JP3184944U - Gas fuel tank mounting fixture for vehicle and gas fuel tank mounting structure for vehicle - Google Patents

Abstract

A vehicle gas that can securely fix and install a general-purpose tank in a spare tire storage section above a floor panel under a cargo compartment and reduce the risk of gas intrusion into the cargo compartment. A fuel tank fixture is provided.
A mounting frame 20 and a cover 40 that covers the outside of the mounting frame 20 so as to be hermetically sealed are provided in a storage portion 3 formed in an upper portion of a floor panel 2 under a cargo compartment 1 of a vehicle and capable of storing a spare tire. It was. The mounting frame 20 includes an outer frame 22 that can be fixed to the vehicle-side frame, and an inner frame 30 that can be fixed to the outer frame 22 and can fix the gas fuel tank X. Further, the cover 40 is sealed at the boundary with the floor panel 3.
[Selection] Figure 1

Description

  The present invention relates to a mounting device for a gas fuel tank for a vehicle for additionally mounting a gas fuel tank such as an LPG fuel tank in a storage portion above a floor panel of the vehicle, and a mounting structure using the mounting tool.

  A “bi-fuel vehicle” that uses LPG gas or the like as a fuel is known. Such a bi-fuel vehicle is a vehicle that can switch between existing gasoline fuel and gas fuel such as LPG using a fuel injection switching device and use different fuels. In recent years, the use has become widespread due to heightened awareness of environmental protection and fuel consumption reduction, and it is widely used especially in Western countries. In the future, this field is expected to be widely used in Japan.

  Conventionally, in order to obtain such a bi-fuel vehicle, a gas fuel tank such as an LPG fuel tank may be additionally attached to an existing gasoline fuel vehicle. In such a case, the fuel tank may be attached to the attachment portion from which the spare tire is removed for a vehicle in which the attachment portion for the spare tire is provided under the cargo compartment at the rear of the vehicle or under the floor panel outside the vehicle. On the other hand, some vehicles have a spare tire storage part in the floor under the cargo compartment. The same tank as this storage part is installed in the storage part as it is. There are many mounting kits that use tanks with external shapes.

  For example, the following are known as conventional fixtures for attaching a heavy object such as an LPG fuel tank under the floor panel. First, remove the spare tire under the rear floor panel. Next, when it is desired to set the lower end position of the LPG fuel tank to a higher position due to problems such as securing the minimum ground clearance, one of the members is required as needed to install the LPG fuel tank closer to the rear floor panel. The part is excised. Next, a bolt insertion hole is opened at an appropriate position in the floor panel. And after arrange | positioning the bracket for a volt | bolt fixation on a floor panel upper side, a bolt front-end | tip protrudes toward the bolt insertion hole of a floor panel toward this lower side via this bracket. On the other hand, on the lower side of the floor panel, a bolt is inserted into a support frame for fixing the tank, and a nut is screwed onto the bolt inserted from the upper side of the floor panel to fix the tank (see, for example, Patent Document 1). .

Japanese Unexamined Patent Publication No. 2000-219049 (FIG. 1, FIG. 4 etc.)

  If it is difficult to mount the tank under the floor panel outside the cargo compartment or outside of the vehicle with conventional fixtures, install the tank in the spare tire storage section inside the floor panel under the cargo compartment as described above. Is required. However, when it is necessary to install a tank having a normal shape, such as a tank having the same shape as the spare tire cannot be used, it cannot be installed in the spare tire storage unit as it is.

  The purpose of the present invention is to solve the above-mentioned problems of the prior art, and when installing a tank in the spare tire storage part above the floor panel under the cargo compartment, An object of the present invention is to provide a vehicle gas fuel tank fixture that can be securely fixed in a storage portion even in a tank and can reduce the risk of gas intrusion into a cargo compartment. .

