Tank

Abstract

A tank is provided in which an inlet (132) for introducing a liquid from the outside into a tank chamber (230) in which the liquid is stored is provided on one side of a vehicle, a communication path (231) extending from the inlet (132) towards the other side of the vehicle, and a communication opening (232) capable of establishing communication between the communication path (231) and the tank chamber (230) are formed. A surface section (222), the height of which increases from one side of the vehicle to the communication opening (232) on the other side of the vehicle, is formed on an upper section of the tank chamber (230) when the tank chamber is installed in the vehicle.

Description

Technical field

[0001] The present invention relates to a tank intended for a vehicle for storing a liquid.

[0002] Priority is claimed from Japanese patent application No. 2013-228333, filed on November 1, 2013, the contents of which are incorporated herein by reference. background

[0003] A tank is known which is intended for a vehicle for the storage of a liquid (see, for example, patent literature 1). List of citations from patent literature

[0004] Patent Literature 1: Japanese Unexamined Patent Application, First Publication Number H09-86389 Summary of the invention: Technical problem

[0005] There is a need for a tank that allows for the satisfactory introduction of a liquid during maintenance work.

[0006] The present invention provides a tank that enables the satisfactory introduction of a liquid. Solution to the problem

[0007] According to a first aspect of the present invention, a tank is constructed such that an inlet for introducing or injecting a liquid from the outside into a tank chamber in which the liquid is stored is provided on one side of a vehicle; a communication path is provided, extending from the inlet towards the other side of the vehicle; and a communication opening is provided, enabling communication between the communication path and the tank chamber. A surface section, constructed such that its height increases from one side of the vehicle to the communication opening on the other side of the vehicle when the tank chamber is installed or mounted in the vehicle, is formed on an upper section of the tank chamber.

[0008] According to a second aspect of the present invention, a roof part is formed on the upper section of the tank chamber, wherein the surface part is formed in a position that is recessed downwards relative to the roof part.

[0009] According to a third aspect of the present invention, the tank further comprises: an upper structure on which the inlet is provided; and a lower structure on which the tank chamber is provided. The upper and lower structures are joined to form a tank body. The surface portion is formed on the upper structure.

[0010] According to a fourth aspect of the present invention, the communication opening is configured on a rear side of the tank chamber in a forward / reverse direction of the vehicle. The surface area is inclined such that the height increases from a front to a rear side in the forward / reverse direction of the vehicle.

[0011] According to a fifth aspect of the present invention, an indicator line indicating the highest liquid level is formed in the tank at an upper position in a vertical direction relative to the surface area. Advantageous effects of the invention

[0012] The liquid can be introduced perfectly according to the tank described above. Brief description of the drawings

[0013] Fig. Figure 1 is a side view showing a tank and a main cylinder according to a first embodiment.

[0014] Fig. Figure 2 is a side view of a cross-section of a section representing the tank and the main cylinder, with the exception of a cap, according to the first embodiment.

[0015] Fig. Figure 3 is a top view showing a tank body of the tank according to the first embodiment.

[0016] Fig. 4 is a sectional view of cross-section AA of the Fig. 3.

[0017] Fig. Figure 5 is a sectional view of cross-section BB of the Fig. 3.

[0018] Fig. 6 is a sectional view of cross-section CC of the Fig. 3.

[0019] Fig. Figure 7 is a top view showing a lower structure of the tank according to the first embodiment.

[0020] Fig. Figure 8 is a view from below, showing an upper structure of the tank according to the first embodiment.

[0021] Fig. Figure 9 is a sectional view, equivalent to the cross-section CC of the Fig. 3, of a tank according to a second embodiment.

[0022] Fig. Figure 10 is a top view showing a tank body of the tank according to the second embodiment.

[0023] Fig. 11 is a sectional view of the cross-section DD of the Fig. 10. Description of embodiments [First embodiment]

[0024] A tank according to a first embodiment is described based on the drawings. The tank 11 The present embodiment is attached to a vehicle, such as a four-wheeled vehicle. As described in Fig. As shown in 1, the tank 11 on a master cylinder 12 attached and mounted in a vehicle. One in Fig. The position shown here is a position in a state where the tank 11 and the main cylinder 12 are mounted in the vehicle. The tank 11 and the main cylinder 12 are installed in the vehicle in such a way that the left side in Fig. 1 becomes the front when the vehicle is moving forward. The terms "front", "back", "left" and "right" in the following description correspond to front, back, left and right when the vehicle is moving forward.

[0025] The main cylinder 12 A master brake cylinder is part of a braking system that applies the brakes to the wheels. A fluid is stored in the reservoir. 11 stored or kept. The tank 11 the fluid leads to the main cylinder 12 to. The main cylinder 12 It generates brake fluid pressure, which is introduced into the wheel cylinders (not shown) that are provided for the wheels to produce a braking force in response to the application of the brakes by a driver or the like. The master cylinder 12In the present embodiment, although not shown, a tandem-type master cylinder has two fluid pressure chambers, one at the rear and one at the front, to enable the generation of brake fluid pressure at brake lines of two systems.

[0026] The main cylinder 12 It is mounted on the side of a vehicle body, in a position where the body is tilted slightly upwards towards the front relative to the horizontal. The master cylinder 12 comes with an attachment part 14 on an upper front side of the same and an attachment part 15 formed on an upper rear side of the same. These mounting parts 14 and 15 Each has upper surfaces that are flush with each other and are inclined slightly upwards towards the front with respect to the horizontal. As shown in Fig. The part shown in section 2 is the attachment part. 14 with an attachment opening 16formed at right angles to one of its upper surfaces. The mounting attachment part. 15 It also has an attachment opening. 17 formed at right angles to one of its upper surfaces. The tank 11 is possible by means of these mounting openings 16 and 17 attached. In this assembled state, the interior of the tank communicates. 11 with each of the fluid pressure chambers in the main cylinder 12 .

[0027] The tank 11 has a tank body 18 on, which is made from a specific synthetic resin that is optically transparent and in the Fig. 1 to Fig. 6 is shown, and a cap 19 , which are attached to the tank body 18 It is detachably attached, is made of a synthetic resin and is in Fig. 1 shown. The tank body 18 is constructed by an upper structure 20, which is an integrally formed product, and a lower structure 21 , which is an integrally formed product, are joined together, for example by welding, thereby forming a body.

[0028] As it is in Fig. As shown in section 4, the lower structure 21 an intermediate floor section 23 , a front lower protrusion 24 , which is from a front section of the intermediate floor part 23 protrudes downwards, and has a rear lower projection. 25 up, which is from a rear section of the intermediate floor part 23 protrudes downwards. The lower structure 21 It also has a side wall 26 , which, as it says in Fig. As shown in Figure 1, it is derived from a boundary section of a left side, which is one side of the intermediate floor section. 23 in a left / right direction, essentially extending upwards, and a side wall 27up, which, as it is in Fig. As shown in section 4, it is derived from a boundary section of a right side, which is a side of the intermediate floor section. 23 It is opposite in the left / right direction and extends upwards. Furthermore, the lower structure shows 21 a rear end wall 28 one rear end of the same, an intermediate front wall 29 of a front section of the same, a front bottom part 30 of the front section of the same, a sloping wall 31 of the front section of the same, a front end wall 32 of a front end of the same, a connected flange part 33 of the upper end of the same, a reinforcing plate part 34 a lower section of the same, a coupling plate part 35 , who in Fig. 1 is shown, and a coupling plate part 36 up, which in Fig. 4 is shown. The lower structure 21is mounted in a position in the vehicle where the rear end wall 28 and the front end wall 32 stand perpendicular to the forward / reverse direction of the vehicle.

