JPH0313771Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is characterized in that an arm formed integrally with the worm wheel is rotated by the rotation of a worm that meshes with a worm wheel that is pivotally supported within the case body. The present invention relates to a louver window opening/closing device configured to be opened and closed by rotation of the arm.

[Conventional technology]

Conventionally, the fourth type of opening/closing device for louver windows has been used.
The ones shown in Figures 6 to 6 are used.

In this opening/closing device, a worm wheel 2 is rotatably supported in a case body 1 attached to a window frame, etc., and a worm 3 that engages with the worm wheel 2 is tilted and integrated into a side part 1a of the case body 1. The worm 3 is rotatably housed in a cylindrical portion 4 protruding from the worm 3, and a handle 5 having a handle 5a is fitted to one end shaft 3a of the worm 3, and an arm 2a formed integrally with the worm foil 2 is attached to each The louver 6 is pivotally connected to a connecting rod 7 via a lever 8, and when the handle 5 is rotated, the worm wheel 2 rotates, and the arm 2a formed integrally with the worm wheel 2 rotates. Rotates as the worm wheel 2 rotates,
By vertically moving a connecting rod 7 connected to the arm 2a via a lever 8, the louvers 6 pivotally attached to the connecting rod 7 are opened and closed all at once.

[Problem that the invention attempts to solve]

The above-mentioned louver windows are used for indoor ventilation and lighting, and with the recent changes in living room configurations, they are also being used for aesthetic reasons.

However, this opening/closing device is usually installed at a height of about 1 m from the floor surface in consideration of operability when opening and closing, but it has the drawback that the handle in particular protrudes significantly toward the interior.

This drawback can become an obstacle when passing by a window equipped with an opening/closing device, and in the case of young children, it can hit the head of the vehicle, leading to unexpected accidents.

The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a louver window opening/closing device equipped with a handle that is automatically held in a tilted state when not in use.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention adopts the following technical means, that is, the configuration.

A worm wheel 2 integrally equipped with an arm 2a is rotatably supported within the case body 1.
The worm foil 2 has a side portion 1 of the case body 1.
A worm 3 disposed in a cylindrical part 4 integrally provided with an inclined protrusion is meshed with the worm 3, and the rotation of the worm 3 rotates the worm wheel 2, and The louver window is configured such that the rotation of the arm 2a moves the connecting rod 7 connected to the arm 2a in the vertical direction, and each louver 6 pivotally attached to the connecting rod 7 is rotated to open and close the window. The opening/closing device is such that the worm 3 is integrally formed with a shaft portion 3a at one end thereof, and the shaft portion 3a is made to protrude from the cylindrical portion 4. The shaft portion 3a of the worm 3 has a columnar portion 9a and a rectangular parallelepiped portion 9b integrally formed continuously with the outer periphery of the columnar portion 9a. Open groove 1 with a rectangular cross section
The handle holder 9 having a diameter of 3 is fixed in the cylindrical portion 9a. A shaft 14 is disposed in the groove 13 of the handle holder 9 and has both ends fixed to the groove side wall 13a. The shaft 14
has a cylindrical surface portion 15a at one end, a bent portion 15b at the other end, and extends obliquely downward, and a handle 15 at the end.
The handle 15 having the shape c is arranged so as to be rotatable around the shaft 14 with the cylindrical surface portion 15a facing the bottom portion 13b of the groove 13. The handle 15
A coil spring 16 is wound around the outer circumferential surface of the shaft 14 and is disposed with one end engaging the handle holder 9 side and the other end engaging the handle 15 side, and a spring force is applied in the direction of tilting. The handle shall be held in a tilted position at all times.

This is a louver window opening/closing device characterized by having the above configuration.

[Operation] A spring force is applied to the handle 15 in the direction of tilting by a coil spring 16 which is wound around the outer peripheral surface of the shaft 14 and is disposed with one end engaging the handle holder 9 side and the other end engaging the handle 15 side. The handle is always held in a tilted state by being biased (torsion spring force). When using the handle, the handle, which is always held in a tilted state by the biasing force of the spring, is raised against the biasing force, and then the handle is rotated to perform smooth opening and closing operations.

After opening and closing, simply by releasing your hand from the handle, the handle is automatically held in the tilted state by the biasing force of the coil spring.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to FIGS. 1 to 3 of the accompanying drawings showing embodiments thereof.

Note that the same parts as those in the prior art described above will be described with the same reference numerals.

The worm 3 is rotatably housed in a cylindrical part 4 that projects integrally with the side part 1a of the case body 1 at an angle, and a shaft part 3a is integrally formed at one end of the worm 3. 3a is made to protrude to the outside of the cylindrical portion 4.

A worm wheel 2 is meshed with the worm 3 and integrally includes an arm 2a pivotally connected to a connecting rod 7 to which each louver 6 is pivotally connected via a lever 8.
The worm wheel 2 is rotatably supported within the case body 1.

The shaft portion 3a of the worm 3 protruding from the cylindrical state 4
A handle holder 9 is connected and fixed to the handle holder 9.

