US1496020A

US1496020A - Upper-tightening device

Info

Publication number: US1496020A
Application number: US425123A
Authority: US
Inventors: Charles F Pym
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1920-11-19
Filing date: 1920-11-19
Publication date: 1924-06-03
Anticipated expiration: 1941-06-03

Description

June 3 1924.

C. F. PYM

UPPER TIGHTENING DEVICE Filed NOV. 19, 1920 2 Sheecs-Sheet 1 June 3 1924, 1,496,020

' 1 c. F. PYM

UPPER TIGHTENING DEVICE Filed Nov. 19, 1920 2 Sheets-Sheet 2 Patented June 3, 1924.

cH'ARLEsn PYM; or LYNN, MAssnoHUsETTs';nssireltocaxrq UNITED-SHQE MAGHIM:

ER'YcoRPoRArIoN', oFrA-TERsoN;

NEWJERSEY, AcoizPoitAm-ioNon'NEW JERSEY UPPER-TIGHTENINGFDEVIGEET Application afilemNovembei-xw, 1920: SerialcNi 4255123.?

To:allnoizbmitzmagficoncemi I Bl'ecit; known that: I, ORA-Rims; F. RIM; a subject-c of! the: King of England,1;andf,re-, siding-mt- Lynn; in ithezcounty: of .Essexa'and 6 Statewof: Ma-ssachusetts,- have invented certtain Improvements in Uppen-Tightening Devices; of which the 1 following description,

in connectionawith the-I accompanying drawings; is; a-specification, like reference char- 10 acters onthe; drawingsindicatingdike parts-i inwthe :several figures.

This: invention relates: to tightening-g de.

vices of the-type adapted? more; especially;

for closing together the eyeleted edgesaof' turn: shoes at: second lasting, although it is apparent; that 'inmany aspects-the; inven tion is not limitedztorsuchiuser- V In. thez manufacture, of turnrshoes, it is customary to lace;' up the shoe,- tops before putting them on the lasts: preparatory-to attaching; thee soles: and also. before; the: relast ing: operation", after the soles are: attached, The; lacing is; usually done, with-twine, an operation" involving considerable time andlabor-and the-useof considerable amounts;

of twine which is afterward ator and thrown away. 7

The object. of i the "invention; is -:to provide; a small, inexpensive temporary fastening which may be; quickly and easily. attached toJ a shoe upper-for drawing it tightly on; a last withztheeeyeletededges-together; In the embodiments selected for illustration, a" pair ofholders having eyelet engaging hooks are: mounted for: relative movement controlled by curvedmemberswhich may be inthe =form ofrings-whichlock the holders in" their clamped relation to the eyeletsof a shoe. Theholders: are; preferably thin, flat plates; and move'bodily toward'ea'ch otherabout an axis substantially parallelto'theinstep portion; of the shoe: hen closed they lieclose: to the shoe where; they can not interfere: with subsequent operations. In accordance with one embodiment, theringsmay also-be; arranged to provide a mechanical advantage for forcing 1 the holders to their clamped 'position. In another embodiment, the holders are connected by: curved barson which one-10f the holders may tilt. to bind the holders in clamping position.

These and, other: features of: the. invention,

cut by the oper-- including certain detailssoftconstrnctionfandt combinationssofi parts'gsgwill be i set forth 4 in; .65 connectionwith illustrative: embodimentseoffi the-i: invention, ands-pointed out ineathee. ap; pended-claims: Q

Referring toztheadrawings, v

Fig; 1 is a-rperspectiveeview showingrgonefi forms; of myw invention: applied 1 to y a;- relastel; ed-Z-shoe and-3-also:=showinggagtreadlaoperatede clamp} which rmayjbejuseda topforce the ehold-Q ersztogethen; to: cause: the; opposite eyeletediedgesro theyupperi to; approach" each; other! 95 overg-th'etilast; I

Eig 2; is, a perspective? views of thei'tighteening device detached;

Eig-i 3 is a perspective 1 view of; airelastedi' shoe: showing ano-thenfornri'ofmy tighteiiiiig 'i device applied ;to its;

