CA1158004A - Shoe sole attaching press - Google Patents
Shoe sole attaching pressInfo
- Publication number
- CA1158004A CA1158004A CA000371203A CA371203A CA1158004A CA 1158004 A CA1158004 A CA 1158004A CA 000371203 A CA000371203 A CA 000371203A CA 371203 A CA371203 A CA 371203A CA 1158004 A CA1158004 A CA 1158004A
- Authority
- CA
- Canada
- Prior art keywords
- pressure
- extending
- shoe
- interlocking
- press according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
ABSTRACT
A shoe sole attaching press in which a pressure member is moved by a relatively small cylinder from a retracted location into engagement with a shoe whereupon an interlocking means locks a relatively large pressure applying cylinder to means for applying force to the pressure member.
A shoe sole attaching press in which a pressure member is moved by a relatively small cylinder from a retracted location into engagement with a shoe whereupon an interlocking means locks a relatively large pressure applying cylinder to means for applying force to the pressure member.
Description
~ 15~0~
FIELD O~ TIIE INVE:NTION
The invention relates to a shoe sole a~taching press in which a pressure applying membar i~3 moved by a small cylinder under low pressure between a retracted position and a shoe engaging position and a large cylinder then causes the member to apply a working force under higher 5 pressure when in engaging position.
-1 15800~
D~SCRIP'l'ION 01~ 'rllE P.RI()R AR'I`
German Patent 10 31 6~1 discloseY a typical 801e cementing press in which a shoe on a last i9 placed on an inflatable pad acting as a presser member f~r the attaching of a sole to a shoe. The pad i~ raised via an extending and retracting mechanism effecting movement in the vertical direction until the lasted shoe comes into contact with an abutment that includes two shoe engaging posts. On attaining this position, a latch engages a toothed rack on the extending means. 'I'he rack together with the latch serve therefore as locking means preventing further bodily movement on the pad away from the abutment. Thereupon follows the inflation of the pad such as with compressed air thus exerting the necessary attaching pressure onto the sole. By the locking of the extending means for the pad by the latch, the high pressure necessary for attaching the sole need not be supplied by the extending means, which has to travel varying distances according to the height of the shoe to be processed. The high sole attaching pressure is produced by the compressed air inflated into the pad exerting high pressure only a short distance.
Since the inflatable pads have always presented certain problems, attempts were made to make do without such a pad. E;or this purpose, cementing presses have been developed, with which the pre~ser member is brought intO contact with the shoe to be processed by meanfl of hydraulic means, which coaxially in itself contains an additional piston, which on account of itY large cross-sectional area produces the final pressure necessary for the sole-cement-attaching. Such hydraulic Iittings are complicated and consequently expensive.
~ 15~0~4 B~IEI? S~JMMARY ()}~ INV~Nl'ION
Accordingly, it i~ an object Or the i~lverltioll to ~implify the construction of cementing presses o~ the types described above. According to the invention, thi~ iE; achieved in thlt locking means forms a link 5 between the extending means and the additional pressure means, which upon becoming interlocked exerts a higher pressure onto the presser member than the extending means is capable of.
By thi~ arrangement, the relatively small si~ed extending means serves merely to move the presser member from a retracted location to a location 10 against the shoe to be processed, without it being neces~àry to apply the high bedding pressure for that purpose over a considerable distance. The high pressure is then produced by additional high pressure means via the locking means establishing a link between the extending means and the additional pressure means, 80 that on completion of the interlocking means I j becoming engaged with the extending means the high pressure exerted onto the interlocking means can bear fully onto the extending means and thereby onto the presser member. The interlocking means can appropriately take the form of a rack portion assigned to the extending means and of a latch, through which acts the force of the pressure means. In this case, the 20 force exerted by the pressure means is transferred through the latch to the rack portion and thus onto the extending means, which consequently exerts the high pressure produced by the pressure means onto the shoe to be processed .
In an alternate form, the interlocking means includes a driving 25 cone assigned to but freely movable on the extending means and a coacting 11580~
tapered clampin~ member relYpc nsive to the f(srce of the pre~9ure means . In this form of embodiment, the driving cone i~3 c]amped firmly on the extending means by the tapered clamping member under pre~sure from the pressure means. The extending means is thus exposed gradually to the preasure of the pressure means in its respectively attained end position.
