JP3047897B2 - Cartridge tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge tank in which a cap having a valve on a tank body is detachable.

[0002]

2. Description of the Related Art Conventional cartridge tanks of this kind are:
As shown in FIG. 6, FIG. 7, FIG. 8, and FIG. 9, a fuel supply port 2 for supplying fuel is provided at an appropriate position of the tank body 1, and a cap 4 having a valve mechanism 3 is attached to the fuel supply port 2. The end face 2a is sealed with a seal face 3c provided on the cap 4 so that the oil supply port 2 is kept open and closed via the valve mechanism 3. When the device 5 is set in the tank storage space 6, the valve body 3 b is pushed up by the valve push-up pin 8 provided in the oil receiving tray 7 by placing the oil filling port 2 downward and mounting the oil receiving tray 7 on the oil receiving tray 7. When the valve mechanism 3 is forcibly opened and the fuel in the tank body 1 is supplied to the oil receiving tray 7, and when the oil level in the oil receiving tray 7 reaches the discharge port 9 of the valve mechanism 3, the fuel from the tank body 1 is discharged. Supply stops. Then, when the fuel in the oil receiving tray 7 is consumed and the oil level decreases, the supply of the fuel from the tank body 1 is started again. By this repetition, the supply of fuel from the tank body 1 to the oil receiving tray 7 is performed.

Next, when the fuel in the tank body 1 is consumed and needs to be replenished, the tank body 1 is taken out of the equipment 5 so that the valve push-up pin 8 is separated from the valve mechanism 3 and the valve mechanism 3 is built in. The valve body 3b is brought into close contact with the discharge port 9 by the spring 3a to close the valve body 3b, thereby preventing the fuel from flowing out of the tank body 1. In this state, the tank body 1 is turned over, the cap 4 is turned upward, the cap 4 is loosened, and the cap 4 is removed from the fuel filler port 2. After the fuel is supplied from the filler port 2, the cap 4 is attached to the filler port 2, and the cap 5 is again mounted on the device 5 in reverse, so that the supply to the oil receiving tray 7 is started.

[0004]

However, in the conventional configuration, when the cap 4 is not properly tightened when the cap 4 is attached to the filler port 2, the tank body 1 is reversed and the cap 4 is turned downward. When the cap 4 comes off, or the fuel leaks due to incomplete sealing between the end face 2a of the filler port 2 and the sealing face 3c of the cap 4, the fuel in the tank body 1 flows out at once. There is a problem that fuel overflows from the oil pan 7 of the equipment 5 side. For example, since an oil stove or the like is burned in a state where it is opened indoors, it is extremely unlikely that the above-mentioned phenomenon occurs. There is a risk of causing a safe condition.

In order to prevent an unsafe condition due to kerosene spill in a petroleum stove such as a petroleum stove that burns indoors, a method of automatically extinguishing the petroleum combustor when the cartridge tank is removed is described. Is generally adopted. However, the oil combustor immediately after the fire was extinguished was in a very hot state, and if kerosene was applied to the oil combustor after the fire was extinguished due to the removal of the cap, it might reignite and start burning. Extinguishing a fire at the time of refueling was not a complete measure.

[0006] Further, the state of tightening of the cap 4 to the filler port 2 in the conventional configuration is determined by the sense of the person who is tightening, and it is extremely difficult to confirm the state. It was also noticeable. In other words, there is a natural difference in the tightening state between a case where a relatively weak person such as an elderly person or a young person performs replenishment work and a case where a powerful person such as an adult man performs replenishment work. There is a higher probability that an insecure state as described above is caused when a person without power performs replenishment work.

[0007] Further, there is a problem in removing the cap due to individual differences in the tightening state. In other words, if a strong person tightens strongly and then a weak person performs replenishment work, on the other hand, it will be difficult to remove the cap, which is extremely difficult to use. There were also problems.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is possible to easily confirm the tightening state of a cap to a filler port so that the tightening strength of the cap is constant no matter who performs replenishment work. It is an object of the present invention to provide a cartridge tank that can be used safely by elderly people in an aging society.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a tank body, an oil supply port provided at an appropriate position in the tank body, a screw portion formed on the outer periphery of the oil supply port, and a screw to this screw portion. A refueling cap that closes the refueling port by combination,
An informing means for informing the screwing state of the refueling cap to the screw portion is provided so that the tightening state of the refueling cap can be confirmed.

