JP2012141130A - Liquid supply tank, and liquid consuming device such as combustion heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid supply tank of a push button draw-out type, preventing half-lock state where only one pushed side is engaged and disengaged, and demounting a dispensing cap only when both are pushed in.SOLUTION: The liquid supply tank is so constructed that when the dispensing cap 2 is put on a dispensing outlet 3 and pushed down in the axial direction, a locking part 5 is locked on an engaging part 4 by biasing of locking to enter the disengagement preventing state, and at the same time, the locking part 5 is moved in the sinking direction against biasing of locking by pushing a push operating part 7 provided on the outer peripheral surface of the dispensing outlet 3 and disengaged from the engaging part 4 to demount the dispensing cap 2. The dispensing cap 2 is provided with push operating parts 7 opposite to each other, so that only pushing of the push operating part 7 cannot disengage one locking part 5 interlocking with it from the engaging part 4, at least one locking part 5 is disengaged from the engaging part 4 interlocking with pushing of both push operating parts 7, and only disengagement of both locking parts 5 from the engaging part 4 by pushing of both push operating parts 7 enables the dispensing cap 2 to be demounted from the dispensing outlet 3.

Description

  The present invention relates to a liquid supply tank in a liquid consuming device such as a combustion heater or a humidifier.

  In general, liquid supply tanks used for liquid consumption devices such as combustion heaters and humidifiers are placed detachably upside down on the liquid receiving surface, for example, and the liquid receiving surface is lowered as the liquid is consumed such as combustion and vaporization. It is used as a cartridge-type liquid supply tank in which air bubbles are automatically introduced into the tank and the liquid in the tank is supplied through a discharge mechanism of a discharge cap provided at the discharge port.

  For example, a cartridge-type oil supply tank that supplies fuel oil such as kerosene has a metal outlet (tank base) protruding from the top of the metal tank body, and a dispensing mechanism equipped with a valve mechanism Place the pouring cap (oil filler cap) provided with an inversion state and place it on the oil pan (on the oil receiving surface) with the pouring mechanism opened by the pin-shaped part that is the valve opening action part. Then, when the fuel oil is consumed by combustion and the liquid level of the oil receiving tray is lowered, the fuel oil in the tank is poured out and supplied by the amount of bubbles while the bubbles are introduced into the tank through the pouring mechanism.

  When refilling the tank, take out the cartridge-type oil tank from the equipment, remove the spout cap from the spout, and fill the tank with fuel.

  The pouring cap attached to the pouring port of such a liquid supply tank has a structure in which the pouring cap is screwed onto a screw portion provided on the outer periphery of the pouring port. That is, the pour cap is removed by turning and attached by turning.

  In particular, in the case of such a configuration, as described above, since the liquid is placed on the liquid receiving surface in an inverted state via the pouring mechanism to supply the liquid, the pouring cap is easy to get dirty, and a hand is required when removing the pouring cap. I was worried about getting dirty.

  For this reason, various proposals have been made, for example, when the lever is pulled, the closing cap is released by spring bias, or a grip outer periphery is further added around the pouring cap.

  The applicant does not need to turn the handle and touch the extra part as much as possible. A non-threaded push button single-handed extraction cap has been developed that can be attached simply by pushing it over and can be easily removed by simply pushing the push operation part.

JP 2005-195195 A

  In the present invention, in the development of the push button single-handed take-out type cap, the trial and error is further repeated, and the discharge cap is securely locked and unlocked with one touch, and a simple push operation is performed. However, if you do not press both of the two or more push operation parts, the dispensing cap will not come off. Conversely, if you push both, you can remove and remove the dispensing cap smoothly. It is possible to prevent unsettled and unstable conditions (half-lock), etc., and to demonstrate various practical breakthrough effects. The purpose is to provide liquid consumption equipment such as machines.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A spout cap 2 provided with a spout mechanism 10 is detachably provided at a spout 3 projecting in a cylindrical shape on the tank body 1, and an engaging portion 4 provided on the outer peripheral surface of the spout 3 is provided. A locking portion 5 that protrudes and retracts on the inner peripheral surface of the outlet cap 2 and is detachably locked to the engaging portion 4 so that the dispensing cap 2 is prevented from being detached in the locked state; The latching urging portion 6 that urges the latching portion 5 in the protruding direction and urges the latching portion 5 and the latching portion 5 is submerged against the latching urging force of the latching urging portion 6. A locking mechanism 8 comprising a pushing operation portion 7 provided on the outer peripheral surface of the extraction cap 2 that is moved in the moving direction to release the locking state with the engaging portion 4 is provided. Is inserted into the spout 3 and pushed down in the axial direction of the spout 3, so that the locking portion 5 is locked to the engaging portion 4 by the locking bias of the locking biasing portion 6. Pull out On the contrary, when the pushing operation portion 7 provided on the outer peripheral surface of the spout 3 is pushed, the locking portion 5 moves in the sinking direction against the locking bias, and the engaging portion 4 is a liquid supply tank configured to be disengaged from 4 and to be able to remove the pouring cap 2 from the pouring port 3, wherein the locking portion 5 locked to the engaging portion 4 is arranged in an opposed state or at intervals in the circumferential direction. A plurality of the pouring caps 2 are provided so as to protrude and retract inwardly from the inner peripheral surface of the pouring cap 2, and the pushing operation portions 7 are arranged on the outer peripheral surface of the pouring cap 2 in the circumferential direction with an opposing state or at intervals. The engaging portion 5 is disposed in an exposed state, and the engaging portion 5 is disposed between the plurality of pushing operation portions 7, and one side of the pushing operation portion 7 is adjacent on one side. Each of the locking portions 5 is connected to the locking portion 5 and connected to the locking portion 5 adjacent to the other side on the other side. In this configuration, one side of each of the adjacent different push operation parts 7 is connected to each other, and when only one of the push operation parts 7 is pushed, the driving force for moving in the sag direction is transmitted to both the locking parts 5. However, when both of the locking portions 5 are not engaged with and disengaged from the engaging portion 4 and the both pressing operation portions 7 are pushed, the locking portions 5 are pushed by the different pushing operation portions 7. The one driving operation unit is configured such that the driving force is transmitted and the driving force of each pressing operation unit 7 cooperates with the driving force so that both the locking parts 5 are disengaged from the engaging unit 4. 7 is not engaged with or disengaged from the engaging portion 4 when the pushing operation portion 7 is pushed. Power is transmitted and cooperates so that the two or more locking portions 5 are disengaged from the engaging portion 4 and at least the two or more locking portions 5 are engaged. The locking mechanism 8 is configured so that the discharging cap 2 cannot be removed from the spout 3 unless the locking portion 5 is engaged with or disengaged from the engaging portion 4 by the pushing of the two or more pushing operation portions 7. The present invention relates to a liquid supply tank that is configured.

