Cam lock with a closure element which can be fixed to a locking shaft at different heights

Abstract

A casement lock (1) includes an actuation lug (2); a locking shaft (3) coupled to the actuation lug (2) and having two opposite flattened axial regions (5) at a free end (4) of the locking shaft and a circumferential profiling (6) between the flattened axial regions (5); and a cage (8) supporting a closure element (7) configured to be placed with an opening (9) on the free end (4) of the locking shaft (3) and fixed to the locking shaft (3). A locking element (14) is provided on the cage (8), which, in a locking position, secures the cage (8) on the locking shaft (3) against tilting. In a release position of the locking element (14), the cage (8) can be tilted relative to the locking shaft (3) and is moveable in an axial direction along the locking shaft (3) only in a state when tilted relative to the locking shaft (3).

Claims

1. A casement lock (1), comprising: an actuation lug (2); a locking shaft (3) coupled to the actuation lug (2), the locking shaft comprising two opposite flattened axial regions (5) at least at a free end (4) of the locking shaft and a profiling (6) in a circumferential direction between the flattened axial regions (5); and a cage (8) supporting a closure element (7) configured to be placed with an opening (9) on the free end (4) of the locking shaft (3) and fixed to the locking shaft (3), wherein a locking element (14) is provided on the cage (8), wherein the locking element in a locking position secures the cage (8) on the locking shaft (3) against tilting, wherein in a release position of the locking element (14), the cage (8) is tiltable relative to the locking shaft (3), and wherein the cage (8) is moveable in an axial direction along the locking shaft (3) only in a state when tilted relative to the locking shaft (3).

2. The casement lock (1) according to claim 1, wherein the opening (9) of the cage (8) comprises two holding sections (10) arranged axially offset with respect to one another in the longitudinal direction of the locking shaft (3), wherein each holding section comprises a contact region (11) for the locking shaft on a surface facing the opening (9) and a cutout (12) on a side lying opposite the contact region (11), wherein at least one of the contact regions (11) comprises a negative profiling (13) corresponding to the profiling (6) of the locking shaft (3), and wherein the contact regions (11) and cutouts (12) formed on the two holding sections (10) are in each case arranged opposite one another and with an axial offset with respect to one another, so that the cage (8) in a tilted state, in which the locking shaft (3) engages in the cutouts (12), is displaceable along the locking shaft (3) and, in an aligned position, enters with the negative profiling (13) of the at least one holding section (10) into engagement with the profiling (6) of the locking shaft (3), thereby preventing an axial displacement of the cage (8).

3. The casement lock (1) according to claim 2, wherein the locking shaft (3) comprises in each case a profiling (6) in the circumferential direction between the two flattened axial regions (5), and wherein in each case a negative profiling (13) corresponding to the profiling (6) of the locking shaft (3) is formed on the contact regions (11) of the two holding sections (10).

4. The casement lock (1) according to claim 2, wherein the cutout (12) of the holding section (10) facing the actuation lug (2) is located on a side from which the closure element (7) extends away from the cage (8).

5. The casement lock (1) according to claim 1, wherein the locking element (14) is a pin (15), wherein the pin (15) is insertable into the cage (8) in the locking position and wherein the pin (15), in the release position, is at least partially pulled out of the cage (8).

6. The casement lock (1) according to claim 5, wherein the pin (15) in the locking position projects with one end (16) over the cage (8), wherein a stop (17) is formed on the projecting end (16) of the pin (15), wherein the stop engages over the cage (8) in the locking position.

7. The casement lock (1) according to claim 6, wherein the end (16) of the pin (15) comprising the stop (17) is resiliently deflectable, so that the pin (15) is moveable into the release position after the end (16) has been deflected.

8. The casement lock (1) according to claim 5, wherein the pin (15) comprises a solid profile section (18) and a recess section (19) comprising a recess (20), wherein the profile section (18) and the recess section (19) are arranged on the pin (15) in such a way that the solid profile section (18) in the locking position prevents a deflection of the cage (8) and that in the release position the locking shaft (3) is arranged in the recess (20) of the recess section (19), so that the cage (8) can be deflected relative to the locking shaft (3).

9. The casement lock (1) according to claim 8, wherein the recess (20) comprises a contact surface which is angled relative to the axial direction, wherein the locking shaft (3) is tiltable onto the contact surface over the entire area in the release position.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention and the technical field are explained in the following by way of example with the aid of the figures. In the figures, schematically:

(2) FIG. 1: shows a partial exploded view of a casement lock,

(3) FIG. 2: shows the casement lock in a locking position of a locking element,

(4) FIG. 3: shows the casement lock in a release position of the locking element and with a tilted closure element, and

(5) FIG. 4: shows the casement lock in the release position and with an aligned closure element.

