JPS6228855Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a skylight opening/closing device for ventilating an assembled greenhouse, which allows the skylight to be opened and closed very simply, easily, smoothly and lightly, and also improves the ventilation effect. To provide a stable skylight which is not easily damaged even when exposed to wind pressure or impact, and which is not closed by wind pressure by forming a detent device for the canopy at the same time as the window is opened.

An embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 is a perspective view showing the entire structure of an assembled greenhouse equipped with this device, and Fig. 2 and subsequent figures show the structure of the main parts of this device. A glass plate or a synthetic resin plate is fitted into a hollow space to form a surrounding wall and a roof.
In order to install a skylight 3 by opening a section of the ridge of the roof frame material 2a of this greenhouse, a window frame 4 is fitted into the opening, a canopy 5 is attached onto the window frame, and the process is repeated. It is movably pivoted to the rear side of the window frame, and the rear ends of both side bars 4b, 4b are extended rearward from the rear bar 4a of the window frame 4, and projecting pieces 4c are provided on both left and right sides of the rear bar. At the same time, a bent support piece 4d is provided which rotates downward from the rear side of the central part of the rear rod 4a and projects forward into the inside of the window frame, and is fixed to the rear surface of the rear rod.

In addition, the canopy 5 has a central part of the canopy frame 5a into which a synthetic resin board is inserted, and a central part 5b is attached to both the front and rear frame rods 5c, 5.
A pair of horseshoe-shaped curved rotating arms 5f, 5f are installed at the rear end portions of both side rods 5e, 5e.
is installed vertically into the window frame, and the arc-shaped base a of the arm 5f is attached to the window frame side bars 4b, 4b inside the window frame rear bar 4a.
The intermediate curved part mouth passes through the lower part of the window frame rear bar 4a, the rear end part C projects outward to the rear of the window frame rear bar 4a, and the rear end is routed to the protruding piece 4c of the window frame side bar extension part. It is pivoted for free movement.

In addition, 6 is a bending/extending operation rod having a joint part, and this operation rod 6 has an upper rod 6b and a lower rod 6c.
are pivotally connected by a pin 6a to form a rotatable joint, and the upper and lower rods can be freely bent and extended by the joint, and the intermediate portion of the lower rod 6c is connected to the bending support piece 4d by a pin 6b. A lever 6e is pivotally connected to the inner end portion and extends in an inverted L shape from the pivot portion 6d of the lower rod 6c.
Both ends of a chain 7 are tied to the upper bent corner and the lower end, and both ends of the chain are pulled down alternately to rotate the lower lever via a lever, and the upper lever is interlocked to rotate the operating lever. The canopy 5 is configured to be rotated to open and close by bending and stretching.

A restraining piece 6f is provided on the front edge of the upper rod joint of the bending/extending operating rod, and this restricting piece controls the backward movement of the joint and prevents the operating rod from bending in the opposite direction. When the rod is extended, the joint portion moves slightly backward from the straight line state of both rods, and is stopped by the stopper piece in a dogleg-shaped state.

Since the present invention is configured as described above, it has the following effects.

A pair of curved rotating arms 5f, which are hung from the rear ends of both sides of the canopy 5 into the inside of the window frame 4, have their arcuate bases 5f, 5f along the insides of both side rods 4b, 4b of the window frame 4, and move the rear part backward. It protrudes and its rear end C is rotatably pivoted to the protruding piece 4c on the rear outside of the window frame, so that the bending/extension operating rod 6
When the canopy 5 is pushed up by the above operation, the canopy 5 rotates upwards of the window frame using the pivot point at the rear end of the rotating arm as the rotation axis and opens, and the rear frame rod 5c of the canopy 5 moves away from the window frame rear rod 4a. As a result of opening a wind escape opening between the rear part of the canopy and the rear part of the window frame, the wind pressure applied to the canopy is alleviated, so the canopy is less likely to be damaged by strong winds, making it safer. Since the air passes through the greenhouse, the ventilation effect inside the greenhouse is enhanced and the ventilation is good.

Furthermore, a bending/extension operating rod 6 having a joint portion 6a is provided at the center between the canopy 5 and the window frame 4, the upper rod of the operating rod is pivotally connected to the canopy, the lower rod is pivotally connected to the window frame, and the lower rod is pivoted to the window frame. Since both ends of the chain 7 are tied to the upper bent corner and the lower end of the reverse L-shaped lever of the lever, by alternately pulling both ends of the chain, the operating lever is bent and stretched, and by the principle of the lever, it is The canopy can be opened and closed easily.

Furthermore, when the bending/extending operation rod is fully extended, a stopper piece 6f is provided on the upper rod for controlling the bending in the opposite direction so that both the upper and lower rods will stop when they are slightly past the dead center from the straight line at the joint. Therefore, both the upper and lower rods stand still in a dogleg shape in slightly opposite directions, and when the load of the canopy is applied to them, the joints are fixed and do not bend in the original direction, forming a detent device. Even if the canopy is subjected to wind pressure or impact, the canopy will not descend, making the canopy stable and safe.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the entire assembled greenhouse equipped with this device, Fig. 2 is a perspective view showing an embodiment of the present skylight opening/closing device, and Fig. 3 shows the state of the device when the canopy is opened. 4 is a front view thereof, FIG. 5 is a side view showing the state of the device when the canopy is closed, and FIG. 6 is a front view thereof. 1... Assembly greenhouse, 2... Frame, 3... Skylight,
4... Window frame, 4a... Window frame rear bar, 4b... Window frame side bar, 4c... Window frame projecting piece, 4d... Bent support piece, 5...
...Canopy, 5a...Canopy frame, 5b...Nakasagi, 5c...
...Front and rear frame rods, 5d...tongue piece, 5e...canopy side rod,
5f...Rotating arm, 6...Operation rod, 6a...Pin,
6b... Upper rod, 6c... Lower rod, 6d... Pivot part, 6e... Lever, 6f... Stopping piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a skylight in which a canopy is rotatably attached to a window frame provided in an opening in the roof, a pair of curved rotating arms 5f are provided opposite to each other at the rear of both sides of the canopy 5. The curved rear part of the rotary arm protrudes from the lower inner side of the window frame rear rod 4a to the rear and outer side, and the rear end is pivoted on the extension of the window frame side rod 4b, and the joint part 6a is attached at the center of the window frame.
An opening/closing device for a skylight, in which an upper rod 6b of a bending/extending operation rod 6 having a bending/extending operation rod 6 is pivotally attached to the center part of the canopy, and a lower rod 6c is pivotally attached to the rear part of the window frame. (2) A rotation stopper 6 is provided on one side edge of the joint of the bending/extending operation rod 6.
A skylight opening/closing device according to claim 1 of the utility model registration claim, which is provided with f. (3) A lever 6e is provided on the lower lever 6c of the bending/extending operation lever,
A skylight opening/closing device according to claim 1 or 2, wherein a traction means is provided at both ends of the lever.