JP2008221785A - Pump-up device and sealing pump-up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing pump-up device which can further eliminate the vexatious complication of a device assembling step than ever. <P>SOLUTION: A compressor 200 for generating compressed air, and a casing 11, which forms an outer hull of the sealing pump-up device 10, are integrally formed. When the compressor 200 is assembled, the compressor is provided in a casing 11. Thus, the vexatious complication of the step of assembling the sealing pump-up device 10 is eliminated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a pump-up device that feeds compressed air into a pneumatic tire to increase the internal pressure of the pneumatic tire, and a sealing agent that seals the punctured pneumatic tire is injected into the pneumatic tire and the inside of the pneumatic tire. The present invention relates to a sealing / pump-up device for increasing the internal pressure of a pneumatic tire by feeding compressed air into the tire.

In recent years, when a pneumatic tire (hereinafter simply referred to as “tire”) is punctured, the tire is repaired with a sealing agent and the internal pressure is pumped up to a specified pressure without replacing the tire and the wheel. Pump-up devices are widespread. An example of this type of sealing / pump-up device is described in Patent Document 1.
Japanese Patent Laid-Open No. 2001-212883

  By the way, the sealing / pump-up device is usually provided with a compressor that generates compressed air, and this compressor is provided in a casing that forms the outline of the sealing / pump-up device. Moreover, since the compressor is normally comprised by several members, it is necessary to assemble a compressor before providing in a housing | casing. For this reason, the assembly process of the sealing / pump-up device requires an assembly process of the compressor and an assembly process of the entire apparatus for assembling components (including the casing and the compressor) required for the apparatus, The assembly process was complicated.

  The present invention has been made in consideration of the above-described facts, and an object thereof is to provide a pump-up device and a sealing / pump-up device that can eliminate the complexity of the assembly process of the device as compared with the prior art.

  In order to achieve the above object, a pump-up device according to claim 1 of the present invention is a pump-up device capable of increasing the internal pressure of a pneumatic tire by feeding compressed air into the pneumatic tire and forming an outer shell of the device. And a compressor that is provided in the casing, is configured by a plurality of members and is capable of generating the compressed air, and at least one member of the plurality of members is formed integrally with the casing. It is characterized by providing.

According to the pump-up device of the present invention described in claim 1, after connecting the compressor in the housing and the pneumatic tire, the compressed air generated by the compressor is fed into the pneumatic tire, thereby The internal pressure of the tire can be increased.
Here, since at least one member of the plurality of members constituting the compressor is formed integrally with the casing, the compressor is provided in the casing by assembling the compressor. That is, since the compressor assembly process forms part of the assembly process of the entire apparatus (the process of providing the compressor in the housing), the complexity of the assembly process of the pump-up device is eliminated as compared with the prior art.

  Further, by assembling the compressor with reference to one member of the compressor formed integrally with the housing, the compressor can be assembled with a simple operation and the compressor can be assembled with high accuracy.

  The pump-up device according to a second aspect of the present invention is the pump-up device according to the first aspect, wherein the compressor includes a cylindrical cylinder body, a head portion provided at one end of the cylinder body, A cylinder configured to include a discharge port that discharges the compressed air formed in the head portion, a piston that is provided in the cylinder body and is capable of reciprocating in the cylinder body, and is connected to the piston; A crank mechanism that reciprocally moves the piston; a driving unit that is coupled to the crank mechanism and that rotates the crank mechanism; and is formed integrally with the housing and accommodates the crank mechanism therein; A crankcase to which the other end portion is attached and the driving means is attached.