[0029] As it is in Fig. As shown in section 2, the front lower projection part has 24 a front arrangement base section 38 on, which is attached to an upper surface of the mounting part 14 on the front of the main cylinder 12 is arranged. The rear lower protrusion part. 25 features a rear arrangement base section 39 on, which is attached to an upper surface of the mounting part 15 on the back of the main cylinder 12 is arranged.

[0030] Since these front and rear arrangement floor parts 38 and 39 on the upper surfaces of the mounting part 14 and 15The provided components are arranged on the same plane on correspondingly deeper surfaces thereof, and these deeper surfaces are arranged on the same plane and are inclined slightly upwards in the forward direction with respect to the horizontal. A mounting projection part 42 , which relates to the front arrangement base part 38 protrudes vertically downwards and is located in an intermediate position of the front assembly base part. 38 trained. A mounting protrusion part 43 , which relates to the rear arrangement floor part 39 protrudes vertically downwards, and is also located in an intermediate position of the rear assembly base part. 39 trained.

[0031] A communication opening 44 , which are between the inside and outside of the tank body 18 It runs in the middle of the mounting projection part. 42 trained. A communication opening 45, which are between the inside and outside of the tank body 18 The path also runs through the middle of the mounting projection part. 43 trained. The tank body 18 is possible by means of the aforementioned mounting openings 16 and 17 the mounting parts 14 and 15 of the main cylinder 12 on the mounting protrusion part 42 and 43 attached. The fluid pressure chambers of the main cylinder 12 can be accessed via the mounting openings 16 and 17 these mounting parts 14 and 15 communicate.

[0032] As it is in Fig. As shown in Figure 4, the front lower projection part has 24 a front wall section 50 , which extends from a front edge section of the front arrangement base part 38 extends upwards, a rear wall section 51 , which extends from a rear edge section of the front arrangement base part38 extends upwards, and a side wall section 52 on, which extends from a right edge section of the front arrangement base part 38 extending upwards. A lower section of the side wall shown above. 26 is, as it is in Fig. 1 is shown, with a left edge section of the front arrangement base part. 38 connected. In other words, as it says in Fig. As shown in section 7, an area separated from the front wall section. 50 , the rear wall section 51 , the side wall part 52 and the side wall 26 is surrounded, towards the front arrangement base part 38 , and the mounting projection part 42 is trained within this field.

[0033] The rear lower protrusion 25 indicates: a front wall section 55 , which extends from a front edge section of the rear arrangement base part 39extends upwards, as it is in Fig. As shown in section 4, a rear wall section 56 , which extends from a rear edge section of the rear arrangement base part 39 extends upwards, a side wall section 57 , which extends from a left edge section of the rear arrangement base part 39 extends upwards, as it is in Fig. 1 is shown, and a side wall section 58 , which extends from a right edge section of the rear arrangement base part 39 extends upwards, as it is in Fig. 4 is shown. In other words, as shown in Fig. As shown in section 7, an area separated from the front wall section. 55 , the rear wall section 56 , the side wall part 57 and the side wall section 58 is surrounded, towards the rear arrangement floor section 39 , and the mounting projection part 43 is trained within this field. As it is in Fig. Figure 1 shows a lower surface of a section between the front and rear lower projection parts. 24 and 25 of the intermediate floor section 23 with a switch mounting part 61 trained, on which a level indicator switch 60 appropriate.

[0034] The side wall 26 has a rear wall section 65 , a rear sloping wall section 66 , a partition wall section 67 , a front sloping wall section 68 , a front wall section 69 and a front end wall section 70 up. The rear wall section 65 extends from a left end edge section of the rear end wall 28 vertically forwards / backwards. As it says in Fig. As shown in Figure 7, the rear sloping wall section extends 66 from a front edge section of the rear wall part 65angled towards the front, so that it is positioned on a right-hand side, that is, an inside side in the left / right direction. The partition wall section 67 extends from a front edge section of the rear sloping wall section 66 forwards parallel to the rear wall section 65 The front sloping wall section 68 extends from a front edge section of the partition wall part 67 angled towards the front, so that it can be positioned on the inside in a left / right direction. The front wall section. 69 extends from a front edge section of the front sloping wall part 68 forwards parallel to the partition wall section 67 As it is in Fig. As shown in 1, the front end wall section extends 70 from an upper end section of the front wall part 69 forwards, to be flush with this upper end section. A lower section of the partition wall part. 67and a lower section of the front sloping wall part 68 form the front lower protrusion part 24 An indicator line of the lowest liquid level 71 , which indicates the lowest liquid level, is located on an outer surface of the front sloping wall section. 68 Designed horizontally to project outwards. An indicator part. 72 The letter "MIN", which indicates that a liquid level is the lowest liquid level, is above this indicator line of the lowest liquid level. 71 trained to represent the public.

[0035] As it is in Fig. As shown in section 4, the side wall 27 a rear wall section 75 , a laterally extended wall section 76 , a partition wall section 77 and a slanted section of wall 78 up. The rear wall section 75extends from a right end edge section of the rear end wall 28 vertically forwards / backwards. The laterally extended wall section. 76 extends from a front edge section of the rear wall part 75 , which is located on a lower section of the rear wall part 75 up to an intermediate section of the rear wall part 75 in an up / down direction, to the right side, that is, the outside in the left / right direction. The partition wall part 77 extends from an extended leading end edge section of the laterally extended wall section 76 parallel to the rear wall section 75 The slanted part of the wall 78 extends from a front edge section of the partition wall part 77 Towards the front, to be positioned on the left side, that is, the inside in the left / right direction. An indicator line of the lowest liquid level.79 , which marks the lowest liquid level, is horizontal on an outer surface of the partition wall part 77 trained to represent the public. An indicator part. 80 The letters "MIN", indicating that a fluid level is the lowest fluid level, are on the reverse side of this lowest fluid level indicator line. 79 trained to represent the public.

[0036] As it is in Fig. As shown in 7, the side wall 27 including a rear sloping wall section 81 , a partition wall section 82 , a front sloping wall section 38 , a front wall section 84 and a projecting base section 85 as it is in Fig. 4 is shown. The rear sloping wall section. 81 extends from a front end edge section of an upper end section of the rear wall part 75angled towards the front, so that it is positioned on the right side, that is, the outside in the left / right direction. The partition wall section 82 , represented in Fig. 7, extends from a front end edge section of the rear sloping wall part 81 forwards parallel to the rear wall section 75 The front sloping wall section 83 extends from a front edge section of the partition wall part 82 diagonally to the front, to be positioned on the left side, that is, the inside in the left / right direction. The front wall section 84 extends from a front edge section of the front sloping wall part 83 forwards parallel to the partition wall section 82 The projecting base section 85 , who in Fig. As shown in section 4, it extends from an upper edge section of the partition wall part. 77horizontally to the right, to the lower end edge sections of the rear sloping wall part 81 , the partition wall section 82 and the front sloping wall section 83 , which in Fig. 7 are shown, to connect.

