JPH0230858Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a cover opening/closing mechanism, and more particularly to an opening/closing mechanism for a cover covering a ventilation hole of an outdoor casing.

(Prior art) In order to keep the internal temperature of the outdoor case constant against the seasonal changes in outdoor air temperature, an outdoor case in which electronic equipment is mounted is equipped with a ventilation fan and a heater inside the case. The temperature inside the case is adjusted to a constant temperature by opening the ventilation holes in the case and using a ventilation fan, and in cold weather by closing the ventilation holes in the case and turning on the heater, which is activated by a temperature sensor. However, the ventilation holes in the housing must be opened and closed,
Measures such as installing a cover over the ventilation hole and opening and closing the cover by hand are taken.

Conventionally, in outdoor enclosures, ventilation holes are often provided in the ceiling of the enclosure, and the opening/closing mechanism of the cover that covers the ventilation holes is, for example, attached to the inner surface of the cover with a hinge that can be opened and closed at one end. Raise and lower the rod on which the part is movably attached by hand to raise and lower the other end of the cover using the hinge as a fulcrum for opening and closing.
A mechanism that holds the rod holds the cover in either open or closed position to open or close the cover. Such a cover opening/closing mechanism moves a rod up and down and transmits the movement to the cover, and requires a space in the vertical direction of the casing to move the rod up and down, and a handle on the rod of the cover opening/closing mechanism. The mechanical part that moves the parts up and down by hand occupies a large proportion of the space above the housing.

As described above, if the conventional cover opening/closing mechanism occupies a large space, this becomes a drawback in that it reduces the internal mounting space of the casing. Furthermore, since the size of the casing is usually aimed at being small, it is desirable that the operating space in the cover opening/closing mechanism be as small as possible.

(Objective of the invention) An object of the invention is to provide a cover opening/closing mechanism that eliminates the drawbacks of conventional cover opening/closing mechanisms and reduces the space occupied by the handle.

(Structure of the invention) According to the invention, there is provided a housing, a lever with one end rotatably attached to the housing, a roller rotatably attached to a part of the lever, and a roller with one end rotatably attached to the housing. A cover attached so that it can be opened and closed, and a cover fixed to the cover,
an opening/closing guide plate in which the roller is inserted and engaged in a diagonal elongated hole; a guide plate that is attached to the housing and is provided with a stopper part that fixes the lever; and a lever guide hole in which the lever is inserted and engaged. A cover opening/closing mechanism is obtained.

(Example) Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows an outdoor casing using an embodiment of the present invention. In Figure 1, the outdoor casings are casing 1,
It is composed of a front door 2, a rear door 3, a roof 9, and a base 10, and the front door 2 and the rear door 3 are attached to the housing 1 with hinges 4 so as to be openable and closable. The intake hole 5 with an air filter is located at the bottom of the front door 2.
is provided. This intake hole 5 is open during hot weather and closed during cold weather. The front door 2 is fixed by a lock 8. A roof 9 is attached to the housing 1 and covers the upper part of the housing 1 for rainproofing and ventilation. Base 10 is housing 1
is fixed.

2 and 3 show a cover opening/closing mechanism which is an embodiment of the present invention. 2 and 3, in this embodiment, packing 6 for rainproofing is adhered around the inner surfaces of the front door 2 and the rear door 3. The guide frame 7 is a frame into which the packing 6 is fitted, and is integrally fixed to the inner surfaces of the front door 2 and the rear door 3. The cover 11 covers the ceiling of the housing 1, and has one hinge 12 attached to one end. The other hinge 13 is fixed to one end of the ceiling of the housing 1, and the shaft 14 passes through holes provided in the hinges 12 and 13, so that the hinges are rotatably connected to each other. The shaft 14 is prevented from coming off by a split pin 15. The cover 11 is adapted to come into close contact with a rubber packing 16 adhered around the ceiling of the housing 1 when it is closed. The guide frame 17 is a frame into which the rubber packing 16 is fitted, and is integrally fixed to the casing around the ceiling of the casing 1.

One end of the lever 18 is rotatably fitted onto a shaft 19 fixed to a part of the inner surface of the housing, and the other end is inserted into and engaged with a lever guide hole 28, which will be described later. The roller 20 is rotatably attached to a shaft 22 passing through a hole provided in a bracket 21 attached to a part of the lever 18. The shaft 22 is provided with a flange at one end, and is prevented from coming off at the other end by a split pin 23.