According to the pump-up device of the present invention as set forth in claim 2, since the crankcase is formed integrally with the casing, the assembling work of the compressor is first performed in the crankcase in which the crank mechanism is accommodated. The cylinder with the piston provided therein is attached to the crankcase to connect the crank mechanism and the piston, and the driving means is attached to the crankcase to connect the driving means and the crank mechanism. Here, since the compressor is assembled on the basis of the crankcase formed integrally with the housing, the compressor can be assembled with a simple operation and the compressor can be assembled with high accuracy.
In addition, since the crankcase is provided with the other end of the cylinder body and the part to which the drive means is attached, when the crankcase is used as a reference for compressor assembly work, the other member constituting the compressor is used as a reference. The assembly accuracy of the cylinder body and the drive means is higher than that of the cylinder body.

  A pump-up device according to a third aspect of the present invention is the pump-up device according to the first aspect, wherein the compressor is provided at a cylindrical cylinder main body and one end of the cylinder main body and integrated with the housing. Provided in the cylinder main body and reciprocatingly movable in the cylinder main body. The cylinder is configured to include the head portion formed in the head and the discharge port for discharging the compressed air formed in the head portion. And a crank mechanism connected to the piston for reciprocating the piston, and driving means connected to the crank mechanism for rotating the crank mechanism.

According to the pump-up device of the present invention as set forth in claim 3, since the head portion of the cylinder is formed integrally with the casing, the assembly work of the compressor is first performed with reference to the head portion. One end of the cylinder body is provided (attached) to form a cylinder, and a piston is disposed in the cylinder body. Next, the crank mechanism and the piston are connected, and the driving means and the crank mechanism are connected. Done. Here, since the compressor is assembled on the basis of the head portion formed integrally with the housing, the compressor can be assembled by a simple operation and the compressor can be assembled with high accuracy.
In addition, since the discharge port is formed in the head part of the cylinder, when the head part is used as a reference for the compressor assembly work, the discharge port is arranged as compared with the case where other members constituting the compressor are used as a reference. Increases accuracy.

  A pump-up device according to a fourth aspect of the present invention is the pump-up device according to the first aspect, wherein the compressor includes a cylindrical cylinder body formed integrally with the housing, and one end of the cylinder body. A cylinder configured to include a head portion provided in the head portion and a discharge port for discharging the compressed air formed in the head portion, and provided in the cylinder body, and reciprocally movable in the cylinder body. And a crank mechanism connected to the piston for reciprocating the piston, and driving means connected to the crank mechanism for rotating the crank mechanism.

According to the pump-up device of the present invention described in claim 4, since the cylinder main body is formed integrally with the housing, the assembly work of the compressor is first performed with reference to the cylinder main body. A head is provided (attached) at one end to form a cylinder, and a piston is disposed in the cylinder body. Next, the crank mechanism and the piston are connected, and the driving means and the crank mechanism are connected. Is called. Here, since the compressor is assembled on the basis of the cylinder body formed integrally with the casing, the compressor can be assembled with a simple operation and the compressor can be assembled with high accuracy.
In addition, since the cylinder body has a cylindrical shape, for example, when the casing and the cylinder body are molded by a mold, the design of the mold is more than the case where the other members constituting the compressor are formed integrally with the casing. Since it is not complicated, the mold design is simplified.

  The pump-up device according to a fifth aspect of the present invention is the pump-up device according to any one of the second to fourth aspects, wherein the driving means is formed integrally with the casing. It is characterized by being attached to the attachment portion.

According to the pump-up device of the present invention as set forth in claim 5, since the driving means is attached to the driving means attaching portion formed integrally with the casing, the driving means is attached to the casing with a simple operation. In addition, the driving means can be attached with high accuracy.
Further, since the drive means mounting portion and the housing are integrally formed, the number of parts is reduced as compared with the case where they are separated.

  A pump-up device according to a sixth aspect of the present invention is the pump-up device according to any one of the second to fifth aspects, wherein the cylinder body and the head portion are integrally formed. It is characterized by.

  According to the pump-up device of the present invention described in claim 6, since the cylinder body and the head portion are integrally formed, the number of members constituting the compressor is reduced. Therefore, the compressor assembly process is reduced and the cost of the pump-up device is reduced.

