JPH0141639Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a defroster device that prevents the inner surface of a driver's seat window glass from fogging up.

Defroster conventionally installed in the driver's seat of industrial vehicles etc. has a structure that blows hot air towards the glass surface from a nozzle installed on the inside of the window glass to remove fogging from the window glass. Because the diameter of the nozzle is small, it is necessary to install several nozzles and hoses to send hot air to these nozzles in order to remove fog from the entire surface of the glass. The train passes under the driver's feet, resulting in problems such as less leg space.

This idea was made with the aim of improving this problem. A wide ventilation channel was provided at the bottom of the glass at the front of the driver's cabin along the glass surface, and hot air was directed toward the glass surface at the top of this ventilation channel. In addition to providing an air outlet for blowing air, a defroster device is provided in the air outlet, which has a slit that is small on the hot air supply side and becomes larger toward the opposite side. It is designed to remove cloudiness from the entire surface.

This invention will be described in detail below with reference to an illustrated embodiment. In the figure, 1 is a driver's cab provided in an industrial vehicle, etc., and a driver's seat 2 is installed inside.
A control device 4 is mounted on the dart board 3 in front of the driver's cab 1.
is provided. Further, a glass 5 is fitted on the front surface of the driver's cab 1, and a ventilation passage 6 is installed in the lower part of the inner side of the glass 5. The ventilation passage 6 is made by bending a metal plate material into a substantially triangular cross section, and has a length approximately equal to the width of the glass 5, and includes a plurality of mounting pieces 6a protruding from the bottom surface.
It is attached to the dash board 3 by. Further, at the top of the ventilation passage 6, an air outlet 6b is opened to cover the entire width of the glass 5. This outlet 6b
is formed by opening a gap at a constant interval between the almost vertical rising side 6c and the oblique side 6d, and the upper edge of the rising side 6c has a ventilation passage 6.
A plurality of slits 6e are formed so as to be narrow on the side of the hose 7 connected to one end and gradually widen on the opposite side, and these slits 6e
This makes the volume of air blown onto the five glass surfaces uniform.

On the other hand, the other end of the hose 7 connected to one end of the ventilation passage 6 is connected to a hot air generation source 8 installed on the opposite side of the driver's seat 2 through the inside of the dashboard board 3.

FIG. 5 shows another embodiment in which a direction adjustment plate 9 for changing the hot air blowing direction is screwed onto the blowing outlet 6b.By changing the angle θ of this direction adjusting plate 9, the hot air blowing direction can be changed. can be changed arbitrarily.

As described in detail above, in this device, a ventilation passage 6 having an air outlet 6b covering almost the entire width of the glass 5 is provided at the inner lower part of the glass 5 to be defogged, and the hot air supply side of the air outlet 6b is provided with an air outlet 6b. Since the slit 6e has a narrow width, and the slit 6e has a width that gradually increases toward the opposite side,
The hot air homogenized by the slit 6e is transferred to the glass 5
The fog can be sprayed onto the entire surface of the glass 5, thereby completely removing fogging from the entire surface of the glass 5. In addition, since only one hose 7 can be connected to the ventilation path 6, there is no risk of the hose 7 passing under the driver's feet, reducing the space under the driver's feet, or protruding toward the side of the glass 5, obstructing the forward view. This can reduce the amount of damage.

Furthermore, by providing the direction adjustment plate 9 for changing the direction of the hot air at the blow-off port 6b, the direction of the hot air can be changed freely, so that fogging can be intensively removed from any arbitrary part of the glass 5.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, in which Fig. 1 is a front view, Fig. 2 is a sectional view, Fig. 3 is an enlarged front view of the ventilation passage, and Fig. 4 is a sectional view taken along the line of Fig. 3. FIG. 5 is an explanatory diagram showing another embodiment. 1 is the driver's cab, 5 is the glass, 6 is the ventilation path, 6b is the air outlet, 6e is the slit, 7 is the hose, and 8 is the hot air source.

Claims (1)

[Scope of utility model registration request] At the bottom of the inside of the glass 5 of the driver's seat 1 where fogging is to be removed, there is an air outlet 6 that covers almost the entire width of the glass 5.
A ventilation passage 6 is provided, and one end side of the ventilation passage 6 is connected to a hot air source 8 by a hose 7, and the connection side of the hose 7 is narrow and the hose 7 is connected to the outlet 6b of the ventilation passage 6 sequentially to the opposite side. A defroster device formed by forming a plurality of widening slits 6e.