The design of the extending means can take such a formJ that on the one hand is arranged a piston of a piston-cylinder unit and on the other hand is arranged a pressure bar adjacent thereto, to which is assigned the interlocking means. In that case, the piflton of the piston-cylinder unit takes care of extending the presser member up to the shoe to be processed, while the force of the pressure means is exerted onto the pressure bar via the interlocking means. In that case, the piston-cylinder unit need only be of a size capable of lowering the presser member onto the shoe in a practically force-free manner, ~,vhile the pressure bar serves ~olely S for the transmission of the high pressure, which is supplied by the pressure means. It is however also possible to combine the piston-cylinder unit strictly for the lo~,vering of the presser member together with the presser bar in such a way, that the piston-cylinder unit is contained in the pressure bar, which is then assigned to the interlocking means.
The mode of operation of the pressure means can be further advantageously intensified in that the interlocking means is arranged on a lever, on which i9 acting the force of the pressure means. In that case, the mechanical advantage of the lever can thus be made use of J in that the interlocking means is ~ounted appropriately in such a way, that 2S it lies on the lever between its pivot point and the connection of the pre~sure means, ~lS800~
A particularly advantageous element sui-table for supplying the high pressure is the so-called diaphragm cylinder, which i9 used especially in the motor industry for the application of brakes. Such a diaphragm cylinder can therefore advantageously be used as pressure means, whereby is to be taken additionally into account, that such diaphragm cylinders are as a rule pneumatically operated and that they are capable of producing particu-larly high thrust forces over shor~ distances. Such diaphragm cylinders are readily available and are a particularly moderately-priced structural element which can be used with little or no modification.
According to a broad aspect of the present invention there is provided a press for attaching shoe components having an abutment supporting the shoe components concerned and a presser member movable by extending means in the direction toward the abutment into engagement with the respective shoe component, whereby the extending means operates in conjunction with interlocking means, which upon the presser member reaching the shoe component becomes locked to the extending means. The press is characterized in that the interlocking means forms the link between the extending means and additional pressure means which upon becoming interlocked exerts a higher pressure onto the presser member than the extending means.
1 158~4 DI~'SCE~ TI0~1 OF '['IlI~ l\WIN(IS
FIC~. 1 i9 a c~chematic view o~ a shoe 801e pre~s partly in section ~howing a Ullit for e~tending a pre~ur e member and a separate pressure bar, to which ~orce is supplied by a preslure means via a rack and a latch FIG, 2 is a view similar to FIG, 1 ~howing an alternate form of the inventiOn in which a driving cone and a tapered clamping member are provided in place of the rack and the latch.
;~, ~ ~8004 DESCRIPTIOi~1 0~` THE PREl1'ERRED i~,MBODIMENTS
The press shown in ~igure l cc mprises a base ]. carrying a rubber pad 2 serving as a yielclable support for a shoe 3 to be processed. From the base 1 the stand 4 projects upwardly and carries a cross-beam 5 to S which is affixed a rail 6. Two carrier sectiotl~3 7 ancl 8 may be positioned in a horizontal direction along the rail and mount substantially similar mirror-inverted arrangements for applying pressure simultaneously to the heel seat and the forepart of a shoe supported on the pad 2. For reasons of simplification of the description only the mechanism mounted on the carrier lO section 7 is illustrated schematically in ful] lines while that mounted on the carrier 8 i~ indicated only in dashed ]ines.
E;rom the presser member 9 adapted to engage the heel end portion of the last 13 projects upwardly a piston rod 10 extending down from a cylinder 11 and a pressure bar 12. Piston rod 10 and pressure bar 12 thus lS form extending means for engaging the presser member 9 with the shoe last.
At the start of the operating sequence, the presser member 9 is lowered from a retracted position (not shown) by means of the cylinder 11 until the presser member 9 contacts the top of the last 13. Practically no force need to be applied for this, since it purely concerns an extending 20 mechanism not designated to apply a significant pressure to the last 13.
