JP2012219780A - Compressor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve durability of a compressor device by preventing powder dust or the like from entering a cylinder.SOLUTION: A motor with a cooling fan and a compressor body are stored in a storage case. The sidewall of the storage case includes a first sidewall part with an air inlet formed thereon and a second sidewall part which is orthogonal to the first sidewall part and including an air outlet formed thereon. The motor with the cooling fan is mounted while arranging the cooling fan to face the air inlet. The cylinder of the compressor body is mounted such that axial one end side of the cylinder where a piston is inserted is opened as an air supply port, and the head of the other end side of the cylinder is directed toward the air outlet. In the storage case, a shielding plate is provided to block air from the air inlet from flowing toward the air supply port of the cylinder.

Description

  The present invention is suitable for puncture emergency repairs in which a sealing agent and compressed air are sequentially fed into a punctured tire to perform puncture repairs in an emergency manner, and in particular, the entry of dust and the like into the cylinder is suppressed and durability is improved. The present invention relates to an improved compressor device.

  As a compressor device for puncture emergency repair, the present inventor has proposed a structure as shown in FIG. 10, for example. The compressor device a includes at least a motor c and a compressor body d that are stored in a storage case b.

  The motor c has an output shaft c2 on one end side of the motor body c1 and a cooling fan c3 for cooling the motor on the other end side, and the cooling fan c3 is provided on the side wall b1 of the storage case b. It is attached to face b1a. The compressor body d houses a piston d1 connected to the output shaft c2 of the motor c via a crank mechanism e, and accommodates the piston d1 in a reciprocating manner, and forms a pump chamber with the piston d1. A cylindrical cylinder d2. The cylinder d2 has an axial direction one end side into which the piston d1 is inserted as an air supply port d2a to the pump chamber, and a head portion d2b on the other axial end side in which the pump chamber is disposed, It is attached toward the air discharge port b2a of the side wall portion b2 which is perpendicular to the side wall portion b1 and has an air discharge port b2a opened.

  Therefore, the air that flows in from the air inlet b1a by the cooling fan c3 branches into two flow paths g1 and g2 that pass through one side and the other side of the motor body c1, and each air outlet b2a. Exhausted from.

  On the other hand, since the compressor device for puncture emergency repair is used outdoors, the air flowing in from the air inlet b1a contains dust and the like. However, since one of the flow paths g1 and g2 passes through the air supply port d2a of the cylinder d2, the dust or the like easily enters the cylinder from the air supply port d2a, and the compressor device It may cause a decrease in durability, such as inducing a failure.

  As a compressor device for puncture emergency repair, the following Patent Document 1 is also proposed.

JP 2005-344570 A

  Therefore, the present invention is based on the provision of a shielding plate that prevents the air from the air intake port from flowing toward the air supply port of the cylinder, and prevents the dust and the like from entering the cylinder. An object of the present invention is to provide an improved compressor device.

In order to solve the above-mentioned problem, the invention of claim 1 of the present application provides a storage case,
A motor with a cooling fan in which an output shaft is arranged on one end side of the motor body and a cooling fan is arranged on the other end side;
And a piston connected to the output shaft via a crank mechanism, and a cylindrical cylinder that accommodates the piston in a reciprocating manner and forms a pump chamber for compressing air with the piston. A compressor device containing a compressor body,
The storage case has a flat rectangular box shape in which a rectangular peripheral frame surrounding four sides with side walls is closed by an upper plate portion and a lower plate portion, and the side wall portion is provided with a first air inlet. And a second side wall portion orthogonal to the first side wall portion and provided with an air discharge port,
The motor with a cooling fan is mounted with the cooling fan facing the air inlet of the first side wall,
In the cylinder, one axial end side into which the piston is inserted opens as an air supply port to the pump chamber, and a head on the other axial end side in which the pump chamber is arranged is the second side wall. Installed toward the air outlet of the
In addition, the storage case is provided with a shielding plate that prevents air from the air suction port from flowing toward the air supply port of the cylinder.

According to a second aspect of the present invention, the shield plate is a first shield plate extending across the motor body from the fourth side wall portion parallel to the second side wall portion toward the second side wall portion. And a second shielding plate that extends across the cylinder from the third side wall portion parallel to the first side wall portion toward the first side wall portion and intersects the first shielding plate portion An L-shape consisting of
By surrounding the air supply port with the first and second shielding plate portions and the third and fourth side wall portions, air from the air intake port is prevented from flowing toward the air supply port. It is characterized by doing.

