JP4782442B2 - Portable tank equipment - Google Patents

Description

  The present invention relates to a portable tank device that is preferably used for operating a pneumatic device such as a nailing machine.

  In general, a portable tank device constitutes a pneumatic source that is easy to carry at a construction site or the like, and is widely used to operate a pneumatic device such as a nailing machine (for example, a patent document). 1).

JP 2000-249072 A

  This type of prior art portable tank device is composed of a tank body formed as a cylindrical pressure vessel extending in the front and rear directions, and a mounting device connected to the tank body and including a pressure reducing valve and a discharge port. Has been. In this case, for example, the tank body is housed in a substantially box-shaped housing so that it can be easily installed on the ground or the like of a construction site, and is carried in this state.

  In addition, as another conventional technique, it is possible to install the tank body directly on the ground without using a housing by providing support legs at the lower part of the tank body and installing equipment on the upper part of the tank body. There is also a portable tank device.

  And when using compressed air, a portable tank apparatus is first installed in a desired place, and a pneumatic apparatus is connected to the discharge port. Then, the pneumatic device is operated by discharging the compressed air filled in the tank body from the discharge port while reducing the pressure to a predetermined pressure by the pressure reducing valve. Thus, at construction sites and the like, pneumatic equipment can be used at a desired location by carrying a portable tank device instead of moving a relatively heavy air compressor. .

  By the way, in the prior art mentioned above, it is set as the structure which accommodates a tank main body in a box-shaped housing, for example. However, in this case, since the overall dimensions, weight, etc. are increased by the amount of the housing, carrying this is troublesome work, and there is a problem that the advantages of the portable tank device are not fully exhibited.

  On the other hand, as described in other prior art, a configuration in which the tank body is directly installed on the ground without using a housing by providing support legs on the tank body is also conceivable. However, the tank body is formed as a cylindrical pressure vessel so as to be filled with high-pressure compressed air, and has a shape that is easy to roll.

  For this reason, when the tank main body is directly installed on the ground, even if the support legs are used, the tank main body may fall to the side by contact with an operator, etc. When the mounted device provided collides with the ground, there is a problem that the mounted device is damaged or malfunctions.

  The present invention has been made in view of the above-described problems of the prior art, and the object of the present invention is to reduce the overall size and weight, protect the mounted equipment from damage during a fall, etc., and is easy to handle and has high durability. The object is to provide a portable tank device having the same.

In order to solve the above-described problem, the invention of claim 1 is a tank body formed as a cylindrical pressure vessel extending in the front and rear directions and supported by a support leg, and disposed on the ground. In a portable tank device configured by a pressure reducing valve and a mounting device including a discharge port provided at an upper portion, the tank main body has more than the mounting device when the tank main body falls leftward and rightward. First, a protective handle that contacts the ground and protects the mounted device is provided, and the protective handle includes two bent portions formed by bending and a connecting portion that connects one side of these bent portions to each other. And provided on the other side of each bent portion with a fixing portion for fixing the bent portion to the tank body in the length direction of the bent portion, and when the tank body falls to the left Protective handle touches the ground A straight line connecting the part and the part where the outer peripheral surface of the tank body is in contact with the ground is a first straight line, and the part where the protective handle is in contact with the ground when the tank body falls rightward and the outer periphery of the tank body when the plane connecting the portion contacting the ground straight and the second straight line, the mounting apparatus employs the placed Ru configured between the first straight line and the second straight line.

According to a second aspect of the present invention, the mounted device is arranged so as to be located inside a straight line connecting the protective handle and the outer peripheral surface of the tank body or the support leg.

According to a third aspect of the present invention, the mounted device is arranged so as to be within the width dimension in the left and right directions of the protective handle.

According to a fourth aspect of the present invention, the bent portion is formed to be bent in a U shape or an L shape.

Further, according to the invention of claim 5 , a filling port for filling the tank body with compressed gas is provided between the bent portions of the protective handle.

  According to invention of Claim 1, this can be carried to a desired place by gripping the protective handle of the tank body. Further, by using the on-board equipment, for example, the compressed gas can be filled in the tank body or the compressed gas in the tank body can be discharged for use.

