JP2680268B2 - Winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for winding a cord, a hose, a tape, a cord or the like on a winding reel by utilizing the elasticity of a spiral spring.

[0002]

2. Description of the Related Art Conventionally, this type of winding device is shown in FIG.
4 and FIG. 15. This winding device 31
Is a take-up reel 32 in which a pair of left and right reel bodies 32A and 32B are connected to each other to form a winding barrel portion, and a support body (not shown) on which the reel 32 is rotatably fitted and mounted and which is not shown. A support shaft 33 whose both ends are fixed to each other, a spiral spring 35 (usually referred to as a mainspring) incorporated in a spring fitting portion 34 recessed in the center of one reel body 32A, and a spring retaining member 36 and the like. ing. In addition, 38 is a code.

The spiral spring 35 is finished as a finished product in a production factory, and a C-shaped ring (not shown) is fitted on the outer periphery of the spiral spring 35 so that the spiral state is not broken before being assembled in the reel body 32A. After removing the C-shaped ring in the assembly factory of the winding device 31, the winding reel main body 3
2A is assembled, and both ends of the spring retaining member 36 are inserted into locking holes 37 provided in the reel body 32A.

[0004]

By the way, in the above-mentioned prior art, when the spiral spring 35 is assembled to the spring fitting portion 34 of the reel body 32A, the C-shaped ring must be removed from the spring 35 and the spring Since it is necessary to fit the retaining member 36, there is a problem that assembly workability is poor.

The present invention has been made in view of the above situation, and an object of the present invention is to eliminate the C-shaped ring for temporarily holding the spiral spring and to eliminate the need for the attaching / detaching process. (EN) Provided is a winding device capable of improving workability, shortening time, and reducing costs.

[0006]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, according to the present invention, in the winding device in which the winding reel is rotated by the elastic force of the spiral spring to wind the cord or the like, the spiral spring maintains the spiral state before being incorporated in the winding reel. It is characterized in that it is incorporated in the winding reel while being set in the cylindrical container-shaped cassette.

Further, the present invention is characterized in that the cassette is provided with means for engaging with the take-up reel. Furthermore, the present invention is characterized in that a slit for locking the outer end of the spiral spring is provided on the outer peripheral wall of the cassette.

[0008]

According to the present invention, the spiral spring is inserted and set in the cassette at the production factory thereof, and when it is mounted on the take-up reel, it is assembled in the take-up reel main body while being set in the cassette. Therefore, the steps of mounting and removing the C-shaped ring are unnecessary. Further, the locking means provided in the cassette, by simply inserting the cassette into the take-up reel body,
Since it is locked to the main body, a spring retaining member is unnecessary. Further, since the outer peripheral end of the spiral spring is fitted and locked in the notch provided in the outer peripheral wall of the cassette, the work of locking the spiral spring on the take-up reel body is unnecessary, and the assembling workability is good and the time is Can be shortened.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 12 show an embodiment of the present invention, the winding device 1
Includes a take-up reel 2 including a pair of left and right take-up reel bodies 2A and 2B, a support shaft 3 that rotatably supports the reel bodies 2A and 2B, a spiral spring 4, a spring fitting cassette 5, and the like. Both ends of the support shaft 3 are fixed to a casing body (not shown) of an electric vacuum cleaner or the like, and a cord 7 is wound around the winding barrel portion 6 of the take-up reel 2. Although not shown, a power supply connection member for supplying electricity to the cord 7 is provided on the reel unit 2B.

The reel bodies 2A and 2B are shown in FIGS.
As shown in FIG. 3, the winding barrel portions 6A and 6B are provided.
The axially opposed end walls 8A and 8B of A and 6B are connected and integrated by a screw 9 to form one cylindrical winding barrel portion 6, and the support shaft 3 is provided in the respective axial holes 10 and 11. It is fitted loosely. A spiral spring fitting recess 12 is formed in one reel main body 2A, and a power supply connection member fitting recess 13 is formed in the other reel main body 2B so as to be open outwards.

