CN1072984A

CN1072984A - Lock

Info

Publication number: CN1072984A
Application number: CN92112661.1A
Authority: CN
Inventors: 诺亚兹·艾森
Original assignee: Mul T Lock Ltd
Current assignee: Mul T Lock Ltd
Priority date: 1991-11-20
Filing date: 1992-11-19
Publication date: 1993-06-09
Also published as: NO924462L; BR9204588A; HUT63676A; PL296675A1; EP0553509A1; IL100107A0; NO924462D0; IL100107A; AU2847592A; AU661734B2; ECSP920882A; HU9203636D0; PL171267B1

Abstract

A kind of method of using locking device in the environment with destruction tendency comprises the step that a lock is provided.This lock comprises a cylindricality lock core of holding the keyhole channel with the opening of going out within it, the configuration of opening of going out is passed the opening of going out with arrange being can to allow to be embedded in foreign body in the keyhole channel when key inserts, and can remove foreign body from locking.

Description

Lock

The present invention relates to lock, particularly door lock and padlock.

Existing a large amount of different locks, their great majority all have special purpose.The lock that past the applicant has developed comprises the padlock of reinforcement, and this padlock is at applicant/assignee's United States Patent (USP) (application number: described 4,464,915 and 4,548,058).

When padlock or cylindricality door lock were used in the environment with high destruction, they can be consumed was embedded keyhole channel with extraneous material and blocked easily, this extraneous material such as paper, timber, plastics or similar thing.

Along with United States Patent (USP) (application number: 965,409; 3,499,209; 3,820,364) in padlock and rotating switch mechanism are described, this rotating switch mechanism has an opening in the logical the inner of their keyholes separately.These disclosed contents do not show any special feature of these openings.

The purpose of this invention is to provide a kind of improved door lock or padlock, this door lock or padlock are to be specially adapted in the environment of high destruction and are can be not blocked at an easy rate.

According to preferred embodiment of the present invention, a kind of using method of the lockset that uses in having the environment of destruction tendency is provided, this method comprises provides one to include and define one and have the step of lock of the cylindricality lock core of the opening of going out in the inner; The configuration of this opening of going out and arrange it is to allow to be embedded in the foreign body of keyhole in logical when key inserts, to pass and go out opening and remove foreign body from locking.

In addition, according to preferred embodiment of the present invention, the step that provides also comprises provides a step of holding the volume of foreign body, and this volume is by going out opening and logical with the logical inner structure mutually of keyhole.

In addition, according to preferred embodiment of the present invention, remove step and comprise and pass that foreign body passes and the step outside the keyhole channel.

The preferred embodiment according to the present invention is to remove step to comprise the step that key inserts in addition, holds volume to cause the foreign body that embeds in advance in the keyhole channel to pass to go out opening to enter foreign body.

In addition, according to preferred embodiment of the present invention, lock such as padlock or door lock is provided, this lock comprises the cylindricality lock core and the foreign body that define keyhole channel and holds volume, this volume communicates with keyhole channel the inner by being formed on the going out opening of keyhole channel the inner, and it is that the foreign body that is configured and is arranged to allow to embed keyhole channel under the state that key inserts passes the opening of going out and enters in the foreign body volume that go out opening and foreign body hold volume.

One passage preferably is provided, passes this passage foreign body and hold volume and communicate with external environment condition.For example, in single-column shape lock core door lock, passage can be to be defined in a handle or the door knob.

In addition, according to the embodiment of the invention, door lock comprises double columnar form lock core door lock and holds volume, and this keyhole channel that holds volume and each cylindricality lock core structure mutually leads to and defined by the part keyhole channel of cylindricality lock core.

Moreover according to embodiments of the invention, lock also comprises a foreign body Move tool, and the configuration of this instrument is removed from holding volume for making foreign body.

Have to be, according to embodiments of the invention, foreign body holds volume at least partially by openable housing limited again, so foreign body can manually hold the volume from foreign body and to remove.

