WO2015011946A1 - タンクキャップ - Google Patents
タンクキャップ Download PDFInfo
- Publication number
- WO2015011946A1 WO2015011946A1 PCT/JP2014/057479 JP2014057479W WO2015011946A1 WO 2015011946 A1 WO2015011946 A1 WO 2015011946A1 JP 2014057479 W JP2014057479 W JP 2014057479W WO 2015011946 A1 WO2015011946 A1 WO 2015011946A1
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- WO
- WIPO (PCT)
- Prior art keywords
- tank cap
- outer body
- leaf spring
- plate portion
- rigidity
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/0406—Filler caps for fuel tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/0406—Filler caps for fuel tanks
- B60K2015/0432—Filler caps for fuel tanks having a specific connection between the cap and the vehicle or tank opening
- B60K2015/0438—Filler caps for fuel tanks having a specific connection between the cap and the vehicle or tank opening using screw or bayonet
- B60K2015/0441—Filler caps for fuel tanks having a specific connection between the cap and the vehicle or tank opening using screw or bayonet with torque control
Definitions
- the present invention relates to a tank cap technology.
- a tank cap that is attached to a fuel filler port of a fuel tank is known (for example, see Patent Document 1).
- a tank cap generally includes an outer body and a leaf spring.
- the outer body is a casing that is gripped by an operator when the tank cap is removed, and the leaf spring is a component that is attached to the lower side of the outer body.
- an inner body, a gasket, and the like are accommodated inside the outer body.
- the leaf spring is formed with a plate portion obtained by extending the leaf spring in the radial direction.
- a slope portion and a recess are formed in the fuel filler opening of the fuel tank (see, for example, Patent Document 2). Accordingly, in such a tank cap, when the operator grasps the outer body and rotates it in the “closed” direction, the plate portion moves along the slope portion and presses the gasket against the oil supply port.
- the lock part which does not rotate to an "open" direction is comprised because a plate part fits into a recessed part.
- the tank cap is designed so that the plate portion starts to rise up the slope portion when it is turned in the “closed” direction upon installation. At this time, a part of the plate portion rides on the slope portion and is bent (specifically, the torsional stress and bending stress are generated in the entire leaf spring), and a reaction force is generated. Had to be grabbed and turned in the "closed” direction. Therefore, a tank cap that can be attached with a small force was demanded.
- the tank cap is designed so that the plate part is removed from the recess when it is rotated in the “open” direction upon removal. At this time, a part of the plate portion rides on the concave portion and is bent (specifically, the torsional stress and bending stress are generated in the entire leaf spring), and a reaction force is generated. I had to grab it and turn it in the “open” direction. However, if it is possible to remove it with a small force, there arises a problem that it turns in the “open” direction unexpectedly. Therefore, there was a need for a tank cap that can be removed with an appropriate force while ensuring moderation.
- An object of the present invention is to provide a tank cap that can be attached with a small force and can be removed with an appropriate force while ensuring a moderation feeling.
- the first aspect of the present invention is: An outer body, A leaf spring attached to the outer body, When the outer body is turned, the plate part extended from the leaf spring moves along the slope part on the tank side, The leaf spring starts to rotate in the “open” direction by grasping the outer body, including rigidity (including bending rigidity and torsional rigidity) when the operator grasps the outer body and starts rotating in the “closed” direction.
- the stiffness (including bending stiffness and torsional stiffness) is different.
- a second aspect of the present invention is the tank cap according to the first aspect,
- the plate portion moves along the slope portion to constitute a lock mechanism that fits into the recess
- the leaf spring has a rigidity when the plate portion starts to climb up the slope portion when an operator grasps the outer body and rotates in the “closed” direction, and rotates in the “open” direction by grasping the outer body.
- the rigidity when the plate part is detached from the recess is different.
- a third aspect of the present invention is the tank cap according to the second aspect,
- the leaf spring grips the outer body in the “open” direction rather than the rigidity when the plate portion starts to rise up the slope when the operator grips the outer body and rotates it in the “closed” direction. It is said that the rigidity when the plate part is removed from the recess when rotated is higher.
- a fourth aspect of the present invention is the tank cap according to the third aspect,
- the leaf spring is attached to the outer body at a position having a predetermined phase angle in the “open” direction with reference to an imaginary line passing through the center of the plate portion from the center point of the leaf spring. It is.