What solves the said subject is as follows.
(1) The vehicle gas fuel tank fixture of the first means of the present invention is:
An outer frame that is formed in the upper part of the floor panel under the cargo compartment of the vehicle and can be installed in a storage unit that can store a spare tire; and an outer frame that can be fixed to the vehicle-side frame;
An inner frame that can be fixed to the outer frame and that can fix the gas fuel tank;
And a cover for covering the outside of the mounting frame so as to be hermetically sealed.

  According to the present invention, since the gas is leaked from the fuel tank stored in the fixture because it is sealed by the cover, the gas can be prevented from entering the cargo compartment. In addition, since gas can be prevented from entering the cargo compartment, there is no need to attach a cover called a “container” for preventing gas leakage near the valve of the fuel tank. Therefore, the size of the fuel tank including the accessory can be limited. Therefore, it is possible to reduce the difficulty of installing the fuel tank in the storage unit.

(2) The vehicle gas fuel tank fixture according to the second means of the present invention is the vehicle gas fuel tank fixture according to the first means described above, wherein the cover includes the floor panel. It is characterized in that it is sealed at the boundary part.

  By sealing the cover in this way, the risk of gas intrusion into the cargo compartment can be further reduced.

(3) The vehicle gas fuel tank fixture according to the third means of the present invention is the vehicle gas fuel tank fixture according to the first or second means described above, and is an upper opening of the attachment frame. The part and the cover are sealed by packing.

  By sealing the cover in this way, the risk of gas intrusion into the cargo compartment can be further reduced.

(4) A vehicle gas fuel tank fixture according to a fourth means of the present invention is the vehicle gas fuel tank fixture according to any one of the first to third means described above, wherein the cover Has a peep window that can be sealed by a lid.

  By providing such a viewing window, the fuel tank housed in the fixture can be visually observed without removing the entire cover, and maintenance work can be facilitated. Further, by providing a lid that can seal the viewing window, intrusion of gas can be prevented in normal times.

(5) A vehicle gas fuel tank mounting structure according to a fifth means of the present invention includes the vehicle gas fuel tank mounting device according to any one of the first to fourth means described above, and the floor. The panel is characterized by having a vent.

  By providing such a vent in the floor panel, the gas that has leaked can be discharged to the lower side of the vehicle, and the risk of gas intrusion into the room can be further prevented.

(6) The vehicle gas fuel tank mounting device according to the sixth means of the present invention is the vehicle gas fuel tank mounting structure according to the fifth means described above, and can close the vent. In addition, a removable cap is provided in the vent, and the cap is provided with a vent hole.

  By providing such a cap, it is possible to prevent water from entering the storage portion during running in the rain or the like, and to prevent rust and the like on the floor panel. Further, by providing a vent hole, gas can be discharged out of the vehicle below the floor panel even when the cap is attached to the vent 50, and gas can be discharged out of the vehicle at the same time.

  Since the vehicle gas fuel tank fixture of the present invention has the above-described configuration, a general-purpose tank having a shape different from the storage portion is provided in the storage portion of the spare tire in the floor panel under the cargo compartment. Can be reliably installed. Further, it is possible to reliably prevent gas from entering the cargo compartment.

FIG. 1 is a perspective view of the fixture of the present invention in an installed state excluding an upper cover. FIG. 2 is a six-side view of the mounting frame of the fixture of the present invention. FIG. 3 is an exploded view of the cover of the fixture of the present invention. FIG. 4 is a bottom perspective view of a part of the mounting frame and the cover. FIG. 5 is an explanatory diagram of the periphery of the lower part of the floor panel. FIG. 6 is an explanatory view of the periphery of the floor panel in a state where the floor board is covered after the fixture is installed. FIG. 7 is an explanatory diagram of the upper part of the floor panel before mounting. FIG. 8 is an explanatory diagram of a state in which the outer frame is attached to the upper portion of the floor panel. FIG. 9 is an explanatory diagram of a state in which the outer frame is sealed. FIG. 10 is an explanatory diagram of a state in which the upper cover is attached.

