JP6595169B2 - Tank fixing device - Google Patents

Description

  The present invention relates to a tank fixing device.

  For example, Patent Literature 1 discloses a technique for fixing a tank by fitting a recess formed in a fixing member and a protrusion formed in a tank.

JP 2009-220680 A

  When vibration, impact, or the like is applied to the tank, the load on the concave portion of the fixing member fitted to the protrusion of the tank increases, and the strength of the fixing member may be reduced.

  The present invention provides a tank fixing device that suppresses a load on a fixing member.

The object is to fix the tank to a tank including a tank main body, a base provided at an end of the tank main body, a valve connected to the base, and a support member that supports the tank. 1 and a second fixing member, wherein one of a convex portion and a concave portion is formed in the base portion or the valve, and the first and second fixing members sandwich one of the convex portion and the concave portion, Each of the first and second fixing members is formed with the other of the convex and concave portions that engage with one of the convex and concave portions, and one of the convex and concave portions and the first and second fixing members. A buffer member is provided between the convex portion and the other of the concave portion, and the buffer member includes one of the convex portion and the concave portion and the other of the convex portion and the concave portion of the first and second fixing members. of, it is interposed between the longitudinal direction of the tank, the tank affixing It can be achieved by location.

  ADVANTAGE OF THE INVENTION According to this invention, the tank fixing device which suppressed the load to a fixing member can be provided.

1 is an external view of a tank employed in a tank fixing device according to Embodiment 1. FIG. It is the figure which looked at the tank in the state fixed to the platform from the longitudinal direction. It is a perspective view of a fixed bracket. It is explanatory drawing of engagement with a fixing bracket and a nozzle | cap | die part. FIG. 6 is a schematic diagram showing a part of the fixing device of Example 2. FIG. 6 is a schematic diagram illustrating a part of a fixing device according to a third embodiment. FIG. 6 is a schematic diagram illustrating a part of a fixing device according to a fourth embodiment. FIG. 10 is a schematic diagram illustrating a part of a fixing device according to a fifth embodiment. FIG. 10 is a schematic view showing a part of a fixing device of Example 6. FIG. 10 is a schematic view showing a part of a fixing device of Example 7. 10 is a schematic view showing a part of a fixing device of Example 8. FIG. 10 is a schematic diagram showing a part of a fixing device of Example 9. FIG.

  Hereinafter, embodiments of the present invention will be described based on examples.

  FIG. 1 is an external view of a tank 1 employed in a tank fixing device (hereinafter referred to as a fixing device) according to a first embodiment. The tank 1 stores hydrogen gas at a high pressure. The hydrogen gas stored in the tank 1 is supplied to a fuel cell (not shown) mounted on the vehicle. The tank 1 is made of a resin column, but is not limited thereto, and may be made of metal. The tank 1 includes a tank body 10, a base portion 20, and a valve 30. The tank body 10 extends in a predetermined direction. A base part 20 is connected to the front end side of the tank body 10 in the longitudinal direction. The base part 20 is a cylindrical member inserted into an opening formed on the front end side of the tank main body 10, and the front end part of the base part 20 is exposed from the tank main body 10. A valve 30 is inserted into the base part 20.

  FIG. 2 is a view seen from the longitudinal direction of the tank 1 in a state of being fixed to the platform F. FIG. The platform F is provided in the vehicle, and a concave portion R for storing a tank is formed on the lower surface of the platform F. The tank 1 is fixed to the platform by fixing brackets 40 and 50. The fixing brackets 40 and 50 are made of metal, but are not limited thereto. For example, the fixing brackets 40 and 50 may be made of synthetic resin. The fixing brackets 40 and 50 are both fixed to the platform F by bolts and nuts. The fixing brackets 40 and 50 sandwich the base portion 20 as will be described in detail later. The fixing brackets 40 and 50 are examples of fixing members. The platform F is an example of a support member. The tank body 10 is suspended from the lower surface of the platform F by a band (not shown).