EigAcrisra perspective; view=-of theifdevicer detached; 7

Fig. 5 is? a: perspective.- view; of; still ana other form of inyn invention; 7

Fig. 6.is adiagrammatic: viewvshowingz; the manner in: which the ringsyact 5130; clamp; theeyeletengaging;memberstogether, I

In" theform; of; my invention Sh'OWIIr-IIIE Fig;;.,2, the tightening -de.vicea;consists of two so relatively; movable :holders-i each; comprising a pairv of connected plates 10 which may: be stampedionti-of sheet metal 'andgeach having pressed; out;portionsle and: 16 facing each other:-to -form cavities in whichr'are insert ed eyelet ;enga-ging1hooks18.- Eachgholder: with its hooks; 18- forms one: of. a: pair of clamping; members' which engagethe shoe eyeletsand' draw them: togetherover the last. These hooks:- are each 7 formed of 'a piece 01"? Wire bent back upon itselzt' between. the endszto form-a shankzfZOand; two OPPO?" sitely extending terminal .portions22 which form retainingrstopsr Theg pressed outf POT-7' tions; 14=-and 16- formangular cavities:;-ii1-; which; fit;loosely=the-shank and terminal stop portionsyof the eyelet engaging hooks?" and the cavities: are of sufficient-j extent to enable; the hooks 181 to; have sliding. -mo vement-in order toregister with eyeletsaw hich' areedifi'erently spaced. To one Ofthefh01d', ers are rigidly secured-asat 32, curvedebars': 28 which act as guides-for the otherholder, the; bars passing; oosely through openings; 34, and having; retaining t-knobs =30i at thein 1 ends --tow prevent: separation of" the; parts;

" 18, to swing them apertures 134 in the holders.

These bars 28 also act to lock the holders in closed position since the tension on the shoe upper tends to tilt the holders and causes them to bind frictionally against the bars. In Fig. 1 I have shown a shoe 36 mounted on a last and the form of my invention just described applied to the eyelets 38.

In order to draw the holders together, a special form of treadle operated clamp may be used as shown in Fig. 1. It may consist of a hollow sleeve having

horizontal ears

62 and 64 which are secured in any desired manner to the table 66. Attached to the sleeve 60 is a lower jaw 68 and above thisis mounted a. jaw 7 0 carried on the upper end of a sleeve 74 slidable in the sleeve 60 and treadle operated. In order to raise the jaw 70 after it has been depressed to clamp the holders together, a coiled spring 7 6 is mounted within the enlargement 72 and bears at its upper end against the adjusting screw 7 8 and at its lower end against an abutment block 80 mounted on a pin 82 secured to the sleeve 60. The pin 82 and the block 80 are embraced by the sleeve 74, a long slot 84 in the latter sliding past pin 82 and serving to prevent rotation of the clampingjaws with reference to each other. In the lower end of the sleeve 74 is a pin 86-to which are connected rods 88 and 90 actuated by the. treadle 94. Any suitable clamp 92 may be used to adjustably connect the rods. hen the treadle is released the spring 76 raises the-upper jaw 70 and later, when it is desired to release the holders from the shoe, any suitable tool may be inserted between them at the sides opposite the hooks back into a radial position where they will easily slide along the bars 28.

In the form of tightening device illustrated in 4, the rings 128 afford a mechanical advantage in forcing the holders toward each other although the treadle operated clamp may be used to aid in this operation. As shown, the holders and the eye let engaging members may be formed in precisely the same way as described with reference to Fig. 2, but in addition there is provided a bowed spring 24 having slots 26 through which pass the large rings 128, these large rings also passing through suitable I The ends of the holders are cut away on a curve as indicated at 12 so that the rings may be rotated in the apertures 134 for the purpose of locking the holders in clamping relation "*as indicated in Fig. 3. These rings act to secure a mechanical advantage in the closing movement of the holders and the manner in which they act will appear from reference to Fig. 6 where the ring 128 is shown passed loosely through apertures 134 in the plates 10. The outer surface of each ring bears against the points 50 which provide a fulcrum, bears against the points 48, and, when both rings are rotated, the holders are forced together bodily in a curve to apply equal tension to all the eyelets. When the rings are turned sufficiently around over the ends of the holders, the latter will be locked in position, the spring 24 causing them to engage the rings frictionally. In this position, all of the parts of the device lie close to the shoe and do not interfere with subsequent operations.

arating the holders when the rings are again turned back toward their initial positions. 7

In the form shown in Fig. 5, the holders and eyelet members are formed in a similar manner but I utilize spring plates 40 attached to the holders as by rivets 44 and through apertures 234 in these plates, I insert the rings 228. The ends of the plates 40 are curved as indicated at 42 and the holders are locked in closed position by swinging the rings around the ends 42 as just described with reference to Figs. 3 and 4.

