GB2551976A

GB2551976A - Electric lock device

Info

Publication number: GB2551976A
Application number: GB1611343.3A
Authority: GB
Inventors: Chung Chang Chih
Original assignee: Gianni Industries Inc
Current assignee: Gianni Industries Inc
Priority date: 2016-06-30
Filing date: 2016-06-30
Publication date: 2018-01-10
Also published as: GB201611343D0

Abstract

A lock device includes a housing engaged in a door member, a latch bolt 3 slidably engaged in the housing and extendible out of the housing, a guard piece 5 slidably engaged in the housing and extendible out of the housing for guarding and protecting the latch bolt from being damaged and for preventing the electric door lock device from being opened inadvertently. A solenoid actuating device 6 actuates the latch bolt 3. The sliding guard is preferably spring biased to extend from the housing for abutment with doorframe or striker. preferably solenoid is coupled to latchbolt via link 73 and rotatable follower 70, the follower having first leg 72 coupled to link 73, a second leg 74 located in a recess of the latch bolt and a third leg 75 which may engage with a protruding seat 55 on the guard piece 5. A locking cylinder (21) may be included moving an arm with a hook (78, fig.4) engaging third leg 75 for rotating the follower. Preferably the latch bolt is slidable within a casing (30) with guide slots (32).

Description

(71) Applicant(s):

Gianni Industries Inc.

(Incorporated in Taiwan)

Chonsin Road, Tuchern, Taipei 23678, Taiwan (56) Documents Cited:

EP 1870545 A2 WO 2001/044604 A1 US 4677834 A

WO 2014/012881 A1 US 9262875 A US 4593543 A (72) Inventor(s):

Chih Chung Chang (58) Field of Search: INT CL E05B

Other: Online: EPODOC WPI (74) Agent and/or Address for Service:

Alpha & Omega

Chine Croft, East Hill, OTTERY ST. MARY, Devon, EX11 1PJ, United Kingdom (54) Title of the Invention: Electric lock device

Abstract Title: An electrically operable lock with a sliding safety guard (57) A lock device includes a housing engaged in a door member, a latch bolt 3 slidably engaged in the housing and extendible out of the housing, a guard piece 5 slidably engaged in the housing and extendible out of the housing for guarding and protecting the latch bolt from being damaged and for preventing the electric door lock device from being opened inadvertently. A solenoid actuating device 6 actuates the latch bolt 3. The sliding guard is preferably spring biased to extend from the housing for abutment with doorframe or striker, preferably solenoid is coupled to latchbolt via link 73 and rotatable follower 70, the follower having first leg 72 coupled to link 73, a second leg 74 located in a recess of the latch bolt and a third leg 75 which may engage with a protruding seat 55 on the guard piece 5. A locking cylinder (21) may be included moving an arm with a hook (78, fig.4) engaging third leg 75 for rotating the follower. Preferably the latch bolt is slidable within a casing (30) with guide slots (32).

FIG. 7

1/13

FIG. 1

2/13

FIG. 2

3/13

FIG. 3

4/13

FIG. 4

5/13

FIG. 5

6/13

FIG. 6

7/13

A__	-Θ-'
control module

power

FIG. 7

FIG. 8

8/13

: __	-Θ-
control - module

power

FIG. 9

FIG. 10

9/13

FIG. 11

10/13

FIG. 12

11/13

FIG. 13

12/13

FIG. 14

13/13

FIG. 15

ELECTRIC LOCK DEVICE

The invention relates to a door lock device, and more particularly to an electric door lock device including a safety structure or mechanism for preventing the electric door lock device from being opened inadvertently.an electric lock device.

Various kinds of typical electromagnetic lock devices, such as electric drop-bolts, cathode locks or the like have been developed and provided for conducting or operating or locking and unlocking various door devices, and normally comprise a core or deadbolt actuatable or movable or operable with a coil or an electromagnetic mechanism to actuate the deadbolt or tongue and to lock or unlock a door or window or the like.