  Further, a spout cap 2 provided with a spout mechanism 10 is detachably provided at a spout 3 projecting in a cylindrical shape on the tank body 1, and an engaging portion 4 provided on the outer peripheral surface of the spout 3; A locking portion that protrudes and retracts on the inner peripheral surface of the dispensing cap 2 and is detachably locked to the engaging portion 4 and keeps the dispensing cap 2 in a locking state in the locked state. 5, a latching biasing portion 6 that biases and latches the latching portion 5 in the protruding direction, and the latching portion 5 against the latching bias of the latching biasing portion 6. Is provided with a locking mechanism 8 comprising a pushing operation portion 7 provided on the outer peripheral surface of the extraction cap 2 for releasing the locking state with the engaging portion 4 by moving the lever in the sinking direction. The cap 2 is fitted on the spout 3 and is pushed down in the axial direction of the spout 3, so that the engaging portion 5 is engaged with the engaging portion 4 by the engaging urging force of the engaging urging portion 6. Stop On the contrary, when the pushing operation portion 7 provided on the outer peripheral surface of the spout 3 is pushed, the locking portion 5 moves in the sinking direction against the locking bias. A liquid supply tank configured to be disengaged from the joint portion 4 and to be able to remove the pouring cap 2 from the spout 3, wherein the locking portion 5 locked to the engaging portion 4 is opposed or spaced apart. A plurality of circumferentially extending and projecting caps 2 are provided so as to protrude and retract inward from the inner peripheral surface of the dispensing cap 2, and a plurality of the pushing operation parts 7 are opposed to each other or spaced apart from each other. The push operation unit 7 is disposed in an exposed state on the surface, and is provided with an interlocking transmission unit 11 that moves as the push operation unit 7 is pushed inward and is coupled to the locking unit 5. The transmission unit 11 is connected to the interlocking transmission unit 11 when the push operation unit 7 is pushed. It is configured that the immersing power to be moved in the sag direction is transmitted to the locking part 5 to which the moving transmission part 11 is connected, and the locking part 5 is disposed between the plurality of push operation parts 7. The interlocking transmission part 11 provided on one side of the push operation part 7 is connected to the adjacent locking part 5 on one side, and the interlocking transmission part 11 provided on the other side is connected to the other side. Are connected to the adjacent locking portions 5, and each locking portion 5 is connected to one of the interlocking transmission portions 11 provided on the adjacent different pressing operation portions 7. When only the portion 7 is pushed, the motive power for moving in the direction of sag is transmitted to the both locking portions 5 via the interlocking transmission portions 11 on both sides, but both the locking portions 5 are also engaged. When the two push operation parts 7 are pushed without being disengaged from the part 4, the different push operation parts 7 are connected to the respective locking parts 5. The immersing power is transmitted through the one-side interlocking transmission portion 11, and the motive power due to the pushing operation of each pushing operation portion 7 cooperates, so that both the locking portions 5 are engaged with the engaging portion 4. The engaging portion 5 that is configured to be detached from the engaging portion 4 is not disengaged from the engaging portion 4 only by the pushing of the one pushing operation portion 7, and the two or more pushing operation portions 7 are engaged. And the two or more locking portions 5 are engaged with and disengaged from the engaging portion 4 in cooperation with each other, and the at least two locking portions 5 are engaged with and disengaged from each other. The locking mechanism 8 prevents the dispensing cap 2 from being removed from the spout 3 unless the locking portion 5 is engaged with or disengaged from the engaging portion 4 by the pushing of the two or more pushing operation portions 7. The liquid supply tank according to the present invention is configured.

  In addition, the two push operation parts 7 are provided in an exposed state at positions where the fingertips on the outer peripheral surface of the dispensing cap 2 can be pushed inward by different fingertips. The engaging portions 5 are arranged in an opposing manner so as to protrude inward from the inner peripheral surface of the pouring cap 2 so as to be disposed between each other, and the two push operation portions 7 are connected to the left and right of the interlocking portion 5 respectively. The transmission portions 11 are provided in an opposing state, and the left and right interlocking transmission portions 11 provided in the push operation portions 7 are respectively connected to the adjacent locking portions 5, and the locking portions 5 are adjacent to each other. 3. The liquid supply tank according to claim 2, wherein each of the push operation sections is connected to the interlocking transmission section provided on one side.

  In addition, the push-out operation portion 7 provided on the left and right end portions of the pumping cap 2 formed in a cylindrical shape in a symmetrical state is symmetrical with the push button surface exposed from the outer peripheral surface. The locking portion 5 is provided in a symmetrical state with the inner end portion 5A protruding from the inner peripheral surface so as to be disposed between the push operation portions 7, and both end portions of the locking portions 5 are provided. The interlocking transmission part 11 on one side of each of the different push operation parts 7 is connected to both ends of the connection part 9 provided in a symmetrical state or the connection part 9 provided in each locking part 5 The locking mechanism 8 has a symmetric structure so that the immersion power is transmitted to each locking portion 5 by the pushing of each push operation portion 7 and the immersion power is evenly transmitted. Even if only the operating portion 7 is pushed, at least one end portion of each locking portion 5 is not yet detached from the engaging portion 4, By pushing both of the pushing operation parts 7, the equivalent immersion power is transmitted to each locking part 5, and both end parts of each locking part 5 are engaged and disengaged from the engaging part 4. 4. The liquid supply tank according to claim 3, wherein the pumping cap 2 can be removed from the pouring port 3 only after both the pushing operation portions 7 are pushed.

  Further, the interlocking transmission portion 11 provided in the push operation portion 7 and the connection portion 9 provided in the locking portion 5 are connected to each other by the inward movement of the push operation portion 7. An engagement configuration of the cam groove 12 and the cam pin 13 that converts the locking portion 5 into a movement in the reverse outward direction of the reverse movement by the inward movement of the portion 11 to generate the immersion power. The liquid supply tank according to any one of claims 2 to 4, wherein the connection is made by the moving direction conversion connecting mechanism 14 described above.

  Further, fuel oil is supplied from the spout 3 from which the spout cap 2 has been removed, and the spout cap 2 is fitted and locked to the spout 3 and is placed upside down on the oil receiving surface 24. 6. The cartridge-type oil supply tank configured to supply fuel oil to the oil receiving surface 24 through the extraction mechanism 10 provided in the extraction cap 2, according to claim 1. It concerns the liquid supply tank.

