US3131881A

US3131881A - Lap pins

Info

Publication number: US3131881A
Application number: US212648A
Authority: US
Inventors: Kluttz Walter Albert
Original assignee: KLUTTZ MACHINE AND FOUNDRY CO
Current assignee: KLUTTZ MACHINE AND FOUNDRY CO
Priority date: 1962-07-26
Filing date: 1962-07-26
Publication date: 1964-05-05
Anticipated expiration: 1981-05-05

Description

W. A. KLUTTZ May 5, 1964 LAP PINS Filed July 26, 1962 United States Patent 3,131,881 LAP PINS Walter Albert Kiuttz, Gastonia, N.C., assignor to Kiuttz Machine & Foundry Co, Gastonia, Nil, a partnership Filed July 26, 1962, Ser. No. 212,643 11 Claims. (Ci. 242.1)

This invention relates to a device for supporting a roll of lap material and more especially to a lap pin for use in connection with textile machinery such as lapper pickers, intermediate pickers, one process pickers, carding engines and the like.

The function of lap pins is generally described and illustrated in Patent No. 2,105,064, issued January 11, 1938, and Patent Nov 2,968,447, issued January 17, 1961. The conventional lap pin usually consists of an elongated iron rod having a cast iron disk rigidly secured to one end thereof. As stated in the first-named patent, lap pins of this type require special care during normal use in order to avoid breakage of the disk and consequent expensive repairs. A number of attempts have been made to solve this problem, including the elimination of the cast iron disk and the substitution therefor a coiled integral extension of the rod. Such solutions, however, have not proven entirely satisfactory since even the coiled end portion often becomes bent or broken. Moreover, the labor and expense of initially manufacturing the coiled end portion of the optimum size, shape and weight is prohibitive.

Research and development has revealed that the solution to this problem resides in a proper method of mounting the cast iron disk on the rod, rather than the elimination of the disk altogether. A cast iron disk is particularly suitable as a component of a lap pin in that it is easily and economically reduced to the proper size and shape so that the lap pin will be accurately proportioned and balanced.

It is therefore an object of this invention to provide a lap pin composed of an elongated rod having a cast iron disk detachably and yieldably secured upon one end thereof.

It is another object of this invention to provide a lap pin of the class described wherein a plurality of spaced normally compressed resilient rings are interposed between the inner opposed faces of the disk and the rod end portion so as to normally provide a very small clearance between said opposed faces intermediate the rings. Such a construction prevents metal-to-metal contact between the disk and rod end portion until impact or other stresses are applied to the disk sufficient to overcome the resistance of the interposed resilient rings thereby providing a measure of resiliency during the stage of an impact.

It is another object of this invention to provide a novel method of detachably mounting the disk upon the rod so that the disk may be easily removed or replaced.

Although the disks of conventional lap pins, as well as my herein disclosed improvements thereover, are sometimes referred to as cast iron disks, it is to be understood that a wide range of other metallic or non-metallic materials may be employed without departing from the spirit of the invention.

Some of the objects of invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which,

FIGURE 1 is an elevation of my improved lap pin, the intermediate rod portion thereof being broken away;

FIGURE 2 is an enlarged sectional detail view through the left-hand portion of FIGURE 1;

FIGURE 3 is a view looking along line 33 in FIG- URE 2;

FIGURE 4 is a sectional View taken along line 4-4 in FIGURE 2;

3,131,881 Patented May 5, 1964 FIGURE 5 is an exploded isometric view of portions of the lap pin shown in FIGURE 1;

FIGURE 6 is an elevational view of a portion of an intermediate picker showing my improved lap pins in use thereon;

FIGURE 7 is a sectional view through a lap roll wound upon a winding arbor which, in turn, supports the lap P FIGURE 8 is a view similar to the left-hand portion of FIGURE 7, but showing the lap pin and associated lap partially withdrawn from the arbor, and

FIGURE 9 is a detail view similar to FIGURE 2 and showing a slightly modified form of invention.

Referring more specifically to the drawings, the numeral 10 denotes broadly my improved lap pin which comprises an elongated rod 11 having a disk 12 secured upon one end thereof.

When the present device is used in association with textile intermediate pickers such as designated by the numeral 14 in FIGURE 6, the rod 11 is telescopically mounted within an elongated hollow arbor in the manner shown in FIGURE 7, said arbor having wound therearound a roll 16 of fibrous lap material. A plurality of such rolls are positioned at the intake end of the picker 14 to be simultaneously unwound and fed into the latter, at which time suitable standards 17 on the picker are engaged by the arbor ends to maintain the rolls spaced apart one from another. In other applications of the invention, the lap pin 11) serves as the sole support for roll 16, the rod 11 serving as a spindle or central core and one face of the disk engaging the end of the roll.

Conventional lap pins consisting of an elongated rod with a cast iron disk welded or otherwise permanently secured upon one end thereof represent considerable weight when a lap of fibrous material is wound thereon. The combined weight is even greater when the lap pin is used in association with central arbor 15; consequently, when the assembly is dropped or otherwise subjected to abnormal impacts during handling breakage of the disk frequently occurs. Repair of this type of breakage requires as much or more labor and expense than fabrication of a new lap pin.

