CN1304696C

CN1304696C - Railway rail fastening clip

Info

Publication number: CN1304696C
Application number: CNB038094843A
Authority: CN
Inventors: B·马歇尔; M·索默塞特
Original assignee: Ralph McKay Ltd
Current assignee: Ralph McKay Ltd; Pandrol Ltd
Priority date: 2002-04-30
Filing date: 2003-04-04
Publication date: 2007-03-14
Anticipated expiration: 2023-04-04
Also published as: BR0309538A; DE60312313D1; EP1499777A1; AU2003226532A1; AR039503A1; WO2003093580A1; GB2388141B; GB0209867D0; GB2388141A; MY131242A; UY27782A1; EP1499777B1; DE60312313T2; PE20031043A1; BR0309538B1; ECSP045398A; CN1650070A

Abstract

The clip (9) comprises firstly a substantially straight first portion (1), then a bent second portion (2), then a substantially straight third portion (3) the axis of which makes an angle substantially more than 45{ with the axis of the first portion (1), the two axes lying in the same plane as one another, then a fourth portion (4) which is a reverse bend, then a fifth portion (5), then a sixth portion (6) which is another reverse bend and finally a seventh portion (7), the first portion (1) being formed so as to comprise a region (1B) having a generally cylindrical surface extending along its entire length and a longitudinally-extending part (1A) having a surface which is less convex, e.g flat or concave, than the surface region (1B). At least part of the second portion (2) and at least part of the third portion (3) are preferably manufactured with substantially flat surfaces (2A, 3A) on respective lateral regions thereof which contact the rail when the clip (9) is in use.

Description

The railroad rail anchorage clip

Technical field

The present invention relates to a kind of railroad rail anchorage clip.

Background technology

In GB 2199875B, its disclosure is included in herein as a reference.In this application, the applicant discloses a kind of elasticity railroad rail anchorage clip 90, as shown in Fig. 1 and Fig. 2 of accompanying drawing.A kind of metal bar of anchorage clip 90 usefulness is made, and described metal bar is so crooked, promptly along metal bar from its end to end, at first having one is straight first 10 basically; Be the second portion 20 of a bending then; Be one to be straight third part 30 basically then, the axis of the axis of described third part 30 and first 10 forms one basically greater than 45 ° angle, and above-mentioned two axis are arranged in same plane; Be the 4th a crooked in the other direction part 40 then; Be one the 5th part 50 then; Be another the 6th crooked in the other direction part 60 then; Be one the 7th part 70 at last, described the 7th part 70 forms the toe of anchorage clip 90.When observing from the top, it seems that the 5th part 50 and the 7th part 70 be on the opposite side of third part 30.

In use, anchorage clip 90 is placed on the sleeper 100 and the 7th part 70 is placed on the footing 120 of a rail 110, first 10 stretches in the circular blind hole 140 of sleeper 100, and a screw spike 130 inserts in the sleeper 100 between third part 30 and the 5th part 50.Make anchorage clip 90 remain on the appropriate location by this way, in described appropriate location, the toe 70 of anchorage clip 90 is pressed against on the rail foot 120, so that unclipped railway lines 110, and the second portion 20 that makes anchorage clip 90 and the side direction of third part 30 partly contact the edge of rail foot 120, remain unchanged so that guarantee gauge, promptly so that prevent rail 110 shifted laterallys.

The applicant has realized that now and can improve this anchorage clip 90.

Hole 140 in the sleeper 100 that first 10 inserts wherein must be bored greatlyyer slightly (for example than the diameter of first 10, diameter with 15mm holds the first 10 that diameter is 14mm), so that avoid so-called " atmospheric pressure effect (pneumatic effect) ", make first 10 enter blind hole 140 and when separating de-stress operating period at mill train when taking out the first 10 of anchorage clip 90 from hole 140, above-mentioned " atmospheric pressure effect " may cause difficulty.Yet the ideal situation of first 10 is more closely to be assemblied in the hole 140, so that the shifted laterally of control rail foot 120.

