JPH1075549A - Ventilation device in movable power supply vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation device with a closing cover, in which the closing cover is opened or closed easily at a ventilation opening even when driving power by a compressor in tow car can not be used or the tow car is not provided, and the closing cover is not left in a closed or opened state carelessly. SOLUTION: A cover 3 slid freely on rails 4 and 5 is formed at a circumferential edge of a ventilation opening 2a. In this case the cover 3 is opened or closed in a slid state by rotating a handle 10 at a separation wall (W) through roller chains 18 and 19 and sprockets 14 to 17. In addition, limit switches 22 and 23 are provided. The limit switches 22 and 23 are operated when the closing cover 3 is slid, while an indication lamp is lit or put out in an interlocking way with the on and off of the limit switches 22 and 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile power supply vehicle equipped with an engine generator, and more specifically, to exhaust gas discharged from an engine portion of the engine generator and exhaust gas after cooling the engine generator. The present invention relates to an exhaust device for discharging wind to the outside of a vehicle.

[0002]

2. Description of the Related Art A mobile power supply vehicle equipped with a large-capacity power generation device utilizes its mobility, so that it can be used as a power supply for broadcasting television and radio broadcasts, a power outage, an emergency power supply in the event of a disaster, and a concert or the like performed outdoors. It is used for a wide range of applications, such as as a power source for equipment at various events. As a mounted power generator, an engine generator using an engine is generally used as a prime mover. Therefore, it is necessary to perform an exhaust air process for exhausting exhaust gas from the exhaust muffler device and exhaust air after cooling the engine generator to the outside of the vehicle. In this exhaust processing, an exhaust port is usually provided at the ceiling or side surface of the vehicle, and exhaust gas and exhaust air are discharged from the exhaust port to the outside. In recent years, since it is often used in places where the public gathers, such as event venues, the air outlet is often provided on the ceiling so that the exhaust air and noise do not spread to the side. In addition, since vehicles are frequently moved or stored outdoors, an open / close cover with rainwater countermeasures, etc., is attached to this exhaust port so that they can be opened and closed according to the operation of the engine generator. Has become.

Conventionally, as an opening / closing mechanism of the opening / closing cover, there is an excellent mechanism using an actuator utilizing compressed air such as an air cylinder. As shown in FIG. 8, a compressor for an air brake or the like mounted on a towing vehicle (truck) for towing a mobile power vehicle is used as an air source, and an air tank is connected to the compressor. The compressed air in the air tank is supplied to an opening / closing mechanism such as an air cylinder.

[0004]

Meanwhile, there is a so-called trailer type mobile power vehicle equipped with a large-capacity power generator, and in this case, a towing vehicle for moving the mobile power vehicle is used. Required separately. However,
Some types of towing vehicles cannot use the compressor as an air source.Also, use the towing vehicle only when moving, and remove the towing vehicle when the engine generator is running.
In some cases, it operates only on a power supply vehicle. Therefore, in this case, the above method cannot be used. A new compressor dedicated to the opening / closing mechanism of the opening / closing cover may be newly provided, or a piston cylinder with a built-in servomotor may be attached to open and close the opening / closing cover electrically. This occupies an occupied space, which imposes restrictions on the rational arrangement of other in-vehicle devices. If the air outlet is large,
In other words, if the size of the opening / closing cover is increased, these devices also need to be large in size from the viewpoint of reliability.

The present invention has been made in order to solve such a problem, and even when a drive source such as a compressor of a towing vehicle cannot be used or when the towing vehicle is disconnected, the present invention is applied to the invention. To provide an exhaust device for a mobile power supply vehicle that can easily open and close an opening / closing cover of a wind opening, occupies a small space in a vehicle, and prevents forgetting to close and open the opening / closing cover. It is an object.