For example, U.S. Patent No. 5,531,086 to Bryant, U.S. Patent No. 5,934,720 to Karalius, U.S. Patent No. 6,302,455 to Huang, U.S.

Patent No. 8,291,733 to Chiou et al., U.S. Patent No. 8,365,561 to Chang, and U.S. Patent No. 8,490,445 to Chiou et al. disclose several of the typical electromagnetic deadbolt lock devices each also comprising a deadbolt or tongue indirectly coupled to an electromagnetic mechanism with a connecting rod for allowing the deadbolt or tongue to be actuated or operated by the electromagnetic mechanism.

However, after the door panel is locked with or by the typical electromagnetic deadbolt lock devices, the deadbolt or tongue may be easily disengaged or unlocked from the keeper of the doorjamb or from the door frame or the door panel by the unauthorized persons or the like.

It is accordingly an object of the present invention to provide an electric lock device including a safety structure or mechanism for preventing the electric door lock device from being opened inadvertently.

SUMMARY OF THE INVENTION

According to the invention there is provided an electric lock device for a door device, the door device including a door member and a door element, the lock device comprising:a housing engaged into the door member, and including a chamber formed in the housing, a deadbolt device including a latch bolt slidably engaged in the housing and extendible out of the housing for engaging with the door element and for selectively locking the door member and the door element together, a safety guard including a guard piece slidably engaged in the housing and extendible out of the housing for selectively engaging with the door element and for guarding and protecting the latch bolt from being damaged and for preventing the electric door lock device from being opened inadvertently, a solenoid actuating device engaged in the housing, and a transmitting device connected between the latch bolt of the deadbolt device and the solenoid actuating device.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial perspective view of an electric lock device for a door device;

FIG. 2 is a partial perspective view of the electric lock device as seen from one direction;

FIG. 3 is another partial perspective view of the electric lock device as seen from the other direction;

FIG. 4 is a partial exploded view of the electric lock device; FIG. 5 is a partial plan schematic view illustrating the unlocking operation of the electric lock device;

FIG. 6 is another partial plan schematic view illustrating the locking operation of the electric lock device;

FIG. 7 is another partial plan schematic view similar to FIG. 5, illustrating the locking operation of the electric lock device;

FIGS. 8, 9, 10 are other partial plan schematic views similar to

FIGS. 5 and 7, illustrating the operation of the electric lock device;

FIGS. 11, 12, 13, 14 are other partial perspective views similar to FIG. 1, illustrating the operation of the electric lock device; and FIG. 15 is a further partial plan schematic view similar to FIGS and 7-10, illustrating the operation of the electric lock device.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to the drawings, and initially to FIGS. 1 and 6, an electric lock device 1 is illustrated and developed and provided for attaching or mounting or securing to a door member 90 of a door device 9, such as a door frame, door panel 90 or the like, for locking and unlocking the door device 9, and the door panel or door member of the door device 9 is worked in cooperate with a door element of the door device 9, such as a door panel, door frame 91 or the like. The door frame or door element 91 of the door device 9 includes a lock opening or lock hole 92 formed therein (FIG. 6) and located and faced or directed toward the door panel or door member 90, and a guide plate 93 is attached or mounted or secured to the door element 91 (FIGS. 1, 6, and 11-14), and includes an engaging hole 94 formed therein and communicating with the lock hole 92 of the door element 91, and includes a tilted or inclined guide ear 95 formed or provided thereon.

