EP0262697A1 - Device to feed and position washers - Google Patents
Device to feed and position washers Download PDFInfo
- Publication number
- EP0262697A1 EP0262697A1 EP87201458A EP87201458A EP0262697A1 EP 0262697 A1 EP0262697 A1 EP 0262697A1 EP 87201458 A EP87201458 A EP 87201458A EP 87201458 A EP87201458 A EP 87201458A EP 0262697 A1 EP0262697 A1 EP 0262697A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pin
- washers
- chute
- foot
- hereinbefore
- 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
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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
Abstract
Description
- The present invention concerns a device to feed and position washers which is particularly suited to be fitted to systems performing the automatic or semi-automatic connection of rails to sleepers.
- To be more exact, the invention tends to provide a device for the feeding and positioning of washers which is suitable for employment in systems which secure rails to sleepers.
- Such washers are often suitably conformed spring washers which are placed between the clips and nuts so as to clamp the nuts when tightened, but the washers may also be conformed otherwise.
- The device of the invention is fitted correctly to machines which bolt rails as described and claimed in EP 143.477, EP 149.278 and EP 153.772 and to like and analogous machines.
- The device is also employed correctly where systems are being installed for use in machines bolting rails of the type indicated above.
- Many problems are entailed where rails are bolted with complex machines which arrange at least for the positioning and/or prior positioning of washers.
- A first problem lies in the fact that the washers have to be fed, one by one, to the neighbourhood of the bolts before being positioned on the bolts or on a unit performing prior installation or prior positioning.
- Another problem is that the washers may possess wide tolerances as regards their inner and outer diameters and their height. This involves great difficulties in the guides for the washers since it is not always possible to sort the sets of washers according to their tolerances.
- In particular, spring washers entail the problem that, when positioned next to each other, they tend to become caught on each other and therefore cannot be placed in a row and caused to slide along chutes or chute-type selectors since, when they touch each other, they may easily engage each other and become jammed.
- Moreover, the washers have to be free to be pre-positioned properly and therefore to be taken only when they are needed for correct postioning on a bolt or on a means which is to pre-position them.
- Furthermore, automatic or semi-automatic machines bolting rails to sleepers should logically deliver any washers not properly positioned or pre-positioned to the neighbourhood of the bolts with which they are to collaborate, the purpose of this being that the members of the inspection and test gang following the bolting machine will thus be able to find the washers readily and position them by hand.
- To obviate all these drawbacks and obtain a plurality of advantages, which will become clear in the following description, the present application has studied, tested and embodied the present invention.
- According to the invention the washers are positioned on their axis by being threaded from above on a pin and by being withdrawn from the lower end of the pin. This makes it necessary for the pin to be kept constantly suspended on a movable foot which is withdrawn momentarily.
- The washers can be threaded on the pin until they cover substantially the whole of its height.
- When a washer is to be withdrawn from the bottom of the pin, the penultimate washer is clamped temporarily by an appropriate gripper and thus supports the whole row of washers positioned above itself.
- When the gripper has clamped the penultimate washer, or simultaneously therewith, an appropriate toe is positioned against the lower end of the pin and supports the same. When the pin is supported by such toe, the foot is displaced and frees the bottom of the pin.
- This enables the lowest washer, which was positioned on the foot and not clamped by the gripper, to slide on the toe to the neighbourhood of a lower slide surface of a chute.
- When the lowest w asher has descended on the toe, the foot returns to its previous position and supports the pin anew, while the gripper opens and lets the stack of washers fall, thus positioning the lowest washer on the foot.
- With the foot now in position again, the toe descends and enables the washer resting on the lower surface of the chute to leave the toe and slide to the front part of the chute.
- At the lower end of the chute a retainer spring positions the washer correctly and enables a passing bolt to be aligned with the hole of the washer and to lift by a necessary amount the resiliently supported chute.
- According to the invention one device to feed and position washers is comprised for each clamping bolt (in a direction transverse to the railway line) tightened at substantially the same time by the machine described above.
- According to the invention the drive systems may be provided individually for each device included or may be provided to drive at least sets of two devices able to work on the respective bolts positioned transversely to the rail.