According to the above-mentioned invention, since the notification is made by the notification means in accordance with the tightening state of the liquid supply cap to the fuel supply port, the notification start point of the notification means is set to be equal to or higher than the tightening closing position of the fuel supply cap. As a result, it is possible to reliably secure the tightening state of the refueling cap above the closed position, eliminate insufficient tightening of the refueling cap,
Liquid leakage due to detachment of the oiling cap or incomplete sealing can be prevented, and the problem that the liquid in the tank body flows out at one time and the problem that overflow occurs on the oil receiving tray side can be eliminated.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A cartridge tank according to a first aspect of the present invention has a tank body, an oil supply port provided at an appropriate position of the tank body, a screw portion formed on the outer periphery of the oil supply port, and a screw engagement with the screw portion. A refueling cap for closing the refueling port by
An informing means for informing the screwing state of the refueling cap to the screw portion is provided so that the tightening state of the refueling cap can be confirmed.

Since the notification is made by the notification means in accordance with the tightening state of the refueling cap to the refueling port, the notification start point of the notifying means is set to be equal to or higher than the tightening and closing position of the refueling cap, so that it is ensured. The tightening state of the oil cap can be secured above the closed position, eliminating insufficient tightening of the oil cap, preventing liquid leakage due to detachment of the oil cap and incomplete sealing, and the liquid in the tank body flowing out at once It is possible to eliminate the problem of overflow and the problem of overflow on the oil pan side.

[0013] The cartridge tank of claim 2 is
The notifying means has at least a structure for generating a sound, so that the screwing state of the refueling cap to the screw portion can be checked by hearing.

When the oil supply cap is attached to the cartridge tank after the replenishment operation, a sound is generated when the oil supply cap is tightened to the tightened closing position, so that the oil supply cap is tightened until the sound is heard. The tightening state can be confirmed by both the sound and the feeling at the time of tightening. Therefore, no matter who performs replenishment work, it is possible to ensure that the lubrication cap is tightened more than the closed position, eliminate insufficient lubrication cap tightening, and prevent oil leakage due to detachment of the lubrication cap and incomplete sealing. Therefore, it is possible to eliminate the problem that the liquid in the tank body flows out at one time and the problem that the overflow occurs on the oil receiving side.

Further, the cartridge tank according to claim 3 is
The notifying means has at least a mechanism for generating an intermittent impact, so that the screwing state of the refueling cap to the screw portion can be confirmed by a bodily sensation.

The cartridge tank according to claim 4 is
The notification means includes a mechanism having at least a torque change,
The state in which the refueling cap is screwed to the threaded portion can be visually confirmed.

When the oil supply cap is attached to the cartridge tank after the replenishing operation, when the oil supply cap is tightened to the tightened closing position or more, an intermittent impact is applied so that a change in the tightening state can be confirmed by the touch of the hand without fail. Alternatively, by generating vibration or a change in tightening torque, it is possible to encourage the work of tightening the oil supply cap until an impact, vibration, or change in torque is felt, and the tightening state is changed in a way that is very sensitive to the person who feels change in feel. Can be confirmed. Therefore, no matter who performs replenishment work, it is possible to ensure that the lubrication cap is tightened more than the closed position, eliminate insufficient lubrication cap tightening, and prevent oil leakage due to detachment of the lubrication cap and incomplete sealing. Therefore, it is possible to eliminate the problem that the liquid in the tank body flows out at one time and the problem that the overflow occurs on the oil receiving side.

Further, the cartridge tank of claim 5 is
The notification means starts the notification operation when the fueling cap is tightened to a predetermined position.

Further, when the oil supply cap is attached to the cartridge tank after the supply operation, the tightening position of the oil supply cap can be regulated, and the closed state of the oil supply cap can be reliably ensured, and individual differences in the tightening strength can be eliminated. In addition, a constant tightening state can be ensured no matter who tightens.

Further, the cartridge tank according to claim 6 is
The notifying means starts the notifying operation when the fueling cap reaches a predetermined tightening strength.

