EP0262701A1 - Device to feed and position bolts for the coupling of rails to sleepers - Google Patents
Device to feed and position bolts for the coupling of rails to sleepers Download PDFInfo
- Publication number
- EP0262701A1 EP0262701A1 EP87201598A EP87201598A EP0262701A1 EP 0262701 A1 EP0262701 A1 EP 0262701A1 EP 87201598 A EP87201598 A EP 87201598A EP 87201598 A EP87201598 A EP 87201598A EP 0262701 A1 EP0262701 A1 EP 0262701A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bolt
- conduit
- bolts
- clamping unit
- rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/24—Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means
Definitions
- a roller 39 is comprised in stationary cooperation with the conduit 43 and is able to run on the lengthwise cam 33, which, as we said, is anchored to the frame 16 of the machine and which conditions the position of the bolt head 134 crosswise to the rail 11 and in relation to the seating 114 included in the bolt lodgement 14.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Processing Of Terminals (AREA)
- Reinforcement Elements For Buildings (AREA)
- Threshing Machine Elements (AREA)
Abstract
Description
- The present invention concerns a device to feed and position bolts for the coupling of rails to sleepers. Such coupling may be performed automatically or semi-automatically.
- To be more exact, the invention tends to provide a device suitable to feed at a required rate and to position in appropriate lodgements the bolts to be employed to fix the rails to the sleepers.
- Such device is applied correctly to machines which bolt rails and are of the type described and claims in EP 143477, EP 149278 and EP 153772 and also to like and analogous machines.
- Many problems are entailed when rails are bolted to sleepers by complex machines which provide at least for the positioning, or prior positioning, or prior arrangement of the bolts and/or other elements employed to couple the rails to the sleepers.
- A first problem is the feeding of the bolts at a required rate and their correct positioning in appropriate lodgements.
- Another problem consists in ensuring a high degree of feasibility of the operation, so that there will be as few situations as possible, or rather no situations, where the bolt is not pre-positioned.
- Moreover, there exists the problem of positioning correctly the device which serves to feed and position the bolts in relation to the seating comprised in the lodgement of the bolt.
- A further problem is that the bolts are normally fed and positioned in tandem so as to serve the same plate placed astride the rail and anchored to the sleeper.
- These problems are encountered either with the rather wide tolerances of the bolts or with the rather wide tolerances of the seatings included for the bolts in the bolt lodgements.
- Moreover, such problems are encountered with the rather wide vertical and crosswise tolerances of the positioning of such lodgements in relation to the rail and the traversing means of the machine.
- US 4,131,067 discloses a device to position, deliver and drive spikes to secure the rails. This device comprises spike setter means cooperating with a stationary conduit delivering the spikes, such spike setter means and conduit being supported by a vertically movable frame.
- To overcome such shortcomings and provide the many advantages which will become clear in the following description, the present applicant has studied, tested and embodied the device of this invention.
- As will be shown hereinafter, the device serves for the bolts arranged on a plate placed astride a rail but can be used also to feed and position one bolt at a time or may be duplicated to feed all four bolts which couple two rails to one single sleeper.
- According to the invention the device may serve to position the bolts directly as in EP 143477 or may cooperate with the means preparing or pre-arranging pre-positioned sets of components as in EP 149278, or with like or analogous units.
- According to the invention an appropriate conduit which delivers bolts at its end is interrupted by a feeder means which lets only one bolt pass at a time. This feeder means collaborates immediately downstream of itself with a clamp able to grip the positioned bolt and to keep the head of the bolt free of any further conditioning.
- According to the invention the element which clamps the shank of the bolt is enabled to pass in front of an appro priate seating comprised in the bolt lodgement and to thrust towards that seating in a required manner. The purpose of this is to facilitate insertion of the bolt into the appropriate seating in the lodgement for the bolt.
- According to the invention the bolt previously positioned in the device can be made to pass several times in front of the bolt lodgement and be always thrust against its sea ting in a coordinated manner so as to reduce to a minimum the number of times when the bolt does not enter the pre-arranged seating.
- The whole assemblage is supported on a frame which makes possible two positions, one for movement along the rails and the other for work, so that there will be no contact with the bolt lodgements present nor with bolts already fitted by the device itself.
- The invention provides also a positioner lever which, with a suitable sensor, warns the device that it is correctly positioned in relation to the sleeper and therefore to the lodgement for the bolt.
