DE1190839B - Lasting machine for shoes - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

A43d

German class: 71c-23/00

Number:
File number:
Registration date:
Display day:

Sch 34474 VII a / 71 c

March 4, 1961

April 8, 1965

The invention relates to a winder for footwear with a two pivotable Spreader with arms.

In the known by hand and / or controlled by foot lever, the Shaft material to prevent the formation of creases on the toe of the shoe after the stroking movement has taken place the scissors or the flexing belt just before the forward and closing movement of the scissors Pressing the hand open and at the same time spreading the individual fingers of the operator upright and crossed out. Of course, this requires a certain degree of skill on the part of the operator, Quite apart from the fact that with stronger and coarser shaft materials the strength of the human Hand is no longer sufficient.

According to the invention it is therefore proposed that the winder be modeled on the human hand assign force-controlled expansion members. This device consists of two pivotable Support arms, each leg of which, for example, three independently resiliently pressing downwards Has a pressure ram, with a further resilient one in the axis of rotation of the support arm leg Pressure stamp is provided.

The two support arm legs are also connected at their axis of rotation to a rod head, the is slidably guided in an arm of the head on an up and down piston rod. On the head of the piston rod that can be moved up and down is also a horizontally lying cylinder attached. The piston rod of this cylinder carries a yoke, and from there connecting levers lead to the side arms of the two pressure arm legs.

In the rest position, the spreading device is in the raised position, i. H. in shoe bottom removed Direction, with the support arm legs closed and the cylinder lying horizontally extended forward, d. H. directed towards the heel of the shoe. By adjusting a valve with which the clamping arm is also controlled at the same time, the piston rod with the spreading device located on it of the vertical cylinder moves downwards, whereby the individual resilient pressure ram come into contact with the bottom of the shoe. The stroke of the vertically movable piston rod becomes limited by a stop and with the impact on this stop another valve for adjusts the horizontally lying cylinder. In this way the two are still closed Support arm leg with the shoe lasting machine for shoes on the bottom of the shoe

Applicant:

Shoe machine company Hanke & Co.

m.b.H.,

AIf eld / Leine, Hannoversche Str. 45

Named as inventor:
August Allgayer, Alfeld / Leine

resiliently resting pressure rams in the closed state a bit up to an adjustable one The stop moves forward and thereby erects the shaft material. When moving continuously of the piston rod beyond the adjustable stop, the two support arm legs move finally to the outside and brush the shaft material over the strip edge onto the liftable one Scissors out. Hold the scissors during the subsequent forward and closing movement the individual plunger unclamped the shaft material until it is gradually removed from the scissors is placed on the insole. Depending on the size of the protruding shaft material one or the other pressure stamp sooner or later becomes ineffective.

If particularly thin shaft materials or blanks with large perforations are processed, so it can happen that the spreading device is too strong on the shaft material to be folded down Train exercising. According to the invention it is therefore provided that the spreading device is out of operation and out of the To bring the operator's grip area. For this purpose, the horizontally lying cylinder is on Head piece of the piston rod of the vertical cylinder mounted on a pin so that the Swivel up the horizontally lying cylinder with the articulated spreading members and use a locking pin can be set in this position. At the same time means are provided to the vertical lying Shut off the cylinder from the pressure medium supply.

In this regard, it should be noted that it is already in the case of winding machines with an automatic workflow it is known to provide spreading devices. However, these known devices only exist from two automatically controlled fingers to

509 538/71

Claims (1)