  Further, the present invention relates to a liquid consuming device such as a combustion heater, wherein the liquid supply tank according to any one of claims 1 to 6 is detachably provided.

  Since the present invention is configured as described above, the dispensing cap can be securely locked and unlocked with a single touch, and both of the two or more push operation parts are pushed by a simple push operation. If it is not, the dispensing cap will not come off, and if you push it in reverse, the dispensing cap can be smoothly detached and detached, and only the one side that is pushed in will be detached and become unstable (half lock). Even if only one side is pressed due to impact or pressure difference, or if the other side is not fully pressed by mistake, an unstable state such as a half lock that is engaged / disengaged only on one side is unlikely to occur. It becomes an epoch-making liquid supply tank excellent in practicality, such as being able to be removed smoothly for the first time by pushing the push operation part.

  In the inventions of claims 2, 3, 4 and 5, the present invention can be easily realized with a simple configuration, and the dispensing cap can be easily attached and detached with one hand. Even if only one side is pressed or the other side is not fully pressed, only one side will not come off, and the locking part will be disengaged only when both pressing operation parts are fully pressed. The output cap can be removed, and a half-lock is hardly generated, and the present invention excellent in mounting performance can be easily realized.

  Further, in the invention described in claim 6, it becomes a cartridge type oil supply tank that exhibits the above-described effects and is extremely practical.

  Moreover, in invention of Claim 7, it becomes liquid consumption apparatuses, such as an epoch-making combustion heater provided with the above-mentioned liquid supply tank.

It is a description perspective view of the use condition of a present Example. It is the explanation perspective view which notched a part of the pouring cap in the state where the pouring cap was removed from the pouring port of this example. It is a description disassembled perspective view which shows the cap main body and cap outer periphery grip part of the extraction | pouring cap of a present Example. It is a description disassembled perspective view of the extraction | pouring cap of a present Example. It is an explanation front sectional view in the state where a pouring cap was removed from a pouring port of this example. It is a description front sectional drawing in the middle of attaching the extraction cap to the injection outlet of a present Example, just before a latching part falls and engages with an engaging part. It is explanatory front sectional drawing of the state (locking state) which attached the extraction | pouring cap to the present Example. It is explanatory front sectional drawing in the use condition mounted in the inverted state on the liquid receiving surface (liquid receiving tray part) of a present Example. It is a latching | locking part action | operation description top view which shows the latching | locking part in the latching state of a present Example. It is a latching | locking part action | operation description top view which shows the latching | locking part in the engagement / disengagement state by pushing operation of a present Example. It is a latching | locking part action | operation description top view which shows the latching | locking part of a latching state, without being half-locked even if the one push operation of a present Example is carried out. Locking portion operation explanation showing the operation of the locking portion of the pouring cap with respect to the spout indicating that the pouring cap is pushed down from the position where the pouring cap is temporarily applied to the pouring port of the present embodiment to the locking position. It is sectional drawing. It is a description top view of the latching | locking part which has a metal part of a present Example. It is explanatory perspective view which notched some locking parts which have a metal part of a present Example. The sliding surface position of the connecting portion of the locking portion of this embodiment and the interlocking transmission portion of the push operation portion is set to be higher than the upper end of the protruding port from which the inner end portion of the locking portion protrudes. FIG.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  As shown in FIGS. 1 to 4, after supplying the liquid into the tank body 1 from the spout 3 with the spout cap 2 removed, the spout cap 2 is fitted into the spout 3 and the shaft of the spout 3 is fitted. When pushed down in the direction, the inner end portions 5A of the plurality of locking portions 5 are moved together with the pouring cap 2 along the outer peripheral surface of the pouring port 3, and are locked when the pouring cap 2 is pushed down to the locking position. The inner end portion 5A of the locking portion 5 is automatically depressed and locked to the engaging portion 4 provided on the outer peripheral surface of the spout 3 by the locking biasing force of the biasing portion 6, for example. When the locking part 5 and the engaging part 4 are in a locked state, the pouring cap 2 is attached to the spout 3 in a retaining state.

  Conversely, when removing the dispensing cap 2 from the dispensing port 3, the locking mechanism 8 is released and the dispensing cap 2 is taken out from the dispensing port 3. The locking part 5 is moved in the sag direction against the locking bias and is disengaged from the engaging part 4.

  That is, when the pushing operation portion 7 provided on the outer peripheral surface of the pouring cap 2 is pushed inward with a finger of one hand, for example, the locking portion 5 is moved in the moving direction in conjunction with the movement direction changing coupling mechanism 14 described later. And the inner end portion 5A of the locking portion 5 moves in a direction in which the inner end portion 5A is moved away from the engaging portion 4 (against the protruding bias (locking bias) of the locking biasing portion 6). When it is moved) the lock is released.

  At this time, according to the present invention, the push operation part 7 is disposed in an exposed state on the outer peripheral surface of the plurality of the extraction caps 2 in the circumferential direction at an opposed state or at an interval, and only one push operation part 7 is pushed. One locking portion 5 that is interlocked with this does not move in the direction of movement from the engaging portion 4 to the position where it is disengaged, and at least one locking portion 5 is interlocked by the pressing of two or more push operation portions 7. Then, it moves in the retracting direction from the engaging portion 4 to the position where it is engaged / disengaged, and at least two locking portions 5 must be disengaged from the engaging portion 4 by the pushing of the two or more pushing operation portions 7. For example, the pouring cap 2 cannot be removed from the pouring port 3.

  Therefore, in the present invention, only the one-side engaging portion 5 is released by the pushing operation of the one-side pushing operation portion 7, and only one side is released so that the other half-locking in the locked state does not occur.

  That is, when only the push operation unit 7 on one side is pushed, or the push force of the finger is not equal, for example, the push operation unit 7 is pushed sufficiently with the index finger, and the push operation unit 7 is pushed with the thumb. As described above, if each locking operation unit 7 is configured so that one locking unit 5 is interlocked with one pressing operation unit 7 independently of each other as usual, the pressing operation unit 7 that has been sufficiently pressed as described above, Only the interlocking locking portion 5 is disengaged and the other locking portions 5 remain locked, and half-locking is easily caused. Since the dispensing cap 2 has a mounting clearance, it can be tilted slightly. In general, there is a mounting elasticity by packing etc. Unless the fingers are pushed in at the same time, an unstable state such as a half lock easily occurs.