- the leaf spring has an inclined surface formed on the long side of the plate portion, and the depression angle on the “open” side is larger than the depression angle on the “close” side.
- a sixth aspect of the present invention is the tank cap according to the third aspect,
- an inclined surface is formed on the long side of the plate portion, and the bending allowance on the “open” side is longer than the bending allowance on the “closed” side.
- a seventh aspect of the present invention in the tank cap according to any one of the first to sixth aspects, An inner body attached to the inside of the outer body; A gasket attached to the lower surface of the inner body, A resin sheet is disposed between the inner body and the gasket.
- the leaf spring is rigid when the operator grips the outer body and starts to rotate in the “closed” direction, and when the leaf spring starts gripping the outer body and rotates in the “open” direction.
- the rigidity is different. For this reason, it is possible to make a difference between the torque when attaching the tank cap and the torque when removing the tank cap. Therefore, the operability of the tank cap can be improved.
- the leaf spring grips the rigidity when the plate portion starts to rise up the slope portion when the operator grasps the outer body and rotates in the “closed” direction, and grasps the outer body.
- the rigidity when the plate portion is removed from the recess differs. For this reason, it is possible to make a difference between the torque when attaching the tank cap and the torque when removing the tank cap.
- a moderation feeling when removing the tank cap can be secured. Therefore, the operability of the tank cap can be further improved.
- the leaf spring grips the outer body rather than the rigidity when the plate portion starts to rise up the slope portion when the operator grips the outer body and rotates it in the “closed” direction.
- the rigidity when the plate part is removed from the recess is higher. Therefore, the tank cap can be attached with a small force, and a moderation feeling can be secured while the tank cap can be removed with an appropriate force.
- the leaf spring is attached to the outer body at a position having a predetermined phase angle in the “open” direction with reference to an imaginary line passing through the center of the plate portion from the center point of the leaf spring. It is attached.
- the leaf spring has an inclined surface on the long side of the plate portion, and the depression angle on the “open” side is larger than the depression angle on the “closed” side.
- the leaf spring has an inclined surface on the long side of the plate portion, and the bending margin on the “open” side is longer than the bending margin on the “closed” side.
- the inner body is attached to the inside of the outer body, and the gasket is attached to the lower surface of the inner body. Then, a resin sheet is disposed between the inner body and the gasket. For this reason, it is possible to prevent an excessive torque required to rotate the tank cap in the “closed” direction or the “open” direction.
- region Ra shown in FIG. The figure which expanded area Ra of the tank cap concerning other embodiments.
- FIG. 1 is a diagram showing an overall configuration of a tank cap 100 according to the present embodiment.
- FIG. 1 shows the tank cap 100 in the third trigonometric method
- FIG. 1A is a top view
- FIG. 1B is a side view
- FIG. 1C is a bottom view.
- FIG. 2 is a view showing a state in which the tank cap 100 is attached to the fuel filler port To of the fuel tank T.
- FIG. 3 is an enlarged view of the region Ra shown in FIG.
- FIG. 4 is an enlarged view of a region Ra of the tank cap according to another embodiment.
- the tank cap 100 is attached to the fuel supply port To of the fuel tank T and closes the fuel supply port To.
- the tank cap 100 is mainly composed of an outer body 1 and a leaf spring 2.
- the tank cap 100 includes an inner body 3 and a gasket 4.
- the outer body 1 is a casing that is gripped by an operator when the tank cap 100 is detached.
- the outer body 1 is formed of a resin material.
- the peripheral plate portion 1R of the outer body 1 is a portion that is gripped by an operator when the tank cap 100 is attached and detached, and is provided with a plurality of protrusions 1t with a certain interval.
- the upper plate portion 1T of the outer body 1 is a portion that closes the fuel filler opening To when the tank cap 100 is attached, and is formed in a dome shape with a raised central portion.
- the leaf spring 2 is a component that is attached below the outer body 1.
- the leaf spring 2 is formed of a spring steel material.
- the plate portion 2P of the leaf spring 2 is a portion that hangs on the slope portion Ts on the fuel tank T side, and is formed by extending the leaf spring 2 in the radial direction.
- the plate portion 2P of the leaf spring 2 is also a portion that fits into the recess Td on the fuel tank T side (see FIGS. 6 and 8).
- the inner body 3 is a component that is attached to the inside of the outer body 1.
- the inner body 3 is formed of a resin material.
- the upper surface of the inner body 3 is a part constituting a breather passage (air passage), and a spiral partition plate 3p is formed.
