JPS6246689Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention prevents the cord reel from falling off by fitting the engaging hole into the engaging part protruding from the rotary body of the cord reel, and the cord reel can be installed freely for rotation. This relates to the stop lever part of the cord reel.

<Prior Art> Conventionally, in a stop lever attached to a rotating barrel that is guided by a guide groove provided in the main body of the cord reel when loading and unloading the cord, the stop lever is attached to the rotating barrel a as shown in FIG. It was attached by making rivet d rotatable and caulking rivet d through washer c.

<Problems to be solved by the invention> This conventional method requires an extra number of parts because it uses rivets and washers, and has the disadvantage that the work of caulking the rivets is difficult and time-consuming. Furthermore, in recent years, there has been a demand for smaller cord reels.

In view of the above-mentioned conventional drawbacks, the present invention improves this.
The invention was devised to provide a stop lever that does not require rivets or washers, is easy to assemble, requires a small number of parts, is easy to assemble, and allows smoother rotation of the stop lever. To provide a stop lever part of a cord reel which allows the stop lever to be made short and small, thereby making it possible to downsize the entire cord reel.

<Means for Solving the Problems> Therefore, in the present invention, the stop lever part is composed of a stop lever 3 and a cylindrical engagement part 2 protruding from the lower surface of the rotary drum 1, and the stop lever 3 is connected to one end of the engagement part 2. A circular engagement hole 3b that fits into the joint part 2 is bored, and a guide protrusion 3a that is guided by a guide groove is provided at the other end of the hole. When the stop lever 3 is assembled, the stop lever 3 is fitted into the engaging portion 2, with the projection 2a for preventing the stop lever 3 from coming off protruding in the opposite direction to the guiding projection 3a. The above-mentioned problems are solved by providing a stop lever part of a cord reel, which is characterized in that it is attached as a stop lever part.

<Function> By forming a protrusion 2a on the lower end of the engagement part 2 in the direction opposite to the guide protrusion 3a when the stop lever 3 is assembled, the engagement part 12
Since the stop lever 3 can be attached to the rotary barrel 1 by simply fitting the engagement hole 3b of the stop lever 3 into the stop lever 3, assembly becomes very simple.

Furthermore, by making the protrusion 2a protrude in the above-mentioned direction, the stop lever 3 will not come into contact with anything between the engaging part 2 and the guide protrusion 3a when the assembly of the stop lever 3 is completed. Therefore, the rotational resistance is eliminated, the guide protrusion 3a slides reliably, and the stop lever 3 can rotate more smoothly.

<Examples> The present invention will be described below with reference to drawings shown in examples.

FIG. 1 shows a first embodiment, in which a cylindrical engagement portion 2 is integrally provided on the lower surface of a rotating body 1, and
When the stop lever 3 (to be described later) is assembled to the lower end of the engaging portion 2, the guiding protrusion 3 of the stop lever 3 is attached to the lower end of the engaging portion 2.
A protrusion 2a is formed in the opposite direction to a to prevent the protrusion from coming off. On the other hand, a circular engagement hole 3b is formed at the other end of the stop lever 3, which is provided with a guide protrusion 3a at one end, and is slightly larger than the cylindrical diameter of the engagement portion 2 of the rotating barrel 1. The process of fitting the stop lever 3 into the engaging portion 2 of the rotary barrel 1 as shown in FIG. 2 will be explained with reference to FIGS. 3 and 4. First, as shown in FIG. The stop lever 3 is vertically erected on the protrusion 2a side of the engaging part 2 of the barrel 1, and the engaging part 2 of the rotary barrel 1 is inserted into the engaging hole 3b of the stop lever 3.
When the projection 2a is inserted and the stop lever 3 is tilted in the direction of arrow A, the fitted state shown in FIG. 4 is achieved. In this assembled state, the stop lever 3 cannot be removed from the engaging portion 2 of the rotating barrel 1.

Furthermore, when assembled as described above, the fulcrum where the engaging part 2 and the stop lever come into contact is at position A as shown in FIG. There is no contact with anything, there is no rotational resistance, the guiding protrusion 3a slides reliably, and the stop lever 3 can rotate more smoothly.

FIG. 5 shows a second embodiment of the present invention, and shows the first embodiment of the invention.
The difference from the embodiment is that the engagement hole 3b of the stop lever 3 is provided with a fitting groove 3c having a shape corresponding to the protrusion 2a of the engagement part 2 of the rotary barrel 1. When the stop lever 3 is assembled, the operating range of the guide protrusion 3a is changed. It is located in a position that does not coincide with the protrusion 2a. In this case, horizontally fit the stop lever 3 into the engaging part 2 of the rotating barrel 1 from below so that the protruding part 2a of the engaging part 2 of the rotating barrel 1 fits into the fitting groove 3c of the stop lever 3, and then When the angle is turned, the stop lever 3 will not come out from the rotating barrel 1.

