SU1224336A1 - Device for tightening thread at working place of harness maker - Google Patents

Description

one

The invention relates to leather gantry, saddle sport, saddlery and rigging, namely, devices for tensioning the thread at the workplace.

The aim of the invention is to improve the quality of the seam by adjusting the tension of the thread. FIG. 1 schematically shows the saddler's place, general view; in fig. 2 - the mechanism of non-glue (vice); in fig. 3- thread tightening mechanism; in fig. 4 - the position of the rods at the time of manual sewing, front view; in fig. 5 is the same, top view; FIG. 6 - in the first place the position of the extension of the sucker rods, top view; in fig. 7 shows the state of readiness of the mechanisms in the weft, top view, in FIG. 8 - the same, front view; pas figs. 9 - the position of the mechanisms at the time of thread weaving, front view.

The device for tensioning the thread at the workplace of the saddler, including the holder 1 of the workpiece, in the form of a vise (non-glue), has two oppositely positioned to the holder 1 of the workpiece rocker arm 2. A kinematic chain of each lever is inserted in the kinematic chain; vvede adjustable spring stiffness 3, the ends of which are respectively fastened to the drive rod 4 and the corresponding lever 2. The tensioning device, the thread is mounted on the table - the bed 5, on which the stand b for the workpiece is also attached ok thread. For the thread weigher itself, on each swing arm there are booms 7 for thread weights, on which the thread holders 8 are fixed, while each boom 7 for thread weights together with the thread stopper has the ability of reciprocating Movement in a plane perpendicular to the plane swing the corresponding lever. The drive unit is connected to the pedal 9 of the drive mechanism for the pull, and the holder of the workpiece in the form of a vice is connected to the pedal 10 of the drive mechanism (non-glue) vice. The kinematic chain from each clamp, mounted on the rod, to the pedal of the mechanism of the weaving thread, additionally includes a shaft 11, fixed on the axis of the swinging lever, at the other end of the shaft

24336. 2

A lever 12 is connected, connected by a spring 3 with a lever 13 fixed on the key connection at the end of the shaft. The stops 14 hold the levers 2 in is.

5 running position. The drive rods 4 transfer movement from the system of levers 15 to the levers 12. The spring 16 holds the tightening mechanism in the initial position. SRI. The device also contains a system 17 of the drive levers of non-glue, a spring of a clamp 18 parts in non-clamped, pull 19 for release from these parts, a lever 20 fixed on the shaft 2 1. On the protruding end of this

15 shaft mounted movable sponge non-glue.

The operation of the device is as follows.

When you press the pedal 10 through

20, lever 17, pull 19, and lever 20, the rotational movement is transmitted to shaft 21, as a result. The movable sponge is not glued to the side, a beatable part 22 is inserted into the resulting gap, the pedal 10 is released, the workpiece clamp 18 is effected by spring force. Weft bars 7 are in the rear retracted position so as not to interfere with manual sewing (Figs. 4 and 5).

30 The thread tightening mechanism works as follows.

After flashing three stitches, you need to weave yarns (with manual weaving, this was done on each

35 stitch), for which (fig. 6) the worker hands throws the threads on the clips 8 yarns in the form of pin pins. And, pulling the thread with the hands on itself, pushes the yoke bars 7 (fig. 7).

0 Thereafter, a single turn is made manually, winding the yarn on the clamps 8 of the yarn (Fig. 7 and 8). Lightly holding the thread with the fingers of the handles around the 8 thread fixers, so that they do not sock the pins (Fig. 8.9), press the pedal 10 with their foot, transferring movement through a system of levers 15 to the driving gear 4, loosely seated on the shafts 11 levers 12 are connected

50 through adjusting screws with stiffness-adjustable springs of 3 degrees of weft thread with levers 13 fixed to the keyed joint on shafts 11. The latter perform rotational movement by several degrees, scrolling to the sides swinging levers 2 together with rods 7 UTs (Fig. 9), production UT (the same tf

not) the threads fixed frictionally on the pins of the v.

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pn --- tnrV

At this point, the thread between the rods 7

butGosos - ---:

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Holding the threads around the pins 8 perpendicular to the pins 8 pins for

- ™ rL- ™ rr -

 7

7 hooks 4 MANUALLY (lightly push)

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Then the cycle of operation is repeated.

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 Editor N. Shvydka

Compiled by A. Brazhnikov

Tehred N. Bonkapo Proofreader L. Patay

Order 1893/25 Circulation 378Subscription

VNIIPY USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5

Branch PPP Patent, Uzhgorod, st. Design, And

Fig.9

Claims (1)

. TENSIONING DEVICE THREADS AT THE WORKPLACE OF SHORNIK, incl _; the holder of the workpiece, made in the form of two oppositely positioned holder of the workpiece shaking? ./ thrust and equipped with a thread lock, from L. and wherein, in order to improve the quality of the seam by adjusting the tension of the thread, a knot for adjusting the degree of tightening, the thread, made in the form of a spring adjustable by stiffness, the ends of which are respectively attached to the drive rod, is introduced into the kinematic chain of each swing arm with a drive rod and a lever, each of the thread clamps mounted on a swinging lever with the possibility of reciprocating movement in the plane * perpendicular to II "with s ©