- the lower surface of the inner body 3 is a portion to which the gasket 4 is attached, and an annular support plate 3s is formed.
- the gasket 4 is a component attached to the lower surface of the inner body 3.
- the gasket 4 is made of a rubber material.
- the upper surface of the gasket 4 is formed in a plurality of wedge shapes so that a surface pressure can be secured when pressed against the lower surface of the inner body 3.
- the lower surface of the gasket 4 is also formed in a plurality of wedge shapes so as to ensure a surface pressure when pressed against the upper wall surface Trt of the fuel filler port To.
- a resin sheet (for example, a polypropylene sheet) 5 may be disposed between the inner body 3 and the gasket 4. This is intended to reduce friction by the resin sheet 5. Thereby, it is possible to prevent the torque necessary to rotate the tank cap 100 in the “closed” direction or the “open” direction from becoming excessive.
- FIG. 5 is a view showing the leaf spring 2.
- FIG. 5 shows the leaf spring 2 in the third trigonometric method
- FIG. 5A is a bottom view
- FIG. 5B is a side view.
- the arrow X shown in the drawing indicates the direction in which the tank cap 100 is rotated (referred to as the “closed direction”).
- an arrow Y shown in the drawing indicates a direction that is turned when the tank cap 100 is removed (referred to as an “open” direction).
- FIG. 10 to be described later shows a detailed shape of the leaf spring 2.
- the third trigonometric method is used.
- the leaf spring 2 is attached below the outer body 1 by two bolts 6 (see FIGS. 1 and 2). Therefore, when the operator grips and turns the outer body 1, the leaf spring 2 rotates together with the outer body 1.
- the rotation center of the leaf spring 2 is defined as “center point C”.
- the leaf spring 2 has two plate portions 2P.
- the plate portion 2P indicates a portion extended in the radial direction, that is, a portion extended in a direction away from the center point C.
- each plate portion 2P is formed in a substantially trapezoidal shape in which the width W gradually decreases as the distance from the center point C increases.
- each plate portion 2P has the same shape as each other, and is formed at a position where the phase difference around the center point C is 180 °. That is, each plate portion 2P is point-symmetric about the center point C.
- each plate portion 2P has a long side extending in a direction away from the center point C. For this reason, the side along the direction away from the center point C is defined as “long side 2 Pe”.
- An inclined surface 2PS is formed on the long side 2Pe of each plate portion 2P.
- the inclined surface 2PS is formed by being bent downward with respect to the horizontal direction. The depression angles ⁇ 1 and ⁇ 2 and the bending margins b1 and b2 of the inclined surface 2PS will be described later.
- the fuel tank T is made by welding parts formed by bending rolled steel.
- the fuel tank T is provided with a fuel filler port To on its upper plate.
- the oil filler port To is a hole punched out in a circular shape, and a rib Tr for attaching the tank cap 100 is formed around the hole.
- the rib Tr will be described below.
- the rib Tr is formed by bending a part of the fuel tank T. More specifically, the rib Tr is formed by an outer wall surface Tro formed by bending an upper plate of the fuel tank T, an upper wall surface Trt, and an inner wall surface Tri.
- the outer wall surface Tro is perpendicular to the upper plate of the fuel tank T
- the upper wall surface Trt is perpendicular to the outer wall surface Tro.
- the inner wall surface Tri is folded inside the fuel tank T and is substantially perpendicular to the upper wall surface Trt. That is, the rib Tr is formed in a hook shape by bending the upper plate of the fuel tank T.
- the rib Tr is devised in various ways to attach the tank cap 100. That is, the upper wall surface Trt and the inner wall surface Tri are each provided with a notch Tn (see FIGS. 6 and 8). This is for passing the plate portion 2P of the leaf spring 2 when the tank cap 100 is detached. Further, the inner wall surface Tri is provided with a slope portion Ts at the lower end thereof (see FIGS. 6 and 8). Furthermore, the inner wall surface Tri is provided with a recess Td at its lower end (see FIGS. 6 and 8). The reason for providing these will be described in detail below.
- FIG. 6 is a diagram showing a situation in which the tank cap 100 is rotated in the “closed” direction.
- FIG. 6A is a perspective view showing a situation where the plate portion 2P of the leaf spring 2 is fitted in the recess Td after moving along the slope portion Ts
- FIG. 6B is a development view showing this situation.