[0037] As it is in Fig. As shown in section 4, the intermediate front wall extends 29 from a front edge section of the intermediate floor section 23 upwards parallel to the rear end wall 28 The intermediate front wall 29 extends in the left / right direction to form a front edge section of the front wall part 69 the side wall 26 , represented in Fig. 1, and a front edge section of the sloping wall part 78 the side wall 27 , represented in Fig. 7, to connect them.

[0038] The front floor section 30 extends from an upper edge section of the intermediate front wall 29horizontally forwards. The front part of the floor. 30 extends in the left / right direction to form a front floor section of the front end wall part 70 the side wall 26 , represented in Fig. 1, and a front floor section of the front wall part 84 the side wall 27 , represented in Fig. 4, to connect them together.

[0039] The slanted wall 31 extends from a front edge section of the front bottom part 30 , in order to be inclined upwards in this respect. The sloping wall 31 extends in the left / right direction to form a front section of the end wall part 70 the side wall 26 , represented in Fig. 1, and a front section of the front wall part 84 the side wall 27 , represented in Fig. 4, to connect them together.

[0040] The front end wall 32extends from a front edge section of the sloping wall 31 vertically upwards. The front end wall 32 extends in the left / right direction to form a front end edge section of the front end wall part 70 the side wall 26 , represented in Fig. 1, and a front edge section of the front wall part 84 the side wall 27 , represented in Fig. 4, to connect them together.

[0041] As it is in Fig. As shown in 7, the connected flange part is 33 of total circumferences of continuous upper edge sections of the side wall 26 , the side wall 27 , the rear end wall 28 and the front end wall 32 It extends horizontally outwards and is arranged within the same horizontal plane.

[0042] The reinforcement plate part 34 , represented in Fig. 1, is located at intermediate positions of the intermediate front wall 29 and the front floor section 30 The reinforcement plate section is designed vertically in the left / right direction to connect them. A front surface of the reinforcement plate section. 34 In this respect, it is inclined upwards at the front, at approximately the same angle as the sloping wall. 31 .

[0043] The coupling plate part 35 is designed to protect the front lower protrusion area 24 and the rear lower protrusion 25 to connect in a position where it follows the forward / reverse direction. This coupling plate part 35 is equipped with an insertion opening 91 trained, into which a pin 90 for mounting on the main cylinder 12 has been introduced. The opening of communication 36 , represented in Fig. 4 is parallel to the coupling plate part 35 Arranged in the left / right direction. The coupling plate part.36 connects the front lower protrusion part 24 and the rear lower protrusion 25 The coupling plate part 36 is equipped with an insertion opening 92 formed, comparable to that of the coupling plate part 36 is.

[0044] As it is in Fig. Figure 7 shows a floating guide wall. 95 , an interior wall 96 , an interior wall 97 , a partition wall 100 , a rib 101 , an extended wall 102 , a transitional training wall 103 , a transitional training wall 104 and a projecting wall 105 in the lower structure 21 trained.

[0045] The swimming guide wall 95 It has an approximately cylindrical shape in a vertical direction. The floating guide wall 95is designed to position itself between the front and rear lower protrusions 24 and 25 of the intermediate floor section 23 to be positioned in a protruding manner. A floating magnet 107 , represented in Fig. 2, for checking an insufficient amount of liquid inside, is liftable into this floating guide wall 95 introduced. The level indicator switch 60 , which is attached to the switch mounting part 61 It is intended to detect that the floating magnet 107 approximates, and thus a quantity of liquid is equal to or less than a certain value. As described in Fig. The float guide wall shown in figure 7 is 95 with a cut-out part 108 formed, which leads to an inner surface of the rear wall part 75 the side wall 27 is directed.

[0046] The interior wall 96 has a side wall section 110, which leads to an inner surface of the side wall part 57 of the rear lower protrusion 25 flush and designed to protrude from the intermediate floor section 23 to be located, and a connecting wall section 111 on, which is designed to attach itself in a protruding manner to the intermediate floor section 23 to locate the floating guide wall 95 and an end edge section of the side wall part 110 , which of the rear end wall 28 opposite each other, to connect the side wall section. 110 lies parallel to the rear wall section 65 the side wall 66 and is in a direction perpendicular to the rear end wall 28 arranged. The side wall section 110is designed such that a rear end of the same is arranged at a distance from the rear end wall in the forward / backward direction, and a front end of the same extends to the front relative to an inner surface of the front wall part 55 of the rear lower protrusion 25 The connecting wall section 111 lies parallel to an inner surface of the rear end wall 28 and the front wall section 55 of the rear lower protrusion 25 .

[0047] The interior wall 97 has a side wall section 112 , which leads to an inner surface of the side wall part 58 of the rear lower protrusion 25 flush and designed to protrude from the intermediate floor section 23 to be located, and a connecting wall section 113 on, which is designed to attach itself in a protruding manner to the intermediate floor section 23to locate the floating guide wall 95 and an end edge section of the side wall part 112 , which of the rear end wall 28 to be connected opposite each other. The side wall section 112 lies parallel to the rear wall section 75 the side wall 27 and is in a direction perpendicular to the rear end wall 28 arranged. The side wall section 112 is from the rear end wall 28 spaced apart in the forward / rear direction and extends to an opposite side, which is the rear end wall 28 is facing, relative to the inner surface of the front wall section 55 of the rear lower protrusion 25 The connecting wall section 113 lies parallel to the inner surface of the rear end wall 28 and the front wall section 55 of the rear lower protrusion 25 .

[0048] The partition wall 100is designed to attach itself to the intermediate floor section in a protruding manner 23 to locate the floating guide wall 95 and an end edge section of the same opposite the rear end wall 28 of the rear wall section 75 the side wall 27 to connect the partition wall 100 is on one front side of the connecting wall section 113 arranged and lies parallel to the connecting wall section 113 The excerpt shown above 108 the swimming guide wall 95 is between the partition wall 100 and the connecting wall section 113 arranged. The rib 101 connects the rear wall section 65 the side wall 26 and the swimming guide wall 95 , to separate from the intermediate floor section 23 to extend vertically upwards. The rib 101 is on the same level as the partition wall 100 arranged.

[0049] The extended wall 102 is designed to attach itself to the intermediate floor section in a protruding manner 23 and the front arrangement base section 38 of the front lower protrusion 24 to be located in order to move from a position on a forward section of the floating guide wall 95 to extend forward, with this position towards the side wall 26 is directed, and it is furthermore connected to the rear wall section 51 of the front lower protrusion 24 connected. The extended wall 102 is made from a base end wall part 115 , which is separated from the swimming guide wall 95 extends to run parallel to the partition wall section 67 the side wall 26 to lie, and a leading end wall part 116 constructed from an opposite side of the base end wall section 115 extends which of the swimming guide wall 95opposite, parallel to the front sloping wall section 68 the side wall 26 to lie down. The leading end wall section 116 is from the front wall section 50 of the front lower protrusion 24 spaced apart in the forward / reverse direction.