DETAILED DESCRIPTION OF SPECIFIC EMBODIMENTS

(6) The Casement lock 1 represented in the figures comprises an actuation lug 2, which is rotatably mounted in a housing. The actuation lug 2 is coupled with a locking shaft 3, which is rotated upon rotation of the actuation lug 2. When the casement lock 1 is constituted as a rotary clamping lock, the locking shaft 3 is moved axially at least partially during a rotation of the actuation lug 2.

(7) The locking shaft 3 comprises two opposite flattened axial regions 5 and profilings 6 arranged in the circumferential direction between the flattened axial regions 5. A cage 8 with a closure element 7 formed in one piece thereon can be pushed onto a free end 4 of the locking shaft 7.

(8) When the cage 8 is pushed onto the locking shaft 3, the locking shaft 3 engages in an opening 9 formed in the cage 8. The opening 9 is shaped corresponding to the flattened axial regions 5 of the locking shaft 3, such that the cage is arranged on the locking shaft 3 in a non-rotatable manner. The cage 8 comprises a holding section 10, which in the assembled state faces the actuation lug 2, and a holding section 10, which in the assembled state faces the free end 4 of the locking shaft 3. The holding sections 10 each comprise a contact region 11 with a negative profile 13 corresponding to the profiling 6 of the locking shaft 3, and a cutout 12. The contact regions 11 and the cutouts 12 are each arranged opposite one another and with an axial offset relative to one another. This makes it possible for the cage 8 to be tiltable relative to locking shaft 3 (see FIG. 3), wherein in the tilted state the locking shaft 3 is arranged in both cutouts 12. In the aligned position, on the other hand, the profiling 6 of the locking shaft 3 is engaged with the negative profiling 13 of the contact regions 11 of the holding sections 10. The cage 8 cannot be displaced axially along the locking shaft 3 in this aligned position.

(9) In order to prevent unintentional tilting of the cage 8 with respect to the locking shaft 3, a locking element 14 constituted as a pin 15 is provided, which can be inserted into the cage 8 through recesses in cage 8. The pin 15 comprises a solid profile section 18 and a recess section 19 with a recess 20. The pin 15 comprises a stop 17 at its end 16.

(10) In the locking position represented in FIG. 2, the pin 15 is completely inserted into the cage 8 and projects with its end 16 over the cage 8, wherein the stop 17 engages the over cage 8. The stop 17 thus prevents the pin 15 from being able to be moved unintentionally to the cage 8. In the locking position, the pin 15 is arranged with its full profile section 18 in the cutout 12 of the holding section 10 facing the actuation lug 2, so that the cage 8 cannot be tilted relative to the locking shaft 3.

(11) In order to bring the pin 15 into a release position, the stop 17 at the end 16 of the pin 15 has to be deflected, so that the pin 15 can be moved through the recesses in the cage 8. The release position is reached when the pin 15 is arranged with the recess 20 in the cutout 12 of the holding section 10 facing the actuation lug. In the release position, the cage 8 can be tilted relative to the locking shaft 3, so that the locking shaft 3 engages in the recess 20 on the pin 15. When the cage 8 is tilted, the cage 8 can be displaced axially relative to the locking shaft 3 (see FIG. 3).

(12) Once the cage 8 has reached a desired axial position on the locking shaft 3, the cage 8 is realigned, wherein the negative profiling 13 of the contact regions 11 engages with the profiling 6 of the locking shaft 3 (see FIG. 4). In order then to secure the cage 8 against tilting, the pin 15 is completely inserted into the cage 8.

(13) The specification incorporates by reference the disclosure PCT/EP2017/059326, filed Apr. 20, 2017 and DE 10 2016 107 467.5, filed Apr. 22, 2016.

(14) The present invention is, of course, in no way restricted to the specific disclosure of the specification and drawings, but also encompasses any modifications within the scope of the appended claims.

LIST OF REFERENCE NUMBERS

(15) 1 casement lock 2 actuation lug 3 locking shaft 4 free end 5 flattened axial region 6 profiling 7 closure element 8 cage 9 opening 10 holding section 11 contact region 12 cutout 13 negative profiling 14 locking element 15 pin 16 end 17 stop 18 full profile section 19 recess section 20 recess