JPH0640316U - Cooling water circulation line device for cab-over type vehicle engine - Google Patents

Abstract

(57) [Abstract] [Purpose] In a cab-over type vehicle, a cooling water circulation pipe line 7 that connects an engine 5 and a radiator 6 and a car heater without impairing the workability of press molding in the floor panel 2 of the cabin 3. Air is prevented from collecting in the middle of the car heater pipe line 13 that connects the engine 11 and the engine 5. [Structure] The cooling water circulation line 7 and the car heater line 1
3 is arranged so as to penetrate the front plate 2b and the rear plate 2c of the floor panel 2 and extend along the upper surface of the floor tunnel 2d.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a cabover type vehicle in which a body panel is provided with a floor panel forming a cabin for a driver, an engine is provided at a rear portion of the floor panel, and a front radiator and a car heater are provided. The present invention relates to a conduit device for circulating water between an engine, a radiator and a car heater.

[0002]

[Prior art]

 Conventionally, in a cab-over type vehicle as described above, for example, as described in Japanese Utility Model Publication No. 3-16749, a floor tunnel of a floor panel is provided with a floor tunnel in which the floor plate is recessed upward and backward. By making it extend in the same direction, the running wind hitting the radiator is configured to blow through the floor tunnel in the direction of the engine, while the cooling air that connects between the engine and the radiator upper tank is connected. The water circulation pipe line and the car heater pipe line connecting the engine and the car heater are arranged in the floor tunnel.

[0003]

[Problems to be solved by the device]

 By the way, since the entire floor panel is manufactured by press molding from a single metal plate, the height dimension of the floor tunnel formed on this floor panel is determined by the deep drawing during press molding. There is a limit value due to molding, and it cannot be set too high.

On the other hand, since the radiator upper tank and the car heater are arranged at a position higher than the floor plate in the floor panel, a cooling water circulation pipe line connecting between the engine and the radiator upper tank, and In order to arrange the car heater pipe connecting the engine and the car heater in the floor tunnel as in the conventional case, a part of the cooling water circulation pipe and the car heater pipe in the floor tunnel is Once you have to bend to lower it.

Therefore, since air is accumulated in the middle of the cooling water circulation pipe and the car heater pipe, not only the normal circulation of the cooling water between the engine and the radiator and the car heater is significantly hindered but also the radiator is prevented. There was a problem that the injection of cooling water to the engine side and car heater side was hindered, and the drainage of the cooling water deteriorated.

The present invention has a technical problem to solve this problem.

[0007]

[Means for Solving the Problems]

 In order to achieve this technical problem, the present invention provides a vehicle body frame with a floor panel forming a cabin for a driver, an engine at the rear part of the floor panel, and a radiator and a car heater at the front part. A cab-over type vehicle in which a floor tunnel between a front panel and a rear panel of the floor panel is formed by extending the floor tunnel so as to extend in the front-rear direction. A cooling water circulation pipe connecting the tank and a car heater pipe connecting the car heater and the engine are extended along the upper surface of the floor tunnel through the front plate and the rear plate of the floor panel. It was configured to be distributed.

[0008]

[Work]

 As described above, the cooling water circulation pipe line connecting the engine and the radiator upper tank and the car heater pipe line connecting the car heater and the engine are penetrated through the front plate and the rear plate of the floor panel, and the By arranging the cooling water circulation pipe and the car heater pipe so as to extend along the upper surface, the cooling water circulation pipe and the car heater pipe are directed from the engine to the radiator upper tank and the car heater while the height of the floor tunnel in the floor panel is kept low. As a result, the air can be prevented from accumulating in the middle because it can be formed into a substantially straight line that is inclined obliquely upward.

[0009]

[Effect of device]

 Therefore, according to the present invention, the normal circulation of the cooling water can be ensured between the engine and the radiator and the car heater without impairing the workability in the press molding of the floor panel, and the cooling water can be secured. It has the effect of preventing water injection and drainage deterioration.