  The pump-up device according to a seventh aspect of the present invention is the pump-up device according to any one of the second to sixth aspects, wherein the compressor supplies the compressed air to the outside of the compressor. An air supply port, an air supply path connecting the air supply port and the discharge port, and provided in the air supply path, allowing exhaust of the compressed air from the discharge port to the air supply port, And non-return means for preventing fluid from entering the discharge port from the air supply port.

Usually, a cylinder is provided with a suction port for sucking air and a discharge port for discharging compressed air, and a suction valve and a discharge valve are provided in the suction port and the discharge port, respectively. Here, for example, when the discharge port of such a cylinder is connected to a container for storing the liquid, the normal discharge valve is intended to prevent gas from entering, so that the liquid in the container enters the cylinder. In order to prevent this, it is necessary to provide a separate check valve between the container and the discharge valve.
According to the pump-up device of the present invention as set forth in claim 7, the check means allows the discharge of the compressed air from the discharge port to the air supply port, and the fluid from the air supply port to the discharge port. Block entry. In other words, since the check means has the functions of a conventional discharge valve and check valve, the configuration of the apparatus is simpler and the number of parts is reduced than when a discharge valve and a check valve are separately provided as in the prior art. Therefore, the cost of the pump-up device is reduced.

  A pump-up device according to an eighth aspect of the present invention is the pump-up device according to any one of the first to seventh aspects, wherein the casing is made of a synthetic resin.

  According to the pump-up device of the present invention described in claim 8, since the housing is formed of synthetic resin, for example, if the housing is formed by injection molding, the manufacturing efficiency of the pump-up device is improved.

  A sealing / pump-up device according to a ninth aspect of the present invention is a liquid agent container that contains a sealing agent for the compressed air generated by the compressor of the pump-up device according to any one of the first to eighth aspects. The sealing agent is injected into the pneumatic tire by being fed into the pneumatic tire via the.

  In order to repair a punctured pneumatic tire, first, the compressor of the pump-up device according to any one of claims 1 to 8 and the liquid container are connected, and then generated by the compressor. Compressed air is fed into the liquid container. And the sealing agent in a liquid agent container is extruded from a liquid agent container with compressed air, and is inject | poured into a pneumatic tire.

  After the sealing agent is exhausted from the liquid container, compressed air is sent into the pneumatic tire. When the pneumatic tire reaches the specified internal pressure, stop the compressor and disconnect the pneumatic tire from the liquid container. Thereafter, the pneumatic tire is mounted on the vehicle and the vehicle runs as prescribed. Thereby, the sealing agent is filled in the puncture holes. Check air pressure after the specified run and refill with air if necessary. In this way, repair of the punctured pneumatic tire is completed.

  Here, according to the sealing / pump-up device of the present invention described in claim 9, the compressor for feeding compressed air into the liquid container is the compressor of the pump-up device according to any one of claims 1 to 8. This eliminates the complexity of the assembly process of the sealing / pump-up device.

  A sealing / pump-up device according to a tenth aspect of the present invention is the sealing / pump-up device according to the tenth aspect, wherein the liquid container is the pump-up device according to any one of the first to eighth aspects. It is characterized in that it is provided in the housing.

  According to the sealing / pump-up device of the present invention described in claim 10, since the liquid agent container is provided in the casing of the pump-up device according to any one of claims 1 to 8, The pump-up device is integrated, making it easy to carry the ceiling / pump-up device and improving the storage capacity in the storage location.

  As described above, the pump-up device of the present invention eliminates the complexity of the device assembly process as compared with the conventional device. Further, the sealing / pump-up device of the present invention eliminates the complexity of the device assembly process as compared with the conventional device.

[First Embodiment]
The sealing / pump-up device according to the first embodiment of the present invention will be described below. The sealing / pump-up device 10 repairs a tire with a sealing agent without replacing the tire and the wheel when a pneumatic tire (hereinafter simply referred to as “tire”) mounted on a vehicle such as an automobile punctures. Then, the internal pressure is re-pressurized (pumped up) to a predetermined specified pressure.