According to a third aspect of the present invention, the second air discharge port is provided in the third side wall portion parallel to the first side wall portion and in the vicinity of the fourth side wall portion parallel to the second side wall portion. While providing
The shield plate has a third shield plate portion extending in parallel with the fourth sidewall portion with a gap from the fourth sidewall portion, and a first sidewall portion side of the third shield plate portion. From the end portion, a side wall of the motor body or a fourth shielding plate portion extending from the side wall to the vicinity thereof and extending toward the first side wall portion side is formed,
A part of the air from the air suction port is guided along the inner surface of the fourth side wall and away from the air supply port, so that the air from the air suction port flows toward the air supply port. It is characterized by obstructing.

  As described above, according to the present invention, the storage case is provided with a shielding plate that prevents the air from the air suction port from flowing toward the air supply port of the cylinder. Accordingly, when used outdoors, dust and the like contained in the air from the air intake port can be prevented from entering the cylinder through the air supply port, and the durability of the compressor device can be improved. Become.

It is a perspective view which shows one Example of the puncture repair kit using the compressor apparatus of this invention. It is a perspective view which shows a compressor apparatus. It is a top view which shows the internal structure of a compressor apparatus. It is a disassembled perspective view which shows a compressor main body. It is a fragmentary sectional view which shows the principal part of a compressor main body. (A) is a top view which shows the flow of the air in a compressor apparatus, (B) is sectional drawing which shows the small clearance gap between shielding plates. It is a top view which shows the other example of a shielding board. It is sectional drawing which shows a bottle unit. It is a side view which shows the direct connection of a bottle unit and a compressor apparatus. It is a top view which shows the internal structure of the compressor apparatus explaining the problem to be solved.

  Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 illustrates a case where the compressor device 2 of the present invention is used as a compressor device of a puncture repair kit 1 that promptly repairs a puncture by sequentially feeding a sealing agent and compressed air into a punctured tire T.

  In FIG. 1, the puncture repair kit 1 includes a compressor device 2 and a bottle unit 3. The bottle unit 3 includes a bottle container 4 containing a puncture sealing agent, and a cap 6 attached to the mouth 4A. In this example, the compressor device 2 and the bottle unit 3 are directly connected without interposing hoses at the puncture repair site, and the sealing agent / compressed air outlet 7 provided in the bottle unit 3 The other end of the feed hose 39, one end of which is connected to the air valve Tv of the tire T, is connected. The storage hose 39 is wound around the cap 6 in a state of being connected to the sealing agent / compressed air outlet 7 when stored.

  Next, as shown in FIGS. 2 and 3, the compressor device 2 stores at least a motor M with a cooling fan and a compressor body 13 in a storage case 9.

  The storage case 9 has a flat rectangular box shape with a small height in which a rectangular peripheral frame surrounding four sides with a side wall portion 20 is closed by an upper plate portion 22U and a lower plate portion 22L. The side wall part 20 includes a first side wall part 20A provided with an air inlet 23, a second side wall part 20B orthogonal to the first side wall part 20A and provided with an air outlet 24, and the second side wall part. It comprises a fourth side wall portion 20D parallel to the portion 20B and a third side wall portion 20C parallel to the first side wall portion 20A. In the present example, the second side wall portion 20B is composed of an inner side wall portion 20Bi and an outer side wall portion 20Bo, and a cord housing space 25 is formed between which the power cord 26 is detachably accommodated. Note that an air discharge port 24 is formed in each of the inner and outer side wall portions 20Bi and 20Bo, and the air discharge port 24 provided in the outer side wall portion 20Bo is also used to put in and out the power cord 26. In addition, the storage case 9 is formed to be separable into upper and lower case portions 9U and 9L in this example from the viewpoint of assembly workability.

  As the motor M with a cooling fan, various commercially available DC motors that operate with a 12V DC power source of an automobile can be used. In the motor M with a cooling fan, an output shaft M2 is disposed on one end side of the motor body M1, and a cooling fan M3 is disposed on the other end side. The power cord 26 provided with a power plug 26A that can be connected to a cigar socket 27 of an automobile is connected to the motor M with a cooling fan via a power switch SW of the compressor device 2.