When the member 9 has reached the position shown in Figure 1, a high pressure is additionally applied to the presser member 9 via the pressure bar 12, which slides in a guide 14 for the purpose of precise alignment only, and is provided at its end opposite the presser member 9 with a rack portion 25 15 engageable by a latch 16. The latch 16 is pivoted on a pin 17 by means of a piston-cylinder unit 113, ~o that it is brought either into or out o~
engagement with the rack portion 15. The rack portion 15 and the latch 16 form the aforementionecl interlocking rnean~. The latch 16 together with the cylinder 18 iB mounted on the lever 19, which is pivoted at 20 on S the carrier section 7. The pin 17 is affixed to the lever 19, 80 that the latch 16 moves with any swinging movement of the lever 19. The le~er opposite the pivot 20 is connected at 21 to a plunger 22, which projects from a pneumatically-operated diaphragm cylinder 23 also mounted on the section 7. When the diaphragm cylinder %3 is pressurized, the plunger 10 22 moves down causing the lever 19 to swing down around its pivot 20~ The latch 16 through its engagement with the rack portion 15 urges the pressure bar 12 down, 80 that the force exerted by the diaphragm cylinder 23 acts on the pressure member 9 with pressure increased by the mechanical advantage ratio of the lever 19. The diaphragm cylinder IS 23 represents a commercial structural element, that is able to apply considerable force to its plunger 22, so that in the case of the illustrated press considerable pressures can be exerted via the pressure bar 12 and the presser member 9 to the shoe 3. After a sole attaching pressing cycle i9 completed, the latch 16 is withdrawn from its engagement with 20 the rack portion lS, so that the presser member 9 can be retracted from the shoe 3 by means of the cylinder 11 without movement of the plunger 22 of the cylinder 23. At the same time the structural elements of the press associated with the carrier section 8 operate in the same way as described above.
The above press action can be controlled in a known way 80 that the 1 158~04 cylinder ll i9 firs~ operated pneum~tic~llly until the presser member 9 contacts the last whereupon a somewhat higher pressure builds up in the supply line to operate a pre~sure--~ensitive valve (not shown), that in turn supplies air pressure to the cylinder 16. After the latch 16 engages 5 the rack portion 15, the pressure continues to build up further, whereupon a valve ~not shown) set to operate at a higher pres~ure, actuates for supplying pres6ure to the diaphragm cylinder 23, which then exert~ the particularly high force required for pressing the shoe. Only one control needs to be provided for both sections of the illustrated press, since the pressure l operating the aforementioned valves can build up only when both presser members 9 and 9' respectively have engagecl the shoe, The same applies correspondingly for the operation of the latch 16 and it~ counterpart on the side of the carrier section 8.
The alternate form of press illustrated in Figure 2 works on the same lS principle as the press according to Figure 1. Consequently, the same structural elements are provided with the same reference numbers as in Figure l. Different on the press according to Figure 2 is the mechanism for initially extending the presser member 9 into engagement with the shoe as well as the design of the interlocking means. On the press according to 20 Figure 2 the presser member 9 is extended from a retracted position (not shown) by means of a cylinder 24, into which e~tends a rigidly mounted piston 25. The piston 25 i8 at the end of a piston rod 26, which i9 suspended from the rail 6. The piston rod 26 i9 provided with an axial bore 27, through which compressed air can be supplied to the cylinder 24. In 25 this case, the cylinder 24 moves relative to the piston 25 in a direction toward ~ :l58,~04 -tO-the shoe 3, whereby the pressure bar 12, in which the cylinder 24 i9 formed i~ taken along with it. Th;s mccha~ m for rnoving the prelsure bar 12 and the presser member 9 corre~porlds n~3 to its function of the piston-cylinder unit 11 accordin~,r to the pre~ in l~igure 1.