Openable housing can be integrally formed with the door handle.

According to preferred embodiment of the present invention, a kind of door lock also is provided, this door lock comprises bitubular shape housing; Wherein be formed with the cylindrical plag of key groove hole, this cylindrical plag is arranged in the side of bitubular shape housing; But and the manual operation gripping member that is arranged on bitubular shape housing second side, this gripping member has and the key groove hole of the cylindrical plag logical hollow interior of structure mutually.Therefore, be directed to extraneous material physical efficiency in the key groove hole by the application of force across and in the hollow interior.

The preferred embodiment according to the present invention also provides a kind of door lock, and this door lock also comprises a pair of barrel-type casing, and one is formed with the cylindrical plag of key groove hole therein, and this cylindrical plag is arranged in the side of bitubular shape housing; Be positioned at bitubular shape housing second side with key groove hole cylindrical plag the logical hollow volumes of structure mutually, so the foreign substance that is directed in the key groove hole is can be by the application of force herein across and in the hollow volumes.

Have again to be, the preferred embodiment according to the present invention, door lock also comprises a cranse, with one with the key conjugative component of cylindrical plag associated, and assembly comprises the key fastener, first compression spring and the axial pin assembly, and the compression spring places the key fastener and extends axially between the pin; Extend axially pin assemblies and comprise one and extend axially pin, a baffle ring and the second compression spring, therefore the general retainer shaft of this spring, extends axially pin and does not generally operationally mesh with cranse spare to the retracted position of stretching pin in relative baffle ring.

According to another embodiment of the present invention, door lock assembly further is provided, this door lock assembly comprises a pair of barrel-type casing, be formed on first cylindrical plag that first key groove hole is wherein arranged, this cylindrical plag is arranged in the side of bitubular shape housing, second cylindrical plag is to place second side of bitubular shape housing and be formed with therein and first key groove hole, the second logical key groove hole of structure mutually, so guiding enter extraneous material mass-energy in first key groove hole by the application of force at this across and into second key groove hole, and guiding enter second key groove hole extraneous material mass-energy by the application of force herein across and into first key groove hole.

In addition, according to preferred embodiment of the present invention, this device also comprises the instrument that an application of force is released foreign substance, is passed and arrive the outside herein by the application of force so guiding enters the extraneous material mass-energy of one of first and second key groove holes.

In addition, according to preferred embodiment of the present invention, be used for the instrument that the application of force releases and comprise a thin and flat relatively element, this element is at least two times of length of one of first and second key groove holes.

According to preferred embodiment of the present invention, a kind of padlock also is provided, this padlock comprises a housing, one places the cylindricality lock core of housing, and the keyhole channel that extends through to its second end from cylindricality lock core first end that defines, a yoke, one locking mechanism, this locking mechanism makes it to select yoke is locked on the housing by being operated of cylindricality lock core, and the device that is positioned at abut cylindroid lock core second end, this device is used to allow to be used in the instrument that the key groove hole of cylindricality lock core first end inserts makes foreign substance be released outside the key groove hole by the application of force.

In addition, the preferred embodiment according to the present invention, this device allows to comprise a volume that is defined in abut cylindroid key core second end in the housing, and this volume is used for holding the foreign substance of being released by the application of force from keyhole channel.

Be in addition, the preferred embodiment according to the present invention, this device allows to comprise one and is defined in abut cylindroid lock core second stomidium in the housing, is used for allowing the foreign substance by the application of force is come out from key groove hole to go out.

In addition, the preferred embodiment according to the present invention, padlock also comprises removably the yoke reinforcing element of installing, and the volume that being used for wherein held foreign substance is between housing and the yoke reinforcing element removably installed.

In addition, according to preferred embodiment of the present invention, housing comprises a relative not harder relative harder overcoat with in inside.