As shown in FIGS. 1-6, the electric lock device 1 comprises a housing 10 disposed or engaged into the door member 90, and including a chamber 11 formed therein for receiving various parts or members or elements or the like therein, and including a cover 12 secured onto of the housing 10, such as secured onto the front portion of the housing 10 with such as latches or fasteners 13 for enclosing the chamber 11 of the housing 10. The housing 10 includes one side wall member 14 having an opening 15 and a channel 16 formed therein, such as formed in the middle or intermediate portion 17 thereof, and includes a guide rail 18 formed therein, such as formed in the middle or intermediate portion 17 thereof also and communicating with the chamber 11 of the housing

10. The housing 10 includes a key hole 19 formed therein, such as formed in the upper portion 20 of the cover 12 and/or of the housing 10 for receiving or engaging with a lock member 21 which is attached to the housing 10 and engageable within or extendible out of the housing 10 for engaging with a key member 22 (FIGS.

12-14).

For example, the lock member 21 is received or engaged in the upper portion 20 of the housing 10, and includes an actuating member 23 (FIGS. 4, 15) pivotally or rotatably received or engaged within the chamber 11 of the housing 10 for being actuated or operated or rotated relative to the housing 10 with or by the key member 22. The actuating member 23 may include a protrusion 24 extended therefrom (FIGS. 2-3, 15). A deadbolt or latchbolt device 3 includes a receptacle or casing 30 (FIG. 4) attached or mounted or secured in the middle or intermediate portion 17 of the chamber 11 or of the housing 10, and having a bore or compartment 31 formed in the casing 30 for slidably receiving or engaging with a latch bolt 33 therein which is extendible out through the opening 15 of the housing 10, and the casing 30 includes a guide groove 32 formed therein and communicating with the compartment 31 of the casing 30.

It is preferable, but not necessary that the latch bolt 33 includes a guide pin 34 attached thereto and slidably received or engaged in the guide groove 32 of the casing 30 and for guiding and limiting the latch bolt 33 to slide or move relative to the casing 30 and for preventing the latch bolt 33 from being disengaged or separated from the casing 30 and the housing 10 inadvertently. The latch bolt 33 includes a depression or recess 35 formed therein, such as formed in the inner portion thereof for forming or defining a tail or head or stop 36 thereon. A panel or board 40 is attached or mounted or secured to the housing 10, such as secured to the one side wall member 14 of the housing 10 and secured and engaged onto the door member 90 (FIGS. 1, 6), one or more latches or fasteners 41 may further be provided and attached to the board 40 and the housing 10 and engaged with the lock member 21 for solidly and stably mounting or securing the lock member 21 in the housing 10. The latch bolt 33 is extendible out through an aperture 42 (FIG. 4) of the board 40.

A safety guard 5 includes a guard body or piece 50 slidably received or engaged in the channel 16 of the housing 10 and extendible out through a slit 43 (FIG. 4) of the board 40, a projection or key 51 extended from the guard piece 50 and slidably received or engaged in the guide rail 18 of the housing 10 for further solidly and stably guiding the guard piece 50 to slide and move relative to the housing 10, and another key or guide projection 52 also extended from the guard piece 50 and slidably received or engaged in the guide slot 25 of the cover 12 and/or of the housing 10 for further solidly and stably guiding the guard piece 50 to slide and move relative to the housing 10, one or more spring biasing means or members 53 may be attached to or engaged between the guard piece 50 and the housing 10 for biasing or forcing the guard piece 50 to move out through the channel 16 of the housing 10 and the slit 43 (FIG. 4) of the board 40, for biasing or forcing the guard piece 50 to contact or engage with the guide plate 93 (FIG. 6).

A solenoid actuating device 6 includes a coil or base 60 disposed or engaged in the middle or intermediate portion 17 of the chamber 11 or of the housing 10, and disposed or located below the guard piece 50, and includes a core or shaft 61 slidably received or engaged therein and extendible out of the base 60, a pivot pole 62 attached or mounted or secured to the shaft 61 and extended out of the shaft 61, and another spring biasing means or member 63 engaged onto the shaft 61 for biasing or forcing the shaft 61 to move and to extend out of the base 60 selectively. A transmitting mechanism or device 7 is pivotally connected or coupled between the latch bolt 33 of the deadbolt device 3 and the solenoid actuating device 6, and includes a rotary actuating element or follower 70 pivotally or rotatably received or engaged in the chamber 11 of the housing 10 with a pivot axle 71, and the follower 70 includes a first limb or leg 72 pivotally connected or coupled to the shaft 61 with a lever or link 73 and the pivot pole 62 for allowing the follower 70 to be pivoted or rotated relative to the housing 10 with the solenoid actuating device 6.