  On the other hand, in the present invention, when one pushing operation portion 7 is pushed, not only one but also two or more locking portions 5 are interlocked with each other to move in the sunk direction. ) Is transmitted. In addition, the one locking portion 5 is configured to move in the sinking direction against the locking biasing force of the locking biasing portion 6 in conjunction with two or more push operation portions 7, and Even if one push operation part 7 is pushed, each latching part 5 does not move sufficiently (it does not move to the extent that it is disengaged from the engagement part 4), and when two or more push operation parts 7 are pushed. For the first time, each pushing force is transmitted to each locking portion 5 in cooperation with each other, and the locking portion 5 is configured to be disengaged from the engaging portion 4 for the first time.

  To repeat the description more easily, for example, the case where the push operation portion 7 is provided at two opposing positions as in the present embodiment described later, and the locking portion 5 is provided at two opposing positions so as to be adjacent thereto is also described. The two push operation parts 7 are sandwiched between the thumb and index finger of one hand and both are pushed in and taken out as they are. However, as usual, there is only one locking part 5 corresponding to one push operation part 7. In conjunction with this, it is configured such that when the push operation portion 7 is pushed, the corresponding locking portion 5 is moved in the moving direction through the moving direction conversion coupling mechanism 14 and is disengaged from the engaging portion 4. If only one side is pushed, or only one side is sufficiently pushed and the pushing force on the opposite side is insufficient, half-locking in which only the locking part 5 on one side is released easily occurs.

  In contrast, in this embodiment, as shown in FIGS. 9 to 11, for example, one interlocking transmission on the side of the locking portion 5 provided in each locking portion 5 and each pressing operation portion 7 adjacent thereto. When the parts 11 are connected to each other by the moving direction conversion connecting mechanism 14 and one of the pushing operation parts 7 is pushed, both of the adjacent locking parts 5 move in the sinking direction. Only when the pushing portions 7 are not moved sufficiently, the respective locking portions 5 do not move away from the engaging portions 4, and when both pushing operation portions 7 are pushed sufficiently at the same time, each of the locking portions 5 does not receive this force for the first time. It cooperates so as to assist, and it is configured to move sufficiently in the sinking direction and disengage from the engaging portion 4.

  Further, for example, as in the embodiments described later, the inner end portion 5A that is locked to the engaging portion 4 of the locking portion 5 has a lateral shape, and even if one of the push operation portions 7 is pushed, Only one side of the inner end 5A of the part 5 moves in the sinking direction as it is disengaged from the engaging part 4, but the opposite side is not yet detached from the engaging part 4 due to the lateral width, and the other pushing operation part 7 The force is transmitted evenly when the two are simultaneously pushed, and the opposite side of the inner end 5A is sufficiently moved in the sinking direction so that all parts of the inner end 5A are disengaged from the engaging portion 4 and are disengaged. You may comprise so that it may do.

  As described above, in the present invention, when the two or more push operation portions 7 are moved, the two or more locking portions 5 are disengaged and the locking portions 5 are disengaged from the engaging portion 4. That is, two or more locking portions 5 are moved in the direction of sag by one push operation portion 7 being pushed, and two or more push operation portions 7 are pushed against one lock portion 5. By constructing this to cooperate and move in the direction of sinking, there is a clearance for fitting the pouring cap 2 into the pouring port 3, and even if this clearance varies, half-locking occurs extremely. It is difficult to prevent half-locking, and the mounting performance is greatly improved.

  As shown in FIGS. 5 to 7, for example, when the pouring cap 2 is attached, from the position of the straight drooping upper end peripheral surface 21 of the pouring port 3 where the pouring cap 2 is fitted and temporarily attached to the pouring port 3. The taper 3 is moved while the locking portion 5 is moved in the sinking direction against the locking urging force of the locking urging portion 6 along the tapered peripheral surface 22 where the outer peripheral surface of the spout 3 gradually increases in diameter. The engaging portion 5 is projectingly engaged (locked) by the protruding urging force of the locking urging portion 6 to the engaging portion 4 (falling peripheral surface) which is provided at the lower end of the peripheral surface 22 and is rapidly reduced in diameter. If the taper peripheral surface 22 is configured to be gently long, the tentative position where the spout cap 2 is fitted on the spout 3 and the locking position (lock position) locked to the engaging portion 4 are provided. As long as this becomes longer and clearer, the longer it is, the longer it can be visually confirmed whether it is locked or not. In addition, by increasing the amount of depression of the engaging portion 4, a locking sound such as a clapping sound (locking locking sound) sounds greatly, and the wearing feeling is also good, and it is easy to judge whether to attach or detach in terms of sound. It becomes.

  In addition, if configured in this way, as described above, it is difficult to release even by insufficient one-side pressing and it is difficult to be half-locked, so that the mounting performance is further improved, and for example, when mounting (in the locked state) If it is configured such that the urging force (returning urging force upward) is generated in the pouring cap 2 with respect to the spout 3 by the elastic force provided at the position of the pouring mechanism 10 (elastic force due to elastic contact by the packing or the like). Only when the pushing operation parts 7 are pushed sufficiently at the same time instead of one side, the respective locking parts 5 are disengaged from the engaging parts 4 at the same time, and as a result, the upper end is moved upward by the upward bias of the upper end. In addition, when the position of the maximum convex portion at the lower end of the tapered peripheral surface 22 is exceeded, the upward movement is promoted by the downward taper upward and the pressing force applied thereto by the locking urging portion 6, and the lifting is removed. Produces a clear pop-out feeling when removed It can be easily configured to be twisted.

  Specific embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 4, the pin-shaped portion 26, which is the valve-opening action portion described above in the conventional example, is inserted into the metal spout 3 projecting cylindrically from the metal tank body 1. A spout cap 2 provided with a spout mechanism 10 that opens the valve portion 27 inwardly against the spring bias is detachably fitted, and the spout 3 is abruptly attached to the outer peripheral surface of the spout 3. The engaging portion 4 provided on the entire circumference as a small-diameter portion that falls into the outer periphery and the protruding urging force of the locking urging portion 6 from the protruding port 15 on the inner peripheral surface of the dispensing cap 2 are projected and retracted. The engaging portion 4 is detachably engaged with the engaging portion 4 and in the locked state, the locking portion 5 keeps the dispensing cap 2 in a state of being prevented from coming off, and the locking portion 5 is urged in the protruding direction to be locked. The locking urging portion 6 to be urged, and the locking portion 5 is moved in the retracting direction against the locking urging force of the locking urging portion 6 to be locked with the engaging portion 4 Release A locking mechanism 8 comprising a pushing operation portion 7 provided on the outer peripheral surface of the pouring cap 2 to be fitted, and the pouring cap 2 is fitted on the pouring port 3 in the axial direction of the pouring port 3 By pushing down, when the locking portion 5 is urged by the locking urging portion 6, it moves along the outer peripheral surface of the spout 3 and reaches the engaging portion 4. The protrusion is biased so as to prevent it from coming off, and conversely, the pushing operation portion 7 provided on the outer peripheral surface of the spout 3 is pushed against the anti-contraction spring 28 to On the contrary, the locking portion 5 moves in the sinking direction, is disengaged from the engaging portion 4, and can be removed from the spout 3.