For example, when the tank body falls down due to an external force or the like, the protective handle can be brought into contact with the ground prior to the mounted device, thereby preventing the mounted device from colliding with the ground. For this reason, a mounted device can be protected from damage or the like during a fall, and durability can be enhanced. In particular, the protective handle can be easily formed as an integrated structure, for example, by bending a metal rod, a pipe or the like, or by joining a plurality of bar members, etc. It is possible to realize a small and lightweight protective handle that doubles as a handle and a guard. And since this protective handle should just be attached to a tank main body, not only when assembling a new tank apparatus, but also with respect to the tank etc. which are already used, attachment work of a protective handle can be performed easily. .

  In addition, since the handle for carrying the tank body and the guard for protecting the mounted equipment can be shared as a protective handle, the number of parts can be reduced, the structure can be simplified, and cost reduction can be promoted. And since it is not necessary to protect the mounted equipment by housing the tank body in the housing as in the prior art or covering the tank body with, for example, a resin cover, the overall dimensions and weight can be reduced, It is possible to realize a portable tank device that is easy to handle and hardly breaks down.

Furthermore , since the tank body is formed as a cylindrical pressure vessel, it can be stably filled with high-pressure compressed gas. In this case, the cylindrical tank body easily rolls left and right when the length direction is the front and rear directions. However, for example, when the tank body falls to the left or right due to an external force, the protective handle can be brought into contact with the ground before the mounted device, thereby preventing the mounted device from colliding with the ground. can do. For this reason, a mounted device can be protected from damage or the like during a fall, and durability can be enhanced.

According to the invention of claim 2 , various mounting devices mounted on the upper part of the tank main body are arranged on the inside of the straight line connecting the protective handle and the outer peripheral surface of the tank main body, or the straight line connecting the protective handle and the support leg. Can fit in. As a result, when the tank body falls in the left or right direction, the protective handle can be brought into contact with the ground before the mounted device, so that the mounted device can be protected from collision with the ground.

According to the invention of claim 3 , the mounted device can be accommodated within the width dimension of the protective handle. In other words, the protective handle can protrude outward in the width direction from the mounted device, so that if the tank body falls to the left or right, the protective handle should be brought into contact with the ground before the mounted device. Can do.

Further, according to the invention of claim 4 , for example, by bending a metal rod, a pipe or the like, or by joining a plurality of bars, etc., each bent portion, connecting portion and fixed portion of the protective handle are formed as an integral structure. A small and lightweight protective handle that can be easily formed and serves as both a handle and a guard can be realized. And since it is only necessary to attach this protective handle to the upper part of the tank body, not only when assembling a new tank device, it is also easy to attach the protective handle to a tank that has already been used. Can do.

Furthermore, according to the invention of claim 5 , for example, a frame body that surrounds the filling port can be formed by each bent portion and the connecting portion of the protective handle. Thereby, not only when the tank body falls down but also when, for example, an obstacle collides with the tank body from the side or from above, the filling port can be protected from collision with the obstacle.

  Hereinafter, a portable tank apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  Here, FIG. 1 to FIG. 4 show a first embodiment. In this embodiment, an auxiliary tank filled with compressed air will be described as an example of a portable tank device.

  Reference numeral 1 denotes a tank-integrated air compressor. The air compressor 1 stores, for example, two air tanks 2 for storing compressed air, and sucks and compresses external air and discharges the compressed air into the air tanks 2. The compression unit 3 and a motor 4 that drives the compression unit 3 are roughly configured.

  Further, the air compressor 1 includes a discharge port 5 on the low pressure side that discharges the compressed air in the air tank 2 to a low pressure (general pressure), and the compressed air in the air tank 2 to a pressure higher than the general pressure. There is provided a discharge port 6 on the high pressure side for discharging under reduced pressure. When the air compressor 1 is used, a pneumatic device 9 described later is connected to one of the discharge ports 5 and 6 according to the operating pressure, and the compressed air in the air tank 2 is supplied to the pneumatic device 9. .

  Furthermore, the air compressor 1 is provided with an auxiliary discharge port 7 for discharging the compressed air in the air tank 2 toward an auxiliary tank 11 described later. An auxiliary tank 11 is detachably connected to the auxiliary discharge port 7 via a filling hose 8.

  On the other hand, 9 is a pneumatic device that is operated by air pressure, and the pneumatic device 9 is constituted by, for example, a nailing machine, a grinder, or the like. In this case, the low-pressure operation type pneumatic device is used by connecting to the discharge ports 5 and 15 of the air compressor 1 or the auxiliary tank 11, and the high-pressure operation type pneumatic device is connected to the discharge ports 6 and 18. used.