- The invention is therefore embodied with a device to feed and position washers for the connection of rails to sleepers, which is suitable to be fitted to machines or units delivering connecting and clamping components and/or to machines which bolt rails to sleepers, the device being able to deliver washers directly to bolts already installed at the sides of the rails, or to means carrying out such prior installation, or to means which pre-position connecting and clamping components, a chute being provided on which the washers can slide by gravity and which cooperates with the ends of the bolts or of means performing prior installation or pre-positioning, the device being characterized in that it comprises a free pin supported momentarily and alternately by a foot of a lever and by a toe of a lever, a gripper being provided to clamp at least the penultimate washer threaded on the pin, the lowest washer supported on the foot being free to slide axially downwards.
- The attached figures, which are given as a non-restrictive example, show the following:-
- Fig. 1 shows a preferred formulation of the device diagrammatically;
- Figs.2a and 2b show a preferred embodiment of the end portion of the chute.
- In the figures all the rotation pivots bear the
reference number 15 as they all perform substantially the same function. - To make the description of Fig.1 clearer, the drive systems of the various elements consist of
jacks 16, and for the sake of clarity the positioner supports bearing the jacks have not been shown but can be readily identified by any person skilled in the art. However, such drive systems could be embodied with other means such as cams, motors or other systems used for the purpose. -
Jacks 16 are thus the means most often used for drive systems for descriptive purposes but can be replaced with any mechanical equivalent which can be employed for the purpose. - A
pin 12 is supported normally on afoot 17 of a lever and rests thereon.Washers 11 are threaded vertically with their holes on thepin 12 and thus enfold the pin, the lowest washer resting on thefoot 17. - An
alignment element 13 is provided in the neighbourhood of the upper end of thepin 12 and serves to align the washers better with the pin and to keep thepin 12 properly aligned and upright, whether the stack ofwashers 11 reaches the height of thealignment element 13 or is lower. - The
foot 17 which supports the lower end of thepin 12 comprises at its front end aslot 18 having a width substantially smaller than the diameter of thepin 12 and is actuated by afirst lever 26, which in turn is actuated by afirst jack 16. - A connecting
rod 23 is pivoted on thefoot 17 and connects such foot to anejector 22 which is able to sweep along the end portion of achute 14, as we shall see l ater. - The
washers 11 threaded on thepin 12 are normally supported, together with the pin, on thefoot 17. When thelowest washer 11 is to be withdrawn, asecond jack 216 is actuated and acts on a pair of second levers 28-128, which in turn act on a gripper 27-127. - The gripper 27-127 clamps at least the
penultimate washer 11 on thepin 12 but leaves free the lowest washer positioned about the pin and resting on thefoot 17. - When the
second jack 216 has actuated the gripper 27-127, or substantially simultaneously therewith, athird jack 116 acts on athird lever 25, thus causing atoe 24 of that lever to rotate and be positioned in alignment with thepin 12, so that thepin 12 is now supported by thetoe 24 and no longer by thefoot 17. - When the
toe 24 is supporting thepin 12, thefirst lever 26 is actuated by thefirst jack 16 and retracts thefoot 17, thus freeing thepin 12 of any conditioning by thefoot 17. - Now that the lower end of the pin has been freed from the
foot 17, thelowest washer 11, which was resting on thefoot 17, slides on and about thetoe 24 until it rests about the edge of ahole 29 included in thesurface 32 of thechute 14. - When the
lowest washer 11 has slid until it touches thesurface 32 of thechute 14 and is positioned about thehole 29, thefoot 17 is moved once more below thepin 12 while the toe is retracted, thus allowing thepin 12 to rest again on thefoot 17. - The gripper 27-127 is the opened and therefore the whole stack of
washers 11 previously retained by the gripper 27-127 drops until thelowest washer 11 rests on thefoot 17, all the washers now being correctly positioned for the next step. - When the