Be in addition, the preferred embodiment according to the present invention, a keyhole channel import protected apron places the first end place of abut cylindroid lock core.

Can having more fully to the present invention from following narration, understanding and cognition accompanying drawing wherein be:

Fig. 1 is a kind of diagram of door lock, and this door lock has the extraneous material that is embedded in the key groove hole;

Fig. 2 A is the structure sectional view and the use thereof of a kind of single-column shape lock core door lock of the preferred embodiment according to the present invention;

Fig. 2 B is the sectional view according to Fig. 2 A, shows that extraneous material is passed key groove hole by the application of force;

Fig. 2 C is a kind of sectional view of single-column shape lock core door lock, and this door lock is different with the lock of Fig. 2 A;

Fig. 3 is the amplification diagram of the partial devices of Fig. 2 A;

Fig. 4 A is the structure cut-away view and the use thereof of a kind of double columnar form lock core door lock of the preferred embodiment according to the present invention;

Fig. 4 B is according to the sectional view of Fig. 4 A, and the demonstration foreign substance is come out from a side of twin columns lock core by the application of force and enters opposite side;

Fig. 4 C is the sectional view according to Fig. 4 A, Fig. 4 B, shows that foreign substance is passed key groove hole by the application of force;

Fig. 5 is the sectional view of the V-V line along Fig. 2 B;

Fig. 6 is the diagram of the padlock of preferred embodiment according to the present invention;

Fig. 7 A and Fig. 7 B are the sectional views of the padlock of Fig. 6, show anti-a kind of blocked padlock before and the padlock in the anti-obstruction process of stopping up respectively;

Fig. 8 A and Fig. 8 B are a kind of preferable Fig. 6,7A of being used for of diagram, the latch mechanism of the padlock among the 7B, the order expression state that pins and do not pin respectively.

Consult Fig. 1, illustrated a kind of door lock cylindricality lock core 10, destroyed person embeds extraneous material (for example splint) in key groove hole 11.The present invention plans to provide a kind of door lock, and this door lock can be removed from key groove hole 11 easily and do not require from door and remove the cylindricality lock core or do other dismounting such as the extraneous material of splint 12.

Consult Fig. 2 A-5, this figure waits the structure and the use of diagram door lock of preferred embodiment according to the present invention, and this door lock includes the cylinder outer race 20 of both sides end.Fig. 2 A-2C and Fig. 3 and Fig. 5 illustrate the single-column shape lock core of the embodiment of the invention, and Fig. 4 A～4C illustrates double columnar form lock core of the present invention.

According to single-column shape lock core embodiment (shown in Fig. 2 A), single-column shape lock core 22 is arranged on a side of housing 20, can manually operated lock handle assembly 24 settings be engaged on opposite side.Cylindricality lock core 22 can be that traditional lock core can be suitable for being arranged in the barrel-type casing of both sides end and has and a plurality of lock pins 28 logical key groove hole 26 of structure mutually.

One key lock assembly (this assembly is shown in greater detail in Fig. 3) And is set in the inner of cylindricality lock core 22 comprises a key fastener 30, moving that this key fastener is inside limited by limit rod 32, this limit rod 32 passes through the key groove hole 26 in the cylindricality lock core 22 regularly and installs, key fastener 30 is because compression spring 34 and there is a relative gap general the maintenance with limit rod 32, as what arrive seen in Fig. 2 A.

Compression spring 34 places between key fastener 30 and the pivot pin assembly 36, and this pivot pin assembly comprises axially extended pin 38, baffle ring 40, keeps the position of pin 38 relative baffle rings 40 so that sell 38 and usually can not mesh with cranse 44 with moving with compression spring 42 is general.The different relative positions of each of key operated locked component is shown among Fig. 2 A and is key not to be inserted in the key groove hole, and this figure shows that also the extraneous material such as splint 46 is present in 26 li of key groove holes.