[0010]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 indicates a vehicle body frame provided with a pair of left and right side frames 1a 1 and 1b extending in the front-rear direction of the vehicle. And a rear panel 2c, which is press-formed in a substantially U-shape so as to have an upward direction, is attached, and a cabin 3 is provided on an upper surface of the floor panel 2, and a rear portion of the floor panel 2 is provided. Is equipped with a seat 4.

An engine 5 is provided on the upper surface of the vehicle body frame 1 at a rear portion of the floor panel 2 and a lower portion of the seat 4, and a radiator for the engine 5 is provided at a front portion of the floor panel 2. 6 are respectively mounted, and a car heater 11 is arranged on the front upper surface of the floor panel 2. Further, a floor tunnel 2d formed by recessing the bottom plate 2a upward is formed in the bottom plate 2a of the floor panel 2 so as to extend in the front-rear direction.

Reference numeral 7 denotes a cooling water circulation pipe line from the cooling water outlet 5a in the engine 5 to the upper tank 6a in the radiator 6, and reference numeral 8 denotes a cooling water inlet in the engine 5 from the lower tank 6b in the radiator 6. Cooling water return to 5b Circulation pipe, reference numeral 12 is a cooling water supply pipe from the cooling water circulation pipe 7 to the car heater 11, and reference numeral 13 is cooling water from the car heater 11 to the engine 5. Reference numeral 14 denotes a return car heater conduit, and reference numeral 14 denotes a small diameter air vent conduit from the car heater conduit 13 to the upper tank 6a of the radiator 6, respectively.

The cooling water circulation conduit 7 and the car heater conduit 13 are arranged so as to penetrate the front plate 2b and the rear plate 2c of the floor panel 2 and extend along the upper surface of the floor tunnel. is there. The cooling water circulation pipe 7 and the car heater pipe 13 penetrate through the front plate 2b and the rear plate 2c of the floor panel 2 at grommets 9, 10, 15, 16 made of a soft elastic material such as rubber. Has been inserted. Further, a cover body 17 for the cooling water circulation conduit 7 and the car heater conduit 13 is detachably attached to the upper surface side of the floor tunnel 2d.

As described above, the cooling water circulation pipe line 7 and the car heater pipe line 13 are arranged so as to extend through the front plate 2b and the rear plate 2c of the floor panel 2 and extend along the upper surface of the floor tunnel 2d. By installing the cooling water circulation pipe 7 and the car heater pipe 13 while keeping the height dimension H of the floor tunnel 2d in the floor panel 2 low, the engine 5 to the upper tank 6a of the radiator 6 and the car heater are installed. It is possible to form a substantially straight line that is inclined obliquely upward toward 11.

[Brief description of drawings]

FIG. 1 is a side view of a cab-over type vehicle.

FIG. 2 is an enlarged plan view showing a main part of FIG.

3 is an enlarged sectional view taken along line III-III of FIG.

FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.

5 is a cross-sectional view taken along line VV of FIG.

[Explanation of symbols]

 1 Body Frame 2 Floor Panel 2a Floor Panel Floor Plate 2b Floor Panel Front Plate 2c Floor Panel Rear Plate 2d Floor Tunnel 3 Cabin 4 Seat 5 Engine 6 Radiator 11 Car Heater 7 Cooling Water Circulation Pipeline 13 Car Heater Pipeline

Claims (1)

[Scope of utility model registration request] 1. A vehicle body frame is provided with a floor panel for forming a cabin for a driver, an engine is provided at a rear portion of the floor panel, a radiator and a car heater are provided at a front portion thereof, and a front plate of the floor panel is provided. In a cab-over type vehicle in which a floor tunnel between the rear plate and the floor plate is formed so as to extend in the front-rear direction, the cooling water circulating pipe connecting the engine and the radiator upper tank. And a car heater pipe connecting the car heater and the engine,
Through the front plate and the rear plate in the floor panel,
A cooling water circulation conduit device in a cabover type vehicle engine, wherein the cooling water circulation conduit device is arranged so as to extend along an upper surface of the floor tunnel.