JP7142828B2 - gas filling device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas filling apparatus for filling a fuel tank of a vehicle with fuel gas such as hydrogen.

In recent years, hydrogen, which can be produced from various resources, has been attracting attention because of the fact that Japan is poor in fossil fuels and relies on imports from overseas and is easily affected by international affairs. Hydrogen has various merits such as being environmentally friendly and contributing to energy security.
As one of the utilization modes of hydrogen gas, hydrogen gas pressurized to a high pressure (for example, 82 MPa or more) is filled into a fuel tank of a vehicle. In order to withstand such high pressure, the filling nozzle of the gas filling device is heavy, and the filling hose is also heavy.
Here, if a high pressure is applied to the filling hose, the weight of the filling hose becomes even heavier, and the workers who perform the hydrogen gas filling work are forced to work hard.

In recent years, in order to popularize hydrogen stations, self-service hydrogen stations have been developed by revising ministerial ordinances and safety regulations.
The applicant of the present application has proposed a support arm mechanism capable of performing gas filling with light operation by supporting the filling nozzle (see Patent Document 1).
Although this conventional technology (Patent Document 1) is an effective technology, the structure of the facility becomes large because the support arm mechanism is provided separately from the gas filling device. Therefore, although it is suitable for installation in new hydrogen stations, existing hydrogen stations cannot secure a space for installing the support arm mechanism.
In addition, when there are structures around the gas filling device, there is a problem that the supporting arm mechanism interferes with the surrounding structures.

Other prior art also proposes a filling device equipped with a support arm for supporting a filling nozzle (see, for example, Patent Document 2). , the problem that the support arm mechanism interferes with surrounding structures cannot be solved.

Japanese Patent Application Laid-Open No. 2004-19872 Japanese Patent Application Laid-Open No. 2020-60283

The present invention has been proposed in view of the above-mentioned problems of the prior art, and can be installed as a new facility or as an improvement of existing facilities, and can lighten the gas filling work, and the filling device To provide a gas filling device which can be easily installed even if its structure is enlarged, and which can prevent a support arm mechanism from interfering with structures around the gas filling device.

A gas filling apparatus (1) of the present invention includes a filling mechanism in a body housing (2) for conveying a gas from a gas supply source through a gas pipeline while measuring a flow rate of the gas, and the gas pipeline of the filling mechanism. In a gas filling device (1) having a filling hose (3) connected to the outlet of and a filling nozzle (4) provided at the tip of the filling hose (3),
A rotatable support arm mechanism (5) is provided in the body housing (2), and the support arm mechanism (5) is an arm for adjusting the position of the longitudinal end (6T) of the support arm (6). Equipped with adjustment means (see, for example, FIGS. 6 and 7), a hook that can be engaged with the filling nozzle (4) via a string-like member (9: wire, for example) at the tip of the support arm mechanism (5) (10) ,
The arm adjustment means is composed of an arm portion (6A) of an extendable support arm (6),
An arm mechanism housing (6B) having a function of accommodating the base of the arm portion (6A) of the support arm (6) is provided, and the area of the arm portion (6A) on the side of the arm mechanism housing (6B) is the arm mechanism housing ( 6B), the length of the arm (6A) stored in the arm mechanism housing (6B) is variable, and the horizontal relative position between the arm mechanism housing (6B) and the rotating shaft (7) is fixed. By adjusting the length of the arm portion (6A) accommodated in the arm mechanism housing (6B), various positions of the tip (6T) of the support arm (6) can be selected. and

Further, the gas filling apparatus (1) of the present invention is provided with a filling mechanism in the body housing (2) for measuring the flow rate of the gas from the gas supply source and conveying the gas through the gas pipeline, and the gas pipe of the filling mechanism. In a gas filling device (1) having a filling hose (3) connected to the outlet of a channel and a filling nozzle (4) provided at the tip of the filling hose (3),
A rotatable support arm mechanism (5) is provided in the body housing (2), and the support arm mechanism (5) is an arm for adjusting the position of the longitudinal end (6T) of the support arm (6). Equipped with adjustment means (see, for example, FIGS. 6 and 7), a hook that can be engaged with the filling nozzle (4) via a string-like member (9: wire, for example) at the tip of the support arm mechanism (5) (10),
The arm adjustment means is composed of the arm portion (6A) of the extendable support arm (6),
An arm mechanism housing (6B) having a function of accommodating the base of the arm portion (6A) of the support arm (6) is provided, and the arm mechanism housing (6B: arm storage portion) of the support arm (6) rotates the arm. It is movable with respect to the shaft (7), so that the position of the arm rotation shaft (7) can be moved between both ends of the arm mechanism housing (6B) in the horizontal direction so that the tip (6T) of the arm portion (6A) can move. ) is characterized by having a function to adjust the position of