[0050] The transitional training wall 103 is designed to attach itself to the intermediate floor section in a protruding manner 23 on one front side of the lower front projection 24 and on one side of the side wall 27 to be located. The passage training wall 103 has a base end wall section 118 , a slanted partition wall section 119 and a leading end wall section 120 up. The base end wall part 118 extends from the front wall section 69 the side wall 26 , to reach an inner surface of the front wall section 50 of the front lower protrusion 24to be flush. The angled partition wall section 119 extends from a terminal edge section of the base end wall part 118 , opposite the side wall 26 lies parallel to the front sloping wall section 83 the side wall 27 to lie down. The leading end wall section 120 extends from an end edge section of the sloping partition wall part 119 , which is the base end wall part 118 opposite, to form an inner surface of the side wall part 52 of the front lower protrusion section 24 to be concise.

[0051] The leading end wall part 120 is from the partition wall 100 spaced apart in the forward / reverse direction.

[0052] The transitional training wall 104 is designed to attach itself in a protruding manner to the front part of the base 30 and the projecting base section 85 on one front side of the passage training wall 103and on the side of the side wall 27 to be located. The passage training wall 104 has a base end wall section 123 , a slanted partition wall section 124 and a leading end wall section 125 up. The base end wall part 123 extends from an end section that leads to the front end wall part 70 of the front wall section 69 the side wall 26 is directed towards an inner surface of the intermediate front wall 29 to be flush. The angled partition wall section 124 extends from a terminal edge section of the base end wall part 123 , which of the side wall 26 opposite, parallel to the front sloping wall section 83 the side wall 27 to lie down.

[0053] The leading end wall part 125 extends from an end edge section of the sloping partition wall part 124 , which is the base end wall part 123opposite, in order to form an inner surface of the partition wall section 77 the side wall 27 to be flush. An end section of the leading end wall part. 120 , which leads to the rear end wall 28 It is directed closer to the rear end wall. 28 as an end section of the leading end wall part 125 , which leads to the rear end wall 28 is directed.

[0054] The ledge wall 105 is designed to attach itself in a protruding manner to the lower part of the projection 85 to be located in order to access the partition wall section 77 the side wall 27 to be flush. The projecting wall 105 extends from an inner surface of the rear sloping wall section 81 the side wall 27 , to reach the leading end wall section 125 to be flush. The projecting wall 105 is from the leading end wall part 125 spaced apart in the forward / reverse direction.

[0055] The swimming guide wall 95 , the inner wall 96 , the inner wall 97 , the partition 100 , the extended wall 102 , the transitional training wall 103 , the transitional training wall 104 and the projecting wall 105 all upper surfaces are on the same plane as an upper surface of the connecting flange part. 33 are arranged. The rib 101 It has an upper surface that lies lower than this one.

[0056] As it is in Fig. As shown in 4, the upper structure 20 a roof section 130 , an upper projection part 131 , which pertains to the roof section 130 protrudes upwards at the front, and has an inlet 132 up, which is from the upper protrusion part 131 protrudes in order to be inclined upwards at the front. The upper structure 20 It also has a side wall 133 , represented in Fig. 1, a side wall 134 , represented in Fig. 4, a rear end wall 135 , a front end wall 136 and a connecting flange part 137 one of its lower ends. The side wall 133 is designed to separate from the left edge sections of the roof part 130 and the upper protrusion 131 to extend downwards. The side wall 134 is designed to separate itself from the right edge sections of the roof part 130 and the upper protrusion 131 to extend downwards. The rear end wall 135 is designed to extend from a rear edge section of the roof part 130 to protrude downwards. The front end wall 136 is designed to extend from a front end section of the upper projection part 131 to extend downwards. Also the upper structure. 20 is mounted in a vehicle in a position where the rear end wall135 and the front end wall 136 to stand perpendicular to the forward / reverse direction of the vehicle.

[0057] As it is in Fig. As shown in 1, the upper protruding part 131 a front wall section 140 , which extends from the front end wall 136 extends upwards to reach the front end wall 136 to be flush, a side wall section 141 , which extends from a front section of the side wall 133 extends upwards to reach the side wall 133 to be flush, a side wall section 142 , which extends from a front section of the side wall 134 , represented in Fig. 4, extends upwards to reach the side wall 134 to be flush, and a rear wall section 143 on, which extends from a front edge section of the roof part 130 extends upwards. The upper protrusion part 131 It also has a slanted part 144, the upper edge sections of the front wall part 140 , of the side wall section 141 and the side wall section 142 connects and is inclined downwards at the front in this respect, and has a horizontal upper plate part 145 up, the upper edge sections of the rear wall part 143 , of the side wall section 141 and the side wall section 142 connects.

[0058] The entrance 132 It has a tubular shape and extends vertically from the slanted part. 144 and thus extends in order to be inclined upwards at the front. As it is in Fig. Figure 2 shows an inner circumferential section of the inlet. 132 to an access route 148 This access route 148 It penetrates through the inside and outside of the tank body. 18 or runs between the inside and outside of the tank body 18 An indicator line of the highest liquid level 149, which marks the highest liquid level, is horizontal on an outer surface of the side wall part 141 , represented in Fig. 1. Trained to represent the outside world. An indicator part. 150 The letter "MAX", which indicates that a liquid level is the highest liquid level, is above this indicator line of the highest liquid level. 149 Designed to project outwards. An indicator line of the highest fluid level. 151 , which marks the highest liquid level, is also horizontal on an outer surface of the side wall part. 142 , represented in Fig. 4, trained to represent the outside world. An indicator part 152 The letter "MAX", indicating that the liquid level is the highest, is above this indicator line of the highest liquid level. 151designed to project outwards. The indicator lines of the highest fluid level. 149 and 151 are in a higher position than the roof section 130 trained.

[0059] As it is in the Fig. 1 and Fig. As shown in section 3, the side wall 133 a rear wall section 155 , a rear sloping wall section 156 , a partition wall section 157 , a front sloping wall section 158 and a front wall section 159 up. The rear wall section 155 extends from a left end edge section of the rear end wall 135 Vertically forwards / backwards. The rear sloping wall section. 156 extends diagonally from a front edge section of the rear wall part 155 towards the front, to be positioned on a right-hand side, that is, the inside in the left / right direction. The partition wall part 157extends from a front edge section of the rear sloping wall section 156 , to run parallel to the rear wall section 155 to lie down. The front sloping wall section. 158 extends diagonally from a front edge section of the partition wall part 157 to the front, to be positioned on the right side. The front wall section 159 extends from a front edge section of the front sloping wall part 158 forwards, parallel to the partition wall section 157 to be.

[0060] As it is in Fig. As shown in section 3, the side wall 134 a rear wall section 165 , a rear sloping wall section 166 , a partition wall section 167 , a front sloping wall section 168 and a front wall section 169 up. The rear wall section 156 extends from a right end edge section of the rear end wall 135Vertically forwards / backwards. The rear sloping wall section. 166 extends from a front edge section of the rear wall part 165 angled towards the front, so that it is positioned on the right side, that is, the outside in the left / right direction. The partition wall section 167 extends from a front edge section of the rear sloping wall section 166 forwards, parallel to the rear wall section 165 to lie down. The front sloping wall section. 168 extends from a front edge section of the partition wall part 167 diagonally to the front, to be positioned on the left side, that is, the inside in the left / right direction. The front wall section 169 extends from a front edge section of the front sloping wall part 168 forwards, parallel to the partition wall section 167 to lie down.

[0061] The connecting flange part137 stands for total circumferences of continuous lower edge sections of the side wall 133 , the side wall 134 , the rear end wall 135 and the front end wall 136 It extends horizontally outwards and is arranged within the same horizontal plane.

