US2156767A - Shoemaking machine - Google Patents

Description

May 2, 1939. o. MICHALK SHOEMAKING MACHINE Filed March 19, 1956 2 Sheets-Sheet l Bv 2 Q RT'VO k Nav- May 2, 1939. o. MICHALK 'SHOEMAKING MACHINE k Filed March 19, 1936 2 Sheets-Sheet 2 7n venfor I o'f'ro mchhuc '10 pressure on the part of the shoe being glued and means of a pawl carried by a second lever B".

.15 inafter, and will be more particularly pointed out 22 which contacts with the cam 3 being biased .20 Figure 1 is a fragmentary perspective view of a the lever 23 to a position to uncouple the clutch means for he whee tion to the side of the wheel I. A pressure lever Figure 5 is a fragmentary perspective view of away of one of the presses in operative position. Spnng has Its Inner end secured to a rmg 29 provided on the periphery thereof with a side of the lever [2 adjacent the inner end of this 0 Patented May 2, 1939 UNITED STATES PATENT OFFICE SHOEMAKIN G MACHINE Otto Michalk, Dresden, Germany; Martha Johanna Elisabeth Michalk, nee Voig't, Dresden,

a and Hans Joachim Michalk, Chemnitz, Germany, heirs of Paul Otto Michalk, deceased Application March 19, 1936, Serial No. 69,639 In Germany March 27, 1935 6 Claims. (CI. 12-37) This invention relates to shoe making machines 26' and a pulley 25 is connected to the worm drive and more particularly to a gluing machine. 26 and is connected to a suitable source of power An object of this invention is to provide a gluing supply as shown in Figure 1. press of the rotary type which is at all times A bell crank 2' has one portion thereof disposed under the control of the operator and which is in the groove of the collar 2 and the other arm so constructed that a relatively rapid drying ad 2" of this bell crank is connected by means of a hesive may be used in the gluing process. rod ii to a releasing lever 6 which is rockably Another object of this invention is to provide a carried by the base or standard 8. The releasing gluing press which is adapted to place the desired foot lever 6 may be held in depressed position by to release the pressure as the device rotates on a The driving pulley 25 has associated therewith standard. a friction clutch means 24 which is operated by With the foregoing and other objects in view, means of a coupling lever 23. This lever 23 has the invention will be more fully described herean arm thereof disposed in the path of a lever in the claims appended hereto. toward the cam 3 by a spring 21. The lever 22 In the drawings, wherein like symbols refer to is connected to a foot lever 4 by means of a conlike or corresponding parts throughout the sevnecting rod 4 so that the lever 22 may be swung eral views; to a released position and, at the same time, move shoe gluing press constructed according to an embodiment of this invention. The press carrying wheel I has a plurality of Fi re 2 i a f m n ry side elevation of the fixed clamping or base members 5 secured thereto D e S Carrying Wheel and wi the drive in spaced apart relation and in outstanding rela- Figure 3 is an enlarged sectional view through the coupling gear system for the driving means.

Figure 4 is a fragmentary top plan of the coupling gear system.

i2 is rockably carried by the support 40 extending upwardly from the base 5 and has a movable clamping or form member 5 secured thereto as by a yoke member l2. The lever l2 on its upper I the pressing devices and showing the manner in side has ratchet 5 which is engaged by a pawl member l4 mounted on a rocking arm 2|. A X; the pressing devlces are progresslvely respring [6 constantly pulls the pawl I4 into en- Figure 6 is a perspective View partly broken gagement with the teeth of the ratchet l5. The