Seen as Fig. 2 A, with traditional holding ring 48 cylindricality lock core 22 is remained in the barrel-type casing 20, and grip assembly 24 is being kept with traditional holding ring 50.Engagement by corresponding groove 56 in projection 54 and the cranse 44 make grip assembly 24 for rotation operationally with cranse 44 engagements.

The special feature of the present invention is that grip assembly 24 forms and has a general hollow parts 52, this hollow parts communicates with the inner chamber of key groove hole 26, so the extraneous material that can allow to have put into key groove hole 26 is passed the inner chamber that key groove hole 26 enters hollow parts 52 by the application of force, and is shown as Fig. 2 B.

Be appreciated that from Fig. 3 and 2B, when key 60 inserts in the key groove hole 26 fully (shown in Fig. 2 B), the leading edge of key moves axially key fastener 30 and engages this with limit rod 32 up to the key fastener axially-movable compression spring 34 and axial force distribution make it axially to pass forward baffle ring 40 and compression and spring 42 simultaneously in pin 38 forward.Pin 38 axially forward extensions causes it to enter being formed on shape groove 66(Fig. 3 correspondingly in the cranse 44) in form exercisable engagement, therefore the rotation of key 60 has produced the rotation of cylindricality lock core 22 and the corresponding rotation of lock 38 that can mesh and cranse 44 with moving, so lock operation is provided.

Fig. 2 B also illustrates the foreign substance how leading edge of key 60 to force in such as splint 46 and leaves key groove hole 26, along the limit of limit rod 32 and enter in the hollow volumes in the hollow part 52.Please note that when needs the foreign substance that is collected in the part 52 can be both can take away by removing grip element 68, also can take away by when removing holding ring 50, removing grip assembly 24 from barrel-type casing 20.

According to preferred embodiment of the present invention (shown in Fig. 2 C), in handle element 68, be formed with a passage 70, this passage is by hole 72 and structure is logical mutually with external environment condition.The outstanding advantage of this feature is that foreign body can pass hole 72, therefore, takes foreign body away and has not both removed grip element 68 and also do not remove grip assembly 20.

Be arranged on a side of housing 20 and the second cylindricality lock core 123 is arranged on opposite side at (shown in Fig. 4 A) first cylindricality lock core 122 among the embodiment of double columnar form lock core.

Cylindricality lock core

122 and 123 comprises

key groove hole

126 and 127 separately respectively, and is connected with separately lock

pin group

128 and 129 respectively, and their one group of lock pin is preferably accurately identical with another group.

Key operated locked component is arranged between the inners of

cylindricality lock core

122 and 123 and comprises

key fastener

130 and 131, their inwards mobile are to be limited 132,133 restrictions of bar, and this limit rod is fixed in and passes through respectively the key groove hole in

cylindricality lock core

122 and 123 126 and 127 and install.Because

compression spring

134 and 135, key fastener 130 generally with at

relative limit rod

132 and 133 keeps one at interval with 131.

Compression spring 134 places between key fastener 130 and the axial pin assembly 136, spring 135 places between key fastener 131 and the axial pin assembly 137, assembly 136 and 137 comprises axially extended

138 and 139,

baffle ring

140 and 141 and the compression spring 142 and 143, generally be to keep selling 138 and 139 positions that lay respectively at the indentation of

relative baffle ring

140 and 141, therefore, generally be that

138 and 139 can not mesh with cranse 144 with moving.Illustrate the relative position of each different elements of key operated locked component among Fig. 4 A, wherein key is not inserted in each

key groove hole

126 and 123, and has shown that the extraneous material such as splint 146 exists in the key groove hole 126.

See Fig. 4 A, by

traditional holding ring

148 and 149,

cylindricality lock core

122 and 123 remains in the barrel-type casing 20.

