JPS6211988Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a brake for a yarn guiding device.

An intarsia pattern can be obtained when knitting one course by using a plurality of yarn guide devices and knitting with different yarns without separating the knitted fabric. When knitting such an intarsia pattern, it is required that each yarn guide device be carried by the carriage only within a predetermined range, and in particular, the rest position of the yarn guide device must be precisely controlled. One purpose of this invention is to provide a brake that satisfies the above requirements.

In addition, in order to relatively displace any movable member provided on the main body of the thread guiding device by using the entraining bolt that has come out of the recess of the thread guiding device, This requires means for non-slidably fixing the main body of the yarn guiding device onto the yarn guide rail. Another object of this invention is to provide a brake device that can meet these requirements.

In other words, in order to solve the above-mentioned problems, this proposal forms a dovetail groove on the back of the main body that fits into the thread guide rail and supports the main body so that it can move left and right, and a dovetail groove on the top surface of the main body for inserting the entraining bolt. In the yarn guiding device, a groove is formed in a direction that crosses the dovetail groove at a suitable place on the back surface of the main body, and a pair of brake rods in a direction that crosses the yarn guide rail is installed in the groove. of,
The upper side is the free end side and is arranged so as to be able to swing freely.
Each upper end of the brake rod projects into the recess at both sides within the recess, and the mutually facing surfaces of each upper end constitute an engagement surface for the driving bolt, and each brake rod The present invention provides a brake for a yarn guide device, characterized in that grooves are formed in which the upper ends of the brakes are slidably fitted to the yarn guide rail only at positions separated from each other. .

To explain the embodiment with reference to the figures, 1 is the main body 2
A pair of dovetail grooves 4 are arranged on both sides of the back surface of the main body 2 to form a pair of dovetail grooves 4 which fit into the thread guide rails 3 and support the main body 2 so as to be able to move left and right. The thread guide device 1 of this embodiment has a recess 5 for insertion, and the thread guide rod 6 is connected to the main body 2.
A pin 7 fixed to and a long hole 8 formed in the thread guide rod 6
The thread guiding rod 6 is provided on the main body 2 so as to be slidable in a direction parallel to the thread guide rail 3. Immediately after the yarn feeding is completed, the sliding hardware 9 is held by the entrainment bolt 10 that has come out of the recess 5,
When pushed indirectly, the sliding metal fitting 9 is displaced relative to the main body 2, and the thread guiding hole 6a at the lower end of the thread guiding rod 6 connected to the sliding metal fitting 9 with a pin opens. The thread guiding device 1 is designed to be oscillated rearward in the direction of movement of the carriage (as shown by the chain line in Figure 1). Then, act on the lever 11 to move the sliding metal fitting 9 to the main body 2.
In order to move the main body 2 in the forward direction of the carriage at the top, that is, to ensure that the main body 2 is then securely locked on the thread guide rail 3, the brake according to the invention is operated as follows. It is provided.

Specifically, in this embodiment, since the width α between the pair of dovetail grooves 4 and 4 is the same as the width of the recess 5, A pair of grooves 16, 16 in the direction intersecting the dovetail groove 4 are formed on both sides of α, and each groove width is slightly opened upward. , a pair of brake rods 15, 15 in a direction intersecting the yarn path rail 3, respectively, are arranged so as to be swingable and vertically movable, with their upper sides being free ends. The brake rod 15 has a tip portion 15a on its free end side.
is slidably fitted to the thread guide rail 3 only when it is displaced within the groove 16 to a position away from the other brake rod 15 and brought into contact with the inner surface 5a of the recess 5. A groove 17 having the same cross-sectional shape as the dovetail groove 4 and having a shorter length l is formed in a direction transverse to the brake rod 15. Further, the pair of brake rods 15 have their grooves 17
When fitted to the thread guide rail 3, each upper end portion 15
a project into the recess 5 on both sides of the recess 5 , and they constitute essentially the engagement surfaces of the recess 5 for the driver bolt 10 .

Further, in each brake rod 15 of this embodiment, the upper wall 17a of the groove 17 is pressed against the upper surface of the thread guide rail 3, and at the same time, the pair of tip portions 15a, 15a are urged in a direction toward each other. A spring 20 is stretched between a pin 18 protruding from the main body 2 side and a pin 19 protruding from the brake rod 15 side. Holes are formed in which these pins 18, 19 and springs 20 are located, and when the main body 2 is not fitted to the thread guide rail 3, the brake rod 15 of this embodiment is in the first position. It is constructed so that it can swing between the position shown by the solid line and the position shown by the chain line in Figure 1, but when the main body 2 is fitted to the thread guide rail 3, The paired brake levers 15, 15 operate as follows.