  Reference numeral 11 denotes an auxiliary tank as a portable tank device. The auxiliary tank 11 is used as an auxiliary air tank in a state where it is connected to the air compressor 1 or is removed from the air compressor 1. It is used as an air pressure source. The auxiliary tank 11 is roughly constituted by a tank body 12, a filling port 13, pressure reducing valves 14 and 17, discharge ports 15 and 18, pressure gauges 16 and 19, and a protective handle 21, which will be described later.

  Reference numeral 12 denotes a tank main body that constitutes a main body portion of the auxiliary tank 11. The tank main body 12 is formed as a cylindrical pressure vessel filled with compressed air, as shown in FIGS. 2 to 4, and extends in the horizontal direction. It is placed on the ground of the construction site in a state (horizontal state). In the following description, the direction along the length direction of the tank body 12 is defined as the front and rear directions, and the width direction of the tank body 12 is defined as the left and right directions.

  An attachment seat 12A made of, for example, an elongated metal plate is extended in the length direction of the tank body 12 on the upper portion of the tank body 12 arranged in a horizontal state. Various mounted devices are attached as shown in FIG. Further, for example, two mounting recesses 12B for attaching the protective handle 21 are provided in the longitudinal intermediate portion of the mounting seat portion 12A.

  On the other hand, for example, two support legs 12C that support the tank body 12 on both sides in the length direction are fixed to the lower portion of the tank body 12. As shown in FIG. 4, these support legs 12 </ b> C are formed of, for example, a U-shaped plate material or the like, and extend to the left and right sides with respect to the center of the tank body 12.

  In this case, the left and right width dimensions of the support leg 12 </ b> C are smaller than the diameter dimension of the tank body 12. The support legs 12C abut against the ground and support the tank body 12, thereby preventing the tank body 12 from falling to the left side or the right side.

  Next, various types of mounted devices mounted on the mounting seat 12A of the tank body 12 will be described.

  These mounted devices are constituted by a filling port 13, pressure reducing valves 14 and 17, discharge ports 15 and 18, pressure gauges 16 and 19 and a drain cock 20, which will be described later, and protrude upward from the mounting seat portion 12A. As shown in FIG. 4, each mounted device is disposed so as to fit between two straight lines L1 and L2 (inner side) connecting a protective handle 21 (described later) and the outer peripheral surface of the tank body 12, as well as protection. It arrange | positions so that it may fit in the width dimension W of the handle 21. FIG.

  Further, each mounted device will be described. First, reference numeral 13 denotes a filling port connected to the tank body 12. The filling port 13 is formed as a nozzle-like joint to which the filling hose 8 is detachably connected, and fills the tank body 12 with compressed air discharged from the air compressor 1.

  Here, the filling port 13 protrudes obliquely in the width direction of the tank main body 12, so that the filling hose 8 is easily connected to the filling port 13. Further, the filling port 13 is attached to, for example, an intermediate portion in the longitudinal direction of the mounting seat portion 12A, and is disposed between the U-shaped bent portions 22 and 23 of the protective handle 21 described later.

  14 is, for example, a low pressure reducing valve provided on the mounting seat 12A of the tank body 12, and the low pressure reducing valve 14 is used when compressed air in the tank body 12 is discharged from the discharge port 15 on the low pressure side. This compressed air is decompressed to a low pressure (general pressure).

  Here, as shown in FIG. 2, the low-pressure pressure reducing valve 14 is formed, for example, as a substantially box-shaped metal case or the like, and a casing 14A in which a valve mechanism (not shown) or the like is accommodated, and is operated above the casing 14A. And a setting knob 14B for variably setting the pressure after the pressure is reduced by the low pressure reducing valve 14.

  Reference numeral 15 denotes a low-pressure discharge port attached to the casing 14A of the low-pressure pressure reducing valve 14. The discharge port 15 is formed as a stepped cylindrical joint, for example, and is connected to the tank body 12 via the low-pressure pressure reducing valve 14. It is connected. When the auxiliary tank 11 is used, for example, the low-pressure operation type pneumatic device 9 is detachably connected to the discharge port 15 via a hose or the like, and the discharge port 15 is compressed air decompressed by the low-pressure pressure reducing valve 14. Is discharged and supplied to the pneumatic device 9.

  Reference numeral 16 denotes a pressure gauge attached to the casing 14A of the low pressure reducing valve 14. The pressure gauge 16 detects and displays the pressure of the compressed air discharged from the discharge port 15, from the low pressure reducing valve 14. Projecting in the width direction of the tank body 12.