- FIG. 7 is an enlarged view of the region Rb shown in FIG. 6B.
- the arrow A shown in the drawing indicates the moving direction of the plate portion 2P.
- the plate portion 2P when the tank cap 100 is rotated in the “closed” direction during installation, the plate portion 2P starts to rise up the slope portion Ts.
- the slope portion Ts is inclined so as to be gradually separated from the upper wall surface Trt. For this reason, the plate portion 2P is twisted in a state where a part of the plate portion 2P rides on the slope portion Ts (see angle ⁇ 1 shown in FIG. 7). Furthermore, the plate portion 2P is gradually bent as it goes up the slope portion Ts.
- the tank cap 100 is loaded downward by the reaction force of the plate portion 2P (specifically, the force that the leaf spring 2 tries to return to the original position), so that the gasket 4 can be pressed against the upper wall surface Trt of the fuel filler To. it can. That is, the fuel filler port To can be sealed.
- the plate portion 2P is fitted into the recess Td.
- the recess Td is shallowly formed near the top of the slope portion Ts. For this reason, the plate portion 2P is held in contact with the bottom of the recess Td without releasing the reaction force of the plate portion 2P.
- the tank cap 100 is in a state in which the plate portion 2P cannot be easily moved, so that the tank cap 100 can be prevented from rotating in the “open” direction unexpectedly. That is, a lock mechanism can be configured.
- FIG. 8 is a diagram illustrating a situation in which the tank cap 100 is rotated in the “open” direction.
- FIG. 8A is a perspective view showing a situation in which the plate portion 2P of the leaf spring 2 moves along the slope portion Ts after being removed from the recess Td
- FIG. 8B is a development view showing such a situation.
- FIG. 9 is an enlarged view of the region Rc shown in FIG. 8B.
- the arrow A shown in the drawing indicates the moving direction of the plate portion 2P.
- the plate portion 2P is detached from the recess Td.
- the recess Td is formed so shallow that the inclined surface 2PS of the plate portion 2P is not completely hidden. For this reason, the plate portion 2P is twisted in a state in which a part of the plate portion 2P rides on the recess Td (see angle ⁇ 2 shown in FIG. 9). Furthermore, the plate portion 2P is further bent by riding on the recess Td.
- the tank cap 100 is loaded downward by the reaction force of the plate portion 2P (specifically, the force that the leaf spring 2 tries to return to its original state), so that the torque can be increased only at that moment. That is, a sense of moderation can be ensured.
- the first invention is to improve the operability of the tank cap 100 by making a difference between the torque when the tank cap 100 is attached and the torque when the tank cap 100 is removed.
- This can be realized by appropriately setting the rigidity (including bending rigidity and torsional rigidity) of the leaf spring 2 for each rotation direction of the tank cap 100.
- the tank cap 100 is realized by appropriately setting the rigidity when the plate portion 2P starts to rise up the slope portion Ts and the rigidity when the plate portion 2P is removed from the recess Td.
- the leaf spring 2 is rigid when the operator grasps the outer body 1 and starts to rotate in the “closed” direction, and begins to turn in the “open” direction by grasping the outer body 1. Rigidity is different. For this reason, a difference can be made between the torque when the tank cap 100 is attached and the torque when the tank cap 100 is removed. Therefore, the operability of the tank cap 100 can be improved.
- the second invention is to further improve the operability of the tank cap 100 by securing a moderation feeling when the tank cap 100 is removed. This can be realized by providing a recess Td into which the plate portion 2P is fitted when the tank cap 100 is attached. As in the first invention, in the tank cap 100, the rigidity when the plate portion 2P starts to rise up the slope portion Ts and the rigidity when the plate portion 2P is released from the recess Td are appropriately set. Yes.
- the leaf spring 2 has the rigidity when the plate portion 2P starts to rise up the slope portion Ts when the operator grasps the outer body 1 and rotates it in the “closed” direction, and the outer body.
- the rigidity when the plate portion 2P is detached from the recess Td is different. For this reason, a difference can be made between the torque when the tank cap 100 is attached and the torque when the tank cap 100 is removed. Further, it is possible to ensure a moderation feeling when removing the tank cap 100. Therefore, the operability of the tank cap 100 can be further improved.
- the tank cap 100 has a feature that it can be attached with a small force and can be removed with an appropriate force while ensuring a moderation feeling. Therefore, a structure capable of realizing such a feature will be described.
