DE1580778B2

DE1580778B2 - SPRING ATTACHMENT

Info

Publication number: DE1580778B2
Application number: DE19661580778
Authority: DE
Inventors: Kochi Akishima Tokio Fujikawa (Japan)
Original assignee: Nobuyoshi, Saito; Koichi, Fujikawa; Akishima, Tokio (Japan):
Priority date: 1966-12-21
Filing date: 1966-12-21
Publication date: 1972-06-29
Also published as: GB1133804A; DE1580778A1

Description

Bei Belastung der Flachfedern können sich somit Bei der Abwandlung, dargestellt in F i g. 2, ist dasWhen the flat springs are loaded, the modification shown in FIG. 2, is that

dieselben im Bereich ihrer Auflegepunkte gegenüber untere Ende des Mittelstückes 7 bogenförmig weggedem Rahmenteil nicht oder nur unwesentlich ver- schnitten; dadurch entsteht ein Schlitz 8, der etwas schwenken, so daß das Auftreten von Quietschgeräu- weiter ist als der Durchmesser der Formfeder. Der sehen praktisch vollkommen vermieden ist. 60 Schlitz 8 erleichtert den Einbau der Formfeder 2, dathe same in the area of their points of support opposite the lower end of the center piece 7 arcuate weggedem Frame part not or only insignificantly cut; this creates a slot 8, which is something swivel so that the occurrence of squeaking noises is wider than the diameter of the shaped spring. Of the seeing is practically completely avoided. 60 slot 8 facilitates the installation of the shaped spring 2, since

Um das Einhängen der Flachfedern möglichst üzu sie schnellstens befestigt werden kann, indem das erleichtern, erweist es sich als zweckmäßig, wenn die letzte gekrümmte Stück der Feder 2 schief in den Bohrungen durch einen bogenförmigen Schlitz mit- Schlitz 8 hineingeschoben wird. Eine endgültige Festeinander verbunden sind. legung der Formfeder kann in diesem Fall durchIn order to hang the flat springs as quickly as possible, they can be attached as quickly as possible by the facilitate, it proves useful if the last curved piece of the spring 2 askew in the Bores through an arcuate slot with slot 8 is pushed in. A final feast are connected. In this case, the shaped spring can be laid by

Um ebenfalls die äußersten Spitzen der Flachfe- 65 Klemmen des Mittelstückes 7 nach dem Einbau der dem möglichst gut zu fixieren, erscheint es zweckmä- Feder 2 erreicht werden. Diese Ausführungsform ist ßig, wenn zusätzlich im Bereich der Bohrungen zwei speziell für S-förmige Federn angebracht und für Schlüssellochbohrungen angeordnet sind. Fälle, bei denen das andere Ende der Feder schon be-To also the outermost tips of the flat spring 65 clamps of the middle piece 7 after the installation of the To fix this as well as possible, it appears expedient to achieve spring 2. This embodiment is if two specially for S-shaped springs and for Keyhole bores are arranged. Cases in which the other end of the spring is already

festigt ist, wodurch größere Einführungswinkel bei dem Einbau nicht möglich sind.is fixed, which means that larger lead-in angles are not possible during installation.

Eine andere Ausführungsform mit einer angenäherten quadratischen Rahmenbasis ist in F i g. 3 abgebildet. Zwei schlüssellochförmige öffnungen sind in diesem Fall zwischen dem Wulst und dem unteren Rahmenteil angebracht. Bei Benutzung einer dieser Schlüsselbohrungen 9 kann eine gewöhnliche Schnittstelle der Formfeder befestigt werden, ohne daß vorher das Federende in einem besonderen Arbeitsvorgang auf die Form entsprechend Fig. 1 umgebogen werden müßte.Another embodiment with an approximately square frame base is shown in FIG. 3 pictured. Two keyhole-shaped openings are in this case between the bead and the lower one Frame part attached. When using one of these key bores 9, an ordinary interface the shaped spring can be attached without the spring end in a special operation beforehand bent over to the shape shown in FIG would have to be.