  Next, as shown in FIGS. 4 and 5, the compressor main body 13 accommodates the piston 10 connected to the output shaft M <b> 2 via the crank mechanism 17 and reciprocally accommodates the piston 10. 10 and a cylindrical cylinder 12 that forms a pump chamber 11 for compressing air.

  One end of the cylinder 12 in the axial center direction where the piston 10 is inserted opens as an air supply port 14 to the pump chamber 11. In the present embodiment, the head 12A on the other axial end side is formed with the pump chamber 11 and a surge chamber 15 connected to the pump chamber 11 to reduce the pulsation of compressed air. Further, on the peripheral wall of the surge chamber 15, there are a first connecting portion 19A for attaching a pressure gauge 28, a second connecting portion 19B for attaching a relief valve 29, and a connecting portion 18 for directly connecting to the bottle unit 3. They are projected in different directions. The piston 10 is provided with a known one-way valve 16 for supplying air into the pump chamber 11 through the air supply port 14.

  The motor M with the cooling fan is mounted with the cooling fan M3 facing the air inlet 23 of the first side wall portion 20A, and the cylinder 12 has the head portion 12A attached to the second side wall portion 20B. It is attached toward the air discharge port 24.

  In the present invention, the storage case 9 is provided with a shielding plate 60 that prevents the air from the air inlet 23 from flowing toward the air supply port 14 of the cylinder 12, thereby being included in the air. Dust and the like enter the cylinder 12 from the air supply port 14 and suppress the deterioration of the durability of the compressor device 2.

  As this shielding plate 60, in this example, as shown in FIG. 6A, a first shielding plate extending across the motor body M1 from the fourth side wall portion 20D toward the second side wall portion 20B. 61A and a second shielding plate portion 61B extending across the cylinder 12 from the third side wall portion 20C toward the first side wall portion 20A and intersecting the first shielding plate portion 61A. It is L-shaped.

  Such a shielding plate 60 surrounds the air supply port 14 with the first and second shielding plate portions 61A and 61B and the third and fourth side wall portions 20C and 20D, thereby allowing the air suction. Air from the port 23 can be prevented from flowing toward the air supply port 14.

  In this case, if the air supply port 14 is sealed by the first and second shielding plate portions 61A and 61B and the third and fourth side wall portions 20C and 20D, the air supply port 14 and the pump chamber are sealed. 11 is not supplied with air. For this reason, it is preferable to provide an air passage opening 62 in the first shielding plate portion 61A. As shown in FIG. 6B, the flow-through port 62 is arranged in the shielding plate portion 61A1 arranged in the upper case portion 9U in the first shielding plate portion 61A and the lower case portion 9L. It is preferable that a small gap G is provided between the edge of the shielding plate portion 61A2 and the flow opening 62 is formed by the small gap G. The small gap G is preferably in the range of 0.5 to 3.0 mm. When the gap is less than 0.5 mm, the supply of air to the pump chamber 11 becomes insufficient. Can not be shielded. Note that it is preferable not to provide the small gap G in the second shielding plate portion 61B.

  As another example of the shielding plate 60, the one shown in FIG. In this case, a second air discharge port 63 is formed in the third side wall portion 20C and in the vicinity of the fourth side wall portion 20D. Further, as the shielding plate 60, a third shielding plate portion 64A extending in parallel with the fourth sidewall portion 20D with a gap K between the fourth sidewall portion 20D and the third shielding plate portion 64A. It is formed as a rectangular shape consisting of a fourth shielding plate part 64B extending from the end part on the first side wall part 20A side to the side surface of the motor main body M1 or the vicinity thereof so as to incline toward the first side wall part side. The

  In the case of this shielding plate 60, instead of the conventional flow path g1, a part of the air from the air suction port 23 is guided along the inner surface of the fourth side wall portion 20D, and the second air discharge port 63 is provided. It is possible to form a flow path g3 exhausting from the air. Since the flow path g3 passes through a position away from the air supply port 14, air from the air suction port 23 can be prevented from flowing toward the air supply port 14. The second air discharge port 63 is preferably formed on the lower case portion 9L side so as not to be blocked by the bottle unit 3.

