JPS6312857Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to the shape of the inner pot of the horizontal pot.
The purpose of this is to provide a horizontal hook consisting of a rotating outer hook and an inner hook that is attached to the outer hook so that its movement in the rotational and axial directions is restricted, and into which a bobbin can be removably fitted. To provide an inner pot with a shape that allows easy removal of a bobbin from the pot.

Figures 1 and 2 show the structure of a conventional horizontal hook; 1 is an outer hook that rotates fully in conjunction with a main shaft (not shown) via a gear mechanism; The inner hook 3 fitted with restricted movement in the rotational and axial directions engages alternately with a pair of locking mechanisms 4 formed on the inner hook 2 in synchronization with the rotation of the outer hook 1. A pair of locking pieces configured as follows, 5 indicates the inner pot 2
A bobbin 7 is a bobbin that can be removably fitted into a cylindrical bobbin chamber 6 formed in the bobbin chamber 6.
This is a recess into which a finger is inserted when taking out the bobbin 5, which is formed so as to communicate with the upper part of the bobbin. Figure 3 is the second
FIG. 2 is a longitudinal cross-sectional view taken along a line including the front end surface portion 7a of the recessed portion 7 of the inner pot 2 shown in the figure. As shown in Figure 5, the bobbin 5 is taken out through the paths 5A, 5B, and 5C by inserting a finger into the recess 7, and when the amount of bobbin thread wound on the bobbin 5 is small or not at all, , as shown in the same figure, it is easy to take out the bobbin thread without any trouble, but when the amount of bobbin thread 8 is large as shown in the sixth figure, the bobbin thread 8 is attached to the upper end surface of the bobbin chamber 6 and the lower flange of the bobbin 5. The portions 5a often abut against the circumferential surface of the bobbin chamber 6, making it very difficult to take out the bobbin 5.

The present invention has been devised in view of the above-mentioned circumstances, and the embodiments of the present invention will be explained below with reference to the drawings. Fig. 4 shows an inner pot 10 according to the present invention having the same relationship as Fig. 3. FIG. 11 in the same figure
1 is a bobbin chamber, and 12 is a recessed portion, the detailed explanation of which is the same as in the conventional example shown in FIGS. 1 and 2, and will therefore be omitted. A sliding surface 11a with a constant width a is left in the bobbin chamber 11, and the front end face of the recess 12 is notched by a distance b from the circumferential surface communicating with the conventional recess shown by the dotted line, and gradually converges behind the rear end face 12b. A notch 13 is formed.

The present invention is constructed as described above, and the bobbin 5
rotates as the bobbin thread 8 is paid out, but this rotational movement is caused by the lower flange portion 5a of the bobbin 5 moving toward the inner hook 10.
This is done smoothly by sliding on the sliding surface 11a of the bobbin 5, and the notch 13 is formed even when the bobbin thread 8 is wound to the maximum extent around the bobbin 5 as shown in FIG. Therefore, the lower flange portion 5a of the bobbin 5 does not come into contact with the circumferential surface of the bobbin chamber 11, and therefore the bobbin 5 can be easily taken out by inserting a finger into the recessed portion 12.

As described above, according to the present invention, the bobbin can be easily taken out from the inner pot by applying a small amount of processing to the inner pot, and furthermore, the rotational movement of the bobbin can be performed smoothly without any hindrance. This is an extremely effective idea in practical terms.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the structure of a conventional horizontal pot.
Fig. 2 is a slope view of the inner pot of the conventional example, Fig. 3 is a vertical sectional view taken along a line including the front end face of the recess in Fig. 2, and Fig. 4
The figure is a vertical sectional view of the inner pot according to the present invention in the same relationship as in FIG. It is an explanatory view showing the relationship between the inner pot and the bobbin. In the figure, 1 is the outer hook, 5 is the bobbin, 10 is the inner hook, and 11
11a is the bobbin chamber, 11a is the sliding surface of the bobbin chamber, 12
1 is a recess, and 13 is a notch.

Claims (1)

[Scope of utility model registration request] An inner hook 1 is provided with a rotating outer hook 1 and a cylindrical bobbin chamber 11 in which movement in the rotational direction and axial direction is restricted and in which a bobbin 5 can be detachably fitted.
0, and a recess 1 for taking out the bobbin 5 on the top surface of the inner pot so as to communicate with the upper part of the bobbin chamber 11.
2, the horizontal hook is characterized in that a notch 13 is provided in the upper part of the peripheral surface of the bobbin chamber 11 communicating with the recess, leaving a sliding surface 11a in the lower part. The shape of the inner pot.