US1908666A

US1908666A - Heel washer distributing device

Info

Publication number: US1908666A
Application number: US443370A
Authority: US
Inventors: John T Gordon
Original assignee: Goodyear Tire and Rubber Co
Current assignee: Goodyear Tire and Rubber Co
Priority date: 1930-04-11
Filing date: 1930-04-11
Publication date: 1933-05-09
Anticipated expiration: 1950-05-09

Description

May 9, 1933. J. T. GORDON HEEL WASHER DISTRIBUTING DEVICE Filed April 11, 1930 iJNrrE s'r'rs FEE V JOHN T. GORDON, OF AKRON, OHIO, ASSIGNOR TO THE GOODYEAR TIRE 8a RUBBER COM- IPANY, OF AKRON, OHIO, A CORPORATION OF OHIO HEEL WASHER DISTRIBUTING DEVICE Application filed April 11,

This invention relates to the manufacture of rubber heels and like articles where nailholding washers are employed, and it has particular relation to a device for distributing the washers to the pins of molds employed for vulcanizing such articles of manufacture.

he invention is an improvement over the heel washer distributor embodied in the patent to Shrock 1,584,477, issued May 11, 1926, and has for an object the provision of an improved device of the above noted character which will distribute the washers to the pins of heel molds in an efficient and uniform manner.

For a better understanding of the invention, reference may now be had to the accom-' panying drawing, forming a part of the specification, of which:

Fig. 1 is an elevational view partly crosssectional of a heel washer distributing device constructed according to one form of the invention;

Fig. 2 is a fragmentary cross-sectional view, on a larger scale, taken substantially along the line II1I of Fig. 1, illustrating a device for securing a washer stringing wire in its operative position;

Figs. 3 and 4 are fragmentary views partly cross-sectional, of one of the heel washer distributing devices shown by Fig. 1, illustrating the manner in which a washer is disposed upon the pin of a heel mold; a I

Fig. 5 is a rear elevational view of the construction shown by Fig. 4; and I Fig. 6 is a plan view showing in detail the lower end surface of one of the washer distributing elements. 7 r

Referring to Fig. 1, a frame base 10 is provided, which comprises spaced

upper plates

12 and 13 disposed respectively at theends of the frame. The plates 12 and 1 3 are provided at their remote edges with

guide bars

14 and 15, respectively, which are secured to the plates by screws 16. A pin 18 threaded at its lower end into the plate 12 projects upwardly from the latter while a similar pin 20 projects upwardly from the plate 13.

A second frame 23 substantially rectangular in shape and of such dimensions that it seats on the

plates

12 and 13 between the 1930. Serial N0. 443,370.

guide members

14 and 15 comprises a pair of

plates

24 and 25 disposed respectively upon the

plates

12 and 13, which are rigidly connected by a pair of frame members 26. The

plates

24 and 25 have

openings

28 and 29 respectively,'which receive the pins 18 and 20, respectively. The plate 24 is urged downwardly against the plate 12 by a helical spring 30-encircling the pin 18 and abutting at its lower end the plate 24 and at its upper end a collar 31 retained upon the upper end of the pin by a cotter pin 32. y V

The frame 23 includes an upwardly pro jecting support 35 that is provided with an upper horizontally disposed portion 36. The plate 25 and the portion 36 are provided with

openings

37 and 38, to receive end portions of a pin 39 that has an intermediate enlarged screw threaded portion 40, and at opposite ends of the screw threaded portion,

collars

41 and 42 are provided for properly retaining the pin 39 in position. The upper end of the pin 39 is polygonal in shape to facilitate turning it by utilizing a suitable wrench. An arm 45 is provided with an integrally threaded which engages the threaded portion of the pin 39 and the free ends of the bifurcated portion of the arm are provided with cars 48 adapted to be drawn together by screws 47.

. 7-5 bifurcated cylindrical portion 46 at one end It is apparent that by loosening the screws l downwardly depending upon the direction in which the pin 39 is turned. Also, it is apparent that by tightening the screws 47, the arm is rigidly maintained in position with respect to the pin 39, although the pin is free to rotate in the openings 3? and 38. Other pins identical to the pin 39 may be rotatably mounted in the bar 25 and the plate 36 in spaced relation with respect to the pin 39, for receiving other similar, arms such as indicated. at 50. V v l r The opposite end of the arm 45 is provided with a semi-circular lug. 52 projecting from its end surface, which is disposed between a bifurcated portion 53 of an arm 54, 1 A-pin 55 projecting through the lug 52 and the bifurcated portion 53 pivotally connects the arm 45 to the arm 54. In order to permit limited pivotal movement of the arms 45 and 54, the end surface of the former above and below the pin 55 defines a straight angle or one equal to 180, with respect to the pin, whereas the end surface of the arm 54 above and below the pin defines an oblique angle slightly less than 180. Hence, the angular movement of the arms one with respect to the other is equal to the difierence in degrees between the oblique angle and the straight angle.