When the presser member !) has reached the position E~hown in Figure 2, a high pre~sure is additionally applied onto the pre~;er memher 9 via the pressure bar 12. This ic brought about in the following way: A driving cone 28 having at least one axial slot fits within a clamping member 29 having a complementary internal taper. ~ spring 3~ between the lower end OI the driving cone 28 and the upper end of the guide 14 initially holds the cone with its upper face 34 again~t a fixed stop 35. At this time. the pre~sure bar is freely slidable within the cone during its downward movement to engage the presser member with the shoe last 13 a~ above described. ~\180 at this time a spring 37 between the guide 14 and the lower end of the clamp member 29 holds the clamp member in an uppermost position. The clamp member 29 i8 provided with two trunnions 31 (only one ~howr. in Figure 2) which are engaged by a lever 30, which correspond3 to the lever 19 of the cementing~ press according to Figure 1.The lever acts in the same way as in the layout according to Eiigure 1 to apply the higher working pressure to the pses3er member 9 upon pressurizing the pneumatically-operated diaphragm cylinder 23. The lever 30 through the two trunnions 31, moves the tapered clamping member 29 down upon th~ lever 30 being moved down against the action of spring3 37 when the diaphragm cylinder 23 i9 pressurized. The driving cone 28 i~3 ~upported by the spring 36 while the clamping member 29 i3 moved down 90 the driviIIg cone is 3queezed through the complementary taper in the clamping member and clamped on the pressure bar 12. The l`orce applied ~ y the diaphragm cylinder 23 is then intcnsifiecl allCI transmitted through the lever 30, clamp member 29, cone 28, pressure bar 12 and presser member 9 to the shoe 3.
Upon completion of the pressing operation on the shoe compressed 5 air is passed into the upper chamber 33 oi the cylinder 24 via an inlet 32.
The pressure bar 12 and its presser member 9 are retracted upwardly away from the shoe 3 while the air is exhausted from the bore 27. Also, the pressure in the diaphragm cylinder 23 is exhausted, 90 that the lever 30 is swung up~,vardly under the action of a spring contained in the diaphragm cylinder 23. When the pressure bar 12 is moved upwardly, the face 34 of the driving cone 28 strike~ the stop 35 while clamping member 29 continues to move up via the spring 37 as permitted by the upward movement of the lever 30 whereby the driving cone 28 is unclamped from the pressure bar 12.
FIELD O~ TIIE INVE:NTION
The invention relates to a shoe sole a~taching press in which a pressure applying membar i~3 moved by a small cylinder under low pressure between a retracted position and a shoe engaging position and a large cylinder then causes the member to apply a working force under higher 5 pressure when in engaging position.
-1 15800~
D~SCRIP'l'ION 01~ 'rllE P.RI()R AR'I`
German Patent 10 31 6~1 discloseY a typical 801e cementing press in which a shoe on a last i9 placed on an inflatable pad acting as a presser member f~r the attaching of a sole to a shoe. The pad i~ raised via an extending and retracting mechanism effecting movement in the vertical direction until the lasted shoe comes into contact with an abutment that includes two shoe engaging posts. On attaining this position, a latch engages a toothed rack on the extending means. 'I'he rack together with the latch serve therefore as locking means preventing further bodily movement on the pad away from the abutment. Thereupon follows the inflation of the pad such as with compressed air thus exerting the necessary attaching pressure onto the sole. By the locking of the extending means for the pad by the latch, the high pressure necessary for attaching the sole need not be supplied by the extending means, which has to travel varying distances according to the height of the shoe to be processed. The high sole attaching pressure is produced by the compressed air inflated into the pad exerting high pressure only a short distance.
Since the inflatable pads have always presented certain problems, attempts were made to make do without such a pad. E;or this purpose, cementing presses have been developed, with which the pre~ser member is brought intO contact with the shoe to be processed by meanfl of hydraulic means, which coaxially in itself contains an additional piston, which on account of itY large cross-sectional area produces the final pressure necessary for the sole-cement-attaching. Such hydraulic Iittings are complicated and consequently expensive.
~ 15~0~4 B~IEI? S~JMMARY ()}~ INV~Nl'ION
Accordingly, it i~ an object Or the i~lverltioll to ~implify the construction of cementing presses o~ the types described above. According to the invention, thi~ iE; achieved in thlt locking means forms a link 5 between the extending means and the additional pressure means, which upon becoming interlocked exerts a higher pressure onto the presser member than the extending means is capable of.
By thi~ arrangement, the relatively small si~ed extending means serves merely to move the presser member from a retracted location to a location 10 against the shoe to be processed, without it being neces~àry to apply the high bedding pressure for that purpose over a considerable distance. The high pressure is then produced by additional high pressure means via the locking means establishing a link between the extending means and the additional pressure means, 80 that on completion of the interlocking means I j becoming engaged with the extending means the high pressure exerted onto the interlocking means can bear fully onto the extending means and thereby onto the presser member. The interlocking means can appropriately take the form of a rack portion assigned to the extending means and of a latch, through which acts the force of the pressure means. In this case, the 20 force exerted by the pressure means is transferred through the latch to the rack portion and thus onto the extending means, which consequently exerts the high pressure produced by the pressure means onto the shoe to be processed .