[0062] As it is in Fig. Figure 8 shows a floating guide wall. 175 , an interior wall 176 , an interior wall 177 , a projecting wall 178 , a partition wall 180 , an extended wall 182 , a transitional training wall 183 , a transitional training wall 184 and a projecting wall 185 in the upper structure 20 trained.

[0063] The swimming guide wall 175 It has an approximately cylindrical shape in a vertical direction. The floating guide wall 175is designed to attach itself in a protruding manner to the inner surface of the roof section 130 to be located. The swimming guide wall 175 is both with a cut-out part 187 on one side of the side wall 133 as well as a cut-out part 188 on one side of the side wall 134 trained. The projecting wall 178 It has a cross shape and is designed to protrude from the inner surface of the roof section. 130 to be located. The projecting wall 178 is located in a central position on the floating guide wall 175 arranged.

[0064] The interior wall 176 has a side wall section 190 , which runs parallel to the rear wall section 155 the side wall 133 lies and is intended to protrude from the inner surface of the roof section 130 to be located, and a connecting wall section 191on, which is designed to protrude from the inner surface of the roof section 130 to locate the floating guide wall 175 and an end edge section of the side wall 190 , which of the rear end wall 135 opposite each other, to connect the side wall section. 190 follows a direction perpendicular to the rear end wall 135 and is from the rear end wall 135 Spacing in the forward / reverse direction. The connecting wall section 191 lies parallel to the rear end wall 135 The cut-out part 187 the swimming guide wall 175 is on the opposite side of the connecting wall section 191 , which of the rear end wall 135 opposite each other, arranged.

[0065] The interior wall 177 has a side panel 192 , which runs parallel to the rear wall section 165 the side wall 134lies and is intended to protrude from the inner surface of the roof section 130 to be located, and a connecting wall section 193 on, which is designed to protrude from the inner surface of the roof section 130 to locate the floating guide wall 175 and an end edge section of the side wall part 192 to connect which of the rear end wall 135 opposite. The side wall section 192 follows a direction that runs perpendicular to the rear end wall 135 It stands and is from the rear end wall. 135 Spacing in the forward / reverse direction. The connecting wall section 193 lies parallel to the rear end wall 135 .

[0066] The partition wall 180 is designed to attach itself in a protruding manner to the inner surface of the roof section 130 to locate the floating guide wall 175and an end section of the rear wall part 165 the side wall 134 , which of the rear end wall 135 opposite each other, to connect the partition wall. 180 is on one front side of the connecting wall section 193 arranged and lies parallel to the connecting wall section 193 The cut-out part 188 the swimming guide wall 175 is between the partition wall 180 and the connecting wall section 193 arranged.

[0067] The extended wall 182 is designed to attach itself in a protruding manner to the inner surface of the roof section 130 to be located in order to move from a position on a front section of the floating guide wall 175 to extend forward, with this position towards the side wall 133 is directed. The extended wall 182 is made from a base end wall part 195 , which is separated from the swimming guide wall 175extends and parallel to the partition wall section 157 the side wall 133 lies, and a leading end wall part 196 constructed from an opposite side of the base end wall section 195 extends to the swimming guide wall 175 opposite, parallel to the front sloping wall section 158 the side wall 133 to lie down.

[0068] The transitional training wall 183 is designed to attach itself in a protruding manner to the inner surface of the roof section 130 to be located, and features a base end wall part 198 , a slanted partition wall section 199 and a leading end wall section 200 up. The base end wall part 198 extends from an end section of the front wall part 159 , which of the front end wall 136 opposite, parallel to the front end wall 136 to lie down. The slanted partition wall section 199extends from a terminal edge section of the base end wall part 198 , which of the side wall 133 opposite, parallel to the front sloping wall section 168 the side wall 134 to lie down. The leading end wall section 200 extends from an end edge section of the sloping partition wall part 199 , which is the base end wall part 198 opposite, in order to be parallel to the partition wall section 167 the side wall 134 to lie down. The leading end wall section 200 is from the partition wall 180 spaced apart in the forward / reverse direction.

[0069] The transitional training wall 184 is designed to attach itself in a protruding manner to the inner surface of the roof section 130 to be located, and features a base end wall part 203 , a slanted partition wall section 204 and a leading end wall section 205 up. The base end wall part 203 is on the base end wall part198 , which leads to the front end wall 136 is directed, arranged and extends from the front wall section 159 the side wall 133 parallel to the front end wall 136 The slanted partition wall section 204 extends from a terminal edge section of the base end wall part 203 , which of the side wall 133 opposite, parallel to the front sloping wall section 168 the side wall 134 to lie down. The leading end wall section 205 extends from an end edge section of the sloping partition wall part 204 , which is the base end wall part 203 opposite, in order to be parallel to the partition wall section 167 the side wall 134 to lie. An end section of the leading end wall part described above. 200 , which leads to the rear end wall 135 The direction it is directed is closer to the rear end wall. 135 arranged as on an end section of the leading end wall part205 , which leads to the rear end wall 135 is directed.

[0070] The ledge wall 185 is designed to attach itself in a protruding manner to the inner surface of the roof section 130 to be located in order to locate the partition wall section 167 the side wall 134 to follow. The ledge wall 135 extends from an inner surface of the sloping wall section 166 the side wall 134 , to reach the leading end wall section 205 to be flush. The projecting wall 185 is from the leading end wall part 205 spaced apart in the forward / reverse direction.

[0071] The swimming guide wall 175 , the inner wall 176 , the inner wall 177 , the partition 180 , the extended wall 182 , the transitional training wall 183 , the transitional training wall 184 and the projecting wall 185all have deep or deeper surfaces that are on the same plane as the deep or deeper surface of the connecting flange part. 137 are arranged.

[0072] As it is in Fig. As shown in section 5, the roof section 130 a main plate part 210 , which is arranged horizontally, and a slanted plate section 211 on, which is arranged to be inclined with respect to the horizontal. As it is in Fig. As shown in section 3, the inclined plate part 211 a plate part 212 , which is approximately rectangular, elongated in the front / back direction and has a wide area, and a plate part 213 a plate part that is approximately rectangular, short in the front / back direction, and has a narrow area. 212 and the plate part 213 are arranged on the same plane. The slanted part of the plate 211It has an L-shape when viewed from above. The slanted plate section 211 is within an area of ​​the partition wall section 167 to the front sloping wall section 168 Designed in the forward / reverse direction, it is entirely separated from the side wall. 134 separated and has a shape in which part of it extends over the side of the side wall 133 on the plate part 213 goes out.

[0073] As it is in Fig. The slanted plate part shown in figure 5 is 211 from a position on the passage training wall 184 behind the passage training wall 183 to a position adjacent to the partition wall 180 formed. The slanted plate section 211 is inclined in such a way that a height position of a section which is connected to the base end wall part 203 the transitional training wall 184 is connected, lies at the lowest point, and has a height position from the base end wall section 203to the rear end wall 135 increases. As it is in Fig. Figure 6 shows the inclined plate part. 211 inclined so that the height position at the same position is constant in the forward / reverse direction, regardless of left / right orientation. Furthermore, as described in Fig. Figure 5 shows an end section of the inclined plate part. 211 , which leads to the right end wall 135 is directed, with respect to height position identical to the main plate part 210 .