The end surfaces of the arms 45 and 54 below the pin 55, normally are maintained in contact by a spring 56, having its ends seated in pockets 57 and 58 of lugs 59'and 60 respectively provided on the upper edges of the arms. It is apparent that the arm 54 can be moved about the pin 55 against the action of the spring 56 until the portions of the end surfaces of the arms 45 and 54 above the pin contact with each other.

The opposite end of the arm 54 is provided with a bifurcated cylindrical portion 61 which is adapted to receive a heel washer magazine 62. Screws 63 engaging ears 64 at the free ends of the bifurcated portion 61 serve to draw the bifurcated ends together and hence to secure rigidly the magazine 62 with respect to the bifurcated portion 61. It is apparent that by loosening the screws 63 the magazine 62 may be adjusted with respect to the arm 45.

As best shown by Figs. 3, 4 and 5, the lower end of the magazine 62 projects through a bifurcated block 49 having a cylindrical opening provided between the bifurcated ends thereof. This block is disposed between legs 69 and 71 of a U-shape frame 76, and is retained between such legs bybolts 7 projecting through opposite ends of the block 49, through the legs 69 and 71 of the frame 76, and having nuts 83 threaded on the ends thereof. A sleeve 65 telescopically receives the lower end of the magazine 62, and is urged towards the lower end of the magazine, by a helical spring 66 encircling the sleeve. This spring abuts at its upper end the block 49 and at its lower end a, flange 67 integral with the lower end of the sleeve and which has a groove 68 forreceiving the lower convolution of the spring. A second sleeve 70 which is shorter than the sleeve 65 is disposed partially within the lower portion of the latter sleeve, and is of such dimensions, that it tightly engages such sleeve, and in effect acts as an integral part thereof. Insofar as the operation of the

sleeve

65 and 70 is concerned, they might be integral, but it is easier to manufacture them separately and thereafter rigidly associate them together. The upper end of the sleeve 70 is provided with alternating projections72 and recesses 73 which cooperate respectively with complementary openings 74 and projections 75 formed in the lower end of the magazine 62 for permitting relative movement of the magazine and sleeves, while preventing lateral movement of heel washers disposed on i the lower end of the magazine.

s shown best by Fig. 3, the lower end of the sleeve 70 is enlarged to provide a rectangular portion 78, the sides of which as indicated at 79 and 80 slidably engage the legs 69 and 71 of the frame 76 (Fig. 5). The rear Wall of the rectangular portion 78 is recessed as indicated at 81, and such recess at its lower edge is enlarged to provide a groove 82, which is open to the lower end of the sleeve.

The lower ends of the legs 69 and 71 of the frame 76 are turned in toward each other as indicated at and 86 and the adjacent edges of such inturned portions are convergingly directed to provide a guideway 87 having a relatively large entrance 88, which gradually tapers into a portion 89, below the sleeve 70, which has parallel sides. The ends of the inturned portions 85 and 86 opposite the enlarged portion 88 of the guideway formed between them, are turned upwardly as indicated at 90 and 91 to provide seats fora shoe 93 which is pivotally mounted upon a bolt 94 projecting through the legs 69 and 71 of the frame 76. The free end of the shoe 93 supports the sleeve 70. Also, the shoe 93 is provided with an elongate opening 95 in its free end, which is aligned with the center of the sleeve 70 and the portion 89 of the guideway 87 formed between the inturned edges 85 and 86 of the frame 76.

The magazine 62 is adapted to receive concave heel washers having their convex surfaces uppermost, and which are provided with centrally located nail-receiving openings 101. Initially, these washers are arranged upon a wire 102 and the lower end of the latter is moved downwardly into the 7 magazine 62 until its lower end is adjacent the shoe 93. Then the Washers are permitted to move along the wire until the lower end of the column rests upon the shoe and the wire then is moved upwardly until its lower end is disposed only a short distance in the magazine. Then the upper end of the wire is fastened in a clamping device 103. As best shown y Figs. 1 and 2, the clamping device 103 comprises a pair of vertically spaced plates 104 which are secured intermediate their ends on opposite sides of a bar 106 extending laterally from and secured to an upright support that is secured at its lower end to the base 10. The free ends of the plates, 104 are provided with V-shape recesses 107. Elongate metal elements 108 and109 having one end looped respectively about the pins 110 and 111 projecting throughthe plates 104, extend between the latter, into positions of alignment with the recesses 107. Adjacent the pins 110 and 111 the

elements

108 and 109 are resiliently urged together by a spring 112 disposed upon abolt 113 projecting through openings in the elements. The head of the bolt 113 engages the outer side of the element 109 while the spring 112 is disposed on the opposite end of the bolt and engages the outer side of the element 108 and a nut 115 threaded upon the outer end of the bolt. The end portions of the

elements

108 and 109 defining the recess 107 are provided with adjacent

arcuate recesses

117 and 118 which are adapted to retain the wire 102 in position in alignment with the axis of the magazine 62. It is to be understood that as many clamping devices 103 as desired may be mounted upon the bar 106 for clamping other washer receiving wires employed.