  A vehicle gas fuel tank fixture of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 and 4, the fixture 10 of the present invention includes a steel mounting frame 20 and a steel cover 40. In this example, an LPG fuel tank is used as an example of a gas fuel tank. It is for attaching X. Moreover, as shown in FIG. 6, the fixture 10 of this example is formed in the upper part of the floor panel 2 under the board 4 in the cargo compartment 1 of the vehicle, and in the storage part 3 capable of storing spare tires in the lower part. It is supposed to be attached. The fixture 10 is configured to install the fuel tank X above the floor panel 2, but is configured so that gas does not enter the cargo compartment 1 and the vehicle compartment even if gas leaks from the fuel tank X. ing.

  As shown in FIGS. 2 to 4, the entire mounting frame 20 is provided as a hexagonal frame body having a low height and a slightly rectangular shape. The cover 40 is attached so as to cover the outer periphery of the attachment frame 20.

  As shown in FIG. 2, the attachment frame 20 includes an outer frame 22 and an inner frame 30. The outer frame 22 is formed in a shape along the inner peripheral wall of the storage portion 3, and is a hexagonal frame body having a low height and a little close to a rectangular shape. The front surface is formed in a flat plate shape, and the rear surface has a shape having two corners slightly protruding rearward. At the lower portions on both sides of the outer frame 22, mounting pieces 24 having two mounting holes are respectively provided. These mounting pieces 24 are fixed to the frame on the vehicle body side by bolts, and the outer frame 22. And the storage part 3 are fixed.

  The inner frame 30 is formed in a horizontally long rectangular shape in plan view, and is provided at four locations near both ends thereof so as to be fixed to the outer frame 22 with bolts. As will be described later, the fuel tank X is directly attached and fixed to the inner frame 30.

  Next, the cover 40 will be described. As shown in FIG. 3, the cover 40 includes an upper cover 42, a front cover 44, and two side covers 47. The cover 40 is made of steel. The upper cover 42 is formed in substantially the same shape as the upper opening portion of the outer frame 22 so as to conceal the upper opening portion of the outer frame 22 of the mounting frame 20 described above, and has a hexagonal shape slightly close to a rectangular shape. Has been. As will be described later, a part of the fuel tank X installed below the upper cover 42 can be visually observed at a portion of the upper cover 42 located on the rear surface side of the mounting frame 20 when attached to the mounting frame 20. In addition, an inspection window 43 provided so that the valve of the fuel tank X can be operated is opened. Moreover, the lid | cover 49 which can conceal this viewing window 43 is attached so that attachment or detachment is possible. The upper cover 42 is configured to be able to be screwed at eleven places with respect to the outer frame 22 and is fixed to the mounting frame 20 side as described later.

  The front cover 44 is formed in a straight line so that the upper end is along the upper end on the front side of the outer frame 22. It is comprised from the tongue piece part 46 formed in the shape of the tongue piece projected toward the downward direction. Further, the side covers 47a and 47b are each formed in a substantially rectangular shape so as to have the same shape as the both side portions of the outer frame 22, and a fitting recess 48 into which the mounting piece 24 described above can be fitted is formed at the lower end portion. Thus, both sides of the outer frame 22 are formed so as to be capable of being covered. The upper cover 42, the front cover 44, and the side covers 47a and 47b are configured to be screwed to the outer frame 22, respectively.

  As described above, the mounting frame 20 and the cover 40 are sealed as follows in order to prevent gas from entering the cargo compartment 1 even if gas leaks from the stored fuel tank X. ing. The lower end 44a, 47a of each cover of the front cover 44 and the side cover 47 is caulked in the gap via a cushion material such as sponge with respect to the inner wall surface of the storage unit 3 when installed in the storage unit 3. Further, caulking is performed in the gap between the joint end portions of the front cover 44 and the side cover 47. Further, the joint end surfaces of the front cover 44 and the upper ends 44b and 47b of the side cover 47 and the mounting frame 20 are caulked. A packing is attached to the upper cover 42 at a portion corresponding to a joint portion between the upper cover 42 and the upper end surface of the mounting frame 20. In this way, even when gas leaks from the stored fuel tank X, the gas is prevented from entering the cargo compartment 1.