[0006]

The present invention uses the following means to achieve the above object. First, even when there is no drive source, as a means for easily opening and closing the opening and closing cover, an engine generator and an exhaust muffler device are mounted inside the vehicle, and the exhaust gas from the exhaust muffler device is mounted on the ceiling. An exhaust port for discharging exhaust air after cooling the engine generator is formed, and in a mobile power supply vehicle equipped with an opening / closing cover for opening and closing the exhaust port, a rail is formed on a peripheral portion of the exhaust port. The handle is rotated via a drive transmission mechanism having a roller chain and a sprocket, so that the cover is slid on the rail to open and close. next,
As means for preventing forgetting to close and open the open / close cover, a limit switch that operates by sliding the open / close cover to open / close is disposed near the exhaust port, and is linked to ON / OFF operation of the limit switch. Lights,
An indicator light for turning off the light is provided.

[0007]

Embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 6 are explanatory views showing an exhaust device for a mobile power supply vehicle according to the present invention. FIG. 1 is an overall perspective view of a mobile power supply vehicle equipped with an exhaust device, and FIG. FIG. 3 is an exploded perspective view of the exhaust device at the time, FIG. 3 is a view taken in the direction of an arrow A when an opening / closing cover is attached in FIG. 2, and FIG. 4 shows a layout of an engine generator, an exhaust muffler device, and a drive transmission mechanism of the exhaust device. FIG. 5 is a longitudinal sectional view, and FIG. 5 is an explanatory view showing the operation of the open / close cover and the limit switch.
(A1), (b1), and (c1) are longitudinal sectional views when the open / close cover is fully closed, half-open, and fully open, respectively, and (a2), (b)
2) and (c2) are diagrams showing the lighting state of each indicator lamp. FIG. 6 is an explanatory view showing an embodiment in which the lock mechanism of the opening / closing cover is mounted on the handle. FIG. 7 is an explanatory view showing another embodiment of the drive transmission mechanism of the exhaust device.

"Schematic Description of Exhaust Device" The interior of the mobile power supply vehicle T is partitioned into a plurality of sections by partition walls W in the front-rear direction of the vehicle as shown in FIG. Reference symbol S indicates an engine generator room, in which an engine generator E is housed. Exhaust gas discharged from the engine portion of the engine generator E flows through an exhaust pipe U to an exhaust muffler device M installed in an adjacent exhaust chamber R, and is exhausted from a muffler exhaust port Ma. . The exhaust device 1 exhausts the exhaust gas exhausted from the exhaust muffler device M and exhaust air after cooling the engine generator (for example, exhaust air from a fan mounted near a radiator) to the outside of the mobile power supply vehicle T. This is a device for performing an air exhaust process by sliding an open / close cover 3 to open and close an exhaust port 2a formed in a ceiling portion 2 immediately above the exhaust chamber R. FIG. 1 shows a mobile power supply vehicle equipped with two engine generators, and is provided with two exhaust devices 1 having the same configuration.

Hereinafter, the exhaust device 1 according to the present invention will be described in detail. First, the slide opening and closing mechanism of the opening and closing cover 3 will be described. A rectangular air outlet 2a is formed in the ceiling portion 2 immediately above the air exhaust chamber R, and rails 4 and 5, which are members having a U-shaped cross section, are formed on upper left and right edges of the air outlet 2a.
However, it is attached so that the opening is directed to the left and right outer sides and along the vehicle front-rear direction. (Hereinafter, the left and right refer to the width direction of the vehicle, and the front and rear refer to the full length direction of the vehicle.) In addition, the upper edge of the front and rear of the exhaust port 2a has a substantially U-shaped cross section. An exhaust port frame member 7 having an inverted L-shaped cross section having an exhaust port frame member 6 and a flange portion 7b, which are members, is attached so as to be bridged between the rails 4 and 5 described above. Rails 4, 5
The exhaust port frame material 6 on the side extending from the exhaust port 2a is attached with its opening directed in the direction opposite to the exhaust port 2a. In addition, the other exhaust port frame member 7 has an opening directed upward, and the flange portion 7 b is connected to the exhaust port 2.
It is attached so that it comes to the a side. A reinforcing member 8 having an L-shaped cross section is attached to the exhaust port frame member 7 so as to reinforce the opening / closing cover contact surface 7a, which is a portion where the opening / closing cover 3 contacts, so as not to be deformed.