In order to reduce the liklihood of breakage the disk 12 is yieldably secured upon the end of rod 11. Furthermore, the disk is detachably secured so that removal of replacement is a relatively inexpensive operation.

It will be observed in FIGURE 2 that one end portion of rod 11 is provided with a plurality of longitudinally spaced grooves 19 in which rings 20 of resilient material are mounted respectively. The outer peripheries of rings 21 extend radially above the periphery of rod 11 before disk 12 is secured in position (FIGURE 5). When, however, the disk 12 is secured in the position shown in FIGURE 2 the rings are radially compressed and serve to bind the shaft 11 and disk 12 together. It will also be noted that a working clearance 22 at least must be provided between the periphery of rod 11 and disk bore 23 in which the rod is mounted. The resilient compressed rings 20 normally maintain this clearance, but will permit a limited rocking or other movement relative to the rod when the disk is subjected to impact, the amount of such relative movement being primarily determined by the amount of existing clearance 22. Thus the initial force of an impact upon disk 12 will be yieldingly resisted by the resilient rings, followed by a rigid resistance when the metallic inner periphery of bore 23 is moved into contact with the outer metal periphery of rod 11. Stated differently, the provision of spaced rings 29 in grooves 19 permit a part of the rod end portion to be utilized to resiliently absorb the initial stage of the impact while the remainder of the end portion within bore 23 is'utilized to rigidly resist the latter stage of the impact.

The end portion of rod 11 is also provided with

peripheral grooves

25 and 26 for removably accommodating split radially spn'ngable rings27 and 28 respectively. One face of, disk 12 has a bore 29 therein (FIGURES 3 and said bore lying in the plane of and concentric with groove 25 and ring 27. The size of bore 29 is substantially the same as the size of the outer periphery of ring 27 thereby locking the ring within its groove and also preventing movement of the disk in one direction longitudinally of said end portion.

The face of disk 12 disposed adjacent the stern of rod 11 is provided with a bore 30 (FIGURES 2 and 4), said bore lying in the plane of and concentric with groove 26 and ring 28. The diameter of bore 30 is substantially larger than the outer periphery of spring ring 28 whereby the ring may be removed or inserted in groove 26. Therefore, the spring ring 27 is locked in its groove 25 by disk bore 29 in one face of the disk, and the second spring ring 26 engages the opposite face of the disk and the groove 26 to hold the first spring ring is locked position.

Disk bore 30 is of sufiicient depth to permit spring ring 28 to be substantially countersunk within the disk so as to minimize the likelihood of the ring becoming entangled with the lap material wound around rod 11.

FIGURE 9 illustrates a modification of the invention further characterized by a disk 12a having a bore 2% therein of sufiicient depth to permit the end of rod 110 and the spring ring 27a to be countersunk below the face of the disk, thereby permitting said face to be utilized as a bearing surface when the rod 11 is to be maintained in an upright position. This form of invention is still further characterized by the provision of a relatively wider groove 19a'forreceiving the spring ring 27a, said ring,

being springable longitudinally as well as radially of rod 11a. The serpentine configuration of ring 27a permits longitudinal springability and serves to yieldably press the disk 12a against the spring ring at the opposite face of the disk. I

In the drawings and specification preferred embodiments of the invention have been disclosed, and although specific terms are employed they are used in a generic sense and not intended for the purpose of limitation, the scope of invention being set forth in the following claims.

I claim:

1. In a device for supporting a roll of textile lap material, an elongated rod member about which said lap is adapted to be wound, and a disk member on one end portion of said rod member for supporting the end of the wound lap, means for preventing movement in one direction of said disk member longitudinally of said rod member, comprising aspring ring at one face of said disk member and surrounding said rod end portion, means including a bore in said disk face for receiving said ring and for radially contracting the latter into fixed engagement with said rod end portion, and means reelasably engageable with said rod end portion at the opposite face of the disk member for permitting movement of the disk member in an opposite direction longitudinally of the rod member whereby said contracted ring may be released from said disk bore and from its fixed contracted engagement with said rod end portion in the order named.

2. A device as defined in claim 1 and further comprising means for preventing relative rotation between said disk and rod members including a plurality of normally compressed resilient rings spaced upon said rod end portion and lying between the inner opposed faces of said rod and disk members, said resilient rings normally maintaining said inner opposed faces in spaced relation.

3. A device as defined in claim 1 wherein said spring ring is provided with a serpentine configuration to thereby yieldingly press said disk member longitudinally of said rod member and against said last-named means.

