US3906864A - Coupling means for circuit conveyor - Google Patents

Coupling means for circuit conveyor Download PDF

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Publication number
US3906864A
US3906864A US424377A US42437773A US3906864A US 3906864 A US3906864 A US 3906864A US 424377 A US424377 A US 424377A US 42437773 A US42437773 A US 42437773A US 3906864 A US3906864 A US 3906864A
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US
United States
Prior art keywords
lever
ratchet
roller
finger
rearward
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.)
Expired - Lifetime
Application number
US424377A
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English (en)
Inventor
Erich Kuwertz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfalzstahlbau GmbH
Original Assignee
Pfalzstahlbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19722260889 external-priority patent/DE2260889C2/de
Priority claimed from DE19732349664 external-priority patent/DE2349664A1/de
Application filed by Pfalzstahlbau GmbH filed Critical Pfalzstahlbau GmbH
Application granted granted Critical
Publication of US3906864A publication Critical patent/US3906864A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems

Definitions

  • a coupling means for a circuit conveyor of the type comprising a pulling chain having ratchets presenting fingers, a suspended track below the chain for bogies having forward and rearward drive units rolling on said track, coupling components having movable mounted on the pulling chain, said bogies having fixedly mounted coupling elements cooperating with said coupling components, said coupling components on said pulling chain including a housing supporting a ratchet finger and a latch lever pivotally mounted on horizontal axes for pivotal movement in opposite directions, said latch lever normally retaining said ratchet finger in position for engagement, each rearward drive unit having a running path for cooperation with said ratchet finger to move said ratchet finger upwardly, one said bogy having a roller with a cap and said cap supporting a roller and having a forward curved portion defining said running path and a rearward vertical abutment surface, and a rearward roller having a cap having vertical forward and rearward surfaces, said ratche
  • FIG. 1 A first figure.
  • the coupling components that are disposed on the ratchets of the conveyor chain comprise a housing in which one ratchet finger and a setting lever that is in operative connection with it are journalled for piv otal movement about horizontal axes in opposite directions in a manner that the setting lever normally holds the ratchet finger in engagement position and brings about pivoting of the ratchet finger upwardly during the raised position of an ascent cam provided on the ascent portion of the drive unit on the bogie which is rearward with respect to the advancing direction.
  • the roller supports or carriers of the bogies are simultaneously constructed as the coupling components or runner parts associated with the bogies, and for this purpose they carry cam members which are in the form of roller caps.
  • the cap which is in front with respect to the direction of movement has a rounded portion forwardly and is equipped at the rear with a vertical abutment surface, while the roller cap which is rearward with respect to the direction of travel presents vertical front and rear ends.
  • the setting lever that simultaneously serves as a latch lever is provided with a nose that stops the ratchet finger which it engages about its pivot axis in a vertical position and releases the same, while in raised position for pivotal movement upwardly in direction opposite to the direction of forward movement.
  • the latch lever is provided on its lower side with a recess that corresponds to the rounded portion of the forward roller cap of the bogies and the side facing the nose of the ratchet lever is likewise provided with a recess into which projects the nose for releasing the ratchet finger.
  • the circuit conveyors for which this coupling device is intended are frequently built in such a manner that the pulling chain and the suspended track disposed below it for bogies having two drive units have to overcome upward and downward gradients, while as a rule the upward as well as the downward gradients are dis posed at an angle of about with respect to the horizontal.
  • the bogies may release themselves out of the coupling with the pulling chain and run ahead. To be sure, they are caught up with at the end of the declining stretch or at a connecting side track and the coupling with the pulling chain is restored. Nevertheless, this unintended release of the bogies from the coupling can lead to complications.
  • the problem is solved in accordance with the invention by means of a coupling arrangement such as described above, but where the safety latchor lever is supplemented by a further drop lever which is likewise pivotable about a horizontal axes in the housing of the device, and whose lower end cooperates with the roller caps of the bogies in the manner of the ratchet finger that. cooperates with the latch lever, and which has above its pivot axis in the housing an end edge that cooperates with an abutment in that location.
  • the safety lever may be equipped with an additional counterweight on its second arm that faces the drop lever, especially if it is made of light material.
  • the further drop lever can arrive in engagement with the roller caps of the bogies alone by utilizing the force of gravity acting on it.
  • it may also be equipped with a pin that cooperates with the latch lever.
  • the additional drop lever may be constructed in exactly the same manner as the same ratchet finger, so that in the production it is not necessary to make a separate part, but that the same tools may be used for constructing the ratchet finger on the one hand and the drop lever on the other hand.