  As shown in FIGS. 1 and 2, the sealing / pump-up device 10 includes a synthetic resin casing 11 that forms an outer shell. A compressor 200 that generates compressed air M is provided inside the casing 11 (see FIG. 3). The compressor 200 is configured by assembling a plurality of constituent members, which will be described later. FIG. 3 shows details of the compressor 200, and FIGS. 4A and 4B show the compressor 200 with a one-dot chain line. .

  As shown in FIG. 4, the compressor 200 has an air supply port 202 for supplying the generated compressed air M to the outside. One end of an air hose 50 is connected to the air supply port 202. Yes. A valve adapter 22 that can be connected to the tire valve 102 is provided at the other end of the air hose 50, and the air supply port is connected via the air hose 50 by connecting the valve adapter 22 and the tire valve 102. The compressed air M supplied from 202 can be fed into the pneumatic tire 100. The other end of the air hose 50 extends outside the casing 11 and is housed in a groove 23 formed on the front side wall outer surface 11F which is the outer surface of the front side wall of the casing 11 (see FIG. 1).

  As shown in FIG. 1, one end of the front wall outer surface 11 </ b> F of the casing 11 is connected to a power supply circuit (not shown) for supplying power to the compressor 200, and the other end extends to the outside of the casing 11. A power cable 14 is accommodated. The other end of the power cable 14 is provided with a plug 15 that can be inserted into a socket (not shown) of a cigarette lighter installed in the vehicle. By inserting the plug 15 into the socket, a compressor is connected from the vehicle battery. 200 can be supplied with electric power.

  The compressor 200 includes a power switch 13 and a pressure gauge 16, and the power switch 13 and the pressure gauge 16 are disposed near the center of the upper surface 11 </ b> U of the casing 11. The compressor 200 is capable of generating compressed air having a pressure (for example, 300 kPa or more) higher than the designated tire pressure specified for each type of tire 100 to be repaired.

  As shown in FIGS. 4A and 4B, in the casing 11, there are a liquid agent container 18 containing a sealing agent 32 for repairing a puncture hole, and a lower part of the liquid agent container 18. A fixed injection unit 20 and a fixed hose 24 having one end connected to the injection unit 20 are provided. The injection unit 20 is formed with a pressurized liquid supply chamber (not shown) that can communicate with the inside of the liquid container 18, and the fixed hose 24 communicates with the pressurized liquid supply chamber through one end. Yes. The other end of the fixed hose 24 is connected to a connection port 21 arranged on the upper surface 11U of the casing 11, and the connection port 21 can be connected to the valve adapter 22 from the upper surface 11U side.

  Further, the liquid agent container 18 is fixed to the injection unit 20 in a state where the mouth (not shown) for discharging the sealing agent 32 accommodated in the liquid agent container 18 is directed downward. The mouth is sealed with an aluminum seal (not shown), and an inner plug (not shown) capable of breaking the aluminum seal is disposed in the vicinity of the aluminum seal. The inner plug is configured to be pushed up and break through the aluminum seal by inserting a pressing jig 82 into a jig insertion hole (not shown) formed in the lower part of the injection unit 20.

  In addition, one end of a joint hose 78 is connected to the injection unit 20, and the joint hose 78 communicates with the pressurized liquid supply chamber via this one end. A valve adapter 80 that can be connected to the tire valve 102 is provided at the other end of the joint hose 78. Further, the other end side of the joint hose 78 extends to the outside of the casing 11 and is accommodated in a groove 25 formed in the rear side wall outer surface 11R which is an outer surface of the rear side wall (see FIG. 2).

  As shown in FIG. 1, the casing 11 is provided with a peep window 19 for peeping inside from the front side wall outer surface 11 </ b> F side of the casing 11. The liquid agent container 18 is disposed in the back of the observation window 19, and the height of the liquid surface 32 </ b> A of the sealing agent 32 (see FIGS. 4A and 4B) can be visually observed through the observation window 19.

