JPH0249257Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a spool winder, in particular, the pinion that protrudes above the case and the thread that forms the spool at the meshing part of the gear around the bobbin shaft. This prevents you from being bitten.

(Prior art) Conventional thread winders have a cap-shaped cap covering the lower outer periphery of the bobbin, as shown in Utility Model Publication No. 50-939, Utility Model Publication No. 7300, Utility Model Publication No. 52-32299, etc. Although the wide flange protects the thread guided to the thread ball formed on the bobbin from being caught in the gear and pinion provided on the outer periphery of the bobbin shaft and the meshing portion of the gear and pinion, The thread is not always under tension, and when the bobbin drive is interrupted in a timely manner, the thread may hang down and become entangled with the gear or pinion, or the part where the pinion and gear mesh. Since there is a high risk of getting caught, the thread spool winder has the drawback of requiring skill to operate.

(Problems to be Solved by the Present Invention) The above drawback is that although the pinion protruding onto the case and the gears around the bobbin shaft are protected from above by the cap-shaped wide collar around the bobbin shaft, This is thought to be due to the fact that they have a structure that does not securely protect their outer peripheries. Therefore, the present invention aims to solve this problem.

(Means for Solving the Problems) The present invention aims to solve the problems mentioned in the previous section. This invention relates to a spool winder characterized in that a cover is provided integrally with a rotating body.

A preferred embodiment of the invention is described in the following section.

(Example) The drawing shows an example of the present invention. 1 is a case to be attached to a desk, etc., and the internal pivot bracket 2
The rotary shaft 3 is freely supported through the rotary shaft 3, and the rotary shaft 3
A large-diameter bevel gear 4 is fixed to the rotating body 5, which is provided with a small-diameter bevel gear 6 that meshes with the large-diameter bevel gear 4, and is freely rotatable by the upper surface of the bracket 2 so as to protrude from the upper opening 1a of the case 1. do. The shaft part 8 of the pinion 7 is passed through the center of the rotating body 5 by a bushing 9 along its longitudinal edge, and the bushing 9 is attached to the upper surface of the bracket 2.
Insert and secure together.

A protective cover 10 is integrally formed on the rotating body 5 provided with the small-diameter bevel gear 6. As a specific example, a connecting plate 11 is protruded from the upper periphery of the rotating body 5, and a part of the protruding plate is The bottom plate 12 is slightly bent diagonally upward to make the whole oval, and the connecting plate 11
A cylinder 13 centered at the center of the rotating body 5 is formed from the lower surface of a part of the bottom plate 12 with an outer diameter that allows it to be freely rotatably fitted into the upper opening 1a of the case 1. A circular arc wall 15 projects from the left (FIG. 2) edge of the connecting plate 11 by projecting a surrounding wall 14 parallel to the axis of the rotating body 5 and projecting upward from the circumferential edge of the ellipse thus formed. Continue. The upper edge of the enclosure wall 14 is the bottom plate 12
The upper edge of the arcuate wall 15 is parallel to the slope of the connecting plate 1.
It is parallel to 1. An oblique shaft cylinder 16 is provided on the upper surface of the bottom plate 12, into which the lower end of the bobbin shaft is fitted and fixed. Reference numeral 17 denotes a rib that supports the outer periphery of the shaft cylinder 16.

A boss 20 of a gear 19 that meshes with a pinion 7 is fixed to a bobbin shaft 18 whose lower end is fixed to a shaft cylinder 16, and a fitting concave surface 21 is provided around the boss 20 to securely fit a bobbin 24 in a removable manner. Daikyo Kasagata wide tsuba 2
2 is fixed, and the peripheral edge 2 of the wide flange 22 is bent downward.
3 covers the outer periphery of the protective cover 10.

The other 25 are thread rods.

(Function) The present invention rotates the rotating body 5 in conjunction with the rotation of the rotating shaft 3 via the large diameter bevel gear 4 and the small diameter bevel gear 6.
Winding the bobbin shaft 18 and bobbin 24 by rotating them around the axis of the pinion 7 is the same as in the conventional method, but the protective cover 10 covers the outer periphery of the pinion 7 and gear 19 and rotates the pinion at the same axial speed as the gear 19. 7 and pass it through the thread guide rod 25 to the bobbin 2.
Even if the thread Y wound around the thread Y slips down the wide collar 22 due to changes in the rotational speed of the rotating shaft 3, the protective cover 10 prevents the thread Y from coming into contact with the gear 19 or the pinion 7. , the thread Y is not caught in the engagement portion between the gear 19 and the pinion 7.

(Effects) As clarified above, in the present invention, the rotating shaft 3 connects the bobbin shaft 18 and the bobbin 24 to the pinion 7 coaxially with the rotating body 5 via the large diameter bevel gear 4 and the small diameter bevel gear 6 of the rotating body 5. In the conventional mechanism that rotates around the thread guide rod 25 and supplies the thread Y from the thread guide rod 25 to the bobbin 24 to create a traversing ball of thread, the outer periphery of the pinion 7 and the gear 19 that rotates in mesh with the pinion 7 is covered. A protective cover 10 that rotates together with the rotating body 5 is provided integrally with the rotating body, and even if the thread Y becomes slack, it is prevented from getting entangled with the pinion 7 and the gear 19 or entering the meshing part between the pinion 7 and the gear 19. Therefore, it has the effect of completely preventing troubles that conventionally occur when the thread Y becomes entangled with the pinion 7 or the gear 19.

[Brief explanation of the drawing]

The attached drawings show embodiments of the present invention.
The figure is a longitudinal side view, FIG. 2 is a plan view of the protective cover 10, and FIG. 3 is a longitudinal side view taken along the line A--A in FIG. 1 → Case, 3 → Rotating shaft, 4 → Large diameter bevel gear, 5
→ Rotating body, 6 → Small diameter bevel gear, 7 → Pinion, 10
→Protective cover, 11→Connection plate, 12→Bottom plate, 13
→ cylinder, 14 → enclosing wall, 15 → arc wall, 16 → shaft cylinder, 18 → bobbin shaft, 19 → gear, 22 → wide tsuba,
23→periphery, 24→bobbin, 25→thread path rod, Y→
thread.

Claims (1)

[Scope of Claim for Utility Model Registration] A rotating body that rotates interlockingly on the case by meshing a small-diameter bevel gear with a large-diameter bevel gear that rotates inside the case, and a fixed pinion that is loosely inserted in the center of the rotating body.
In a spool winder configured to rotate a gear around the bobbin shaft and a pinion so that the gear rotates around the pinion together with the bobbin shaft, the cylindrical shape protects the gear around the bobbin shaft and the outer periphery of the pinion. A thread spool winder characterized in that a protective cover is provided integrally with a rotating body.