ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRIS..MTNORSMESMMA....MD..........
J
BDM Ver 0.1.63 (23 May 2017) - 1100000/0
3330460
EUROPEAN PATENT APPLICATION
A1
20180606
EP
16202163.8
20161205
en
en
en
20180606
201823
20180606
201823
E05B 9/08 20060101AFI20170602BHEP
E05C 3/04 20060101ALI20170602BHEP
de
VERRIEGELUNGSANORDNUNG
en
A LATCH ASSEMBLY
fr
ENSEMBLE DE VERROUILLAGE
1
Mesan Kilit Anonim Sirketi
101637107
16T-10412
Ali Pasa Köyü Mevkli Sanayi Mahallesi.37.Sok.No:7 Silivri
34570 Istanbul
TR
MERTÖZ, Mustafa
MESAN KILIT ANONIM SIRKETI Ali Pasa Köyü Mevkii Sanayi Mahallesi.37.Sok.No:7 Silivri
34570 Istanbul
TR
Sevinç, Erkan
100731001
Istanbul Patent A.S. Plaza-33, Büyükdere Cad. No: 33/16 Sisli
34381 Istanbul
TR
AL
AT
BE
BG
CH
CY
CZ
DE
DK
EE
ES
FI
FR
GB
GR
HR
HU
IE
IS
IT
LI
LT
LU
LV
MC
MK
MT
NL
NO
PL
PT
RO
RS
SE
SI
SK
SM
TR
BA
ME
MA
MD
The present invention proposes a latch assembly (10), comprising a housing (30) having a body portion (32); an actuator (20) rotatably mounted in said housing (30), having a range of rotation; and a locking tongue (50) mounted to said actuator (20). said latch assembly (10) further comprises a mounting member (40) having an at least one tooth (41) which protrudes from a hollow body (44) of the mounting member (40) facing to the housing (30); at least one protrusion (43) formed on an inner surface (45) of the mounting member (44) wherein said at least one protrusion (43) is guided on at least one guiding channel (39) formed on the outer periphery of the body portion (32) for attaching said mounting member (40) to the housing (30).

Technical Field of the Invention
The present invention relates to a latch assembly and to more specifically a quarter turn latch which provides safety and silent operation.

Background of the Invention
There exist a variety of latches, in particular quarter-turn latches, for the purpose of locking. In general, turn locks are operated by a key or tool. All offer ease of operation and are ideal for applications where regular access is required.
In the prior art, clips and segments are used for easy mounting of the latch assembly, however, said pieces does not provide desired degree of sealing above IP65. It is desired that such latches has to be specified as weather resistant according to specify standard values i.e. IP65 standard. In the prior art, segments and/or clips are used for better mounting to bring pieces together, however, which may not fulfill the requirement of the water-resistant according to IP65 standard. Instead of a segment or clips, a nut can be used, however, using the nut may lead to a mounting with an assembly tool such as screwdriver. Further, in such cases, when demounting is needed, demounting of said nut can be difficult which result to be applied extra power from a user.
A prior art publication in the technical field of the present invention may be referred to as US4671547 (A) among others, the document disclosing a latch for securely releasably clamping closures such as access panels and doors of industrial cabinets, electrical equipment enclosures and the like in closed positions. The documents further discloses that a nut is threaded onto the threaded region of the body and is tightened into engagement with the rear face of the closure plate to hold the latch in place on the closure plate.

Objects of the Invention
Primary object of the present invention is to overcome the abovementioned shortcomings of the prior art.
Another object of the present invention is to provide a latch assembly which provides an easy installation.
Another object of the present invention is to provide a latch assembly which is attached without need of a tool.
Another object of the present invention is to provide a latch assembly has weather resistant level according to IP65 standard.
Another object of the present invention is to provide a latch assembly which reduces the number of individual components and reduces the mounting effort for the latch.
Another object of the present invention is to provide a latch assembly which compensates for possible varying panel thicknesses and/or tolerances.

