US1964585A

US1964585A - Support for articles

Info

Publication number: US1964585A
Application number: US590542A
Authority: US
Inventors: Einer W Larsen
Original assignee: Western Electric Co Inc
Current assignee: AT&T Corp
Priority date: 1932-02-03
Filing date: 1932-02-03
Publication date: 1934-06-26
Anticipated expiration: 1951-06-26

Description

June 26, 1934. E, w LARsEN 1,964,585

SUPPORT FOR ARTICLES Y Filed Feb. 1932 2 Sheets-Sheet 2 Patented June 26, 1934 r UNITED STATES PATENT OFFICE SUPPORT FOR ARTICLES Einer W. Larsen, Chicago, 11]., assignmto Westem Electric Company, Incorporated, New York. N. Y., a corporation of New York Application February 3, 1932, Serial No. 590,542

Claims. (01. 242-72) This invention relates to a support for articles, The forward ends of the locking jaws 18, that and more particularly to a supporting arbor for is, the ends adjacent the cam faced member 15, spools, reels, or the like. are recessed as at 23 for receiving integral An object of the invention is to provide a safe, retaining portions 24 formed by the slots 19 of 5 efllcient and practical device for supporting artithe arbor 20. The locking jaws 18 have tapered c1es locking surfaces 28 arranged to be forced into In accordance with one embodiment, the inlocking engagement with a reel 29 when placed vention contemplates a reel supporting arbor, upon the arbor 20. having pivotally supported at the outer end there- Disposed concentric with the shaft 10 is a 10 of locking jaws which are normally urged into spring 32, one end of which abuts the cam locking relation with a reel, disposed upon the faced member 15, while the other end abuts an arbor, by a spring actuated cam faced element. annular member 33 which is disposed concentric The cam faced element and the spring for actuwith the Shaft 10 and i f rced by the sprin ating it are disposed concentric with the shaft aga ns projections 34 0f the locking la s 18 at 15 upon which the arbor is mounted, one end of the P t O w y from the p v t l Centers of the shaft being threaded to receive an internally locking la s o a p pose hereinafter described. threaded member for moving the cam faced The operation of this form of the invention, to member against the force of the spring to allow mov e reel from t e a b consists of rothe locking jaws to swing about their pivots so tating the member 13 in a clockwise direction, 20 that the reel may be removed from the arbor. looking fr m h ri h Fi o f rce the cam Other features and advantages of this invenaced m m 15 inwardly against the C p estion will be more clearly understood from the fol- $1011 of the Sp 32, during w ch movement lowing detailed description taken in connection the force of the spring causes the locking jaw with the accompanying drawings, in which 18 to move about their pivots 21, due to th 25 Fi 1 is a, longitudinal sectional view of one engagement of the annular member 33 with the form of the invention; projections 32, as the cam faced member 15 is Fig. 2 is a longitudinal sectional view of another moved inwardly to allow inward movement of form of the invention; the outer ends of the locking jaws. As soon as Fig. 3 is a longitudinal sectional view of still the outer ends of the locking jaws are moved so another form of the invention, and inwardly toward the shaft 10, sufficiently to free 35 Figs. 4, 5 and 6 are sectional views taken rethe reel 29, the reel may be removed from the spectively along the lines 44, 5-5 and 66 arbor and another reel disposed thereupon. of Figs. 1, 2 and 3. In locking the reel upon the arbor, the thread- Referring now to the drawings, numeral 10 ed member 13 is rotated in a counterclockwise 35 (Fig. 1) designates a shaft, one end of which is direction, looking from the right (Fig. 1), which journaled in a suitable support (not shown) and fla o ows the Sp force the cam the other end has a reduced threaded portion 12 faced member 15 to the right, forcing the lockupon which an internally threaded member 13 ing jaws l8 outwardly about their pivots until is disposed. A retaining member 14 extends the tapered surfaces 28 thereof are moved into 40 t an aperture in the end of the threaded porlocking engagement with the outer head of the tion 12, is pinned in place and has an annular reel, forcing the inner head into close engagecollar for limiting the movement of the member ment with the tapered shoulder 22 of the arbor 13 to the right. A cam faced member 15 is mova- 20. It will be apparent that the spring 32 aided bly mounted upon the reduced portionl2 of the by the cam faced member 35 forces the locking shaft 10 and has one end disposed in abuttingv jaws 18 into locking relation with the reel and relation with a bearing 16 mounted in the that even though the force of the spring 32 is threaded member 13. The peripheral surface suflicient to move the locking jaws inwardly toof the cam faced member 15 is tapered and enward the shaft 10 when the cam faced member gages Similarly tapered Surfaces 17 of locking is moved to' the left, it is not suflicient to pre- 50 jaws 18 which are disposed i q y pac d vent a positive locking of the reel upon the arbor.