- Such sensor therefore serves to indicate by a signal the moment when the device of the invention is suitably positioned to place the bolt correctly.
- The invention is therefore embodied according to the contents of Claim 1 and the dependent claims.
- The attached figures, which are given as a non-restrictive example, show the following:
- Fig.1 shows a side working view of a device according to the invention;
- Fig.2 shows a three-dimensional diagrammatic view,from which many elements are omitted, of the embodiment of Fig.1;
- Fig.3 shows a detail of the embodiment of Fig.1;
- Figs. 4 and 5 show further details of the embodiment of Fig.1.
- All the rotation pivots in the figures bear the
reference number 28 as they all perform the same function. We shall describe hereinafter a possible working cycle, but different working cycles can be obtained with the invention. - In the figures a
rail 11 rests on aplate 13, which comprises on each side of therail 11 anappropriate lodgement 14 for a bolt and is secured to asleeper 12. - Fixture of the
plate 13 to thesleeper 12 takes place in a known manner and the plate is thus fixed prior to the installation of the sleeper. - A
lodgement 14 for a bolt comprises aseating 114 to hold thehead 134 of thebolt 34. -
Wheels 22 of a machine applying the bolts or another analogous machine run along therail 11, such machine being represented in the figures partially by means of aframe 16 of the machine. - In the most up-to-date art
such frame 16 normally moves continuously but could work with an alternate stop-go movement, being halted at eachsleeper 12 and then starting again when work there has been completed. - We shall describe hereinafter, as an example, the situation in which the machine moves continuously while the
device 10 which feeds and positions the bolts is momentarily braked and slowed down so as to enable thehead 134 of thebolt 34 to be positioned in thebolt lodgement 14. - The
bolt 34 is contained in aconduit 43, whither it arrives through the conduit portions 243-143, and is fed substantially continuously by delivery means, such as those described, for instance, in EP 143477, or by other means which can be employed for this purpose. - Thus a plurality of
bolts 34 is located within theconduit 43, substantially on the same axis as each other and substantially one above another, such bolts having theirheads 134 facing downwards and their threaded shanks facing upwards. - Owing to the size of the section of the
conduit 43 the head of thebolt 134 rests on the threaded shank of the neighbouring bolt below 34, notwithstanding the orientation it may have taken up within the limits permitted by the inner dimensions of theconduit 43. - The
conduit 43 together with theconduit portion 143 is supported by amovable framework 25 and can oscillate lengthwise to the rail since it is pivoted at 28. - The
movable framework 25 is borne by theframe 16 of the machine and moves lengthwise therewith but can move vertically in relation to theframe 16. - A
feeder 42 comprising two shutters 41-45 is located at the lower end of theconduit 43.Such feeder 42 generically can rotate partially about its own axis owing to the displacement of aroller 40 of alever 44 running on anopposing cam 36, such lever being attached to the feeder. - The
feeder 42 is returned to its closed position by the pressure exerted by a spring 46 (please see Figs.4a and 4b). - When a positioner lever 31, which can rotate on a
pivot 28 and bears asensor 32, indicates the presence of abolt lodgement 14 not containing abolt 34, abrake 15 is applied by ajack 17 acting on alever 18 and clampingbrake shoes 21 against the sides of therail 11. - As the
frame 16 of the machine continues its movement in the direction of thearrow 51, with theshoes 21 of thebrake 15 clamped to the sides of therail 11, asleeve 20 solidly fixed to the shoe-actuation lever 18 runs along aguide 19 integrally fixed to theframe 16 of the machine. - A connecting
rod 24 anchored terminally to thebrake 15 and halted therewith determines the lower terminal position of theconduit 43 in relation to thebrake 15. - A
spring 23 to cause resilient return of theconduit 43 is located on the connectingrod 24. - When the
jack 17 of thebrake unit 15 is actuated, theframe 16 of the machine continues its forward movement and theconduit 43 becomes distanced from a position of cooperation with astationery positioner element 35. - When the
conduit 43 is cooperating with thestationary positioner element 35, thelever 44 attached to theconduit 43 is pressed against theopposing cam 36, as is shown in Fig.4a. - The limit position which the
conduit 43 takes up in relation to theopposing cam 36 is conditioned by atravel regulation screw 37. - When the