When the oil supply cap is attached to the cartridge tank after the replenishment operation, the oil supply cap is tightened until the notification operation is started, whereby the tightening strength of the oil supply cap can be regulated, and the oil supply cap can be reliably closed. The state can be ensured, the individual differences in the tightening strength are eliminated, and a constant tightening state can be ensured no matter who tightens.

The cartridge tank according to claim 7 is
The notifying operation start position of the notifying means is the tightening closing position of the oil supply cap.

When the refueling cap is attached to the cartridge tank after the refilling operation, the refueling cap is tightened until the notification operation is started, so that the closed state of the refueling cap can be reliably ensured, and even if the replenishing operation is performed, the refueling cap can be surely provided. The tightened state of the cap can be secured above the closed position, eliminating the problem of insufficient tightening of the refueling cap, preventing oil leakage due to detachment of the refueling cap and incomplete sealing, and that the fuel in the tank body flows out at once. It is possible to eliminate troubles and troubles of causing overflow on the oil receiving side.

Further, the cartridge tank of claim 8 is
Oil supply cap turning means is provided, and this oil supply cap turning means is rotatable in a tightening direction from a tightened closing position of the oil supply cap.

Further, the cartridge tank of claim 9 is
The refueling cap and the refueling cap rotating means are connected via a friction mechanism acting only in one direction, and when the predetermined tightening strength is reached, only the refueling cap rotating means is rotatable.

According to a tenth aspect of the present invention, the notification means performs the notification operation when the refueling cap rotating means is rotating in the tightening direction from the tightening closing position of the refueling cap.

[0027] Even after the oil supply cap is tightened and closed, the oil supply cap turning means is rotatable in the tightening direction, and the notification operation is performed when only the oil supply cap turning means is turned. By doing so, the tightening state can be checked.

In the cartridge tank according to the eleventh aspect, the notification means performs the notification operation only in a predetermined section in which the refueling cap rotating means starts rotating in the tightening direction from the tightening position of the refueling cap. .

[0029] Even after the oil supply cap is tightened and closed, the oil supply cap turning means is rotatable in the tightening direction, and a notification operation is performed only in a predetermined section in which only the oil supply cap turning means starts turning. By doing so, check the tightening state more reliably,
It is intended to improve usability.

In the cartridge tank according to the twelfth aspect, the notification means is provided so as to mesh with the first gear coupling provided with a first gear coupling provided so as to cover the outer peripheral portion on the outlet side of the oil supply cap with a predetermined spring pressure. The second gear coupling and the second
A spring that presses and holds the gear coupling against the first gear coupling; and a refueling cap rotating unit that retains one of the springs and rotates the refueling cap. The first gear coupling and the second gear coupling are a ratchet mechanism. It has the structure which has.

By adopting a ratchet mechanism using a gear coupling as the notification means, only the refueling cap rotation means can be configured to be rotatable in one direction, and when the meshing of the gears changes. Can be notified of the tightening state by the sound, impact and torque change that occur in the gear, and the tightening state can be checked in a way that can be sensed by the human being, such as hearing and hand sensation. It is possible to arbitrarily set a point when the alignment changes, that is, a notification start point.
As described above, the notifying means can be provided with an extremely simple configuration of combining the gears and the springs, and the cartridge tank can be supplied with consideration for usability and safety in consideration of the aged society.

In the cartridge tank according to the thirteenth aspect, the notifying means has a first gear joint, a second gear joint, a spring, and a rotation cap integrally formed with the oil supply cap, and is attached to the oil supply cap side. It has a configuration that is compatible with existing lubrication caps.

By providing the notifying means on the refueling cap side, it is possible to attach the fuel cartridge to an existing cartridge tank by replacing only the refueling cap.
It is possible to provide a cartridge tank having the fastening notification means easily.

[0034]

An embodiment of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a structural view of a cartridge tank according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a main part of an oiling cap, FIG. FIG. 4 is an exploded perspective view of the refueling cap.