[0074] The roof section 130 features protruding wall parts 214 until 219 on, which is formed by an edge section of the inclined plate part 211 rise upwards to connect with the main plate part 210 to be connected, and they are in Fig. 3 shown. The protruding part of the wall 214 is a section that is formed by the front edge sections of the plate parts 212 and 213 rise up, parallel to the front end wall136 lies and over the side of the side wall 133 extends beyond. The protruding part of the wall 215 is a section that is separated from a front section of the plate part 212 , which leads to the side wall 134 is directed, rises up and is parallel to the front sloping wall section 168 lies. The protruding part of the wall 216 is a section that is separated from an intermediate section and a rear section of the plate part 212 , which leads to the side wall 134 is directed, protrudes in the forward / backward direction and is part of the partition wall 167 follows. The protruding part of the wall 216 is slightly bent to create a gap from the partition wall section 167 to reduce the protruding wall section towards the rear. 217 is a section that extends from a rear edge section of the plate part 213 rises, parallel to the protruding part of the wall 214 lies and over the side of the side wall 133extends beyond. The protruding part of the wall 218 is a section that is separated from the intermediate section of the plate part 212 , which leads to the side wall 133 is directed forward / backward, protrudes and is parallel to the partition wall part 157 lies. The protruding part of the wall 219 is a section that is separated from the rear section of the plate part 212 , which leads to the side wall 133 is directed, rises up and is approximately parallel to the protruding part of the wall 215 lies.

[0075] In the roof section 130 is a rear edge section of the plate part 212 with the main plate part 210 connected to form a border section 220 with the main plate part 210 to train. This border section 220 lies parallel to the protruding part of the wall 214 As it is in Fig. 5 shown is the roof part 130 with a concave part 221formed, which is relative to the main plate part 210 The downward recess is created by the slanted plate section. 211 and the protruding wall parts 214 until 219 Furthermore, if a section of the main plate part 210 , which is a communication channel 231 (described below) corresponds to a communication path roof panel section 210A The concave part is determined 221 trained to be relative to the communication path roof panel section 210A to be recessed at the bottom. In this way, the concave part 221 trained to cover a portion of the area 222 (described below) to realize. This allows it to be recognized that the area portion 222 is formed by observing the external appearance of the upper structure 20 , where the manufacturing efficiency of the tank 18 is improved. Furthermore, if the upper structure 20If training is given, it is possible to use the slanted part of the plate. 211 to form with a specific or fixed thickness and to prevent deformation that could be caused by a heat sink or the like, thereby improving the manufacturing accuracy of the tank.

[0076] The hatched area, shown in Fig. 8, denotes the area portion 222 within the sloping part of the plate 211 That is, as it says in Fig. As shown in section 5, this area 222 is a leading or front end face of a projecting side of a convex part 226 , which is located on a lower surface of the roof section 130 is designed to protrude downwards, with the concave part 221 on an upper surface of the roof section 130 is formed. As with the slanted plate section. 211 is this area part 222arranged on the same plane and is inclined in such a way that a height position of a section which is connected to the base end wall part 203 the transitional training wall 184 is connected, lies at the lowest point, and has a height position from the base end wall section 203 to the rear end wall 135 increases. As it is in Fig. The area shown in 6 is the area part 222 inclined such that the height position at the same position is constant in the forward / backward direction, regardless of the position in the left / right direction. Furthermore, a height position of an end section of the surface part. 222 , which leads to the rear end wall 135 is directed identically to that of a horizontal main ceiling surface 225 , which is an inner surface of the main plate part 210 is, as it is in Fig. 5 is shown. The area section 222 is designed to fit the concave part 221to form, in which the inclined plate part is relative to the main plate part 210 The lower part is recessed, but the surface area 222 can be done using the roof section 130 to be formed as one plane, without forming the concave part. 221 .

[0077] As in Fig. The area section is shown in section 8. 222 from an L-shaped area 223 , which are between the passage training wall 183 and the transition training wall 184 is arranged, and has an approximately pentagonal area 224 built on the opposite side of the passage training wall 183 , which is the transitional training wall 184 opposite, is arranged. The area 223 is built within a total area between the base end wall parts 198 and 203 , of a total area between the sloping partition wall sections 199 and 204and an entire area of ​​a section that includes the leading end wall part 205 overlapping in the forward / reverse direction, within a total area between the leading end wall parts 200 and 205 A terminal edge section 223a the area 223 , which leads to the rear end wall 135 directed is a section that appears by the boundary part 220 of the slanted plate section 211 , represented in Fig. 3, is formed, and parallel to the rear end wall 135 lies.

[0078] As it is in Fig. As shown in section 8, the area extends 224 from the base end wall part 198 to an opposite side, which is adjacent to the base end wall part 203 is facing towards, and extends from the leading end wall part 200 to an opposite side, which is adjacent to the leading end wall part 205 is facing it. A terminal edge section 224a the area 224, which leads to the rear end wall 135 It is directed parallel to the rear end wall. 135 trained. A position of the surface 224 In the forward / reverse direction, it is identical to that of the end edge section. 223a . As with the end edge section 223a The end edge section appears 224a , by the border part 220 of the slanted plate section 211 , represented in Fig. 3, is being trained.

[0079] As it is in Fig. The section shown in 8 is a terminal border section. 224b the area 224 , which leads to the side wall 133 is directed rather than the extended wall 182 parallel to the leading end wall section 200 , on one side of the leading end wall section 200 The end edge section 224b is a section that appears by the protruding part of the wall 218 , represented in Fig. 3, is trained. Furthermore, as is stated in Fig. As shown in section 8, the area 224 inclined so that an end edge section 224c the same between the end edge sections 224a and 224b the same both the end edge section 224a as well as 224b cuts at an obtuse angle. The end edge section 224c is a section that appears by the protruding part of the wall 219 , represented in Fig. 3, is formed. The end edge sections 224a , 224b and 224c overlap the swimming guide wall 175 , the extended wall 182 , the partition 180 and the projecting wall 185 not.

[0080] The connecting flange part 33 the lower structure 21 , represented in Fig. 7, and the connecting flange part 137 the upper structure 20 , represented in Fig. 8, for example, are joined by welding, so that the tank body 18is being formed. At this point, the rear end walls are 28 and 135 , the front end walls 32 and 136 , the rear wall sections 65 and 155 , the rear sloping wall sections 166 and 156 , the partition wall parts 67 and 157 and the front sloping wall sections 68 and 158 Each is connected along its entire length by overlapping at horizontal positions. Furthermore, the front wall section 69 and the front end wall section 70 with the front wall section 159 They are connected by overlapping horizontal positions over their entire length. Furthermore, the rear wall sections are 75 and 165 , the rear sloping wall sections 81 and 166 , the partition wall parts 82 and 167 , the front sloping wall sections 83 and 168 and the front wall sections 84 and 169Each is connected by superimposing horizontal positions over the entire length.

