JPH0542240Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a screen-type blind device for daylight windows.

[Background Art] In order to bring in light into a room from the ceiling, a blind device is formed by providing a lighting window A on a roof 11 and attaching a screen 4 in a blind frame 1 on a ceiling 12 so as to be openable and closable, as shown in FIG. There is a device that is equipped with a blind device B, and in this device, the harsh summer sunlight is blocked by the screen 4 of the blind device B.
It is designed so that it can be blocked.

In this blind device B, the screen is attached to a take-up roll provided within the blind frame, and the screen is taken up by the rotational biasing force of the take-up roll due to a spring provided in the take-up roll. To pull out the screen, pull the screen with a string or the like, tie the string to a string binding fitting, etc. to maintain the pulled out state, and when you want to wind up the screen, release the string. The screen was wound up by the rotational biasing force of the winding roll. As described above, in the past, procedures such as tying and untying the strings were required, which was time-consuming. Utsukai Showa 62-22293
As shown in the publication, an end bar is provided at the tip of the screen, and a stopper spring that engages with this end bar is provided, and by bending the stopper spring, the end bar is engaged with the stopper spring. There is also a device in which the end bar is pulled out further and released, and the return force generated by the spring force of the take-up roll is used to release the engagement. In this case, when the end bar is engaged with the stopper spring, the end bar must be pulled with enough force to deflect the stopper spring, and when the engagement is released, the screen must be When sufficient momentum is not obtained for return, there is a risk that the engagement will not come off and will be re-engaged.

[Purpose of the invention] The present invention has been devised in view of the above-mentioned conventional problems, and its purpose is to provide a blind device for a daylight window whose screen can be opened and closed with a single touch operation.

[Disclosure of the invention] The blind device for a daylight window according to the invention includes a blind frame, a winding roll attached along the inner edge of one frame member of the blind frame, and a winding roll wound around the winding roll. a screen that is biased in the winding direction around the take-up roll by the spring rotational force of the take-up roll; an end bar that is attached to the tip of the screen so as to extend in the width direction; and the frame material of the blind frame. A guide groove provided on the orthogonal frame members to hold the longitudinal end of the end bar in a freely movable manner, and a locking protrusion formed in the guide groove and provided on the end bar to be detachably attached. In a lighting window blind device consisting of a notch for a stopper that locks, the end bar that has a locking protrusion at the rear end on the winding roll side has a thickness that is approximately the same as the groove width of the guide groove. The rear end side, which is thinner than the front end side, is movable in a direction perpendicular to the surface of the screen, and the locking protrusion protrudes in the same direction as the stopper notch. It is characterized by having an operating piece on the rear side.

The present invention will be explained in detail below with reference to Examples. The blind frame 1 is formed into a rectangular frame shape by a pair of vertical frame members 2a, 2a and a pair of horizontal frame members 2b, 2b, and as shown in FIGS. A lower piece 6 extends inward over the entire length of the lower edge of the frame members 2a, 2b. Further, a guide piece 14 is provided protruding from the vertical middle part of the inner surface of the vertical frame member 2b as shown in FIG. 5, and a guide groove 15 is formed between this guide piece 14 and the lower piece 6. It is designed so that
Therefore, the vertical frame member 2 having this guide groove 15
b is a rail frame C along which the longitudinal end of the end bar 5 runs. And this rail frame C
The rising piece 6a at the tip of the lower piece 6 of the vertical frame member 2b is provided with stopper notches 24 at a plurality of locations in the longitudinal direction. As shown in FIG. 3, this stopper notch 24 is composed of an inclined part 24a and a stopper vertical part 24b, and the stopper vertical part 24b is located on the take-up roll 3 side. The take-up roll 3 is arranged along the inside of one horizontal frame member 2a, and as shown in FIG.
3 and 13 are attached by being non-rotatably inserted into and engaged with a bearing plate 25 provided on the vertical frame member 2b. The square shaft 13 is rotatable relative to the take-up roll 3, and one end of a spring (not shown) provided in the take-up roll 3 is coupled to the square shaft 13. Therefore, the take-up roll 3 is configured to be biased to rotate by a spring.

The screen 4 is formed of a sheet material or the like, and one end of the screen 4 is connected to the take-up roll 3, so that the screen 4 is wound around the take-up roll 3 by the rotational force of a spring. Further, an end bar 5 is attached to the other end of the screen 4 over the entire length of the screen 4 in the width direction. The end bar 5 has an operating piece 17 on the lower surface of the main body piece 16, and a fourth
As shown in FIG. 5, it is formed by attaching side caps 18, 18 to both ends of the body piece 16.
Guide pieces 19, 19 projecting laterally from the blind frame 1 are fitted into guide grooves 15, 15 of the blind frame 1. A cushioning material 7 such as rubber is attached to each side cap 18 so as to protrude from the end bar 5, as shown in FIG. Here, as shown in FIG. 3, the guide piece 19 has a rear part (winding roll 3 side) diagonally slanted downward, and a locking protrusion 1
It has become 9a.