For example, as shown in FIG. 10, the shaft 61 may be selectively moved or retracted toward or into the base 60 when the coil or base 60 of the solenoid actuating device 6 is actuated or energized, in order to pivot or rotate the follower 70 relative to the housing 10 counterclockwise. The follower 70 includes a second limb or leg 74 extended therefrom and slidably received or engaged in the recess 35 of the latch bolt 33 for selectively engaging with the latch bolt 33 (FIGS. 5, 7) in order to force and move the latch bolt

33 out of the housing 10, or for selectively engaging with the stop of the latch bolt 33 (FIGS. 10, 15) in order to force and move the latch bolt 33 into of the housing 10. The follower 70 includes a third limb or leg 75 extended therefrom, and the guard piece 50 includes a recess or depression 54 formed therein (FIG 4) for slidably receiving or engaging with the link 73 (FIG 2), and includes a projection or seat 55 extended therefrom (FIGS. 2, 4, 5) for selectively contacting or engaging with the third leg 75 of the follower 70.

In operation, as shown in FIGS. 1 and 5, when the guard piece

50 is biased or forced to move out through the channel 16 of the housing 10 and the slit 43 of the board 40 with the spring biasing members 53, the follower 70 may be freely pivoted or rotated relative to the housing 10, and the second leg 74 of the follower 70 is slidably received or engaged in the recess 35 of the latch bolt 33 for allowing the latch bolt 33 to be freely moved into and out of the housing 10. As shown in FIGS. 6 and 7, when the guard piece 50 is forced to move into the housing 10 with such as the guide plate 93 of the door element 91 (FIG. 6), the guard piece 50 may force and move the link 73 to pivot or rotate the follower 70 relative to the housing 10 clockwise and may force and move the second leg 74 of the follower 70 to selectively engage with the latch bolt 33 (FIG. 7) in order to force and move the latch bolt 33 out of the housing 10 and into the lock hole 92 of the door element 91 (FIG. 6) and so as to lock the door element 91 and the door member 90 together.

It is preferable that the third leg 75 of the follower 70 may be selectively contacted or engaged with the seat 55 of the guard piece

50 for anchoring or retaining or positioning the guard piece 50 to the housing 10 and for preventing the guard piece 50 from being moved relative to the housing 10. As shown in FIG. 6, the guard piece 50 may be provided for guarding and protecting the latch bolt 33 and may prevent the latch bolt 33 from being damaged or pried by the other objects and by the unauthorized persons or the like. As shown in FIGS. 8 and 9, an electric reservoir or power 64 and a processor device or control module 65 may further be provided and connected or coupled to the coil or base 60 of the solenoid actuating device 6 for actuating or controlling or operating the coil or base 60 to move or retract the shaft 61 into the base 60. As shown in FIG. 10, when the solenoid actuating device 6 is actuated or energized to move or retract the shaft 61 into the base 60, the follower 70 may be pivoted or rotated relative to the housing 10 counterclockwise, and the second leg 74 of the follower 70 may be forced and moved to selectively engage with the stop 36 of the latch bolt 33 in order to force and move the latch bolt 33 away from the door element 91, and so as to unlock the door member 90 from the door element 91.