[0081] Furthermore, the swimming guide walls 95 and 175 , the side wall parts 110 and 190 , the connecting wall parts 111 and 191 , the side wall parts 112 and 192 , the connecting wall parts 113 and 193 , the partition walls 100 and 180 and the base end wall parts 115 and 195 Each is connected by overlapping horizontal sections over its entire length. Furthermore, the leading end wall sections are 116 and 196 , the base end wall parts 118 and 198 , the slanted partition wall sections 119 and 199 , the leading end wall parts 120 and 200 , the base end wall parts 123 and 203 , the slanted partition wall sections 124 and 204 and the leading end wall parts 125and 205 Each is connected by superimposing horizontal positions over its entire length. Furthermore, the projecting walls are 105 and 185 Each is connected by superimposing horizontal positions over the entire length, thereby aligning the front end positions.

[0082] In the tank body 18 One section becomes a tank chamber 230 , in which the liquid is stored, which is connected to the passage training walls 104 and 184 , the projecting walls 105 and 185 , the front wall sections 69 and 159 , the front sloping wall sections 68 and 158 , the partition wall sections 67 and 157 , the rear sloping wall sections 66 and 156 , the rear wall sections 65 and 155 , the rear end walls 28 and 135 and the rear wall sections 75and 165 is surrounded. Furthermore, a section formed by the front end walls 32 and 136 , the front wall sections 84 and 169 , the front end wall part 70 and the front wall section 59 , the front wall sections 69 and 159 , the front sloping wall sections 83 and 168 , the partition wall sections 82 and 167 , the rear sloping wall sections 81 and 166 , the transitional training walls 104 and 184 and the projecting walls 105 and 185 is surrounded by a communication path 231 , who is removed from the entrance 132 , which is designed to allow liquid from outside into the tank chamber 230 to be able to insert and is positioned at the front of the vehicle, extending to the rear of the vehicle. The tank compartment 230 communicates with the secondary fluid pressure chamber of the main cylinder12 about the opening of communication 44 and stores fluid that flows into the secondary fluid pressure chamber of the main cylinder. 12 to be supplied.

[0083] A lower end of the communication path 231 is defined by an inner surface that faces an upper side of the front bottom part 30 is directed, and an inner surface that leads to an upper side of the projecting base part. 85 is directed, with a height position aligned with this inner surface. Thus, a communication opening is created. 232 , which involves communication between the communication path 231 and the tank chamber 230 enables movement between the transition training walls 104 and 184 and between the projecting walls 105 and 185 trained. As it is in Fig. As shown in section 4, the communication opening 232an upper end section formed on an inner surface that corresponds to a lower side of the main plate part 210 of the roof section 130 is directed, and has a lower end section formed on an inner surface that faces the upper side of the projecting base part. 85 is directed. As it is in Fig. The area shown in section 5 is the area shown above. 222 of the roof section 130 , which leads to an upper section of the tank chamber 230 is tilted so that it faces from the front of the vehicle towards the communication opening. 232 the rear of the vehicle becomes higher, in a state where the tank chamber is mounted in a vehicle.

[0084] A liquid passing through the inlet 132 , represented in Fig. 8, is filled and through the communication opening 232 into the tank chamber 230 via the communication channel 231what is introduced is put into one pass 233 between the transitional training walls 103 and 183 and between the transitional training walls 104 and 184 , depicted in the Fig. 7 and Fig. 8, introduced, wherein a lower end section thereof is attached to an inner surface of the intermediate floor part 23 deeper than the communication opening 232 is formed. At the same time, the liquid is transferred into a chamber. 235 introduced, which the inner area of ​​the front lower projection part 24 features an intermediate opening 234 between the transitional training walls 103 and 183 and between the partition walls 100 and 180 The chamber is also located here. 235A tank chamber in which fluid is stored, and this communicates with the primary fluid pressure chamber of the master cylinder, but for descriptive purposes it is simply referred to as a "chamber". As it is in Fig. As shown in section 4, the intermediate opening 234 an upper end section formed on the inner surface facing the lower side of the main plate part 210 of the roof section 130 is directed, and has a lower end section formed on an inner surface (not shown) that forms a top surface of the intermediate floor part. 23 is directed. As it is in the Fig. 7 and Fig. As shown in 8, this is the intermediate opening 234 designed to face a rear side relative to the communication opening 232 to be displaced. If a section in the front lower protrusion part 24 this chamber 235 When filled with a liquid, the liquid is placed in a chamber237 introduced, which the interior of the rear lower projection part 25 contains, over a passage 236 between the front sloping wall sections 68 and 158 , the partition wall sections 67 and 157 , the rear sloping wall sections 66 and 156 , the rear wall sections 65 and 155 , the extended walls 102 and 182 , the swimming guide walls 95 and 175 and the interior walls 96 and 176 , wherein a lower end section thereof is attached to the inner surface of the intermediate floor section 23 is formed. If a section in the rear lower protrusion part 25 this chamber 237 Once filled with liquid, the liquid is placed in a chamber 239 within the floating guide walls 95 and 175 inserted, over the cut-out part 108 , through a passage238 between the rear wall sections 75 and 165 , the partition walls 100 and 180 and the interior walls 97 and 177 , wherein a lower end section thereof is attached to the inner surface of the intermediate floor section 23 is trained.

[0085] Since the passage 233 at the front relative to the communication opening 232 is trained and since the chamber 235 at the front relative to the intermediate opening 234 Once trained, it can control the amount of fluid that enters the communication pathway. 231 The amount of liquid being drained can be controlled or monitored, even if the liquid is in the tank chamber. 230 moved forward during braking.

[0086] That is, if the amount of fluid that enters the communication path 231 If the drain is large, the liquid could leak from a gap between the cap and the lid. 19 and the tank body18 It will run out, but this condition can be prevented.

[0087] In the tank described above in patent literature 1, a gap is formed between the roof of the tank and the liquid level, even when the maximum permissible amount of liquid has been introduced. In contrast, if, according to the tank 11 In the present embodiment, the liquid is introduced until the liquid level matches the indicator line of the maximum permissible liquid level. 149 To improve the storage efficiency of the liquid, the liquid comes with the roof part. 130 in contact. If, in this case, the liquid passes through the inlet 132 is introduced until the liquid level matches the indicator line of the highest liquid level. 149 If it matches, air can enter the passage. 233 and the chamber 235collect those located at the front relative to the communication opening 232 the tank chamber 230 are positioned, even in the case of a flat ceiling surface of the roof section 130 If the ceiling surface is tilted upwards even slightly at the front, for example due to an installation tolerance, this means that the liquid may not be introduced satisfactorily into the tank chamber.

[0088] In contrast, the tank 11 according to the present embodiment, as shown by the hatched area in Fig. The area section is marked 8. 222 , which is located on the upper section of the tank chamber 230 is designed to be inclined, so that the height from the front of the vehicle to the communication opening 232The rear of the vehicle increases in a state where the tank compartment is installed in the vehicle. For this reason, air can enter the tank compartment during the filling process. 230 satisfactory from the communication opening 232 be released, and an amount of air that is in the passage 233 and the chamber 235 , located at the front relative to the communication opening 232 the tank chamber 230 The amount of liquid that collects can be reduced. That is, it is possible to satisfactorily transfer the liquid into the tank chamber. 230 to introduce more liquid into the tank chamber 230 to store. Consequently, it is possible to further improve the storage efficiency of the liquid, allowing the tank to be designed more compactly. Furthermore, the amount of air that accumulates in the tank chamber 230 The amount that accumulates can be reduced, improving the appearance of the tank chamber. 230, when this liquid is stored.

