JPS638198Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a skylight opening/closing device for ventilating an assembled greenhouse, and it makes the opening/closing operation extremely simple, smooth, and light, and also improves the ventilation effect. Resistant to damage due to wind pressure, etc.
A detent means for the canopy is constructed at the same time as the window is opened, and the purpose is to provide a stable skylight that will not close due to wind pressure.

An embodiment of the present invention will be described with reference to the drawings.
Fig. 1 is a perspective view showing the entire assembled greenhouse equipped with this device, and Fig. 2 and subsequent figures show the structure of the main parts of the device. This is an assembled greenhouse in which a peripheral wall and a roof are constructed by inserting plates or synthetic resin plates, and one section of the ridge of the roof frame 2a of this greenhouse is opened and a window is inserted into the opening in order to install a skylight 3. A frame 4 is fitted, a canopy frame 5a is fitted to the upper side of the window frame, and a synthetic resin plate or the like is fitted to the canopy frame to form a canopy 5 that covers the window opening. A sliding plate 5d has a hollow 5c mounted in the center between 5b and a slot 5e formed on the center line at the lower part of both ends of the hollow 5c.
and a pair of tongue pieces 5f are hung inside thereof,
Both sliding plates are inserted and attached within the window frame.

In addition, a pair of support pieces 4c, 4c are vertically disposed opposite to each other at the center portions of the inner sides of the end rods 4b, 4b of the window frame 4, and a support protrusion 4d of the sliding plate is inserted into the intermediate portion of the support pieces 4c. A rotary shaft 6 parallel to the canopy is rotatably installed between the lower ends of the canopy frame, and projections 4d are provided in holes in a sliding plate 5d that extends from the central part of the canopy at both ends of the canopy frame. Both ends of the rotary shaft 6 are loosely inserted into the lower part of the rotary shaft 6, so that both sliding plates slide in the vertical direction using the protrusion and the rotary shaft as guides.

In addition, on the inner side of the sliding plate into which both ends of the rotating shaft are loosely inserted, the upper ends of each upper rod 7b of the pair of bending/extending operation rods 7 whose joint portions 7a are configured with a pin structure are connected to the tongue piece 5f of the canopy middle rod. The lower part of each lower lever 7c is inserted and fixed to the end of the rotating shaft, so that the canopy and the rotating shaft are connected through the operating lever. A stopper piece 7f is provided on one side of the operating rod near the upper rod joint to prevent the operating rod from bending in the opposite direction.

Furthermore, the lower rod 7c of the bending/extending operation rod on one side (the left side in FIG. 2) is extended downward from the part fixed to the rotating shaft to form a hanging piece 7d, and the lower part 7c is extended from the fixed part to the side. A projecting piece 7e is extended in the direction, and both pieces 7
Tie both ends of chain 8 to each tip of d and 7e,
By alternately pulling down both ends of the chain and rotating the rotating shaft to bend and extend both operating rods, the canopy is interlocked and moved up and down to open and close.

When the canopy moves up and down, the sliding plates at both ends slide against the protrusion 4d in the hole, the rotating shaft 6, and the support piece 4c, and are supported by these and slide up and down through the hole.

The present invention has the above-mentioned configuration, and since the lower lever of the double bending/extending operation lever is fixed to both ends of the rotating shaft, the chain 8
When one bending/extending operation lever is bent and extended by pulling down, the other bending/extension operating lever is also linked by the rotating shaft 6 and performs the same bending/extending operation, causing equal vertical movement at both ends of the canopy. The canopy slides on both ends of the window frame through the holes, supporting both ends of the canopy equally and always maintaining a horizontal state, making the vertical movement of the canopy smooth and light. The sliding plate is supported at the lower part of the hole by the rotary shaft 6, and supported at the upper part by the protrusion 4d, and is maintained vertically by two-point support to prevent the canopy from tilting. The canopy can be moved up and down while maintaining its horizontal position.

In addition, since the window is opened and closed by moving the canopy up and down while keeping it in a horizontal position, it is possible to form wide vents of equal height on all sides between the canopy and the window frame, resulting in excellent ventilation. In addition, when the window is opened, the flow of wind freely passes under the canopy in any direction, so the canopy is less exposed to wind pressure, making it possible to construct a skylight that is strong against wind pressure and difficult to break. Furthermore, the flow of air passing under the canopy causes a mist to flow inside the greenhouse, which is advantageous.

In addition, when the bending/extending operation rod is fully extended, a stopper piece 7f for preventing bending in the opposite direction is provided on the upper rod so that both the upper and lower rods stop at the point when they slightly pass the dead center from the straight line state at the joint. Both rods stand still in a dogleg shape bent slightly in opposite directions, so they do not bend in the original direction due to the load of the canopy, and form a detent means, allowing the canopy to descend even when subjected to wind pressure. Stable without any problems.

It should be noted that this device can be easily opened and closed by simply pulling the chain 8 through the bending/extending operation lever, so its operation is extremely simple.

[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 the main structure of this device, and Fig. 3 is an explanatory diagram showing the state of this device when opened from the side. , FIG. 4 is a partial explanatory diagram showing the front state from the front, FIG. 5 is an explanatory diagram showing the closed state of the device from the side, and FIG. 6 is a partial explanatory diagram showing the front state from the front. It is. 1... Assembled greenhouse, 2... Frame, 2a... Roof frame material, 3... Skylight, 4... Window frame, 4b... End rod, 4c... Support piece, 4d... Projection, 5... Canopy ,
5a...Canopy frame, 5b...End rod, 5c...Nakasagi,
5d...sliding plate, 5e...slit hole, 5f...tongue piece,
6...Rotation axis, 7...Bending/extending operation rod, 7a...Joint part, 7b...Upper rod, 7c...Lower rod, 7d...
Hanging piece, 7e... Projecting piece, 7f... Stopping piece, 8...
chain.

Claims (1)

[Scope of utility model registration request] A sliding plate 5d having a striped hole 5e is attached to the central part of both ends of the canopy 5 which is removably disposed on the window frame 4,
The support protrusion 4d of the sliding plate is provided inwardly protruding from the end of the window frame and loosely inserted into the hole, and both ends of the rotating shaft 6 installed above the center between both ends of the window frame are inserted into the hole of the sliding plate. Loosely insert the lower part of the protrusion into the joint part 7a on the inner side of the sliding plate.
The upper lever 7b of the operating lever 7 having a
A skylight opening/closing device in which a lower rod 7c is inserted and fixed to a rotating shaft.