From Fig. 4 B, be appreciated that, when key 160 inserts in the key groove hole 126 fully (shown in Fig. 4 B), the leading edge of key moves axially key fastener 130 and engages with limit rod 132 up to it, this moves axially compression spring 134 and forces in pin 138 and axially passes baffle ring 140 forward, compress spring 142 simultaneously, axially the extending forward of lock 138 causes it to enter in the groove 166 that is formed on the respective shapes in the cranse 144 and is engaged with.Therefore the rotation of key 160 produce cylindricality lock core 122 rotation and corresponding operationally and the lock 138 of engagement and the rotation of cranse 144, so lock operation just is provided.

Though do not show in the drawings, yet be appreciated that similarly cranse 144 also rotates when key 160 inserts in the key groove hole 127 fully and rotates.In the case, pin 139 operationally meshes and rotates cranse 144.

Fig. 4 B has shown also how the leading edge of key 160 forces in foreign substance such as splint 146 and make it to be pushed out key groove hole 126 and enter in the key groove hole 127 along the limit of limit rod 132.

See also Fig. 4 C, this figure shows the step of using Move tool 170 that foreign substance is removed fully from two

cylindricality lock cores

122 and 123, this Move tool preferably comprises a non-tip, narrow, thin, flat also resilient a little silver 172, and twice is longer than one of

cylindricality lock core

122 and 123 at least.The leading edge that Fig. 4 C illustrates the silver 172 of instrument 170 is how to force in foreign substance 146 to pass key groove hole 127 and arrive the outside, thereby has prevented the obstruction door lock fully.Should understand, instrument 170 can be used for from key groove hole 126 row equally and ejects foreign substance.

See also Fig. 6,7A and 7B, this figure waits structure and the use that shows according to the padlock of the embodiment of the invention, and this padlock comprises a housing 210, typically form with soft relatively metal, for example iron is preferably enclosing with reinforcing sleeve 212 bags, and reinforcing sleeve typically forms with heat-treated steel.

The suitable dimensions volume of housing 210 is cylindricality lock cores 214, and this cylindricality lock core is traditional structure and is limited with keyhole channel 216 that this keyhole channel extends to second end 220 from first end 218 of cylindrical pin core.Cylindricality lock core 214 is arranged to operationally engage (shown in Fig. 8 A and 8B) with first and second securing

rods

212 and 224, and is exercisable in order to select to lock yoke 210 in housing 210.

In addition, stiffening device 228 is partly solid on valve jacket 212 around locking yoke 226 and available screw 230 spiral shells.First end 218 of keyhole channel guard shield 232 abut cylindroid key cores 214 is provided with, and flatly is located at cylindricality key core 214 and is formed between the keyhole 234 on the cover 212.

The preferred embodiment according to the present invention, for the foreign substance 236 that is arranged in keyhole channel 216 being ostracised away and a kind of device being provided, illustrate volume 238 in this embodiment in housing 210, when this volume inserts by the application of force when extraneous material because of key 240, collect foreign substance 236.Hole 242 in the preferred embodiment according to the present invention, volume 238 and housing 210 structure mutually is logical, so allow extraneous material 236 to arrive the opening of going out from housing.

In the illustrated embodiment, hole 242 is threaded, so but receive screws 230 can be used to like this removably stiffening device 228 is connected on the housing 210, such just as explained above.Alternatively, volume 238 is can be deleted, keyhole channel 216 directly with on cylindricality lock core 214 second ends go out open pore mutually structure lead to.The open pore of going out can be clogged in case extraneous material enters by common any suitable device.

Referring to Fig. 8 A and 8B, this figure waits

diagram securing rod

222 and 224, and the configuration that can see securing rod allows foreign substance 236 to pass herein, is found in Fig. 7 B especially.

Those skilled in the art are appreciated that the present invention is not limited to foregoing description and diagram.

