JPS6139611Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ventilation system for vehicles, and more specifically, it is a two-way ventilation system that is mainly used in large vehicles such as buses and trucks, and whose ventilation lid can be tilted in two directions, front and rear. It provides equipment.

BACKGROUND ART Ventilators are used in large vehicles such as buses to purify the air inside the vehicle and adjust the temperature inside the vehicle. As an example of this ventilation system, Utility Model Publication No. 45-21048 has been proposed.

The ventilation system is a device in which a ventilation opening provided on the roof of a vehicle is provided with a ventilation cover that is opened and closed by a link mechanism. This device raises and lowers the front end of the ventilation lid connected to the end of this link mechanism in the direction of travel of the vehicle by raising and lowering the handle attached to the back side of the ventilation lid in two stages. air supply) or
The device is also configured to perform three operations: raising the rear end of the ventilation lid to perform suction ventilation (exhaust air), and closing the ventilation opening with the ventilation lid.

The ventilation system is also known as "2-way ventilation system"
This is a device that performs suction ventilation at the first opening position and forced ventilation at the second opening position, and is superior in that it has a relatively simple structure. However, there are some problems, and it is not necessarily an effective device.

The first problem is that when the end of the ventilation lid at the rear in the direction of vehicle travel is lifted to the first opening position to ventilate the inside of the company, the ventilation lid is pushed up by the elastic force of the end spring. The ventilation lid is unstable because there is only a Therefore, a strong spring must be used to open the ventilation lid with enough elastic force to withstand the wind pressure. Using such a strong spring naturally makes it difficult to open and close one cannula.

The second problem is that in order to open and close the ventilation lid, you have to hold the handle on the back side of the lid and move it up and down, so when you open the ventilation lid wide in the direction of travel of the vehicle or when you close the ventilation lid. (operation from the first open position A to the second open position A, and operation to close the ventilation cover from the second open position A), the handle may protrude outside the vehicle, and this handle may become Because it rises to a high position, many people cannot reach it.
It becomes difficult to open and close the ventilation lid.

Furthermore, it is very dangerous to have your hands sticking out of the vehicle when opening and closing the ventilation cover.

The third problem is that the ventilation opening cannot be obstructed because it is necessary to directly operate the handle provided on the back side of the ventilation lid. For this reason, it is difficult to adjust the direction of air supply by providing a louver in the ventilation opening. Furthermore, leaving the ventilation opening open without providing anything behind it has the disadvantage of spoiling the aesthetics, and is not particularly suitable for buses.

The present invention was developed in order to eliminate the drawbacks of conventional ventilation systems, and provides a device that has a simple structure and does not have a lever or the like protruding into the vehicle interior. The configuration is
A guide rail is provided in the front and rear direction of the vehicle opening,
Supports that move on this guide rail are provided at the front and rear, a lid for closing the opening is pivotally attached to the ends of these supports, and this support can be fixed at any location on the guide rail. This is a ventilation system for a vehicle characterized in that an elastic force is applied in a direction to close the lid.

Next, an embodiment of the present invention will be described with reference to the drawings. Figure 1 is a side sectional view showing the general structure of the vehicle ventilation system according to the present invention, and Figure 2 is a front view of the ventilation system seen from the bottom. It is a diagram.

First, the outline of the ventilation system of the present invention will be explained with reference to these drawings.

In the ventilation system R of the present invention, a guide rail 4 (guiding member) is provided at the center of the edge 3 of an opening 2 formed in the roof 1 of a vehicle in the longitudinal direction of the vehicle. The upper part of the opening 2 has this opening 2.
A lid 5 is provided to close the lid. There is a T between the front and rear of this lid 5 and the guide rail 4.
A bar 7 (support) is provided in each case. This T
An adjustment knob 8 (support stopper member) is provided on the portion of the bar 7 that engages with the guide rail 4 so as to move along the guide rail 4. T-bar 7
The lower end of the lid 5 is moved along the guide rail 4 to open the lid 5 forward and backward.

Next, details of each member constituting the ventilation device R of the present invention will be explained.

3A, B, and C show the details of the guide rail 4 (guiding member).
b is a guide surface of the T-bar 7, and 4c is a locking surface of the adjustment knob 8.

As shown in FIG. 3A, two elongated holes 9 are provided in the guide surface 4b in the front-rear direction of the guide rail 4. In addition, as shown in FIG. 3B, the locking surface 4
c is provided with a long hole 10 in the length direction.