  On the other hand, 17 is a high-pressure pressure reducing valve provided on the mounting seat portion 12A of the tank body 12. The high-pressure pressure reducing valve 17 is used when compressed air in the tank body 12 is discharged from the discharge port 18 on the high pressure side. The compressed air is depressurized to a pressure higher than the general pressure.

  The high-pressure reducing valve 17 has a casing 17A and a setting knob 17B in substantially the same manner as the low-pressure reducing valve 14, and the compressed air decompressed by the high-pressure reducing valve 17 is operated at high pressure in the casing 17A. A high-pressure side discharge port 18 that discharges toward the pneumatic device 9 of the mold and a pressure gauge 19 that detects the discharge pressure are provided.

  In this case, the pressure reducing valve 14 for high pressure and the pressure reducing valve 17 for high pressure are provided on both sides of the tank body 12 in the length direction so that pneumatic devices can be easily connected to the respective discharge ports 15 and 18, as shown in FIG. Are separated. Reference numeral 20 denotes a drain cock provided on the mounting seat portion 12A of the tank main body 12, and the drain cock 20 releases condensed water contained in the compressed air.

  Reference numeral 21 denotes a protective handle provided on the mounting seat portion 12A of the tank main body 12. The protective handle 21 is integrally formed by bending a rod-shaped material made of, for example, a metal rod, a pipe or the like, and carries the auxiliary tank 11. It is formed as a part that doubles as a handle that is sometimes gripped and a guard that protects the mounted device. The protective handle 21 is generally constituted by U-shaped bent portions 22 and 23, a connecting portion 24, and a fixing portion 25, which will be described later.

Here, in FIG. 4, for example, when the tank body 12 falls to the left side, a straight line connecting the portions where the protective handle 21 and the outer peripheral surface of the tank body 12 are in contact with the ground is defined as a first straight line L1. If the straight line connecting the parts where the protective handle 21 and the outer peripheral surface of the tank main body 12 are in contact with the ground when the 12 falls to the right side is defined as a second straight line L2, the protective handle 21 is connected to the straight line L1. , L2 is formed so that all mounted devices can be accommodated inside. In this case, the width dimension W in the left and right directions of the protective handle 21 is formed such that all the mounted devices are within the width dimension W.

  Thereby, for example, when the tank body 12 falls to the left side, a part of the protective handle 21 (one-side end portions 22A and 23A and connecting portions 24 of U-shaped bent portions 22 and 23 described later) is mounted on each mounted device. Since it contacts the ground earlier than that, for example, the mounted device such as the filling port 13 can be protected from collision with the ground.

  Further, when the tank body 12 falls to the right side, the folded portions 22B and 23B of the U-shaped bent portions 22 and 23 come into contact with the ground before each mounted device. The on-board equipment can be protected from collision with the ground.

  Reference numerals 22 and 23 denote two U-shaped bent portions formed by bending, for example, a laterally substantially U-shape (or U-shape), and these U-shaped bent portions 22 and 23 are illustrated in FIGS. As shown in FIG. 4, the tank body 12 is spaced apart in the length direction and protrudes upward from the mounting seat portion 12A. Further, the U-shaped bent portions 22 and 23 are formed with a width dimension W, and protrude on both sides in the width direction with respect to the mounted device.

  Here, one bent portion 22 of the U-shaped bent portions 22 and 23 is formed, for example, by folding a bar extending in the width direction of the tank body 12 in the middle, and one end portion 22A thereof. For example, as compared with the filling port 13 located on the leftmost side in FIG.

  Further, the intermediate portion in the longitudinal direction of the U-shaped bent portion 22 is a folded portion 22B that is folded in a substantially U-shape, a U-shape, etc., for example, and the folded end 22B is, for example, Of these, the pressure gauges 16 and 19 located on the rightmost side are protruded to the right by a fixed protrusion dimension T2.

  Further, a fixing portion 25 described later is provided at the other end 22C of the U-shaped bent portion 22. Further, the other U-shaped bent portion 23 is formed with a bent shape substantially the same as the U-shaped bent portion 22, and has one side end portion 23A, a folded portion 23B, and the other side end portion 23C.

  These U-shaped bent portions 22 and 23 are arranged between the low pressure reducing valve 14 and the high pressure reducing valve 17 which are separated from each other in the length direction of the tank body 12 as shown in FIG. Thereby, the protective handle 21 can be compactly arranged inside the pressure reducing valves 14 and 17, and the size reduction of the auxiliary tank 11 can be promoted.