, of said disk having a bore concentrically of said groove and lying substantially in the plane of the latter, the inner marginal edge of said ring fitting in said groove and its outer marginal edge abutting the inner periphery of said bore whereby the ring will be locked in position and movement of said disk toward said end portion will be prevented, a second spring ring, the opposite face of said disk having a second bore therein substantially larger than the outside periphery of said second ring and said rod havmg a second groove therein concentrically of said second bore and lying substantially in the plane of the latter, the inner marginal edge of said second ring fitting in said second groove and its outer periphery being normally disposed in spaced relation to the inner periphery of said second bore, whereby movement of said disk longitudinally of the rod and away from said end portion will be prevented and whereby the second spring ring may be expanded within the second bore to remove its inner marginal edge from the second groove, and at least two normally compressed resilient rings spaced upon said rod end portion at points intermediate said spring rings, said resilient rings lying between the inner opposed surfaces of the disk and the rod end portion.

5. A device as defined in claim 4 wherein said rod end portion terminates within saidfirst bore in the disk.

6. A device as defined in claim 5 wherein said first spring ring is provided with a serpentine configuration substantially throughout its length to thereby yieldingly confine the disk between the rings.

7. A device as defined in claim 4 wherein said first spring ring is provided with a serpentine configuration substantially throughout its length to thereby yieldingly confine the disk between the rings. 7

8. In a device for supporting a roll of textile lap material, an elongated rod around which said lap is adapted to be wound, a disk for limiting movement of said roll in one direction longitudinally of said rod, and means for detachably and yieldingly securing said disk upon one end portion of said rod comprising, a spring ring, said rod end portion having a peripheral groove therein and one face of said disk having a bore concentrically of said groove and lying substantially in the plane of the latter,

the inner marginal edge of said ring fitting in said groove and its outer marginal edge abutting the inner periphery of said bore whereby the ring will be locked in position and movement of said disk toward the end of said portion will be limited, and a second spring ring, the opposite face of, said disk having a second bore therein substantially larger than the outer peripheryof the second ring and said rod having a second groove therein concentrically of said second bore and lying substantially in the plane of the latter, the inner marginal edge of the second ring fitting in said second groove and its outer periphery being normally disposed in spaced relation to the mner periphery of the second bore, whereby movement of said disk longitudinally of the rod and away from the end of said portion will be limited and whereby the second sprmgring may be expanded within the. second bore to remove its inner marginal edge fiom the second groove.

9 A device as defined in claim 8 wherein said first spring ring is provided with a serpentine configuration yieldingly urging said disk against the second ring.

10. In a device for supporting a roll of textile lap material, an elongated rod member about which said lap is adapted to'be wound, and a disk member for limiting movement of the roll in one direction longitudinally of said rod member, means for fixedly and detachably mounting said disk member upon one end of said rod member, comprising means including a pair of spaced spring rings releasably clamping the periphery of the rod member and respectively engaging the opposite faces of the disk member, and means for preventing relative rotation between said disk and rod members including at least tWo normally compressed resilient rings spaced upon the rod member at points intermediate said spring rings, said resilient rings normally maintaining the inner opposed surfaces of said disk and rod members in spaced relation.

11. A device for supporting a roll of textile lap material comprising the combination of, an elongated rod member about which said lap is adapted to be wound, a disk member at one endof said rod member, means for preventing relative rotation between said members including a plurality of normally compressed resilient rings spaced upon said rod end and lying between the inner opposed surfaces of said members, said resilient rings nor- References Cited in the file of this patent UNITED STATES PATENTS 2,577,009 Frantz Dec. 4, 1951 2,861,435 Seanor Nov. 25, 1958 2,968,447 Neuman Jan. 17, 1961 3,005,323 Carter et al. Oct. 24, 1961 OTHER REFERENCES Waldes Truarc brochure received Nov. 12, 1952, page 5.

Claims

1. IN A DEVICE FOR SUPPORTING A ROLL OF TEXTILE LAP MATERIAL, AN ELONGATED ROD MEMBER ABOUT WHICH SAID LAP IS ADAPTED TO BE WOUND, AND A DISK MEMBER ON ONE END PORTION OF SAID ROD MEMBER FOR SUPPORTING THE END OF THE WOUND LAP, MEANS FOR PREVENTING MOVEMENT IN ONE DIRECTION OF SAID DISK MEMBER LONGITUDINALLY OF SAID ROD MEMBER, COMPRISING A SPRING RING AT ONE FACE OF SAID DISK MEMBER AND SURROUNDING SAID ROD END PORTION, MEANS INCLUDING A BORE IN SAID DISK FACE FOR RECEIVING SAID RING AND FOR RADIALLY CONTRACTING THE LATTER INTO FIXED ENGAGEMENT WITH SAID ROD END PORTION, AND MEANS REELASABLY ENGAGEABLE WITH SAID ROD END PORTION AT THE OPPOSITE FACE OF THE DISK MEMBER FOR PERMITTING MOVEMENT OF THE DISK MEMBER IN AN OPPOSITE DIRECTION LONGITUDINALLY OF THE ROD MEMBER WHEREBY SAID CONTRACTED RING MAY BE RELEASED FROM SAID DISK BORE AND FROM ITS FIXED CONTRACTED ENGAGEMENT WITH SAID ROD END PORTION IN THE ORDER NAMED.