Figure 4 shows T-bar 7 (supporting member) and spring 1.
1, the T-bar 7 has a portion 7a that engages with the lid 5, a support portion 7b extending perpendicularly to the center of the portion 7a, and a slide portion 7c provided at the end of the support portion 7b. It is composed of

FIG. 5 shows the engagement portion between the T-bar 7 and the guide rail 4. A threaded portion 7d is provided at the center of the slide portion 7c, and the length of the guide rail 4 is attached to this threaded portion 7d. A bolt 12 is provided passing through the hole 9. This bolt 12 is inserted into the elongated hole 9 of the guide rail 4 and is screwed into the threaded portion 7d of the slide portion 7c while moving therein.

As shown in FIGS. 2, 6, 7, and 8, the end of the engaging portion 7a of the T-bar 7 is supported by a bearing 13 fixed to the lid 5 by a bracket 6. There is. Further, this bracket 6 is fixed to the lid 5 with screws 14 or rivets.

In this embodiment, the spring 11 has an elastic force that presses the lid 5 toward the edge 3 provided around the opening 2 of the roof 1 (closes the opening 2). There is.

As shown in FIG. 8, a weather strip 15 is provided around the edge 3 to maintain watertightness. When the lid 5 is tilted in the front-rear direction for ventilation, the lid 5 is opened and closed using this as a cushion and as a center of rotation.

FIG. 9 shows details of the adjustment knob 8 for fixing the T-bar 7 to an appropriate location on the guide rail 4. An adjustment knob 8 protrudes inside the guide rail 4, and a rotation stop 16 is screwed into a screw provided at the tip of the adjustment knob 8. Therefore, by operating this adjustment knob 8, the rotation stop 16 and the adjustment knob are connected. 8 and the locking surface 4c of the guide rail 4.
By holding the adjustment knob 8 in place, it is possible to fix the adjustment knob 8 to an appropriate location on the guide rail 4.

Next, a method of operating the vehicle ventilation system R according to the present invention will be explained.

In FIG. 1, one example shows air supply, and the O side shows exhaust air.

If you want to set the air supply state now, loosen the adjustment knob 8 provided on the guide rail 4, move it in the direction of arrow A in FIG.
is moved in the direction of the arrow. During this operation, the engaging part 7a of the T-bar 7 rises, so the lid 5 connected to the engaging part 7a via the bearing 13 opens in one direction, that is, in the air supply direction, and becomes the state 5A. .

Once the inclination of the T-bar 7, that is, the open state of the lid 5 is adjusted by moving the adjustment knob 8 as described above, the adjustment knob 8 is rotated and fixed to the guide rail 4. Note that the T on the O side
As mentioned above, the bar 7 has an elastic force acting on it to keep the lid 5 closed at all times due to the spring 11 (see Fig. 6). 3 weather strip 1
5 side to help the lid 5 incline using the weather strip 15 as a fulcrum. When exhausting air, the O side of the lid 5 is raised, and by moving the adjustment knob 8 to the opposite side of the arrow A, the lid 5 is placed in the state 5B.

FIG. 10 shows a second embodiment of the present invention, in which adjustment knobs 8 are attached to the slide portions 7c of the T-bar 7.
a, and a spring 18 is provided between the slide portions 7c to apply an elastic force to the slide portions 7c to constantly move them in the longitudinal direction of the vehicle.

Therefore, by fixing one adjustment knob 8a, loosening the other adjustment knob 8a, moving it to an appropriate position, and fixing it, the lid 5 can be tilted at a predetermined angle to perform air supply or exhaust operations. This makes it possible to do so.

In the embodiment described above, the spring 18 exerts an elastic force in the direction in which the lid 5 is always opened.

FIG. 11 shows a third embodiment of the present invention, in which the slide portion 7c of the T-bar 7 is screwed so that the slide portion 7c moves within the guide rail 4, and a spring is inserted between the front screws 19. 20 is provided so as to be tensioned, and the spring 20 applies an elastic force in a direction in which the lid 5 is always closed. Further, a rotation stop 16 is provided between the two slide portions 7c, and the adjustment knob 8 is screwed into this rotation stop 16.

When operating the ventilator configured as described above, all you have to do is move the adjustment knob 8 to open it, and the opposite side 7c is pulled by the spring 20, so do not move it, but open it. remains closed.

In the embodiment described above, the T-bar 7 was used as the support member for the lid 5. Although this shape of the support member is most preferable, due to design considerations, the T-bar 7 was used as the support member for the lid 5.
It is clear that the shape may be similar to that of the shape.

