JPS5838160Y2 - Blind-type storm door slat angle changing device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a slat angle changing device for a blind type storm door, in which the shaft portions at both ends of each slat plate are connected to each other by a flexible strip via a rotating lever, and To provide a slat angle changing device for a blind type storm door, whose upper end is connected to an angle changing wheel, and by rotation of the wheel, each slat plate is simultaneously rotated by an appropriate angle and held at that position. .

To explain the embodiment of the present invention with reference to the drawings, 1 is a door pocket fixed to the upper part of an opening of a window, etc., and an opening 2 is provided on the lower surface thereof extending over the gold mine through which a curtain, which will be described later, can pass. .

3.3 is a pair of left and right guide rails that are connected to the bottom of both sides of the door pocket 2, and a plurality of horizontally long slat plates 5 are installed between them.
. . 5 connected in parallel, the curtain 4 is arranged to be vertically movable.

Reference numeral 6 designates horizontal shaft portions integrally projecting from both ends of the slat plate 5, and the shaft portions 6 are inserted into guide grooves of the guide rail 3 to move the curtain 4 up and down.

Reference numeral 7 denotes a turning lever whose center part is integrally pivoted to the tip of the shaft part 6 of each slat, and its both ends are connected to vertically adjacent levers by flexible strips 8 such as strips or strings. The slats 5 are connected to each other, and their upper ends are led upward and connected to symmetrical positions on the outer periphery of a dish-shaped angle changing wheel 9 provided in the upper door pocket 1 to maintain the slats 5 at the same spacing. It is.

Reference numeral 10 denotes a horizontal shaft for raising and lowering the curtain rotatably supported on the bottom surface of the top plate of the door pocket 1, and cheno wheels 1 are attached to both ends of the shaft.
1 and the chain wheel 11 and the guide rail 3.
A cheno wheel 13 is hung endlessly between a chino wheel 12 rotatably supported at the lower end, and a part of the chino 13 is attached to the shaft part 6 of the slat plate 5 at the bottom of the curtain 4 using a lever 14. It is connected via.

As shown in FIG. 4, the angle changing wheel 9 is rotatably supported via a bearing bush 16 on a fixed shaft 15 fixed to the side wall of the door pocket 1, and its axis is aligned with the shaft of the curtain lifting shirt 10. It is arranged eccentrically by an appropriate dimension from the core.

As shown in FIGS. 5 and 6, 17a and 17b are two pawls 20 rotatably pivoted at appropriate intervals on the periphery of the angle changing wheel 9, respectively. The base end is inscribed in the inner surface of the circumferential wall 9a of the angle changing wheel 9 so as to be able to come into contact with the inner surface of the peripheral wall 9a to prevent more than necessary inward rotation, and the distal end thereof is arranged inward. , a spring 18 is pressed against the back surface of the claw body 17 in the normal state.
a and 17b are directed inward.

Reference numeral 19 denotes a ratchet wheel whose center part is fixed integrally with the Cheno wheel 11 to the tip of the shaft 10 for raising and lowering the curtain, and which is provided close to the angle changing wheel 9, and its ratchet teeth 19a are arranged in the same direction as described above. Claw body 17a,
17b so that it can be engaged and disengaged.

The manner of use of the embodiment configured as described above is explained by manual operation as appropriate, for example, by pulling the string 9I22, which is a pulley 21 fixed to one end of the shaft 10, which is hooked around the pulley 21. By doing this, when the curtain lifting shaft 10 is rotated in a predetermined direction, the cheno wheel 11.12 is rotated and the chino wheel 13 is rotated, and the lowest slat 5 connected to the chino wheel 11 is pushed up. Each slat 5 is sequentially folded up and stored in the door pocket 1.

If the curtain raising/lowering shirt 10 is rotated in the opposite direction, the curtain 4 is pulled down by the chino 13.