  FIG. 3 is a perspective view of the fixing brackets 40 and 50. The fixing bracket 40 presses the base part 20 from above, and the fixing bracket 50 presses the base part 20 from below. The fixed bracket 40 includes a base end portion 42 fixed to the platform F, a curved portion 41 extending from the base end portion 42 and curved along the outer periphery of the base portion 20, and extending from the curved portion 41 and away from the tank 1 to the platform F. A distal end portion 43 fixed to. Similarly, the fixing bracket 50 includes a proximal end portion 52, a bending portion 51, and a distal end portion 53. The platform F includes a recess R and flat portions H2 and H3 extending in the horizontal direction with the recess R interposed therebetween. The base end portions 42 and 52 are provided with a plurality of holes h through which the bolts penetrate in common. With the base end portions 42 and 52 overlapped, the fixing brackets 40 and 50 are fixed to the flat surface portion H2 of the platform F with bolts and nuts. Similarly, the tip portions 43 and 53 are provided with a plurality of holes h through which the bolts penetrate in common. The fixing brackets 40 and 50 are fixed to the flat surface portion H3 of the platform F with bolts and nuts in a state where the distal end portions 43 and 53 are overlapped. Concave portions 45 and 55 are formed on the inner side surfaces of the curved portions 41 and 51, respectively.

  FIG. 4 is an explanatory view of the engagement between the fixing brackets 40 and 50 and the base portion 20. In FIG. 4, the fixing brackets 40 and 50 are shown in cross section. In addition, rubber members G1 and G2 disposed between a convex portion 25 and a concave portion 45 of the base portion 20 and a convex portion 25 and a concave portion 55, which will be described later, are also shown in cross section. As shown in FIG. 4, a convex portion 25 extending in the circumferential direction is formed on the outer periphery of the base portion 20. The convex portion 25 corresponds to the shape of the concave portions 45 and 55. The convex part 25 and the concave part 45 are engaged via the rubber member G1. The convex part 25 and the concave part 55 are engaged via the rubber member G2. As described above, the convex portion 25 and the concave portions 45 and 55 are engaged with each other, thereby suppressing the displacement of the tank 1 in the longitudinal direction with respect to the platform F.

  Even when an impact or vibration is applied to the tank 1, the rubber members G1 and G2 are interposed between the convex portions 25 and the concave portions 45 and between the convex portions 25 and the concave portions 55, respectively. The members G1 and G2 can be elastically deformed to absorb an impact or the like. Thereby, the load to the fixing brackets 40 and 50 can be suppressed, and the fall of intensity | strength can be suppressed. The rubber members G1 and G2 are elastic bodies and are examples of buffer members. The rubber member G1 is interposed between the inner side surface and the inner bottom surface of both sides of the concave portion 45 facing each other, and between the both side surfaces and the top surface of the convex portion 25. The same applies to the rubber member G2.

  The rubber member G1 has a thin plate shape extending in one direction before being sandwiched between the convex portion 25 and the concave portion 45. As shown in FIG. 4, the rubber member G <b> 1 is elastically deformed by being sandwiched between the convex portions 25 and the concave portions 45, and is deformed so as to correspond to the shapes of the convex portions 25 and the concave portions 45. The same applies to the rubber member G2, the convex portion 25, and the concave portion 55. The shape of the rubber members G1 and G2 is not limited to this, and may be a shape in which a concave groove is formed on one surface so as to correspond to the convex portion 25, for example.

  FIG. 5 is a schematic diagram illustrating a part of the fixing device according to the second embodiment. FIG. 5 corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same structure as the Example mentioned above, and the description is abbreviate | omitted. The base portion 20a has protrusions 23a and 24a extending in the circumferential direction. The protrusions 23a and 24a are provided at intervals in the longitudinal direction, and a recess 25a is formed between the protrusions 23a and 24a. A convex portion 45a projecting inward is formed on the curved portion 41 of the fixed bracket 40a. A convex portion 55a is similarly formed on the curved portion 51 of the fixed bracket 50a. The concave portion 25a corresponds to the shape of the convex portions 45a and 55a. The concave portion 25a is engaged with the convex portions 45a and 55a via rubber members G1 and G2, respectively. As a result, the displacement of the tank in the longitudinal direction can be suppressed and fixed, and the load on the fixing brackets 40a and 50a can also be suppressed.