The blind device B configured as described above is
It is installed below the lighting window, for example, in an opening 20 in the ceiling, and is fixed by driving screws 21 from the blind frame 1 into the peripheral wall of the opening 20, as shown in FIG. . At this time, the hanging jig 22 is installed on the blind frame 1 as shown in FIG.
3 to the peripheral wall of the opening 20, the blind frame 1 is suspended and temporarily held within the opening 20, and screws 21 can be driven in this state.

In this blind device B, when the screen 4 is wound around the winding roll 3 as shown in FIG. 4, the blind device B is in a fully open state.
From this state, the end bar 5 is pulled and moved along the guide groove 15, and the screen 4 is pulled out from the take-up roll 3 while rotating the take-up roll 3 against the spring force. can be closed. Here, since the end of the lower piece 6 of the vertical frame member 2b of the blind frame 1 has a stopper notch 24 recessed in the piece 6a, the end bar 5 is tilted to Like that side cap 1
By engaging the locking protrusion 19a of the guide piece 19 of 8 with the stopper notch 24, the screen 4 can be pulled out from the take-up roll 3 and the blind device B can be maintained in a closed state. It's like this. At this time, the guide piece 19 in the end bar 5 has a thickness that is approximately the same as the groove width of the guide groove 15 on the tip side, but the thickness becomes thinner toward the rear, and therefore On the other hand, the rear end side where the locking protrusion 19a is located is movable in the direction perpendicular to the surface of the screen 4, and at the same time,
The operating piece 17 protruding in the same direction as the locking protrusion 19a is located at the rear of the tip of the guide piece 19. When the screen 4 is pulled out, a moment acting on the tip of the guide piece 19 as a fulcrum causes the locking protrusion 19a to move into the stopper notch 2.
4 in the direction of engagement. For this reason, when the locking protrusion 19a reaches the stopper notch 24, the two automatically engage with each other. Next, push the end bar 5 to disengage the locking protrusion 19a from the stopper notch 24 as shown by the chain line in FIG. 3, and allow the winding roll 3 to wind up the screen 4. The screen 4 is wound around the take-up roll 3 by the rotational urging force of the spring, and the end bar 5 runs along a guide groove 15 provided in the rail frame C and is drawn toward the take-up roll 3.
The end bar 5 will eventually collide with the tip of the lower piece 6 of the frame material 2a covering the lower side of the take-up roll 3, but as shown in FIG. The material 7 collides directly with the lower piece 6, and the shock at the time of collision is absorbed by the buffer material 7, making it possible to prevent the generation of large impact noises.

[Effects of the invention] As described above, in the present invention, a stopper notch is provided in the rail frame portion on which the longitudinal end of the end bar at the tip of the screen moves in the blind frame, and a notch for the stopper is provided in the end bar. The provided locking protrusion is removably locked in the stopper cutout, so the locking protrusion can be locked in the stopper cutout by operating the end bar, or the locking protrusion can be attached to the stopper cutout. The screen can be kept closed or opened by simply removing it from the stopper notch, and the above-mentioned locking can be done by grasping the operating piece on the end bar and pulling out the screen. At this time, the locking notch is urged by the moment in the direction of engaging the stopper notch,
The two are automatically engaged in the engaged position, and can be reliably released by simply pressing the operating piece.The opening and closing operations are extremely simple, and there is no locking protrusion. The engagement and disengagement between the stopper notch and the stopper notch are always ensured.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a perspective view of the above locking protrusion being locked in the stopper notch, and Fig. 3 is a perspective view of the above locking protrusion being locked in the stopper notch. 4 is a partially cutaway overall front sectional view of the present invention, FIG. 5 is a partially cutaway overall side sectional view of the same device, and FIG. 6 is a partially cutaway side sectional view of the present invention. It is a schematic explanatory diagram in which a blind device is provided below, and 1 is a blind frame, 2a is a frame material, and 2b
1 is a frame material, 3 is a take-up roll, 4 is a screen, 5 is an end bar, 15 is a guide groove, 17 is an operating piece, 19
a is a locking protrusion, 24 is a stopper notch, C
is the rail frame.

Claims (1)

[Scope of utility model registration request] a blind frame; a take-up roll attached along the inner edge of one frame material of the blind frame;
a screen that is wound around a take-up roll and biased in the winding direction around the take-up roll by a spring rotational force on the take-up roll; an end bar that is attached to the tip of the screen so as to span in the width direction; A guide groove provided in a frame member perpendicular to the frame member of the blind frame to hold the longitudinal end of the end bar in a movable manner, and a lock formed in the guide groove and provided on the end bar. This is a blind device for a daylight window, which is composed of a stopper notch and a stopper notch that is removably engaged with a stopper. The rear end side, which is thinner than the front end side, which has a thickness almost the same as the groove width of the screen, is movable in a direction perpendicular to the surface of the screen, and the locking protrusion engages with the stopper notch. A daylight window blind device equipped with an operating piece on the rear side that protrudes in the same direction as the mating direction.