In an alternate form, the interlocking means includes a driving 25 cone assigned to but freely movable on the extending means and a coacting 11580~
tapered clampin~ member relYpc nsive to the f(srce of the pre~9ure means . In this form of embodiment, the driving cone i~3 c]amped firmly on the extending means by the tapered clamping member under pre~sure from the pressure means. The extending means is thus exposed gradually to the preasure of the pressure means in its respectively attained end position.
The design of the extending means can take such a formJ that on the one hand is arranged a piston of a piston-cylinder unit and on the other hand is arranged a pressure bar adjacent thereto, to which is assigned the interlocking means. In that case, the piflton of the piston-cylinder unit takes care of extending the presser member up to the shoe to be processed, while the force of the pressure means is exerted onto the pressure bar via the interlocking means. In that case, the piston-cylinder unit need only be of a size capable of lowering the presser member onto the shoe in a practically force-free manner, ~,vhile the pressure bar serves ~olely S for the transmission of the high pressure, which is supplied by the pressure means. It is however also possible to combine the piston-cylinder unit strictly for the lo~,vering of the presser member together with the presser bar in such a way, that the piston-cylinder unit is contained in the pressure bar, which is then assigned to the interlocking means.
The mode of operation of the pressure means can be further advantageously intensified in that the interlocking means is arranged on a lever, on which i9 acting the force of the pressure means. In that case, the mechanical advantage of the lever can thus be made use of J in that the interlocking means is ~ounted appropriately in such a way, that 2S it lies on the lever between its pivot point and the connection of the pre~sure means, ~lS800~
A particularly advantageous element sui-table for supplying the high pressure is the so-called diaphragm cylinder, which i9 used especially in the motor industry for the application of brakes. Such a diaphragm cylinder can therefore advantageously be used as pressure means, whereby is to be taken additionally into account, that such diaphragm cylinders are as a rule pneumatically operated and that they are capable of producing particu-larly high thrust forces over shor~ distances. Such diaphragm cylinders are readily available and are a particularly moderately-priced structural element which can be used with little or no modification.
According to a broad aspect of the present invention there is provided a press for attaching shoe components having an abutment supporting the shoe components concerned and a presser member movable by extending means in the direction toward the abutment into engagement with the respective shoe component, whereby the extending means operates in conjunction with interlocking means, which upon the presser member reaching the shoe component becomes locked to the extending means. The press is characterized in that the interlocking means forms the link between the extending means and additional pressure means which upon becoming interlocked exerts a higher pressure onto the presser member than the extending means.
1 158~4 DI~'SCE~ TI0~1 OF '['IlI~ l\WIN(IS
FIC~. 1 i9 a c~chematic view o~ a shoe 801e pre~s partly in section ~howing a Ullit for e~tending a pre~ur e member and a separate pressure bar, to which ~orce is supplied by a preslure means via a rack and a latch FIG, 2 is a view similar to FIG, 1 ~howing an alternate form of the inventiOn in which a driving cone and a tapered clamping member are provided in place of the rack and the latch.
;~, ~ ~8004 DESCRIPTIOi~1 0~` THE PREl1'ERRED i~,MBODIMENTS
The press shown in ~igure l cc mprises a base ]. carrying a rubber pad 2 serving as a yielclable support for a shoe 3 to be processed. From the base 1 the stand 4 projects upwardly and carries a cross-beam 5 to S which is affixed a rail 6. Two carrier sectiotl~3 7 ancl 8 may be positioned in a horizontal direction along the rail and mount substantially similar mirror-inverted arrangements for applying pressure simultaneously to the heel seat and the forepart of a shoe supported on the pad 2. For reasons of simplification of the description only the mechanism mounted on the carrier lO section 7 is illustrated schematically in ful] lines while that mounted on the carrier 8 i~ indicated only in dashed ]ines.
E;rom the presser member 9 adapted to engage the heel end portion of the last 13 projects upwardly a piston rod 10 extending down from a cylinder 11 and a pressure bar 12. Piston rod 10 and pressure bar 12 thus lS form extending means for engaging the presser member 9 with the shoe last.
