DE1274462B - Rotary latch lock for a sliding door - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN 4057 »^ PATENTAMT Int. Cl .:

E05b

EDITORIAL

German class: 68 a-91

Number: 1274 462

File number: P 12 74 462.6-15 (V 22368)

Filing date: April 17, 1962

Open date: August 1, 1968

The invention relates to a rotary latch lock for a sliding door lying in the plane of the wall in the closed state, in particular for motor vehicles, their rear and / or front end towards the end of the closing movement by the rotary latch lock is drawn into the plane of the wall and held in it.

In a known rotary latch lock of this type, a rotary latch designed as an angle lever is used arranged pivotably on the sliding door along the door wall. During the locking process while at the same time tensioning a spring by the angle lever of the rotary latch via a special device, the door is slightly transverse from the wall of the car moved away and pushed back into the door opening by the force of the spring after it has clicked into place. By tensioning the spring, closing the door requires increased effort, because the spring must be so strong that it overcomes the friction in the device, it must also be effective when the vehicle is on a slope with the door closing direction upwards, also if a long door seal is installed that has to be compressed. In addition, that will difficult to open the door because the spring acts on the engaged rotary latch.

It is also known for swing doors to have rotary latch locks with a perpendicular to the door front wall swiveling fork latch with locking washer to be installed, each with a detent for a pre-detent position and has a closed position. It is also known for rotary latch locks, deflection gear with linkage to be used for actuation by means of a door handle.

The object of the invention is based on the object of a rotary latch lock of the presupposed Art to create that makes it easier to close the sliding door, so only a small one to operate Requires swing of the sliding door and at the same time reduces the closing noise.

This object is achieved in that two rotary latch locks known from pivoting doors, each with a fork latch that can be pivoted perpendicular to the front wall of the sliding door and has a locking disc, each with a detent for the pre-latching position and one latch each for the closed position, on the sliding door front wall are arranged, the rotary latch locks with a door handle using a known per se Deflection gear via tie rods and a disc are connected in such a way that during the closing process the rotary latch locks first through the swing of the sliding door into the pre-latching position in Rotary latch lock for a sliding door

Applicant:

Volkswagenwerk Aktiengesellschaft,
3180 Wolfsburg

Named as inventor:

Kurt Schwenk, 3180 Wolfsburg

Engage the associated locking bolt and then while covering a further distance by turning (pulling) the door handle up to the Reach the closed position, the sliding door being pulled into the side wall and forcibly locked in it will.

so this means that the sliding door only needs less Speed and less effort to be pushed until the rotary latches into the first notch (pre-notch position) jump in, with a short way to final closing, for example 5 mm, remain. The final closing of the door from the pre-latching position to The closed position is then carried out by hand with the help of the door handle by turning the same (pressing).

In a further development of the subject matter of the invention, the locking bolt seated on a locking slide can on the one hand for the purpose of locking by a tension spring against the locking disc with the notches pressed, on the other hand the locking slide via tie rods and washer using the deflection gear be connected to the doorknob in such a way that by turning (pressing) the doorknob Unlatching takes place and the sliding door pops out of the side wall.

Furthermore, viewed in the door closing direction, the door handle can be horizontally rearward in the basic position be directed, in the closed position of the rotary latch lock it can point upwards, preferably 65 ° upwards, and in the open position downwards, preferably 20 ° downwards, after which Forced locking (closed position) or after opening the door handle in each case by the action of a The tension spring springs back into the horizontal basic position.

Only a single rotary latch lock, preferably arranged in the middle of the door end wall, is advantageous intended.

809 588/126

An exemplary embodiment of the invention is shown in the drawing. It shows

F i g. 1 a panel van with sliding door in side view,

F i g. 2 and 3 the plan view in section of the sliding door in the closed or open state,

F i g. 4 and 5 the sliding door in view from the inside or at a distance to the right of it in the closing direction seen from the rear seated door post,

6 shows the rear face of the sliding door in FIG. 4,

F i g. 7 the front face of the door post in Fig. 5,

F i g. 8 a the view (from the inside of the car) of the fork latch, connecting rod, deflection gear and doorknob existing locking device, whereby - for easier understanding of the operation - the illustrated a fork latch with its locking device is drawn rotated by 90 °, in open position,

F i g. 8 b to 8 d the locking device as in FIG. 8 a, however - omitting all explanatory notes the functionality not required parts - in other positions, namely: rest for the Pre-locking position engaged (FIG. 8 b), locking for the closed position engaged (FIG. 8 c) and in the position at the moment of opening, when the locking pin is pulled down and releases the fork latch (8 d),

F i g. 9 shows the side view of a fork latch according to FIG. 8 a with locking device.

1 with the side wall of a van is referred to, the door opening of which is closed by a sliding door 2 lying in the plane of the wall. The sliding door 2, which is suspended in three points, runs by means of rollers 3 a, 3 b attached to its front end on rails 4, which guide the front end of the sliding door 2 into the plane of the wall. On the rear side, the sliding door 2 is pulled onto the notches 17 a, 17 b by means of a U-shaped bracket 5. The fork latches 13 are pull rods 22 counteracting the force of the spiral leaf springs 18, the locking carriages 20 with their locking bolts 19 are pull rods 23 counteracting the tension springs 21 via a deflection gear 24 and corresponding pull rods 25, 26 which transmit the pulling movements to a disc provided with the door handle 27 28 and hinged to it in such a way that when the door handle 27 is turned upwards (pulling) the fork latches 13 are adjusted in the closing direction by engaging the locking pins 19, while the locking slide 20 with the locking pins 19 of the notches 17 when turned downwards (pushing) a, YIb on the locking disks 17 - thereby unlocking the fork latches 13 - are pulled away. A tension spring 29 is attached to the disc 28 in such a way that the door handle 27 always automatically returns to the horizontal position (normal position). Long holes 30 and 31 serving as freewheeling sections on the parts of the deflection gear 24 in which the tie rods 25 and 26 are suspended ensure that the unlatching devices remain unactuated when engaging and the engaging devices remain inactive when unlatching.