  Moreover, the U-shaped bent portions 22 and 23 are disposed on both sides of the filling port 13, and the U-shaped bent portions 22 and 23 and the connecting portion 24 are substantially U-shaped frame bodies surrounding the filling port 13. Is configured. For this reason, for example, even when an obstacle or the like collides with the auxiliary tank 11 from the side or from above, the filling port 13 can be protected from the collision.

  Reference numeral 24 denotes a connecting portion for connecting the one end portions 22A and 23A of the U-shaped bent portions 22 and 23 to each other. The connecting portion 24 is a portion to be gripped when carrying the auxiliary tank 11, and is located above the tank main body 12. In addition to extending in the length direction at a position away from the filling port 13, it is disposed at a position protruding leftward from the filling port 13 by a protruding dimension T 1.

  Reference numeral 25 denotes a fixing portion integrally formed with the other end portions 22C and 23C of the U-shaped bent portions 22 and 23, respectively. These fixing portions 25 are, for example, welded portions 26 of the tank body 12 as shown in FIG. Each U-shaped bent portion 22, 23 is fixed to the mounting seat portion 12A by welding to each mounting recess 12B.

  The auxiliary tank 11 according to the present embodiment has the above-described configuration, and the operation thereof will be described next.

  First, when the auxiliary tank 11 is used, the filling port 13 is connected to the auxiliary discharge port 7 of the air compressor 1 by the filling hose 8 to operate the compressor. Thereby, the auxiliary tank 11 can be filled with the compressed air discharged from the compressor.

  For example, when the pneumatic device 9 such as a nailing machine is used in a place away from the compressor, the auxiliary tank 11 is detached from the filling hose 8 and the protective handle 21 is gripped to thereby remove the auxiliary device 11 from the pneumatic device 9. Can be carried together to the desired location.

  For example, when the low-pressure operation type pneumatic device 9 is used, this is connected to the discharge port 15 on the low-pressure side and the pressure reducing valve 14 is operated. Further, when the high-pressure operation type pneumatic device 9 is used, it is connected to the discharge port 18 on the high-pressure side and the pressure reducing valve 17 is operated. Thereby, the pneumatic device 9 can be operated with an appropriate pressure, and various operations can be performed.

  In this case, since the tank body 12 is formed as a cylindrical pressure vessel, even when the support leg 12C is attached, the tank body 12 may fall to the left side or the right side, for example, by contact with an operator or the like. However, even if the tank body 12 falls, the U-shaped bent portions 22 and 23 and the connecting portion 24 of the protective handle 21 come into contact with the ground prior to the mounted device, so that, for example, the filling port 13 and the pressure gauges 16 and 19 Etc. can be reliably protected from collision with the ground.

  Thus, according to the present embodiment, since the protective handle 21 is provided on the mounting seat portion 12A of the tank body 12, the auxiliary tank 11 can be easily moved to a desired place by gripping the protective handle 21. Can be carried around.

  At the destination, for example, even if the auxiliary tank 11 falls to the left or right, mounted devices such as the filling port 13, the pressure reducing valves 14 and 17, the discharge ports 15 and 18, and the pressure gauges 16 and 19 collide with the ground. Since it can be surely prevented by the protective handle 21, these mounted devices can be protected from damage or the like during a fall, and durability can be enhanced.

  In this case, the handle for carrying the tank body 12 and the guard for protecting the mounted device can be shared as the protective handle 21, so the number of parts can be reduced, the structure can be simplified, and cost reduction can be promoted. And since it is not necessary to protect the mounted equipment by housing the tank body in the housing as in the prior art or covering the tank body with, for example, a resin cover, the overall dimensions and weight can be reduced, The auxiliary tank 11 which is easy to handle and hardly breaks down can be realized.

  In this case, the mounted device is disposed so as to be within the straight lines L1 and L2 connecting the protective handle 21 and the outer peripheral surface of the tank body 12, and is disposed so as to be within the width dimension W of the protective handle 21. For example, the one side end portions 22A and 23A of the U-shaped bent portions 22 and 23, the folded portions 22B and 23B, the connecting portion 24 and the like can be protruded outward from the mounted device, and these portions have a function as a guard. Can be given.

