JPH0440393Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to slats used in blind curtains installed at windows, entrances, etc. of buildings.

[Prior Art] Conventionally, slats used in blind curtains are known, for example, as shown in FIGS. 8 and 9.

In the above structure, a plurality of rectangular slats 1 are connected in the vertical direction with their outer surfaces 1a in a horizontally open state or in a vertically closed state.

Each slat 1 has U-shaped slat pieces 2 attached to both ends of the sled, for example, by rivets.

One end portion 3a of a crank pin 3 is provided on this slot piece 2 in a protruding manner.

The other end 3b of the crank pin 3 is connected to a link mechanism 4.
is pivoted to the link plate 5, and its tip is attached to the link plate 5.
It is made to protrude from the top. This link mechanism 4 has upper and lower link plates 5 and 6 rotatably connected to form one link unit 7.
A plurality of slats 1 are connected vertically to a crank pin 3 to connect a plurality of slats 1 to each other.

Further, a base 8a of a crank arm 8 is fixed to the tip of the other end 3b of the crank pin 3, and this crank arm 8 is attached to the outer surface of the slat 1.
It is arranged so as to be inclined at a predetermined angle with respect to a.

An engagement protrusion 9 is provided at the tip 8b of the crank arm 8, and this engagement protrusion 9 is connected to the opening/closing guide 1.
It is slidably engaged with the guide groove 11 of 0. An elevating plate 12 is attached to a crank pin 3 attached to the lowest slat 1, and an elevating mechanism such as a chain (not shown) is attached to this elevating plate 12.

The operation of this elevating mechanism causes the link mechanism 4 and crank arm 8 to rise and fall via the elevating plate 12, and through these elevating and lowering, each crank pin 3 is raised and lowered, and each slat 1 is raised and lowered.

In addition, by moving the opening/closing guide 10 in the lateral direction, each crank pin 3 is rotated to rotate each slat 1 from a horizontal position to a vertical position, thereby opening and closing the blind curtain at a fixed position.

[Problems to be Solved by the Invention] However, in the slat for a blind curtain having the above structure, the slat piece 2 is exposed on the outer surface 1a side of the slat 1, so that the slat piece 2 is always visually observed. For this reason, there was a problem that the appearance as a blind curtain was not good.

Further, when the slat piece 2 is fixed to the inner surface of the slat 1, there is a problem in that marks such as spots and rivets are exposed on the outer surface of the slat 1.

[Purpose of the invention] The present invention was made to solve the above problems, and its purpose is to easily attach it to the inner surface of the slat piece and make it invisible from the surface, thereby improving the appearance of a blind curtain. To provide a slat for a blind curtain that improves its appearance.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a slat 20 for a blind curtain in which crank pins 40 are protruded from both ends of the slat 20 in the form of a horizontally long strip. , a guide portion formed by a protruding edge portion having an L-shaped cross section and integrally protruding in parallel along the longitudinal direction of the slat 20 so that the tip hook portions face each other on the upper and lower sides of the inner surface of the slat 20; 23, grooves 33, 33 are formed on the upper and lower end surfaces of a rectangular plate-shaped substrate, and a protrusion 37 is integrally provided at the middle portion of the inner surface of the substrate, and the grooves 33, 33 are provided on the guide portion 23. The slat piece 30 on both sides of the inner surface of the slat 20 is fixed by caulking while being inserted into the projecting edge, and the crank pin 40 is formed protruding from the outer surface, and the hole 42 in the middle part is connected to the protrusion 37 of the slat piece 30. The left and right crank pin mounting plates 41 are provided so as to be freely slidable from side to side and are freely inserted, and the upper and lower side plates 5 are bent inwardly into an L shape.
2, 52 are the groove portions 33 of the slat piece 30,
The slot piece 30 and the crank piece mounting plate 41 are fixed while being inserted into the gap of the slot 33.
It is characterized by having left and right caps 50 that cover the.