The overall structure of the cord reel having the above-mentioned stop lever section will be briefly explained with reference to FIG.
A protruding portion 7 having a locking groove 6 for locking the center end portion thereof is provided protrudingly, and a guide groove 9 is formed in the bottom portion 8. The guide groove 9 will be explained with reference to FIG. 7. It has a drawer-only section 9a, a winding-only groove 9b, a crossing diagonal groove 9c, and a crossing V-groove 9d. The crossing V-groove 9d is provided with a stepped portion so as to be gradually higher than the drawer-only groove 9a at the central connecting part to form a side wall 9e, and the height of the winding-only groove 9b side is the same as the winding-only groove 9b. be. The crossing oblique groove 9c is connected to the drawer-only section 9a by providing a stepped portion that gradually becomes higher from the side of the take-in groove 9b to form a side wall 9f. Furthermore, blocking walls 9g and 9h are provided upright between the drawer-only section 9a and the winding-only groove 9b.
10, 10, 10 are screw holes for attaching the top cover, and 11 is a cord outlet. The overall structure will be explained again based on FIG. 6. The locking portion 1 that locks the outer end of the band-shaped spring 5 below the rotating body 1
2a (shown in FIG. 1) is integrally formed with a recess 12 for storing a cord 13 on the upper surface.
b is formed by the upper wall 12c. As described above, one end of the stop lever 3 is fitted into the engaging portion 2 formed integrally with the rotating body 1 so as to prevent it from dropping and to be rotatable. Reference numeral 14 indicates a terminal mounting member attached to the upper surface of the rotating body 1, reference numerals 15 and 16 indicate terminals, and 17 indicates an upper lid, with a contact terminal 18 in the center and a contact terminal fixing member 19.
It is installed together with.

Next, a state in which the stop lever 3 is slidably guided in the guide groove 9 will be briefly described. When the cord 13 is successively pulled out, the stop lever 3 moves to the pull-out portion 9a.
When the cord 13 is released, the rotating drum 1 is reversed by the winding elasticity of the belt-shaped spring 5, and the stop lever 3 enters the crossing V-groove 9d to stop the rotation. When the cord 13 is pulled a little again, the stop lever 3 enters the winding-only groove 9b from the crossing V-groove 9d.
When the cord 13 is released, the stop lever 3 is guided to the winding groove 9b and rotates to wind up the cord 13 to the end. When the cord 13 is pulled out again, the stop lever 3 is guided to the crossing oblique groove 9c and moves from the winding groove 9b to the pull-out section 9c.
Then, the process moves to step a and the above steps can be repeated.

<Effects of the invention> As described above, the present invention has the engaging hole 3b formed in the stop lever 3, and the cylindrical engaging part 2 integrally protruding from the lower surface of the rotary barrel 1. By providing the protrusion 2a on one of the lower ends, the stop lever 3 can be attached to the rotating barrel 1 by simply fitting the engaging portion 2 of the rotating barrel 1 into the engaging hole 3b of the stop lever 3, making assembly very easy. It's easy.

Furthermore, when the stop lever 3 is assembled to the lower end of the engagement part 2, the stop lever 3 is prevented from falling off due to the protrusion 2a provided in the opposite direction to the guide protrusion 3a, and the engagement part 2 and the guide protrusion are Between 3a,
In the stop lever 3, there is no resistance due to contact, and the guiding protrusion 3a slides reliably, allowing the stop lever 3 to rotate more smoothly. Further, from this, even if the stop lever 3 is made short and small, it can be reliably slid by only its own weight and guided by the guide groove 9.

The present invention described above does not require rivets or washers unlike the conventional stop lever installation, so the number of parts is small, and it is economically convenient.
In addition, the present invention provides a stop lever portion of a cord reel in which the stop lever 3 can be shortened and the cord reel as a whole can be made smaller accordingly.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is an exploded perspective view of the first embodiment, Figure 2 is an assembled perspective view of the one in Figure 1, Figures 3 and 4 are explanatory views of the main parts, and Figure 5 is the second embodiment. 6 is a central sectional view showing the entire cord reel, FIG. 7 is a plan view of the cord reel main body, FIG. 8 is a perspective view showing the stop lever portion of a conventional cord reel, and FIG. 9 is a cross-sectional view showing the entire cord reel. FIG. 3 is a cross-sectional view of the stop lever section when the assembly is completed. DESCRIPTION OF SYMBOLS 1...Rotating body, 2...Engaging part, 2a...Protrusion, 3...Stop lever, 3a...Guiding protrusion, 3b...Engagement hole, 3c...Fitting groove, 4...
Cord reel body, 9...Guide groove, 13...Cord, 17...Top lid.

Claims (1)

[Claims for Utility Model Registration] 1. By sliding the protruding piece of the stop lever provided in the cord reel on the bottom of the cord reel body, it is guided by the guide groove provided at the bottom of the cord reel body, and the stop lever is guided by the stop lever. Accordingly, in a stop lever part used in a cord reel that pulls out and retracts a cord against the winding elasticity of a band-shaped spring, the stop lever part is connected to a stop lever 3 and a cylindrical engagement part 2 protruding from the lower surface of the rotary drum 1. The stop lever 3 has a circular engagement hole 3b that fits into the engagement portion 2 at one end, and a guide protrusion 3a that is guided by a guide groove at the other end. year,
On the other hand, a protrusion 2a for preventing the stop lever 3 from coming off is provided at the lower end of the engagement part 2 so as to protrude in the opposite direction to the guiding protrusion 3a when the stop lever 3 is assembled. A stop lever part of a cord reel, characterized in that a stop lever 3 is fitted and attached to a joint part 2. 2 Insert the protrusion 2 of the engagement portion 2 of the rotary barrel 1 into the engagement hole 3b.
A request for registration of a utility model characterized in that a fitting groove 3c having a shape corresponding to a is bored at a position that does not coincide with the projection 2a within the operating range of the guide projection 3a when the stop lever 3 is assembled. The stop lever portion of the cord reel described in item 1.