  Further, since the protective handle 21 is formed by, for example, bending a metal rod, a pipe or the like, the U-shaped bent portions 22, 23, the connecting portion 24, and the fixing portion 25 are easily processed and formed as an integrated structure. Thus, a small and lightweight protective handle 21 that serves both as a handle and a guard can be realized. Since this protective handle 21 only needs to be attached to the mounting seat 12A of the tank body 12, the protective handle is not only used for assembling a new auxiliary tank 11, but also for the auxiliary tank 11 already used. The attachment work 21 can be easily performed.

  By attaching the protective handle 21 to the upper portion of the tank body 12 (the mounting seat portion 12A), when the auxiliary tank 11 is assembled, the protective handle 21 is easily pressed against the mounting seat portion 12A from above. It can be welded, and assembly work can be performed efficiently.

  Further, since the U-shaped bent portions 22 and 23 are provided in the protective handle 21, the connecting portions 24 can be provided at the one side end portions 22 </ b> A and 23 </ b> A at positions that are easily separated from the tank body 12. . Further, since the fixing portions 25 fixed to the tank main body 12 side can be respectively disposed on the other end portions 22C and 23C of the U-shaped bent portions 22 and 23, the protective handle 21 is provided at two locations in the length direction. It can be stably attached to the tank body 12, and the strength as a handle and a guard can be increased.

  On the other hand, since the filling port 13 is disposed between the U-shaped bent portions 22 and 23, a frame body surrounding the filling port 13 can be formed by the U-shaped bent portions 22 and 23 and the connecting portion 24. it can. Thereby, not only when the auxiliary tank 11 falls, but also when, for example, an obstacle collides with the auxiliary tank 11 from the side or above, the filling port 13 can be protected from the collision, and the durability can be improved. Can be increased.

  Next, FIGS. 5 to 7 show a second embodiment according to the present invention, and the feature of this embodiment is that the protective handle is configured to extend over almost the entire length of the tank body. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  31 is a protective handle fixed to the mounting seat portion 12A 'of the tank body 12, and the protective handle 31 is integrally formed by bending, for example, a rod-like metal material, as in the first embodiment. L-shaped bent portions 32 and 33, a connecting portion 34, and a fixing portion 35, which will be described later, are roughly configured.

  Then, as shown in FIG. 7, the protective handle 31 is formed so that all the mounted devices are accommodated inside two straight lines L1 'and L2' that connect the protective handle 31 and the outer peripheral surface of the tank body 12. . Further, the width dimension W ′ in the left and right directions of the protective handle 31 is formed such that all the mounted devices can be accommodated within the width dimension W ′.

  However, as shown in FIGS. 5 and 6, the protective handle 31 is formed longer than the first embodiment, and has a length dimension substantially equal to the mounting seat 12 </ b> A ′ in the length direction of the tank body 12. It extends.

  32 and 33 are, for example, two L-shaped bent portions formed by bending in an approximately L-shape (or J-shape) or the like, and these L-shaped bent portions 32 and 33 are the length of the tank body 12. The pressure reducing valve 14 and the high pressure reducing valve 17 which are spaced apart from each other in the direction are disposed at positions substantially equal to or outside the pressure reducing valves 14 and 17 and project upward from the mounting seat 12A ′. .

  One of the L-shaped bent portions 32, 33 is located on one side (upper side) as shown in FIG. 5 and FIG. A vertical bar portion 32A disposed in the vicinity of the pressure reducing valve 14, the discharge port 15 and the pressure gauge 16, and a bent portion in a substantially L shape from the other side (lower side) of the vertical bar portion 32A. It is comprised by the horizontal bar part 32B extended in a horizontal direction toward part 12A '.

  The other L-shaped bent portion 33 is composed of a vertical bar portion 33A and a horizontal bar portion 33B in substantially the same manner as the L-shaped bent portion 32, and includes a high-pressure pressure reducing valve 17, a discharge port 18, and a pressure gauge. 19 is arranged in the vicinity.

  The vertical bar portions 32A, 33A of the L-shaped bent portions 32, 33 are substantially the same as the U-shaped bent portions 22, 23 (folded portions 22B, 23B) of the first embodiment, as shown in FIG. Similarly, for example, it is disposed at a position protruding to the right side by a certain protruding dimension T2 ′ from the pressure gauges 16 and 19, and further faces the pressure gauges 16 and 19.

  As described above, the L-shaped bent portions 32 and 33 are erected in the vicinity of or outside the low-pressure pressure reducing valve 14 and the high-pressure pressure reducing valve 17 with respect to the length direction of the tank main body 12. Is covered from the outside in the width direction. For this reason, for example, even when an obstacle or the like collides with the auxiliary tank 11 from the side or from above, the devices such as the pressure reducing valves 14 and 17, the discharge ports 15 and 18, and the pressure gauges 16 and 19 are protected from the collision. Can do.