  FIG. 6 is a schematic diagram illustrating a part of the fixing device according to the third embodiment. FIG. 6 corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same structure as the Example mentioned above, and the description is abbreviate | omitted. The base portion 20b has a cylindrical shape, and a ring-shaped ring member 60 formed separately from the base portion 20b is fixed to the outer periphery of the base portion 20b. A recess 65 extending in the circumferential direction is formed on the outer periphery of the ring member 60. The concave portion 65 corresponds to the shape of the convex portions 45a and 55a. The concave portion 65 is engaged with the convex portions 45a and 55a via rubber members G1 and G2, respectively. As a result, the displacement of the tank in the longitudinal direction can be suppressed and fixed, and the load on the fixing brackets 40a and 50a can also be suppressed.

  FIG. 7 is a schematic diagram illustrating a part of the fixing device according to the fourth embodiment. FIG. 7 corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same structure as the Example mentioned above, and the description is abbreviate | omitted. A ring-shaped ring member 60a formed separately from the base part 20b is fixed to the outer periphery of the base part 20b. The outer periphery of the ring member 60a functions as a convex portion 65a. The convex portion 65 a corresponds to the shape of the concave portions 45 and 55. The convex portion 65a is engaged with the concave portions 45 and 55 via rubber members G1 and G2, respectively. Thereby, the position shift of the longitudinal direction of a tank can be suppressed and it can fix, and the load to the fixing brackets 40 and 50 can also be suppressed.

  FIG. 8 is a schematic diagram illustrating a part of the fixing device according to the fifth embodiment. FIG. 8 corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same structure as the Example mentioned above, and the description is abbreviate | omitted. The fixing brackets 40b and 50b are engaged with the valve 30a without being engaged with the base portion 20b. Specifically, the concave portions 45b and 55b formed in the curved portion 41b of the fixed bracket 40b and the curved portion 51b of the fixed bracket 50b are engaged with the convex portion 35a formed on the outer periphery of the head of the valve 30a. Yes. The convex portion 35a corresponds to the shape of the concave portions 45b and 55b. The convex portion 35a is engaged with the concave portions 45b and 55b via rubber members G1 and G2, respectively. As a result, the displacement of the tank in the longitudinal direction can be suppressed and fixed, and the load on the fixing brackets 40b and 50b can also be suppressed.

  FIG. 9 is a schematic diagram illustrating a part of the fixing device according to the sixth embodiment. FIG. 9 corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same structure as the Example mentioned above, and the description is abbreviate | omitted. A concave portion 35b extending in the circumferential direction is formed on the outer periphery of the valve 30b. Convex portions 45c and 55c are formed on the inside of the curved portion 41c of the fixed bracket 40c and the curved portion 51c of the fixed bracket 50c, respectively. The concave portion 35b corresponds to the shape of the convex portions 45c and 55c. The concave portion 35b is engaged with the convex portions 45c and 55c via rubber members G1 and G2, respectively. As a result, the displacement of the tank in the longitudinal direction can be suppressed and fixed, and the load on the fixing brackets 40c and 50c can also be suppressed.

