JPH048595B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to a vertically expandable support provided on both sides of the louver row, which is arranged at regular intervals vertically. Pertaining to a type of blind that is supported so that it can be raised and lowered by a mechanism, and whose louvers are pivotable about their respective horizontal axes between approximately horizontal and approximately vertical positions. Although it can be used as an indoor blind, it is especially suitable for use as an outside blind that can be attached outside the window by adding a storm door function and a security mechanism in addition to the normal sunlight shielding function. It's about blinds.

[Background of the invention]

2. Description of the Related Art Conventionally, blinds have been used to prevent sunlight from entering windows, and shutters installed outside windows as rain shutters or security devices have been widely used. However, conventional shutters open and close by connecting the louvers at their upper and lower edges and winding or folding them up, so when the shutter is closed, it has a security effect, but it does not let in any light at all, and some Even if a lighting effect could be obtained, it would only be possible to obtain a slight opening by shifting the connection part of the louver. On the other hand, blinds allow sunlight and ventilation by rotating the louvers, but since each louver is independent, there is a gap between the louvers even when the louvers are fully closed, making it difficult to prevent crime. I couldn't have expected it.

Recently, various types of outside blinds using louvers made of rigid materials have been proposed, which have the above-mentioned lighting and ventilation functions and security functions using shutters. An example thereof is shown in FIGS. 6 and 7.

In FIGS. 6 and 7, 1 indicates the louver of the blind, and 2 indicates the head box. A horizontal operating shaft 3 is disposed within the head box 1, and a rotating drum 4 is mounted on the horizontal operating shaft 3. A louver support link mechanism 5 (see FIG. 7) for raising, lowering, and rotating the louver is arranged in the side case of the blind. The link mechanism 5 includes a pair of vertical links 7 connected vertically by a pivot 6.
, and a plurality of horizontal links 8 that horizontally connect every other pivot shaft 6 in each vertical link row, and the shafts 9 that protrude horizontally from each side edge of each louver 1 are horizontal links. It is attached to the center of 8. The upper end of the above pair of vertical link rows is
It is pivotally connected to the side surface of the rotating drum 4 by means of a pivot shaft 10 . Therefore, when the rotating drum 4 is rotated clockwise or counterclockwise in FIG. 7 by the operating shaft 3, the left and right vertical link rows 7 of the ladder-shaped support link mechanism move relatively up and down. The horizontal link 8 is rotated, and the louver is rotated accordingly.

In addition, the lower end of the lifting chain 12 is hooked onto the chain wheel 11 mounted on the operating shaft 3 and is hoisted up and lowered by the rotation of the operating shaft 3.
By being connected to the lower end of the link mechanism 5 and winding up and lowering the lifting chain 12, the link mechanism is extended and contracted up and down, and the louver is raised and lowered.

When raising and lowering the louver, if the louver is in a vertical position, the louvers will rub against each other and it will not be possible to raise and lower the louver smoothly.
When the louver is raised or lowered, its inclination is limited to, for example, an angle of approximately 45 degrees, and the louver is configured to be in a fully closed state when the lowering is completed. The mechanism for regulating the rotation of the louver in this manner will be explained with reference to FIGS. 8 to 10.

In FIG. 8, the operating shaft 3 is rotated in either direction by the motor 13. In FIG. A drive drum 14 is fixed on the operating shaft 3, and this drive drum 14
The louver rotating drum 4 is rotatably engaged thereon. A clutch spring 15 is disposed inside the drive drum 14, and both ends of the clutch spring 15 protrude inward to form claws 15a, 15a. (See FIG. 9) A fan-shaped protrusion 4a is integrally formed on the louver rotating drum 4, and this protrusion 4a has claws 15a, 15.
It is placed between a.