Summary of the Invention
The present invention proposes a latch assembly, comprising a housing having a body portion; an actuator rotatably mounted in said housing, having an upper portion and having a range of rotation; and a locking tongue mounted to said actuator. said latch assembly further comprises a mounting member having an at least one tooth which protrudes from a hollow body of the mounting member facing to the housing; at least one protrusion formed on an inner surface of the mounting member wherein said at least one protrusion is guided on at least one guiding channel formed on the outer periphery of the body portion for attaching said mounting member to the housing.
In a possible embodiment, said guiding channel is provided with first groove and a second groove formed at the ends of the guiding channel.
In a possible embodiment, said at least one protrusion is raised ball-shaped integral part of the mounting member.
In a possible embodiment, said protrusion is fitted to the second groove of the housing when said mounting member is attached to the housing.
In a possible embodiment, said locking tongue is attached to the actuator by means of a fastening member.
In a possible embodiment, wherein the fastening member is a screw, bolt, dowel, or pin.
In a possible embodiment, said locking tongue comprises an opposite extension and a longitudinal extension in order to form two longitudinal extensions in opposite directions.
In a possible embodiment, said opposite extension and the longitudinal extension is connected with an intermediate extension which extends substantially parallel to a longitudinal axis of the latch assembly.
In a possible embodiment, said guiding channel extends helically at least a portion on the outer periphery of the housing.
In a possible embodiment, said protrusion is shaped and dimensioned according to the guiding channel.
In a possible embodiment, said mounting member is configured for being supported against a door, panel or cabinet due to an established bias with at least one tooth.

Brief Description of the Figures
The figures, whose brief explanations are herewith provided, are solely intended for providing a better understanding of the present invention and are as such not intended to define the scope of protection or the context in which said scope is to be interpreted in the absence of the description.
- Figure 1 shows an exploded perspective of the latch assembly according to the present invention.
- Figure 2 shows an upper view of the latch assembly according to the present invention.
- Figure 3 shows a side view of the latch assembly according to the present invention.
- Figure 4 shows a perspective view of the locking piece and the housing of the latch assembly according to the present invention.

Reference numbers:
Referring now to the figures outlined above, the present invention proposes a latch assembly. The following numerals are assigned to different parts demonstrated in the drawings:
10.
Latch assembly
20.
Actuator
21.
Multi-sided projection
22.
Main body
23.
Lower portion
30.
Housing
32.
Body portion
37.
Upper face
38a.
First groove
38b.
Second groove
39.
Guiding channel
40.
Mounting member
41.
Tooth
43.
Protrusion
44.
Hollow body
45.
Inner surface
50.
Locking tongue
51.
Guiding hole
52.
Opposite extension
53.
Intermediate extension
54.
Longitudinal extension
60.
Fastening member
X.
longitudinal axis of the latch assembly