The opening/closing guide plate 24 is a plate fixed to the inner surface of the cover 11, and as shown in FIG. 5, has a diagonal elongated hole 25 in a part thereof, and the roller 20 is inserted into and engaged with the oblique elongated hole 25. There is. Lever guide plate 26
is a guide plate attached to the inner surface of the housing 1, and is provided with a slit-shaped lever guide hole 28 with recesses at both ends to serve as a stopper. Lever guide hole 28
A lever handle portion 29 at the end of the lever 18 is inserted into and engaged with the lever handle portion 29 . A bent portion 30 is provided at one end of the lever guide plate 26.

The display board 31 displays the opening/closing position of the cover 11 and the opening/closing position of the lever mounting portion 29, as shown in FIG. The hole 33 is provided in the ceiling of the casing 1, and is an escape hole when the opening/closing guide plate 24 opens and closes. The ventilation fan 34 is provided on the ceiling of the housing 1, and air is sent out through a ventilation hole 35 for the ventilation fan.

In the embodiment configured as described above, in order to keep the internal temperature of the housing constant and to open the cover 11 during hot weather, the lever handle 29 of the lever 18 is manually moved to the open position, that is, the lever 18'. When the roller 20 attached to the lever 18 is moved horizontally to the position, the roller 20 attached to the lever 18 moves horizontally together with the lever 18, and in conjunction with the movement of the roller 20, the oblique elongated hole 25 of the opening/closing guide plate 24, which is inserted and engaged with the roller 20, is moved horizontally. Due to the inclination of the opening/closing guide plate 24, the opening/closing guide plate 24 is moved upward.
The cover 11 can be opened to the position of the cover 11'. On the other hand, in cold weather, the cover 11 can be closed by operating the lever handle 29 in the opposite manner to when it was opened.

In this embodiment, the cover 11 can be easily opened and closed by reciprocating the lever handle in the horizontal direction, and when the lever handle 29 is released from the closed position, the elasticity of the rubber packing 16 is activated. The stopper of the lever handle part 29 is engaged, and when the lever handle part 29 is released from the open position, the stopper of the lever handle part 29 is engaged by the weight of the cover, and the lever handle part is held. Furthermore, in this embodiment, the operating direction of the lever handle is horizontal and does not require space occupied in the vertical direction, which has the effect of expanding the internal mounting space of the casing.

In the present invention, the roller is attached to the lever and the opening/closing guide plate is attached to the cover, but the same effect can be obtained by attaching the roller to the cover and the opening/closing guide plate to the lever. Furthermore, although the present invention allows the cover to be opened and closed from the ceiling of the case, it is also possible to open and close the cover not only from the ceiling but also from the side of the case or the door, allowing for optimal usage depending on the application. .

(Effects of the invention) As explained above, the present invention allows the cover to be opened and closed easily by reciprocating the lever, resulting in improved operability.
It has advantages such as good mountability and a wide range of applications.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an outdoor casing according to an embodiment of the present invention, Fig. 2 is a plan view showing a cross section of the roof, cover, casing, and door shown in Fig. 1; FIG. 4 is a front view showing a cross section of the roof with the front door of FIG. 3 opened, and FIG. 5 is a sectional view taken along B-B of FIG. 3. 1... Housing, 2... Front door, 3... Rear door, 4
... Hinge, 5 ... Intake hole, 6 ... Packing,
7... Guide frame, 8... Lock, 9... Roof, 10
... Base, 11 ... Cover, 11' ... Cover in open position, 12 and 13 ... Hinge, 14
...Shaft, 15...Cotter pin, 16...Packing,
17...Guide frame, 18...Lever, 18'...Cover after movement, 19...Shaft, 20...Roller, 21...Bracket, 22...Shaft, 23...
Cotter pin, 24... Opening/closing guide plate, 25... Oblique long hole, 26... Guide plate, 27... Stopper, 28
... Lever guide hole, 29 ... Lever handle part, 30
...Bending portion, 31... Display plate, 33... Hole,
34...Ventilation fan, 35...Ventilation hole.

Claims (1)

[Scope of utility model registration request] a casing, a lever with one end rotatably attached to the casing, a roller rotatably attached to a part of the lever, a cover with one end attached to the casing so as to be openable and closable, and fixed to the cover. and a lever provided with an opening/closing guide plate in which the roller is inserted and engaged in an oblique elongated hole, a stopper part that is attached to the housing and that fixes the lever, and a lever guide hole in which the lever is inserted and engaged. A cover opening/closing mechanism including a guide plate.