Eine weitere Abwandlung, bei der «Se Rahmenbasis einen unregelmäßigen Querschnitt und eine Abwinkelung aufweist, ist in F i g. 4 dargestellt. Unter der Benutzung einer Abwinkelung 10 können Formfedern 2" für Rückenlehnen an Autositzen befestigt werden, indem die Abwinkelung 10 an Punkt 11 eingestemmt und an das untere Rahmenteil mit dem Punktschweißvgrfahren angeschweißt wird. Der Einbau der Feder erfolgt nachträglich. An Stelle des Punktschweißverfahrens kann die Formfeder auch durch Klemmen einer Klemmklappe 12' befestigt werden, wie im mittleren Teil von F i g. 4 dargestellt.Another modification, in which the frame base has an irregular cross-section and an angle, is shown in FIG. 4 shown. Using a bend 10, shaped springs 2 " for backrests can be attached to car seats by mortising the bend 10 at point 11 and welding it to the lower frame part using the spot welding method. The spring is installed later. Instead of the spot welding method, the shaped spring can also be fastened by clamping a clamping flap 12 ', as shown in the middle part of FIG.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 ρ ... In order for such frame parts Sir Automobilf atentansprucne: also sit the to support the backrest

1. Spring fastening, especially for automobiles to be able to hook in flat springs, it proves to be bi-seated with a one-piece tubular frame to be expedient if the frame part has a lateral bend with several additional parts arranged in pairs.
Bores for hanging in serpentine shape To fix the flat springs in the coiled flat springs, this is useful if the lateral bend shows that the tubular frame part (4) is provided with clamping tabs.

a longitudinal bead (3) and the pairs arranged- The invention is now based on execution

th bores (5) have projections (6). examples are explained and described in more detail

2. Spring fastening according to claim 1, characterized in that reference is made to the drawing. characterized ,, that the bores (5) through Fig. 1 is a perspective view of a Raheinen arc-shaped slot (8) with one another and the end piece of a shaped spring, such as are bound. it is attached to the frame;

3. Spring fastening according to claim 1 or 2, »5 F i g. Fig. 2 is a similar view showing a somewhat different view characterized in that additionally shows the type of frame attachment;

rich of the holes (5) two keyhole holes- Fig. 3 and 4 show other types of fastening,

rangen (9) are arranged. The reference symbols in FIG. 1 show a hollow

4. Spring fastening according to one of the frame part, which, however, does not consist of prefabricated Proverbs 1 to 3, characterized in that the 20 steel tubes, but by rolling and bending a frame part (4) additionally a lateral angled steel sheet is made, and a special one has development. Cross section through the presence of a round Π

5. Spring fastening according to claim 4, characterized by the longitudinal bead 3 at the top of the otherwise circular unte- ^ i- * characterized in that the lateral bend has Ren frame part 4. The longitudinal bead 3, the

(10) is provided with clamping tabs (12 '). 25 axially the entire length of the frame part along ver

runs, gives the frame extra strength and becomes;

used to hold a shaped spring 2 to:

give. For this purpose, in the sheet material on the side of the bead 3 before the bending process

The invention relates to a spring fastening gear for each spring fastening two elongated openings, especially for automobile seats, punched with a hole (see Fig. 1). The bead interior of the ■; One-piece tubular frame part with several middle pieces 7 between two bores 5 is sufficient holes arranged in pairs for hanging, designed to be wide and long, around the end of the j of serpentine coiled flat feathers. Forin spring 2 to be included. On the lower edge of the j

It is already known (see US Pat. 35 bores 5, projections 6 are formed. Through; 2 440 001), within a tubular frame - the projections 6, the shaped spring 2 is held at the parts α, each of which has two bores arranged in pairs .

to provide in which the ends of flat springs For fastening the end of the shaped spring 2 j

can be attached. Such spring fastenings are introduced parallel to the bead into one of the bores for hanging in a serpentine twist and brought out of the other again. Through which flat springs, however, have the disadvantage that pivoting of the shaped spring downwardly are a relatively thereafter: poor fixing occurs, which How-the bent parts α of the shaped spring with the Vorderum has the result that during loading of the Flachfe- sprängen contacted 6 . Squeaking noises occur in this end position, the end of the shaped spring being fixed by displacement, since the pivoting of the flat springs on their suspension end piece between points aa within points in the frame part is then caused. of the middle piece 7 is and the bent parts a

With regard to this prior art, it is the spring that lies firmly on the projections 6. the Purpose of the invention, a spring fastening - ins- form spring is therefore never in relation to the frame in particular for automobile seats - to create which men pivoted, even if the spring itself if the flat springs are heavily loaded, the 5 ° seat is heavily loaded. In addition, any lateral prevent squeaking noises. Displacement of the shaped spring prevented. The angle,

According to the invention this is achieved in that the shaped spring in relation to the frame part 1 the tubular frame part has a longitudinal bead and which should take up, by appropriate dimensioning of the Boreholes arranged in pairs, projections on projections 6 between the critical angles 0 to 70 ° point. . ■ - · ■■■ 55 can be changed.