An open / close cover 3 is slidably opened / closed above the air outlet 2a. A plurality of, in this embodiment, two traveling rollers 9 are rotatably mounted on the left and right inner surfaces of the opening / closing cover 3 by a known method using a bracket or the like. An opening / closing cover 3 is provided so as to be able to run inside the U-shaped cross section of 5 (see FIG. 3). Needless to say, the diameter of the running roller 9 is appropriately set within the U-shaped cross section of the rails 4 and 5 so that the opening / closing cover 3 does not swing during sliding. In addition, the notch 3a cut out in the opening / closing cover 3 is a part through which the rails 4 and 5 penetrate, and is formed at four places.

The sliding opening / closing mechanism of the opening / closing cover 3 is configured as described above. When the opening / closing cover 3 is in the fully closed state, as shown in FIGS. And the openings of the rails 4, 5 and the exhaust port frame member 6 are all outwardly facing the exhaust port 2a, and the exhaust port frame member 7 is a flange portion. Since the openings 7b are arranged upward on the exhaust port 2a side, it is possible to prevent rainwater and dust from entering the inside of the vehicle in these opening spaces.

Next, a drive transmission mechanism for transmitting a driving force for opening and closing the cover 3 will be described with reference to FIGS. The present invention enables the opening and closing cover to be opened and closed even when there is no drive source such as a compressor.
The driving is performed manually by turning a handle by an operator. First, the shaft 11 is rotatably supported by a known method so as to penetrate a partition wall W inside the moving power supply vehicle T, and a handle 10 is attached to a tip portion on the engine generator room S side. A helical gear 12 is attached to the exhaust chamber R side. A helical gear 13 meshing with the helical gear 12 is rotatably supported by a bracket attached to the partition wall W. A sprocket 14 is attached to the shaft of the helical gear 13, and rotates in accordance with the rotation of the helical gear 13. A sprocket 15 rotatably supported by a bracket is located on the ceiling 2 directly above the sprocket 14, and the two sprockets 14, 15 are rotatably supported.
A roller chain 18 is bridged between them. Another sprocket 16 is attached to the shaft of the sprocket 15. A sprocket 17 is rotatably supported by a bracket at a position facing the sprocket 16 with the air outlet 2a interposed therebetween.
A roller chain 19 is stretched between the rollers 17.

A roller chain attachment 20 having screw holes for attachment is attached to the roller chain 19. On the other hand, on the inside of the ceiling of the opening / closing cover 3,
For connection with the roller chain attachment 20, a bracket 21 which is a member having a substantially U-shaped cross section is attached, and is fixed to the roller chain attachment 20 by screwing or riveting. As described above, the drive transmission mechanism rotates the handle 10 to move the roller chain 19 through the gears and reciprocate the roller chain attachment 20 between the front and rear edges of the air outlet 2a, thereby opening and closing the cover 3. It is configured to be able to open and close the slide. Note that the bracket 21 is attached to the inside of the ceiling of the opening / closing cover 3 close to the exhaust port frame member 7 in order to increase the open area of the exhaust port 2a as much as possible, that is, to increase the sliding distance of the opening / closing cover 3. .

By arranging the drive transmission mechanism of the opening / closing cover only with the manual handle, the gears and the roller chain, the space occupied in the vehicle can be reduced, and the electric system and the air system can be reduced. Since there is no system at all, there are fewer failures, and there is an advantage that maintenance becomes very easy. In addition, by using a helical gear, which meshes more smoothly than a spur gear, as the gear that transmits the drive, the open / close cover can be opened and closed directly by hand, such as when checking the exhaust port or when the handle is damaged. Even in this case, it is possible to smoothly slide the opening / closing cover.

Next, another embodiment of the drive transmission mechanism will be described with reference to FIG. A rack 28 is fixed inside the ceiling of the opening / closing cover with screws or the like. Also, in the vicinity of the exhaust port frame material on the side where the open / close cover slides,
A gear 29 is rotatably supported by the bracket so as to mesh with the rack 28. Sprocket 3 on the shaft of gear 29
0 is attached, and is connected to the above-described manual handle via a roller chain. Even if the drive transmission mechanism is configured in this manner, the opening and closing cover can be slid open and closed by the rotation of the gear 29.