Alternatively, the gas filling device (1) of the present invention includes a filling mechanism for measuring the flow rate of gas from a gas supply source and conveying the gas through a gas pipeline in the body housing (2), wherein the gas pipe of the filling mechanism In a gas filling device (1) having a filling hose (3) connected to the outlet of a channel and a filling nozzle (4) provided at the tip of the filling hose (3),
A rotatable support arm mechanism (5) is provided in the body housing (2), and the support arm mechanism (5) is an arm for adjusting the position of the longitudinal end (6T) of the support arm (6). Equipped with adjustment means (see, for example, FIGS. 6 and 7), a hook that can be engaged with the filling nozzle (4) via a string-like member (9: wire, for example) at the tip of the support arm mechanism (5) (10),
The arm adjustment means is composed of the arm portion (6A) of the extendable support arm (6),
The arm rotating shaft (7) is pivotally supported by the base (5A), which is the lower part of the support arm mechanism (5), without passing through the base (5A). The base (5A) is configured to be movable with respect to the body housing (2), and the position of the base (5A) can be moved with respect to the body housing (2) (horizontally in FIG. 7(B)). By moving the mounting position of the entire support arm mechanism (5) with respect to the body housing (2), the position of the tip (6T) of the support arm (6) is adjusted.

In the present invention, the rotation restricting means (8) is a disk (22: lower disk) to which the rotating shaft (arm rotating shaft 7) of the support arm (6) is connected via a connecting member (21). It has a convex piece (11) fixed on the upper surface and a stopper (12) provided on the upper part of the body housing (2),
The connection member (21) includes two first plate-shaped portions fixed at both ends in the diameter direction near the lower end of the arm rotation shaft (7), and fixed to the two first plate-shaped portions. and is fixed to the disc (22), so that the lower end of the arm rotation shaft (7) and the disc (21) ) are separated in the extension direction of
The projecting piece (11) has an outwardly protruding portion that protrudes radially outward, and the outwardly protruding portion protrudes radially outward from the edge of the disc (22),
The stoppers (12) are arranged at positions corresponding to both ends of the movable range of the outwardly projecting portion of the projecting piece (11),
The support arm (6) is mounted at a desired position at a position where the rotation restricting means (8) is provided, where the arm rotating shaft (7) of the support arm mechanism (5) is attached to the body housing (2). A rotation angle holding means (13: torque hinge) having a stopping function is provided, and the rotation angle holding means (13) is connected to the arm rotation shaft (7) of the support arm (6). It is preferable to have a second disc (24: rotating shaft side disc) fixed (for example, by a fastening member) to the disc (22) .
In the present invention, it is preferable that a supporting arm mechanism (5) and a detonating means (14) are arranged above the body housing (2). Here, in the unlikely event that an explosion occurs, the detonation panel (14A) is opened at an earlier timing than the panel of the main body housing (2) is damaged, allowing the blast to escape and release the gas. This means has a structure (detonation structure) that does not damage the surroundings of the filling device (1).
In carrying out the present invention, it is preferable that a buffer member (16) is attached to the stopper (12) of the rotation restricting means (8).
Further, it is preferable that an emergency release mechanism (17: wire coupling) is provided in the middle of the string-like member (9: wire).

According to the gas filling device (1) of the present invention having the above configuration, the body housing (2) is provided with a rotatable support arm mechanism (5), and the tip of the support arm mechanism (5) is provided with Since the filling nozzle (4) is provided with a hook (10) that can be engaged with the filling nozzle (4) through the string-like member (9), the filling nozzle (4) is suspended from the string-like member (9), and the filling hose ( 3) and the weight of the filling nozzle (4) is borne (supported) by the support arm (6). Therefore, when performing a gas filling operation using the heavy filling hose (3) and filling nozzle (4), the weight of the filling hose (3) and filling nozzle (4) is supported by the support arm mechanism (5). Therefore, it is possible to lighten the burden on the operator of the gas filling work and lighten the work of the gas filling work.
Even if an operator accidentally drops the filling nozzle (4) during the gas filling operation, the filling nozzle (4) is hung by the string-like member (9), so it can be hung just before it drops to the ground. It is lowered and is prevented from being damaged by a falling impact. In addition, since the weight of the filling hose (3) and the filling nozzle (4) is supported by the support arm mechanism (5), the operator can securely hold the filling nozzle (4) by hand. Therefore, it is possible to prevent the filling nozzle (4) from falling out of the hand.
Furthermore, the gas filling device (1) and the support arm mechanism (5) can be configured integrally. Therefore, it is possible to prevent the entire facility from becoming large, and it can be installed not only in a new hydrogen station but also in an existing hydrogen station.