The handle holder 9 has a cylindrical portion 9a having the same diameter as the outer diameter of the cylindrical portion 4, and a rectangular parallelepiped portion 9b integrally formed continuous with the outer periphery of the cylindrical portion 9a. The shaft portion 3a and the handle holder 9 are connected and fixed by fitting the shaft portion 3a into a hole 10 formed in the cylindrical portion 9a of the holder 9,
This is done by a set screw 12 screwed into a screw hole 11 communicating with the hole 10.

The cuboid part 9b of the handle holder 9 has a lower surface 9 at the end opposite to the cylindrical part 4.
A groove 13 having a rectangular cross-section and opening across b1 and the end surface 9b2 is formed, and a shaft 14 whose both ends are fixed to the side wall portion 13a of the groove is disposed in the groove 13.

The shaft 14 has a cylindrical surface portion 15a at one end, a bent portion 15b at the other end, and a handle 15 that extends obliquely downward and has a handle 15c at the end. 13b towards the axis 1
It is arranged so that it can rotate around 4.

The handle 15 has a groove wound around the outer peripheral surface of the shaft 14, one end of which engages with a notch 13c formed in the bottom 13b of the groove 13, and the other end formed on the handle 15. The coil spring 16 engaged with the recess 15d always applies a spring force (torsion spring force) in the direction of tilting the handle holder 9 (in the direction of the arrow in FIG. 1), and the handle 15
is kept in a tilted position at all times.

When opening and closing the louver 6 using the opening/closing device equipped with the handle 15 configured as described above, the handle 15, which is always held in a tilted state by the biasing force of the coil spring 16, is raised against the biasing force. Then, by rotating the handle 15, the handle holder 9 is rotated.

As the holder 9 rotates, the worm 3 connected and fixed to the holder 9 rotates, and the worm 3
The worm wheel 2 meshed with the worm wheel 2 rotates.

Due to the rotation of the worm wheel 2, the worm wheel 2
The arm 2a formed integrally with the arm 2a also rotates, and the connecting rod 7, which is connected to the arm 2a via the lever 8, is moved in the vertical direction.

As the connecting rod 7 moves, each louver 6 pivotally attached to the connecting rod 7 opens and closes.

After opening and closing the louver 6, the handle 1
5, the handle 15 rotates around the shaft 14 by the biasing force of the coil spring 16, automatically tilts, and is held in the tilted state.

[Effect of idea]

Since the handle is held in a tilted state by the biasing force of the coil spring when not in use, the length of the handle protruding toward the indoor side is small, which not only eliminates contact problems when passing by the window where the opening/closing device is installed. , unexpected accidents are prevented.

When using the handle, the handle can be raised against the biasing force of the coil spring, and then rotated to perform smooth opening and closing operations. Since it is automatically held in a tilted position, the above-mentioned troubles, accidents, etc. are always prevented.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the louver window opening/closing device of the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, Fig. 3 is a sectional view taken along the line of Fig. 1, and Fig. 4 is a sectional view of the conventional louver window. FIG. 5 is a side view showing the case body, and FIG. 6 is a sectional view showing the louver window opening/closing device. Explanation of symbols, 1...Case body, 2...Worm foil, 2a...Arm, 3...Worm, 9
...Handle holder, 13...Concave groove, 14...
Shaft, 15...handle, 16...coil spring.

Claims (1)

[Claims for Utility Model Registration] Inside the case body 1, a worm wheel 2 integrally equipped with an arm 2a is rotatably supported.
The worm foil 2 has a side portion 1 of the case body 1.
A worm 3 disposed in a cylindrical part 4 that is integrally provided with an inclined protrusion is meshed with the worm 3, and as the worm 3 rotates, the worm foil 2 rotates and is integrated with the worm foil 2. A looper window configured to open and close the window by vertically moving a connecting rod 7 connected to the arm 2a by rotating the arm 2a, and rotating each louver 6 pivotally attached to the connecting rod 7. In the opening/closing device, the worm 3 is integrally formed with a shaft portion 3a at one end thereof, and the shaft portion 3a is made to protrude from the cylindrical portion 4. The shaft portion 3a of the worm 3 has a cylindrical portion 9a and a rectangular parallelepiped portion 9b integrally formed continuous with the outer periphery of the cylindrical portion 9a.
A handle holder 9 having a concave groove 13 with a rectangular cross section that opens across its lower surface 9b1 and end surface 9b2 is fixed to the columnar portion 9a. A shaft 14 is disposed in the groove 13 of the handle holder 9 and has both ends fixed to the groove side wall 13a. The shaft 14 has a cylindrical surface portion 15a at one end,
A handle 15 whose other end extends diagonally downward with a bent portion 15b and has a handle 15c at the end is rotatably arranged around the shaft 14 with the cylindrical surface portion 15a facing the bottom portion 13b of the groove 13. That's what I'm doing. The handle 15 is provided with a spring force in the direction of tilting by a coil spring 16 which is wound around the outer peripheral surface of the shaft 14 and has one end engaged with the handle holder 9 and the other end engaged with the handle 15. The handle is energized and the handle is kept tilted at all times. A louver window opening/closing device characterized by having the above configuration.