At the start of the operating sequence, the presser member 9 is lowered from a retracted position (not shown) by means of the cylinder 11 until the presser member 9 contacts the top of the last 13. Practically no force need to be applied for this, since it purely concerns an extending 20 mechanism not designated to apply a significant pressure to the last 13.
When the member 9 has reached the position shown in Figure 1, a high pressure is additionally applied to the presser member 9 via the pressure bar 12, which slides in a guide 14 for the purpose of precise alignment only, and is provided at its end opposite the presser member 9 with a rack portion 25 15 engageable by a latch 16. The latch 16 is pivoted on a pin 17 by means of a piston-cylinder unit 113, ~o that it is brought either into or out o~
engagement with the rack portion 15. The rack portion 15 and the latch 16 form the aforementionecl interlocking rnean~. The latch 16 together with the cylinder 18 iB mounted on the lever 19, which is pivoted at 20 on S the carrier section 7. The pin 17 is affixed to the lever 19, 80 that the latch 16 moves with any swinging movement of the lever 19. The le~er opposite the pivot 20 is connected at 21 to a plunger 22, which projects from a pneumatically-operated diaphragm cylinder 23 also mounted on the section 7. When the diaphragm cylinder %3 is pressurized, the plunger 10 22 moves down causing the lever 19 to swing down around its pivot 20~ The latch 16 through its engagement with the rack portion 15 urges the pressure bar 12 down, 80 that the force exerted by the diaphragm cylinder 23 acts on the pressure member 9 with pressure increased by the mechanical advantage ratio of the lever 19. The diaphragm cylinder IS 23 represents a commercial structural element, that is able to apply considerable force to its plunger 22, so that in the case of the illustrated press considerable pressures can be exerted via the pressure bar 12 and the presser member 9 to the shoe 3. After a sole attaching pressing cycle i9 completed, the latch 16 is withdrawn from its engagement with 20 the rack portion lS, so that the presser member 9 can be retracted from the shoe 3 by means of the cylinder 11 without movement of the plunger 22 of the cylinder 23. At the same time the structural elements of the press associated with the carrier section 8 operate in the same way as described above.
The above press action can be controlled in a known way 80 that the 1 158~04 cylinder ll i9 firs~ operated pneum~tic~llly until the presser member 9 contacts the last whereupon a somewhat higher pressure builds up in the supply line to operate a pre~sure--~ensitive valve (not shown), that in turn supplies air pressure to the cylinder 16. After the latch 16 engages 5 the rack portion 15, the pressure continues to build up further, whereupon a valve ~not shown) set to operate at a higher pres~ure, actuates for supplying pres6ure to the diaphragm cylinder 23, which then exert~ the particularly high force required for pressing the shoe. Only one control needs to be provided for both sections of the illustrated press, since the pressure l operating the aforementioned valves can build up only when both presser members 9 and 9' respectively have engagecl the shoe, The same applies correspondingly for the operation of the latch 16 and it~ counterpart on the side of the carrier section 8.
The alternate form of press illustrated in Figure 2 works on the same lS principle as the press according to Figure 1. Consequently, the same structural elements are provided with the same reference numbers as in Figure l. Different on the press according to Figure 2 is the mechanism for initially extending the presser member 9 into engagement with the shoe as well as the design of the interlocking means. On the press according to 20 Figure 2 the presser member 9 is extended from a retracted position (not shown) by means of a cylinder 24, into which e~tends a rigidly mounted piston 25. The piston 25 i8 at the end of a piston rod 26, which i9 suspended from the rail 6. The piston rod 26 i9 provided with an axial bore 27, through which compressed air can be supplied to the cylinder 24. In 25 this case, the cylinder 24 moves relative to the piston 25 in a direction toward ~ :l58,~04 -tO-the shoe 3, whereby the pressure bar 12, in which the cylinder 24 i9 formed i~ taken along with it. Th;s mccha~ m for rnoving the prelsure bar 12 and the presser member 9 corre~porlds n~3 to its function of the piston-cylinder unit 11 accordin~,r to the pre~ in l~igure 1.