Further, in the present invention, if the arm portion (6A) of the support arm (6) is telescopic, the position of the longitudinal end (6T) of the support arm (6) can be adjusted to adjust the support arm (6A). 6) can be prevented from interfering with structures around the gas filling device (1).
Here, the arm housing (6A) of the support arm (6) is configured to be movable with respect to the support member (7: arm rotation axis), or the base (5A) of the support arm mechanism (5) is It is possible to prevent the support arm (6) from interfering with structures around the gas filling device (1) even if it is configured to be movable with respect to the main body housing (2).
In addition, by adopting the above-described structure, the support arm mechanism (5) can be provided separately from the existing gas filling device (1) that does not have the support arm mechanism (5). It can be installed without interfering with objects.

Furthermore, if the support arm mechanism (5) and the detonating means (14) are arranged in the upper part of the main body housing (2), the restrictions on the installation of the gas filling device (1) are satisfied, and hydrogen Increases the degree of freedom with respect to station placement.
Further, the supporting arm mechanism (5) is prevented from interfering with the detonating means (14), and even if the detonating means (14) operates (the door 14A is opened), the supporting arm mechanism (5) is not damaged.
In addition, in the present invention, if the rotation restricting means (8) for restricting the rotation (pivot) of the rotating shaft (7) is provided, the rotation restricting means (8) will be more effective than the stopper for restricting the arm itself. is not large, and the installation space for the rotation restricting means (8) is not large compared to the space required for attaching the stopper that restricts the arm itself. Therefore, it can be easily applied to other types of gas filling apparatuses.

1 is a perspective view of a gas filling device according to an embodiment; FIG. FIG. 4 is a perspective view showing a state in which a housing is removed from the rotation restricting means of the support arm mechanism; FIG. 3 is a partially enlarged perspective view showing details of a rotation restricting means shown in FIG. 2; 4 is a partially enlarged perspective view showing a state in which a protruding piece abuts against a stopper in the rotation restricting means of FIG. 3; FIG. 3 is an enlarged cross-sectional view of the support arm mechanism as seen from the direction of arrow B in FIG. 2; FIG. FIG. 5 is an explanatory diagram showing a mode of changing the arm tip position of the support arm mechanism; FIG. 7 is an explanatory diagram showing a mode of changing the arm tip position of the support arm mechanism, which is different from that in FIG. 6 ; It is an explanatory perspective view showing the operation of the detonation structure.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
In FIG. 1, a gas filling apparatus 1 according to the embodiment includes a filling mechanism (not shown) for measuring the flow rate of gas from a gas supply source and conveying the gas through a gas pipeline in a body housing 2. It has a filling hose 3 connected to the outlet of a gas pipe (not shown) in the mechanism and a filling nozzle 4 provided at the tip of the filling hose 3 . In FIG. 1, reference numeral 18 denotes a display in the gas filling device 1. As shown in FIG.
In the illustrated embodiment, a hydrogen gas filling apparatus will be described as an example, but the illustrated embodiment can also be applied to CNG gas and other gas filling apparatuses.
Other configurations and effects of the filling mechanism (not shown) are the same as those of known technology filling mechanisms.

