FI101240B - Door lock with diagonal shaft - Google Patents

Description

101240

DOOR LOCK WITH WINDOW AXLE - DÖRRLAS MED EN FALLKOLV

The invention relates to a door lock according to the preamble of claim 1.

In door locks with an oblique axis, where the oblique roller is moved to the lock body to open the door by means of a key at least from outside the door, the problem is the forces due to the seals of the door 5. The door seals press the inclined roller against the edges of the bolt opening in the door frame's counter plate, which makes it more difficult and requires more force to move the inclined roller to the lock frame due to the increased friction. To overcome these frictional forces, the door usually must first be pressed or pulled against the opening direction of the door before the key or knob can be turned to open the door. In practice, the key often also acts as a puller 10. Thus, weaker people, such as children, the elderly, and the disabled, often have difficulty opening such a door.

The object of the invention is to provide a new door lock solution which eliminates the above-mentioned problems and which is simple and reliable in construction and easy to use.

The objects of the invention are achieved as set out in claim 1 and the other claims. According to the invention, the transmission from the first weight cam means to the oblique roller takes place via a transmission member movably supported on the lock body. In addition, the '· *' arrangement comprises a movable coupling member which, when the inclined roller is in the extended position, holds said transmission member in a position in which the transmission connection 20 from the first weight cam means to the inclined roller is disconnected. The invention is thus based on the idea that the transmission connection to the inclined roller can be provided using a separate transmission unit only from the first operating shaft, whereby it is not possible to move the inclined roller directly with the key or from inside the door, alternatively with a torsion knob, but only to affect the inclined roller. In this case, the door can be. . 25 equipped with buttons on both sides and open only with buttons. Since the torque provided by the button: is substantially higher than that provided by the key or the knob, the force required to pull the diagonal roller into the lock body and thus to open the door is correspondingly lower. In this case, there is also no risk of possible damage due to the torque of the key.

2 101240 In practice, the coupling piece is spring-loaded towards its detachable position of said transmission connection. Further, the displacement of the coupling piece to a position in which it allows the transmission of power from the first axis of action to the inclined roller is tracked by said second push cam means. In this way, achieving the transmission always requires active 5 actions and the door cannot be accidentally left to be opened with just a button.

In a preferred embodiment of the invention, the coupling piece is plate-shaped and comprises a curved guide surface for said second weight cam means. In addition, the guide surface has a small recess or the like for holding the weight cam means in place in the transmission engaging position. In this way, the door can also be easily opened with one hand.

In practice, an advantageous solution is obtained if the transmission from the first weight cam means to the inclined roller takes place via a transmission member movably supported on the lock body. In this case, the coupling piece can be provided with a control member arranged to move the transmission piece in a direction away from the first operating shaft. . to the detachable position of the transmission with the inclined roller in the extended position.

15 To ensure operation after engaging the transmission, the transmission is: spring-loaded towards the transmission engaging position. However, the spring force acting on the transmission element is chosen to be smaller than the spring force acting on the coupling element, so that the basic idea of the invention of influencing the transmission is realized.

The coupling piece can advantageously also be arranged to provide a rear locking of the diagonal roller. 20 in its position in which it is at the same time arranged to disengage the transmission from the first. *: · From the weight cam means by means of a transmission piece to the inclined roller.

• · In a practical embodiment, in order to provide a rear locking of the inclined roller, the coupling piece • · comprises a substantially L-shaped guide groove arranged in cooperation with a guide pin arranged on the inclined roller. An advantageous and simple solution 25 is obtained if the transmission from said transmission body to the inclined roller is arranged by means of said guide pin.

3 101240

The invention will now be described in more detail with reference to the accompanying drawing, in which Fig. 1 shows an embodiment of a door lock according to the invention seen from the side and the lock body opened in a position with the diagonal extended and rear-locked, S-Fig. 2 shows the door lock of 3 shows the door lock of Fig. 1 in a position in which the diagonal bar is pulled into the lock body.

In the drawing 1 means a lock body of a door lock to be mounted on a door or the like, in which 10 there is a chest plate 2 and a diagonal tent 3 which can be moved back and forth from the opening of the chest plate to the locking position and into the release position. The diagonal bar 3 is loaded by its spring 4 towards its extended position and is provided with a guide pin 5.

The lock body 1 is provided with a first operating shaft 6 on which a weight cam 8 is mounted, which can be rotated against the force of the return spring 9 by means of a button or the like not shown. A button is mounted on the operating shaft 6 both outside and inside the door.

• ·

In addition, the lock body 1 is provided with a second operating shaft 7, on which two weight pins 10a and 10b, which can be rotated independently from different sides of the door, are mounted, which are loaded by a spring 20 12 to the basic position shown in Figs. The weight cams 10a or 10b are:. further provided with control members 1a and 11b which together prevent the rotation of the weight cam «·, ·: · beyond the operating position shown in Fig. 2, in which the weight cam is located transversely to the inclined axis. ‘* 3 relation. The second actuating shaft 7 can be fitted with key-operated actuators, such as a cylinder lock, on the outside of the door and either key-operated actuators or a rotary knob or the like on the inside of the door.