As shown in FIGS. 2-4, an actuating element 76 is slidably received or engaged in the upper portion 20 of the chamber 11 or of the housing 10, and contacted or engaged with the protrusion 24 of the actuating member 23 for allowing the actuating element 76 to be moved up and down relative to the housing 10 with the actuating member 23 of the lock member 21. The actuating element 76 includes an oblong hole 77 formed therein for slidably receiving or engaging with the fastener 41 which may guide and limit the actuating element 76 to slide or move relative to the housing 10, and further includes a hook or pawl 78 contacted or engaged with the third leg 75 of the follower 70 (FIG. 15) for allowing the follower 70 to be selectively pivoted or rotated relative to the housing 10 counterclockwise with the lock member 21 and the actuating element 76, and for allowing the latch bolt 33 to be moved away from the door element 91 with the actuating element 76 and the lock member 21 selectively.

Accordingly, the electric lock device includes a safety structure or mechanism for preventing the electric door lock device from being opened inadvertently.

Claims

CLAIMS:1. A lock device for a door device, the door device including a door member and a door element, the lock device comprising:

a housing engaged into the door member, and including a 5 chamber formed in the housing, a deadbolt device including a latch bolt slidably engaged in the housing and extendible out of the housing for engaging with the door element and for selectively locking the door member and the door element together,

10 a safety guard including a guard piece slidably engaged in the housing and extendible out of the housing for selectively engaging with the door element and for guarding and protecting the latch bolt from being damaged, a solenoid actuating device engaged in the housing, and

15 a transmitting device connected between the latch bolt of the deadbolt device and the solenoid actuating device.
2. A lock device as claimed in claim 1, wherein the deadbolt device includes a casing engaged in the housing, and having a compartment formed in the casing for slidably engaging with the

20 latch bolt.
3. A lock device as claimed in claim 2, wherein the casing includes a guide groove formed therein and communicating with the compartment of the casing, and the latch bolt includes a guide pin attached to the latch bolt and slidably engaged in the guide groove

25 of the casing and for guiding and limiting the latch bolt to move relative to the casing.
4. A lock device as claimed in claim 1, wherein the latch bolt includes a recess formed therein for defining a stop thereon.

5. A lock device as claimed in claim 4, wherein the transmitting device includes a follower rotatably engaged in the housing with a pivot axle, and the follower includes a first leg pivotally connected
5 to the solenoid actuating device, and includes a second leg extended therefrom and slidably engaged in the recess of the latch bolt for selectively engaging with the latch bolt in order to force and move the latch bolt out of the housing, and for selectively engaging with the stop of the latch bolt in order to force and move the latch bolt

10 into of the housing.
6. A lock device as claimed in claim 5, wherein the transmitting device includes a link connected between the first leg of the follower and the solenoid actuating device.
7. A lock device as claimed in claim 6, wherein the solenoid

15 actuating device includes a base engaged in the housing, and a shaft slidably engaged in the base and extendible out of the base, the shaft is pivotally connected to the link with a pivot pole, and a spring biasing member is engaged with the shaft for biasing and forcing the shaft to move and to extend out of the base selectively.

20
8. A lock device as claimed in claim 5, wherein the housing includes a lock member attached to the housing for engaging with a key member, and an actuating element coupled between the lock member and the follower.
9. A lock device as claimed in claim 8, wherein the follower

25 includes a third leg extended therefrom, and the actuating element includes a pawl engaged with the third leg of the follower.
10. A lock device as claimed in claim 9, wherein the guard piece includes a seat extended therefrom for selectively engaging with the third leg of the follower.
11. A lock device as claimed in claim 1, wherein the housing includes a guide rail formed therein, and the guard piece includes a

5 key extended from the guard piece and slidably engaged in the guide rail of the housing for guiding the guard piece to slide and move relative to the housing.
12. A lock device as claimed in claim 1, wherein the housing includes a cover secured onto of the housing, and the cover includes

10 a guide slot formed therein, and the guard piece includes a guide projection extended from the guard piece and slidably engaged in the guide slot of the cover for guiding the guard piece to slide and move relative to the housing.
13. A lock device substantially as herein described with

15 reference to FIGS. 1-15 of the accompanying drawings.

Intellectual

Property

Office

Application No: GB1611343.3 Examiner: Ben Munns