- the torque at the time of removing the tank cap 100 is made larger than the torque at the time of attaching the tank cap 100, so that the tank cap 100 can be attached with a small force.
- a moderation feeling is secured while the tank cap 100 can be removed with an appropriate force. This can be realized by the first to third methods described later.
- the leaf spring 2 has a larger outer rigidity than the rigidity when the plate portion 2P starts to rise up the slope portion Ts when the operator grips the outer body 1 and rotates it in the “closed” direction.
- the rigidity when the plate portion 2P is detached from the recess Td is higher. Therefore, the tank cap 100 can be attached with a small force, and a moderation feeling can be secured while the tank cap 100 can be detached with an appropriate force.
- the leaf spring 2 is attached below the outer body 1 by the two bolts 6 (see FIGS. 1 and 2).
- Each bolt 6 is fastened to the outer body 1 through a bolt hole 2h provided between the center point C of the leaf spring 2 and the plate portion 2P (see FIG. 5).
- an imaginary line passing through the center of the plate portion 2P from the center point C of the leaf spring 2 is defined as a “virtual line L” (see FIG. 5).
- the bolt hole 2h of the leaf spring 2 is provided at a position where a predetermined phase angle ⁇ (0 ° to 80 °) is set in the “open” direction with reference to the virtual line L. For this reason, the following formula is established for the distance D1 ⁇ D2 from the bolt hole 2h to the long side 2Pe of the plate portion 2P (specifically, the point intersecting the slope portion Ts and the concave portion Td in the long side 2Pe). By doing so, the leaf spring 2 has different rigidity depending on the rotation direction.
- the leaf spring 2 has a predetermined phase angle ⁇ in the “open” direction with reference to the imaginary line L passing from the center point C of the leaf spring 2 to the center of the plate portion 2P. It is attached to the outer body 1 at a position. For this reason, although it is a simple structure, when the worker grasps the outer body 1 and rotates it in the “closed” direction, the outer edge 1 is grasped rather than the rigidity when the plate portion 2P starts to rise up the slope portion Ts. When the plate portion 2P is removed from the concave portion Td when rotated in the “open” direction, the rigidity becomes higher.
- the leaf spring 2 according to the present embodiment is designed so that the phase angle ⁇ is 60 °.
- the tank cap 100 provided with the leaf spring 2 is harder when the operator rotates in the “open” direction than when the operator rotates in the “closed” direction.
- the tank cap 100 can be attached with a small force, and a moderation feeling can be secured while the tank cap 100 can be detached with an appropriate force.
- the value (60 °) of the phase angle ⁇ only needs to satisfy the relationship that the distance D2 is larger than the distance D1, and is not limited thereto.
- the inclined surface 2PS is formed on the long side 2Pe of the plate portion 2P (see FIG. 5).
- the inclined surfaces 2PS provided so as to face each other have different depression angles ⁇ 1 and ⁇ 2, and the following mathematical expressions are established.
- the leaf spring 2 has different rigidity depending on the rotation direction.
- the difference in the depression angles ⁇ 1 and ⁇ 2 makes it possible to make a difference in the cross-sectional secondary moment, so that the rigidity varies depending on the rotation direction.
- the leaf spring 2 has the inclined surface 2PS formed on the long side 2Pe of the plate portion 2P, and has a depression angle ⁇ 2 on the “open” side rather than the depression angle ⁇ 1 on the “close” side. Is bigger. For this reason, although it is a simple structure, when the worker grasps the outer body 1 and rotates it in the “closed” direction, the outer edge 1 is grasped rather than the rigidity when the plate portion 2P starts to rise up the slope portion Ts. When the plate portion 2P is removed from the concave portion Td when rotated in the “open” direction, the rigidity becomes higher.
- the leaf spring 2 has a depression angle ⁇ 1 of 45 ° and a depression angle ⁇ 2 of 60 °.
- the tank cap 100 provided with the leaf spring 2 is harder when the operator rotates in the “open” direction than when the operator rotates in the “closed” direction.
- the tank cap 100 can be attached with a small force, and a moderation feeling can be secured while the tank cap 100 can be detached with an appropriate force.
- the values of the depression angle ⁇ 1 and the depression angle ⁇ 2 may satisfy the relationship that the depression angle ⁇ 2 is larger than the depression angle ⁇ 1, and are not limited thereto.
- the inclined surface 2PS is formed on the long side 2Pe of the plate portion 2P (see FIG. 5).