  Further, as shown in FIGS. 5 and 6, two vent holes 50 are opened on the bottom surface of the storage portion 3 located below the stored fuel tank X. Since LP gas is heavier than air, the leaked gas is discharged from the vent 50 even if the gas leaks into the sealed housing 3. In this example, the vent 50 is provided with a diameter of about 5 cm. A rubber cap 52 is detachably attached to the vent 50. By making such a cap 52 attachable, it is possible to prevent water from entering the storage unit 3 during rainy weather travel and the like, and to prevent rust and the like. On the other hand, the cap 52 is provided with a vent hole 53 near its center. By providing the vent hole 53, even if the cap 52 is attached to the vent hole 50, the leaked gas can be discharged out of the vehicle as described above, and water can enter the storage portion 3. In addition to preventing the gas, the gas can be discharged outside the vehicle at the same time. The vent hole has a diameter of 2 mm to 4 mm, preferably 2.5 mm to 3.5 mm. In this example, it is 3 mm. In this example, the drainage hole 54 has been opened on the lower surface of the storage unit 3 in advance, but a vent 50 is additionally provided.

  Next, a method for attaching the fixture 10 to the vehicle will be described. First, the front cover 44 and the two side covers 47 are attached in close contact with the outer frame 22 of the attachment frame 20, and these are integrally installed in the storage unit 3 of the vehicle. As shown in FIG. 7, first, the board 4 in the cargo compartment 1 of the vehicle is turned up to seal the periphery of the storage portion 3 at the top of the floor panel 2. Next, as shown in FIG. 8, the storage unit 3 having the outer frame 22 attached with the front cover 44 and the side cover 47 is installed. The mounting piece 24 of the outer frame 22 is fixed to the vehicle-side frame with bolts. In this example, the fuel tank X can be installed in the storage part 3, and it is not necessary to cut off the vehicle frame to secure the installation space for the fuel tank X. Therefore, it is necessary to reinforce the vehicle body to ensure its strength. There is no sex. Next, as shown in FIG. 9, the lower end 44 a of the front cover 44, the lower ends 47 a of the two side covers 47, and the lower end of the rear side of the outer frame 22 are caulked through a sponge so as to form a gap with the storage unit 3. Seal. Next, as shown in FIG. 1, the inner frame 30 in which the fuel tank X is bolted in advance at four positions is fixed to the outer frame 22. The fuel tank X is bolted to four locations near the center of the horizontally long inner frame 30 and is further bolted to the outer frame 22 in the vicinity of both ends of the inner frame 30. Then, the rubber packing 41 is attached along the upper end surface of the outer frame 22 in which the fuel tank X is stored so as to surround the inner side of the outer frame 22. The rubber packing 41 may be attached to the outer frame 22 in advance. Finally, as shown in FIG. 10, the upper cover 42 is attached to the upper end surface of the outer frame 22 via the rubber packing 41. The upper end surface of the outer frame 22 and the upper cover 42 are hermetically sealed over the entire periphery of the upper end surface of the outer frame 22 by the interposed rubber packing 41. Further, as described above, the observation window 43 is provided on the rear surface side of the upper cover 42. However, the rubber packing 41 is also attached to the opening periphery of the observation window 43, and when the aforementioned lid 49 is attached. The observation window 43 is sealed by the lid 49.

  In the fixture 10 configured as described above, each cover is sealed with respect to the storage portion 3, and even if gas leaks from the fuel tank X stored in the fixture 10, the cover 10 is entered into the cargo compartment 1. Gas intrusion is prevented. Further, when gas leaks into the fixture 10, gas heavier than air flows out from the vent 50 opened in the bottom surface of the storage portion 3, so that gas enters the cargo compartment 1. Is further prevented.