The operation of the above-described heel washer distributing device is as follows:

The plate 120 of a heel mold having a plurality of pins 121 projecting upwardly therefrom, is moved beneath the washer distributing devices in a direction indicated by the arrows in Figs. 3 and 4. In applying a washer upon one of the pins 121 the latter is moved into the guideway 87 and, owing to the fact that such guideway is relatively large at the entrance side thereof, it is apparent that pins 121 not exactly in alignment with the guideway may be provided with washers, because the

arms

54 and 50 to which the washer distributing devices are secured, are free to swing about the axes of the pins 39. However, the arms at and 50 normally are maintained in positions parallel with respect to the base 10 by springs 125 secured to one of the bolts 77 on the frame 7 6, and to the plate 2% forming part of the frame 23. As the pin 121 moves through the guideway 87, its upper end first engages the shoe 93 and moves the shoe about the pivot 94, and, consequently, moves the sleeves 70 and upwardly against the action of the spring 66. Likewise, the column of washers will be moved upwardly with the sleeves. lVhen the pin reaches the recess 95 in the shoe 93, the shoe, the aforesaid sleeves, and the column of washers move downwardly to a position limited by the engagement of the shoe with the

upturned portions

90 and 91. It is apparent that as the pin 121 moves into the recess 95, the central opening in the washer at the lower end of the column thereof engages the pin. Further movement of the pin, as particularly shown by Fig. i, causes movement of the lower washer through the recess 82 until it is free of the enlar ed portion 78 of the sleeve 70.

It is apparent that when the washer thus is moved from the lower end of the columnof washers, the succeeding washer moves downwardly until it rests upon the shoe 93.

Should for any reason one of the lower washers not be in a position to pass freely from the recess 82, the frame 49, magazine 62, and arm 54 as an entity will pivot slightly about the pin 55 against the action of the spring 56. The amount the aforesaid parts are permitted to move: about the pin is such that the washer can be moved upwardly. suflis ciently to allow the pin 121 on the-heel mold to move past it without being stoppedthereby. Hence, a continual movement of the mold is provided for, which is desirable in certain methods of manufacture. V

From the foregoing description it isapparent that the device provided by the invention provides an efficient means for distributing washers to heel molds, and that it practically insures the distribution of but one washer to each pm of the mold, because the sleeves 65 and 7 0 move coaxially with respect to the magazine 62 notwithstanding the fact that the shoe 93 moves about. a pivot point 94:. Also, it is apparent the legs69 and 71 of the frame 76, prevent turning of the aforesaid sleeves. Actual use of the heel washer distributing apparatus embodied in this invention indicates that practically in every instance only one washer is distributed to each pin of the heel mold.

Although only one form of the invention has been illustrated and described in detail, it will be apparent to those skilled in the art that the invention is not so-limited but that various modifications may be made therein without departing from the spiritof the invention or from the scope of the appended claims. 7

What I claim is:

1. A device for distributing washers to the pins of heel molds, comprising. a magazine for receiving a column of washers adapted to be moved with respect toa heel plate having pins for receiving washers, and an esr05 capement device at the lower end of the magazine including a sleeve telescopically slidable on the lower end of the magazine. p

2. A device for distributing washers to the pins of heel molds, comprising a magazine for receiving a column of washers adapted to be moved with respect to a heel plate having pins for receiving washers, an escapement device at the lower end of the magazine including a sleeve telescopically associated with the lower end of the magazine, and resilient means normally urging the sleeve toward the lower end of the magazine.

3. A device for distributing washers to the pins of heel molds, comprising a magazine for receiving a column of washers, adapted to be moved with respect to a heel plate hav ing pins for receiving washers, an escapement device at the lower end of the magazine including asleeve telescopically associated with the lower end of the magazine, said escapement device also including a plurality of teeth and recesses adapted to cooperate with complementary recesses and teeth in the lower end of the walls of the magazine for pre- L venting washers from moving laterally while passing from the magazine into the sleeve, the arrangement being such that the washers are at all times held in alignment with each other.

4. A device for distributing washers to the pins of heel molds, comprising a magazine for receiving a column. of washers adapted to be moved with respect to a heel plate having pins for receiving washers, an escapement device at the lower end of the magazine, said device including a sleeve telescopically receiving the lower end of the magazine, and axially slidable thereon.

5. A device for supplying washers to the pins of heel molds comprising an arm pivotally movable both horizontally and vertically and means supported by the arm for distributing the washers.

6. A device for supplying washers to the pins of heel molds comprising an arm pivotally movable in a vertical direction, and means carried by the arm for distributing the washers.

7. A device for supplying washers to the pins of heel molds comprising an arm pivotally mounted for movement in a horizontal plane, a portion of the arm also being mounted for pivotal movement in a vertical plane, and means supported by said portion of the arm for distributing the washers.

8. A device for supplying washers to the pins of heel molds comprising an arm pivotally movable both horizontally and vertically, means supported by the arm for distributing the washers, and resilient means for normally maintaining the arm in a predetermined position.

In witness whereof, I have hereunto signed my name.

Signed at Akron, in the county of Summit and State of Ohio, U. S. A., this 7th day of April, 1930. g

JOHN T. GORDON.