DE702097C - Method for connecting hinged bands to their tenons by riveting across - Google Patents

Description

Method for connecting hinged ligaments to their tenons by transverse riveting Fixing the pin and button tenons in the flap rolls of the hinge straps for Doors and windows are made in the well-known manner by means of cross rivets.

The holes for these cross rivets that pass through the entire roll has drilling overall. Here the boyirs often got lost and broke off. The result was high tool and therefore steel consumption, combined with lost work. According to a well-known method, an attempt was made to shorten the drilling process by building the holes only up to the middle of the pin. Button pin executed. In order to prevent the rivet from falling out, the rivet hole was countersunk from the inside with a rag, so an expansion was made into which the rivet wire could bulge.

The netic @ -erfalir (° n eliminates the need for any boli-en and thus expensive Machining of building material. by the invention for the button and pin pin one Transverse groove in the form of a simple truncated wedge is proposed. These The transverse groove extends to approximately the middle of the cross-section of the journal and is made by means of a punched out correspondingly shaped stamp.

The punching out is expediently carried out partially in the flap sleeves introduced head or. Pin pin to cover the rivet hole of the rag sleeve with the transverse groove of the button or pin pin zti.

The new process is illustrated in the drawing, for example. They show: Fig. I a Fitschenlappen with partially inserted button pin, Fig. 2 a fitting rag with a partially inserted button pin with a transverse groove, Fig. 3 a flap with a fully inserted button.

Fig. 4. a cross section along line a-b of Fig.3 and Fig.5 a Cross-section along line a-b in Figure 3 with rivet.

In the flap sleeve i which is provided with a rivet hole 2, the Button pin 3 inserted. so far that a piece of the shaft still comes out of the flap sleeve i stands out. This free end of the shaft is exposed to the action of a punch knife, which the transverse groove q. cut out in the shape of a simple wedge.

The punch knife cuts past the edge of the flap sleeve: it results thus a right-angled side to the pin axis, while that of your button-head next side runs obliquely outwards in order to allow the chip to flow away facilitate. Now the button 3 is completely inserted into the flap sleeve i (Fig. 3). The transverse groove .4 comes to lie under the rivet hole 2 and forms such an undercut cavity for the rivet 5. This is done in a known manner Insertion of the rivet wire, the length of which is such that when the linde am inner part of the flap sleeve stands up, it still protrudes a little bit from the flap sleeve. With the pressure that now follows, the smooth rivet wire compresses through the Quertitit: l formed cavity on, so that falling out is excluded and a firm connection between button pin 3 and flap sleeve i is created.

The procedure also applies to the one not shown in the drawing Pin pin or smooth pin, if such in connection with the purpose of saving wire is used with a loose button.

Claims (1)

PATENT CLAIM Method for connecting ligaments with their Pin by transverse rivets that pass through a rivet hole in the hinge into one of the Tenons and the hinge formed undercut cavity and inserted into this are riveted, characterized in that the undercut cavity by punching a transverse groove (q.) out of the pin (3) before inserting it into the Band (i) is made.