  The locking portions 5 to be locked to the engaging portions 4 are not limited to two in the circumferential direction but are provided on the three or four extraction caps 2 at intervals, and the push operation portion 7 is also spaced. Although not limited to two in the circumferential direction, three or four may be provided, but in this embodiment, two locking portions 5 and two push operation portions 7 are provided in opposed states and alternately arranged in the circumferential direction. These are connected so that the locking portion 5 is interlocked with the pushing of the push operation portion 7.

  That is, the push operation unit 7 is exposed on the outer peripheral surface of the dispensing cap 2 and provided in an opposed state, and the locking unit 5 is disposed in an opposed state so as to be disposed between the two push operation units 7. The dispensing cap 2 is provided so as to protrude inward from the inner peripheral surface.

  And it is comprised so that not only one latching part 5 but both latching parts 5 may move to a squeezing direction by the pushing of one pushing operation part 7, and only pushing of this one pushing operation part 7 is carried out. Then, any of the locking portions 5 that are linked to this does not move in the direction of sag until the position where the locking portions 5 are disengaged from the engaging portion 4, but each locking portion is moved when both the push operation portions 7 are pushed. The force (immersion power) for moving the locking portion 5 in the sinking direction due to this pushing motion is equally transmitted to each 5, and this is cooperated (added) with each locking portion 5 respectively. The stop portion 5 moves in the retracting direction so as to be disengaged from the engaging portion 4 for the first time by pressing both the pressing operation portions 7 at the same time, and both the locking portions 5 are moved to both the pressing operation portions 7. The extraction cap 2 cannot be pulled out from the outlet 3 unless it is disengaged from the engaging portion 4 by pushing.

  More specifically, as shown in FIGS. 9 to 11, the interlocking transmission portion 11 that moves in accordance with the pushing operation of the push operation portion 7 is integrally formed on both the left and right sides of the push operation portion 7 for resin molding. The push operation portions 7 are supported by the anti-contraction springs 28, and the interlocking transmission portions 11 integrally formed on the left and right sides of the one push operation portion 7 are connected to the connecting portions 9 of the different locking portions 5. It is configured to be connected to one of the left and right, and to push the push operation portion 7 so that the driving force is transmitted to the left and right engaging portions 5 via the interlocking transmission portion 11, respectively. The linking transmission portions 11 on one side projecting from the different push operation portions 7 are connected to the connection portions 9 of the five.

  Accordingly, as described above, even when only one push operation portion 7 is pushed, the locking portion 5 is not disengaged from the engagement portion 4, and each push operation portion 7 is simultaneously pushed. This immersion power is transmitted via the interlocking transmission portion 11 so as to be combined with the respective locking portions 5, and both the locking portions 5 are engaged only when both pressing operation portions 7 are pushed simultaneously. It is configured to be disengaged from the joint portion 4.

  More specifically, in this embodiment, the pouring caps 2 are provided at both left and right ends of each push operation portion 7 so that the immersing power transmitted to the locking portion 5 by the push of both push operation portions 7 is equal to each other. The interlocking transmission part 11 is provided in a projecting state so as to be along the circumferential direction, and this push operation part 7 is provided in a symmetrical state with the push button surface exposed from the window 18 of the dispensing cap 2. The locking portion 5 is provided in a symmetrical state with the inner end portion 5A protruding from the protruding port 15 on the inner peripheral surface so as to be disposed between the push operation portions 7. The interlocking transmission portion 11 on one side of each of the different push operation portions 7 is connected to the left and right end portions of the connection portion 9 on the back portion of the 5 so that the locking mechanism 8 has a symmetrical structure, and each push operation portion 7 The immersion power transmitted to each locking portion 5 by the pushing movement is equalized.

  That is, it connects with one interlocking transmission part 11 toward the engaging part 5 of the pushing operation part 7 adjacent to the left and right ends of the connecting part 9 provided on the back of one engaging part 5 on each side. The two interlocking transmission parts 11 extending from the two pushing operation parts 7 toward the latching part 5 are connected to the two locking parts 5, respectively, and the interlocking transmission part 11 and the locking part are connected to each other. The connecting portion 9 is defined by the inward movement direction of the engaging portion 5 in the reverse direction by the inward movement of the interlocking transmission portion 11 by the inward movement of the push operation portion 7. The cam groove 12 and the cam pin 13 that convert to the movement of the cam pin 13 are connected via a moving direction conversion connecting mechanism 14. In the present embodiment, cam grooves 12 that are inclined with respect to the projecting and retracting direction are formed in the left and right upper surfaces of the connecting portion 9 at the back of each locking portion 5, and the interlocking transmitting portion that overlaps the upper surface of the connecting portion 9. A cam pin 13 that is inserted into the cam groove 12 and engages slidably is provided vertically at the tip of 11.

  Further, in this embodiment, the inner end portion 5A that is locked to the engaging portion 4 of the locking portion 5 has a lateral shape, and even if one of the pushing operation portions 7 is pushed, Only one side of the inner end 5A moves in the sinking direction as it is disengaged from the engaging portion 4. However, because of the lateral width, the opposite side has not yet been disengaged from the engaging portion 4, and the other push operation portion 7 is simultaneously moved. Only when it is pushed, the opposite side of the inner end 5A is also sufficiently moved in the sinking direction so that all portions of the inner end 5A are disengaged from the engaging portion 4 and are disengaged.

  Therefore, as shown in FIG. 11, even if only one push operation portion 7 is pushed, one end portion of each locking portion 5 still protrudes without being disengaged from the engaging portion 4, and FIG. As shown in the figure, by pressing both of the push operation portions 7 simultaneously, the respective engaging portions 5 cooperate with each other so that the immersion power assists equally, and both the end portions of each engaging portion 5 are in the engaging portions. The dispensing cap 2 is configured to be able to be removed from the dispensing port 3 only when the two pushing operation portions 7 are pushed and disengaged from the dispensing port 4.

