DE8119770U1 - BELT LOCK FOR SAFETY BELT SYSTEMS - Google Patents

Description

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- 2nd

Applicant: Sispa Gesellschaft für Sicherheits- und Spangenverschlüsse mbH, Süderstr. 1o 24o9 Pansdorf

Belt buckle for seat belt systems

The innovation relates to a belt buckle for seat belt systems, consisting of the one end of the belt connecting, surrounded by a plastic housing lock body and to be connected to another end of the strap Lock tongue, which can be pushed into the lock body at the front, in order to have a spring-loaded To be locked locking member in the lock body, this locking by pressing a acting on the locking member Release button. Can be canceled.

The known plastic housings for the belt buckles in question have a larger recess for a release button to operate the lock locking member. The release button is made separately and so in the recess used so that it cannot fall out. This construction of the housing with the separate release button has different Disadvantage.

On the one hand, the production is relatively expensive, since both the housing and the release button are

separate molds are required. Furthermore, for the
Release button a return spring can be provided to the

To return the key to its original position. Also falls | for the assembly of the button and its return spring

corresponding working hours, which are considered to be relatively considerable \

is to be seen, since this is a mass article

delt. Finally, since a canting or jamming f,

the release button avoided for operational safety reasons>;

must be, is the play between the key and |

the recess in the housing to be correspondingly large

measure what, however, is the risk of pollution in itself? '

which, in turn, ensures that it functions properly

can be impaired. |

The task of the innovation is to improve one
Belt lock of the type in question for seat belt systems,
that while maintaining a safe function easier and
can be produced cheaper.

To solve this problem, the seat belt buckle mentioned in the introduction is assumed, the improvement being that the release button is molded onto the plastic housing surrounding the lock body in the form of a tongue and
elastic when pressure is applied in the direction of the Sperrorgcui
is deflectable.

This solution results in a considerable reduction in the

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processing costs possible, since only a single injection mold is required, the design of which is the training of the housing and the simultaneous molding of the release button constructed as an integrated part. There as Plastic material, if a material with sufficient "permanent elasticity" is selected, the return spring can also be used as such and thus also their assembly are omitted. Assembly is also facilitated by the elimination of the given separate release button. Finally, the risk of soiling the lock parts is reduced because the now molded release button is provided with a tight fit in its housing recess.

The innovation is explained in more detail below and with reference to an embodiment shown in the accompanying drawing.
Show it:

FIG. 1 shows a longitudinal section through the Gehäuss according to the innovation with the one in the closed position Belt lock,

Figure 2 is a plan view a '.f the belt buckle or on the Housing, but the lock tongue is not shown.

According to Fig. 1, the belt lock shown consists of the lock body 1, which is in a plastic housing 2 with a release button 3 is attached, from a lock tongue 4 which can be inserted into the lock body from one narrow side,

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an ejector plate mounted longitudinally displaceably in the lock body 5 for the lock tongue, serving as a locking member, angular wave-shaped swivel bolt 6, which is with its one end in the vicinity of the belt-side narrow side of the lock body pivotable about an axis lying in the plane thereof is and which engages with its other end in the lock tongue 4, and from a leaf spring 7 as a return spring, which is supported on the one hand on the lock body 1 and on the other hand slidable against the underside of the swivel bolt 6 to keep it normally in the closed position. The lock tongue 4, which consists of a metal plate, has on the belt side a plastic trim 8 adapted to the housing 2, which is followed by the usual belt strap (not shown) . In the closed position according to FIG. 1, the lock tongue 4 presses with its front edge 4a against an opposite one Edge area 5a of the ejector plate 5, the plate 5 on the other hand against a spring 1o and the bolt 6 is applied and where the spring 1o on the other hand also on the latch 6 is supported.

The bolt 6, which extends in the longitudinal direction of the lock, is bent from a metal strip and points to its pivot bearing on each side a bearing pin H, the two bearing pins between the spaced apart Lock plates 12,13 of the lock body 1 are arranged. The plug-side end region of the bolt 6 is hook-shaped formed and engages in a recess 4b of the lock

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tongue 4 a.

The release button 3 is tongue-shaped and on the plastic housing molded by the top of the Housing made by injection molding is provided with a narrow, U-shaped slot 14. The material of the case 1 has the necessary permanent elasticity, so that the tongue-shaped release button is self-resilient resets automatically. If the release button is pressed according to the arrow drawn in FIG. 1 is exercised, it is deflected downward on the locking member 6 and brings this with further pressure from the Lock tongue 4 out of engagement. The lock tongue is then ejected from the lock body 1 by the ejector spring 1o. When the load is released, the molded release button springs back into its original position.

In order to further avoid the risk of breakage of the tongue-shaped release button, the attachment end regions 15 of the button can be rounded be designed. That for the housing 2 including the tongue 3 used plastic material is a copolymer, which can be both a low pressure and a high pressure polyethylene.

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Claims (1)

Prtentanwfitta
_r. Hugo WUcki
Dlpl.-lng, Thomas Wiloten Muetftrbahn 1 2400 LObeck 1 Dr. Hugo Wickert ·., ·: ... _r . , .. Applicant: Sispa Society for Safety and Security Clasp locks mbH, Süderstrasse 10 2409 Pansdorf Claim to protection . Belt buckle for seat belt systems, consisting of to be connected to the one end of the strap, surrounded by a plastic housing and lock body the lock tongue to be connected to another end of the strap, which can be pushed into the lock body at the front is to get over a spring preloaded standing locking member locked in the lock body are, said locking can be canceled by pressing a force acting on the locking member release button characterized in that the release button (3) on which the lock body (1) surrounding plastic housing molded in the form of a tongue (2) and \ applying pressure in the direction of the Locking member (6) elas table is deflectable.