Numeral 11 denotes a tank body for storing fuel, 12
Is an oil meter for checking the amount of fuel in the tank body 1;
3 is a fuel supply port for supplying and discharging fuel to the tank body 1, 1
Reference numeral 3a denotes a screw portion formed on the outer peripheral portion of the filler port 13, 14
Is a refueling cap removably provided in the refueling port 13, 15 is a first gear joint integrally provided on the refueling cap 14 by insert molding or the like so as to cover the refueling cap 14, and 16 is a first gear having a predetermined spring pressure. A second gear coupling 17 provided to mesh with the coupling 15 is a spring that presses and holds the second gear coupling 16 against the first gear coupling 15, and 18 retains one of the springs 17 and detachably attaches the oil supply cap 14. An oil supply cap rotating means is formed by the rotating cap that rotates. The first gear coupling 15 and the second gear coupling 1
Reference numeral 6 denotes a configuration having a ratchet mechanism that meshes in a saw-toothed gear shape, and locks the first gear joint 15 and the second gear joint 16 with a predetermined spring pressure, thereby causing friction in only one direction in the tightening direction. A mechanism is provided.
In other words, when rotating in the tightening direction and applying a rotational force equal to or greater than the sliding resistance determined by the spring pressure, the first gear coupling 15
The second gear joint 16 rotates while the engagement state changes. The first gear joint 15, the second gear joint 16, and the spring 17 form a notifying unit 19 for notifying the tightening state of the oil supply cap 14. 20 is the refueling cap 1
The valve mechanism 4 includes a valve body 21, a valve seat 22, and a spring 23, and opens and closes a discharge port 24 of the fuel supply cap 14. 25 is an oil pan for temporarily storing fuel for supplying fuel to the burner of the oil combustor; 26 is an oil pan 25
A valve push-up pin 27 is formed in the receiving port 26 so as to project therefrom.

In the above configuration, the operation will be described. First, when the tank body 11 is mounted on the receiving port 26 of the oil receiving tray 25 with the oil supply cap 14 facing downward, the valve push-up pin 27 pushes the valve body 21 against the spring 23. Push up,
The closed state of the discharge port 24 of the refueling cap 14 by the valve seat 22 is released. As a result, the fuel in the tank body 11 is supplied into the oil receiving tray 25 via the receiving port 26, and is stored up to the oil level of the discharge port 24 of the refueling cap 14. When the oil level in the oil receiving tray 25 is reduced by consumption by the burner, air enters the tank body 11 from the discharge port 24,
The fuel in the tank main body 11 is supplied into the oil receiving tray 25 by the air replacement action. By repeating this, the oil pan 25
The oil level inside maintains a constant oil level.

Next, when the fuel in the tank body 11 becomes empty, the tank body 11 is removed from the receiving port 26. At this time, the operation of the valve mechanism 20 pushing up the valve body 21 with the valve push-up pin 27 is released, so that the valve body 21 is
To return to the original state, and keeps the discharge port 24 closed via the valve seat 22. Then, the tank body 11 is carried to a refueling place, the refueling cap 14 is removed, and refueling is performed by a siphon pump or the like. However, since the tip of the refueling cap 14 is always located in the oil, the refueling cap
The hands are dirty when attaching and detaching, and are very disliked. For this reason, in the present invention, a turning cap 18 is provided as a refueling cap turning means for removal.
Numeral 8 is formed so as to be largely separated from the valve mechanism 20 of the oil supply cap 14, so that even if oil spreads on the surface of the oil supply cap 14, it does not reach the rotating cap 18 so as to prevent contamination of the hands. Further, since the rotation cap 18 is connected to the oil supply cap 14 via a ratchet mechanism composed of the first gear joint 15 and the second gear joint 16 integrated with the oil supply cap 14, the rotation cap 18 is rotated in the removal direction. The moving cap 18 and the refueling cap 14 rotate in synchronization with each other, and the refueling cap 14 can be removed by turning the rotating cap 18.

Next, when the refueling of the tank body 11 is completed, the work of attaching the refueling cap 14 to the refueling port 13 is performed. In general, the fuel storage place is often dark and cold, such as outdoors or on a veranda. There is a psychological effect that the user is required to complete the refueling operation in as short a time as possible. Therefore, the mounting operation of the refueling cap 14 is neglected, and a case occurs in which the tightening is half-finished. Also,
Since a certain amount of force is required for the tightening work, individual differences in tightening strength appear remarkably. That is, since a strong person such as an adult male tends to tighten relatively strongly, oil leakage due to insufficient tightening is unlikely to occur. Also, when a relatively weak person, such as an elderly person or a woman, performs a tightening operation, it is difficult to grasp the sense of how far to tighten, and the tightening tends to be insufficient, leading to oil leakage. .

