DE102005029596B4 - Vehicle seat with a fitting part - Google Patents

Abstract

Vehicle seat with a fitting part (1) and a spring (4), the fitting part (1) having a shaped hole (2) for hanging one end (3) of the spring (4), a first diameter (d ₁ ) of the shaped hole ( 2) runs in the pulling direction of the spring (4) and is less than a length (I) of an end piece (9) of the end (3) of the spring (4) and a second diameter (d ₂ ) of the shaped hole (2) in orthogonal The direction to the pulling direction of the spring (4) is greater than the length (I) of the end piece (9), the end (3) being parallel to the second diameter (d ₂ ) of the shaped hole (2) when the spring (4) is suspended. runs, the end (3) in the design position of the spring (4) running parallel to the first diameter (d ₁ ) of the shaped hole (2), a head region (10) of the end (3) of the spring (4) in the design position a base (11) of the shaped hole (2) rests and the head region (10) of the end (3) with the position of the spring (4) disengaged from the design position on an inner surface (12) d it strikes the shaped hole (2).

Description

The present invention relates to a vehicle seat.

State of the art

Fitting parts of this type are already known and used in a wide variety of forms and designs. They are mainly used to attach vehicle seats and vehicle backrests to the body of a vehicle or as a connection between the seat and the backrest. On such fittings, springs are often arranged, which connect the fitting part with, for example, an actuating lever for folding down backrests or the like. These springs are hooked into shaped holes in the fitting part at one end. At the other end, the springs are connected to the actuating lever or the like.

The disadvantage here is that the springs can be unhooked from the shaped holes unintentionally or through misuse, for example when the fitting parts are further processed. This can damage the fitting part or make the vehicle seat inoperative after its completion. In order to prevent this, very complex constructions have been made, which have various disadvantages.

This disadvantage is shown in the prior art in US 2004/0217 528 A1. There is in the 8th , 9 and 10 it can be seen that the spring with the molded-on hook-like end can easily and unintentionally be unhooked from the shaped hole. This risk is due to the longitudinal shape of the molded hole in relation to the direction of spring tension and is only prevented by the complex construction of the molded part arranged inside the spring. This arrangement protects the spring from slipping, which prevents the spring from slipping out of the molded hole even when the spring is in a relaxed state. However, this solution is complex and takes up a comparatively large amount of space, since the spring must provide sufficient space for the molded piece located on the inside.

Also in the U.S. 6,053,555 A points the shaped hole of the fitting part into the 7th and 8th a formation that cannot prevent the spring from being unintentionally detached. Here, the spring is prevented from sliding out by the fact that the two fitting pieces, which are connected via the spring, are arranged in such a complex manner with respect to one another that, in conjunction with a precisely defined spring length, a certain residual tension prevents them from sliding out. This very precise and correspondingly complex construction is already susceptible to the fact that the spring can slip if it loses only a little of its tensile force by being easily borrowed. If this spring fatigue occurs through use, the spring slides out of the molded hole in the slightly tensioned position. This can even lead to an impairment of operational safety.

Object of the invention

The object of the present invention is therefore to create a vehicle seat with a fitting part in which a spring can be hooked into a molded hole in a simple manner and in which the spring is secured against being detached after being hooked into the molded hole.

Solution of the task

The vehicle seat disclosed in the single claim leads to the solution of the problem with a fitting part.

A first diameter of the shaped hole runs in the pulling direction of the spring, whereas a second diameter of the shaped hole runs approximately orthogonally to the one diameter.

If the spring or its end is to be hooked into the molded hole, this is done approximately orthogonally to its later pulling direction and parallel to the first diameter of the molded hole until the spring is hooked into the molded hole. The spring is then rotated by approximately 90 ° so that the end of the spring runs parallel to the second diameter of the shaped hole in the direction of pull of the spring.

When the spring has reached its final design position, a head area of the end of the spring rests against a base of the shaped hole.

If the spring is now disengaged from its design position, be it unintentionally or intentionally, the head region of the end of the spring strikes an inner surface of the shaped hole. However, since the first diameter in the pulling direction is smaller than the length of the end of the spring hooked into the molded hole, the spring cannot slide out of the molded hole. Thus, the spring is secured in the mold hole.

With regard to the shape and configuration of the shaped hole, many possibilities are conceivable and are intended to be encompassed by the present invention. It is important that the two diameters of the shaped hole adapt to the length of the end piece of the end of the spring. This means that the first diameter must be smaller than the length of the end piece, while the second diameter must be larger than the length of the end piece. Furthermore, the first diameter, which is smaller than the length of the end piece, must run in the final pulling direction of the spring.