Detailed Description of the Invention
The exemplary embodiment shown in FIGS. 1-3 illustrates a latch assembly (10), in particular relates to a rotation latch assembly that may be assembled as either a quarter-turn latch or a half-turn latch, and as either a clockwise latch or a counterclockwise latch.
Said latch assembly (10) mainly comprises: a housing (30) having a body portion (32); an actuator (20) rotatably mounted in said housing (30), having an upper portion (21) and having a range of rotation; and a locking tongue (50) mounted to said actuator (20). Said latch assembly (10) further comprises a mounting member (40) having an at least one tooth (41) which protrudes from a hollow body (44) of the mounting member (40) facing to the housing (30); at least one protrusion (43) formed on an inner surface (45) of the mounting member (40), and wherein said at least one protrusion (43) is guided on at least one guiding channel (39) formed on the outer periphery of the body portion (32) for attaching said mounting member (40) to the housing (30). Said housing is provided with at least one guiding channel (39) to allow the housing to be secured by means of the mounting member (44) in a door leaf, cabinet or the like.
Referring to the FIG. 1, the housing (30) has a body portion (32) which is substantially cylindrically shaped. Said body portion (32) of the housing (30) is arranged to receive at least a portion of the actuator (20) and an outer face (37) of which is in a form of a frusto-conical. Said housing (30) has at least two grooves which are in communication with a guiding channel (39) wherein a ball-shaped protrusion (43) is guided for engaging a mounting member to the housing (30). Said guiding channel (39) extends helically at least a portion on the outer periphery of the housing (30).
The actuator (20) arranged in the housing (30) so as to be pivotable. The end of the actuator (20) that can be introduced into the housing (30) has a cylindrical main body (22) and a lower portion (23) which is configured as a square end, on which a locking tongue (50) can be mounted in a form fitting manner. Subsequently, the locking tongue (50) can be fixedly attached to the actuator (20) by means of the fastening member (60).
In a preferred embodiment, said at least one guiding channel (39) extends helically on the outer periphery of the body portion (32) with provided a first groove (38a) and a second groove (38b) at the ends of the said guiding channel (39). Said first and second grooves (38a, 38b) formed of as a depressed integral part of the body portion (32) from the same material as the housing (30) itself. Likewise, at least one protrusion (43) of the mounting member (40) is a raised integral part of the mounting member (40). Further, said protrusion (43) is shaped and dimensioned according to the guiding channel (39) such that a cross section of the protrusion (43) may be a square, rectangular or other polygonal shape. Referring to the FIG. 1, said latch assembly (10) mainly comprises the housing (30), the actuator (20), the mounting member (40) and the locking tongue (50). The actuator (20) is rotatably held at least in part within the housing and is configured such that it may rotate between a first and a second position. The locking tongue (50) is fixed to the actuator (20) at one end and thus rotates in relation with the actuator (20).
Said locking tongue (50) is preferably a metal part folded in order to form two longitudinal extensions in opposite directions and in two plans. Referring to the FIG. 1 and 2, said locking tongue (50) mainly comprises an opposite extension (52), an intermediate extension (53) and a longitudinal extension (54). Said opposite-side oriented extensions are connected by the slightly inclined intermediate extension (53) which extends substantially parallel to a longitudinal axis (X) of the latch assembly (10). Further, said longitudinal extension (2) is provided with a guiding hole (51) in which a fastening member (60) passes through. The locking tongue (50) is attached to the actuator (20) by means of a fastening member (60) which can be a screw, bolt, dowel, or pin.
With regard to a reliable fixing of the latch assembly (10) in a place, firstly the housing (30) is inserted into the cabinet, panel or the like and then the mounting member is fitted with the first groove (38a) leading to the second groove (38b) via the guiding channel (39). At least one sign is formed on the latch assembly (10) to direct the user how to mount and demount the latch. After placing the mounting member into the channel, it is preferably rotated 90 degrees to the right (clockwise) and the protrusion is guided to the corresponding second hole (38a) such that the attachment of the mounting member is completed. For disassembly of the latch assembly (10), firstly the mounting member (40) is rotated 90 degrees to the left (counter-clockwise) by the user.
With respect to limiting the rotation of the locking tongue (50), relative to the housing, said tongue locking (50) or the actuator (20) can be provided with a radially extending projection that engages in a slot that fixes the angle of rotation of the actuator (20) relative to the housing (30). Said actuator (20), on its front, left end, has a multi-sided projection (21) for the application of a corresponding key or wrench. The latch assembly (10) is actuated by means of a key of wrench that is applied to the multi-sided projection (21) of the actuator (20).