Therefore, according to the present invention, the tightening state is notified by the notifying means 18 and when a predetermined tightening state is reached, the tightening of the oil supply cap 14 is restricted, and only the turning cap 18 which is the oil supply cap turning means turns. State. Thereby, by tightening until the notification operation is started, the closed state of the refueling cap 14 can be reliably ensured, and the refueling cap 14 can be reliably maintained regardless of who performs the replenishing operation.
Can be secured above the closed position,
Resolves insufficient tightening of the refueling cap 14, prevents oil leakage due to detachment of the refueling cap 14 and incomplete sealing,
It is possible to eliminate the problem that the fuel in the tank body 11 flows out at one time and the problem that the overflow occurs on the oil receiving tray 25 side.

That is, after the refueling operation, when the refueling cap 14 is attached to the refueling port 13 and the revolving cap 18 is turned in the tightening direction, the initial tightening load is small,
Since the notifying means 19 having a friction mechanism formed by the first gear coupling 15, the second gear coupling 16 and the spring 17 has a larger friction torque, the engagement of the gears does not change. 14
Rotate together. When the rotation of the refueling cap 14 advances to the tightened and closed state, the rotation of the refueling cap 14 is restricted. If the turning cap 18 is further rotated from this position in the tightening direction, the second gear joint 16 obtains a turning torque greater than the friction torque, and the second gear joint 16 meshes with the first gear joint 15. Over the gear and change to meshing with the next gear. And
Since the first gear coupling 15 and the second gear coupling 16 have a saw-tooth gear shape, the second gear coupling 16 climbs over the gear so as to collide with the first gear coupling 15 when the meshing changes. The tightening and closing state of the oil supply cap 14 is confirmed by a sound or impact generated by a collision when the vehicle gets over the gear or a torque change generated in a process of getting over the sawtooth gear.

Since the above-mentioned state is continued while the rotating cap 18 is being rotated in the tightening direction, the tightened state is not a vague feeling of the conventional degree of tightening but a sound, impact and torque change. It can always be confirmed by hearing and feel that can be judged.
This makes it possible to make the tightening torque of No. 4 constant, thereby solving the problem of excessive tightening or insufficient tightening.

The second gear coupling 16 is connected to the first gear coupling 1.
By adjusting the spring pressure of the spring 17 that is pressed against the 5, it is possible to select whether to start the notification operation of the notification means 19 when tightening to a predetermined position or when the predetermined tightening strength is reached. become. That is, when the spring pressure is reduced, when the end face of the oil filler port 13 comes into contact with the sealing surface of the oil filler cap 14, it is possible to notify by changing the meshing between the first gear joint 15 and the second gear joint 16. ,
When the spring pressure is tight, after the end face of the oil filler port 13 comes into contact with the sealing surface of the oil filler cap 14, when further tightening to a predetermined tightening strength, the meshing between the first gear coupling 15 and the second gear coupling 16 is changed. Therefore, a predetermined tightening strength can be ensured. Further, since the surface pressure on the sealing surface is always kept constant, the seal packing is hardly deteriorated and the sealing performance can be improved.

The first gear coupling 15 and the second gear coupling 1
The notification operation can be performed only in a predetermined section by arbitrarily setting the number of meshing of the gear 6.

In this embodiment, the notifying means is formed by a ratchet mechanism using a gear joint and a spring. However, the notifying means may be configured to generate a change in sound or torque by using a sliding resistance such as surface contact. Any configuration may be used as long as it achieves the present invention.

Further, in this embodiment, the ratchet mechanism as the notification means is constituted separately from the oil supply cap rotating means.
A configuration in which a ratchet mechanism is provided on the refueling cap rotating means side for the purpose of simplifying the configuration may be employed.

(Embodiment 2) FIG. 5 is a cross-sectional view of a main part of Embodiment 2 of the present invention.

In the second embodiment, the first gear joint 15 is integrated with the oil supply cap 14 by insert molding or the like, and the notification means 19 is provided on the oil supply cap 14 side together with the second gear joint 16, the spring 17, the rotating cap 18 and the like. Things.

Therefore, by replacing only the oil supply cap 14, it is possible to attach the oil supply cap 14 to an existing cartridge tank, and it is possible to provide a cartridge tank having a fastening notifying means easily.