Next, the exhaust device 1 has an exhaust port 2 such as a control room.
Display means is provided to enable the user to check the open / closed state of the open / close cover 3 even at a location distant from “a”. As shown in FIG. 5, the air outlet 2 a
Two limit switches 22, 23 are mounted via brackets. An inverted U-shaped switch switching member 24 having a flange portion is fixed to a bracket 21 for connecting the roller chain 19 attached to the inside of the ceiling of the opening / closing cover 3 with a screw or the like. The switch switching member 24 in accordance with the opening / closing operation of
Are brought into contact with the limit switches 22 and 23 so that the limit switches 22 and 23 are turned on and off. In the present embodiment, the limit switches 22 and 23 use a roller lever type, and when the roller at the tip abuts against the flange of the switch switching member 24 and the lever is tilted by a predetermined angle, the switch is activated. It has become.

The control panel of the control room is provided with an indicator light 25 composed of an LED or the like. The indicator lamp 25 is connected to the limit switches 22 and 23 via a relay circuit, and is configured to light up in accordance with the operation of the limit switches 22 and 23. FIG. 5 (a1), (b1)
(C1) is a diagram showing the fully closed, half open, and fully open states of the exhaust port 2a, respectively, for example, as shown in FIGS. 5 (a2), (b2),
As shown in (c2), two indicator lamps 25 are provided, and when the exhaust port 2a is fully closed, both indicator lamps 25 are extinguished, when half open, only one is illuminated, and when fully open, both are illuminated. Thus, the indicator lamp 25 can be turned on in accordance with the state of the air outlet 2a. In this way, if the indicator light is provided at a location away from the exhaust port, such as the control room or the vicinity of the above-described manual handle, and further, the vehicle side wall outside the vehicle,
You can check at a glance whether the air outlet is open or closed,
It is possible to prevent forgetting to close and open the opening / closing cover.

Next, an embodiment in which the exhaust device according to the present invention is provided with a lock mechanism for preventing displacement of the opening / closing cover will be described. The larger the opening / closing cover, the larger the weight of the cover itself, which increases the frictional resistance with the rails.Also, due to the meshing friction between the sprocket of the drive transmission mechanism and the roller chain, etc. Even when vibration is applied to the vehicle, such as when the vehicle is moving, the position of the open / close cover does not shift. However, the opening and closing cover is small,
If there is a possibility that a positional shift may occur, a lock mechanism for the opening / closing cover is required. The lock mechanism can be, of course, a known lock device such as a spring lever type mounted on the opening / closing cover itself or on a rail or the like. However, from the viewpoint of reliability and difficulty in repairing in the event of a breakdown, the ceiling of the vehicle is required. The method of providing the parts is not desirable. FIG. 6 shows an example in which this lock mechanism is attached to a handle. The shaft 11 is rotatably supported in a pipe member 26 fixed to the partition wall. Through holes are formed in the upper and lower portions of the pipe member 26, and a plurality of through holes are also formed in the shaft 11 (FIG. 6A shows a state where the shaft 11 is pulled out). In this way, by rotating the handle 10 to a predetermined position and inserting the pins 27 into both through holes, the rotation of the shaft 11 is locked, and the displacement of the open / close cover can be prevented.

The preferred embodiment of the exhaust device for a mobile power supply vehicle according to the present invention has been described above. The main feature of the present invention is that first, a drive transmission mechanism is constituted by a roller chain, a sprocket, and the like. And no air system,
The opening / closing mechanism of the opening / closing cover is manually operated in a vehicle that is easy to operate. It is. The drive transmission mechanism and the open / close state display means of the open / close cover, or the slide mechanism and lock mechanism of the open / close cover are not limited to those shown in the drawings in shape, member configuration, mounting position, etc. Various design changes can be made without departing from the gist of the present invention, for example, provided outside.

In the above-described embodiment, the exhaust port is formed in the ceiling just above the exhaust muffler device. However, the exhaust device according to the present invention has such an exhaust muffler device and an exhaust port. The present invention can be implemented without any restrictions on the positional relationship with the air outlet, the configuration of the exhaust muffler device, the engine generator, and the like, and the indoor layout. For example, due to the rational arrangement of each device, even in the case of a mobile power supply vehicle in which the exhaust port is formed at a location separated from the exhaust muffler device and the engine generator via an exhaust duct or an exhaust passage. The exhaust device of the present invention can be implemented only by appropriate design changes.