  On the other hand, the shape of the outer peripheral surface of the spout 3 of the present embodiment is as shown in FIGS. 5 to 8, when the protruding direction in the axial direction of the spout 3 is up and the in-tank direction is down. A taper peripheral surface 22 that gradually increases in diameter toward the lower side is connected to a straight suspended upper end peripheral surface 21 on which the extraction cap 2 is placed and temporarily fitted and supported, and a diameter is rapidly increased at the lower end of the taper peripheral surface 22. As shown in FIG. 12, the lowering peripheral surface 4 as the engaging portion 4 that is small is continuously provided, and the locking portion 5 is positioned at the lower end of the tapered peripheral surface 22 just before falling into the lowering peripheral surface 4. In this case, the cap inclination preventing peripheral surface 23 with which the inner peripheral surface below the locking portion 5 of the dispensing cap 2 abuts is set to an outer peripheral surface shape continuously provided at the lower end of the sagging peripheral surface 4.

  In the present embodiment, the tapered peripheral surface 22 is formed to be gently long, and a temporary position where the spout cap 2 is simply fitted on the spout 3 and a locked position (lock position) where the spout 3 is locked. ) And the vertical distance is clear and long, and it can be visually confirmed whether it is in a locked state at a glance (it is easy to visually determine whether it is in a locked state), and the depth of the engaging portion 4 That is, by increasing the amount of depression of the locking portion 5, a locking sound (locking locking sound) such as a clapper is generated greatly, a feeling of wearing is improved, and attachment / detachment determination by sound is facilitated.

  More specifically, as shown in FIG. 8, the dispensing cap 2 is a metallic cylindrical portion 20 formed of a cap-shaped inner peripheral surface that fits and contacts the outer peripheral surface of the spout 3. The above-described opening mechanism is closed by the pouring mechanism 10, and as described above, the pouring mechanism 10 is inserted into the pouring path by the pin-like portion 26 so that the valve portion 27 is inserted against the spring bias. Is formed in a valve-opened state, and the inner end portion 5A to be engaged with the engaging portion 4 is protruded from the projecting port 15 provided on the inner peripheral surface, and the engaging portion 5 is projected and retracted. A storage portion 19 that is freely arranged includes a cap body 16 provided with a folded flange portion around the lower end of the metal cap-shaped cylindrical portion 20, and a push button surface of the push operation portion 7. This cap consists of a cap outer periphery grip 17 provided in a spring-supported state exposed from a window 18 provided on the outer peripheral surface. The cap outer periphery grip portion 17 is fitted to the cap body 16 and is assembled so that the cam groove 12 and the cam pin 13 of the moving direction changing coupling mechanism 14 are engaged with each other. The locking portion 5 is assembled so as to move in the sinking direction.

  More specifically, as shown in FIG. 4, the cap main body 16 is provided with the locking portion 5 attached to the entire lower end of a metal cylindrical portion 20 provided with the cap-shaped dispensing mechanism 10. The storage portion 19 made of metal is integrally formed as a portion, and the locking portion 5 is placed and stored in the storage portion 19 so as to protrude and retract in the inner direction.

  Specifically, the two locking portions 5 integrally molded with a resin having good lubricity are placed and stored in the storage portion 19 in an opposed state so that the inner end portion 5A protrudes from the protruding port 15, In this storage part 19, the latching | locking part 5 is comprised so that it may be comprised in the slightly long shape of a curve, and it may be accommodated so that the cylindrical part 20 may be enclosed.

  That is, the inner end portion 5A of the locking portion 5 placed and stored in the storage portion 19 is provided so as to protrude inward from a protruding port 15 provided at the lower end of the cylindrical portion 20, and the locking portion 5 The metal urging urging portion 6 employing a coil spring so as to be pushed inwardly from the back portion of the housing is housed in the housing portion 19 together with the latching portion 5, and the inner end portion 5A of the latching portion 5 is housed inside. It is configured to project and urge toward the projecting state.

  Therefore, the cap main body 16 is made of a cap-shaped metal part composed of the cylindrical portion 20 and the storage portion 19, a resin-made locking portion 5 made of a material having good lubricity, and a metal-made locking biasing portion 6. And is configured to accommodate.

  Furthermore, in this embodiment, as shown in FIGS. 13 and 14, the sliding which is in sliding contact with the outer peripheral surface of the extraction cap 2 of the locking portion 5 and is also in sliding contact with the support surface of the storage portion 19. The locking portion 5 itself is made of resin so that the inner end portion 5A and the bottom surface as the contact portion are made of resin having good lubricity, and the sliding contact portion is made of resin, so that the protrusion and subtraction and engagement / disengagement are also possible. However, even if the resin portion is damaged by heat, it is configured as follows to ensure a locked state.

  That is, the cap body 16 is made of metal, and the inner end portion 5A that engages with the engaging portion 4 of the locking portion 5 is inserted at least the portion that contacts the engaging portion 4, and the metal portion 5K is inserted. The resin portion is formed by resin molding so that the metal portion 5K is covered with the resin portion to form a resin portion, and the locking portion 5 urged in the protruding direction by the metal locking urging portion 6 provided on the metal cap body 16 The metal portion 5K of the inner end portion 5A is configured to be engaged with the engagement portion 4 provided on the outer peripheral surface of the metal spout 3 via the resin portion.

  That is, in this embodiment, the plate-shaped metal portion 5K is insert-molded, and the sliding contact portion of the inner end portion 5A of the locking portion 5 (the locking tip when locking with the engaging portion 4) is made of resin. The metal portion 5K is disposed in the resin portion at the locking position with the engaging portion 4, and the metal portion 5K is configured to be pressed and urged by the locking urging portion 6, and the resin portion Even if it is damaged or melted by heat, this locked state is configured to be ensured only by the remaining metal parts configuration.

  Specifically, when the locking portion 5 is resin-molded, a metal plate is insert-molded as a metal portion 5K into a part of the portion constituting the inner end portion 5A locked to the engaging portion 4, and the metal portion 5K It is arranged at a position to be locked to the engaging portion 4, but the tip portion (sliding contact portion) that contacts the engaging portion 4, the taper circumferential surface 22, etc. is coated with resin to form a resin portion and has good sliding properties. The metal part 5K is locked to the engaging part 4 because the metal part 5K is projected and urged by the metal locking urging part 6 even if the resin part is melted by heat. However, the latching state is still maintained.

