JPH0245503Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Technical Field) The present invention relates to a window device for a vehicle, particularly to a window device provided in an intake passage of an engine.

(Prior Art) An engine mounted on a vehicle is generally housed in a narrow space, and the flow resistance of intake air may cause a reduction in engine output. Therefore, a method is known in which an air intake inlet is extended from an air cleaner disposed close to the engine body to take in air from the front in the direction in which the vehicle is traveling. According to this method, air is always introduced from the front in the direction of travel of the vehicle, thereby preventing a reduction in output due to flow resistance of intake air.

However, if the air intake port is located at the front in the direction of travel of the vehicle, a problem arises in snowy regions where snow is sucked in and blocks the air intake port. Moreover, since the radiator and heat exchanger occupy space at the front of the vehicle, the intake port is usually biased to the left or right side of the front of the vehicle, and the intake port is located on the side of the vehicle. If the vehicle is biased towards the opposite direction, the rotation of the front wheels will cause more snow to be caught in the vehicle. This tendency is severe in cab-over vehicles where the air cleaner is placed below the cap. If the air cleaner was located below the cab, the air intake would be close to the ground, which caused the problem of a large intake of not only snow but also rain, mud, etc.

In order to solve the above-mentioned problem, a method can be considered in which a window device that can be opened and closed toward the inside of the vehicle is attached to a passage that takes in intake air from the engine from the front of the vehicle in the direction of travel.

(Problem to be solved by the invention) There are two types of window devices: one in which the door slides on a rail provided at the lower side edge of the opening, and the other in which the door swings. The latter method is recommended because it has the drawback of depositing on the rails and causing malfunction. However, the latter swing type door,
The means for holding it in the open position was complicated and caused problems in terms of cost.

An object of the present invention is to provide a window device with a simple structure and reliable operation in order to solve the above-mentioned conventional problems.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention introduces intake air into the engine from the front part in the direction of vehicle travel through an air cleaner, which is provided between the air cleaner and the front part. an air box formed on a side surface of the air box inside the vehicle, and a guide portion that is swingably supported to open and close an opening formed in the side surface of the air box inside the vehicle, and that has a substantially C-shaped cross section in a direction perpendicular to a pivot axis. a door; a spring means for biasing the door in a normally closed direction relative to the opening; a free end slidably engaged with the guide and a proximal end attached to the pivot shaft; a link member having a rod pivotally attached to opposing edges of the opening, a handle for pushing and pulling the rod through the opening is integrally formed with the rod, and the door is connected to the air box in the open position. The guide portion is disposed so as to face the air inlet from the front portion of the guide portion, and the angle between the guide portion and the link member is 90 degrees or less.

(Function) The free end of the link member with the rod engages with the guide on the door, and the pushing operation of the handle through the opening ensures that the door is held in the open position, and the pulling operation and spring means This function allows the door to close without any play.

(Example) The illustrated embodiment will be described in detail below.

1 and 2 are a plan view and a side view of an air intake device to which an embodiment of the present invention is applied, and in these figures, reference numeral 1 indicates the engine body. The engine body 1 is located along the vehicle traveling direction 2
It is placed in the middle of the book's side frame 2 (only one side is shown). Air cleaner 3 is side frame 2
The cleaner element is supported through a bracket 4, and is disposed laterally on the outside of the side frame 2, so that the cleaner element can be easily replaced from outside the vehicle. The engine body 1 and the air cleaner 3 are connected via a flexible hose 5. The air intake passage to the air cleaner 3 is composed of an air duct 7, an air box 9, and the like. The air duct 7 is fixed to the upper surface of the side frame 2 via screws 8, and the air intake port 10 opens toward the front in the vehicle traveling direction (rightward in the figure) and slightly rises from the upper surface of the side frame 2. air box 9
is interposed between the air duct 7 and the air cleaner 3, and is fixed to the side frame 2 via screws 11. Airbox 9 vehicle inner side 9
A window device 13 is attached to be openable and closable, and an air inlet 30 from the air duct 7 is formed in a front wall surface 9b perpendicular to the side surface 9a. window device 13
The details are shown in Figure 3. The window device 13 has an opening 1
5. Door 16, return spring 1 as spring means
7 and a rod 18 which is part of the link member. There is a door 1 near one side edge of the opening 15.
Brackets 19, 19 for pivotally supporting the rod 18 are arranged, and brackets 20, 20 for pivotally mounting the rod 18 are arranged near the opposing side edges. The door 16 has a sufficient area to close the opening 15, has rising parts 21, 21 on one side edge, and is guided approximately in the center of this side edge direction and in a direction perpendicular to this side edge. A portion 23 is formed. A pivot shaft 24 is fitted into the rising portions 21, 21 together with the brackets 19, 19, so that the door 16 can swing freely around the pivot shaft 24.