  • FIG. 1 shows one embodiment of the subject of the application
  • FIG. 2 illustrates a modified embodiment
  • the bogies or carriages which are not illustrated are moved in the direction of the arrow 5 on suspension tracks 1 indicated in dot and dash lines by means of ratchets 2 on the pull chain 3 which in the embodiment illustrated is in the form of a universal joint coupling.
  • ratchets 2 on the pull chain 3 which in the embodiment illustrated is in the form of a universal joint coupling.
  • roller cap 20, 23 having a roller 24 is indicated which is likewise shown in dot and dash lines.
  • the pull chain 3 runs continuously in a guide device or profile (likewise not illustrated). it is conducted in vertical, as well as also in horizontal direction in the guide profile by means of rollers 6 and 7.
  • the guide profile and the suspension tracks 1 for the bogies of the circuit conveyor or drag chain may follow any desired curves horizontally and vertically. If, howi ever, they depart from the horizontal, inclining and deas a rule are disposed at an angle of 30 with respect to Y the horizontal.
  • the ratchets or catchers 2 of the conveyor chain 3 are equipped with a housing between the vertical side walls, between which a latch lever 11 and a ratchet finger 12 that cooperates therewith are journalled for pivotal movement about horizontal axes.
  • the double armed latch lever 11 stops the ratchet finger 12 in its vertical downwardly directed position by means of its one end 13, as long as the end 13' of the ratchet lever 11 is in the lower position. This position of the two levers is indicated in solid lines in the accompanying drawings.
  • the roller cap of the forward roller of the bogies has an upper curvature 22 at the forward end as seen in the direction of travel.
  • the roller cap 23 of the rearward roller of the bogies is not curved.
  • FIG. 1 several forms and sizes of roller caps are indicated which illustrate that this does not adversely affect the operating ability of the installation.
  • a third lever is now provided which is an additional drop lever 25, that is disposed at the forward end of the housing 10 and is likewise pivotable about a horizontal axis ahead of the safety lever 11 as seen in the direction of travel.
  • This drop lever 25 is provided with an end edge 26 in the embodiment according to FIG. 1 which cooperates with an abutment 27 in housing 12 and thus limits the pivotal movement of the drop lever in the direction of forward travel.
  • the drop lever 25 has a lower end 28 which cooperates with the roller caps of the bogies or also with the cam members (not illustrated) of a stop means provided at any desired position in the direction of forward travel.
  • the end 28 of the drop lever 25 is furthermore equipped with a pin 29 which cooperates with the end 13 of the latch lever 13.
  • the drop lever 25 thus first takes care of the problem in this embodiment which was taken care of by the latch lever 11. However, it also prevents the bogies or the caps thereof from disengagement out of the coupling with the drag chain 3 by means of the abutment defined by its lower front edge 30.
  • the drop lever 25 is likewise illustrated in solid lines in its coupled position, and in uncoupled position in dot and dash lines.
  • safety lever 11 is preferably made of light material and thus the excess weight of the end 13 may be too small with respect to the end 13 to insure proper operation of the installation, the end 13' may be equipped with an additional counterweight 31.
  • the pivotal movement of the drop lever 25 is limited by an abutment edge 31a in the direction of forward movement which edge cooperates with an abutment 32 in housing 10.
  • this abutment can be constituted at the same time by the suspension of the connecting member from the ratchet housing 10 to the conveyor 3.
  • the raised position of the drop lever 25' is again indicated in dash and dot lines.
  • the drop lever acts solely under the influence of the force of gravity. A direct cooperation with the safety lever 11 is no longer necessary.
  • the drop lever 25 may be of the same configuration as the ratchet finger.
  • Coupling means for circuit conveyor of the type comprising a pulling chain having ratchets presenting fingers, a suspended track below said chain for bogies having forward and rearward drive units rolling on said track, coupling components having movable members mounted on said pulling chain, said bogies having fixedly mounted coupling elements cooperating with said coupling components, said coupling components on said pulling chain including a housing supporting a ratchet finger and a latch lever pivotally mounted on horizontal axes for pivotal movement in opposite directions, said latch lever normally retaining said ratchet finger in position for engagement, each rearward drive unit having a running path for cooperation with said ratchet finger to move said ratchet finger upwardly, one said bogy having a roller with a cap and said cap supporting a roller and having a forward curved portion defining said running path and a rearward vertical abutment surface, and a rearward roller having a cap having vertical forward and rearward surfaces, said ratchet lever serving also as a latch lever and presenting a nose adapted
  • Coupling means in accordance with claim 4 comprising an additional drop lever corresponding in shape to that of the ratchet finger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Pusher Or Impeller Conveyors (AREA)
  • Chain Conveyers (AREA)
  • Intermediate Stations On Conveyors (AREA)
US424377A 1972-12-13 1973-12-13 Coupling means for circuit conveyor Expired - Lifetime US3906864A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722260889 DE2260889C2 (de) 1972-12-13 1972-12-13 Kupplungseinrichtung für Schleppkreisförderer
DE19732349664 DE2349664A1 (de) 1973-10-03 1973-10-03 Kupplungseinrichtung fuer schleppkreisfoerderer