- the respective inclined surfaces 2PS provided so as to face each other have different curvature margins b1 and b2, and the following formula is established.
- the leaf spring 2 has different rigidity depending on the rotation direction.
- the second moment of section can be made different depending on the difference between the bending allowances b1 and b2, the rigidity varies depending on the rotation direction.
- the leaf spring 2 has the inclined surface 2PS formed on the long side 2Pe of the plate portion 2P, and the bending margin on the “open” side rather than the bending margin b1 on the “closed” side. b2 is longer. For this reason, although it is a simple structure, when the worker grasps the outer body 1 and rotates it in the “closed” direction, the outer edge 1 is grasped rather than the rigidity when the plate portion 2P starts to rise up the slope portion Ts. When the plate portion 2P is removed from the concave portion Td when rotated in the “open” direction, the rigidity becomes higher.
- the leaf spring 2 has a bending margin b1 of 2.8 mm and a bending margin b2 of 3.5 mm.
- the tank cap 100 provided with the leaf spring 2 is harder when the operator rotates in the “open” direction than when the operator rotates in the “closed” direction.
- the tank cap 100 can be attached with a small force, and a moderation feeling can be secured while the tank cap 100 can be detached with an appropriate force.
- the values of the music allowance b1 and the music allowance b2 (2.8 mm and 3.5 mm) may satisfy the relationship that the music allowance b2 is larger than the music allowance b1, and are not limited thereto.
- the tank cap 100 is used for a fuel tank T of a diesel engine DE (see FIG. 11).
- the tank cap 100 can be attached with a small force and secures a feeling of moderation while being removable with an appropriate force. Therefore, the commercial value of the diesel engine DE can be improved.
- the present invention can be used for tank cap technology.
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Abstract
Description
アウターボディと、
前記アウターボディに取り付けられるリーフスプリングと、を備え、
前記アウターボディを回すと前記リーフスプリングから延長したプレート部がタンク側のスロープ部に沿って移動するタンクキャップであって、
前記リーフスプリングは、作業者が前記アウターボディを掴んで「閉」方向へ回し始めたときの剛性(曲げ剛性と捻り剛性を含む)と、前記アウターボディを掴んで「開」方向へ回し始めたときの剛性(曲げ剛性と捻り剛性を含む)が異なる、としたものである。
前記アウターボディを「閉」方向へ回すと前記プレート部が前記スロープ部に沿って移動して凹部に嵌まるロック機構を構成し、
前記リーフスプリングは、作業者が前記アウターボディを掴んで「閉」方向へ回したときに前記プレート部が前記スロープ部を上り始める際の剛性と、前記アウターボディを掴んで「開」方向へ回したときに前記プレート部が前記凹部から脱する際の剛性が異なる、としたものである。
前記リーフスプリングは、作業者が前記アウターボディを掴んで「閉」方向へ回したときに前記プレート部が前記スロープ部を上り始める際の剛性よりも、前記アウターボディを掴んで「開」方向へ回したときに前記プレート部が前記凹部から脱する際の剛性のほうが高い、としたものである。
前記リーフスプリングは、該リーフスプリングの中心点から前記プレート部の中央を通る仮想線を基準として、「開」方向へ所定の位相角となる位置で前記アウターボディに取り付けられている、としたものである。
前記リーフスプリングは、前記プレート部の長辺に傾斜面が形成されており、「閉」側の俯角よりも、「開」側の俯角のほうが大きい、としたものである。
前記リーフスプリングは、前記プレート部の長辺に傾斜面が形成されており、「閉」側の曲代よりも、「開」側の曲代のほうが長い、としたものである。
