JPH0131759Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a locking device that allows a connecting string to be easily and reliably locked to a weight mounting plate attached to the bottom of the slat of a vertical blind. Regarding the stop device.

[Prior Art] This type of vertical blind connecting string locking device is conventionally described in, for example, Japanese Utility Model Application No. 53-10151.

This conventional technology is a vertical blind in which a manual operating rod is attached to the master runner, and the manual operating rod is manually operated to cause the master runner to run along a head rail to open and close the blind. In the master runner, manual operation rod mounting holes facing diagonally downward are provided on both the left and right sides of the master runner, and a notch groove is provided in the bottom wall of the master runner to connect the above-mentioned left and right mounting holes. The installation position of the manual operation rod,
This master runner for vertical blinds is characterized in that it can be easily moved to the right or from the right to the left after passing through the notched groove.

[Problems to be solved by the invention] The above-mentioned conventional technology is a hook for locking a slat, but is not for locking a connecting string. There is a serious problem that if the engaging object floats up and then falls down, it is likely to come off.

Separately, as shown in Japanese Utility Model Publication No. 52-29897, a square hole-shaped hanging part is provided at the lower part of the hanging part of a runner made of a flexible and elastic material suspended from a rail. The center of the hanging part is placed close to one side of the hanging part, and the opening is placed close to the side of the hanging part, and the opening has a thin wall on the side of the hanging part from the end of the rising part that makes up the hanging part. A louver mounting device for a vertical blind, characterized in that a mounting piece with a protruding projection and a fitting piece attached to the upper end of the louver is provided with a fitting part in the center of which the uppermost end has a circular cross section and is fitted into the hanging part almost completely. is proposed.

However, in this prior art, a thin protrusion is provided protruding from the end of the rising part constituting the hanging part in the opening to the hanging part side, and a relatively thick engaging part is connected to the rising part through this horizontally oriented protrusion. Since it is necessary to press-fit while bending against the elasticity of the hanging part, the entire hanging part, especially the thick rising part, is bent before the engaging part is press-fitted, which requires a considerable pressing force. In addition, since the engaging portion must be moved downward after the press-fitting start position is determined, there is a problem in that it is extremely difficult to press-fit the engaging portion into the hanging portion.

Further, in the case of a horizontally oriented protrusion, when the engaging part moves upward, the protrusion bends upward, so there is a problem that the engaging part is easily pulled out.

The purpose of this invention is to make it possible to easily and reliably lock a connecting string to a weight mounting plate attached to the bottom of the slat of a vertical blind in order to eliminate the above-mentioned problems. shall be.

[Means for Solving the Problems] The purpose of this invention described above is to provide a weight mounting plate to which a weight is attached, a hook portion having an upper opening formed on the side edge of the weight mounting plate, and a hook portion having an upper opening formed on the side edge of the weight mounting plate. This is achieved by providing elastic protrusions formed obliquely toward the inner surface of the end portion of the hook portion on the side edges on the inner side of the hook portion.

[Function] An elastic protrusion formed diagonally toward the inner surface of the end of the hook portion on the inner side edge of the hook portion having an upper opening formed on the side edge of the weight mounting plate to which the weight is attached is attached to the side edge of the weight mounting plate. By loosening the elastic protrusion and increasing the gap between the tip of the elastic protrusion and the inner surface of the end of the hook, the connecting string can be inserted into the inner surface of the hook via the locking tool or directly. Can be locked.

Even if the connecting cord or its locking device rises and then falls after this insertion and locking, the tip of the elastic protrusion will come into contact with the inner surface of the end of the hook, or the elastic protrusion that is about to make contact will cause the The connecting string and its latching tool will not come off from the hook.

[Example] Hereinafter, an example of this invention shown in the drawings will be described in detail.

1 to 3 show an example in which the locking mechanism of this invention is applied to a synthetic resin weight fixture attached to the lower end of each slat of a vertical blind.

This weight attachment tool 1 has a slit 11 in the center for inserting a slat, and the weight attachment plates 13a and 13 are folded in half around this slit with a hinge 12.
protrusions 14a, 14b are protruded from the respective peripheral edges of b, and opposite step portions 15a, 15b are formed on the end faces;
When these end surfaces come into contact with each other, they are configured to be locked by the stepped portion, and although not shown, a plate-shaped weight is attached to the inside of each weight attachment plate.