Publications (1)

Publication Number Publication Date
US3906864A true US3906864A (en) 1975-09-23

Family

ID=25764232

Family Applications (1)

Application Number Title Priority Date Filing Date
US424377A Expired - Lifetime US3906864A (en) 1972-12-13 1973-12-13 Coupling means for circuit conveyor

Country Status (9)

Country Link
US (1) US3906864A (enrdf_load_stackoverflow)
CH (1) CH556782A (enrdf_load_stackoverflow)
ES (1) ES421405A2 (enrdf_load_stackoverflow)
FR (1) FR2210534B2 (enrdf_load_stackoverflow)
GB (1) GB1434426A (enrdf_load_stackoverflow)
IT (1) IT1045900B (enrdf_load_stackoverflow)
NL (1) NL163480C (enrdf_load_stackoverflow)
SE (1) SE404683B (enrdf_load_stackoverflow)
YU (1) YU36341B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038925A (en) * 1974-09-14 1977-08-02 Pfalzstahlbau Gmbh. Coupling arrangement for towing conveyor
US4108078A (en) * 1976-03-06 1978-08-22 Pfalzstahlbau Gmbh Coupling apparatus on a circulating tow conveyor
US4287829A (en) * 1977-10-05 1981-09-08 Nakanishi Metal Works Co., Ltd. Carrier stopping device for power-and-free conveyor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818715C2 (de) * 1978-04-28 1981-11-26 psb GmbH Förderanlagen und Lagertechnik, 6780 Pirmasens Kupplungseinrichtung für Schleppkreisförderer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314378A (en) * 1962-07-02 1967-04-18 Midwest Conveyor Company Inc Drive disengaging trolley system
US3662688A (en) * 1970-01-28 1972-05-16 Standard Alliance Ind Coder for industrial conveyors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314378A (en) * 1962-07-02 1967-04-18 Midwest Conveyor Company Inc Drive disengaging trolley system
US3662688A (en) * 1970-01-28 1972-05-16 Standard Alliance Ind Coder for industrial conveyors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038925A (en) * 1974-09-14 1977-08-02 Pfalzstahlbau Gmbh. Coupling arrangement for towing conveyor
US4108078A (en) * 1976-03-06 1978-08-22 Pfalzstahlbau Gmbh Coupling apparatus on a circulating tow conveyor
US4287829A (en) * 1977-10-05 1981-09-08 Nakanishi Metal Works Co., Ltd. Carrier stopping device for power-and-free conveyor

Also Published As

Publication number Publication date
NL7316606A (enrdf_load_stackoverflow) 1974-06-17
YU36341B (en) 1983-06-30
SE404683B (sv) 1978-10-23
IT1045900B (it) 1980-06-10
FR2210534A2 (enrdf_load_stackoverflow) 1974-07-12
NL163480B (nl) 1980-04-15
YU321873A (en) 1981-11-13
NL163480C (nl) 1980-09-15
CH556782A (de) 1974-12-13
GB1434426A (en) 1976-05-05
ES421405A2 (es) 1976-07-16
FR2210534B2 (enrdf_load_stackoverflow) 1977-03-18

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