  Reference numeral 34 denotes a connecting portion for connecting the vertical bar portions 32A and 33A of the L-shaped bent portions 32 and 33 to each other. The connecting portion 34 is gripped when carrying the auxiliary tank 11 in the same manner as in the first embodiment. It extends in the length direction at a position away from the tank body 12 upward.

  Further, as shown in FIGS. 6 and 7, the connecting portion 34 is formed to be bent in a crank shape, for example, and is bent in a substantially U shape at a position surrounding the filling port 13 at an intermediate portion in the longitudinal direction. A bent portion 34A is provided. The bent portion 34A is substantially the same as the U-shaped bent portions 22 and 23 (one side end portions 22A and 23A) of the first embodiment, for example, by a fixed projecting dimension T1 'from the filling port 13, for example. Projects to the left.

  Reference numeral 35 denotes fixed portions integrally formed with the horizontal bar portions 32B and 33B of the L-shaped bent portions 32 and 33. These fixed portions 35 are substantially the same as in the first embodiment as shown in FIG. For example, the welded portions 36 are welded to both end sides of the mounting seat portion 12A ′ of the tank body 12 respectively.

  Thus, in the present embodiment configured as described above, it is possible to obtain substantially the same operational effects as those of the first embodiment. In this case, when the tank body 12 falls to the left or right side, the vertical bar portions 32A and 33A of the L-shaped bent portions 32 and 33 and the bent portion 34A of the connecting portion 34 are brought into contact with the ground before the mounted device. This can protect the on-board equipment.

  In particular, in the present embodiment, the protective handle 31 is formed to have a length that is substantially equal to the mounting seat portion 12A ′ of the tank body 12, and the L-shaped bent portions 32 and 33 are located near or outside the pressure reducing valves 14 and 17. It is set as the structure arrange | positioned in.

  Accordingly, the L-shaped bent portion 32 on the low pressure side can be erected in the vicinity of the pressure reducing valve 14, the discharge port 15, and the pressure gauge 16, and the connecting portion 34 can be extended from the upper side thereof. Even when the vehicle collides from the side or from above, the low-pressure-side mounted device can be protected by the L-shaped bent portion 32 and the connecting portion 34.

  Similarly, the L-shaped bent portion 33 on the high pressure side can be set up in the vicinity of the pressure reducing valve 17, the discharge port 18 and the pressure gauge 19. The guard function of the protective handle 31 can be further enhanced.

  Further, since the connecting portion 34 is provided with a substantially U-shaped bent portion 34A surrounding the filling port 13, the bent portion 34A protects the filling port 13 against a collision from the side or above. be able to.

  Next, FIGS. 8 and 9 show a third embodiment according to the present invention, and the feature of this embodiment is that the support leg is formed wider than the tank body. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  Reference numeral 41 denotes a tank main body constituting the main body portion of the auxiliary tank 11 '. The tank main body 41 is formed as a cylindrical pressure vessel in substantially the same manner as in the first embodiment, and includes a mounting seat 41A and a mounting recess. 41B, support legs 41C, and the like. However, as shown in FIGS. 8 and 9, the support leg 41C is formed with a width dimension Wb larger than the width dimension (diameter dimension) Wa of the tank body 41 (Wb> Wa). Protruding.

  The protective handle 21 is formed so that all the mounted devices fit between two straight lines L1 ″ and L2 ″ that connect the end of the support leg 41C in the width direction and the protective handle 21. In this case, the straight line L1 ″ is defined in FIG. 9 as a straight line connecting the parts where the protective handle 21 and the left end of the support leg 41C are in contact with the ground when the tank body 41 falls to the left side, for example. Further, the straight line L2 ″ is defined as a straight line connecting a portion where the protective handle 21 and the right end of the support leg 41C are in contact with the ground when the tank body 41 falls to the right side.

  Thus, in the present embodiment configured as described above, it is possible to obtain substantially the same operational effects as those of the first embodiment. In particular, in this embodiment, since the width dimension Wb of the support leg 41C is formed larger than the width dimension Wa of the tank body 41, the tank body 41 can be more stably supported by the support leg 41C, and the auxiliary tank 11 ' It is possible to make the structure difficult to fall.