When the sliding door 2 is closed by pulling the door handle 27 - initially without turning it out of its normal position (horizontally) - the front end of the sliding door 2 is forced into the opening by the rollers 3 a, 3 b running in the rails 4, The kinetic energy that the sliding door 2 receives when it is closed causes tensioning of the tension spring 11 provided for opening the sliding door 2, a pivoting back of the U-bracket 5 and thus a pivoting of the rear end of the door into the plane of the wall. In the open position, the fork latches 13 (Fig. 2, 8 a), which are directed obliquely towards the locking pegs 15 on the rear door post 14, strike against the locking pegs 15, are rotated and latched up to the notch 17 α (pre-latching position).

35

guided on the side wall 1 on a rail 6. The 40 a. By turning the door handle 27 upwards, the U-bracket 5 is hinge-like on the one hand with the sliding end then subsequently via the disc 28, pull rod door 2, on the other hand with one with two rollers 8, deflection gear 24 and pull rods 22 the fork ends, Roller carriages 9 running on rail 6 fall 13 until they snap into notches 17 b . At the hinge (closed position) attached to the door and thereby the sliding door 2 body 10 for one end of the U-bracket 5 sits a tension spring 11 until it is completely closed in the door opening, which is pulled into a lever arm 12 of the (F i g. 8 c) attacks while putting back the rest of the U-bracket leg that it supports a pivoting of the U-bracket 5 and the sliding door 2 into the open position, but on the other hand when closing or pivoting the rear end of the sliding door 2 into the wall plane as Resistance occurring must be overcome by a counterforce.

On the rear sliding door front wall 2 α sits above

and below each a fork latch 13, which is in closed 55 so that the sliding door 2, as described above, springs into (swiveled) state of the sliding door 2 and its rear end from the wall plane on the end face of the door post 14 engages locking block 15 and lock the closed sliding door 2 at the top and bottom. Rigidly connected to each fork latch 13 via a shaft 16 is a latch 17 α for the pre-latching position and a latch 17 & for the closed position, with a spiral leaf spring 18 attached to the shaft 16 moving the fork latch 13 with the locking disk 17 into the open position presses. The 65

borrowed distance of just a few millimeters to the front door jamb.

Conversely, pressing the door handle 27 downwards has the consequence that the disc 28, pull rod 26, Deflection gear 24 and tie rods 23 seated on the locking slide 20 locking bolts 19 from the Notches 17 a, 17 & on the locking washers 17 are pulled away and the fork latches 13 are released,

swings out.

The device according to the invention can of course also allow the sliding door 2 to be somewhat stronger To close momentum, so that the fork traps 13 over the notches 17 a (pre-locking position) away Immediately jump into notches 17 ή (closed position) and the subsequent main locking by hand not applicable.

Notches 17 a, 17 & associated locking bolts 19 are seated on a locking slide that is movable in the vertical direction 20, which by a tension spring 21 in the direction

Claims (4)

Claims: Rotary latch lock in the senem state 1. for one lying in the closed wall plane Sliding door, especially for motor vehicles, the rear and / or front end of which is pulled into the wall plane by the rotary latch lock towards the end of the closing movement and held in it, characterized in that two rotary latch locks known from swing doors (fork latch 13 with locking disk 17) each with one vertical to the sliding door front wall (2 a) pivotable fork latch (13) with locking disc (17), each having a detent (17 α) for the pre-detent position and a detent (17 b) for the closed position, are arranged on the sliding door front wall, the rotary latch locks are connected to a door handle (27) using a known deflection gear (24) via tie rods (22, 25) and a disc (28) in such a way that during the closing process the rotary latches are initially through the swing of the sliding door (2) to in lock the supply position in the associated locking block (15) and then close it by covering a further distance through Dre hen (pulling) the door handle (27) to get into the closed position, the sliding door (2) being pulled into the side wall (1) and forcibly locked in it. as 2. Rotary latch lock according to claim 1, characterized in that the locking bolt (19) seated on a locking slide (20) on the one hand for the purpose of locking by a tension spring (21) against the locking disc (17) with the notches (17 a, 17 b) is pressed, on the other hand the locking slide is connected to the door handle (27) via tie rods (23, 26) and washer (28) using the deflection gear (24) in such a way that the door handle is unlocked by turning (pressing) the door handle and the sliding door ( 2) pops out of the side wall (1). 3. Rotary latch lock according to claim 1 or 2, characterized in that viewed in the door closing direction, the door handle (27) is directed horizontally to the rear in the basic position, in the closed position of the rotary latch lock upwards, preferably 65 ° upwards, and in the open position downwards , preferably 20 ° downwards, wherein after the forced locking (closed position) or after opening the door handle jumps back into the horizontal basic position by the action of a tension spring (29). 4. Rotary latch lock according to one of claims 1 to 3, characterized in that only a single rotary latch lock, preferably in the middle of the sliding door front wall (2a) is provided. Considered publications:
German Patent No. 913 025;
French Patent No. 1162 739;
British Patent No. 703 904. 1 sheet of drawings 809 588/126 7.68 © Bundesdruckerei Berlin