[Effect]

In the above configuration, by inserting the grooves 33, 33 of the slat piece 30 into the upper and lower protruding edges of the guide part 23 on the inner surface side of the slat 20 from the side end surface side of the slat 20, and caulking a part of the guide part 23,
Slut pieces 30 are installed on the left and right sides of the inner surface of the slat 20.
to be fixed. The protrusion 3 of this slat piece 30
7, fit into the hole 42 of the crank pin mounting plate 41, cover with the cap 50, and fit the side plates 52, 52 into the grooves 33, 3 of the slot piece 30.
It is inserted into the gap between the outer surface of the guide part 23 of No. 3 and fixed. In this manner, the crank pins 40 are attached to both ends of the slat 20. The crank pin 40 can slide left and right at the position where the hole 42 of the crank pin mounting plate 41 fits into the protrusion 37 of the slat piece 30 to adjust its protrusion length.

[Example] Hereinafter, the present invention will be explained with reference to the drawings.

An embodiment of the present invention is shown in FIGS. 1 to 7.

In this embodiment, the same or equivalent members and parts as in the conventional example described above are given the same reference numerals, and the explanation thereof will be omitted.

In the slat for a blind curtain according to the present invention, as shown in FIGS. 1, 2, and 3, a plurality of strip-shaped slats 20 are arranged with their outer surfaces 21 parallel to each other and in a horizontal or vertical state. arranged vertically.

At the top and bottom of the inner surface 22 side of each slat 20, there are a pair of projecting edges 23a that extend completely along the longitudinal direction.
23a is provided, and each projecting edge 23a is L-shaped to form a space 24 between it and the inner surface 22 to form a guide portion 23. Engaging portions 31 along the upper and lower edges of the slat piece 30 are inserted into the space 24 of the guide portion 23 .

The slat piece 30 includes a rectangular plate-shaped substrate and edge plates 32b, 3 which are L-shaped plates integrally protruding along the upper and lower edges 32a, 32a of the substrate.
2b, and side edges 32a, 32a are formed as rectangular plates having a width and thickness that can be freely inserted into the spaces 24, 24.

This slot piece 30 is provided with grooves 33, 33 formed by side edges 32a and L-shaped edge plates 32b in the engaging portions 31 on both sides thereof.

A U-shaped notch 34 is provided at approximately the middle of the engaging portion 31, and the slat piece 30 is fixed to the slat 20 by caulking the protruding edge 23a located at the notch 34. It is set as follows. Due to this fixation, an insertion space for the cap 50 is formed in the groove 33 between the inner surface of the L-shaped edge plate 32b and the outer surface of the protruding edge 23a, as shown in FIG. 2A.

In addition, the L-shaped edge plate 32 near the inner end of each groove 33
A substantially semicircular notch locking portion 35 is provided at the outer edge of b.

A recess 36 is formed between the L-shaped edge plates 32b, 32b on the inner surface of the slat piece 30, and a rectangular cylindrical projection 37 is integrally protruded from the center of the recess 36.

A mounting plate 41 provided at one end 40a of the crank pin 40 is slidably mounted in the recess 36, as shown in FIG.

As shown in FIG. 5, the mounting plate 41 is formed in a rectangular shape capable of sliding laterally within the recess 36.
A square hole 42 is bored inside the mounting plate 42 so as to come into contact with the protrusion 37 to stop the mounting plate 41 from sliding.

The other end 40b of the crank pin 40 passes through the link plates 5 and 6 and is fixed to the base 8a of the crank arm 8, as shown in FIG.

The cap 50 has a crank pin 4 attached to the recess 36 of the slot piece 30 as shown in FIG.
In order to prevent the mounting plate 41 of No. 0 from coming off from the recess 36, it is engaged with the groove 33.

As shown in FIGS. 6A, B, and C, this cap 50 is formed of a rectangular upper plate 51 and L-shaped side plates 52, 52 provided on both sides of the upper plate 51. Grooves 53, 53 are provided on the opposing inner surfaces of. When the L-shaped edge plate 32b of the slat piece 30 is press-fitted into the grooves 53, 53, the cap 50 is fixed to the slat piece 30.

The upper plate 51 is provided with a contact portion 54 that contacts one end of the slat piece 30.
The L-shaped side plate 52 adjacent to the slat piece 3
An engaging claw portion 55 that elastically engages with the notch locking portion 35 of 0 is provided.

Then, when the claw portion 55 elastically engages with the notch locking portion 35, the cap 50
You will not be able to leave.

Note that FIG. 7 shows a blind curtain 18 constructed using slats with the above-mentioned mounting structure, and this blind curtain 18 consists of a pair of box-shaped side frames attached to the side edges of windows, doorways, etc. (not shown). It is installed on 13,13.