Furthermore, the two diameters of the shaped hole preferably run orthogonally to one another. Another alignment of the two diameters to one another is conceivable and is intended to be covered by the present invention. However, if the angle between the two diameters is too small, a slight rotation of the spring may be sufficient to unhook it from the mold hole. This must be prevented.

Figure list

• 1 eine perspektivische Ansicht einer Feder während der Einhängung in ein Formloch eines Beschlagteils gemäss der vorliegenden Erfindung;
• 2 eine perspektivische Ansicht der Feder in Designstellung in dem Formloch nach 1;
• 3 eine perspektivische Ansicht der Feder in aus der Designstellung nach 2 ausgerückter Position in dem Formloch nach 1;
• 4 eine perspektivische Rückansicht eines Endstückes eines Federendes bei Designstellung der Feder in dem Formloch nach 2; und
• 5 eine perspektivische Rückansicht des Endstückes des Federendes bei aus der Designstellung ausgerückter Position in dem Formloch nach 4.

Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and with reference to the drawing; this shows in

• 1 a perspective view of a spring during the suspension in a molded hole of a fitting part according to the present invention;
• 2 a perspective view of the spring in the design position in the mold hole according to 1 ;
• 3 a perspective view of the spring in from the design position according to 2 disengaged position in the mold hole 1 ;
• 4th a perspective rear view of an end piece of a spring end in the design position of the spring in the mold hole according to 2 ; and
• 5 a perspective rear view of the end piece of the spring end in the disengaged position in the mold hole from the design position 4th .

According to the 1 until 5 has a fitting part 1 of a vehicle seat according to the invention, not shown in detail, has a shaped hole 2 on. In the mold hole 2 is a hook-shaped end 3 a feather 4th , in particular a tension spring, suspended. An opposite ending 5 the feather 4th is in a hole 6th a release tab 7th an operating lever 8th hooked.

The shape hole 2 points in the direction of pull of the spring 4th a first diameter d ₁ , which is less than a length I, in particular of a bent end piece 9 of the hook-shaped end 3 the feather 4th and is less than a second diameter d ₂ , which is approximately orthogonal to the first diameter d ₁ . This is particularly evident in the 4th and 5 to see. The second diameter d _2, however, is greater than the length I of the bent end piece 9 of the hook-shaped end 3 the feather 4th .

The mode of operation of the present invention is as follows:

For hanging the spring 4th becomes the hooked end 3 the feather 4th offset by about 90 ° into the shaped hole 2 used, ie parallel to the second diameter d _{2 of} the shaped hole 2 (please refer 1 ). Then the spring 4th pivoted back by about 90 °, with a head area 10 of the hook-shaped end 3 the feather 4th on a reason 11 of the mold hole 2 as in 4th shown.

The opposite end 5 the feather 4th gets into the hole 6th the release tab 7th of the operating lever 8th hooked. The feather 4th is now in its design position, as in 2 shown.

If the fitting part is processed further 1 it can happen to the spring 4th from their design position according to the 2 and 4th expresses how this is in the 3 and 5 can be seen. Due to the fact that the first diameter d _{1 is} in the direction of tension of the spring 4th is less than the length I of the end piece 9 of the hook-shaped end 3 the feather 4th , can the hooked, hook-shaped end 3 the feather 4th not out of the mold hole 2 slide out. Instead, the head area hits 10 the feather 4th to an inner surface 12th of the mold hole 2 at.

Should the pen 4th but on purpose out of the mold hole 2 are removed, it only has to be swiveled again by about 90 °, so that the hook-shaped end 3 the feather 4th parallel to the second diameter d _{2 of} the mold hole 2 runs. Since the second diameter d _{2 of} the mold hole 2 is greater than the length I of the arcuate end piece 9 of the hook-shaped end 3 the feather 4th , can the pen 4th now slightly out of the shaped hole 2 to be posted.

Claims (1)

Vehicle seat with a fitting part (1) and a spring (4), the fitting part (1) having a shaped hole (2) for hanging one end (3) of the spring (4), a first diameter (d ₁ ) of the shaped hole ( 2) runs in the pulling direction of the spring (4) and is less than a length (I) of an end piece (9) of the end (3) of the spring (4) and a second diameter (d ₂ ) of the shaped hole (2) in orthogonal The direction to the pulling direction of the spring (4) is greater than the length (I) of the end piece (9), the end (3) being parallel to the second diameter (d ₂ ) of the shaped hole (2) when the spring (4) is suspended. runs, the end (3) in the design position of the spring (4) running parallel to the first diameter (d ₁ ) of the shaped hole (2), a head region (10) of the end (3) of the spring (4) in the design position a base (11) of the shaped hole (2) rests and the head region (10) of the end (3) strikes against an inner surface (12) of the shaped hole (2) when the spring (4) is disengaged from the design position.

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