  Further, an operation manual 17 describing the operation procedure of the sealing / pump-up device 10 is attached to the upper surface 11U of the casing 11, and a pressing jig 82 for pushing up the inner plug is detachably attached.

(compressor)
Next, the details of the compressor 200 of the present invention will be described with reference to FIG.
As shown in FIG. 3, a reciprocating compressor 200 is used in the present embodiment. The compressor 200 includes a cylinder 214 formed by fitting one end portion of a cylindrical cylinder body 212 into a bottomed cylindrical head portion 210. The other end portion of the cylinder body 212 (or the other end portion of the cylinder 214) is fitted into an insertion port 222 formed in the box-shaped crankcase 220. The crankcase 220 is erected on the rear side wall inner surface 11RI, which is the inner surface of the rear side wall of the casing 11, and accommodates the crankshaft 224 therein. The crankcase 220 is made of the same synthetic resin as the casing 11, and is formed integrally with the casing 11 (in the narrow sense, the rear side wall of the casing 11). In addition, the integral formation here refers to what formed the member which consists of the same synthetic resin integrally using injection molding etc., for example. FIG. 3 is a front view of the rear side wall inner surface 11RI as viewed from the front.

  A piston 240 is provided inside the cylinder body 212 so as to be reciprocally movable in the axial direction of the cylinder body 212 (arrow X direction). The piston 240 has a substantially cylindrical shape and is coaxial with the cylinder body 212. One end of a piston rod 242 is rotatably connected to the side of the piston 240 opposite to the head portion 210 via a piston pin (not shown). The other end of the piston rod 242 is rotatably connected to one end 226 of the crankshaft 224. In the crankshaft 224, the central axis of the one end 226 and the central axis of the other end 230 are parallel, and the central axis of the connecting portion 228 that connects the one end 226 and the other end 230 is the other central axis. It is inclined (or orthogonal) to.

  The other end 230 of the crankshaft 224 is rotatably supported by a bearing 234 that forms a part of the crankcase 220 through the radial center of a reduction gear 232 that is grasped as a reduction gear. The reduction gear 232 is penetrated by and connected to the other end portion 230 of the crankshaft 224, and the rotation of the reduction gear 232 causes the crankshaft 224 to rotate about the central axis of the other end portion 230 ( The direction of rotation is the arrow R direction or anti-R direction). This rotation causes the piston rod 242 to reciprocate the piston 240 in the cylinder body 212 in the direction of the arrow X via the one end 226 of the crankshaft 224.

  A motor 250 is connected to the reduction gear 232. The motor 250 can be rotated by electric power supplied from a power supply circuit, and the rotation gear side of the motor 250 is attached to a first motor attachment portion 236 that constitutes a part of the crankcase 220. The motor 250 is attached to the first motor attachment portion 236 by screwing. Further, the counter-rotating gear side of the motor 250 is attached to the second motor attachment portion 238. The second motor mounting portion 238 is erected on the rear side wall inner surface 11RI, and fixes the motor 250 so as to sandwich both sides of the motor 250. The second motor attachment portion 238 is made of the same synthetic resin as the casing 11 and is formed integrally with the casing 11 (in the narrow sense, the rear side wall of the casing 11).

  Here, a cylinder chamber G is formed between the head portion 210, the cylinder body 212, and the piston 240, and the cylinder chamber G is repeatedly expanded and contracted as the piston 240 reciprocates.

  A discharge port 216 for discharging the compressed air M is formed in the head unit 210, and one end portion of a pressure-resistant pipe 218 serving as an air supply path is connected to the discharge port 216. The pressure-resistant piping 218 has the other end connected to the air supply port 202 described above, and a check valve 260 as a check means is provided between the one end and the other end. The check valve 260 allows the compressed air M to be discharged from the discharge port 216 and prevents the fluid (sealing agent 32) from entering the air supply port 202. Specifically, the check valve 260 includes a valve body 262 that can close the passage of the pressure-resistant pipe 218, and a biasing member 264 that biases the valve body 262 in a direction to close the passage (an example in this embodiment). As a spring).