In other words, each side frame 13 is provided with the opening/closing guide 10 shown in FIG. Each slat 20 is guided and held in the side frames 13, 13 via 40.

The upper parts of the side frames 13, 13 are bridged by a case 14 that houses a motor M as a drive source, and the motor M is interlocked and connected to a drive shaft 15, and sprockets 16, 16 are provided at both ends of the drive shaft 15. It is being The upper end of a chain 17 is hung on each sprocket 16, and the lower end thereof is connected to the lifting plate 12.

When the chain 17 is moved up and down via the drive shaft 15 and sprocket by the motor M being driven, each slat 20 moves up and down while extending and contracting the link mechanism 17 via the elevating plate 12, and separately moves the opening/closing guide 10 laterally. By moving the crank arm 8 to rotate, the slat 20 rotates and the upper and lower slats are opened and closed.

[Effect of idea]

As explained above, the present invention provides a guide portion 23 having an L-shaped cross section and upper and lower protruding edges on the inner surface of the slat.
The slat piece 30 is provided with grooves 33, 33 which are integrally formed to protrude and are inserted into and engaged with the guide portions, and the guide portion 23 and the groove 33 are fixed by caulking. It is not visible from the side, and there is no damage when fixing the slat piece 30 for attaching the crank pin 40 to the front side of the slat.
Therefore, it is possible to obtain the effect that the appearance of the blind curtain can be improved.

In addition, the crank pin mounting plate 41 having the crank pin 40 protrudingly formed on the outer surface has a hole 42 in the middle part of the crank pin mounting plate 41 so that it can freely slide left and right on the protrusion part 37 in the middle of the slat piece 30 fixed to the inner surface of the slat. Since the crank pin 40 is provided externally, the length of the crank pin 40 protruding from the slat side end surface can be adjusted, and when adjusting the length, the inner peripheral surface of the hole 42 comes into contact with the protrusion 37. This has the effect that the crank pin mounting plate 41 does not slip out from the slat piece 30, making the length adjustment work easier.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of a slat for a blind curtain according to the present invention, and FIGS. 2A and 2B are
is an exploded view of the sectional view taken along the - arrow in Fig. 1, and Fig. 3 is an internal view of the slat with the slat piece attached.
Fig. 4 is a plan view showing the crank pin attached to the slot piece, Fig. 5 is a perspective view of the crank pin mounting plate, Fig. 6 A is a front view of the cap, and Fig. 6 B is the same as Fig. 6 A. Side view, Figure 6C is Figure 6A
7 is a perspective view of a blind curtain using slats according to the present invention, FIG. 8 is a perspective view of a conventional example, and FIG. 9 is an enlarged view of the main part of FIG. 8. 20... Slut, 22... Inner surface, 23... Guide portion, 30... Slut piece, 31... Engaging portion, 34... Notch, 36... Recess, 40... Crank piece, 41... Mounting plate .

Claims (1)

[Claims for Utility Model Registration] In a slat 20 for a blind curtain in which crank pins 40 are protruded from both ends of the slat 20 in the form of a long strip in the horizontal direction, tip hooks are provided at the top and bottom of the inner surface of the slat 20. A guide portion 23 formed by a protruding edge portion having an L-shaped cross section and integrally protruding in parallel along the longitudinal direction of the slat 20 so that the portions face each other; and a groove portion 33 on the upper and lower end surfaces of a rectangular plate-shaped substrate. , 33, and a protrusion 37 is integrally provided at the middle part of the inner surface of the board, and the grooves 33, 33 are fixed by caulking when inserted into the protruding edge of the guide part 23. In addition, the slat piece 30 is provided at both ends of the inner surface of the slat 20, and the crank pin 40 is formed protruding from the outer surface, and a hole 42 in the middle portion is provided so as to be freely inserted into the protrusion 37 of the slat piece 30 so as to be slidable left and right. In addition, there are left and right crank pin mounting plates 41, and upper and lower side plates 5 that are bent inwardly into an L shape.
2 and 52 are the groove portions 33 of the slat piece 30,
A slat for a blind curtain, comprising: left and right caps 50 which are fixed while being inserted into the gap between the slat pieces 30 and the crank pin mounting plate 41.