[0050]

As described above, according to the cartridge tank of the first aspect, the notification is made by the notification means in accordance with the state of tightening of the liquid supply cap to the oil supply port.
By setting the notification start point of the notification means to be equal to or higher than the closed position of the oil supply cap, the tightened state of the oil supply cap can be reliably ensured to be equal to or higher than the closed position. Liquid leakage due to detachment or incomplete sealing can be prevented, and a problem that fuel in the tank body flows out at once and a problem that overflow occurs on the oil receiving tray side can be eliminated.

According to the cartridge tank of the second aspect, when the oil supply cap is attached to the cartridge tank after the replenishing operation, a sound is generated when the oil supply cap is tightened to the closed position.
The user can be prompted to tighten the lubrication cap until a sound is heard, and the tightening state can be confirmed by both the sound and the feeling at the time of tightening. Therefore, no matter who performs replenishment work, it is possible to ensure that the lubrication cap is tightened more than the closed position, eliminate insufficient lubrication cap tightening, and prevent liquid leakage due to detachment of the lubrication cap and incomplete sealing. Thus, it is possible to eliminate the problem that the fuel in the tank body flows out at once and the problem that the overflow occurs on the oil receiving side.

According to the cartridge tank of the third and fourth aspects, when the oil supply cap is attached to the cartridge tank after the replenishing operation, when the oil supply cap is tightened to the closed position, the change in the tightened state is felt by the hand. By generating intermittent shocks, vibrations, or changes in tightening torque so that it can be confirmed reliably, it is possible to prompt the tightening work of the lubrication cap until shocks, vibrations, or changes in torque are felt, resulting in a change in feel. The tightening condition can be checked in such a way that it can be felt very sensitively to the person. Therefore, no matter who performs replenishment work, it is possible to ensure that the lubrication cap is tightened more than the closed position, eliminate insufficient lubrication cap tightening, and prevent liquid leakage due to detachment of the lubrication cap and incomplete sealing. Thus, it is possible to eliminate the problem that the fuel in the tank body flows out at once and the problem that the overflow occurs on the oil receiving side.

Further, according to the cartridge tank of the present invention, the tightening position of the oil supply cap can be regulated when the oil supply cap is attached after the supply operation to the cartridge tank, and the closed state of the oil supply cap is reliably ensured. In addition to this, it is possible to eliminate individual differences in tightening strength and to ensure a constant tightening state no matter who tightens.

According to the cartridge tank of the present invention, when the oil supply cap is attached to the cartridge tank after the replenishing operation, the oil supply cap is tightened until the notification operation is started, thereby restricting the tightening strength of the oil supply cap. Thus, the closed state of the refueling cap can be reliably ensured, the individual differences in the tightening strength are eliminated, and a constant tightened state is ensured no matter who is tightened.

Further, according to the cartridge tank of the present invention, when the oil supply cap is attached to the cartridge tank after the refilling operation, the oil supply cap is tightened until the notification operation is started, so that the closed state of the oil supply cap can be ensured.
No matter who performs replenishment work, it is possible to ensure that the lubrication cap is securely tightened above the closed position, eliminating insufficient lubrication cap tightening and preventing oil leakage due to detachment of the lubrication cap and incomplete sealing. It is possible to eliminate a problem that the fuel in the tank body flows out at once and a problem that the overflow occurs on the oil receiving side.

According to the cartridge tank of the eighth, ninth and tenth aspects, the oil supply cap turning means can be freely rotated in the tightening direction even after the oil supply cap is tightened and closed, and the oil supply cap turning means can be rotated. The notification operation is performed when only the member is rotating, so that the tightening state can be confirmed.

According to the cartridge tank of the eleventh aspect, even after the oil supply cap is tightened and closed, the oil supply cap turning means is rotatable in the tightening direction, and only the oil supply cap turning means is turned. The notification operation is performed only for a predetermined period of time to start the operation, so that the tightening state is confirmed more reliably and the usability is improved.

According to the cartridge tank of the twelfth aspect, by adopting a ratchet mechanism using a gear as the notifying means, the sound, impact and torque generated when the meshing of the gear changes are notified. It is possible to check the tightening state in a way that people can feel sensitively to the sense of hearing and hand, and the point when the meshing of gears changes by adjusting the spring pressure,
The notification start point can be set arbitrarily. As described above, it is possible to provide a notifying means with an extremely simple configuration of combining a gear and a spring, and to supply a cartridge tank which is made with consideration for ease of use and safety with consideration for the aged society.

