JP2000146154A - Cartridge tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively assure a clamping state of an oil supply cap by facilitating attaching and detaching operations of the cap. SOLUTION: The cartridge tank comprises a tank body 11, an oil supply port 13, a threaded part formed on an outer periphery of the port, an oil supply cap 14 for blocking the port 13 by threading with the threaded part, a first gear joint 15 provided to cover the cap 14, a second gear joint 16 provided to be engaged with the joint 15, a spring 17 for pushing the joint 15 into contact with the joint 16 to hold it, and an oil supply cap rotating means 18 for holding one side of the spring 17 and rotating the cap 14. The means 18 has a larger outer diameter than the cap 14 and a wall 18a having a predetermined height in which the cap is not submerged in oil when the cap is set to an equipment is stood on an outer periphery.

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 held loose, and the tank 4 is removed from the fuel filler port 2. After the fuel is supplied from the fuel filler 2, the cap 4 is attached to the fuel filler 2 with the cap 4, and the device 5 is reversely mounted again, whereby the supply to the oil receiving tray 7 is started.

[0004]

However, in the conventional configuration, the cap 4 is close to the liquid surface when the cap 5 is set on the device 5, and the oil bounces off during setting and the evaporated oil adheres to the surface of the cap 4. In many cases, when the cap 4 is attached to the oil filler opening 2 and tightened by holding the cap 4 itself, the oil attached to the surface makes it slippery, and a normal tightening state cannot be secured. In addition, there was a problem that the oil on the surface of the cap 4 adhered to the hands and caused discomfort.

[0005] If the tightening state is not good, when the tank body 1 is reversed and the cap 4 is turned downward, the cap 4 may come off, or the sealing between the end face 2a of the oil filler port 2 and the sealing face 3c of the cap 4 may occur. There is a problem that fuel leaks due to imperfection and the fuel in the tank body 1 flows out at one time, and there is a problem that fuel overflows from the oil pan 7 of the equipment 5 side. Since a stove or the like is burned in a state where it is opened indoors, there is a danger that an extremely unsafe state will be caused if the above-mentioned phenomenon occurs.

In order to prevent an unsafe state 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.

In addition, the state of tightening the cap 4 to the filler port 2 in the conventional configuration is determined by the sense of the person who tightens, 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 will be caused when a person without power performs replenishing work, and this tendency tends to occur when oil is attached to the surface of the cap 4 and the cap 4 is slippery. Remarkably appears.

[0008] Further, there is a problem in removing the cap due to individual differences in the tightening state. In other words, if a powerful person tightens strongly and then a less powerful person performs replenishment work, on the other hand, difficult work is required when removing the cap, and similarly, oil adheres and slips. In the case where it is in an easy state, there is also a problem that it becomes extremely inconvenient to use, in particular, increasing the difficulty in removing work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to minimize the adhesion of oil to a cap, to facilitate the attachment and detachment of the cap, and to make the tightening strength constant. The purpose of the present invention is to provide a cartridge tank that can be normally attached and detached even if anyone performs replenishment work, and that can be used safely by the elderly even in an aging society. .

[0010]

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 of the tank body, a screw portion formed on the outer periphery of the oil supply port, and A refueling cap for closing the refueling port by screwing, a first gear coupling provided to cover the refueling cap, a second gear coupling provided to mesh with the first gear coupling with a predetermined spring pressure, A spring that presses and holds the second gear coupling against the first gear coupling; and a refueling cap rotating means for retaining one of the springs and rotating the refueling cap, wherein the refueling cap rotating means is provided by a refueling cap. A wall having a large outer diameter and a predetermined height is provided on the outer peripheral portion so as not to be immersed in the oil to be set in the equipment, and the oil supply cap is attached / detached with the wall.

According to the above invention, the oiling cap is attached and detached by oiling cap rotating means having an outer diameter larger than the oiling cap, and the oiling cap is constituted by the first gear coupling, the second gear coupling and the spring. Since the attachment and detachment are performed via the ratchet mechanism, when the tightening strength of a predetermined value or more is applied in accordance with the set pressure of the spring at the time of tightening, the first gear coupling and the second gear coupling idle and the lubrication cap is closed. Regulate the tightening and maintain the specified tightening strength. On the other hand, when loosening, the ratchet mechanism applies a force higher than the tightening strength, so that it is instantly loosened and easy to remove. In addition, since the oil supply cap rotating means is located at a position distant from the liquid surface, there is no adhesion of oil splashing when the tank is set, and adhesion of evaporated oil is extremely small. The slipping state can be reduced, and the workability is extremely improved.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A cartridge tank according to a first aspect of the present invention comprises 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 thread to the screw portion. A refueling cap that closes the refueling port, a first gear coupling provided to cover the refueling cap, a second gear coupling provided to mesh with the first gear coupling with a predetermined spring pressure, A spring that presses and holds the second gear joint against the first gear joint; and a refueling cap rotating means that holds one of the springs and rotates the refueling cap, wherein the refueling cap rotating means is larger than the refueling cap. A wall having an outer diameter and a predetermined height which is not immersed in the oil to be set in the equipment is erected on the outer peripheral portion, and the oil supply cap is attached / detached with the wall.