longitud y extending Slots 19 Of an arbor 20 In this locked position, the nut or threaded memand piv ally Secured n P ac as at 1. Adjacent ber 13 is loose on the threaded portion 12 but is the inner extremity of th earbor 20 a tapered prevented from coming off by the stop 14. shoulder 22 is formed serving as an abutment If the arbor is revolved without av reel being 55 for a reel. placed thereon, the locking jaws 18 tend to fly outward around the pivot 21 but are restrained by the retaining portion 24.

The form of the invention shown in Fig. 2 is similar to the form shown in Fig. 1 in that the locking jaws are pivotally mounted and normally urged into locking positions by a spring pressed cam faced member. In this form a hollow shaft 40 is mounted upon a solid shaft 41, the latter being journaled in a suitable support 42. The outer end of the hollow shaft 40 is threaded as at 43 and has an internally threaded member 44 disposed thereupon, which is limited in its movement 'to the right by a retaining member 45 extending into the outer end of the hollow shaft 40 and having an annular portion 46 receivable in an annular recess of the member 44. The retaining member 45 is secured to the shaft 41 by any suitable means, such as a screw 47.

Mounted concentric with the shaft 40 is a cam faced member 50 having integral sleeve portions annular in general contour and extending from each side thereof, one of the sleeve portions extending over a reduced portion of the internally threaded member 44 and forming an abutting surface 51 while the other sleeve portion forms a support for one end of a spring 52. The other end of the spring 52 abuts against a shoulder 53 of an arbor 54 arranged to receive a reel 55. Disposed in spaced slots in the arbor 54 are locking jaws 58 pivotally supported at 59 and having tapered surfaces 60 which engage cam surfaces 61 of the cam faced member 50. Opposite the tapered surfaces 60 are transversely extending locking surfaces 62 arranged to engage the reel 55 at spaced positions to force the reel into intimate engagement with a shoulder 63 of the arbor 54 and hold the reel against displacement. The inner ends of the locking jaws 58 are disposed in engagement with springs 64, which normally urge the locking jaws about their pivots 59 to force the outer ends ,,thereof away from the reel 55.

During the operation of this form of the ir-rvention to remove the reel from the arbor, the

internally threaded member 44 is rotated ina clockwise direction, looking from the right (Fig. 2) causing a movement thereof relative to the shaft until its inner ends strike the shoulders 51 of the cam faced member 50 and by further movement of the internally threaded member 44 the cam faced member 50 will be moved to the left against the compression of the spring 52, allowing the outer ends of the locking jaws to be moved inwardly about their pivots 59 by springs 64. When the cam faced member 50 has been moved to the left, a sufficient distance to allow the locking jaws 58 to drop out of general alignment with the inner surface of the reel drum. the reel 55 may be removed from the arbor 54 and another reel may be disposed thereupon.

The second reel may be locked in place by rotating the member 44 in a counterclockwise direction, looking from the right (Fig. 2), allowing the cam faced member 50 to be moved to the right by the force of the spring 52, the movement of the cam faced member causing the locking jaws to be swung about their pivots 59 against the tension of the springs 64 until the locking surfaces 62 of the locking jaws 48 are forced into intimate engagement with the reel. In this locked position the threaded member 44 is loose on the threads 43 but is prevented from coming off by stop 46.

The form of the invention shown in Fig. 3 is similar to the forms shown in Figs. 1 and 2 in that the locking jaws are pivotally mounted and are normally urged outwardly into locking engagement with a reel by a spring actuated cam faced member. In this form of the invention a shaft has one end journaled in a suitable support 71 and the other end provided with threads 72 upon which is disposed an internally threaded member 73, held against movement in one direction by a retaining member 74. A cam faced member 75 is disposed concentric with the shaft 70 and has tapered cam surfaces 76 disposed at spaced positions around its periphery in engagement with which locking jaws 77 are disposed. The locking jaws 77 are pivotally mounted at 78 in recesses in the outer end of an arbor 79 and have transversely extending locking surfaces 80 arranged to engage the outer end of a reel 81 disposed upon the arbor 79. The arbor-79 is pinned to an' enlarged portion 82 of the shaft 70, which forms a collar upon the shaft against which one end of a spring 83 abuts the other end abutting the cam faced member 75. The arbor 79 has tapered abutting shoulder 84 at the inner end thereof in engagement with which the reel 81 is forced when the locking jaws '77 are moved into their locking positions.