As shown in FIGS. 1 to 4, the reel main body 2A has a peripheral wall of the spiral spring fitting recess 12, that is, a winding barrel portion 6 of the reel main body 2A.
A is stepped, and a rectangular cassette locking hole 14 is provided in the opening-side large-diameter portion 12A at a symmetrical position with respect to the center thereof, and the large-diameter portion 12A is provided at one position in the circumferential direction of the winding barrel portion 6. And the accommodation recess 15 of the spiral spring outer peripheral end 4A is provided over the small diameter portion 12B, and the shaft hole 1 is formed in the opposing end wall 8A.
A boss portion 16 having 0 is projected and a screw hole 17 is provided.

At the outer end of the support shaft 3 on the reel body 2A side, a spring locking groove 18 parallel to the axis is provided on the outer circumference, and the inner peripheral end 4B of the spiral spring 4 is fitted and locked. It has become so. Further, the reel body 2 of the support shaft 3
A power supply connection member (not shown) is fixed to the end portion on the B side so as to be housed in the fitting recess 13. As shown in FIGS. 5 to 12, the spring fitting cassette 5 is in the shape of a cylindrical container made of synthetic resin, and has a shaft hole 19 at the center of the disc portion 5A.
The outer peripheral wall 5B has an outer diameter that fits into the fitting recess small diameter portion 12B of the reel body 2A, and a thick flange portion 5C is formed on the outer periphery of the disc portion 5A. 5C is adapted to be fitted into the fitting recess large diameter portion 12A of the reel unit 2.

The flange portion 5C of the cassette 5
6 to FIG. 10 at symmetrical positions with respect to the center of the shaft hole 19.
As shown in FIG. 3, a notch recess 20 is provided along the outer peripheral wall 5B, and notch portions 21 that communicate with the outer peripheral surface from both circumferential ends of the recess 20 are provided to form a cassette locking piece 22. A locking projection 23 is provided on the outer peripheral surface of the locking piece 22 near the end of the outer peripheral wall 5B, and the locking projection 23 is fitted and locked in the cassette locking hole 14 of the reel unit 2A. It is designed to prevent rotation and retain. The outer peripheral surface of the locking projection 23 has a tapered surface 23A with a small diameter on the outer peripheral wall end side, and the locking piece 22 is bent against the elasticity of the tapered surface 23A to guide the locking hole. It is inserted in 14.

Further, as shown in FIGS. 11 and 12, the flange portion 5C of the cassette 5 has a cutout portion 24 at a position corresponding to the accommodation recess 15 of the reel body 2A.
And the outer peripheral wall 5B corresponding to the one notch 24
A spring insertion locking slit 25 is provided on the slit 2.
5, the outer peripheral end 4A of the spiral spring 4 is inserted and locked, and in the spring locking portion 26, a part of the outer peripheral wall 5B is thick as shown in FIG. The cassette 5 is fitted into the accommodation recess 15 to prevent the cassette 5 from rotating.

The spring 4 is loaded and set in the cassette 5 after the product is completed in the production factory, and the outer peripheral end 4A is inserted and locked in the slit 25. Then, the spring 4 set in the cassette 5 is put in the cassette 5 as shown in FIG. 13 so that the spring 4 can be stacked and packed, and is transported to a reel assembly factory. Therefore, it is not necessary to fit the C-shaped ring on the spiral spring 4. That is, since the diameter of the inner circumference of the outer peripheral wall 5B is smaller than the diameter of the inner circumference of the flange portion 5C, the spiral spring 4 fitted to the inner circumference of the outer peripheral wall 5B projects from the end of the outer peripheral wall 5B. However, the projecting portion of the spring 4 slightly enters into the flange portion 5C for positioning at the time of packing and for preventing positional deviation. Then, the outer peripheral wall 5B of another cassette 5 is placed on the flange portion 5C of one cassette 5.

When incorporating the spiral spring 4 into the take-up reel 2,
With the cassette 5 still set in the cassette 5, the cassette 5 is placed in the spring fitting recess 12 of the reel body 2A, the engaging portion 26 corresponds to the accommodation recess 15 of the reel body 2A, and the engaging piece 22
Are positioned and pushed so as to respectively correspond to the locking holes 14 of the reel body 2A, the locking projections 23 of the locking pieces 22 are fitted and locked in the locking holes 14 of the reel body 2A, and the cassette 5 is fitted. It does not rotate in the recess 12.

