JPS606050Y2 - Sewing machine thread stand device - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an improvement of a thread stand device for a sewing machine that guides a replacement thread to a predetermined position.

``Prior Art J'' Conventionally, the thread stand device of this type of sewing machine leaves the tip of the replacement thread hanging down from the threading hole.

``Problem that the invention aims to solve'' Therefore, in the thread stand device of a conventional sewing machine, the hanging free end of the thread may sway or become tangled due to vibrations of the sewing machine or wind, and this thread may be used next time. It can be very inconvenient when doing so.

Therefore, the present invention was developed in view of the above-mentioned drawbacks, and is a sewing machine that allows the tip of the thread to be easily attached to and removed from a predetermined position and that prevents the tip of the thread from shaking or getting tangled even by vibration or wind. The object of the present invention is to provide a thread stand device.

"Means for Solving the Problems" In line with the above purpose, the structure of the present invention, which is based on the scope of the above-mentioned utility model registration claims, is to solve the above-mentioned problems. A predetermined number of thread bodies Y are placed at appropriate height positions.
A horizontal thread guide arm 5 having a plurality of threading holes 5a is arranged at the upper end of the several holes 2, and a horizontal thread guide arm 5 having a plurality of threading holes 5a is arranged on the upper end portion of the several holes 2. 3 and the horizontal guide arm 5, the base end of the arm 4 is fixed,
The arm 4 also has a plurality of threading holes 6a at its tip, and an engagement window 6b below the threading holes 6a.
A horizontal thread guide arm 6 is fixed, and the engagement window 6b of the horizontal thread guide arm 6 is provided with a thread clamping protrusion 14 on the front surface of the base plate 11, and an engagement window 6b on the rear surface that engages with the retaining window 6b. Matching claw 15
The thread clamping protrusion 14 has a tip 14a curved to either the left or right side of the base plate 11, and a lower end 14b protruding downward by a length approximately equal to the height of the base plate 11. A stopper piece 10a, a thread-clamping protrusion 14' on the front surface of the base plate 11', and an engagement claw 1 on the rear surface that engages with the engagement window 6b.
5' is provided protrudingly, and the thread clamping protrusion 14' has its tip 14a.
The thread clamping piece 10b is curved to either the left or right side of the base plate 11 and the upper end 14b' projects upward by a length approximately equal to the height of the base plate 11'. The lower end 14b and upper end 14b' of ゜14' are the base parts 11, 11' of separate thread stopper pieces 10a, 10b.
A technical measure is taken in which a thread stopper 10 is installed, which is located in front of the thread clamp and which is assembled so that the outer surfaces 14c and 14C' of both thread clamp holding protrusions 14 and 14' are in contact with each other. be.

"Function" Therefore, in the present invention, after guiding the tip of the winding yarn Y placed on the unmounted table 3 through the threading hole 5a and the threading hole 6a, the tip of the winding yarn Y is held in both thread clamps. It can be inserted and held between the protrusions 14 and 14'.

``Example'' Next, an example of the present invention will be described below with reference to FIGS. 1 to 5.

In the figure, 20 is a thread stand device of the proposed sewing machine, and 1 is its stand.

The several units 1 have a rod 2 erected, and an unloaded table 3 on which a predetermined number of wound bodies Y can be placed at an appropriate height position of the rod 2.
The arrangement is as follows.

This unmounted table 3 is made of a horizontal plate on which a plurality of core rods 31 are vertically arranged at predetermined intervals, and a predetermined number of winding yarns Y are placed on the horizontal plate.
The winding core rod 31 is inserted into the winding core cylinder and placed therein.

A horizontal thread guiding arm 5 having a plurality of threading holes 5a is disposed at the upper end portion of the shaft 2.

This threading hole 5a is for guiding the tip of each wound yarn Y placed on the unplaced table 3 through it, and in principle, the same number of wound yarns Y as the number of wound yarns Y placed on the unplaced table 3 is passed through the threading hole 5a. They are arranged at intervals.

Furthermore, several of the unmounted tables 3 and the horizontal thread guide arm 5 are added.
The proximal end of the arm 4 is fixed to the part between the two, and the distal end of the arm 4 similarly has a plurality of threading holes 6a, and the lower part of the threading hole 6a has an engagement window 6b. The provided horizontal thread guide arm 6 is fixed.

The threading holes 6a are for guiding the ends of the threads Y passed through the threading holes 5a, and are arranged in the same number as the threading holes 5a at predetermined intervals.

In this embodiment, the engagement window 6b is in the form of a long hole that extends approximately the entire length of the horizontal guide arm 6 except for both ends, as shown in FIG. It may also be provided.

A thread stopper 1 is provided in the engagement window 6b of the horizontal thread guide arm 6.
0 is installed.