In FIG. 1, a support arm mechanism 5 is provided on the upper surface (top surface) of a body housing 2 having a filling hose 3 and a filling nozzle 4 . The support arm mechanism 5 regulates the rotation of the support arm 6 (the arm portion 6A and the arm mechanism housing 6B: see FIGS. 6 and 7), the rotation shaft 7 (see FIG. 3) of the support arm 6, and the rotation shaft 7. A (limiting) rotation restricting means 8 is provided. Details of the rotation restricting means 8 will be described later with reference to FIGS. In FIG. 1, only the housing of the rotation restricting means 8 is shown.
A string-like member 9 (for example, a wire) hangs down from the tip 6T of the support arm mechanism 5, and the other end (hanging tip) of the wire 9 has a hook 10 (wire-side hook), and the hook 10 is a filling nozzle. 4 can be locked to a hook fixture 19 provided in the vicinity of the grip portion.
The filling nozzle 4 is suspended from the wire 9 by engaging the hook 10 on the wire 9 side with the hook fixture 19 on the filling nozzle 4 side, and the weight of the filling hose 3 and the filling nozzle 4 is borne by the support arm 6. be (supported) Therefore, when the hydrogen filling operation is performed using the heavy filling hose 3 and filling nozzle 4, the supporting arm mechanism 5 supports the weight of the filling hose 3 and filling nozzle 4, thereby reducing the burden on the operator during the gas filling operation. is reduced to make the work easier.
Note that the hook 10 on the wire 9 side and the hook fixture 19 on the filling nozzle 4 side can be engaged and released freely.

Although not shown in FIG. 1, the supporting arm mechanism 5 is provided with a known wire winding device including a wire reel, a retractor, and the like for winding and unwinding the wire 9 . Here, the wire winding device (not shown) has a rotational force imparting mechanism that imparts a constant rotational force when the wire reel that winds and unwinds the wire 9 rotates forward or backward.
Furthermore, the wire winding device (not shown) has a wire holding mechanism that holds the wire 9 (at that position) when the unwinding and unwinding of the wire 9 is stopped. A wire holding mechanism (not shown) stops the lifting of the wire 9 once the winding of the wire 9 is stopped, thereby preventing the wire 9 from being wound up and moving to a high position in the no-load state. When an operator pulls the wire 9 downward while the wire 9 is stopped (held) by the wire holding mechanism, the wire 9 is released from being held and the wire 9 moves up and down.
If an operator accidentally drops the filling nozzle 4 during the hydrogen gas filling operation, the filling nozzle 4 is suspended by the wire 9, so the filling nozzle 4 is suspended just before it hits the ground. Damage to the filling nozzle 4 due to collision with the ground is prevented. In addition, since the weight of the filling hose 3 and the filling nozzle 4 is supported by the supporting arm mechanism 5, the worker can securely hold the filling nozzle 4 by hand, and the filling nozzle 4 can be removed from the worker's hand. Less chance of falling off.

In FIG. 1, an emergency release mechanism 17 (wire coupling) is provided in the middle of the wire 9. As shown in FIG. Although not shown, the wire coupling 17 includes an arm-side member connected to the wire 9 on the supporting arm mechanism 5 side and a hook-side member connected to the wire 9 on the hook 10 side (filling nozzle 4 side). It is composed of By connecting the arm-side member and the hook-side member, it functions as a wire coupling 17, and is configured to release the connection between the arm-side member and the hook-side member when a tensile force exceeding a predetermined level acts on the wire 9. ing. For example, when the vehicle with the filling nozzle 4 connected is accidentally started and the filling nozzle 4 is pulled with a force greater than a predetermined force, the connection between the arm side member and the hook side member of the wire coupling 17 is released. , the connection between the wire 9 and the filling nozzle 4 is released. As a result, not only damage to the wire 9 and damage to the support arm mechanism 5 but also adverse effects on various devices in the gas filling device 1 can be prevented.
A known mechanism other than the wire coupling can also be applied as the emergency release mechanism 17 .

In FIG. 1, in addition to the support arm mechanism 5, an explosive means 14 is arranged on the upper part of the main body housing 2. As shown in FIG.
The detonating means 14 is constructed so that, in the unlikely event that a blast occurs inside the main body housing 2, the blast is released so that the main body housing 2 and the components of the gas filling device 1 are not damaged. The housing 2 has an opening 14B (see FIGS. 5 and 8) and a door 14A. The door 14A closes the opening 14B in a steady state, and the door 14A is displayed as a member showing the detonating means 14 in FIG. The detonating means 14 will be described later with reference to FIG.
In FIG. 1, reference numeral 20 denotes a slit for ventilation inside the body housing 2. As shown in FIG.