When the presser member !) has reached the position E~hown in Figure 2, a high pre~sure is additionally applied onto the pre~;er memher 9 via the pressure bar 12. This ic brought about in the following way: A driving cone 28 having at least one axial slot fits within a clamping member 29 having a complementary internal taper. ~ spring 3~ between the lower end OI the driving cone 28 and the upper end of the guide 14 initially holds the cone with its upper face 34 again~t a fixed stop 35. At this time. the pre~sure bar is freely slidable within the cone during its downward movement to engage the presser member with the shoe last 13 a~ above described. ~\180 at this time a spring 37 between the guide 14 and the lower end of the clamp member 29 holds the clamp member in an uppermost position. The clamp member 29 i8 provided with two trunnions 31 (only one ~howr. in Figure 2) which are engaged by a lever 30, which correspond3 to the lever 19 of the cementing~ press according to Figure 1.The lever acts in the same way as in the layout according to Eiigure 1 to apply the higher working pressure to the pses3er member 9 upon pressurizing the pneumatically-operated diaphragm cylinder 23. The lever 30 through the two trunnions 31, moves the tapered clamping member 29 down upon th~ lever 30 being moved down against the action of spring3 37 when the diaphragm cylinder 23 i9 pressurized. The driving cone 28 i~3 ~upported by the spring 36 while the clamping member 29 i3 moved down 90 the driviIIg cone is 3queezed through the complementary taper in the clamping member and clamped on the pressure bar 12. The l`orce applied ~ y the diaphragm cylinder 23 is then intcnsifiecl allCI transmitted through the lever 30, clamp member 29, cone 28, pressure bar 12 and presser member 9 to the shoe 3.
Upon completion of the pressing operation on the shoe compressed 5 air is passed into the upper chamber 33 oi the cylinder 24 via an inlet 32.
The pressure bar 12 and its presser member 9 are retracted upwardly away from the shoe 3 while the air is exhausted from the bore 27. Also, the pressure in the diaphragm cylinder 23 is exhausted, 90 that the lever 30 is swung up~,vardly under the action of a spring contained in the diaphragm cylinder 23. When the pressure bar 12 is moved upwardly, the face 34 of the driving cone 28 strike~ the stop 35 while clamping member 29 continues to move up via the spring 37 as permitted by the upward movement of the lever 30 whereby the driving cone 28 is unclamped from the pressure bar 12.
Claims (7)
1. A press for attaching shoe components having an abutment supporting the shoe components concerned and a presser member movable by extending means in the direction toward the abutment into engagement with the respective shoe component, whereby the extending means operates in conjunction with interlocking means, which upon the presser member reaching the shoe component becomes locked to the extending means characterized in that the interlocking means forms the link between the extending means and additional pressure means which upon becoming interlocked exerts a higher pressure onto the presser member than the extending means.
2. A press according to claim 1 in which the interlocking means consists of a rack portion secured to the extending means and of a latch through which is exerted the pressure of the pressure means.
3. A press according to claim 1 in which the interlocking means consists of a driving cone slidably mounted on the extending means and a complementary tapered clamping member adapted to clamp the cone on the extending means and through which is exerted the pressure of the pressure means.
4. A press according to one of the claims 1 to 3, in which the extending means consists of a piston rod of a relatively small piston-cylinder unit and of a pressure bar arranged adjacent thereto, to which is assigned the locking means.
5. A press according to claim 3 in which the extending means consists of the piston rod of a piston-cylinder unit formed coaxially in the pressure bar to which is assigned the interlocking driving cone and clamping means.
6. A press according to one of the claims 1 to 3 in which the interlocking means is associated with a lever through which acts the pressure means.
7. A press according to one of the claims 1 to 3, thereby characterized, that a diaphragm-cylinder is employed as pressure means.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8005569 | 1980-02-29 | ||
| DEG8005569.2 | 1980-02-29 | ||
| DE19803007830 DE3007830A1 (en) | 1980-02-29 | 1980-02-29 | ADHESIVE PRESS FOR GLUING SHOE PARTS |
| DEP3007830.9 | 1980-02-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1158004A true CA1158004A (en) | 1983-12-06 |
Family
ID=25784018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000371203A Expired CA1158004A (en) | 1980-02-29 | 1981-02-18 | Shoe sole attaching press |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1158004A (en) |
-
1981
- 1981-02-18 CA CA000371203A patent/CA1158004A/en not_active Expired
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