Claims

1, a kind of method of using locking device in the environment with destruction tendency is characterized in that the step that this method comprises is:

One lock is provided, and this lock comprises a cylindricality lock core that defines a keyhole channel, has an outlet opening in the inner of keyhole channel;

The configuration of outlet opening and layout are that the foreign body that can allow to be embedded in the keyhole channel when key inserts passes the opening of going out;

Remove foreign body from locking.

2, method according to claim 1 is characterized in that the step that provides a foreign body to hold volume also is provided the step that provides, and it is logical by the inner structure of go out opening and keyhole channel that this foreign body holds volume.

3, as method as described in the claim 2, it is characterized in that the step of removing foreign body comprises the step of inserting key, cause the foreign body that embeds in advance in the keyhole channel to pass the opening of going out and enter foreign body and hold in the volume.

4, a kind of lock is characterized in that, this lock comprises:

-define the cylindricality lock core of a keyhole channel;

-foreign body holds volume, and this volume is logical by the inner structure of go out opening and keyhole channel that is formed on keyhole channel the inner;

Going out that opening and foreign body hold the configuration of volume and arrange is can allow to make when key inserts the foreign body that is embedded in the keyhole channel to pass the opening of going out to enter foreign body and hold in the volume.

5, as lock as described in the claim 4, it is characterized in that this lock comprises padlock.

6, as lock as described in the claim 4, it is characterized in that this lock comprises door lock.

7, as lock as described in the claim 6, it is characterized in that, this door lock comprise double columnar form lock core door lock with the keyhole channel of each cylindricality lock core mutually structure logical hold volume, this hold volume by the keyhole channel of cylindricality lock core a part limited.

As lock as described in one of claim 4 to 7, it is characterized in that 8, it is to be used for holding volume from extraneous material to remove the foreign body of foreign body and remove instrument that described lock also comprises its configuration.

9, as lock as described in one of claim 4 to 7, it is characterized in that extraneous material holds volume and defined by an openable housing at least in part, removed so foreign body can manually hold the volume from foreign body.

10, as lock as described in the claim 9, it is characterized in that described lock also comprises a passage, pass that this passage foreign body holds volume and the environment facies structure is logical.

11, as lock as described in the claim 10, it is characterized in that this passage is limited in the handle.

12, as lock as described in the claim 9, it is characterized in that openable housing forms as one with the door handle.

13, a kind of door lock is characterized in that, this door lock comprises:

-bitubular shape housing;

-cylindrical plag wherein is formed with a key groove hole and is arranged on a side of bitubular shape housing;

-can be arranged in second side of bitubular shape housing by manually operated handle spare, and have and the key groove hole of the cylindrical plag logical hollow interior of structure mutually, thus guiding enter extraneous material mass-energy in the key groove hole by the application of force and at this across and into hollow interior.

14, a kind of door lock is characterized in that, this door lock comprises:

-bitubular shape housing;

-have a cylindrical plag that is arranged on bitubular shape housing one side of the key groove hole that is formed on wherein;

-hollow volumes is positioned at second side of bitubular shape housing and structure is logical mutually with the key groove hole of cylindrical plag, thus be directed to extraneous material mass-energy in the key groove hole by the application of force herein across and in the hollow volumes.

15, device described in claim 1, it is characterized in that, this device also comprises a cranse and one and the key conjugative component of cylindrical plag associated, and comprise the key fastener, the first compression spring, the axial pin assembly, described compression spring is to place between described key fastener and the described axial pin assembly, described axial pin assembly comprises axially extended pin, the baffle ring and the second compression spring, this spring usually keep extend axially pin in relative baffle ring retracted position, generally operationally do not mesh so extend axially pin with cranse spare.

16, locking device as claimed in claim 14, it is characterized in that, wherein also comprise a cranse and with the key conjugative component of cylindrical plag associated, and comprise a key fastener, first compression spring and the axial pin assembly, described compression spring places between described key fastener and the described axial pin assembly, described axial pin assembly comprises an axially extended pin, one baffle ring and the second compression spring, this spring is usually kept the retracted position of axial pin in relative baffle ring, does not generally operationally mesh with described cranse assembly so extend axially pin.