Next, the rotation restricting means 8 of the support arm mechanism 5 will be described with reference to FIGS. 2 to 4. FIG.
FIG. 2 shows a state in which the housing of the rotation restricting means 8 is removed from the support arm mechanism 5 arranged on the upper surface of the main body housing 2 . In FIG. 2, a main part of the rotation restricting means 8 is indicated by a chain double-dashed line and a symbol A. As shown in FIG.
FIG. 3 shows an enlarged view of the main part A in FIG. In FIG. 3, by rotating (turning) the rotation shaft 7 of the support arm 6, the support arm 6 of the support arm mechanism 5 is moved to an appropriate rotation angle position, and the wire 9 (FIGS. 1 and 3) is rotated. 2) can support the filling nozzle 4 (FIG. 1) indicated through. At that time, if the range in which the support arm 6 rotates is too wide, there is a risk that the arm 6 or the filling nozzle 4 will interfere with a structure (not shown) around the gas filling device 1, and the workability of the filling operation will be impaired. It is likely to decline.
Here, it is possible to apply a rotational (rotating) driving force to the rotating shaft 7 by a known driving device.
In the illustrated embodiment, a rotation restricting means 8 is provided to restrict the rotation (turning) of the support arm 6, and the rotation angle of the support arm 6 is adjusted within a predetermined angle (the movable range of the support arm 6 is (adjusted within a predetermined range) to prevent interference with surrounding structures and improve the workability of the filling operation.

In FIG. 3, the rotation restricting means 8 includes a projecting piece 11 arranged on the rotating shaft 7 of the support arm 6 and a stopper 12 arranged on the upper part of the main body housing 2 .
Specifically, the rotating shaft 7 of the support arm 6 (support arm mechanism 5) is connected to the lower disk 22 via the connection member 21, and the end is radially outwardly mounted on the upper surface of the lower disk 22. A projecting piece 11 having a U-shaped cross section is fixed. On the other hand, a stopper mounting plate 23 is provided on the upper surface of the body housing 2 , and stoppers 12 having an L-shaped cross section are fixed to two positions on the upper surface of the stopper mounting plate 23 . The rotation of the support arm 6 is restricted when the projection 11 provided on the rotating shaft 7 comes into contact with the stopper 12 .
The area of the angle formed by the projection 11 and the two stoppers 12 with respect to the rotation shaft 7 is the rotation angle of the support arm 6, that is, the movable range. It can be rotated (rotated) in a range between the rotation (rotation) angle position at which the protruding piece 11 contacts the other stopper 12 and the rotation (rotation) angle position.
In FIG. 3, the protruding piece 11 is located at an angle roughly intermediate between the two stoppers 12 .
A buffer member 16 is attached to the stopper 12 of the rotation restricting means 8 .

FIG. 4 shows a state in which the protruding piece 11 is in contact with one of the stoppers 12 . The rotating shaft 7 does not rotate (rotate) further clockwise from the state shown in FIG. 4, and the clockwise rotation of the support arm 6 is restricted by the stopper 12 in contact with the projecting piece 11 in FIG. ing. Although not shown in FIG. 4, counterclockwise rotation of the support arm 6 is regulated by a stopper 12 that does not abut against the convex piece 11 in FIG. 3 and 4, the rotation (rotation) angle of the support arm mechanism 5 (support arm 6) is approximately 90°.

The rotation angle holding means 13 (torque hinge) will be described with reference to FIG.
The rotation angle holding means 13 (torque hinge) is provided at a location where the rotating shaft 7 of the support arm mechanism 5 is attached to the body housing 2 and at a location where the rotation restricting means 8 is provided.
In FIG. 5, a rotating shaft side disc 24 is fixed to the lower surface of the lower disc 22 (by, for example, a fastening member), and a body housing side plate having approximately the same dimensions as the rotating shaft side disc 24 is attached to the upper surface of the stopper mounting plate 23 . A disc 25 is fixed (eg by welding). A disc spring 26 is interposed between the rotating shaft side disc 24 and the main body housing side disc 25, and the structure is such that the disc spring 26 is sandwiched between the rotating shaft side disc 24 and the main body housing side disc 25. ing. Rotational angle holding means 13 (torque hinge) is formed by a structure in which disc spring 26 is sandwiched between lower disc 22 and stopper mounting plate 23, and disc spring 26 is sandwiched between rotary shaft side disc 24 and body housing side disc 25. there is

Here, when the support arm 6 is moved (rotated), the rotation angle holding means 13 causes the support arm 6 to swing (rotate) beyond a desired position due to the inertial force of the support arm 6 . The support arm 6 has a function of stopping the support arm 6 at a desired position. Therefore, it becomes easier to adjust the position of the filling nozzle 4 in the hydrogen gas filling operation, and workability is improved. Here, the configuration of the torque hinge itself is known.
5, the door 14A of the detonating means 14 is arranged on the left side (in FIG. 5) of the position where the supporting arm mechanism 5 and the rotation angle holding means 13 are arranged.