  As shown in FIGS. 4 and 1 to 11, the cam groove 12 of the moving direction changing connecting mechanism 14 is provided in the connecting portion 9 of the locking portion 5 provided in the cap body 16 as described above, and the pushing A cam pin 13 of a moving direction conversion coupling mechanism 14 is provided in the interlocking transmission portion 11 of the operation portion 7, and the cap outer periphery grip portion 17 is assembled to the cap body 16 while the cam groove 12 and the cam pin 13 are slidably engaged. The dispensing cap 2 is configured.

  That is, the cap body 16 of the dispensing cap 2 is made of metal as described above, and is held in a locked state regardless of the cap outer periphery grip portion 17 provided with the push operation portion 7. It is made of resin as an operation for engaging / disengaging the locking portion 5 to the last.

  In addition, in this embodiment, the cap outer periphery grip portion 17 is made of resin and is configured to be fitted and assembled to the outside of the cap body 16, so that there is no fear of getting hands dirty, and a good design can be easily and easily made. The configuration is such that the cap body 16 can be reinforced and buffered to protect the locked state of the cap body 16 from the outside.

  More specifically, the cap outer periphery grip portion 17 of the present embodiment stores and arranges the push operation portion 7 in a facing state in a ring-shaped storage portion provided in a donut-shaped grip portion 17A fitted to the cap body 16. The push button surface of the push operation portion 7 is exposed from the window 18 provided in the grip portion 17A and is supported by a compression spring 28. The interlocking transmission part 11 is integrally formed to project, and the interlocking transmission part 11 extends in the circumferential direction, so that the circumferential interlocking transmission part 11 extends to a pair of opposing push operation parts 7 respectively. A cam pin 13 is suspended at the tip, and the cam pin 13 is inserted into and engaged with a cam groove 12 provided in the connecting portion 9 of the locking portion 5 of the cap body 16. The cam pin 13 pushes the inner surface of the cam groove 12 inclined with respect to the Inward pushing by work unit 7 is configured to move the locking portion 5 outwardly (Botsudo direction).

  Therefore, the locked state by the spring urging of the locking part 5 and the locking part 4 is protected by the cap grip outer peripheral part 17 which is an exterior part, and even if it is greatly damaged, the locked state is secured. It can withstand excessive handling such as dropping, and the pouring cap 2 does not come off even under a heat load, and no liquid leakage occurs.

  In addition, in this embodiment, a tapered portion that matches the tapered peripheral surface 22 of the spout 3 is provided on the inner peripheral surface of the dispensing cap 2, that is, the cylindrical portion 20 of the cap body 16, and this inclined portion (all-round tapered surface portion). ) The two members are in contact with each other and supported, and the durability is improved by improving the strength so that an impact load such as dropping is not applied to the locking portion 5.

  The cam groove 12 and the cam pin 13 are also formed of a resin having high lubricity, and the cap main body 16 is used as a support surface of the support portion for supporting the locking portion 5 and a bottom surface serving as a supported surface of the locking portion 5. Lubricating properties such as chrome plating and fluorine coating are provided on the surface that becomes the sliding movement surface when the locking portion 5 protrudes and retracts, such as the bottom surface of the storage portion 19 and the outer peripheral surface of the spout 3. High plating or coating is applied.

  Further, as shown in FIG. 15, ribs that reduce the contact area on the supported surface (the bottom surface of the locking portion 5) that becomes the sliding sliding surface supported by the storage portion 19 of the locking portion 5. A convex portion 25 is provided, and even if foreign matter is mixed in, it can be avoided, so that slidability is maintained well and durability is improved.

  Further, as shown in FIG. 15, the upper surface of the connecting portion 9 of the locking portion 5 in which the cam groove 12 and the cam pin 13 of the moving direction changing connecting mechanism 14 are slidably engaged with each other and the push operation portion 7 are interlocked. The position of the slide sliding surface with the lower surface of the transmission portion 11 is set above the upper end edge of the protruding port 15 from which the inner end portion 5A that engages with the engaging portion 4 of the engaging portion 5 projects. Yes.

  Therefore, since it is one step higher than the upper end of the projection port 15, foreign matter is less likely to enter the slide sliding surface via the projection port 15, and the operation of the moving direction conversion coupling mechanism 14 is less likely to occur. It is configured so that the protrusion 5 can move more smoothly and has excellent durability.

  In this embodiment, as shown in FIGS. 1 and 2, fuel oil is supplied from the spout 3 from which the spout cap 2 has been removed, and the spout cap 2 is fitted and locked to the spout 3. Combustion of an oil stove, a hot air heater, or the like that is placed upside down on the oil receiving surface 24 and supplies fuel oil to the oil receiving surface 24 via the pouring mechanism 10 provided in the pouring cap 2 It is configured as a cartridge-type oil supply tank that is detachably provided in a liquid consuming device such as a heater.

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 Tank main body 2 Outflow cap 3 Outlet 4 Engagement part 5 Locking part 5A Inner end part 6 Locking biasing part 7 Push operation part 8 Locking mechanism 9 Connection part
10 Dispensing mechanism
11 Interlocking transmitter
12 Cam groove
13 Cam pin
14 Movement direction change coupling mechanism
24 Oil receiving surface

Claims (7)