In this way, when the cassette 5 is fitted in the spring fitting recess 12 of the reel unit 2A, the cassette 5 can no longer be pulled out even if it is intended to be pulled out. It will not be pulled out from the main body 2A. In addition, when it is inevitable to pull out the cassette 5 from the fitting recess 12 of the reel body 2A, the locking piece 22 fitted and locked in the locking hole 14 from the outer peripheral side of the reel body 2A is replaced with a tool such as a screwdriver. The cassette 5 can be easily removed from the reel body 2A by pushing the support shaft 3 toward the support shaft 3 and pulling out the engagement projection 23 from the engagement hole 14. At this time, the spiral spring 4 is It does not come off from 2A.

That is, the winding device 1 of this embodiment comprises a reel body 2 having a cylindrical winding drum portion 6 around which a cord 7 is wound, and the reel body 2 is concentric with the winding drum portion 6. Shaft holes 10 and 11 for rotatably supporting the support shaft 3 are provided. On the other hand, the spiral spring 4 is housed in a cassette 5, and the cassette 5 is a shape-retaining member when the spiral spring 4 is transported and packed, and also a retaining member when the reel spring 2 is assembled.

Then, the inner end portion of the spiral spring 4 housed in the cassette 5 is locked in the locking groove 18 of the support shaft 3, whereby the cassette 5 is rotated by the support shaft 3 via the spring 4. The cassette 5 is mounted so as to be capable of being relatively non-rotatably mounted only by being fitted into the reel unit 2A. The present invention
The present invention is not limited to the above-described embodiment. For example, a retaining member may not be provided on the cassette 5 and a retaining member similar to the conventional one may be separately employed. Further, the cassette 5 may be rotated around the reel body 2A. The design of the stopper mechanism, the structure of the locking means, etc. can be appropriately changed.

[0020]

As described above, according to the present invention, in the winding device in which the winding reel is rotated by the elastic force of the spiral spring to wind the cord or the like, the spiral spring is incorporated in the winding reel. It is characterized in that it is incorporated into the take-up reel while being set in the cylindrical container-like cassette which retains the spiral state before, so that a C-shaped ring or the like for temporarily retaining the spiral spring is retained. In addition to eliminating the need for attaching and detaching the spiral spring, the spiral spring can be stored and easily transported, and the workability of incorporating the spiral spring into the reel unit can be improved, the working time can be shortened, and the cost can be reduced.

Further, the present invention is characterized in that the cassette is provided with means for engaging with the take-up reel, so that a spring slip-out preventing member is not separately prepared and the cassette is also provided. Can be fitted and locked with one touch, the assembling workability and the time can be shortened, the number of parts can be reduced, and the cost can be reduced.

Further, the present invention is characterized in that the outer peripheral wall of the cassette is provided with a slit for locking the outer end of the spiral spring, so that the structure of the reel unit can be simplified. .

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of the reel unit according to the embodiment.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a front view of the cassette according to the embodiment.

FIG. 6 is a right side view of FIG. 5 with a part thereof cut away.

FIG. 7 is a rear view of FIG. 5;

8 is a cross-sectional view taken along the line BB of FIG.

9 is an enlarged view of part C in FIG.

FIG. 10 is a view on arrow D of FIG.

11 is a view taken along the line EE of FIG.

FIG. 12 is a sectional view taken along line FF of FIG. 11;

FIG. 13 is a partially cutaway side view showing a packaging form of the spiral spring-containing cassette in the embodiment.

FIG. 14 is a front view showing a conventional example.

FIG. 15 is a side view of FIG. 14;

[Explanation of symbols]

 1 Take-up device 2 Take-up reel 2A Reel body 2B Reel body 4 Spiral spring 5 Cassette 5B Outer peripheral wall 7 Code 22 Locking piece 25 Slit

Claims (3)

(57) [Claims] 1. A winding device in which a winding reel is rotated by the elastic force of a spiral spring to wind a cord or the like, wherein the spiral spring maintains a spiral state before being incorporated in the winding reel. A winding device which is incorporated in the winding reel while being set in a container-shaped cassette. 2. The winding device according to claim 1, wherein the cassette is provided with locking means for locking the winding reel. 3. The winding device according to claim 1, wherein the outer peripheral wall of the cassette is provided with a slit for locking an outer end of a spiral spring.