  The piston 240 is formed with a through hole extending in the axial direction (arrow X direction). The through hole is used as a suction port 244 for sucking air into the cylinder chamber G. The suction port 244 is provided with a suction valve 246 that allows the suction of air into the cylinder chamber G and prevents leakage of air from the suction port 244.

Since the compressor 200 is configured as described above, when the power switch 13 is turned on while power is supplied to the power circuit of the compressor 200, the motor 250 rotates, and this rotation is properly performed by the reduction gear 232. The torque is converted into a torque and transmitted to the other end portion 230 of the crankshaft 224. The crankshaft 224 rotates in the direction of arrow R about the other end portion 230 as a rotation axis, and is connected to the one end portion 226. Then, the piston 240 in the cylinder body 212 is reciprocated in the direction of the arrow X.
Here, when the piston 240 is at the bottom dead center (the state where the piston 240 is closest to the head portion 210 side), the suction valve 246 is opened and air is sucked into the cylinder chamber G, and the check valve 260 is also opened. Is closed (the valve body 262 closes the passage of the pressure-resistant piping 218). Further, when the piston 240 is at the top dead center (the state where the piston 240 is closest to the head portion 210 side), the valve is closed by the pressure of the compressed air M compressed in the cylinder chamber G while the suction valve 246 is closed. The body 262 is moved in the anti-blocking direction, the passage of the pressure-resistant piping 218 is opened (the check valve 260 is opened), and the compressed air M passes through the discharge port 216 and the pressure-resistant piping 218 from the air supply port 202 to the air hose. To 50.

The crankcase 220 is made of the same synthetic resin as that of the casing 11 as described above, and this synthetic resin preferably has a deflection temperature under load (JIS K7207, fiber stress 4.6 kg / cm ² ) of 100 ° C. or higher. More preferably, it is 120 ° C or higher and 140 ° C or higher.

The piston 240, the cylinder body 212, and the head portion 210 are each made of a synthetic resin, and these synthetic resins preferably have a deflection temperature under load (JIS K7207, fiber stress 4.6 kg / cm ² ) of 100 ° C. or higher. More preferably, it is 120 ° C or higher and 140 ° C or higher. Further, these synthetic resins preferably have a flexural modulus (JISK6758, environmental temperature 23 ° C.) of 8000 kgf / cm ² or more, more preferably 12000 kgf / cm ² or more and 16000 kgf / cm ² or more.

  The material of the casing 11, the crankcase 220, the piston 240, the cylinder body 212, and the head part 210 is not particularly limited, but polypropylene, nylon, PPS, polyacetal, PET, PBT, or the like, or fiber reinforcement or talc reinforcement A mold or the like may be used.

  Next, an operation procedure for repairing the punctured tire 100 using the sealing / pump-up device 10 according to the present embodiment will be described.

  In the operation manual 17 described above, explanations (text and illustrations) indicating the following procedures (1) to (8) are described.

(1) When puncture occurs in the tire 100, the operator first removes the pressing jig 82 from the upper surface 11U of the casing 11, inserts the pressing jig 82 into the jig insertion hole, and pushes up the inner plug. The pushed-up inner plug breaks the aluminum seal provided at the mouth of the liquid container 18.
Thereafter, the sealing / pump-up device 10 is disposed, for example, on the road surface or the like so that the upper surface 11U faces upward (upright state; see FIGS. 1, 2, 4A, and 4B). ). Since the aluminum seal that sealed the liquid container 18 is broken, the inside of the liquid container 18 and the pressurized liquid supply chamber of the injection unit 20 communicate with each other, and the sealing agent 32 in the liquid container 18 is pressurized by its own weight. It flows out to the liquid supply chamber.

