CN1683184A

CN1683184A - Vehicle seat frame

Info

Publication number: CN1683184A
Application number: CNA2005100515916A
Authority: CN
Inventors: 丹尼斯·格雷普
Original assignee: Sears Manufacturing Co
Current assignee: Sears Manufacturing Co
Priority date: 2004-04-15
Filing date: 2005-03-07
Publication date: 2005-10-19
Also published as: JP2005297950A; GB2413070A; US20050231019A1; DE102005017061A1; GB0504848D0

Abstract

A seat frame comprises a unitary magnesium die cast body having a top, a bottom, two sides, and front and back surfaces. The front surface has an outer perimeter flange positioned adjacent the two sides and the top of the body. An inner perimeter flange is spaced from and generally coextensive with the outer perimeter flange. The front surface also has at least one horizontally oriented flange and at least two diagonally oriented flanges. This arrangement, together with the use of the die cast magnesium, results in a lightweight yet strong and durable frame that provides uniform support to the overlying seat cushion. The frame body is also provided with a large aperture that is positioned to lower the seat assembly center of gravity.

Description

Vehicle seat frame

Invention field:

Relate generally to of the present invention car seat is more specifically said, relates to a kind of improved vehicle seat frame that is mainly used in the ling-distance truck seat.

Background technology:

Generally comprise the internal framework that constitutes by sheet steel and steel pipe such as the sort of car seat of on car and truck, using.Assembling or foamed plastic mat of injection moulding on this framework also have the disjunct or soft overplate of all-in-one-piece on it.Most of legacy card vehicle seats are made with truss of steel tube, and the framework fracture is common problem.By the framework that steel plate or steel pipe are done, except physical damage took place, its manufacturing and assembling labour intensity were big, the cost height.Another relevant problem of traditional therewith framework structure is the supporting inequality of foamed plastic mat.

Using integral formula framework, for example plastic skeleton of injection moulding or preesure-poured metal frame, these problems can be eliminated.But plastic skeleton is too soft usually, does not have enough impregnabilityes and durability to be fit to abominable vehicle seat environment for use.Some cross-country vehicle seat is made with preesure-poured zinc framework, but it is more crisp, requires a lot of materials just satisfied load-carrying capacity can be arranged.

Brief summary of the invention

The invention provides the shortcoming that the preesure-poured magnesium mounting of integral type overcomes prior art.Mounting of the present invention utilizes unique die casting structure, and sturdy and durable, manufacturing cost is lower.According to the present invention, mounting comprises a unitary body, and it comprises top, bottom, both sides and front and the back side.There is a peripheral outer lips in the front, near the both sides and the top of main body.Interior all flanges separate with peripheral outer lips and are parallel substantially.Positive also have at least one substantially in horizontal direction flange and the flange of at least two diagonals.This layout adds and adopts die casting magnesium that the framework that obtains is in light weight and sturdy and durable, can also provide even support to the seat cushion that covers.The framework main body also has a big hole, and its position can reduce the center of gravity of seat-assembly.

Brief Description Of Drawings

Characterizing novel characteristics of the present invention states in the appended claims book.But the present invention itself and purpose thereof and attendant advantages can and obtain best understanding in conjunction with the accompanying drawings referring to following explanation, wherein:

Fig. 1 is an elevational perspective view, and one embodiment of the present invention is shown;

Fig. 2 is a rear perspective embodiment illustrated in fig. 1, and

Fig. 3,4,5th, the top view of preferred embodiment shown in Figure 1, front elevation and lateral plan.

DETAILED DESCRIPTION OF THE PREFERRED

Referring to accompanying drawing, a preferred embodiment of vehicle seat frame constructed according to the invention is with label 10 expressions.The main body 12 of mounting 10 has top 14, bottom 16 and both

sides

18,20, and main body 12 also has the front 22 and the back side 24.

The material 26 that helps of periphery extends and strides across the top of main body along both sides.Help material 26 to preferably include peripheral outer lips 28 and interior all flanges 30, these two flanges all stretch out from the main body front and are separated from each other.Between these two periphery flanges a series of bridge joint flanges 32 are arranged, they and periphery flange are preferably at an angle.Stretch out at least one from the front of main body, best two horizontal flanges 34 are positioned at the following zone of main body, are preferably in the lumbar region of passenger on the seat.The flange 36 that also has a series of diagonal on the main body front, the flange of level and diagonal promptly reach interior all flanges of main body opposite side substantially across whole positive 22 from interior all flanges of main body one side.As having shown in the embodiment of illustration, these flange preferred design become its aspect ratio in the end 40 of close interior all flanges 30 big along the height of intermediate length 42.

The upper part of main body 12 has a hole 44.Hole 44 is bigger, its diameter preferably be about main body 12 the upper part lateral dimension 1/2nd.The position in hole and size help to reduce the center of gravity of mounting, finally reduce the center of gravity of whole seat-assembly, have strengthened the collision safety performance of seat so again.

Though mounting of the present invention is preferably made the integral type diecasting, this die casting main body 12 can be used together with other parts, to improve its commonality.In the embodiment shown, elongator above available one of the raising of this commonality 46 and supporting realization of so-called wing chair upper zone.Elongator 46 usefulness tubing or bar are made and can be made different shape, decide according to the concrete size and dimension of high back pad of using on the seat.Elongator can insert its vertical edge 48 in the suitable mounting hole that forms in the main body just can be assembled into main body 12 tops easily.

Can there be multi-form cavity to realize other function in main body 12 peripheries.For example, cavity 50 receivabilities in the both

sides

18 and 20 of main body 12 are installed the hardware that handrail is used to the seat.Equally, dimple 52 can make mounting be assembled on other seat component, on seat suspension or other framework part.

State the bright implication that limits the speech of using in the claim of the regulation scope of the invention more than not planning.Antithesis, to structure, on function or the effect further change can be arranged, it is all included by claim that these change little changes also little and all these applications.

Claims

1, vehicle seat frame comprises

Integral type casting magnesium main body, it has top and bottom, two sides, the front and the back side;

Peripheral outer lips is formed on this main body front and is positioned at both sides and main body top;

In all flanges, it is positive and parallel substantially with peripheral outer lips and separate to be formed on this main body;

At least one across the horizontal flanges in main body front and at least two across the main body front substantially at the flange of diagonal.

2, vehicle seat frame as claimed in claim 1 also comprises many bridge joint flanges of stretching between the peripheral outer lips.

3, vehicle seat frame as claimed in claim 1 is characterized in that, two horizontal flanges is arranged across the positive of main body and be positioned at the following zone of main body.

4, vehicle seat frame as claimed in claim 1 is characterized in that, described main body zone in the above has a hole.

5, vehicle seat frame as claimed in claim 4 is characterized in that, this hole dimension is 1/3rd of the described upper zone lateral dimension that laterally equals main body at least.

6, vehicle seat frame as claimed in claim 1 is characterized in that, from the flange of positive protruding at least one horizontal flanges of main body and at least two diagonals, it is regional bigger than body interior at the body rim overhang.