toe 24 is retracted from thehole 29, thewasher 11 which had been threaded on thattoe 24 is left free to slide on thesurface 32 of thechute 14 until it reaches the lower front portion of the chute. - In the front portion of the chute the
washer 11 is held by a momentary retaining means orspring 31, which positions the washer in relation to alower slot 30. - When the feeder device in its forward movement encounters a
bolt 35, on which aclip 34 is already installed to clamp therail 33 to a sleeper, the chute 14 (Fig.2b) is lifted slightly by the head of thebolt 35. - The head of the
bolt 35 slides for a short tract against the outside of the bottom of thechute 14, being guided bylateral guides 37, and when it reaches the frontlower slot 30 of thechute 14, it meets the hole in thewasher 11 and introduces itself therein, while thechute 14 rises again and takes up its normal vertical position. - While the device travels along its normal path, a
washer 11 which is positioned exactly on abolt 35 is withdrawn from the device and stays positioned on thatbolt 35. - If for any reason a
washer 11 has been unable to detach itself from the retainingspring 31 since abolt 35 has not been introduced properly into it or has not been introduced at all and the washer has therefore stayed on thesurface 32 of thechute 14, the connectingrod 23 acts, with the next actuation of thefoot 17, on theejector 22, which is inserted into anupper slit 36 of the chute (Fig.2b) and discharges thewasher 11 by making it fall in the neighbourhood of thebolt 35. - Thus the inspection and test gang which next passes along the line will find the
washer 11 in the neighbourhood of itsrespective bolt 35. - The
chute 14 is supported resiliently by atie rod 21 andspring 19, or other suitable means, which presses against astationary abutment 20. This enables thechute 14 to discharge onto thebolt 25 only a limited part of its weight, the remainder being withstood by thespring 19. Thechute 14 is thus able to oscillate on itspivot 15 without excessive stresses.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87201458T ATE60635T1 (en) | 1986-09-22 | 1987-07-31 | DEVICE FOR CONVEYING AND ADJUSTING DISCS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8341286 | 1986-09-22 | ||
IT83412/86A IT1201814B (en) | 1986-09-22 | 1986-09-22 | ROSETTE POSITIONER FEEDER DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0262697A1 true EP0262697A1 (en) | 1988-04-06 |
EP0262697B1 EP0262697B1 (en) | 1991-01-30 |
Family
ID=11321509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87201458A Expired - Lifetime EP0262697B1 (en) | 1986-09-22 | 1987-07-31 | Device to feed and position washers |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0262697B1 (en) |
AT (1) | ATE60635T1 (en) |
DE (1) | DE3767819D1 (en) |
IT (1) | IT1201814B (en) |
ZA (1) | ZA875824B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104963250A (en) * | 2015-07-02 | 2015-10-07 | 常州市瑞泰工程机械有限公司 | Sleeper recycling device and sleeper recycling method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1181815A (en) * | 1966-04-26 | 1970-02-18 | Telemecanique Electrique | Means for Feeding Components |
FR2196219A1 (en) * | 1972-08-16 | 1974-03-15 | Weltpat Anstalt | |
EP0149278A2 (en) * | 1984-01-11 | 1985-07-24 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Improvements to platelayer waggons for rails |
-
1986
- 1986-09-22 IT IT83412/86A patent/IT1201814B/en active
-
1987
- 1987-07-31 EP EP87201458A patent/EP0262697B1/en not_active Expired - Lifetime
- 1987-07-31 AT AT87201458T patent/ATE60635T1/en not_active IP Right Cessation
- 1987-07-31 DE DE8787201458T patent/DE3767819D1/en not_active Expired - Fee Related
- 1987-08-06 ZA ZA875824A patent/ZA875824B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1181815A (en) * | 1966-04-26 | 1970-02-18 | Telemecanique Electrique | Means for Feeding Components |
FR2196219A1 (en) * | 1972-08-16 | 1974-03-15 | Weltpat Anstalt | |
EP0149278A2 (en) * | 1984-01-11 | 1985-07-24 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Improvements to platelayer waggons for rails |
Also Published As
Publication number | Publication date |
---|---|
DE3767819D1 (en) | 1991-03-07 |
ATE60635T1 (en) | 1991-02-15 |
IT8683412A0 (en) | 1986-09-22 |
ZA875824B (en) | 1988-02-23 |
EP0262697B1 (en) | 1991-01-30 |
IT1201814B (en) | 1989-02-02 |
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