Now, when the curtain lifting shaft 10 is rotated clockwise in FIG. 5 with the curtain 4 pulled down, the coaxial ratchet wheel 19 rotates clockwise and the claw body 17a is attached to the ratchet tooth 19a with a spring. 18, the angle changing wheel 9 also rotates in the same direction, and one of the flexible strips 8 tightly attached to the wheel 9 is pulled up to the state shown in FIG. The slat 5 rotates in one direction.

Even if the elevating shaft 10 is further rotated clockwise from this position, the axis of the angle change wheel 9 will remain on the elevating shaft 1.
Since it is eccentric with respect to the zero axis, the pawl body 17a comes off from the ratchet tooth 19a and the angle changing wheel 9 does not rotate.

Furthermore, when the lifting shaft 10 is rotated in the opposite direction, the angle changing wheel 9 is similarly rotated in the opposite direction via the other pawl 17b, and the flexible strip 8 and the rotating lever 7 are rotated. The slats 5 are rotated in opposite directions through the slats 5.

In this way, each slat 5 is rotated in an appropriate direction to open and close the slat 5, and is held in that position.

As mentioned above, in the present invention, shaft parts are integrally provided at both ends of the plurality of slat plates forming the blind structure, and the curtain is opened and closed by moving the shaft parts up and down along the guide rail. In the blind type storm door, a rotating lever is integrally fixed to the shaft portion of each slat plate, and both ends of these rotating levers are interconnected by an appropriate flexible strip, and the flexible strip is The two ends of ``-'' are connected to an angle changing wheel, and the angle changing wheel is provided with two inwardly facing claws rotatably resiliently, and at an eccentric position with respect to the angle changing wheel. A ratchet wheel is pivotally attached to the shaft for raising and lowering the curtain, and rotation of the ratchet wheel engages and disengages the pawl body from the ratchet wheel to rotate the angle changing wheel, and each Since this is related to a slat angle changing device for a blind-type storm door configured to simultaneously rotate the slat plates at an appropriate angle, the curtains are opened and closed by operating the curtain lifting shaft I-. By rotating the ratchet wheel using rotation, and rotating the angle change wheel at an appropriate angle via the claw body, the rotation lever is rotated via the flexible strip, and each slat can be rotated at the same angle at the same time. It can be moved to adjust ventilation and lighting as desired, and since the ratchet wheel and angle change wheel are eccentric to each other,
When the angle changing wheel rotates by a certain angle, the pawl body automatically disengages from the ratchet wheel, the rotation of the angle changing wheel is stopped, and the slat can be held at a constant angle.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a simplified front view, FIG. 2 is a simplified side view of a part of the angle adjustment lever of the slat plate, and FIG. 3 is a simplified side view of the curtain lifting section. FIG. 4 is a sectional view of the slat angle changing mechanism, FIGS. 5 and 6 are explanatory views showing the operating state of the angle changing mechanism, and FIG. 7 is a front view thereof. 1... Door pocket, 3, 3... Guide rail, 4... Curtain, 5... Slat,
6...Shaft part, 7...Rotation lever, 8
......Flexible strip body, 9...Angle changing wheel, 10...Curtain lifting shaft, 17.
- Bent claw body, 19...Ratchet wheel.

Claims (1)

[Scope of utility model registration request] In a blind-type storm door, in which a shaft is integrally provided at both ends of a plurality of slats forming a blind structure, and the shaft is moved up and down along a guide rail to open and close the curtain, each slat A rotating lever is integrally fixed to the shaft portion of the lever, and both ends of the rotating lever are interconnected by an appropriate flexible strip, and the upper end of the flexible strip is set at an angle that allows rotation. Connected to change wheel,
The angle changing wheel is rotatably provided with two inward claws, and a ratchet wheel is pivotally attached to the curtain lifting shaft at a position eccentric to the angle changing wheel. The rotation of the ratchet wheel engages and disengages the pawl body from the ratchet wheel to rotate the angle change wheel, and simultaneously rotates each slat plate to an appropriate angle via the flexible strip and the rotation lever. A slat angle changing device for a blind-type storm door.