DE69590C - Nailing machine for the production of shod soles for footwear - Google Patents

Description

IMPERIAL

PATENT OFFICE

The purpose of this machine is to nail any part of the heel or sole to the Shank itself or separated from it and with this nailing the advance of the footwear by the machine awl itself to enable its tip from damage is spared. The length of the nails to be driven into the footwear and their - mutual distance in the leatherwork can be changed at will. The nails stand on the inside when nailing Soles of unequal thickness slightly forward. The leather factory can be double-rowed at all or alternately nail double and single rows.

Another device reduces that of the base when the leatherwork is advanced pressure exerted on it and at the same time allows the surface to rise or fall lower, according to the variable thickness of the leather work:

Fig. 1 of the accompanying drawings is a front view, Fig. 2 is a side view and Fig. 3 is a rear view of the new nailing machine. 4 and 5 are front views, FIG. 6 is a section in plan through line AB of FIG. 4, on an enlarged scale, of the head part of the single-row nailing machine shown in FIGS. 1, 2 and 3. Fig. 7 is a front view and Fig. 8 is a side view, also on a larger scale, of the head part of a machine for nailing two rows at the same time or alternately one and then two rows. Fig. 9 and ι o are a vertical section and plan, Fig. 11 is a side view and Fig. 12 is a plan of two different forms of bases of the nailing machine. 13 is a rear view, and FIGS. 14 and 15 are side views of FIGS. 4, 5 and 6.

The frame α of the nailing machine carries the head in which the drive shaft c, which is provided with a disk dd ^l at the front end, is mounted. The disc dd ¹ has a variable stroke and moves the head part b \ which the latter carries the awl pusher e, the driver f and the neck g and thereby receives a lateral, intermittent movement.

The footwear h to be nailed is carried by the base (anvil) i and advanced through the head part b ¹ and the awl e ¹ , which the latter can pierce the footwear in whole or in part. The nail material k, in this case in the form of a wire with an angular cross-section, is fed from a roll k ' into the machine by means of a feed device. It consists of a pair of feed rollers II ¹ , the former Z of which is fastened to an axle m mounted in the head part b and is provided at the rear end with a ratchet wheel m ¹ (see FIG. 13). On the same end, a lever m ' ^{d provided with a pawl m 2} is loosely rotatable, the former engaging in the ratchet wheel m ^l and the latter set in motion by the thumb m ⁱ attached to the drive shaft c. The feed ^{roller Z 1} is loosely rotatable at the upper end of a tension pin m ^h , which the latter is mounted in the sleeve m ⁶ and is under the action of a spiral spring m ¹ , as well as at the lower end, provided with a thread, a nut m ^s with a handle . The spiral spring m ¹ presses the roller Z ¹ against the wire k, for the purpose of feeding it,

while when changing the nail material k, the roller Z ^{1 can be} withdrawn and thereby lifted out by rotating the nut m ^s.

In order to be able to cut the nails at will, a screw bolt m ⁹ adjustable to the lever m ^{a is} mounted in the bearing c ¹ , whereby the decrease of the lever m ^s and the distance to the thumb m ^{4 can be} decreased or increased and therefore also the feed of the nail material k takes place accordingly. The nail material k is guided by the pair of rollers 1 Z ¹ into a stationary guide piece n, which also acts as a part of the scissors. The latter is adjustable in the fixed head part b in the direction of the drive shaft c by screws n ¹ . The part η is in contact with another similar part of the scissors g, which at the same time serves as a neck for driving in the nail and is attached to the head part b ¹ , in such a way that both parts η and g together form a scissors. After the neck g has been brought into connection with the channel n ^{2 of} the scissors part n, Fig. 5, by the movement of the head part b ¹ and the nail material k has been guided into the neck of g , the disk d causes the head part b ^{1 to recede} and thereby brings the neck g into its previous position (FIG. 4), a nail being cut from the material k and, guided over the hole previously formed in the footwear h , hammered into the same by means of the driver f. The nail spacing in footwear h can be changed at will by changing the im. Head b mounted carriage b ² adjusted relative to the disk d. To enable the nailing of two rows at the same time or alternately one and then two rows, two pairs of feed ^{rollers / Z 1} Z ' ² P, two neck channels gg ¹ and two drivers ff \ Fig. 7 and 8, as well as two inlet channels n ² n ² and two awls e ¹ e ² used.