Summary of the invention

According to one embodiment of the present of invention, a kind of elasticity railroad rail anchorage clip is provided, anchorage clip is a kind of metal bar, described metal bar is so crooked, promptly along metal bar from its end to end, at first having one is straight first basically; Be the second portion of a bending then; Be one to be straight third part basically then, the axis of described third part and the straight line of first form one basically greater than 45 ° angle, and above-mentioned two axis are arranged in same plane; Be the 4th a crooked in the other direction part then; Be one the 5th part then; Be another the 6th crooked in the other direction part then; Be one the 7th part at last; Such structural form can make anchorage clip be placed in an ad-hoc location, so that third part be level and first extend downwards, and the 5th part and the 7th part be positioned at the opposite side of third part, this anchorage clip is characterised in that: first is configured as and comprises that one has one along the zone on the cylindrical substantially surface that its whole length is extended with along the part of described first longitudinal extension, and above-mentioned longitudinal extension partly has the surface than the less protrusion in cylindrical substantially surface of first.

The air pressure resistance has been got rid of by the first that makes anchorage clip like this, and the first of anchorage clip more easily can be inserted in the blind hole of sleeper and take out from this blind hole.

Preferably, the surface of longitudinal extension part is flat basically.

Alternatively, the surface of longitudinal extension part is recessed into.

Usually, the rod of formation anchorage clip has rounded substantially cross section.Be pressed against on the rail edge to prevent that track side is when mobile, therefore second of prior art anchorage clip only forms line with the planar edge of rail with third part and contacts, the consequently high and generation wearing and tearing too early of contact pressure, form a flat in these zones on anchorage clip simultaneously, and therefore cause some small gauges to broaden.

Therefore, preferably, in using a kind of anchorage clip of the present invention, at least a portion of second portion and at least a portion of third part are so made, promptly on the surface that has the substantially flat that contacts with rail on its side zones separately when using anchorage clip.

Therefore, the flat surfaces and the contact pressure between the rail edge of anchorage clip second and third part are much smaller, have significantly reduced the wearing and tearing on these zones of anchorage clip.

It is desirable to, second portion be smooth surface basically with third part be that smooth surface is connected basically.

When the longitudinal extension of first partly has one is smooth when surperficial basically, this surface preferably with second portion be that smooth surface is connected basically.

Description of drawings

As example, describe now with reference to accompanying drawing, wherein:

Fig. 1 and Fig. 2 (top be described) illustrate a kind of prior art railroad rail fastening assembly;

Fig. 3 to Fig. 7 illustrates phantom drawing, vertical view, lateral view, front elevation drawing and the rear elevation of implementing a kind of elasticity railroad rail anchorage clip of the present invention;

Fig. 8 illustrates the phantom drawing of the partial cut-out of a part that comprises the railroad rail fastening assembly of implementing a kind of anchorage clip of the present invention;

Fig. 9 (A)-Fig. 9 (D) is used to illustrate the view of making the method for implementing a kind of anchorage clip of the present invention; And

Figure 10 illustrates another kind of alternative enforcement anchorage clip of the present invention.

The specific embodiment

As shown in Fig. 3 to Fig. 9, implementing a kind of railroad rail anchorage clip 9 of the present invention is made by a kind of like this metal bar, i.e. other end B from an end A of rod to rod comprises that one is that the second portion 2, of straight first 1, a bending is that the 4th part 4, one the 5th part 5 of straight third part 3, a bending, the 6th part 6 and of a bending form the 7th part 7 of anchorage clip 9 toes basically basically.The longitudinal axis of first 1 and third part 3 is arranged in same plane, and the axis shape of the axis of third part 3 and first 1 at an angle.It is 90 ° that angle [alpha] is shown in this embodiment, but α can be basically greater than any angle of 45 °.

As in the prior art, keep anchorage clip 9 like this, so that the anchorage clip toe is pressed against on the rail foot 12 by a screw spike 13 that is screwed in the sleeper 15, the ailhead of this screw spike 13 is pressed against on the third part 3 and the 5th part 5 of anchorage clip.

Anchorage clip 9 is so made, promptly form a zone and the longitudinal extension part 1A with a general cylindrical surperficial 1B who extends along its whole length in first 1, above-mentioned longitudinal extension part 1A has the surface than the less protrusion of general cylindrical surf zone 1B.The spiral section of sleeper is not convenient to anchorage clip 9 is screwed in first 1.In this embodiment, the longitudinal extension part branch comprises a plane 1A.Anchorage clip 9 also is fabricated in the present embodiment to have a plane 2A and have a plane 3A on third part 3 on the second portion 2,

plane

2A and 3A are positioned on the side regions at the edge that contacts rail foot 12 separately of second portion 2 and third part 3.For the ease of making, plane 1A is connected with plane 2A, and next plane 2A is connected with plane 3A.But this is optional.

