NL7807736A - Double C=section spring rail clip - has flats on free middle portions which bear against rail - Google Patents

Abstract

The double-C-section spring rail clip has arms of circular section, and there are one or more flats machined on the free middle portions of the Cs, typically those bearing against the rail (1). The free ends of the Cs can be of square section, and the flats can be machined when the clip is cold, after it has been shaped. The design is cheap to produce, since round bar can be used, and avoids local stress concentration.

Description

I.

V '4 ^ \ j D Ho / Se / 12: Everts en van der Weyden Exploitatie Maatschappij Ewem H.V. in Helmond.

, Rail clamp and method for its manufacture.

The invention relates to a double C-shaped resilient 1 rail clamp and a method for the manufacture thereof. The; ; double C-shaped resilient rail clamp is generally known. Bee ; In use, the rail clamp, the part i connecting the Cs, comes to lie in a holder, while the free end parts of the; | Cs bear resiliently against the rail. Until now, such rail clamps have been made of approximately square or rectangular rod material in cross section. Such material is expensive,; while at the corner points of the cross-sectional shape, too! ning concentrations occur, which is under certain business; circumstances may be an objection. j

The object of the invention is to provide a solution for these problems. This is achieved because the cross section of the the rail clamp must be chosen approximately circular and; ; the free end portions of the Cs have at least one flattened surface; shows. Round bar material Is relatively cheap. Admittedly | an additional machining is required to provide the free end parts of the Cs with a flattened surface, but these perform! ting can be done in the cold state of the clamp. : | At least on the part of clamp -1 lying against the rail, the end parts must be flattened. However, it is also possible to flatten the end parts on all sides, so that a cross-sectional square shape is obtained. ;

The invention will be elucidated on the basis of the drawings.

r *} 7807736 - 2-r »- ----- -------—— 1 -------— i j j

In the drawings shows:

Figure 1 shows a perspective view of a double i 'C-shaped resilient rail clamp according to the invention with one flattened surface on the (free end parts of the Cs (see the section according to Fig. 2), which is against the rail 1 (see the perspective view of the mounted clamp according to fig. 3) is lost. Fig. 4 shows in perspective view the rail clamp according to the invention, the end parts of the Cs of which are flattened on four sides, such that the square cross section is obtained as shown in Fig. 5. ji Figure 6 shows the mounting of the rail clamp on an · S rail. For clarity, parts of the C's have been omitted * j The flattened end parts of the C's are included in a slot provided for this purpose in the holder 2. i

i I

i i! ·! i

; I

: i * j i i j i i I! '! i! ! <i i i i; i i k; I * 1 1; 780 7 7 36 [

Claims (2)

1. Double C-shaped, resilient rail clamp, characterized in that the cross-section of the legs of the rail clamp is approximately circular and the free means of the C's are at least one. flat face. Rail clamp according to claim 1, characterized in that; I '! the flattened surface is mounted on the rail part. Rail clamp according to claim 1, characterized in that the free end part of the C's is square in cross section. ! ; A method for manufacturing a rail clamp according to claims 1-4, characterized in that after forming; the rail clamp the free end parts of the Cs when cold | smoothed. i; ! i. J i. | i! ! L i; I, 1 \ j '; ]. I l i 780 77 3 6