By means of attachment of said mounting member (40) to the housing (30), an easy installation, protection against water and protection against vibration is guaranteed independent from the latch function. Thanks to the mounting member (40) with more than one flexible tooth, preferably four teeth, it is provided that the latch is securely hold in its place. In a possible embodiment, said mounting member (40) has four tooth which are equally placed on around the hollow body (44). Said tooth (41) has a cross-section substantially in the form of "L". Further, said tooth (41) are oriented to protrude facing to the upper face (37) of the housing (30). When the protrusion (43) is brought to engage with the second groove (38), said at least one tooth (40) apply pressure against the cabinet or the panel to hold said latch assembly firmly therein. Further, in that case, only way to remove the mounting member (40) from its place is by rotating it appropriately.
1. A latch assembly (10), comprising:
a housing (30) having a body portion (32);
an actuator (20) rotatably mounted in said housing (30), having a range of rotation; and
a locking tongue (50) mounted to said actuator (20), characterized in that said latch assembly (10) further comprises
a mounting member (40) having an at least one tooth (41) which protrudes from a hollow body (44) of the mounting member (40); and
at least one protrusion (43) formed on an inner surface (45) of the hollow body (44) wherein said at least one protrusion (43) is configured to guide on at least one guiding channel (39) formed on the outer periphery of the body portion (32) for attaching said mounting member (40) to the housing (30).
2. The latch assembly (10) according to the Claim 1, wherein said guiding channel (39) is provided with first groove (38a) and a second groove (38b) formed at the ends of the guiding channel (39).
3. The latch assembly according to the Claim 1 or 2, wherein said at least one protrusion (43) is raised integral part of the mounting member (40), said protrusion (43) is formed as a ball-shaped.
4. The latch assembly (10) according to the Claim 2, wherein said protrusion (43) is fitted to the second groove (38b) of the housing (30) when said mounting member (40) is attached to the housing (30).
5. The latch assembly (10) according to any of the preceding claims, wherein said locking tongue (50) is attached to the actuator (20) by means of a fastening member (60).
6. The latch assembly (10) according to the Claim 5, wherein said fastening member (60) is a screw, bolt, dowel, or pin.
7. The latch assembly (10) according to any of the preceding claims, wherein said locking tongue (50) comprises an opposite extension (52) and a longitudinal extension (54) in order to form two longitudinal extensions in opposite directions.
8. The latch assembly (10) according to the Claim 7, wherein said opposite extension (52) and the longitudinal extension (54) is connected with an intermediate extension (53) which extends substantially parallel to a longitudinal axis (X) of the latch assembly (10).
9. The latch assembly (10) according to any of the preceding claims, wherein said guiding channel (39) extends helically at least a portion on the outer periphery of the housing (30).
10. The latch assembly (10) according to any of the preceding claims, wherein said protrusion (43) is shaped and dimensioned according to the guiding channel (39).
11. The latch assembly (10) according to any of the preceding claims, wherein said mounting member (40) is configured for being supported against a door, panel or cabinet due to an established bias with at least one tooth (41).
12. The latch assembly (10) according to any of the preceding claims, wherein the actuator (20) has a multi-sided projection (21) for actuation by means of a key or wrench.
16T-10412
EP
16202163.8
Mesan Kilit Anonim Sirketi
1
DH
20170609
E05B
E05C
FR
2828227
A1
RONIS SA [FR]
20030207
X
1,3,5-12
* page 4, line 1 - line 35; figures 1-6 *
EP
1707717
A2
EMKA BESCHLAGTEILE [DE]
20061004
X
1,3,5-8,10-12
* paragraph [0014] - paragraph [0021]; figures 1-9 *
DE
2807870
A1
WILMOT BREEDEN LTD
19780831
X
1-5,9-12
* page 7, paragraph 1 - page 9, paragraph 2; figures 1-7 *
EP
0221375
A1
NEIMAN SA [FR]
19870513
X
1,3,5,9-12
* page 4, line 26 - page 6, line 3; figures 1-4 *
US
4067090
A
SCHENK PETER
19780110
A
1,2,4,9,10
* abstract; figures 1-3 *
Koster, Michael
The Hague
20170601
FR
2828227
A1
20030207
NONE
EP
1707717
A2
20061004
DE
102005014899
A1
20061005
EP
1707717
A2
20061004
US
2006218982
A1
20061005
DE
2807870
A1
19780831
DE
2807870
A1
19780831
IT
1092792
B
19850712
JP
S5818502
B2
19830413
JP
S53104399
A
19780911
US
4139998
A
19790220
EP
0221375
A1
19870513
DE
3660431
D1
19880901
EP
0221375
A1
19870513
ES
2003833
B3
19900801
FR
2589510
A1
19870507
US
4756638
A
19880712
US
4067090
A
19780110
NONE

REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description
- US
4671547
A
[0004]