lever 44 is pressed against thecam 36, anupper shutter 45 leaves the bore of theconduit 43 free and thus enables abolt 34 located above thatshutter 45 hitherto to fall and rest on alower shutter 41, which at that moment closes the bore of theconduit 43, as shown in Fig.4b. - When the
conduit 43 is distanced from theopposing cam 36 owing to the action of thebrake 15, it frees thelever 44 from the conditioning exerted by theopposing cam 36 and enables thespring 46 to rotate thefeeder 42 so as to be closed by theupper shutter 45. - When the
lever 44 of thefeeder 42 is freed of the conditioning by thecam 36, thehead 134 of thebolt 34 lying above the bolt now resting on thelower shutter 41 is intercepted by theupper shutter 45; in the meantime thebolt 34 freed by thelower shutter 41 is now able to drop further within theconduit 43 and rests on thestationary positioner element 35. - As soon as the
head 134 ofsuch bolt 34 is located on thestationary positioner element 35, aclamping unit 52 intervenes, ajack 38 of that unit being actuated and agripper 48 clamping the threaded portion of thebolt 34 against an abutment. - Such clamping action keeps the
head 134 and a part of the shank of thebolt 34 positioned correctly outside theclamping unit 52 and free to cooperate with theseating 114 of thebolt lodgement 14. - When the
bolt 34 is positioned correctly in theclamping unit 52 outside thedevice 10 and theconduit 43 is no longer cooperating with thestationary positioner element 35, ajack 127 acts against themovable framework 25 and makes it slide vertically on aguide 26 until anabutment 29 presses against anopposing lever 30, which is pivoted on thepositioner lever 31. - The
abutment 29 andopposing lever 30 have the task of controlling the lengthwise position of thedevice 10 in relation to therail 11 during insertion of thebolt 34 into its seating. - The fact that the
opposing lever 30 is pivoted on thepositioner lever 31 has the effect that, if the brake has not acted properly and/or the positioner lever indicates that thebolt lodgement 14 is still below the positioner lever, themovable framework 25 cannot descend so far as to enable thehead 134 of thebolt 34 to contac t theseating 114 in thebolt lodgement 14. - If instead the
positioner lever 31 has descended correctly and thus shows that it has passed thebolt lodgement 14, themovable framework 25 descends until theabutment 29 presses against theopposing lever 30. In this case thehead 134 of thebolt 34 jutting from theclamping unit 52 and theseating 114 in thebolt lodgement 14 can cooperate exactly for their reciprocal positioning. - The exact cooperation of the
head 134 of thebolt 34 with theseating 114 in thebolt lodgement 14 in a vertical direction depends on the fact that theabutment 29 rests against theopposing lever 30. - In such a condition, with the movement of a
lengthwise cam 33 that moves together with theframe 16 of the machine to which it is solidly fixed, theclamping unit 52 is displaced and positions thehead 134 of the bolt in theseating 114. If such positioning is successful, the clampingunit 52 opens and frees the bolt. - If such positioning is unsuccessful, the
head 134 of the bolt is passed one or more times before theseating 114 and at the same time is thrust towards it. - A
roller 39 is comprised in stationary cooperation with theconduit 43 and is able to run on thelengthwise cam 33, which, as we said, is anchored to theframe 16 of the machine and which conditions the position of thebolt head 134 crosswise to therail 11 and in relation to theseating 114 included in thebolt lodgement 14. - Owing to the lengthwise conformation of the
cam 33, when the axis of theconduit 43 lies substantially in the neighbourhood of the vertical axis of theseating 114 in thebolt lodgement 14, thehead 134 of the 34 is enabled to enter fully theseating 114 in thebolt lodgement 14, the vertical position of the head being determined by the cooperation of theabutment 29 with the top of the opposinglever 30. - The inclusion of a
return spring 49 positioned crosswise to the rail between twoparallel conduits 43 cooperating with thebolt lodgements 14 in one and thesame plate 13 causes therollers 39 cooperating with each of thetwin conduits 43 to cooperate properly in a lengthwise direction to the rail with their respectivelengthwise cams 33. - According to the invention the presence of the
return spring 49 compels thetwin conduits 43 to move in a synchronized manner. - The invention provides also for a variant in which means are included to exert a pulling action towards the
rail 11 in independent cooperation with theconduits 43, thus permitting an independent movement, which may also be repeated in different manners, of thetwin conduits 43. - If the