Plane 1A in the first 1 is used for avoiding when first 1 inserts in the identical rather than big slightly blind hole 14 of a diameter in the sleeper 15 the air pressure resistance with generation, thereby first 1 is more closely cooperated, and therefore stop the shifted laterally of rail foot 12 in hole 14.As shown in Figure 10, plane 1A can be replaced by the groove 1C that forms in first 1, so that reach same purpose, but is easily manufactured, preferably wish anchorage clip with

plane

2A, 3A the same side on have a plane 1A.

Preformed

plane

2A, 3A on anchorage clip 9 second portions 2 and the third part 3 are used to prevent that gauge from broadening, and the cross section of these parts is circular and grinds a plane on these zones else if, gauge then can take place in these zones broaden.These preformed planes also can advantageously be applicable to the rail clip of on its downward supporting leg neither one plane or groove.

A kind of anchorage clip 9 with

plane

1A, 2A and 3A can be made to the method shown in Fig. 9 (D) with Fig. 9 (A).In Fig. 9 (A), a kind of shape that prebends is flatly supported, and

plane

1A, 2A and 3A form by being extruded along the arrow A direction.Vertical support portion is divided the anchorage clip (Fig. 9 (B)) of moulding then, and with a power in the direction of arrow B (Fig. 9 (C)) be applied on the part of the 7th part 7 to be formed, so that this part is bent to its net shape, thereby form a kind of enforcement anchorage clip of the present invention (Fig. 9 (D)).

To shown in Figure 7, the size of implementing a kind of typical anchorage clip of the present invention is as follows: l=143mm, w=76mm, a=75mm as Fig. 4 in the accompanying drawing, b=97mm, c=46mm, Φ d=14mm, e=30mm, f=45mm, g=13mm, r1=8mm, r2=12.5mm and α=90 °.

Claims

1, a kind of elasticity railroad rail anchorage clip (9), this anchorage clip (9) is a kind of metal bar, described metal bar is so crooked, promptly along rod from its end to end, at first have first (1) always; Be the second portion (2) of a bending then; Be third part (3) always then, the axis of the axis of described third part (3) and first (1) forms one greater than 45 ° angle, and these two axis are arranged in same plane; Be crooked in the other direction the 4th part (4) then; Be one the 5th part (5) then; Be another crooked in the other direction the 6th part (6) then; Be one the 7th part (7) at last, such structural form makes it can make anchorage clip (9) be placed on an ad-hoc location, so that third part (3) be level and first (1) extend downwards, and the 5th part (5) and the 7th part (7) be positioned on the opposite side of third part (3), this anchorage clip is characterised in that: first (1) so forms, and comprises that promptly one has one along the zone (1B) on the cylindrical substantially surface that its whole length is extended with along the part (1A of described first (1) longitudinal extension; 1C), above-mentioned longitudinal extension part (1A; 1C) has a surface than the less protrusion of general cylindrical surf zone (1B) of first (1).

2, a kind of anchorage clip as claimed in claim 1 is characterized in that, the surface of longitudinal extension part (1A) is flat.

3, a kind of anchorage clip as claimed in claim 1 is characterized in that, the surface of longitudinal extension part (1C) is recessed into.

4, a kind of anchorage clip as claimed in claim 1, it is characterized in that, described rod is except locating at least a portion (2A) of second portion (2) and at least a portion (3A) of third part (3) is located, has circular cross section, above-mentioned second portion (2) and third part (3) are so made, promptly on the flat surface that has contact rail when using anchorage clip (9) on their side zones separately (2A, 3A).

5, a kind of anchorage clip as claimed in claim 4 is characterized in that, the flat surface (2A) of second portion (2) is an adjacency with the flat surface (3A) of third part (3).

6, a kind of anchorage clip as claimed in claim 2, it is characterized in that, described rod is except locating at least a portion (2A) of second portion (2) and at least a portion (3A) of third part (3) is located, has circular cross section, above-mentioned second portion (2) and third part (3) are so made, promptly on the flat surface that has contact rail when using anchorage clip (9) on their side zones separately (2A, 3A).

7, a kind of anchorage clip as claimed in claim 6 is characterized in that, the flat surface (2A) of second portion (2) is an adjacency with the flat surface (3A) of third part (3).

8, a kind ofly it is characterized in that the flat surface (1A) of first (1) is an adjacency with the flat surface (2A) of second portion (2) as claim 6 or 7 described anchorage clips.