Cable Lock and an Universal Hold-Down Support

(1) Field of the Invention

The present invention relates to a cable lock and an universal hold-down support, and more particularly to a hold-down support which can locate an unique cable lock in multiple choices, and the unique cable lock is to be secured to an external shield on the lock housing of a common cable lock to provide various functions, such as protection, attraction appearance and easy of location.

(2) Description of Prior Art

The previous cable lock for a bicycle against theft, as shown in FIGS. 8 and 9 comprises a hold-down support A having an arm A1 extending from one side with a hole A11 extending from the arm A1 for securing to a bicycle frame C. The hold-support A includes a hollow cylinder A2 and a hole A21 intersecting with the hollow cylinder A2. A cable B having one end fastened to a lock core B1 extending from one end of the hollow cylinder A2. The other end of the cable is an open end which is adapted to be inserted into the hole A21 and locked therein.

The conventional hold-down support, in accordance with above-mentioned, is fixed on the bicycle frame C underneath the seat facing the rear direction which can hardly be adjusted to another position and direction. Furthermore, the cable B can only be routing either from left to right or vise versa that sometimes interfere the back seat to carry goods or person.

In the meantime, the conventional cable lock is covered with an external shield, which is made of either blasted soft rubber or hard plastic material as the lock housing to protect the lock itself and to beautify the exterior. The hard plastic shield is generally cast preformed before covering on the lock housing of the cable lock, and is welded up by heating or gluing. Hence some machines and more material should be required to increase in processing, further the production cost has to be increased.

It is a main object of the present invention to provide a hold-down support which direction is adjustable so that regardless of the location of the holder, the lock housing of the cable lock can be plugged in from at least four different directions.

It is another object of the present invention to provide a new shield for the lock housing of the cable lock that can join together directly in bayonet joint.

The present invention provides a hold-down support and a lock housing shield of a cable lock. The hold-down support has a holder at one side and a C-shaped staying bracket at another side. In practicing, the staying bracket is fastened on the seat supporting frame of the bicycle frame, the holder is used to locate the cable lock, in which two crossing through-holes provide four openings for the lock housing of the cable lock to plug in from either up-down or right-left directions, and at the corner of the crossing point there is a trepan on the side wall for the latch of the cable lock passing through and locked in the lock housing in order to locate the cable lock on the hold-down support. The shield of the lock housing of the cable lock is composed of two bayonet joining shrouds, wherein the contact surfaces of the two shrouds are formed projections and sliding caulking slots correspondingly respectively on each other as a bayonet plug and a bayonet socket, and there are certain location structures set upon between the two shrouds and the lock housing of the cable lock, and a dust cap as an escutcheon is hinged to the end of the shield to cover the keyhole.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of a lock housing of a cable lock of the present invention;

FIG. 3 is a perspective view of FIG. 2, partially sectioned;

FIG. 4 is a perspective view showing a first operating state of the present invention;

FIG. 5 is a perspective view showing a second operating state of the present invention;

FIG. 6 is a perspective view showing a third operating state of the present invention;

FIG. 7 is a perspective view showing a fourth operating state of the present invention;

FIG. 8 is a perspective view showing a conventional cable lock and a hold-down support; and

FIG. 9 is a perspective view showing a conventional cable lock and a hold-down support in practicing.

Referring to FIG. 1, the present invention includes a hold-down support and a cable lock. The hold-down support consists of a staying bracket 1 integral with a holder 2. The cable lock is composed of a lock housing 5, a latch 6 and a cable 7.

The staying bracket 1 is a C-shaped bracket having a couple opposite lips 11 formed on the respective edges of the opening with a fixing hole 111 for a bolt 3 and a nut 4 securing to it.

The holder 2 is an universal bracket having a trepan 21 on the front wall opposing the staying bracket 1, in which two crossing through-holes form up-down and right-left are formed providing four openings 22.

The lock housing 5 of the cable lock, as shown in FIG. 2, comprises a cylindrical body 51, two shrouds 52 53, an ornamental ring 54 and an escutcheon 55. Wherein, the cylindrical body 51 is a lock unit with a keyhole 511 at one end, a retainer shroud 512 with a polygonal portion 513 at another end, and a locking hole 514 at one side. The two shrouds 52 53 sleeve over the cylindrical body 51, therein a chucking lug 522 and a projection 526 are formed in the inner wall nearby the edge of the opening of the shroud 52 as a bayonet plug for connecting with bayonet-joint portion 531 on the shroud 53. The bayonet-joint portion 531 of the shroud 53 has a sliding slot 534 and an opening 535 on one end as a bayonet socket, and a beveled shoulder 536 at the root for the ornamental ring 54 to slide thereon. For sticking on the cylindrical body 51, an open hole 523 with a polygonal root recess 524, corresponding both in size and in shape to the polygonal portion 513 of the retainer shroud 512 of the cylindrical body 51, is formed at one end, plural ribs 525 are formed on the inner wall, and a through-hole 521 is formed on the side wall perpendicular and interconnect with the hollow space for displaying the locking hole 514 of the cylindrical body 51. The shroud 53, further comprises a hole 532 at the top end corresponding to the keyhole 511 of the cylindrical body 51, and several ribs spaced from each other on the inner wall, and a gap on one side of the hole 532 having two opposite grooves 537 for an escutcheon 55 pivoting therein with a couple of salient pivoting poles 551.

In combining, referring to FIG. 3, the shrouds 52 53 cover on the cylindrical body 51 from the respective ends, by fitting the polygonal portion 513 into the polygonal root recess 524, the shroud 52 is located on the cylindrical body 51, meanwhile the through-hole 521 coincides over the locking hole 514. Then mounting the shroud 53, by engaging the back end of the opening 535 with the chucking lug 522 and turning the shrouds 52 53 in an opposite directions respectively so that the projection 526 slides along the sliding slot 534 until it is blocked by the inner end wall., hence the shrouds 52 53 are blocked and securely attached.

In practicing, cooperating with said hold-down support, firstly, securing the staying bracket 1 on a desired position of the seat support 8 of a bicycle frame, as shown in FIG. 4 and the lock housing 5 of the cable lock can be inserted into the opening 22 from at any desired position, and the latch 6 is locked in the trepan 21 of the lock housing 2. Referring to FIG. 4 and FIG. 5, the lock housing 5 can be placed in the holder 2 in four different ways, in order for the cable 7 to be arranged in a proper routing place for avoiding it from being steal or interfere the rear seat. For this reason, the staying bracket 1 is able to change the fixing direction by turning it to the desired direction, as shown in FIG. 6 and FIG. 7. In addition, the hold-down support can be fixed on any other place of the bicycle frame such that to be more useful.