Referring back to FIG. 1, when the filling operation is not performed, such as after the hydrogen station is closed, the filling nozzle 4 is hung on the nozzle hook inside the main body housing 2 by the storage door 27 in order to prevent the filling nozzle 4 from being tampered with. Close the access opening. When the storage door 27 is closed, the hook 10 of the wire 9 is removed from the hook fixture 19 of the filling nozzle 4, and the wire 9 interferes with the storage door 27, and the filling nozzle 4 is taken in and out of the opening of the main body housing 2. is prevented from becoming unable to close.
A fitting 15 for locking the hook 10 is provided on the main body housing 2 , and the hook 10 of the wire 9 detached from the hook fitting 19 of the filling nozzle 4 is locked by the fitting 15 of the main body housing 2 . be. This is to prevent the hook 10 of the wire 9 removed from the filling nozzle 4 from being caught by people or vehicles around the gas filling device 1 .

Here, depending on the relative position of the vehicle and the gas filling device 1 and the relative position of the gas filling device and the surrounding structure, the support arm 6 may be arranged to prevent interference between the vehicle or the surrounding structure and the support arm 6. There are cases where the position of the tip 6T of 6 should be adjusted.
Such a case will be described with reference to FIGS. 6 and 7. FIG.
6A and 6B, the base of the arm portion 6A of the support arm 6 (the left region in FIG. 6) can be accommodated in the arm mechanism housing 6B. length is variable. In the example shown in FIG. 6, the relative position (horizontal position in FIG. 6) between the arm mechanism housing 6B and the rotating shaft 7 (supporting member) is fixed. In FIG. 6, reference numeral 8 indicates a rotation restricting means.
6A and 6B, the length of the arm portion 6A accommodated in the arm mechanism housing 6B is made variable (the length of the arm portion 6A outside the arm mechanism housing 6B is variable). ), various positions of the tip 6T of the support arm 6 can be selected.
Although not shown in FIG. 6, the arm portion 6A of the support arm 6 itself can be configured to be extendable (for example, configured to be telescopic). Even if the support arm 6 is extendable, the position of the tip 6T can be adjusted.

Further, as shown in FIG. 7, the position of the tip 6T of the arm portion 6A can be adjusted by adjusting the relative position between the arm mechanism housing 6B and the rotating shaft 7 (supporting member).
7A and 7B, the length of the arm portion 6A is the same in FIGS. 7A and 7B, but the tip 6T of the support arm 6 7(B) extends to the right in the drawing, and the arm 6 is extended. In FIG. 7A, the rotary shaft 7 is positioned at the right end of the arm mechanism housing 6B, whereas in FIG. 7, the position of the arm tip 6T is extended to the right in FIG. 7 by the length from the approximate right end position of the arm mechanism housing 6B to the central position.
The relative positions of the arm mechanism housing 6B and the rotating shaft 7 can be adjusted by applying known techniques.
By adjusting the relative position between the arm mechanism housing 6B and the rotating shaft 7, the position of the tip 6T of the support arm 6 can be selected from a plurality of positions.

A mode of adjusting the position of the tip 6T of the support arm 6, which is other than the above-described mode, will be described with reference to FIG. 7(B).
In FIG. 7(B), if the rotation shaft 7 does not pass through the base portion 5A, which is the lower portion of the support arm mechanism 5, but is pivotally supported by the base portion 5A, the position of the base portion 5A is adjusted relative to the main body housing 2 (see FIG. 7B). 7(B)), the mounting position of the entire support arm mechanism 5 relative to the main body housing 2 is moved, and the distal end 6T of the support arm 6 is moved in the same manner as when the arm portion 6A is extended and contracted. position can be adjusted.
If the base 5A of the support arm mechanism 5 is movable with respect to the main body housing 2, for example, when retrofitting the support arm mechanism 5 to the existing gas filling device 1, the position of the support arm 6 can be adjusted as appropriate to allow gas to be supplied. Interference with structures around the filling device can be prevented.
When adjusting the position of the tip 6T of the support arm 6, it is possible to select and implement one of the above-described multiple aspects, or to implement a combination of multiple aspects.