eferrin to the drawin s, the numeral 8 desi canted by the Wheel bar 30 is g a stgndard or baseghavmg a press carried by the base 5 adJacent the inner end mg Wheel rotatably mounted thereon This thereof and a spring 20 is interposed between the wheel i is mounted for vertical rotation and is blght of the U'Shaped member 30 and the upper rality of spaced apart driving teeth I. The teeth The pring ill constantly urges th le r are adapted to engage a chain 2 which is i 2 to a released position. A pressure cylinder ll] trained over sprockets 28' and 28 and which is carried by the base 8 and is provided with a constitutes the driver for the press carrying plunger H Carrying a T0118! Which is apt wheel I. to engage the underside of the inner portion of 45 The sprocket 28 is loose on a shaft 26' and at the lever 12 so as to lower the form 5 and thereby one side thereof is provided with one portion of press the work together. a clutch for engagement with a complementary The pressure cylinder I0 is connected to a suitclutch means carried by a cam member 3 which able source of pressure, such as air pressure, and is mounted on the shaft 26. The cam 3 has a a valve is interposed in the pipeline connected 50 grooved collar 2 on the side thereof opposite to the cylinder l0 and is opened or closed by rockfrom the clutch secured thereto and a spring ing of alever or treadle 4'. Alocking member 9 constantly urges the cam 3 into clutching engagemay be moved laterally to engage the lever or ment with the clutch portion carried by the treadle 4' so as to hold the valve in open position. 5 sprocket 28'. A worm drive 26 rotates the shaft A second valve 8 is also interposed in a pipe line l8 connected to a press releasing cylinder [8 mounted on the standard 8. The cylinder [8 has a plunger l1 slidable therein carrying a plate or disk H which is adapted to engage the inner end of a pawl releasing rod H! which is secured to the upper end of the pawl carrying lever 2|. The rod i9 is slidable through the inner ring 29' carried by the wheel I.

The inner end of the form member 5 is secured to a ring member 29 secured for movement with the wheel I. The pressure cylinder IS with the releasing disk IT is disposed laterally of the plunger I! operated in the cylinder l so that after pressure has been applied to the movable form by means of the plunger l l engaging the pressure lever I2 and the wheel I rotates for substantially a complete turn the releasing cylinder i8 releases the pawl M from the ratchet 15 through the releasing ro Hi.

In the use and operation of this device, the work is inserted on the base form 5 and then the pressure lever 4' is pressed down so as to open the valve to the pressure cylinder Ill. The plunger H will then rise and contact with the inner end of the pressure lever l2 and lower the movable form 5' for contact with the material. As the outer end of the lever I2 is lowered the pawl 14 rides over the ratchet l5 so that when the pressure of the cylinder I0 is released the movable form 5 will be held by the pawl M in operative position.

At the same time that the plunger H is rising the valve to the releasing pressure cylinder IB is opened and the next or preceding press disposed in confronting position to the disk I1 is released by outward movement of the plunger 11 which engages the press releasing rod l9. The disk 11 and the plunger H are disposed in different vertical planes, and when the press disposed on the approach side of the disk l1 confronts this disk, the operation of this disk l1 will effect release of the press so that the material may be removed therefrom.

After this operation the lever 4 may be pressed down and downward movement of the lever 4 will release the lever holding pawl 9 so that the treadle or lever 4' may rise to a released position. Downward movement of the lever 4 will effect coupling of the clutch 24 through the lever 23 so as to effect movement of the wheel operating chain 28. As the chain 28 moves through the driving shaft 26' the cam portion of the member 3 will engage the lever 22 and move the drive clutch operating lever 23 into released position in which position the form member 5 will be moved into a position where the releasing rod l9 will then be disposed in confronting position to the press releasing member I'I--l1'.

It will be apparent from the foregoing that a gluing press has been disclosed which is capable of using adhesives capable of relatively quick drying and the number of presses carried by the wheel I may be varied to suit the particular quality of adhesive which is being used.

What is claimed is: I

1. A shoe gluing press comprising a frame, a rotatable wheel carried by said frame, a plurality of circumferentially spaced apart press members carried by said wheel, each press member including a fixed clamping member, a movable clamping member, a rockable pressure lever carried by said fixed clamping member and having one end thereof secured to said movable clamping member, means engaging the lever intermediate the ends thereof for rockably supporting the lever on said fixed clamping member, a ratchet carried by said lever, a pawl engageable with said ratchet, means for swingably supporting said pawl from said fixed clamping member, a spring constantly holding said pawl and the supporting means therefor in operative position, means arranged on said frame engageable with said lever for moving said movable clamping member to clamping position, and means also arranged on said frame disposed laterally of said latter means for releasing said pawl.

