cases, such locks are sufficient to prevent unauthorized removal of the bicycle.
However, there are situations in which the possibilities exist of breaking open such locks, which in practice means when there is time enough for this work to be carried out undisturbed.
In such cases, the known locks are not able to afford the necessary resistance against being broken open, the consequence being that these locks are often supplemented with so-called chain- or cable-locks.
These consist of a piece of chain or cable of a length, for example, of between 50 and 150 cm. The ends of the cable or chain can be locked together, either in an integrated lock housing or by means of a loose padlock.
This extra locking equipment enables the bicycle to be further secured, in that the cable or the chain can surround the spoked wheel as well as the frame and possibly also an external element such as a bicycle rack, a post or a lamp post.
Solely from the point of view of security, this solution is satisfactory, but it involves considerable inconvenience for the user. For example, the cable- or the chain-lock has to be taken along on the journey, which can be in an inconvenience since it takes up room in a bag, pocket, basket or carrier, and there is also the inconvenience of the extra key, which the lock requires, and which must similarly be taken care of.
Finally, this cable or chain-lock requires the use of both hands for its mounting and operation i.e. locking and unlocking. This is due to the fact that the cable or chainlock is difficult to manipulate because of its springy characteristics in relation to the bicycle, which therefore requires that the cable or chain-lock must be held firmly with the one hand while the locking parts are brought together and locked.
In order to avoid these inconveniences, it is known from U.S. Pat. No. 4,033,160 to incorporate a cable in a lock with a C-shaped locking member.
This lock with built-in cable-lock is an improvement in relation to the known lock combined with a loose cable-lock, but it is only of help with regard to the actual handling.
This lock is namely arranged in such a manner that the two locking systems can be used completely independently of each other, which can result in inadequate locking when only the cable lock is used. The cable-lock is a relatively inferior lock, and therefore a poorer lock than the actual bicycle lock with blocking member.
The object of the invention is to avoid the disadvantages of the known constructions, and this object is achieved with a lock of the initially described kind, the said lock according to the invention being characteristic in that the first locking elements are designed to be able to secure the locking ring or the locking arm only when the locking piece is secured by the other locking elements, and that the other locking elements are designed to be able to secure the locking piece only when the locking ring or the locking arm is secured by the first locking elements.
It becomes possible hereby to lock by a com
REFERENCES:
patent: 3965709 (1976-06-01), Belke
patent: 4033160 (1977-07-01), Mima
patent: 4571965 (1986-02-01), LeRoux
Basta Lasefabrik A/S
Boucher D.
Luebke Renee S.
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