  In each of the above embodiments, the cylindrical tank bodies 12 and 41 are used. However, the tank body of the present invention is not limited to a cylindrical shape, and for example, a spherical tank body may be used.

  In the embodiment, the protective handles 21 and 31 are integrally formed using, for example, a metal rod, a pipe, or the like. However, the present invention is not limited to this. For example, a protective handle may be formed by joining a plurality of bar members and the like, and this may be welded to the tank body.

  Further, in the embodiment, the filling port 13, the pressure reducing valves 14, 17, the discharge ports 15, 18, the pressure gauges 16, 19, and the drain cock 20 have been described as examples of mounting devices mounted on the tank body 12. However, the type, number, etc. of the mounted equipment are not limited to the embodiment, and can be applied to a portable tank apparatus in which only a part of these equipment is mounted or other equipment is mounted. Of course.

  Moreover, in embodiment, the auxiliary | assistant tank 11 filled with compressed air was mentioned as an example and demonstrated as a portable tank apparatus. However, the present invention is not limited to this, and may be applied to a portable tank device that is filled with compressed gas other than air. Moreover, it can apply widely not only to an auxiliary tank but to various portable tank apparatuses.

It is a perspective view which shows the auxiliary tank by the 1st Embodiment of this invention with an air compressor. It is a perspective view which shows the auxiliary tank in FIG. It is the top view which looked at the auxiliary tank of FIG. 2 from the upper side. It is the left view which looked at the auxiliary tank of FIG. 2 from the left side. It is a perspective view which shows the auxiliary | assistant tank by the 2nd Embodiment of this invention. It is the top view which looked at the auxiliary tank of FIG. 5 from the upper side. It is the left view which looked at the auxiliary tank of FIG. 5 from the left side. It is a top view which shows the auxiliary tank by the 3rd Embodiment of this invention. It is the left view which looked at the auxiliary tank of FIG. 8 from the left side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air compressor 2 Air tank 7 Auxiliary discharge port 9 Pneumatic apparatus 11, 11 'Auxiliary tank (portable tank apparatus)
12, 41 Tank body 12A, 12A ', 41A Mounting seat 12B, 41B Mounting recess 12C, 41C Support leg 13 Filling port (mounted equipment)
14, 17 Pressure reducing valve (equipped equipment)
15, 18 Discharge port (equipped equipment)
16, 19 Pressure gauge (equipment)
21, 31 Protective handle 22, 23 U-shaped bent part (bent part)
22A, 23A One end portion 22B, 23B Folding portion 22C, 23C Other end portion 24, 34 Connection portion 25, 35 Adhering portion 26, 36 Welding portion 32, 33 L-shaped bending portion (bending portion)
32A, 33A Vertical bar part 32B, 33B Horizontal bar part 34A Bending part L1, L2, L1 ', L2', L1 ", L2" Straight line W, W 'Width dimension T1, T2, T1', T2 'Projection dimension

Claims (5)

A tank body which is formed as a cylindrical pressure vessel extending in the front and rear directions and is supported on the ground by being supported by a support leg, and a mounting device including a pressure reducing valve and a discharge port provided on the upper part of the tank body In the portable tank device configured by
The tank body is provided with a protective handle that protects the mounted device by contacting the ground prior to the mounted device when the tank body falls to the left or right.
The protective handle includes two bent portions formed by bending and a connecting portion that connects one side of these bent portions to each other, and the bent portion is provided on the other side of each bent portion. The tank body is provided with a fixing portion that is fixed in the length direction of the bent portion, and when the tank body falls to the left, the portion where the protective handle contacts the ground, and the portion where the outer peripheral surface of the tank body contacts the ground The first straight line is the first straight line, and when the tank body falls to the right, the second part is the straight line connecting the part where the protective handle is in contact with the ground and the part where the outer peripheral surface of the tank body is in contact with the ground. when a straight line, the mounting device portable tank device being characterized in that a structure that will be disposed between the first straight line and the second straight line. The portable tank device according to claim 1 , wherein the mounted device is disposed so as to be located inside a straight line connecting the protective handle and the outer peripheral surface of the tank body or the support leg. The portable tank device according to claim 1 or 2 , wherein the mounted device is arranged so as to be within a width dimension in the left and right directions of the protective handle. The portable tank apparatus according to claim 1, 2, or 3 , wherein the bent portion is formed to be bent in a U shape or an L shape. The portable tank apparatus according to claim 4 , wherein a filling port for filling the tank main body with a compressed gas is provided between the bent portions of the protective handle.

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