A return spring 17 is wound and resiliently mounted around the pivot shaft 24 between the rising portions 21, 21. Specifically, the return spring 17 has a shape in which, for example, a piece of piano wire is wound around the pivot shaft 24, with both ends extending toward the door 16 side and the middle portion extending toward the opposite side, so that the return spring 17 always keeps the door 16 open. 15 is biased in the direction of being closed. The guide portion 23 is a groove having a substantially C-shaped cross section as shown in FIG. A U-shaped body having a width L is formed so as to cover it. The width of the slit 25 of the guide portion 23 is equal to the groove width L at the end in the direction of the pivot shaft, as shown in FIG. 4b. The rod 18 is a rod-shaped body having a diameter smaller than the width l of the slit 25 of the guide portion 23, and has a tongue-shaped handle 27 welded to its substantially central portion. A cylindrical body 28 is welded to the base end (left end in the figure), and a support shaft 29 loosely fitted to the cylindrical body 28 is connected to a bracket 20,
20. A rod-shaped body 30 having approximately the same diameter as the rod 18 and shorter than the groove width L of the guide portion 23 is welded to the free end of the rod 18 . The rod-like body 30 is slidably engaged within the slit groove through the end of the slit 25 in the direction of the pivot shaft 24, that is, the slit end indicated by reference numeral 32 in FIGS. 5 and 6. The link member consisting of the rod 18, the cylindrical body 28, the rod-shaped body 30, and the handle 27 is constructed by first inserting the rod-shaped body 30 into the groove of the guide part 23, with the handle 27 facing inside the vehicle, and then inserting the cylindrical body 28 into the bracket 20. It is assembled by being pivotally connected via the support shaft 29. At this time, the length of the rod 18 is
In the open position of the door 16 shown by the broken line in FIG. 5, it is important that the angle θ between the door 16 and the rod 18 is less than 90 degrees when viewed from the opening 15.

With the above configuration, when changing the door from the closed position (shown by the solid line in Figure 5) to the open position (shown by the broken line in the figure), hold the handle 27 and push it into the air box (not shown). The rod-shaped body 30 at the free end of the rod 18 pushes the door 16 against the action of the return spring 17 while sliding in the groove of the guide portion 23. The rod-shaped body 30 stops sliding by abutting against the end 23a of the groove. At this time, the rod-shaped body 30 has passed its dead center and the link member is at an angle of 90 degrees or less with respect to the longitudinal direction of the guide part, so the door 16 can be maintained in its open position by releasing the handle 27. . Moreover, the door 16 in the open position is held in such a manner as to restrict the intrusion of air, snow, rain, and mud from the air inlet 30, as shown in FIG.
It can also function as a shielding lid for the air inlet 30.

When attempting to return the door 16 to the closed position, use the handle 2
When you grab 7 and pull it toward you, the angle between the link member and the door increases, and the return spring 17 exceeds 90 degrees.
Due to this action, the door 16 actively returns to the closed position.

(Effects of the invention) As described above, the present invention allows the handle to be operated with one hand.
Moreover, the door can be held in the open position by pushing the link member through the handle, and the door can be held in the closed position without wobbling by pulling the handle and receiving the action of the spring means.
The door in the open position can restrict air, snow, etc. from flowing into the air box from the front.

Further, in this embodiment, the window device 13 is connected to the air duct 7.
Since they are provided in the air box 9 instead, the openings 15 can be made larger, which is advantageous in that the intake resistance can be easily reduced and the amount of air taken into the engine can be increased.

[Brief explanation of the drawing]

1 and 2 are front and side views showing an example of a vehicle air intake device to which the window device of the present invention is applied, FIG. 3 is an exploded view showing this embodiment, and FIG.
The figure is a partial cross-sectional view for explaining the guide groove of the same embodiment, and FIGS. 5 and 6 are a cross-sectional view and a front view of the same embodiment. 15...Opening, 16...Door, 17...Return spring, 18...Rod, 23...Guide, 24...Pivot shaft, 29...Spin shaft, 9...Air box, 30...Air Inlet.

Claims (1)

[Scope of utility model registration request] In a device that takes air into the engine from the front of the vehicle in the direction of travel through an air cleaner, an air box provided between the air cleaner and the front, and an opening formed on a side surface of the air box inside the vehicle are opened and closed. A door is supported to be swingable as much as possible and is formed with a guide portion having a substantially C-shaped cross section in a direction perpendicular to the pivot axis, and the door is always biased in a closed direction with respect to the opening. spring means;
a link member having a rod having a free end slidably engaged with the guide portion and a base end pivotally connected to the edge of the opening opposite to the pivot shaft, the link member having a rod having a free end slidably engaged with the guide portion; A handle for pushing and pulling the rod through the opening is integrally formed, and the door is disposed so as to face the air inlet from the front to the air box in the open position, and the door is connected to the guide portion. A window device characterized in that the angle formed with the link member is 90 degrees or less.