NL2003230C2

NL2003230C2 - Horse shoe padlock for bicycle.

Info

Publication number: NL2003230C2
Application number: NL2003230A
Authority: NL
Inventors: Fon-Hsiung Fu
Original assignee: Fon-Hsiung Fu
Priority date: 2009-07-17
Filing date: 2009-07-17
Publication date: 2012-01-16
Also published as: NL2003230A

Description

Horse shoe padlock for bicycle

The present invention relates to a bicycle lock and more particularly, to a horse shoe padlock of the type defined in the preamble of claim 1. Such a horse shoe padlock is known, e.g. from EP 1 834 864 A1.

5 A regular horse shoe padlock for bicycle, as shown in Fig. 1, generally comprises a top casing 10 and a bottom casing 11 that are fastened together and have a respective rear accommodation chamber 12 at the rear side, a shackle 13 mounted in between the top casing 10 and the bottom casing 10 11 and movable between a close position and an open position, and a lock cylinder holder 14 mounted in the rear accommodation chambers 12 of the top casing 10 and the bottom casing 11 to hold a lock cylinder 15 that is operable with a predetermined key to lock the shackle 13 in the close 15 position. The lock cylinder holder 14 may be molded from plastics or made of zinc aluminum alloy. An evil person may use a screwdriver or pry to damage the rear accommodation chamber 12 of the top casing 10 and to further destruct the lock cylinder holder 14. Therefore, this design of horse 20 shoe padlock is not safe in use.

The above-identified document EP 1 834 864 A1 discloses a horse shoe padlock in which reinforcement for the lock cylinder holder consists of three parts, a front armour, a rear armour and a top armour. This leads to a 25 relatively complex structure. This armour is rectangular and is restricted to a chamber accommodating the lock cylinder holder.

Further horse shoe padlocks including reinforcemenare disclosed in the prior art documents 30 EP 0 443 217 A1, DE 33 08 997 Al, GB 1 555 383 A and NL 80 01 496 A.

2

The present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a horse shoe padlock, which has means to reinforce the structural strength and to protect the lock 5 cylinder holder against damage by an evil person by an external tool.

To achieve this and other objects of the present invention, the horse shoe padlock is characterized in that the reinforcing steel shield includes a top wall extending 10 substantially parallel to the top and bottom casings, two side walls and a rear wall at least partly enclosing said lock cylinder holder, wherein the top wall and the side walls have protrusions extending at least partially into the legs of said top casing and said bottom casing, and wherein 15 the reinforcing steel shield further includes a front wall at least partially enclosing said shackle and an interior wall between said lock cylinder holder and said shackle.

In this way the lock cylinder holder that holds a lock cylinder in the rear side of the top and bottom casings is 20 protected against damage by an evil person by a pry or the like and the structural strength of the horse shoe padlock is reinforced.

Fig. 1 is an exploded view of a horse shoe padlock according to the prior art.

25 Fig. 2 is an exploded view of a horse shoe padlock according to the present invention.

Fig. 3 is a sectional assembly view of the horse shoe padlock according to the present invention.

Referring to Figs. 2 and 3, a horse shoe padlock 30 for bicycle in accordance with the present invention, is shown comprising a top casing 10 and a bottom casing 11 that are fastened together and have a respective rear accommodation chamber 12 at the rear side, a shackle 13 3 mounted in between the top casing 10 and the bottom casing 11 and movable between a close position and an open position, a lock cylinder holder 14 mounted in the rear accommodation chambers 12 of the top casing 10 and the 5 bottom casing 11 to hold a lock cylinder 15 that is operable with a predetermined key (not shown) to lock the shackle 13 in the close position, and a reinforcing shield 20 capped on the rear sides of the top casing 10 and the bottom casing 11 to shield the rear accommodation chambers 12 and to 10 reinforce the structural strength of the rear accommodation chambers 12. The reinforcing shield 20 is made of a steel plate capable of protecting the lock cylinder holder 14 against damage by an evil person by a pry or the like.

Although a particular embodiment of the invention 15 has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.

Claims

1. Hoefijzervormig fietsslot, omvattende: een bovenste huis en een onderste huis die aan elkaar bevestigd zijn, waarbij het bovenste huis en het onderste huis elk een achterste opnamekamer vertonen die 5 zich aan een achterzijde daarvan bevindt, alsmede twee benen die zich vanaf de achterste opnamekamer uitstrekken om een hoefijzervorm te bepalen, een tussen het bovenste huis en het onderste huis aangebracht sluitorgaan dat beweegbaar is tussen een 10 sluitstand om het hoefijzervormig fietsslot stevig aan een fiets vast te maken en een open stand om het hoefijzervormig fietsslot van de fiets los te maken, en een cilinderslothouder die aangebracht is in de achterste opnamekamers van het bovenste huis en het onderste 15 huis en die een cilinderslot vasthoudt dat bedienbaar is met een bepaalde sleutel om het sluitorgaan in de afsluitstand te vergrendelen, waarbij het hoefijzervormig fietsslot verder een versterkend stalen schild omvat dat afdekkend aangebracht is 20 op de achterzijden van het bovenste huis en het onderste huis om de achterste opnamekamers van het bovenste huis en het onderste huis af te schermen en om de constructieve sterkte van de achterste opnamekamers van het bovenste huis en het onderste huis te vergroten, met het kenmerk, dat het 25 versterkend stalen schild een bovenwand omvat, die zich in hoofdzaak evenwijdig aan het bovenste en onderste huis uitstrekt, alsmede twee zijwanden en een achterwand die de cylinderslothouder althans ten dele omsluiten, waarbij de bovenwand en de zijwanden uitstekende delen vertonen die 30 zich althans gedeeltelijk uitstrekken in de benen van het bovenste huis en het onderste huis, en waarbij het versterkend stalen schild verder een voorwand omvat die het sluitorgaan althans ten dele omsluit, alsmede een binnenwand tussen de cylinderslothouder en het sluitorgaan.A horseshoe-shaped bicycle lock, comprising: an upper housing and a lower housing attached to each other, the upper housing and the lower housing each having a rear receiving room located at a rear thereof, and two legs extending from the rear extend the receiving chamber to determine a horseshoe shape, a locking member arranged between the upper housing and the lower housing movable between a closing position to securely attach the horseshoe-shaped bicycle lock to a bicycle and an open position to release the horseshoe-shaped bicycle lock from the bicycle and a cylinder lock holder mounted in the rear accommodation chambers of the upper housing and the lower housing and holding a cylinder lock operable with a particular key to lock the locking member in the locked position, the horseshoe-shaped bicycle lock further comprising a reinforcing steel shield includes covering the rear sides of the upper housing and the lower housing to shield the rear recording chambers of the upper housing and the lower housing and to increase the structural strength of the rear recording chambers of the upper housing and the lower housing, characterized in that it reinforcing steel shield comprises an upper wall which extends substantially parallel to the upper and lower housing, as well as two side walls and a rear wall which at least partially encloses the cylinder lock holder, the upper wall and the side walls having projecting parts extending at least partially in the legs of the upper housing and the lower housing, and wherein the reinforcing steel shield further comprises a front wall which at least partially encloses the closing member, as well as an inner wall between the cylinder lock holder and the closing member.