2 is a locking mechanism of this invention, which includes a weight mounting plate 13a.
Approximately C having an upper opening 22 at the upper side edge 23a of
A letter-shaped hook portion 21 is provided protrudingly, and the side edge 23
The upper end surface 24a of a is horizontal and the end 2 of the hook portion 21
The end face 24b of the cylindrical member 3b is formed with a downward slope toward the side edge 23a.

Also, a side edge 23a on the inside of the hook portion 21
The wedge-shaped elastic protrusion 26 is arranged such that the tip 25 is located inside the lower edge of the end surface 24b of the hook portion 21.
to protrude.

That is, when an upward loosening force is applied to the elastic protrusion 26 as shown in FIG. Then, as shown by the chain line in FIG.
It has a wedge-shaped elastic protrusion 26 projecting from the side edge 23a, which is inclined to allow the insertion of the locking tool 5 and the connecting cord 4 into the lateral edge 23a.

The locking mechanism of this invention is constructed as described above, and as shown in FIG.
2 shows a state in which a locking tool 5, in which the tip of a wire bent into a substantially U-shape is entwined with the string, is attached to the locking mechanism 2.

To attach the locking tool 5 to the locking mechanism 2, the locking tool 5 attached to the connecting string 4 is pushed into the hook 21 through the upper opening 22 of the hook 21, as shown in FIG. At this time, the elastic protrusion 26 is bent downward as shown by the chain line in the figure against the elasticity of the protrusion 26.
By widening the distance between the tip 25 and the inner surface of the end 23b of the hook 21, a gap larger than the diameter of the locking tool 5 is created, so the locking tool 5 can be inserted into the hook 21 and locked. can.

When the locking is completed, the elastic protrusion 26 returns to its original state due to its elasticity as shown by the solid line in FIG. End 2 of section 21
The upper opening 22 can be closed by the elastic protrusion 26 because it is in contact with or almost in contact with the inner surface of the upper part 3b.
The locking tool 5 does not come off the hook portion 21.

In addition, in this invention, the connecting string 4 itself may be curved into an inverted U shape and inserted into the hook portion 21 to be locked, and as shown in FIG. The same effect can be obtained by providing a cutout 27 having an upper opening 22 and a hook 21 in the cutout 23a, and further providing an elastic protrusion 26 diagonally downward from the side edge of the cutout 27 toward the hook 21.

[Effects of the invention] As stated above, this invention adopts a means to solve the above-mentioned problems, so that elastic protrusions provided diagonally on the inner side edge of the hook having an upper opening are used to absorb the elasticity of the elastic protrusion. The upper opening opens by resisting and loosening, and when the force applied to the elastic protrusion is removed, the elastic protrusion returns to the direction in which the upper opening of the hook part is closed due to its elasticity.The structure of the locking mechanism is simple, and the locking mechanism is simple. The tool can be of a simple configuration, and it can be easily installed, and even if the locking tool 5 or the connecting string 4 floats up and then comes down, it will not come off the hook, and the connecting string or Since the external force applied through the locking device is received by the hook portion, it has effects such as safety.

[Brief explanation of the drawing]

The figures show one embodiment of this invention. Figures 1 to 3 are perspective views of the locking mechanism applied to a weight mount, and Figure 4 shows this locking mechanism applied to a vertical blind. FIG. 5 is an elevational view showing another embodiment of the main part of this invention. 21... Hook portion, 22... Upper opening, 23a, 2
3b... end, 24a, 24b... end face, 25...
...Tip, 26...Elastic protrusion.

Claims (1)

[Scope of utility model registration request] A device for locking a connecting cord of a vertical blind includes a weight mounting plate 13a to which a weight is attached, a hook portion 21 having an upper opening 22 formed on a side edge 23a of the weight mounting plate 13a, and the hook. The end portion 23 of the hook portion 21 is attached to the side edge 23a inside the portion 21.
A connecting cord locking device for a vertical blind, characterized in that each of the vertical blinds is provided with elastic protrusions 26 formed diagonally toward the inner surface of the blind.