A rotation regulating member 16 of the louver is rotatably mounted on the operating shaft 3, and this rotation regulating member includes a protrusion disposed between the claws 15a of the clutch spring on the opposite side of the protrusion 4a of the rotating drum 4. Part 16a
are integrally formed. Rotation of the rotation regulating member 16 is stopped by an engaging pin 17 attached to the base portion, as shown in FIG. In this state, when the motor 13 is rotated in the direction of lowering the louver, the drive drum 1 engaged with the operating shaft 3 is rotated.
4 is rotated in the lowering direction of the louver, and the clutch spring 1
5, the claw 15a of the clutch spring 15 comes into contact with the protrusion 4a of the rotating drum 4, causing the rotating drum 4 to rotate integrally in the same direction, so that the collar 4b of the fan piece formed on the rotating drum 4 touches the side surface of the rotation regulating member 16. The clutch spring 15 rotates until it makes contact (for example, the position where the louver is rotated at an angle of 45 degrees), and then the claw 15a of the clutch spring 15 comes into contact with the protrusion 16a of the rotation regulating member 16, thereby loosening the clutch spring and rotating the rotating drum. Although it is stopped at that position, the operation shaft 3 continues to rotate, and the lifting chain 12 continues to move by the chain wheel 11 fixedly attached to one shaft, so that the louver comes to a predetermined lowermost position. When the louver reaches a predetermined lowermost position, the engagement pin 17 that restricts the rotation of the rotation restriction member 16 is released by the engagement pin release member that is fixedly attached to the lifting chain in advance. Therefore, the projection 14b formed on the rotation regulating member 16 moves to the final end position of the slit 18 in the slit 18 formed in the base, and the louver rotates to the vertical position. For example, a louver rotation mechanism is provided that rotates the louver to the vertical position at the lowest position after the louver has descended to the lowest position in a state of inclination of 45 degrees, but this mechanism itself is not related to the present invention. , will not be detailed here. (If necessary, please refer to Utility Application No. 189520, filed previously by the present applicant.) In the conventional outside blind as described above, even when the louver is lowered to the fully closed state, Each louver can be manually rotated to a horizontal position and therefore does not function as a complete shutter.

[Object of the Invention] The object of the present invention is to lock the louvers to each other in the fully closed state, so that in addition to functioning as a blind by providing light and ventilation, all the louvers are fixedly connected in the fully closed state. To provide an outside blind which also functions as a shutter, has a security function, does not cause the louvers to flap due to wind, etc., and has increased strength of the louvers.

[Summary of the invention]

The blind according to the present invention supports a plurality of rows of horizontal louvers arranged at regular intervals vertically by vertically extendable support mechanisms provided on both sides of the rows of louvers, and further includes: In a blind in which these louvers are rotatable between a substantially horizontal position and a substantially vertical position about their respective horizontal axes, every other one of the plurality of louvers is provided with a separate support mechanism. These louvers are divided into two sets of louver groups by supporting them by a A moving means for vertically moving the louver up and down is provided, and a hook portion is formed on the edge of the louver in one group, and a hook portion is formed on the louver in the other group, which corresponds to the above hook portion when the louver is in a vertical position. A hook receiving opening is formed at the position, and when the two sets of louver groups are relatively moved up and down by the moving means, the louvers of one of the louver groups fit into each other within the hook receiving openings. It is characterized by being arranged so as to be locked.

[Embodiments of the invention]

The illustrated embodiment will be described below.

An embodiment of the blind of the present invention is shown in Figs.
As shown in the figure.

In FIG. 1, reference numeral 1 indicates a plurality of horizontal louvers arranged vertically at regular intervals, 2 indicates a headbox of a blind, 3 indicates an operating shaft mounted horizontally within the headbox, and 4 indicates a rotating drum. Figure 6,
As explained in connection with FIG. 7, the above row of louvers 1 is supported so as to be movable up and down by vertically extendable support link mechanisms 5 provided on both sides of the louver row, and each louver is arranged horizontally. It is adapted to be pivoted about an axis between a substantially horizontal position and a substantially vertical position.

In the present invention, the plurality of louvers 1 described above are
Every other louver 1 is supported by separate support linkages 5A and 5B operated by rotating drums 4A and 4B, respectively.
is divided into two louver groups 1A and 1B.