According to the invention, the transmission to the diagonal roller 3 can be provided only from the first operating shaft 6. For this purpose, the lock body 1 has a transmission body 13 with a pin 4 101240 14 cooperating with the push cam 8 when opening the door and a guide groove 16 cooperating with the inclined roller guide pin 5. . The required lever effect is obtained through the projection 13a of the transmission. The transmission body 13 is loaded by means of a spring 15 towards its position enabling the transmission shown in Fig. 2.

The lock body 1 further has a coupling piece 18 with a guide groove 19 cooperating with the guide pin 5 of the inclined roller 3, having branches 19a and 19b. In the case of Fig. 1, where the oblique roller 3 is in its extended, locking position with the door closed, the guide pin 5 is located in a branch 19a of the guide groove extending transversely to the oblique roller 3 in the direction of the breast plate 2.

The coupling piece 18 is acted upon by a spring 21 which presses it into the position shown in Fig. 1 so that the guide pin 5 is located at the bottom of the guide groove branch 19a. In this position, the diagonal roller 3 is locked at the rear, since the side wall of the branch 19a prevents the inclined roller 3 from being moved inside the lock body 1 by means of a guide pin 5. In addition, since the force of the spring 21 is selected to be greater than the force of the spring 15, the protrusion 20 in the coupling member 18 has moved the transmission member 13 to a position 13 by means of the abutment surface 17 of the transmission member 15. the guide pin 5 of the inclined roller 3 is located at the bottom of the guide groove 16. In this case, the pin 14 of the transmission piece '·: · 13 is at the same time moved beyond the reach of the weight cam 8, whereby the transmission:; from the first operating shaft 6 to the inclined roller 3 is cut off.

To open the door and retract the inclined roller 3, either of the push cams 10a or 10b 20 must first be turned from the position of Fig. 1 to the position of Fig. 2 with a key or a knob. When the weight cam is rotated, it pushes the coupling piece 18 downwards in the figure by means of the guide surface 22, so that the end of the weight cam reaches the recess 22a which holds the weight cam in this position, regardless of whether the key is turned back and removed completely.

• ·

In the situation of Fig. 2, as a result of the rotation of the weight cam 10a, the pin 14 of the transmission piece 13 • 25 has again moved into the area of influence of the weight cam 8, so the diagonal bar 3 At the initial stage of the transfer movement · · · «, the guide pin 5 of the inclined roller 3 strikes an oblique part 19c in the guide groove 19 of the coupling piece 18, as a result of which the guide pin 5

Claims (10)

A door lock, belonging to a reading body (1) with a piston (3), a first function shaft (6), which is mounted by a pressure or correspondingly used first rowing device (8), by means of which the piston (3) is displaceable from the reading body (1) from a projected position to a retracted position, and a second function shaft (7), which is mounted at least from the other side of the reading body (1) by means of key operated functional devices useful other rowing means (10a, 10b), characterized by power transmission from the first rowing means (8) to the fall piston (3) is effected via a power transfer piece slidably supported by the reading body ... (13), and the device comprises a slidable coupling piece (18), which includes the fall piston. 3) is in the extended position, the said power transmission piece (13) pours into a position where the power transfer contact from the first rowing means (8) to the fall piston (3) is interrupted. »·« «*«. . Door lock according to claim 1, characterized in that the coupling piece (18) comprises a control member (20) arranged to displace said power transmission piece (13) in a direction away from the first functional shaft ( 6) to the alternating position of said power transmission. 101240 s Door lock according to claim 1 or 2, characterized in that the coupling piece (18) is spring-loaded against its abrupt position of said power transmission. Door lock according to any of the preceding claims, characterized in that said power transmission contact is effected by displacing the coupling piece (18) by said second rudder means (10a, 10b) to a releasing position (13). Door lock according to claim 4, characterized in that the coupling piece (18) is disc-shaped and comprises an arched guide surface (22) for said second rowing device (10a, 10b). Door lock according to claim 5, characterized in that the guide surface (22) has a small hollow 10 (22a) or equivalent for retaining the rudder (10a, 10b) in a power transmission coupling position. I I Door lock according to any of the preceding claims, characterized in that the power transmission t *,, the piece (13) is spring loaded against the position of the power transmission and that the spring force (15) acting against the power transmission piece (13) is selected less than the spring force (15). The spring force (21) acting on the coupling piece (18). Door lock according to claim 7, characterized in that the coupling piece (18) is arranged to enable rear reading of the piston (3) in a position where it is simultaneously arranged to release the power transmission from the first rowing means (8) to the piston (3) via a power piston. - .. the guide piece (13). »·» · · • · • i t * · 20 Door lock according to Claim 8, characterized in that, in order to achieve the fall piston (3) ► ♦ rear reading, the coupling piece (18) comprises a substantially L-shaped guide bar (19) arranged for cooperation with a guide pin (5) arranged in the piston (3). ). Door lock according to claim 9, characterized in that the power transmission from said power transmission piece (13) to the fall piston (3) is arranged via said control pin (5).