CZ743U1 - Device for securing door against slamming - Google Patents

Description

Device for securing doors against slamming

Technical field

The invention relates to a device for securing the door against slamming and closing the door without a key, intended for locks with a latch which has an inclined ramp.

BACKGROUND OF THE INVENTION

Currently, left and right locks are commonly marketed, which differ in the location of the inclined infeed side of the latch projecting from the plane of the lock. It is also known lock, described in MS. No. 196 924 with a universal type of rotating latch. Furthermore, a number of security locks are known as well as a number of additional devices making it difficult to forcibly enter the apartment or building.

In the case of these known types of locks, including a latch with a sloping approach surface, there are often difficulties in opening these types of doors in case of accidental slamming, when the key is either unavailable or remained in the lock from the other side of the door or stayed in the lock.

BACKGROUND OF THE INVENTION

The disadvantages of accidentally slamming a door with a rotating latch lock are eliminated or substantially reduced in the device according to the present invention, which consists in the fact that the latch has its sloping approach surface provided with a notch and an opening is arranged at the latch level from the inside of the door. in which the reversible slide bar is stored.

Advantageously, the rod is housed in a guide sleeve mounted in the door opening and provided with a rod retaining mechanism and a thrust member.

It is also advantageous if the notch in the inclined approach surface of the latch is provided with a damping element.

It is also advantageous if the rod retaining mechanism consists of a braking element arranged in contact with the rod and the control element or a spring element.

In addition, it is advantageous if the guide sleeve is provided with an internal shoulder.

The main advantage of this design notch on the inclined approach surface of the latch in combination with the positioning of the reversible sliding bar in the door opening is the prevention of accidental slamming of the door without the key.

One of the optimum design solutions is to fit the guide rod in a guide sleeve equipped with a rod retaining mechanism to prevent it from falling out. For easier manipulation with the rod serves a push element.

Equipping the notch of the inclined approach surface of the latch with a damping element ensures the prevention of noise or event. notch mechanical wear.

A preferred improvement of the retaining mechanism is the combination of the thrust braking element with a direct thrust control element. This mechanism as a whole serves as a braking mechanism when the rod moves back.

The design of the guide sleeve with internal shoulder allows for use as a key pushing element.

BRIEF DESCRIPTION OF THE DRAWINGS

The apparatus according to this invention is described in detail below with reference to the accompanying drawings, in which: FIG. 1 is a top view of a device in its simplest embodiment; FIG. 2 is a top view of a device with a guide sleeve with a push member; Fig. 4 is a top view of a device with an internal shoulder of a guide sleeve.

Examples of working solutions

Example 1

The device shown in FIG. 1 prevents the door 2 with the latch lock 2 from accidentally slamming in a simple design. On the inclined entry surface 3 of the latch 2, a notch 4 is provided, for example by phasing, in the entire inclined entry surface 3 of the latch 2. The inner side of the door 1 is provided with an opening 5 of the door 1 in which a reversibly sliding guide a rod 6 at the level of the latch bolt 2, the rod 6 being made of metal.

When the door 1 is closed, the latch 2 with the notch 4 strikes the door frame 7 and the door 1 does not slam. The rod 6 is pushed in, the latch 2 is locked in the lock and the door 1 slamps to extend the rod 6 towards the inside of the door 1 until the latch 2 is released, which slides into the door frame 2 ·

Example 2

FIG. 2 shows an improved alternative embodiment of an apparatus which, in addition to the previous exemplary embodiment, additionally has an internal design

- 3 sides of the door X fixed in the door opening χ χ a guide sleeve 3 of a mechanically resistant material, for example brass, in which a guide rod 6 is moved reciprocatingly in the horizontal direction and is slid out of the sleeve 8 towards the inside of the door χ. For ease of handling, the guide rod 6 is provided with a pressure element 9 in an embodiment of, for example, plastic, wood and the like.

The housing 8 is provided with a rod thrust mechanism χ shown in detail in Fig. 3.

This rod thrust mechanism χ (Fig. 3) consists of a braking element 10, eg a ball, which presses the rod χ by means of a spring element 11 eg a coil spring. The downforce force is controlled by the downforce control element 12, eg a worm. The braking element 10 and the pressure regulating element 12 are metal.

In this exemplary embodiment, the notch 4 of the latch 2 is provided with a damping element 13, eg a rubber band. In an attempt to slam the door 4, the cushioning element 13 of the latch notch 4 strikes the doorframe 7 ^and thereby dampens impact upon repeated slamming attempts and protects the notch 4 of the latch 2 and the door sash 7.

When the door handle χ is pushed and the rod 6 is pushed by the pushing element 9, the latch χ is blocked inside the lock. When the door χ slams, χ strikes the doorframe χ, pulls out towards the outside of the door χ, releases the latch χ, it enters the doorframe χ and the door χ closes. At the same time, the return of the rod χ is inhibited by the rod χ thrust mechanism, so that the rod χ does not fall to the floor.

Example 3

Another alternative embodiment is shown in FIG. In addition, the guide sleeve 8 has an internal shoulder 14 in the opening 15 of the sleeve χ. The rod χ is in this case inserted into the housing χ, it does not protrude on the outside of the door χ and never protrudes on the inside of the door χ. In order to prevent the rod χ from dropping from the housing 8 to the floor when the door χ is closed, the housing 8 is either provided with a pressing mechanism of the rod χ mentioned in the previous embodiment, or the opening 15 may be provided with a stop 16 in the inlet opening 17 of the stop 16.

In this case, the bar χ is pushed by an additional thrust element 9, for example a key that can hang freely on the chain. The keys push on the bar χ, which locks the latch 2 inside the lock and can close the lock without the key.

Claims (5)

PROTECTION REQUIREMENTS A device for securing a door against slamming and closing a door without a lock, intended for latches with a latch bolt having an inclined ramp, characterized in that the inclined ramp (3) of the latch bolt (2) is provided with a notch (4) and At the level of the latch (2), an opening (5) of the door (1) is arranged from the inside of the door (1), in which the reversible sliding bar (6) is mounted. Device according to claim 1, characterized in that the rod (6) is housed in a guide sleeve (8) mounted in an opening (5) of the door (1) and provided with a rod-holding mechanism (6) and a pushing element (9). Device according to claim 1, characterized in that the notch (4) is provided with a damping element (13). 4. Device according to claim 2, characterized in that the rod-holding mechanism (6) consists of a braking element (10) arranged in contact with the rod (6) and connected to a pressure regulating element (12), optionally with spring element (11). Device according to claim 2, characterized in that the guide sleeve (8) is provided with an internal shoulder (14). · that