That is, the pair of brake rods 15, 15 are connected to the front end portion 1 of the brake rod 15 on the front side in the direction of movement of the main body 2.
5a is engaged with the driving bolt 10 (see Fig. 4-1), the brake rod 1 on this side
5 is maintained in a position where its tip 15a is pressed against the inner surface 5a of the recess on the front side in the direction of movement by the entraining bolt 10, so that the groove 17 is slidably fitted into the thread guide rail 3. The tip 15a of the brake rod 15 on the rear side in the direction of movement of the main body 2 is kept in a parallel state, and the top wall 17a of the groove 17 comes into frictional contact with the top surface of the thread guide rail 3, resulting in a delayed hand. , that is, due to this frictional contact, the tip portion 15
a is rotated in the direction in which it comes into contact with the inner surface 5a of the recess on the rear side in the direction of travel, so that the groove 17 is maintained in a parallel state in which it is slidably fitted into the thread guide rail 3. It will be dripping.

Therefore, when engaging the entraining bolts 10 outward from the recesses 5 with the tips 15a of these brake rods 15 in the recesses 5, be sure to use the thread guiding device 1 and insert the carriage with the entraining bolts 10. However, the entraining bolt 10 is the brake lever 1.
5, the main body 2
No matter which direction you push left or right on the thread guide rail 3,
Since the upper end 15a of the brake rod 15, which is the free end on the main body 2 and is located in the forward direction in the movement direction, does not move, it will be inclined with respect to the main body 2 in the direction of the chain line position in FIG. The end of the groove 17 of the brake rod 15 on the front side in the moving direction of the main body 2 engages with the thread guide rail 3, and movement of the thread guiding device 1 on the thread guide rail 3 is prevented. Note that 21 is the tip 15a of the brake rod 15.
This is a guide slope for the entraining bolt formed on the top surface of the .

As described above, according to the brake of this invention, the yarn guide device 1 has a pair of brake rods 15 located on both sides in the recess 5,
The leading ends 15a, 15a of the driving bolt 15 can be used as substantial engagement surfaces of the driving bolt in the recess 5, so that the driving bolt can be carried along with the advancement of the carriage.
When the yarn guiding device 1 is removed from the point a, its overrun is immediately prevented by the tilting action of the brake lever 15 on the forward side in the direction of movement.
The locking state by the brake rod 15 is automatically released when the driving bolt 10 is applied to the tip 15a of the brake rod 15. According to this, all the problems mentioned at the beginning are solved.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway rear view of a yarn guide device equipped with a brake according to this invention, and Fig. 2 is a - of Fig. 1.
Line sectional view Figure 3 is an exploded perspective view showing the relationship between the brake rod and the groove formed in the main body, Figure 4 is an explanatory diagram of the operation, and Figure 4-1 shows the movement to the left. Vertical rear view of the main part showing the permitted state, No. 4
FIG. 2 is a longitudinal cross-sectional rear view of the same main part showing a state in which movement in both left and right directions is prevented. DESCRIPTION OF SYMBOLS 1... Yarn guiding device, 2... Main body, 3... Thread guide rail, 4... Dovetail groove, 5... Recess, 15... Brake rod, 15a... Upper end portion, 16... Groove, 17...
groove.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A dovetail groove is formed on the back of the main body to fit into the thread guide rail and support the main body so as to be able to move left and right, and a recess is formed on the top surface of the main body for the insertion of the entraining bolt. In a certain yarn guide device, a groove in a direction that crosses the dovetail groove is formed at a suitable place on the back surface of the main body, and a pair of brake rods in a direction that intersects with the yarn guide rail are placed in the groove, with the upper side thereof being installed. The upper ends of the brake rods are arranged so as to be swingable as free ends, and the upper ends of the brake rods protrude into the recess at both sides within the recess, and the mutually facing surfaces of the upper ends of the brake rods are attached to the entraining bolts. A groove is formed in each brake rod so that the upper end portions thereof are slidably fitted to the thread guide rail only at positions where the upper ends thereof are separated from each other. The brake of the thread guiding device. 2 Utility model registration claim 1, in which the brake lever is vertically displaceable with respect to the main body.
Brake of the yarn guide device described in Section 1. 3. The brake for a yarn guide device according to claim 2, wherein the brake rod is biased downward by a spring. 4. The brake for a yarn guiding device according to any one of claims 1 to 3, wherein the tip ends of the brake rods are biased by a spring in a direction toward each other.