3 4 width and clamping of the shaft edge, which is a support arm 64, which has a bearing 65 for receiving on the shaft edge with its entire surface on the rod 63. Replace in both spreader links. On the other hand, it is not yet known that there are no 55 present except for the two heirs Tragannschenkel with a number of independently mentioned pressure stamp 61 three further springs spring-loaded pressure stamp to be provided. Since the 5 and resiliently mounted pressure stamp 66. The Shaft material may be different in thickness. The plungers 61 and 66 are made by compression springs can, is sometimes sharpened and also parts of the 67, which on the one hand on the spreader limbs 55 Lining and the cap over the insole edge and on the other hand on through pins 68 of the protrude, feel the individual springs resiliently rest on the plunger, pressed down and supported plunger befür the shaft material point io by nuts 69 in their extension movement Point off and stay with it until the boundaries. Located on both spreader limbs 55 beat the shaft material through the scissors in each case a bolt 70, at the end of a constant contact. In a spreader with tension spring 71 is suspended, which the two This is not possible with only two controlled fingers, the spreader member leg 55 is held in a closed position whereby the shaft material returns to the genur when there are differences in thickness or when it is open is insufficiently stretched. brings back closed position. The spreading described according to the invention in the rest position is the bottom of the vertical device takes place, for example, in a pinch-up cylinder 48 and the left side of the machine for footwear according to the patent application horizontally lying cylinder 54 with pressure means Sch 29340 VIIa / 71c use. However, it is so loaded, i. H. the spreading device is located not only on the machine described there, in excess of the shoe removed and in the shoe lengthwise reversible, but can also be positioned in any other direction towards the heel of the shoe. Becomes a tweaking machine can be used accordingly. If the palm of the hand 72 is actuated, a main control valve is activated Other features and details of the invention 73 reversed, causing the top of the cylinder result from the following description and 25 48 is fed with pressure medium. Moved by it the schematically shown drawing, with the spreading device towards the shoe bottom, and the winder is only dealt with insofar as the individual pressure stamps 61 and 66 sit on as in connection with the spreading device, the shoe bottom is resiliently resilient. The after is required. It shows the stroke movement of the cylinder 48 in the downward direction F i g. 1 is a diagrammatic overall view of the open 30 limited by a stop, not shown, tweaking machine, and at the same time as it hits this F i g. 2 shows a diagrammatic view of the gusset, a four-way machine head with swung spread valve 75 reversed. In this way, the device, right side of the horizontally lying cylinder 54 Fig. 3 is a side view of the spreading device, 35 acted upon by pressure medium, whereby the spreading F i g. 4 the top view of the spreading device with the device towards the tip of the shoe, but still in FIG closed spreader members, closed state, moves, and it remains F i g. 5 the top view of the spreading device with closed until a head piece 62 has an still closed spreader members in the first stroke adjustable impact 76 touches. At this time the piston movement, 40, the spreading members 55 are incessant as a result of the 6 shows the top view of the spreading device with progressive movement of the piston rod 57 curved expansion links, caused by the connecting levers 59 and 60, F i g. 7 a control scheme of the entire work - to carry out a scissor-like opening movement, sequence of the winder. So that this movement takes place smoothly and evenly, On the upper side of a stand 1 is a die 45 located on the axis of rotation of the spreading members 55 influencing the spreading device in the vertical direction - a tension spring 77, which on the other hand is provided on the yoke 58, a cylinder 48, on the piston of which is suspended. An adjusting rod upper side 49 (FIG. 7) on the piston rod 57, a head piece 50 with a stop ring 78 delimits the opening which is attached to a pin 51 and a locking pin 52. Spreader member leg 55, as soon as the stop ring 78 is also located in the head piece 50, a bolt 53 pushes against a cover 79 of the cylinder 54.
To accommodate a horizontally lying cylinder, the expansion device should be used when processing 54 to influence expansion members 55. A thin shaft material or blanks with piston rod 57 of the cylinder 54 has a yoke 58 at its large perforations or at the end of the hand and foot lever two connection-controlled operation out of operation and outside levers 59 and 60 are brought with the two legs of the 55 of the area of the operator, so the spreader members 55 are connected and the latter one the locking pin 52 is released and give the spreader pivoting movement. The expansion is pivoted about the bolt 53 until the link legs 55 are rotatable in a pin 61 and the locking pin 52 engages in a bore 80. At the same time, a shut-off valve 81 is also closed at the same time as resiliently afterwards, such a generous pressure ram for the spreading movement 60 that the vertical cylinder 48 is formed during the shaft material. Of the usual spreading work sequence in the idle position, ie in the high-limbed legs 55, the one that has a recess remains in the driven position.
in which a head piece 62 with an attached Flattened rod 63 engages. In this way patent claims:
are the two spreader limbs 55 by means of the 65 also designed as a plunger pin 61 in 1. Lasting machine for footwear with a their pivotable axis of rotation articulated. Last carrier, an insole hold-down device, A flexing belt and pinch scissors are located on the horizontally lying cylinder 54, with the insole hold-down device can be raised and lowered in a direction perpendicular to the shoe bottom, the Walk belt and pinch scissors attached to a common carrier and via transmission links are movable and closable perpendicular to the shoe bottom, as well as with a Spreader which has two swing-out support arms, characterized in that in Each support arm (55) has a plurality of pressure stamps which are vertically flexible in the direction perpendicular to the shoe bottom (61 and 66) arranged and that the support arms (55) are articulated to one another. 2. Lasting machine for footwear according to claim 1, characterized in that one (61) the plunger (61 and 66) is designed as a bearing for both support arms (55). 3. Lasting machine for footwear according to claim 1 and 2, characterized in that each plunger (61 and 66) is spring-loaded and the tension of its spring (67) - to adapt to different types of upper leather - is adjustable. 4. Lasting machine for footwear according to one or more of claims 1 to 3, characterized characterized in that the spreader pair in the vertical as well as in the horizontal direction a power drive (48 and 54) can be moved. 5. Lasting machine for footwear according to Claims 1 to 4, characterized in that the spreader pair - for removal during manual operation - pivotable about a pin (51) and can be fixed in the horizontal position by a pin (52). For this purpose 2 sheets of drawings 509 538Π1 3.65 © Bundesdruckerei Berlin