JP2013217060A - Striker for latch lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a striker for a latch lock in which contact sounds between a latch and the striker can be reduced further.SOLUTION: A latch striker for a latch lock is configured by forming a substantially rectangular window 4 in an area where a head of a latch bolt is brought into contact first, and fitting a striking part 2 of a polymer into the window 4 in such a manner that the entire latch striker becomes flat substantially.

Description

  The present invention relates to a seat for a latch lock capable of reducing a contact sound and a collision sound between the latch and the seat.

The latch lock has a disadvantage that the head of the latch bolt comes into contact with the seat when the door is closed, and a contact sound is generated at that time.
In order to solve such a problem, as shown in Patent Document 1 and FIGS. 3A and 3B, a part of the latch bolt B of the latch lock A, that is, a part of the contact surface with the seat C is made of synthetic resin. It has been proposed to partially cover with D. In addition, the code | symbol E in a figure shows the contact part of a seat.

JP 2001-12116 A

According to this, although there is a silencing effect compared with the case where a certain metal collides, it still has a problem that a contact sound is generated to the extent that it is annoying.
The present invention has been made in view of such problems, and its object is to
It is an object of the present invention to provide a seat for a latch lock that can further reduce the contact sound between the latch and the seat.

In order to achieve the above object, the present invention provides a latch receiving seat of a latch lock, wherein a substantially rectangular window is formed in a region where a head of a latch bolt first contacts, and a contact portion of a polymer material is formed on the window. Are fitted so that the entire latch seat is substantially flush.

Since a contact member made of a polymer exists in the contact area of the seat, the impact is quickly absorbed by the polymer having a viscoelasticity larger than that of the metal, and the generation of the impact sound is suppressed.

It is a perspective view which shows one Example of this invention. The figure (a) (b) shows the member which comprises a seat. FIGS. 1A and 1B are views showing the relationship between the latch lock and the receiving seat, and an example of a latch bolt having a silencing function.

The details of the present invention will be described based on the illustrated embodiment.
FIG. 1 shows an embodiment of the present invention. Reference numeral 1 is a latch seat that is biased by a spring and receives the head of a latch bolt in a door closing position, and is provided on a mounting frame of the hinged door. .
In the latch seat 1 of the present invention, a contact member 2 made of a polymer material is fixed to the first contact area of the latch bolt.

FIGS. 2A and 2B are members constituting the latch seat 1 of the present invention, respectively. The seat body 3 is a first contact area of the latch, that is, a corner portion 3a bent in a substantially L-shaped cross section. A substantially rectangular window 4 is formed.

On the other hand, the contact member 2 is configured by fixing a polymer material of a size that can be pushed into the window 4 to a collar 4 having an L-shaped cross section.

When these members are inserted into the window 4 from the back surface of the seat body 3 by aligning the contact member 2 and inserting the collar 5 into the window 4, the contact member 2 bites into the window 4 due to elastic deformation of the polymer material. Fixed here.

In the seat configured as described above, when the door is closed and the tip of the latch bolt collides with the seat, even if the head of the latch bolt is made of metal, the contact area of the seat 1 is not polymerized. Since the made contact member 2 is present, the impact is absorbed by the polymer having viscoelasticity larger than that of the metal, and the generation of impact sound is suppressed.

In the embodiment described above, the window 4 is formed in the contact area of the receiving body 3 and the polymer contact member 2 is fitted therein, so that the entire receiving seat can be configured as flush as possible.

1 seat 2 per part 3 seat body 4 window 5 collar

Claims (2)

In the latch seat of the latch lock, a substantially rectangular window is formed in the area where the head of the latch bolt first contacts, and the contact portion of the polymer material is made substantially flush with the window. A latch lock seat.   The latch contact according to claim 1, wherein the contact portion is fixed to a metal collar.

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