前記アウターボディの内部に取り付けられるインナーボディと、
前記インナーボディの下面に取り付けられるガスケットと、を具備し、
前記インナーボディと前記ガスケットの間に樹脂製シートを配置する、としたものである。
数式:D1<D2
数式γ1<γ2
数式b1<b2
1 アウターボディ
2 リーフスプリング
2P プレート部
2Pe 長辺
2PS 傾斜面
3 インナーボディ
4 ガスケット
5 樹脂製シート
6 ボルト
T 燃料タンク
To 給油口
Ts スロープ部
Td 凹部
C 中心点
L 仮想線
α 位相角
γ1 俯角
γ2 俯角
b1 曲代
b2 曲代
Claims (7)
- アウターボディと、
前記アウターボディに取り付けられるリーフスプリングと、を備え、
前記アウターボディを回すと前記リーフスプリングから延長したプレート部がタンク側のスロープ部に沿って移動するタンクキャップであって、
前記リーフスプリングは、作業者が前記アウターボディを掴んで「閉」方向へ回し始めたときの剛性と、前記アウターボディを掴んで「開」方向へ回し始めたときの剛性が異なる、ことを特徴とするタンクキャップ。 - 前記アウターボディを「閉」方向へ回すと前記プレート部が前記スロープ部に沿って移動して凹部に嵌まるロック機構を構成し、
前記リーフスプリングは、作業者が前記アウターボディを掴んで「閉」方向へ回したときに前記プレート部が前記スロープ部を上り始める際の剛性と、前記アウターボディを掴んで「開」方向へ回したときに前記プレート部が前記凹部から脱する際の剛性が異なる、ことを特徴とする請求項1に記載のタンクキャップ。 - 前記リーフスプリングは、作業者が前記アウターボディを掴んで「閉」方向へ回したときに前記プレート部が前記スロープ部を上り始める際の剛性よりも、前記アウターボディを掴んで「開」方向へ回したときに前記プレート部が前記凹部から脱する際の剛性のほうが高い、ことを特徴とする請求項2に記載のタンクキャップ。
- 前記リーフスプリングは、該リーフスプリングの中心点から前記プレート部の中央を通る仮想線を基準として、「開」方向へ所定の位相角となる位置で前記アウターボディに取り付けられている、ことを特徴とする請求項3に記載のタンクキャップ。
- 前記リーフスプリングは、前記プレート部の長辺に傾斜面が形成されており、「閉」側の俯角よりも、「開」側の俯角のほうが大きい、ことを特徴とする請求項3に記載のタンクキャップ。
- 前記リーフスプリングは、前記プレート部の長辺に傾斜面が形成されており、「閉」側の曲代よりも、「開」側の曲代のほうが長い、ことを特徴とする請求項3に記載のタンクキャップ。
- 前記アウターボディの内部に取り付けられるインナーボディと、
前記インナーボディの下面に取り付けられるガスケットと、を具備し、
前記インナーボディと前記ガスケットの間に樹脂製シートを配置する、ことを特徴とする請求項1から請求項6のいずれか一項に記載のタンクキャップ。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776133U (ja) * | 1980-10-28 | 1982-05-11 | ||
JPH0486312A (ja) * | 1990-07-27 | 1992-03-18 | Toyota Motor Corp | 液体封入用キャップ |
JPH10329557A (ja) * | 1997-06-03 | 1998-12-15 | Kubota Corp | 液体燃料タンク用キャップ |
JP2006224775A (ja) * | 2005-02-16 | 2006-08-31 | Fuji Heavy Ind Ltd | 燃料タンクキャップ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3006594A1 (de) * | 1980-02-22 | 1981-08-27 | Reutter GmbH Metallwarenfabrik, 7050 Waiblingen | Verschlussdeckel fuer einen tank, insbesondere eines kraftfahrzeugs |
KR970035680U (ko) * | 1995-12-30 | 1997-07-26 | 자동차용 안전벨트 | |
KR100521528B1 (ko) * | 1999-12-31 | 2005-10-12 | 현대자동차주식회사 | 연료 필러 캡 |
CN201165195Y (zh) * | 2007-12-28 | 2008-12-17 | 奇瑞汽车股份有限公司 | 一种加油口盖总成 |
-
2014
- 2014-03-19 WO PCT/JP2014/057479 patent/WO2015011946A1/ja active Application Filing
- 2014-03-19 CN CN201480041447.1A patent/CN105408220B/zh not_active Expired - Fee Related
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5776133U (ja) * | 1980-10-28 | 1982-05-11 | ||
JPH0486312A (ja) * | 1990-07-27 | 1992-03-18 | Toyota Motor Corp | 液体封入用キャップ |
JPH10329557A (ja) * | 1997-06-03 | 1998-12-15 | Kubota Corp | 液体燃料タンク用キャップ |
JP2006224775A (ja) * | 2005-02-16 | 2006-08-31 | Fuji Heavy Ind Ltd | 燃料タンクキャップ |
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JPWO2015011946A1 (ja) | 2017-03-02 |
CN105408220A (zh) | 2016-03-16 |
JP6131325B2 (ja) | 2017-05-17 |
CN105408220B (zh) | 2017-05-31 |
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