head 134 of abolt 34 passing before theseating 114 in abolt lodgement 14 does not enter such seating, theconduit 43 is caused to oscillate again and to take theclamping unit 52, and therewith thebolt head 134 protruding therefrom, before thelodgement 14 once more. - The
bolt 34 is thus brought before theseating 114 of thelodgement 14 in a lengthwise direction by means of thejack 27 and in a crosswise direction by the positioning action of thereturn spring 49 and by the simultaneous cooperation of theroller 39 on thelengthwise cam 33. - Such movement in one direction and/or the other can be repeated again and enables the device of the invention to position a great percentage of bolt heads 134 automatically within the
seating 114 in thebolt lodgements 14. - So as to be able to oscillate in the required direction, the conduit 43-143 is supported so as to be able to oscillate on its upper end on an
axis 50 substantially normal to the plane of the development of therail 11, whereas at an intermediate position it possesses anaxis 150 of oscillation substantially parallel to the axis of the development of therail 11. - A
guide shaft 26 is supported by astationary frame 116 of the machine and comprises supports able to bear and position themovable fra mework 25 correctly. - A
jack 127 acts on asuitable cross member 125 that connects in this instance the twomovable frameworks 25 bearing theconduits 43 cooperating with the two coordinatedbolt lodgements 14 comprised at the two sides of therail 11 and supported on thesame plate 13. - Departure of the
bolt 34 from the clampingunit 52 can be conditioned by a movable cover 47 (Figs.3 and 5). - If the
device 10 is unable to place thehead 134 of abolt 34 in aseating 114, before unclamping thebrake 15 or in cooperation with the unclamping action the clampingunit 52 frees thebolt 34 clamped thereby hitherto and lets it drop in the neighbourhood of asleeper 12. - The sequences described above can be varied as required since the correct positioning of the
head 134 of thebolt 34 in theseating 114 and the content of the following claims are substantially the purposes of this invention.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87201598T ATE59417T1 (en) | 1986-09-22 | 1987-08-24 | DEVICE FOR PROMOTING AND ADJUSTING BOLT FOR FIXING RAILS ON SLEEPERS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8340986 | 1986-09-22 | ||
IT83409/86A IT1201811B (en) | 1986-09-22 | 1986-09-22 | SCREW FEEDER-POSITIONER DEVICE FOR CROSS-RAIL CONNECTIONS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0262701A1 true EP0262701A1 (en) | 1988-04-06 |
EP0262701B1 EP0262701B1 (en) | 1990-12-27 |
Family
ID=11321459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87201598A Expired - Lifetime EP0262701B1 (en) | 1986-09-22 | 1987-08-24 | Device to feed and position bolts for the coupling of rails to sleepers |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0262701B1 (en) |
AT (1) | ATE59417T1 (en) |
DE (1) | DE3767108D1 (en) |
IT (1) | IT1201811B (en) |
ZA (1) | ZA876323B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018050917A1 (en) * | 2016-09-19 | 2018-03-22 | Schwihag Ag | Gripping mechanism for spindle-screw clipping machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4131067A (en) * | 1977-03-21 | 1978-12-26 | Canron Railgroup | Spike driver |
EP0143477A1 (en) * | 1983-10-31 | 1985-06-05 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Platelayer waggon for rails |
-
1986
- 1986-09-22 IT IT83409/86A patent/IT1201811B/en active
-
1987
- 1987-08-24 AT AT87201598T patent/ATE59417T1/en not_active IP Right Cessation
- 1987-08-24 DE DE8787201598T patent/DE3767108D1/en not_active Expired - Fee Related
- 1987-08-24 EP EP87201598A patent/EP0262701B1/en not_active Expired - Lifetime
- 1987-08-25 ZA ZA876323A patent/ZA876323B/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4131067A (en) * | 1977-03-21 | 1978-12-26 | Canron Railgroup | Spike driver |
EP0143477A1 (en) * | 1983-10-31 | 1985-06-05 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Platelayer waggon for rails |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018050917A1 (en) * | 2016-09-19 | 2018-03-22 | Schwihag Ag | Gripping mechanism for spindle-screw clipping machine |
US11293145B2 (en) | 2016-09-19 | 2022-04-05 | Schwihag Ag | Gripping mechanism for spindle-screw clipping machine |
Also Published As
Publication number | Publication date |
---|---|
ATE59417T1 (en) | 1991-01-15 |
ZA876323B (en) | 1988-03-02 |
EP0262701B1 (en) | 1990-12-27 |
IT1201811B (en) | 1989-02-02 |
DE3767108D1 (en) | 1991-02-07 |
IT8683409A0 (en) | 1986-09-22 |
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