The operation of my tightening device is believed to be apparent from the above without any more detailed description.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a device of the class described, a pair of holders mountedto move bodily toward and from each other in a curve, eyelet engaging members projecting from the holders, and means their movement.

In a device of the class described, a pair of holders shaped to conform to the instep portion of a shoe, eyelet engaging hooks carried by the holders, and means at both ends of the holders for guiding them toward each other to draw together the eyeleted edges of a shoe.

3. In a device of the class described, a pair of clamping members mounted for relative movement, and a pair of rings for forcing the clamping members toward each other-with a mechanical advantage.

4. In a device of the class described, a

pair of relatively movable holders, 3. series of eyelet engaging members mounted on each holder, and means to move all the mem- The spring also alds 1n sep and the inner surface of the ring to guide the holders in pair of relatively movable holders, eyelet engaging members carried by the holders, and a curved member slidably supporting the holders for relative movement in a curve toward and from each other.

7. In a device of the class described, a pair of relatively movable holders, a series of eye let engaging members movably mounted on each holder to engage eyelets which are differently spaced, and a curved member slidably supporting the holders for relative movement in a curve toward and from each other.

8. In a device of the class described, a pair of relatively movable holders, each holder comprising a pair of plates having expanded portions facing each other, eyelet engaging members mounted in the cavities formed by the expanded portions, and means to guide the holders in their relative movement toward and from each other.

9. In adevice of the class described, a pair of relatively-movable holders, a series of eyelet engaging members mounted on each holder, and curved members near the ends of the holders arranged to guide the relative movement thereof and to secure the members in clamped relation to the eyelets of a shoe.

10. In a device of the class described, a pair of thin, flat holders arranged to move bodily toward and from each other about an axis located substantially parallel to the instep portion of a shoe, eyelet engaging members carried by the holders, and means for forcing the holders toward each other to bring the eyeleted edges of a shoe upper together.

11. In a device of the class described, a pair of holders having cavities formed therein, a series of eyelet engaging members fitting loosely in the cavities to compensate for differently spaced eyelets, and means to secure the members in clamped relation to the eyelets of a shoe.

12. In a device of the class described, a pair of holders, each holder having a series of angular cavities, a series of eyelet engaging members each having a shank and a terminal stop for insertion in an angular cavity, and means to secure the members in clamped relation to the eyelets of a shoe.

13. In a device of the class described, a pair of relatively movable holders, eyelet engaging members carried by the holders, and means to lock the members in clamped relation to the eyelets of a shoe, including a spring which also acts to separate the holders when the locking means is released.

14. In a device of the class described, a pair of relatively movable holders carrying eyelet engaging members, a spring interposed between the holders, and means to lock the holders in closed relation against the pressure of the spring.

15. In a device of the class described, a pair of relatively movable holders, a series of eyelet engaging members carried by each holder and rings for locking the members in engagement with the eyelets of a shoe.

16. In a device of the class described, a pair of relatively movable holders each having cavities formed therein, a series of eyelet engaging members movably mounted in the cavities to engage eyelets which are difierently spaced, and rings slidable through openings in the holders for guiding the holders in their relative movement.

17. In a device of the class described, a pair of relatively movable holders having openings, eyelet engaging members carried by the holders, rings loosely engaging the openings and constructed and arranged to guide the holders in their relative movement and to rotate in the openings to force the holders toward each other to bring the eyelet engaging members into clamping relation to the eyelets.

18; In a device of the class described, a pair of relatively movable holders, eyelet engaging members carried by the holders,

means to lock the members in clamped relation to the eyelets of a shoe, and a spring arranged to separate the holders when the looking means is released.

In testimony whereof name to this specification.

CHARLE S F. PYM.

I have signed my