[0021]

According to the exhaust device of the present invention, the following effects can be obtained. (1) Since the opening / closing cover is opened / closed by the handle, opening / closing can be performed even when a drive source such as a compressor of the towing vehicle cannot be used or when there is no towing vehicle. Further, by providing the handle in the engine room or the like, it is possible to perform a safe opening / closing operation without having to climb a dangerous ceiling. In addition, the drive transmission mechanism of the open / close cover is made up of gears, roller chains, and sprockets only, which can reduce the space occupied in the vehicle. It will be easier. (2) By providing an indicator light that indicates the open / closed state of the openable cover, the state of the openable cover can be checked at a glance even in a place distant from the exhaust port, such as in a control room or in the vicinity of a manual handle. It is possible to prevent forgetting to close and open the opening / closing cover. (3) Since the opening and closing cover is slidably opened and closed, unlike the structure in which hinges are used to open and close the opening and closing cover, there is no obstruction in the space just above the open air outlet, so that efficient exhaust is possible. Wind processing becomes possible. Also, since there will be no part that protrudes from the ceiling,
The aesthetics can be maintained from the viewpoint of vehicle design. (4) By providing a lock mechanism for the opening / closing cover on the handle, not only the lock operation is facilitated, but also the repair and maintenance are facilitated as compared with the case where the lock mechanism is provided on the exhaust port, and a highly reliable lock is provided. The structure can be realized.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a mobile power supply vehicle equipped with an exhaust device according to the present invention.

FIG. 2 is an exploded perspective view of the exhaust device when an opening / closing cover is separated.

FIG. 3 is a view showing a state where an opening / closing cover is attached in FIG. 2;
It is an arrow view.

FIG. 4 is a vertical sectional view showing a layout of an engine generator, an exhaust muffler device, and a drive transmission mechanism of an exhaust device.

5 (a1), (b1), and (c1) are longitudinal sectional views when the open / close cover is fully closed, half-open, and fully open, respectively.
(A2), (b2), (c2) are diagrams showing the lighting state of each indicator light.

FIG. 6 is an explanatory view showing an embodiment in which a lock mechanism of an opening / closing cover is mounted on a handle.

FIG. 7 is an explanatory diagram showing another embodiment of the drive transmission mechanism of the exhaust device.

FIG. 8 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Exhaust device 2 Ceiling part 2a Exhaust opening 3 Opening / closing cover 4, 5 rails 6, 7 Exhaust opening frame material 7a Opening / closing cover contact surface 7b Flange part 8 Reinforcement material 9 Running roller 10 Handle 11 Shaft 12, 13 Helical gear 14- 17 Sprocket 18, 19 Roller chain 20 Roller chain attachment 21 Bracket 22, 23 Limit switch 24 Switch switching member 25 Indicator light 26 Pipe member 27 Pin 28 Rack 29 Gear 30 Sprocket T Moving power supply car E Engine generator M Exhaust muffler Ma Muffler Exhaust port S Engine generator room R Exhaust chamber U Exhaust pipe W Partition wall

Claims (2)

[Claims] An engine generator and an exhaust muffler device are mounted inside a vehicle, and an exhaust port for discharging exhaust gas from the exhaust muffler device and exhaust air after cooling the engine generator is formed in a ceiling portion. In the mobile power supply vehicle provided with an opening / closing cover for opening and closing the exhaust port, a rail is formed on a peripheral portion of the exhaust port, and a handle is rotated via a drive transmission mechanism having a roller chain and a sprocket. Thereby, the open / close cover is slid on the rail to open / close the cover, so that the air exhaust device of the mobile power supply vehicle is provided. 2. A limit switch that is operated by opening and closing the open / close cover in the vicinity of the air outlet, and an indicator light that turns on and off in conjunction with the ON / OFF operation of the limit switch is provided. The exhaust device for a mobile power supply vehicle according to claim 1, wherein: