CN1288997A

CN1288997A - Cylinder lock body

Info

Publication number: CN1288997A
Application number: CN 00128803
Authority: CN
Inventors: S·莫特图拉
Original assignee: Mottura Serrature di Sicurezza SpA
Current assignee: Mottura Serrature di Sicurezza SpA
Priority date: 1999-09-22
Filing date: 2000-09-21
Publication date: 2001-03-28
Anticipated expiration: 2020-09-21
Also published as: CN1332112C; ES2166215T3; EP1091058A1; DE69900510T2; EP1091058B1; TR200002726A1; DE69900510D1

Abstract

A cylinder lock body comprises two cylindrical half-housings (2, 3) with two respective half-flanges (7, 8) connected by a bridge-like portion (9) in which a hole (10) is formed for a cylinder lock fixing screw. On one face of one of the two half-flanges (7, 8) and on the opposite face of the other half-flange there are secured two reinforcing elements (11, 12) which have a portion (11a, 12a) surrounding the hole (10) for the fixing screw. Each reinforcing element extends only on one of the two half-flanges, so that in case of flexural rupture of the lock body at the bridge-like portion (9), the two half-housings (2, 3) cannot be fully separated from each other, since the respective reinforcing elements (11, 12) freely rotatably engage the fixing screw with their highlet-shaped ends (11a, 12a).

Description

Cylinder lock body

The present invention relates to cylinder lock, the cylinder lock that particularly relates to this pattern, its body has two opposed coaxial circles tubular half housings, be used for admitting the cylindrical shape lock core, there is a bead to stretch out from a side of body, in cylindrical shape half housing, be shaped on the usefulness of some apertures for the cylinder lock brake bars of packing into, said two cylindrical shape half housings are separated by a breach, the rotatable claw that this breach is desired to be locked occupies, said breach extends in the bead, therefore form two half beads with cylindrical shape half housing adjacency, they are connected to each other with a bridge shape portion, are shaped on a hole in it and are used for the hold-down screw of engaging lock, and said body also comprises two reinforcements, they are fitted in respectively on two facing surfaces of said bead, and each reinforcement each some is around said hole.

Cylinder lock body with above-mentioned these features is disclosed by DE-U-29619634.But in the cylinder lock body of the shown above-mentioned pattern of this document, be located at each lip-deep reinforcement of bead and have basically as the shape of glasses, wherein folder portion is around fixing screw hole, and two ends then extend in two above-mentioned half beads.Therefore according to prior art, the problem that this device need solve is the intensity that need increase cylinder lock body in said bridge shape portion.In addition, usually lock body is made with brass, therefore when being subjected to flexural deformation, for example one of prizes with instrument in two and half housings when it is alternately swung up and down as the burglar, and said is that the vulnerable area of representative just can rupture with bridge shape portion.In order to increase the bending strength of lock body, just on two flange surface, add two reinforcements of making by high-strength material such as steel according to one type of prior art syringe in bridge shape portion.Obviously in order to reach this purpose, divide each reinforcement that is located on two flange surface all must have a sizable part to extend on another half bead, could increase the bending strength of lock body so effectively.

The objective of the invention is to provide a kind of lock body of above-mentioned pattern, but compare with above-mentioned prior art, it can be with much simple that effective ways hinder burglar's activity.

In order to reach this purpose, according to being characterized as of cylindrical shape lock body of the present invention, a lip-deep relevant reinforcement in bead only extends in one and half beads and bridge shape portion, and also only extends in another half bead and bridge shape portion at another lip-deep relevant reinforcement of bead.

Because above-mentioned feature, if lock body is subjected to bend fracture in above-mentioned bridge shape portion, in any case also can not make two and half housings separated from each other, because the reinforcement portion around fixing screw hole all becomes and can rotate freely around this screw, since they all be fixed on this screw around, therefore can stop two and half housings separately.

Obviously, just the principle with above-mentioned one type of prior art syringe institute basis is different from the beginning for the principle that device of the present invention adopted.In one type of prior art syringe, the purpose of reinforcement is the bend fracture that will prevent lock body, so each reinforcement all must extend on two and half beads.And under situation of the present invention, reinforcement is not to be used for preventing the bend fracture of lock body in bridge shape portion.But this fracture is thought inevitably, and this device is arranged like this, in case make when lock body is ruptured in bridge shape portion, two and half housings that are divided into therefrom can not be disconnected from each other.In fact, in this case, but each reinforcement all free ring rotates around the hold-down screw of lock, therefore can cause the relative rotation around screw axis of two and half housings of lock body, and can prevent the separation fully of this two and half housing, because same screw rotatably meshes by these two reinforcements.The nature, this effect be one type of prior art syringe can not obtain because in this case, each reinforcement all will extend on two and half beads of lock body.At this moment, if the power that the burglar adds is greatly to enough making two reinforcements fractures, two and half housings are incited somebody to action immediately can be separated from each other.And under situation of the present invention, the fracture of reinforcement can not take place, even so reinforcement can prevent still after brass spare is ruptured that under any circumstance two and half housings are disconnected from each other.Naturally main is, in order to obtain this result, can only extend on one and half beads in two and half beads at a lip-deep relevant reinforcement of bead, and can only extend on another half bead at another lip-deep relevant reinforcement.

From the explanation of unrestriced example of the present invention being done below in conjunction with accompanying drawing, can know other feature and advantage of the present invention, in the accompanying drawings:

Fig. 1 is the decomposition diagram according to cylindrical shape lock body of the present invention;

Fig. 2,3 is the lateral view of the lock body among Fig. 1; And

Fig. 4,5 is respectively along the sectional view of IV among Fig. 2-IV line and V-V line incision.

Consult accompanying drawing as seen, cylindrical shape lock body 1 has two relative and coaxial cylindrical shapes, half housing 2,3 and is prepared for admitting cylindrical shape lock core (not shown).Side at cylindrical shape half shell 2,3 is stretched out a bead 4, and the technology of knowing according to everybody in it is shaped on some apertures 5 and is used for admitting cylinder lock brake bars (also not shown), and these apertures are to make in the inner chamber of cylindrical shape half housing 2,3.

Two and half housings 2,3 are spaced-apart by a breach 6, and the rotatable claw (not shown) that this breach plans to be locked takies, and this breach also extends through the part of bead 4, form two and half beads 7,8, and they are linked together by a bridge shape portion 9.

Above-mentioned shape be this area be familiar with traditional.And, also having a threaded through hole 10 to be used for meshing the screw (not shown) in the bridge shape portion 9 so that lock body is fixed on the scaffold that for example is contained on the door according to prior art.

Be respectively equipped with reinforcement 11,12 on two surfaces of opposing mutually of bead 4, they are fitted in the bearing interior (only seeing in the reinforcement in Fig. 1) of the depression with complementary shape of making on bead 4 surfaces.

These two reinforcements 11,12 are made of steel, and lock body 1 is normally made by brass.

Can see from figure (particularly Fig. 5), two reinforcements 11,12 all only extend on one and half beads in two and half beads 7,8, and all respectively have termination 11a, a 12a to extend in bridge shape portion 9, the ring that forms 11b with holes, a 12b is around fixing screw hole 10.

As mentioned above, of may tool using prizing in two and half beads of burglar alternately moves up and down it, attempt making lock body 1 fracture until lock body 1 in bridge shape portion 1 by till the bend fracture fully.

According to prior art, being located at bead 4 each lip-deep reinforcement respectively respectively has a shape as glasses, and its central portion has two ends in addition around hole 10.And in the present invention, different is that each reinforcement only extends on one half a relevant bead, has only the end of a wound hole 10 simultaneously.But this textural simple difference is brought great difference in operation.In known devices, the purpose of two reinforcements is the bending strengths that will increase lock body.But the burglar can apply enough power is also ruptured two reinforcements, and such two and half housings 2,3 just immediately can be separated from each other, thereby the burglar just can easily unload lock.

And in the present invention, reinforcement 11,12 is not also made much contributions to the bending strength of bridge shape portion 9, but when being ruptured two cylindrical shapes, half housing 2,3 can not be separated fully in bridge shape portion 9, because in case fracture takes place since two end 11b of reinforcement 11,12 and 12b around screw, two and half housings 7,8 just can rotate freely around the hold-down screws that are engaged in the hole 10.No matter how big the burglar make strength, even make 9 fractures of bridge shape portion, it will can not make two and half housings separate fully forever.

Therefore obviously, can lock be opened the safe coefficient that provides much higher to unwarranted according to device of the present invention, making what adopted but is simple cheap facility only.

Certainly, under the situation that principle of the present invention remains unchanged, to above-mentioned just for explanation for the structure detail of example can make various variations, but still belong in the scope of the present invention.

Claims

1. cylindrical shape lock body, have two opposed coaxial circles tubular half housings (2,3), be used for admitting the cylindrical shape lock core, there is a bead (4) to stretch out from a side of body, in the cylindrical shape lock body, be shaped on the usefulness of some apertures (5) for the cylinder lock brake bars of packing into, said aperture is to make in the inner chamber of cylindrical shape half housing, said two cylindrical shapes, half housing (2,3) separated by a breach (6), the rotatable claw that this breach is desired to be locked occupies, said breach (6) extends in bead (4), therefore form two and cylindrical shape half housing (2,3) half bead (7 of adjacency, 8), they are connected to each other with a bridge shape portion (9), be shaped on a hole (10) in it and be used for the hold-down screw of engaging lock, said body (1) also comprises two reinforcements (11,12), they are fixed on respectively on two facing surfaces of said bead (4), each reinforcement (11,12) a part (11a is respectively arranged, 12a) around said hole (10)

It is characterized by, lip-deep corresponding reinforcement (11) in bead (4) is only gone up extension in this half bead (7) and bridge shape portion (9), and also only upward extends in another half bead (8) and bridge shape portion (9) at another lip-deep corresponding reinforcement (12) of bead (4).

2. according to the cylindrical shape lock body of claim 1, it is characterized by, each reinforcement (11,12) respectively has the termination (11a, 12a) of an annular with holes, around the hole (10) of said hold-down screw, and the opposite end (11c, 12c) on this corresponding half bead (7,8) of being fixed on of a frame shape is arranged respectively.

3. according to the cylindrical shape lock body of claim 1 or 2, it is characterized by, each is made of each reinforcement (11,12) a plain plate, is fitted in the bearing (13a) that of making on the respective surfaces of bead (4) has complementary shape.

4. a cylinder lock is characterized in that it comprises one according to each described lock body in the above claim.