In order to remove the reel 81 from the arbor, the threaded member 73 is rotated in a clockwise direction looking from the right (Fig. 3), until it engages the cam faced member '75 and by further rotation of the threaded member 73 the cam faced member will be moved to the left against the compression of the spring 83 until the looking jaws 77 are permitted to be moved inwardly about their pivots 78 suflioiently to free the reel 11 and allow it to be moved from the arbor.

Another reel may be disposed upon the arbor and by rotating the threaded member 73 in a. counterclockwise direction, the cam faced member 75 will be moved to the right by the force 114 of the spring 83, moving the locking jaws 7'1 about their pivots and forcing the locking surfaces 80 into intimate engagement with the reel, which vwill'force the inner end of the reel against the abutting shoulder 84 and lock the reel in place. m In this locked position, the threaded member 73 is loose on the thread 72 but is prevented from coming off by the stop 74.

In each form of the invention, the locking jaws are normally urged outwardly about their pivotal supports to lock an article upon the arbor and the ends of the locking jaws are tapered or rounded to aid in the placing of an article such as a reel upon the arbor. Furthermore, the internally threaded

members

13, 44 and 73, the purposes of which are to move the cam faced members against the tension of the springs so that the locking jaws may be moved out of their looking positions, rotate freely upon their respective shafts when the articles are locked upon the arbors and are being rotated, and are held against displacement by retaining members so that these members or any other parts will not be thrown from the apparatus while in motion. The forcing of the locking jaws into locking engagement with the article by the springs obviates the necessity of a threaded or other-mechanism being used to hold the locking jaws in engagement with the article which would tend to become loosened during the rotation of the arbor.

It should be understood that these features may be employed for locking various articles upon supporting members without departing from the spirit and scope of the present invention.

W at s claimed is:

1. In a reel locking device, an arbor for supporting a reel, locking jaws pivotally carried by said arbor, a movable cam member arranged to engage said jaws, resilient means normally forcing said cam member in one direction for forcing the locking jaws in engagement with the reel to lock the reel upon said arbor, means for forcing said cam member against said resilient means for freeing said jaws from engagement with the reel and thereby rendering said resilient means effective for moving said locking jaws out of looking engagement with said reel.

2. In a reel locking device, means for supporting a reel, locking jaws, a cam member disposed in engagement with said jaws, resilient means for moving said cam member in one direction for moving said jaws in engagement with said reel for locking the reel upon said supporting means, and means for moving said cam member against the force of said resilient means, whereby said resilient means is rendered effective for. moving said jaws out of locking engagement with the reel.

3. In a reel locking device, an arbor for supporting a reel, a locking jaw carried by said arbor, a shaft within said arbor, a spring pressed cam slidable on said shaft for locking said jaw in engagement with a reel, and a member threaded on the outer end of said shaft and having a diameter not greater thanthat of said arbor for releasing said cam from looking engagement with said jaw.

4. In a reel locking device, an arbor for supporting a reel, a, locking jaw, carried by said arbor, a rotatable shaft having one end threaded disposed axially of said arbor, a cam slidably mounted upon said shaft and having a eamming surface positioned in engagement with said locking jaw, a spring for normally urging said cam in a direction to move the locking jaw into locking 8 engagement with said reel, and an internally threaded hand-wheel disposed upon the threaded end of said shaft for moving said cam against the force of said' spring to release said locking jaws from said reel and movable free of said cam when said locking jaws are in locked position.

5. In a reel locking device, an arbor for supporting a reel, locking jaws carried by said arbor, a rotatable shaft having one end threaded disposed axially of said arbor, a cam slidable upon said shaft, a spring for normally urging said cam in one direction to move said locking jaws into locking engagement with said reel, an internally threaded member disposed upon the threaded end of said shaft for moving said cam in thel loo other direction against the force of said spring to free the locking jaws from said reel and positioned free of said cam when in looking position, and means for limiting the movement of said threaded member in one direction relative to said shaft.

EINER W. LARSEN.