According to the present invention, the oiling cap is attached and detached by oiling cap rotating means having an outer diameter larger than the oiling cap, and the oiling cap is constituted by the first gear coupling, the second gear coupling and the spring. Since the attachment and detachment are performed via the ratchet mechanism, when the tightening strength of a predetermined value or more is applied in accordance with the set pressure of the spring at the time of tightening, the first gear coupling and the second gear coupling idle and the lubrication cap is closed. Tightening can be regulated to maintain a predetermined tightening strength. Therefore, the tightening state of the oil cap can be ensured more than the closed position, eliminating insufficient tightening of the oil cap, preventing liquid leakage due to detachment of the oil cap and incomplete sealing, It is possible to eliminate the problem that the liquid flows out and the problem that the overflow occurs on the oil receiving side. On the other hand, when loosening, the ratchet mechanism applies a force higher than the tightening strength, so that it is instantly loosened and easy to remove. In addition, since the oil supply cap rotating means is located at a position distant from the liquid surface, there is no adhesion of oil splashing when the tank is set, and adhesion of evaporated oil is extremely small. The slipping state can be reduced, and the workability is extremely improved.

Further, the cartridge tank according to claim 2 is
The oil supply cap rotating means has a configuration in which an uneven portion is provided on the outer peripheral surface of a wall provided upright on the outer peripheral portion.

[0015] When the oil supply cap turning means is turned, it is caught on a finger so that the turning operation can be easily performed.

The cartridge tank according to claim 3 is
The uneven portion has a left-right symmetric shape. Since the oil supply cap is attached and detached via a ratchet mechanism constituted by the first gear joint, the second gear joint and a spring,
The tightening strength can be kept constant to secure the tightened closed state, and the shape of the concave and convex portions is made symmetrical so that a force is evenly applied at the time of tightening and at the time of removing.

[0017]

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

FIG. 1 is a structural view 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, and FIG.
FIG. 4 is a cross-sectional view of a main part showing a state of installation on equipment, and FIG.

Reference numeral 11 denotes a tank body for storing fuel, and 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
3a is a threaded 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. A wall 18a having a predetermined height is erected on the outer peripheral portion, and a symmetrical uneven portion 18b is provided on the outer peripheral surface as shown in FIG. The first gear joint 15 and the second gear joint 16 have a ratchet mechanism that meshes in a sawtooth gear shape, and the first gear joint 15 and the second gear joint 16 are engaged by a predetermined spring pressure. By stopping, the friction mechanism is provided only in one direction of the tightening direction. 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 joint 15 and the second gear joint 16 rotate while the engaged 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.
Reference numeral 20 denotes a valve mechanism housed in the refueling cap 14, and a valve body 21
And a valve seat 22 and a spring 23,
The opening and closing of the discharge port 24 is performed. Reference numeral 25 denotes an oil pan for temporarily storing fuel for supplying fuel to the burner of the oil combustor, and 26 denotes a socket attached to the upper opening of the oil pan 25, and a valve push-up pin 27 protrudes from the socket 26. It is formed.

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. Further, a wall 18a having a predetermined height is provided upright on the outer peripheral portion of the rotating cap 18, and a bilaterally symmetric uneven portion 18b is provided on the outer peripheral surface.
When the turning cap 18 is turned, a finger is hooked on the concave and convex portion 18b and turned to facilitate the detaching operation.

Next, when refueling of the tank body 11 is completed, a work of attaching the refueling cap 14 to the refueling port 13 is performed. In general, a 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. In addition, 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 much to tighten, and the tightening tends to be insufficient, which may lead to oil leakage. .