  Next, as shown in FIG. 8, the bottle unit 3 includes a bottle container 4 containing a puncture sealing agent, and a cap 6 attached to the mouth 4A.

  The bottle container 4 protrudes from the lower end of the body portion 30 with a small-diameter cylindrical mouth portion 4A through which a puncture sealing agent can be taken in and out. The cap 6 can be directly connected to the connecting portion 18 of the compressor apparatus 2 and an air intake port 50 for sending compressed air from the connecting portion 18 into the bottle container 4. 4 is provided with a sealing agent / compressed air outlet 7 for sequentially taking out a puncture sealing agent and compressed air.

  Specifically, the cap 6 is a cap body that integrally includes a bottom plate portion 31 forming a bottom surface, a bottle mounting portion 32 to which the mouth portion 4A of the bottle container 4 is attached, and a constricted portion 33 disposed therebetween. 6A. In the cap body 6A, the first flow path 35 extending from the air intake port 50 to the mouth 4A of the bottle container 4 and the sealing agent / compressed air take-out port 7 to the bottle container 4 A second flow path 36 extending into the mouth portion 4A is formed. The first flow path 35 is provided with a one-way valve 40 that prevents the puncture sealing agent from flowing back to the compressor side.

  In the present example, the air intake port 50 is a connection nozzle 41 protruding from the constricted portion 33 toward the connection portion 18, and as shown in FIG. 9, the connection nozzle 41 is connected to the connection portion 18. It is connected directly by fitting in the center hole.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

2 Compressor device 9 Storage case 10 Piston 11 Pump chamber 12 Cylinder 12A Head 13 Compressor body 14 Air supply port 17 Crank mechanism 20 Side wall part 20A First side wall part 20B Second side wall part 22U Upper plate part 22L Lower plate part 23 Air inlet 24 Air outlet 60 Shield plate 61A First shield plate portion 61A Second shield plate portion 64A First shield plate portion 64A Second shield plate portion M Motor M1 with cooling fan Motor body M2 Output shaft M3 cooling fan

Claims (3)

In the storage case,
A motor with a cooling fan in which an output shaft is arranged on one end side of the motor body and a cooling fan is arranged on the other end side;
And a piston connected to the output shaft via a crank mechanism, and a cylindrical cylinder that accommodates the piston in a reciprocating manner and forms a pump chamber for compressing air with the piston. A compressor device containing a compressor body,
The storage case has a flat rectangular box shape in which a rectangular peripheral frame surrounding four sides with side wall portions is closed by an upper plate portion and a lower plate portion, and the side wall portion is provided with an air suction port. And a second side wall portion orthogonal to the first side wall portion and provided with an air discharge port,
The motor with a cooling fan is mounted with the cooling fan facing the air inlet of the first side wall,
In the cylinder, one axial end side into which the piston is inserted opens as an air supply port to the pump chamber, and a head on the other axial end side in which the pump chamber is arranged is the second side wall Installed toward the air outlet of the
In addition, the compressor case is characterized in that the storage case is provided with a shielding plate that prevents air from the air suction port from flowing toward the air supply port of the cylinder. The shield plate includes a first shield plate portion extending across the motor body from the fourth sidewall portion parallel to the second sidewall portion toward the second sidewall portion, and the first sidewall. An L-shape comprising a second shielding plate portion extending from the third sidewall portion parallel to the first portion to the first sidewall portion, crossing the cylinder and intersecting the first shielding plate portion. None,
By surrounding the air supply port with the first and second shielding plate portions and the third and fourth side wall portions, air from the air intake port is prevented from flowing toward the air supply port. The compressor device according to claim 1, wherein: A second air outlet is provided in the third side wall parallel to the first side wall and in the vicinity of the fourth side wall parallel to the second side wall;
The shield plate has a third shield plate portion extending in parallel with the fourth sidewall portion with a gap from the fourth sidewall portion, and a first sidewall portion side of the third shield plate portion. From the end portion, a side wall of the motor body or a fourth shielding plate portion extending from the side wall to the vicinity thereof and extending toward the first side wall portion side is formed,
A part of the air from the air suction port is guided along the inner surface of the fourth side wall and away from the air supply port, so that the air from the air suction port flows toward the air supply port. The compressor apparatus according to claim 1, wherein

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