  A spout cap provided with a spout mechanism is detachably provided at a spout provided in a cylindrical shape on the tank body, and an engaging portion provided on the outer peripheral surface of the spout and an inner peripheral surface of the spout cap And a locking part that is detachably locked to the engaging part and is detachably locked to the engaging part to keep the dispensing cap in a locked state in the locked state, and this locking part is attached in the protruding direction. A latch urging portion that urges and urges and latches the engagement portion with the engagement portion by moving the engagement portion in the retracting direction against the engagement bias of the engagement urging portion. A locking mechanism comprising a pushing operation portion provided on the outer peripheral surface of the dispensing cap for releasing the state, and fitting the dispensing cap onto the dispensing port and pushing it down in the axial direction of the dispensing port. The locking portion is locked to the engaging portion by the locking urging force of the locking urging portion to be in a retaining state, and conversely provided on the outer peripheral surface of the spout The liquid supply tank is configured such that by pushing the operating portion, the locking portion moves in the sinking direction against the locking urging force, and is disengaged from the engaging portion to be removed from the spout cap. The locking portion that locks to the engaging portion protrudes and arranges so as to protrude and retract inward from the inner peripheral surface of the dispensing cap in a circumferential direction with an opposing state or interval therebetween, A plurality of the push operation portions are arranged in an opposing state or spaced apart in the circumferential direction so as to be exposed on the outer peripheral surface of the dispensing cap, and the locking portions are arranged between the plurality of push operation portions, respectively. The one side of the push operation part is connected to the adjacent locking part on one side, and the other side is connected to the adjacent locking part on the other side. , And are configured to be respectively connected to one side of different adjacent push operation units, When the slid is pushed, the motive power for moving in the sag direction is transmitted to both the locking parts, but both the locking parts are not engaged with and disengaged from the engaging parts, and both the pressing operation parts are pushed. Then, the immersing power due to the pushing of the different pushing operation portions is transmitted to the respective locking portions, and the immersing power due to the pushing of the respective pushing operation portions cooperates so that the both locking portions are separated from the engaging portions. It is configured so as to be engaged and disengaged, and the engaging portion interlocked with the one pushing operation portion only does not disengage from the engaging portion, and pushes the two or more pushing operation portions. And the two or more locking portions are engaged with and disengaged from the engaging portion, and at least the two or more locking portions are the two or more. The extraction cap can be removed from the spout unless it is disengaged from the engagement portion by the pushing operation portion. The liquid supply tank, wherein the locking mechanism is configured so as not to exist.   A spout cap provided with a spout mechanism is detachably provided at a spout provided in a cylindrical shape on the tank body, and an engaging portion provided on the outer peripheral surface of the spout and an inner peripheral surface of the spout cap And a locking part that is detachably locked to the engaging part and is detachably locked to the engaging part to keep the dispensing cap in a locked state in the locked state, and this locking part is attached in the protruding direction. A latch urging portion that urges and urges and latches the engagement portion with the engagement portion by moving the engagement portion in the retracting direction against the engagement bias of the engagement urging portion. A locking mechanism comprising a pushing operation portion provided on the outer peripheral surface of the dispensing cap for releasing the state, and fitting the dispensing cap onto the dispensing port and pushing it down in the axial direction of the dispensing port. The locking portion is locked to the engaging portion by the locking urging force of the locking urging portion to be in a retaining state, and conversely provided on the outer peripheral surface of the spout The liquid supply tank is configured such that by pushing the operating portion, the locking portion moves in the sinking direction against the locking urging force, and is disengaged from the engaging portion to be removed from the spout cap. The locking portion that locks to the engaging portion protrudes and arranges so as to protrude and retract inward from the inner peripheral surface of the dispensing cap in a circumferential direction with an opposing state or interval therebetween, A plurality of the push operation portions are disposed in an exposed state on the outer peripheral surface of the dispensing cap in a circumferential direction at an opposing state or at intervals, and the push operation portion is caused to move inward of the push operation portion. An interlocking transmission part that moves and connects to the locking part is provided, and the interlocking transmission part is connected to the interlocking transmission part by the movement of the interlocking transmission part by the pushing operation part. It is configured such that the immersion power for moving in the immersion direction is transmitted to the locking portion, and And the interlocking transmission portion provided on one side of the push operation portion is connected to the adjacent lock portion on one side. In addition, the interlocking transmission portion provided on the other side is connected to the adjacent locking portion on the other side, and each locking portion is connected to the respective one of the interlocking transmission portions provided in different adjacent push operation portions. When only one of the push operation parts is pushed, the driving force for moving in the sinking direction is transmitted to the both locking parts via the interlocking transmission parts on both sides. When the both pushing operation parts are pushed without engaging or disengaging from the engaging part, the driving force is moved to the respective locking parts via the one-side interlocking transmission parts of the different pushing operation parts. Is transmitted, and the immersing power due to the pushing of each pushing operation portion cooperates, and the both locking portions are the engaging portions. The engaging portion that is interlocked with the one pushing operation portion is not disengaged from the engaging portion, and the two or more pushing operation portions are pushed. When moved, the immersion power is transmitted via each of the interlocking transmission parts, and the two or more locking parts are engaged with and disengaged from the engaging part in cooperation with each other, and at least the two or more locking parts The liquid supply tank is characterized in that the locking mechanism is configured so that the dispensing cap cannot be removed from the dispensing outlet unless the engagement is disengaged from the engaging portion by pushing the two or more pushing operation portions. .   The two push operation parts are provided in an exposed state at positions where they can be pushed inward with different fingertips of one hand on the outer peripheral surface of the dispensing cap, and are arranged between the two push operation parts, respectively. As described above, the locking portion is arranged in an inwardly projecting manner from the inner peripheral surface of the pouring cap, and the interlocking transmission portions are provided on the left and right sides of the two push operation portions, respectively. The left and right interlocking transmission parts provided in the respective push operation parts are respectively connected to the adjacent latching parts, and the respective latching parts are provided on the respective one side provided in the adjacent different push operation parts. The liquid supply tank according to claim 2, wherein the liquid supply tank is connected to the transmission unit.   The push-out operation portion provided on the left and right ends of the interlocking transmission portion in a symmetrical state is disposed in a symmetrical state with the push button surface exposed from the outer peripheral surface of the dispensing cap formed in a cylindrical shape. The engaging part is provided in a symmetrical state with the inner end protruding from the inner peripheral surface so as to be disposed between the push operation parts, and a connecting part provided symmetrically at both ends of each engaging part or The interlocking transmission portion on one side of each of the different push operation portions is connected to both end portions of the connection portions provided in the respective lock portions so that the lock mechanism has a symmetrical structure, and the push operation portions are pushed. The immersion power is transmitted to each locking portion by movement, and the immersion power is transmitted evenly, and at least one end portion of each locking portion even if only the one pushing operation portion is pushed. Are not yet disengaged from the engaging portion, and the both pushing operation portions are pushed, As the structure in which the equivalent immersion power is transmitted to the part and cooperates and both ends of each locking part are disengaged from the engaging part, the dispensing cap is not inserted until the both pushing operation parts are pushed. The liquid supply tank according to claim 3, wherein the liquid supply tank is configured to be removable from the spout.   The interlocking transmission part provided in the push operation part and the connection part provided in the locking part are connected to the inward movement of the interlocking transmission part by pushing the push operation part inward. Thus, the engagement portion is converted into a movement in the reverse direction of the outward movement in the opposite direction, and the connection is made by the movement direction conversion connection mechanism in which the cam groove and the cam pin are configured to generate the immersion power. The liquid supply tank according to any one of claims 2 to 4.   Fuel oil is supplied from the spout from which the spout cap has been removed, and the spout cap is fitted and locked to the spout, and is placed upside down on the oil receiving surface. The liquid supply tank according to any one of claims 1 to 5, wherein the liquid supply tank is configured as a cartridge-type oil supply tank that supplies fuel oil to the oil receiving surface via a dispensing mechanism.   A liquid consuming device such as a combustion heater, wherein the liquid supply tank according to any one of claims 1 to 6 is detachably provided.

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