The vehicle ventilation system according to the present invention is a device in which a lid 5 is provided to open and close the edge 3 of the opening 2 of the roof 1 as described above. A guide rail 4 is provided in the center, and this guide rail 4 is used to guide the lower ends of supports (T-bar 7 in the embodiment) provided before and after the lid 5,
By applying an elastic force to this support, an elastic force is applied to the lid 5 in a certain direction (in the embodiment, the elastic force is applied in a direction in which the lid 5 is always closed). Since a member (adjustment knob 8 in the embodiment) for fixing the lower end of the support body to an appropriate location on the guide rail 4 is provided, the following effects can be achieved.

(a) The mechanism for opening and closing the lid 5 is the guide rail 4.
and the T-bar 7 moving within this guide rail 4.
This is composed of an adjustment knob 8, etc. that positions this at an appropriate location, and this structure is the same or almost the same in both the front and rear directions of the vehicle, so when manufacturing the ventilation system, This makes it extremely easy to manufacture parts and also to manage parts.

Further, as described above, the opening/closing operation of the lid 5 is performed by rotating the adjustment knob 8, loosening it, and sliding it within the guide rail 4, thereby opening and closing the lid 5. can be moved and fixed at an appropriate location.

(b) While the adjustment knob 8 is in operation, the sliding portion 7c of the T-bar 7 moves in the longitudinal direction of the vehicle along the guide rail 4, and is fixed to the lid engaging portion 7b of the T-bar 7. Since the lid 5 is tilted by moving one of the lids 5 up and down, the open state of the lid 5 can be maintained by tightening the adjustment knob 8 when the lid 5 is tilted at an appropriate angle. It is.

Since the opening state of the lid 5 is adjusted by moving the adjustment knob 8, the opening state of the lid 5 can be adjusted in a stepless manner, preferably from 0° to 90° (the T-bar is approximately 90° with respect to the guide rail). It becomes possible to freely adjust the aperture state within the range (up to orthogonal). Also, when closing the lid 5, loosen the adjustment knob 8 to close the spring 11.
The free end of the T-bar 7 (sliding portion 7c)
Since the lid 5 attempts to return to the center of the guide rail 4, the lid 5 can be automatically closed.

(c) Since the lid 5 is pushed up by the T-bar 7, which is a support, the lid 5 will not close due to wind pressure.

(d) The lid 5 can be opened by simply moving the adjustment knob along the guide rail 4 provided at the opening 2, so the operator has to extend his hand above the roof 1 to open the lid 5. Nothing happens.

(E) Since only the guide rail 4 is provided on the back side of the opening 2, a louver or the like can be provided at the opening.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a side sectional view showing the schematic structure of a vehicle ventilation system, Fig. 2 is a front view showing the state seen from below, and Fig. 3 is A, B and C show a front view, a plan view, and a cross section of the front view of the guide rail provided at the opening of the roof. Figure 4 shows the T-bar which is a support body,
A front view showing the combination with a spring that applies an elastic force to the T-bar in the up-and-down direction, and FIG. 5 is an exploded view of the portion that engages the T-bar with the guide rail.
FIG. 6 is a side view showing a portion where the T-bar is rotatably supported on the lid, and FIG. 7 is a front view thereof. 8th
The figure is a cross-sectional view of the support part of the lid, and FIG. 9 is a cross-sectional view showing the relationship between the adjustment knob and the guide rail. FIG. 10 is a sectional view showing the relationship between the guide rail and the support body in the second embodiment. FIG. 11 is a sectional view showing the relationship between the guide rail and the support body in the third embodiment. 1... Roof, 2... Opening, 3... Edge, 4
...Guide rail, 4a...Mounting surface, 4b...
T-bar guide surface, 4c...adjustment knob locking surface, 5...
... Lid, 6 ... Bracket, 7 ... T-bar (support body), 7a ... Engagement part, 7b ... Support part, 7
c...Slide part, 8...Adjustment knob, 9, 10...
...Long hole, 11...Spring.

Claims (1)

[Scope of utility model registration request] A guide rail is provided in the front and back direction of the opening of the vehicle, a support that moves on the guide rail is provided in front, a lid for closing the opening is pivotally attached to the end of these supports, and the support The body can be fixed to any part of the guide rail, and
A ventilation system for a vehicle, characterized in that an elastic force is applied in a direction to close a lid.