[0089] According to the first embodiment, the inclined surface part 211 on the upper structure 20 formed, whereby the surface area 222 is realized. That is to say, the area portion 222 is on the upper structure 20 integrally formed, but the present invention is not limited thereto. The surface part 222 can be done using the slanted surface part 211 as an inclined surface element independent of the upper structure 20 and the lower structure 21 and by arranging the slanted surface element between the upper structure 20 and the lower structure 21 of the tank 18 to be realized. [Second embodiment]

[0090] Next, a second embodiment based on the Fig. 9 described. Fig. Figure 9 is a sectional view equivalent to the cross-section CC of the Fig. 3. In the first embodiment, the surface part 222 It is designed at an angle so that the height position at the same position is constant in the forward / reverse direction, regardless of the position in the left / right direction. According to the second embodiment, a surface section 322 , which belongs to the area 222 It corresponds to being obliquely shaped in both the forward / backward direction and the left / right direction.

[0091] The details are as follows: Fig. Figure 9 shows the height position of an inclined plate section. 311 (corresponds to the slanted part of the plate) 211 ) in the forward / reverse direction of the vehicle, the same as in the first embodiment. On the other hand, there is a height position of the inclined plate part. 311inclined in the left / right direction of the vehicle so that a height position of a section which has a protruding wall part 318 (corresponds to the protruding part of the wall) 218 ) is connected, which has a concave part 321 (corresponds to the concave part) 221 ) forms, lies at its lowest point, and determines the height position when approaching a leading end wall section 205 becomes higher or increases.

[0092] Furthermore, as with the slanted plate part 311 the area 322 The same height position in the forward / reverse direction of the vehicle as in the first embodiment. On the other hand, a height position of the surface section is required. 322 inclined in the left / right direction of the vehicle so that the height position of the section that is connected to the protruding wall part 318 is connected to the concave part 321forms, lies at the lowest point, and the height position as it approaches the leading end wall section 205 increases. That is, the area portion 322 is inclined in such a way that a height position of a section on which a base end wall part 203 with the protruding part of the wall 318 is connected, lies at the lowest point, and is at a height approaching a communication opening. 232 It increases. In other words, the area is... 322 inclined so that the vertical position is from a diagonal position of a section which is the communication opening 232 corresponds to opening up communication 232 increases. For this reason, air can escape from the communication opening. 232 through the surface area 322 are released quickly, and the amount of air that passes through in one pass 233 and a chamber 235 collects which are relative to the opening of communication 232 a tank chamber 330(corresponds to the tank chamber) 230 The number of openings located at the front can be reduced. This means it is possible to satisfactorily transfer liquid into the tank chamber. 330 to introduce more liquid into the tank chamber 330 to store. Consequently, it is possible to further improve the storage efficiency of the liquid, allowing the tank to be designed more compactly. Furthermore, the amount of air that accumulates in the tank chamber 330 The amount that accumulates can be reduced, improving the appearance of the tank chamber. 330 , when this liquid is stored. [Third embodiment]

[0093] Next, a third embodiment based on the Fig. 10 and Fig. 11 described. In the third embodiment, a tank body 418 relative to the tank body 18 The first embodiment is partially modified. In particular, an upper structure is modified. 420 of the tank body418 relative to the upper structure 20 partially modified. To the surface area 222 According to the first embodiment, the inclined plate part is to be formed 211 through the concave part 221 formed, which is towards the lower side relative to the main plate part 210 It is omitted. In the third embodiment, a stepped section is included. 401 , which is located on an upper side relative to a main plate part 410 (corresponds to the main plate part) 210 ) protrudes, formed, and a slanted plate part 411 (corresponds to the slanted part of the plate) 211 ), a concave part 421 (corresponds to the concave part) 221 ) and a communication path roof panel section 410A (corresponds to the communication path roof panel section) 210A ) are set up to work on this part of the stage 401 to be trained. Consequently, a portion of the surface is 422 , which belongs to the area 222corresponds to the slanted part of the plate 411 trained. As it is in Fig. As shown in 11, the inclined plate part 411 , the concave part 421 and the area part 422 the same structure as the slanted plate part 211 , the concave part 221 and the area part 222 of the first embodiment. Thus, the concave part 421 trained to be relative to the communication path roof panel section 410A to be omitted. However, the concave part 421 on an upper side relative to the main plate part 410 trained.

[0094] In this way, the third embodiment can also exert the same effects as the first embodiment, due to the surface area. 422 .

[0095] In each of the embodiments, the surface part 222 , 322 or 422designed as an inclined surface, but there is no restriction on this as long as it rises from one side of the vehicle to the communication opening on the other side of the vehicle, and can be designed as a curved surface or a stepped surface.

[0096] Each of the embodiments described above relates to a tank in which an inlet for introducing a liquid from the outside into a tank chamber where the liquid is stored is provided on one side of a vehicle, a communication path extending to the other side of the vehicle, and a communication opening capable of establishing communication between the communication path and the tank chamber are formed. A surface portion, which increases in height from one side of the vehicle to the communication opening on the other side of the vehicle when the tank chamber is mounted in the vehicle, is formed on an upper section of the tank chamber. This surface portion effectively releases air from the communication opening, thereby reducing the amount of air that accumulates in the tank chamber.This means that the liquid can be introduced into the tank chamber in a satisfactory manner.

[0097] Furthermore, a roof section is formed on the upper part of the tank chamber, and the surface section is formed at a position that is recessed downwards relative to the roof section. Furthermore, according to the tank, in which an upper structure, on which the inlet is provided, and a lower structure, on which the tank chamber is provided, are attached and formed, the surface section is formed on the upper structure. Furthermore, the communication opening is formed on a rear side of the tank chamber in the forward / reverse direction of the vehicle, and the surface section is inclined such that its height increases from a front to a rear position in the forward / reverse direction of the vehicle. Furthermore, an indicator line for the highest liquid level in the tank is formed at an upper position in a vertical direction relative to the surface section. Industrial applicability

[0098] According to the tank described above, the liquid can be introduced in a satisfactory manner. Reference symbol list 11 Tank 132 Admission 222 Area section 230 tank chamber 231 Communication channel 232 Communication opening

Claims

[1] Tank which has: an inlet provided on one side of a vehicle to introduce a liquid from the outside into a tank compartment where the liquid is stored; a communication path designed to extend from the inlet towards the other side of the vehicle; and a communication opening capable of establishing communication between the communication path and the tank chamber, wherein a surface section which is constructed in such a way that its height increases from one side of the vehicle to the communication opening on the other side of the vehicle, in a state in which the tank chamber is mounted in the vehicle, is formed on an upper section of the tank chamber. [2] Tank according to claim 1, wherein a roof part is formed on the upper section of the tank chamber and the surface part is formed at a position which is recessed downwards relative to the roof part. [3] Tank according to claim 1, further comprising: an upper structure where the entrance is provided; and a lower structure on which the tank chamber is provided, wherein the upper structure and the lower structure are attached to form a tank body, and the surface area is formed on the upper structure. [4] Tank according to one of claims 1 to 3, wherein the communication opening is located on the rear side of the tank chamber in a forward / reverse direction of the vehicle; and The surface area is inclined in such a way that the height position increases from a front towards a rear in the forward / rear direction of the vehicle. [5] Tank according to one of claims 1 to 4, wherein an indicator line of the highest liquid level in the tank is formed at an upper position in a vertical direction relative to the surface part.