17, a kind of door lock assembly is characterized in that, this door lock assembly comprises:

-bitubular shape housing;

-being formed with first cylindrical plag of first key groove hole therein, this cylindrical plag is arranged on a side of bitubular shape housing;

-be arranged on second cylindrical plag of bitubular shape housing second side, this cylindrical plag has and first key groove hole, the second logical key groove hole of structure mutually, so guiding enter extraneous material mass-energy in first key groove hole by the application of force herein across and into second key groove hole, the extraneous material mass-energy that is directed in second key groove hole is passed and enters first key groove hole herein by the application of force.

As device as described in the claim 17, it is characterized in that 18, this device also comprises one and is used for the instrument that the application of force is released foreign substance, so the extraneous material mass-energy that guiding enters in first and second key groove holes is passed and arrived the outside at this by the application of force.

As device as described in the claim 18, it is characterized in that 19,, be used for the kit that the application of force releases and contain a thin and flat relatively element that its length is two times of one of first and second key groove hole length at least.

20, a kind of padlock is characterized in that, this padlock comprises:

-housing;

-being arranged on the cylindricality lock core in the housing, lock core defines one and extends through to the keyhole channel of its second end from its first end;

-yoke;

-locking mechanism, this mechanism is arranged to be operated by the cylindricality lock core makes it to select the locking of yoke to housing;

Be positioned at the device of abut cylindroid lock core second end, this device is used for forcing in foreign substance by the keyhole channel that is inserted in cylindricality key core first end with an instrument makes it to release keyhole channel.

As the padlock of claim 20, it is characterized in that 21, wherein said device allows to comprise that one is defined in the volume of abut cylindroid lock core second end in the housing, this volume is used for holding the foreign substance that the application of force is released in the keyhole channel.

22, as padlock as described in the claim 20, it is characterized in that wherein said device allows to comprise that one is defined in a hole of abut cylindroid lock core second end in the housing, gone out outside the keyhole channel by the foreign substance of the application of force allowing.

23, as padlock as described in the claim 21, it is characterized in that, wherein state device and allow to comprise that one is defined in a hole of abut cylindroid lock core second end in the housing, gone out outside the keyhole channel by the foreign substance of the application of force allowing.

As padlock as described in the claim 21, it is characterized in that 24, described padlock also comprises the yoke reinforcing element of removably installing, the described volume of foreign substance that holds is between housing and the described yoke reinforcing element of removably installing.

25, as padlock as described in the claim 20, it is characterized in that described housing comprises a relative not hard relative harder overcoat with in inside.

26, as padlock as described in the claim 21, it is characterized in that described housing comprises a relative not hard relative harder overcoat with in inside.

27, as padlock as described in the claim 22, it is characterized in that described housing comprises a relative not hard relative harder overcoat with in inside.

28, as padlock as described in the claim 23, it is characterized in that described housing comprises a relative not hard relative harder overcoat with in inside.

As padlock as described in the claim 20, it is characterized in that 29, padlock also comprises one and is arranged in abutting connection with the keyhole channel import protected apron of first end of described cylindricality lock core.

As padlock as described in the claim 18, it is characterized in that 30, padlock also comprises a keyhole channel import protected apron that is arranged in abutting connection with described cylindricality lock core first end.

As padlock as described in the claim 22, it is characterized in that 31, padlock also comprises a keyhole channel import protected apron that is arranged in abutting connection with described cylindricality lock core first end.

As padlock as described in the claim 30, it is characterized in that 32, padlock also comprises a keyhole channel import protected apron that is arranged in abutting connection with described cylindricality lock core first end.

As method as described in one of claim 1 to 3, it is characterized in that 33, described mobile step comprises and promotes foreign body and pass and arrive step outside the keyhole channel.