The outer pair of feed rollers Z ² Z ³ and the awl e ¹ can be set in and on the job, and nailing can be done in gaps in the inner row. For this purpose, in Ahlen slider e is a holder e ^3, · which the awl e carries ^1, vertical movement and a spring e * exposed, the latter of which the awl e ^l holding up when besides activity, but by the slider e against the holder e ³ attached lever e ⁵ can be brought into its lower or working position.

For the nailing of the soles and heels on the upper itself, the base surface i is made of metal (Fig. 4 and 5), while those for nailing soles separate from the upper with an exchangeable leather surface i \ Fig. 9 and 10, or metal surface i ² , FIGS. 11 and 12, which has a channel z ' ³ , and is used to receive the nail ends and the awl e ¹ . . Of the . Channel z ' ³ is widened at one end to allow sharp curves to be nailed. In order to be able to change the distance between two rows of nails at will, a guide piece 0, Fig. 13 to 15, is attached in the upper part of the frame α , which can be adjusted laterally against the footwear h by means of a disc o ¹ , which is on the in the frame α mounted and at the front end with arm ο ³ provided axis o ^{2 is} attached.

The foot of the nailing machine, against which the footwear h is pressed by the base i , consists of two parts pp ¹ , Fig. 14 and 15. The former is on the guide piece o by the adjusting screws p ² , Fig. 13, and the latter in one piece η adjustable by the adjusting screws p ³ against the neck g. By changing the vertical position of the foot part ρ when shifting the wedge j arranged between the latter and the head part b? ⁴ , the distance between the working surface of the footwear h and the lower end of the neck g can be changed as desired and thereby the protrusion of the nails can be achieved.

To facilitate in nailing machines the i from the base 2, Fig., To decrease the same during the displacement of the pressure exerted 2 and 3 h on the footwear, and thereby the same, the connection ^ is ν between the comb lever and the tread or support lever u formed in such a way that when the footwear h is advanced, the lowering of the base i automatically occurs in accordance with the changing thickness of the footwear.

For this purpose the rod between the comb lever ν and the step lever or pad lever u is separated into two parts v ¹ and u ^l . The upper part v ¹ is provided with a bracket w which is guided vertically in the arm a ^{1 of} the frame a and is lined on the lower part with leather w ^{1 '.} The arm α ¹ is used. also for vertical guidance of a rod x ¹ , which carries a segment or a rotatable disk χ at the lower end, which rests in the bracket w and is eccentrically rotatably connected to the lower rod part M ^1. The length of the rod v ¹ is variable and the rod x ^l can be adjusted vertically, whereby the mutual position of the disc χ and the bracket w can be changed in accordance with the average thickness of the footwear to be nailed h.

When the footwear is advanced through the awl e ¹ , the comb lever ν ^{lifts the rod x 1} provided with washer through the rod v ^l and the bracket w, and the latter lifts the step or underlay lever u, whereby the underlay i is partially released from the upward pressure

by contracting the spiral spring u ² , while with a variable thickness of the sole of the footwear h the disk χ rotates on the rod x ¹ and thereby. the connection between the comb lever ν and the trit or pad lever i automatically shortened or lengthened as required.

Claims (3)

Patent claims: ι. A nailing machine for the manufacture of shod soles for footwear, in which the movable part g of a shearing device η g , which simultaneously serves as a nail and hammer guide, is connected to a horizontally displaceable slide b ^l , by means of which part g of a wire k fed in at intervals Horizontal movement of the slide b ^l cut nails and at the same time brought them into the path of a hammer f stored in the slide b ¹ , the latter driving the nails through the scissors and guide part g into the footwear as soon as the same by means of the one also stored in the slide b ^l Awl e ^{1 has been} pricked and then pushed forward through this itself, the direction of movement of the footwear being opposite to the direction of the carriage during shearing. 2. A nailing machine as described in i. marked type, if the same, in order to be able to change the distance of the leather from the scissors part g , the movable scissors part respectively. Nail and hammer guide part g is connected to the same adjustable stop jaws ρ ρ ¹ , of which ρ is vertically displaceable and ρ ^{Λ is} interchangeable. 3. A nailing machine of the type identified under 1., provided that the horn i carrying the work piece is connected to a comb lever ν that pulls it down at intervals by a two-part rod v ¹ u ^l , the parts of which are connected by a bracket n> , the connection between w and .u ^{1 is} effected by a disk χ mounted in n> , on which the rod u ^l engages eccentrically, for the purpose of an automatic shortening of the rod v with a variable thickness of the workpiece ^! u ^x bring about. In addition 3 sheets of drawings.