  Further, in order to ensure safety even when gas leaks from around the valve of the fuel tank X, a cover called “container” may be attached around the valve. In particular, when the fuel tank X is installed above the board 4 of the cargo compartment 1 or the like, there is a need to attach such a container when there is a risk that the leaked gas may enter the vehicle compartment. However, in the fixture 10 of the present invention, as described above, since the gas is prevented from entering the cargo compartment 1, there is no need to attach a container. Therefore, especially when the fuel tank X is installed in the storage part 3 where the space under the board 4 is limited, the size of the entire fuel tank X including accessories can be limited. It is possible to avoid the possibility that it will be difficult to install the fuel tank X, or in some cases, it will be impossible to install the fuel tank X in the storage unit 3. For this reason, for example, it is not necessary to cut off a part of the floor panel 2 for the fuel tank X that interferes with the mounting. In particular, the shape of the storage unit 3 varies depending on the vehicle type, and such a problem of difficulty in installation due to space limitations is likely to occur. On the other hand, the fuel tank X of this example is of a kind called “VOT”, and is a general-purpose type fuel tank having a capsule-like shape with a lateral length of 647 mm and a diameter of 300 mm. . The specifications of the gas fuel tank are regulated by domestic laws and regulations, and there are many restrictions on its shape. For this reason, there is a great need to use a general-purpose fuel tank, and the problem of difficulty in installation in the storage unit 3 tends to occur from the viewpoint of the tank shape. Such a compact configuration of the present invention has the effect of greatly improving the restrictions in the additional installation of the fuel tank X in terms of application to various vehicle types.

  The present invention is not limited to the above-described example, and appropriate modifications can be made within the scope of the gist of the present invention. For example, the gas fuel filled in the fuel tank may be a gas fuel other than LPG. Further, the shape of the mounting frame and the cover can be changed to various shapes corresponding to the shape of the storage portion. Other methods and means for sealing may be used. It is also possible to change the material of the mounting frame and cover.

  INDUSTRIAL APPLICABILITY The present invention can be widely used for a vehicle gas fuel tank fixture and a mounting structure for mounting various gas fuel tanks.

DESCRIPTION OF SYMBOLS 1; Cargo compartment, 2; Floor panel, 3; Storage part, 4; Board, 10; Attaching tool, 20: Mounting frame, 22; Outer frame, 24: Mounting piece, 30; Rubber packing, 42; upper cover, 43; viewing window, 44; front cover, 44a; lower end, 44b; upper end, 45; rectangular portion, 46; tongue piece, 47; 48; recess, 49; lid, 50; vent, 52; cap, 54; hole, X;

Claims (6)

An outer frame that is formed in the upper part of the floor panel under the cargo compartment of the vehicle and can be installed in a storage unit that can store a spare tire; and an outer frame that can be fixed to the vehicle-side frame;
An inner frame that can be fixed to the outer frame and that can fix the gas fuel tank;
A gas fuel tank fixture for a vehicle, comprising: a cover that covers the outside of the mounting frame so as to be hermetically sealed.   2. The vehicle gas fuel tank fixture according to claim 1, wherein the cover is sealed at a boundary with the floor panel.   The gas fuel tank mounting device for a vehicle according to claim 1 or 2, wherein an upper opening portion of the mounting frame and the cover are sealed by packing.   4. The vehicle gas fuel tank mounting device according to claim 1, wherein the cover is provided with a peep window that can be sealed by a lid.   A vehicle gas fuel tank according to any one of claims 1 to 4, further comprising a vent for opening in the floor panel. Mounting structure. A gas fuel tank mounting structure for a vehicle, wherein a cap capable of closing the vent and being detachable from the vent is provided, and the cap is provided with a vent hole.