According to the cartridge tank of the eleventh aspect, since the notifying means is provided on the refueling cap side, it is possible to mount the refilling cap alone on an existing cartridge tank by replacing only the refueling cap.
It is possible to provide a cartridge tank having the fastening notification means easily.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a cartridge tank according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a fueling cap of the tank.

FIG. 3 is a sectional view of a main part showing a state where the tank is installed in a device.

FIG. 4 is an exploded perspective view of a fueling cap of the tank.

FIG. 5 is a sectional view of a main part of an oil supply cap according to a second embodiment of the present invention.

FIG. 6 is a configuration diagram of a conventional cartridge tank.

FIG. 7 is a view showing an operation of installing the tank on equipment.

FIG. 8 is a cross-sectional view of a main part showing a state where the tank is installed in equipment

FIG. 9 is a view showing an operation of removing a fueling cap of the tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Tank main body 13 Oil supply port 13a screw part 14 Oil supply cap 15 1st gear joint 16 2nd gear joint 17 Spring 18 Rotation cap (oil supply cap rotation means) 19 Notification means 20 Valve mechanism

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F23K 5/14 503

Claims (13)

(57) [Claims] 1. A tank body, a filler port provided at an appropriate position in the tank body, a screw portion formed on an outer periphery of the filler port, a filler cap for closing the filler port by screwing into the screw part, and a fuel filler. A notifying means for notifying the screwing state of the cap to the screw portion, wherein the tightening state of the oil supply cap can be confirmed. 2. The cartridge tank according to claim 1, wherein said notifying means has a configuration for generating at least a sound so that a screwing state of the oiling cap to the screw portion can be confirmed by hearing. 3. The cartridge tank according to claim 1, wherein said notifying means has a mechanism for generating at least an intermittent impact, so that a screwed state of the oiling cap to the screw portion can be confirmed by a bodily sensation. 4. The cartridge tank according to claim 1, wherein said notifying means includes at least a mechanism having a torque change, so that a screwing state of the oiling cap to the screw portion can be confirmed by a bodily sensation. 5. The cartridge tank according to claim 1, wherein said notifying means starts the notifying operation when the oiling cap is tightened to a predetermined position. 6. The cartridge tank according to claim 1, wherein said notifying means starts the notifying operation when the oiling cap reaches a predetermined tightening strength. 7. A notifying operation starting position of said notifying means is set to be equal to or more than a tightening closing position of a refueling cap.
The cartridge tank according to any one of the above items. 8. The cartridge tank according to claim 1, further comprising a refueling cap rotating means, the revolving cap rotating means being rotatable in a tightening direction from a tightened closing position of the refueling cap. 9. A fuel supply cap and a fuel supply cap rotating means,
9. The cartridge tank according to claim 8, wherein the cartridge tank is connected via a friction mechanism acting only in one direction, and when a predetermined tightening strength is reached, only the oil supply cap rotating means is rotatable. 10. The cartridge tank according to claim 8, wherein the notifying means performs the notifying operation when the refueling cap turning means is turned in a tightening direction from a tightened closing position of the refueling cap. 11. The cartridge tank according to claim 8, wherein said notifying means performs the notifying operation only in a predetermined section in which the refueling cap rotating means starts rotating in a tightening direction from a tightened closing position of the refueling cap. 12. The notifying means includes a first gear coupling provided so as to cover an outer peripheral portion of an oil supply cap on an outlet side, and a second gear coupling provided so as to mesh with the first gear coupling with a predetermined spring pressure. A spring for pressing and holding the second gear joint against the first gear joint, and an oil supply cap rotating means for holding one of the springs and rotating an oil supply cap, wherein the first gear joint and the second gear are provided. The cartridge tank according to any one of claims 1 to 10, wherein the joint has a ratchet mechanism. 13. The notifying means has a first gear joint, a second gear joint, a spring, and a rotation cap integrally formed with a fuel filler cap, and is attached to a fuel filler cap side. 13. The cartridge tank according to claim 12, wherein the cartridge tank is compatible with a fuel cap.