  FIG. 10 is a schematic diagram illustrating a part of the fixing device according to the seventh embodiment. FIG. 10 corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same structure as the Example mentioned above, and the description is abbreviate | omitted. Between the convex part 25 and the concave part 45, two rubber members G1a and G1b are interposed. Specifically, a rubber member G1a is interposed between one inner surface of the recess 45 and one outer surface of the projection 25, and the other inner surface of the recess 45 and the other outer surface of the projection 25 are A rubber member G1b is interposed therebetween. Similarly, a rubber member G2a is interposed between one inner side surface of the concave portion 55 and one outer side surface of the convex portion 25, and between the other inner side surface of the concave portion 55 and the other outer surface of the convex portion 25. A rubber member G2b is interposed. Note that no rubber is interposed between the inner bottom surfaces of the concave portions 45 and 55 and the outer peripheral surface of the convex portion 25. Thereby, the position shift of the tank in the longitudinal direction can be suppressed, and the load on the fixing brackets 40 and 50 can also be suppressed. Further, the tank body 10 is fixed to the upper surface of the platform F ′ by a metal band B, whereby the radial displacement of the tank body 10 is suppressed and fixed. In FIG. 10, the platform F ′ is schematically shown. The fixing brackets 40 and 50 are also fixed to the upper surface of the platform F ′.

  FIG. 11 is a schematic diagram illustrating a part of the fixing device according to the eighth embodiment. FIG. 11 corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same structure as the Example mentioned above, and the description is abbreviate | omitted. Each of the fixing brackets 40d and 50d has a thin plate shape and is curved to form convex portions 45d and 55d. A shallow concave portion 25c extends in the circumferential direction on the outer peripheral surface of the base portion 20c. The concave portion 25c corresponds to the shape of the convex portions 45d and 55d. The concave portion 25c is engaged with the convex portions 45d and 55d via rubber members G1 and G2, respectively. As a result, the displacement of the tank in the longitudinal direction can be suppressed and fixed, and the load on the fixing brackets 40d and 50d can also be suppressed.

  FIG. 12 is a schematic diagram illustrating a part of the fixing device according to the ninth embodiment. FIG. 12 corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same structure as the Example mentioned above, and the description is abbreviate | omitted. In this embodiment, an example in which a valve is not provided is shown. Further, the base portion 20d is formed with a concave portion 25d extending in the circumferential direction. The concave portion 25d is engaged with the convex portions 45a and 55a via rubber members G1 and G2, respectively. As a result, the displacement of the tank in the longitudinal direction can be suppressed and fixed, and the load on the fixing brackets 40a and 50a can also be suppressed.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to such specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. It can be changed.

  The tank is not limited to resin, and may be made of metal, for example. The tank is not limited to a cylindrical shape, and may be other shapes such as a prismatic shape and a spherical shape. The tank is not limited to storing hydrogen gas, and may be a fuel gas such as LP gas, a liquid fuel, or a gas or liquid other than fuel. The tank fixing device is not limited to use for a tank mounted on a vehicle. The tank fixing device can be used for a tank mounted on a moving body other than a vehicle, and can also be used for a stationary tank regardless of whether it is outdoors or indoors. This is because a stationary tank may receive vibration from the ground, for example. Although it is fixed to the platform F by fixing bracket bolts and nuts, it may be fixed by welding. Moreover, the fixed bracket engaged with the base part of the tank or the bolt may be fixed to another bracket fixed to the platform by a bolt and a nut or welding. A tank may be fixed to the upper surface side of the platform. In this case, there may be no band for fixing the tank body to the platform.

10 Tank body 20 Base part 25 Convex part 30 Valve 40, 50 Fixing bracket (fixing member)
45, 55 Concavity F Platform (support member)
G1, G2 Rubber member (buffer member)

Claims (1)

A tank including a tank body, a base provided at an end of the tank body, and a valve connected to the base;
First and second fixing members for fixing the tank to a support member for supporting the tank,
The base part or the valve is formed with one of a convex part and a concave part,
The first and second fixing members sandwich one of the convex portion and the concave portion,
Each of the first and second fixing members is formed with the other of the convex portion and the concave portion that engages with one of the convex portion and the concave portion,
A buffer member is provided between one of the convex portion and the concave portion and the other of the convex portion and the concave portion of the first and second fixing members ,
The said buffer member is a tank fixing device which is interposed between the one of the said convex part and a recessed part, and the other of the said convex part and recessed part of the said 1st and 2nd fixing member between the longitudinal directions of the said tank .

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