Therefore, the present invention relates to the first gear coupling 15, the second
Since the attachment / detachment is performed via the notifying means 19 having the ratchet mechanism constituted by the gear joint 16 and the spring 17, if a predetermined or more tightening strength is applied according to the set pressure of the spring 17 at the time of tightening, the first Gear coupling 1
5 and the second gear coupling 16 rotate idly and the refueling cap 14
, The predetermined tightening strength is maintained, and the tightening state can be reported by the first gear joint 15 and the second gear joint 16 rotating idly. Therefore, it is possible to reliably secure the tightening state of the oil supply cap 14 above the closed position, eliminate insufficient tightening of the oil supply cap 14, prevent oil leakage due to detachment of the oil supply cap 14 and incomplete sealing, and at once. It is possible to eliminate the problem that the fuel in the tank main body 11 flows out and the problem that the overflow occurs on the oil receiving tray 25 side. Furthermore, it has a larger outer diameter than the refueling cap 14,
In addition, a revolving cap 18 is provided as a refueling cap rotating means provided with a wall 18a of a predetermined height provided with a plurality of bilaterally symmetric uneven portions 18b on an outer peripheral portion. The cap 14 can be easily tightened.

That is, after the refueling operation, when the rotating cap 18 is rotated in the tightening direction with the wall 18a, the tightening load is initially small, and the friction formed by the first gear coupling 15, the second gear coupling 16, and the spring 17 is reduced. Since the frictional torque of the notifying means 19 having a mechanism is larger, the engagement of the gears does not change, and the turning cap 18 and the oil supply cap 14 turn together. And
When the rotation of the refueling cap 14 advances to the tightened 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. Since the first gear joint 15 and the second gear joint 16 have a saw-tooth gear shape, when the meshing changes, the second gear joint 16 gets over the gear so as to collide with the first gear joint 15. . 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 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.

As described above, since the cartridge tank of the present invention can secure the closed state with a predetermined tightening torque, unnecessary force is not required at the time of tightening. Therefore, the shape of the surface uneven portion 18b of the wall 18a provided on the outer peripheral portion of the rotating cap 18 is made symmetrical so that the finger is evenly caught when tightening and removing, so that the same force is applied, and workability is improved. To improve.

[0027]

As described above, according to the cartridge tank of the first aspect, the oil supply cap is attached and detached by oil supply cap rotating means having an outer diameter larger than the oil supply cap, and the oil supply cap is connected to the first gear coupling. , Because it is configured to be attached and detached via a ratchet mechanism composed of a second gear joint and a spring, when a tightening strength of a predetermined level or more is applied according to the set pressure of the spring at the time of tightening,
The first gear joint and the second gear joint idle and restrict the tightening of the oil supply cap, so that a predetermined tightening strength can be maintained. Therefore, the tightening state of the oil cap can be ensured more than the closed position, eliminating insufficient tightening of the oil cap, preventing liquid leakage due to detachment of the oil cap and incomplete sealing, It is possible to eliminate the problem that the liquid flows out and the problem that the overflow occurs on the oil receiving side. On the other hand, when loosening, the ratchet mechanism applies a force higher than the tightening strength, so that it is instantly loosened and easy to remove. In addition, since the oil supply cap rotating means is located at a position distant from the liquid surface, there is no adhesion of oil splashing when the tank is set, and adhesion of evaporated oil is extremely small. The slipping state can be reduced, and the workability is extremely improved.

Further, according to the cartridge tank of the present invention, when the oil supply cap turning means is turned, the turning operation can be easily performed.

According to the cartridge tank of the third aspect, since the oil supply cap is attached and detached via the ratchet mechanism constituted by the first gear joint, the second gear joint and the spring, the tightening strength is kept constant. As a result, a force can be applied evenly at the time of fastening and at the time of removal, and the workability can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a cartridge tank according to an 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 a perspective view of a main part of a fueling cap of the tank.

FIG. 5 is a view showing a fuel supply cap rotating means of the tank.

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) 18a wall 18b uneven part 19 Notification means 20 Valve mechanism

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kuroda Etsuyuki 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 3K068 AA11 CB03 CB12

Claims (3)

[Claims] 1. A tank body, a filler port provided at an appropriate position in the tank body, a screw portion formed on the outer periphery of the filler port, a filler cap for closing the filler port by screwing into the screw part, A first gear coupling provided to cover the oiling cap, a second gear coupling provided to mesh with the first gear coupling with a predetermined spring pressure, and the second gear coupling pressed against and held by the first gear coupling. A refueling cap rotating means for holding one of the springs and rotating the refueling cap, the refueling cap rotating means having a larger outer diameter than the refueling cap, and being set on the outer peripheral portion to the device. A cartridge tank in which a wall of a predetermined height that does not sink into the oil when it is set up is provided, and the oil supply cap is attached and detached using the wall. 2. The cartridge tank according to claim 1, wherein said oil supply cap rotating means has an uneven portion on an outer peripheral surface of a wall erected on an outer peripheral portion. 3. The undulating portion has a symmetrical shape.
The described cartridge tank.