This thread stopper 10 has a thread clamping protrusion 14 on the front surface of the base plate 11, and an engaging claw 15 protruding from the rear surface that engages with the retaining window 6b. Substrate part 11
The lower end portion 14b is curved to either the left or right side of the
A thread clamping piece lea protrudes downward by a length approximately equal to the height of the base plate 11, a thread clamping protrusion 14' on the front surface of the base plate 11', and an engagement that engages with the engagement window 6b on the rear surface. A claw 15' is protrudingly provided, and the tip 14a' of the thread-clamping protrusion 14' is curved toward either the left or right side of the base plate 11, and the upper end 14b' is approximately the same length as the height of the base plate IF. The thread clamping piece 10b protruding upward is connected to the thread clamping protrusion 14° 14' so that both the lower end 14b and the upper end 14b' are in front of the base plate parts 11, 11' of the other thread clamping pieces 10a, 10b. and the outer surface portion 14 of both thread clamping protrusions 14°14'
c, 14c' are combined so that they are in contact with each other,
The engaging claws 15, 15' are fitted into the engaging window 6b by engaging them.

Note that the thread clamping pieces 10a and 10b are connected to the thread clamping protrusion 1.
Either use a plurality of wires each having one 4° 14', or use one formed by protruding a plurality of thread-clamping protrusions 14, 14' on a base plate 11.11' of a predetermined length. A pair of thread clamping protrusions 14 and 14' are positioned below each thread threading hole 6a.

Moreover, these thread stopper pieces 10a and 10b are shown in FIGS. 2 and 3.
As shown in the figure, if the positions of the thread-clamping protrusions 14, 14' are appropriately selected, it is sufficient to prepare a pair of the same-shaped protrusions and combine them in the upper and lower directions with respect to each other.

In the figure, reference numeral 12 denotes a right-angled bent portion arranged on the rear surface of the base plate portion 11.11', which fits into the engagement window 6b to more securely attach the thread stopper pieces 10a, 10b.

Reference numerals 16 and 16' indicate a hook portion disposed at the tip of the engaging claw 15, and 32 indicates a fixed reinforcing arm of the horizontal thread guide arm 6.

"Effect of the invention" Since the present invention has the above-mentioned configuration, if the thread stand device of the invention sewing machine is installed at the rear of the sewing machine, the tip of each wound thread Y placed on the unmounted table 3 can be threaded. holding protrusion 14,
14' can be held in place, making thread exchange work very efficient.

In particular, with this invention, the tip of the thread is held between the thread clamping protrusions 14° and 14', so the tip of the thread does not sway due to the wind or vibrations of the sewing machine, and multiple threads can be held in the correct place. Even if they are guided in close proximity, they will not become entangled.

In addition, in the present invention, since the thread is held between the two thread-clipping protrusions 14 and 14', it is easy to attach and detach the end of the thread. 14.14
It is possible to provide a thread stand device for a sewing machine, which can be held against external forces such as wind and vibration by biting and clamping between the threads, and there is no fear that the holding device will come off naturally.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the thread stand device of the proposed sewing machine, Fig. 2 is a plan view of the thread stopper used in the present invention, Fig. 3 is a front view of a similar stopper, and Fig. 4 is a cross section taken along line A-A. FIG. 5 is an exploded perspective view of the main parts. 1...stand, 2...rod, 3...
Unmounted table, 4...Arm, 5...Horizontal thread guide arm, 5a...Threading hole, 6...
...Horizontal thread guide arm, 6a...Threading hole, 6
b... Engagement window, 10... Thread stopper, 1
0a, 10b... Thread stopper piece, 11.11'...
...Base part, 14, 14'... Thread clamping protrusion, 14a, 14 a/... Tip part, 14b.
...Lower end, 14b'...Top end, 14
cv 14""" outer surface, 15, 15'...
- Engagement pawl, Y... winding thread.

Claims (1)

[Scope of Claim for Utility Model Registration] An unloaded stand 3 on which a predetermined number of wound yarn bodies Y can be placed is arranged at an appropriate height position of the rod 2 erected on the stand 1, and the upper end of the several bars 2 A horizontal thread guide arm 5 having a plurality of threading holes 5a is disposed at the part, and a base end of the arm 4 is arranged between the horizontal thread guide arm 5 and the unmounted table 3 of several rows 2. and fix the arm 4
A horizontal thread guide arm 6 having a plurality of threading holes 6a at the tip thereof and an engagement window 6b provided below the threading holes 6a is fixed, and the engagement of the horizontal thread guiding arm 6 is fixed. The window 6b has a substrate section 11
A thread-clamping projection 14 is provided on the front surface thereof, and an engaging claw 15 that engages with the engagement window 6b is provided on the rear surface thereof. A thread stopper piece lea that is curved and has a lower end portion 14b protruding downward by approximately the same length as the height of the base plate portion 11, and a base portion 11'.
A thread-clamping projection 14' is provided on the front surface of the base plate 11, and an engaging claw 15' that engages with the engagement window 6b is provided on the rear surface of the thread-clamping projection 14'. The thread stopper piece 10b is curved to the other side and has an upper end 14b' projecting upward by approximately the same length as the height of the base plate 11'. The upper end portion 14b' is both located in front of the base end portions 11, 11' of the other thread stopper pieces 10a, 10b, and both thread clamping protrusions 1
This thread stand device for a sewing machine is equipped with a thread stopper 10 in which outer surfaces 14c and 14C' of 4° 14' are combined so as to abut each other.