(2) Next, the air hose 50 is taken out from the groove 23, and the valve adapter 22 of the air hose 50 is connected to the connection port 21 provided on the upper surface 11U of the casing 11 (see FIG. 4A).

(3) Next, the joint hose 78 is taken out from the groove 25, and the valve adapter 80 of the joint hose 78 is connected to the tire valve 102 of the tire 100 (see FIG. 4A). The chamber is communicated into the tire 100.

(4) Insert the plug 15 into a socket such as a cigarette lighter installed in the vehicle.

(5) Start the vehicle engine.

(6) The power switch 13 is turned on to supply power to the compressor 200. The compressed air M generated by the compressor 200 is supplied into the liquid agent container 18 via the air hose 50, the fixed hose 24, and the like.

  When the compressed air M is supplied into the liquid agent container 18, the compressed air M floats above the sealing agent 32 in the liquid agent container 18 to form a space (air layer) on the sealing agent 32 in the liquid agent container 18. To do. The sealing agent 32 pressurized by the air pressure from the air layer flows out into the pressurized liquid supply chamber through the hole opened in the aluminum seal by the inner plug, and enters the air from the pressurized liquid supply chamber through the joint hose 78. It is injected into the tire 100.

  In addition, after all the sealing agent 32 in the liquid container 18 is discharged, the sealing agent 32 in the pressurized liquid supply chamber is pressurized and supplied into the pneumatic tire 100 through the joint hose 78. Thereafter, when all the sealing agent 32 is discharged from the pressurized liquid supply chamber and the joint hose 78, the compressed air M is sent into the tire 100 through the liquid agent container 18, the pressurized liquid supply chamber 40, and the joint hose 78. It is.

  Next, when it is confirmed by the pressure gauge 16 that the internal pressure of the tire 100 has reached the specified pressure, the operator turns off the power switch 13 to stop the compressor 200 and removes the valve adapter 80 from the tire valve 102. .

  The worker travels preliminarily for a certain distance (for example, 10 km) using the tire 100 into which the sealing agent 32 is injected within a certain time after the completion of the inflation of the tire 100. As a result, the sealing agent 32 is uniformly diffused inside the tire 100, and the sealing agent 32 is filled in the puncture hole, thereby closing the puncture hole.

(8) After completion of the preliminary traveling, the operator connects the valve adapter 22 of the air hose 50 to the tire valve 102 of the tire 100 as shown in FIG. 4B, and re-measures the internal pressure of the tire 100 with the pressure gauge 16. When the specified pressure is not reached, the compressor 200 is restarted to pressurize the tire 100 to the specified internal pressure. Thereby, the puncture repair of the tire 100 is completed, and the tire 100 can be used to travel at a certain speed or less (for example, 80 km / h or less) within a certain distance range.

Next, the operation of the first embodiment will be described.
Since the crankcase 220 is formed integrally with the casing 11, the assembly operation of the compressor 200 is performed with reference to the crankcase 220. The crankcase 220 includes a fitting inlet 222 for supporting the cylinder 214, a bearing 234 for supporting the crankshaft 224, and a first motor mounting portion 236 for supporting the motor 250. Positioning when assembling the constituent members is facilitated. Therefore, the compressor 200 can be assembled with a simple operation, and the compressor 200 can be assembled with high accuracy.
Furthermore, the compressor 200 is provided (assembled) in the casing 11 by assembling the compressor 200. That is, since the assembly process of the compressor 200 forms a part of the assembly process of the entire apparatus (the process of assembling the compressor 200 to the casing 11), the complexity of the assembly process of the apparatus is eliminated as compared with the conventional apparatus.

  Further, since the motor 250 is attached to the first motor attachment portion 236, the motor 250 can be attached to the casing 11 with a simple operation, and the motor 250 can be attached with high accuracy.