Each of these louvers is rotated between a substantially horizontal position shown in dashed lines in FIG.

Since the rotation and elevation mechanisms are the same as those of the conventional type described above, only the rotation angle regulating mechanism is shown in FIG. 3 without detailed description here. This is substantially the same as that shown in FIG. 8, except that it includes two rotating drums 4A and 4B.

After the above two sets of louver groups 1A and 1B have been rotated to approximately vertical positions around their respective horizontal axes, as shown in Fig. 2A, these two sets of louver groups are relatively moved up and down. A moving means is provided for moving. In the illustrated embodiment, this moving means consists of a pin 20 slidably fitted into a slit 19 provided in the rotating drum 4A and a protrusion 21 provided in the lifting chain 12 so that the rotating drum 4A rotates. Later, a protrusion 21 provided on the lifting chain pushes up the pin 20 from the position shown in FIG. 4 to the position shown in FIG. 5, thereby lifting the cord portion at the upper end of the support link mechanism 5A. As a result, one support link mechanism 5A is moved upward relative to the other support link mechanism 5B.

Therefore, a connecting portion is formed in the louvers 1A and 1B, which fixedly connects one louver 1A and the other louver 1B to each other when the above-described relative movement occurs. In the illustrated embodiment, this fixed joint is formed by a hook portion 22 and a hook receiving opening 23, and when the louvers are rotated to a substantially vertical position as shown in FIG.
2 and the hook receiving opening 23 are fitted into each other, and by the relative vertical movement of both louvers, both louvers are fixedly locked, whereby the louvers 1A and 1B constitute an integrated shutter-like structure. .

〔Effect of the invention〕

As described above, the present invention provides a blind that has both the function of a blind as lighting and ventilation, and the function of a shutter with complete blocking and security effects. This blind is particularly suitable for use as an outside blind, but it also provides a completely closed type blind that does not flap due to wind or the like, even for indoor use.

[Brief explanation of drawings]

FIG. 1 is a partial front view of the blind according to the present invention, FIGS. 2A and 2B are explanatory diagrams explaining the movement of the louver of the blind according to the present invention, FIG. 5 and 5 are side views showing one embodiment of the louver relative movement mechanism according to the present invention, FIG. 6 is a partial front view of a conventional blind, and FIG. 7 is a side view showing a louver support link mechanism. , FIG. 8 is a sectional view showing the louver rotating drum, FIG. 9 is a sectional view taken along the line --- in FIG. 8, and FIG. 10 is a sectional view taken along the -- line in FIG. DESCRIPTION OF SYMBOLS 1... Louver, 2... Head box, 3... Operating shaft, 4... Rotating drum, 5... Louver support link mechanism, 6... Pivot, 7... Vertical link, 8... Horizontal link, 9... Shaft, 10... Pivot, 11... Chain Car, 12... Lifting chain, 13... Motor, 14... Drive drum,
15...Clutch spring, 16...Slat rotation regulating member, 17...Engagement pin, 18...Slit, 19...Slit, 20...Pin, 21...Protrusion, 22...Hook portion,
23...Hook receiving port.

Claims (1)

[Claims] 1 A plurality of rows of horizontal louvers arranged at regular intervals vertically are supported in a vertically extendable support mechanism provided on both sides of the louver row, and each of these louvers is a plurality of louvers, each of which is supported by a separate support mechanism, in a brine that is rotatable between a substantially horizontal position and a substantially vertical position about a horizontal axis of the brine; By this, these louvers are divided into two sets of louver groups, and after each of the above louvers is rotated to a nearly vertical position around its respective horizontal axis, the above two sets of louver groups are relatively moved up and down. At the same time, a hook portion is formed on the edge of the louver in one louver group, and a hook receptacle is formed on the louver in the other louver group at a position corresponding to the hook portion when the louver is in the vertical position. form an entrance, and use the above-mentioned moving means to move the above 2
A blind characterized in that the louver groups of the set are arranged so that when the louver groups are moved vertically relative to each other, they fit and lock into each other within the hook receiving openings of the louvers of one of the louver groups.