In FIG. 8, a detonating means 14 is provided on the upper surface of the body housing 2 .
As described above with reference to FIG. 1, detonating means 14 includes opening 14B and door 14A (panel), door 14A normally closing opening 14B. In the unlikely event that a blast occurs inside the main body housing 2, the door 14A opens at a timing earlier than the panel of the main body housing 2 is damaged, allowing the blast generated inside the main body housing 2 to escape, and the blast This prevents the inside and outside of the gas filling device 1 from being damaged. The door 14A is set so as to be opened when the pressure inside the body housing 2 reaches a predetermined value or higher.
FIG. 8 shows a state in which the door 14A is opened by a blast inside the main body housing 2 in the unlikely event of an emergency. As described above, the opening 14B is closed by the door 14A except in an emergency.
Although not clearly illustrated, the relative positions of the support arm mechanism 5 and the detonating means 14 are, for example, as shown in FIGS. It is set at a position where it does not interfere with the support arm 6 at that time. In other words, the relative positions of the supporting arm mechanism 5 and the detonating means 14 are set so that the supporting arm mechanism 5 is not damaged even if the detonating means 14 is actuated to open the door 14A.

According to the illustrated embodiment, the body housing 2 is provided with a rotatable support arm mechanism 5, a wire 9 is suspended from the tip 6T of the support arm 6, and the hook 10 at the other end of the wire 9 is attached to the filling nozzle 4 side. The weight of the filling hose 3 and the filling nozzle 4 is borne (supported) by the support arm 6 . Therefore, when performing gas filling work using the filling hose 3 and filling nozzle 4 which are heavy, the burden on the operator of the gas filling work can be reduced, and the gas filling work can be lightened.
In addition, even if the worker accidentally drops the filling nozzle 4 during the gas filling operation, since the filling nozzle 4 is suspended by the wire 9, it is suspended just before dropping to the ground, and the impact of the dropping is reduced. In addition, since the weight of the filling hose 3 and the filling nozzle 4 is supported by the support arm mechanism 5, the possibility of the worker dropping the filling nozzle 4 from the hand is reduced. .

In the illustrated embodiment, since the arm 6 of the support arm mechanism 5 is extendable, the position of the longitudinal end portion 6T of the arm 6 is adjusted so that the support arm 6 does not interfere with structures around the gas filling device 1. It is possible to prevent this from happening.
Here, the arm mechanism housing 6B of the support arm mechanism 5 is configured to be movable with respect to the rotation shaft 7, or the base portion 5A of the support arm mechanism 5 is configured to be movable with respect to the main body housing 2, By adjusting the position of the end portion 6T of the arm 6, interference with structures around the gas filling device 1 can be prevented.
In addition, by adopting the above-described structure, the support arm mechanism 5, which is separate from the existing gas filling device 1 that does not have the support arm mechanism 5, is arranged so as not to interfere with the surrounding structures. can be installed.

Furthermore, the supporting arm mechanism 5 and the detonating means 14 are arranged on the upper part of the main body housing 2, which satisfies the restrictions on the installation of the gas filling device 1, thereby increasing the degree of freedom in the arrangement at the hydrogen station.
Further, according to the illustrated embodiment, interference between the support arm mechanism 5 and the detonating means 14 is prevented. That is, even if the detonating means 14 operates and the door 14A opens, the support arm mechanism 5 is not damaged.

It should be noted that the illustrated embodiment is merely an example and is not intended to limit the technical scope of the present invention.

1... Gas filling device (hydrogen gas filling device)
2 Main body housing 3 Filling hose 4 Filling nozzle 5 Support arm mechanism 5A Base (base of support arm mechanism)
6 Support arm 6A Arm portion 6B Arm mechanism housing 7 Rotation shaft (rotation shaft of support arm)
8 Rotation restricting means 9 Wire (string-like member)
Reference Signs List 10 Hook 11 Convex piece 12 Stopper 13 Rotation angle holding means (torque hinge)
14 Detonation means 14A Door (detonation panel)
15 Hook attachment 16 Buffer member 17 Emergency detachment mechanism (wire coupling)

Claims (5)