2. A shoe gluing press comprising a frame, a rotatable wheel carried by said frame, a plurality of circumferentially spaced apart press members carried by said wheel, each press member including a fixed clamping member, a movable clamping member, a rockable pressure lever carried by said fixed clamping member and having one end thereof secured to said movable clamping member, means engaging the lever intermediate the ends thereof for rockably supporting the lever on said fixed clamping member, a ratchet carried by said lever, a pawl engageable with said ratchet, means for swingably supporting said pawl from said fixed clamping member, a spring constantly holding said pawl and the supporting means therefor in operative position, means engageable with said lever for moving said movable clamping member to clamping position, means disposed laterally of said latter means for releasing said pawl, and means for rotating said wheel to a position to effect engagement of said pawl releasing means with a pawl.

3. A shoe gluing press comprising a rotatable wheel, a plurality of circumferentially spaced apart press members carried by said wheel, each press member including a fixed clamping member, a movable clamping member, a rockable pressure lever carried by said fixed clamping member and having one end thereof secured to said movable clamping member, means engaging the lever intermediate its ends for rockably supporting the lever on said fixed clamping member, a ratchet carried by said lever, a pawl engageable with said ratchet, means for swingably supporting said pawl from said fixed clamping member, a spring constantly holding said pawl and the supporting means therefor in operative position, a releasing rod secured to said pawl and supporting means, means engageable with said lever for moving said movable clamping member to clamping position, and pawl releasing means including a plunger movable to engage said releasing rod.

4, A shoe gluing press comprising a frame, a rotatable wheel carried by said frame, a plurality of circumferentially spaced apart press members carried by said wheel, each press member including a fixed clamping member, a movable clamping member, a rockable pressure lever carried by said fixed clamping member and having one end thereof secured to said movable clamping member, means for rocking said lever to thereby carry said movable clamping member to clamping position, a ratchet fixed to said lever, a pawl engageable with said ratchet, means supporting said pawl for releasable engagement with said ratchet, a releasing member connected to said pawl and slidably engaging said wheel, operating means for said releasing member carried by said frame, and yieldable means for moving said lever to released position upon movement of said pawl to released position.

5. A shoe gluing press comprising a frame, a

rotatable wheel carried by said frame, means forrotating said wheel intermittently step by step,

a plurality of circumferentially spaced apart member including a fixed clamping member, a press members carried by said wheel, each press movable clamping member, a rockable pressure member including a fixed clamping member, a lever carried by said fixed clamping member and,

carried by said fixed clamping member and havmember, means normally biasing said lever to 5 ing one end thereof secured to said movable released position, the opposite end of said lever 5 clamping member, means for rocking said lever projecting laterally of one side of said wheel, stato thereby carry said movable clamping member tionary lever operating means disposed in a posito clamping position, spring-pressed releasable tion for engagement with said opposite end of 10 holding means for holding said lever in clamping said lever to rock said lever to clamping posi- 10 position, a slidable rod carried by said wheel contion, spring-pressed holding means for said lever, nected to said holding means, and a stationary a releasing member connected to said holding operating means disposed in a position for enmeans and having a portion projecting laterally gagement with said rod to move said holding of said wheel, and a stationary operating means 15 means to released position at a point preceding carried by said supporting means disposed in a 15 the movement of a clamping means to clamping position for engagement with said projecting porposition by said first operating means. tion of said releasing member, said latter operat- 6. A shoe gluing press comprising a rotatable ing means being disposed laterally of said first wheel, supporting means for said wheel, means operating means whereby to release said clampfor rotating said wheel intermittently step by ing means at a point preceding said first operat- 20 step, a plurality of circumferentially spaced apart ing means. press members carried by said wheel, each press OTTO MICHALK.

Images