A main housing (2) has a filling mechanism for conveying gas through a gas pipe while measuring the flow rate of gas from a gas supply source, and a filling hose (3) connected to an outlet of the gas pipe of the filling mechanism. and a filling nozzle (4) provided at the tip of the filling hose (3) ,
A rotatable support arm mechanism (5) is provided in the body housing (2) , and the support arm mechanism (5) is an arm for adjusting the position of the longitudinal end (6T) of the support arm (6) . An adjustment means is provided, and a hook (10) that can be engaged with the filling nozzle (4) via a string-like member (9) is provided at the tip of the support arm mechanism (5) ,
The arm adjustment means is composed of an arm portion (6A) of an extendable support arm (6),
An arm mechanism housing (6B) having a function of accommodating the base of the arm portion (6A) of the support arm (6) is provided, and the area of the arm portion (6A) on the side of the arm mechanism housing (6B) is the arm mechanism housing ( 6B), the length of the arm (6A) stored in the arm mechanism housing (6B) is variable, and the horizontal relative position between the arm mechanism housing (6B) and the rotating shaft (7) is fixed. By adjusting the length of the arm portion (6A) accommodated in the arm mechanism housing (6B), various positions of the tip (6T) of the support arm (6) can be selected. gas filling device. A main housing (2) has a filling mechanism for conveying gas through a gas pipe while measuring the flow rate of gas from a gas supply source, and a filling hose (3) connected to an outlet of the gas pipe of the filling mechanism. and a filling nozzle (4) provided at the tip of the filling hose (3),
A rotatable support arm mechanism (5) is provided in the body housing (2), and the support arm mechanism (5) is an arm for adjusting the position of the longitudinal end (6T) of the support arm (6). An adjustment means is provided, and a hook (10) that can be engaged with the filling nozzle (4) via a string-like member (9) is provided at the tip of the support arm mechanism (5),
The arm adjustment means is composed of the arm portion (6A) of the extendable support arm (6),
An arm mechanism housing (6B) having a function of accommodating the base of the arm portion (6A) of the support arm (6) is provided, and the arm mechanism housing (6B) of the support arm (6) is connected to the arm rotation shaft (7). By moving the position of the arm rotating shaft (7) between the horizontal ends of the arm mechanism housing (6B), the position of the tip (6T) of the arm part (6A) can be changed to A gas filling device characterized by having an adjusting function. A main housing (2) has a filling mechanism for conveying gas through a gas pipe while measuring the flow rate of gas from a gas supply source, and a filling hose (3) connected to an outlet of the gas pipe of the filling mechanism. and a filling nozzle (4) provided at the tip of the filling hose (3),
A rotatable support arm mechanism (5) is provided in the body housing (2), and the support arm mechanism (5) is an arm for adjusting the position of the longitudinal end (6T) of the support arm (6). An adjustment means is provided, and a hook (10) that can be engaged with the filling nozzle (4) via a string-like member (9) is provided at the tip of the support arm mechanism (5),
The arm adjustment means is composed of the arm portion (6A) of the extendable support arm (6),
The arm rotating shaft (7) is pivotally supported by the base (5A), which is the lower part of the support arm mechanism (5), without passing through the base (5A). The base (5A) is configured to be movable with respect to the body housing (2), and by moving the position of the base (5A) with respect to the body housing (2), the entire support arm mechanism (5) A gas filling device characterized by having a function of adjusting the position of a tip (6T) of a support arm (6) by moving a mounting position with respect to a body housing (2). The rotation restricting means (8) includes a convex piece (11) fixed to the upper surface of a disc (22) to which the rotating shaft (7) of the support arm (6) is connected through a connecting member (21). , a stopper (12) provided at the top of the body housing (2),
The connection member (21) includes two first plate-shaped portions fixed at both ends in the diameter direction near the lower end of the arm rotation shaft (7), and fixed to the two first plate-shaped portions. and is fixed to the disc (22), so that the lower end of the arm rotation shaft (7) and the disc (21) ) are separated in the extension direction of
The projecting piece (11) has an outwardly protruding portion that protrudes radially outward, and the outwardly protruding portion protrudes radially outward from the edge of the disc (22),
The stoppers (12) are arranged at positions corresponding to both ends of the movable range of the outwardly projecting portion of the projecting piece (11),
The support arm (6) is mounted at a desired position at a position where the rotation restricting means (8) is provided, where the arm rotating shaft (7) of the support arm mechanism (5) is attached to the body housing (2). A rotation angle holding means (13: torque hinge) having a stopping function is provided, and the rotation angle holding means (13) is connected to the arm rotation shaft (7) of the support arm (6). The gas filling device according to any one of claims 1 to 3, further comprising a second disk (24: rotating shaft side disk) fixed to said disk (22) (by means of a fastening member, for example). The gas filling device according to any one of claims 1 to 4, wherein a supporting arm mechanism (5) and an explosion means (14) are arranged on the upper part of the body housing (2) .

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