  Furthermore, since the check valve 260 is provided in the pressure-resistant piping 218, it is not necessary to provide a check valve in the vicinity of the discharge valve and the air supply port 202 in the cylinder, so that the configuration of the sealing / pump-up device 10 is simplified. In addition, since the number of parts is reduced, the cost of the sealing / pump-up device 10 is reduced.

  Furthermore, since the liquid container 18, the injection unit 20 and the compressor 200 are provided in the casing 11, that is, the sealing / pump-up device 10 is integrated, the sealing / pump-up device 10 can be carried. Convenient and easy to store.

  Since the casing 11 and the crankcase 220 are made of the same synthetic resin, the manufacturing efficiency of the casing 11 can be improved if they are integrally formed using injection molding or the like.

In addition, during operation of the compressor 200, the temperature of each component (crankcase 220, piston 240, cylinder body 212, and head portion 210) of the compressor 200 may exceed 100 ° C. By using a synthetic resin having a temperature (JISK7207, fiber stress 4.6 kg / cm ² ) of 100 ° C. or higher, deformation due to temperature can be suppressed. In addition, when the synthetic resin has a deflection temperature under load of 120 ° C. or higher or 140 ° C. or higher, deformation of each component due to temperature can be further suppressed.

Furthermore, since the piston 240, the cylinder main body 212, and the head portion 210 are subjected to a large load when the compressor 200 is operated, these members have a bending elastic modulus (JISK6758, ambient temperature 23 ° C.) of 8000 kgf / cm ² or more. By using a resin, deformation due to a load can be suppressed. Further, if the synthetic resin has a flexural modulus of 12000 kgf / cm ² or more or 16000 kgf / cm ² or more, deformation due to load can be further suppressed.

  In the present embodiment, the head portion 210 and the cylinder main body 212 are configured as separate members. However, the present invention is not limited to this configuration, and the head portion 210 and the cylinder main body 212 are integrally formed. It is good also as a structure. By integrally forming the head part 210 and the cylinder main body 212, the number of members constituting the compressor 200 is reduced. Therefore, the assembly process of the compressor 200 is reduced, and the cost of the sealing / pump-up device 10 is reduced.

[Second Embodiment]
Next, a second embodiment of the sealing / pump-up device of the present invention will be described with reference to FIG. The sealing / pump-up device 300 according to the second embodiment has substantially the same configuration as that of the first embodiment, except that the configuration of the compressor is different from that of the first embodiment. In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 5, the compressor 310 includes a cylindrical cylinder 312 erected on the rear side wall inner surface 11RI. The cylinder 312 is made of the same synthetic resin as that of the casing 11 and is formed integrally with the casing 11 (in the narrow sense, the rear side wall of the casing 11), and the head portion 316 on the rear side wall inner surface 11RI side and the opposite thereof. And a cylinder body 314 on the side. FIG. 5 is a partial cross-sectional side view of the rear side wall inner surface 11RI as viewed from the side surface.

  Inside the cylinder 312, a piston 340 is disposed so as to be capable of reciprocating in the axial direction (arrow X direction) of the cylinder 312. The piston 340 has a substantially cylindrical shape and is coaxial with the cylinder 312. One end of a piston rod 342 is rotatably connected to the side opposite to the head 316 of the piston 340 via a piston pin (not shown). The other end of the piston rod 342 is rotatably connected to one end 326 of the shaft 324.

  The other end portion 330 of the shaft 324 penetrates the radially outer side from the radial center of the reduction gear 332 grasped as a reduction gear and is connected to the reduction gear 332. The radial center of the reduction gear 332 is connected to one end portion of the gear support shaft 334, and the other end portion of the gear support shaft 334 is a bearing of the first motor mounting portion 336 standing on the rear side wall inner surface 11RI. 338 is rotatably supported. The first motor attachment portion 336 is made of the same synthetic resin as the casing 11 and is formed integrally with the casing 11 (in the narrow sense, the rear side wall of the casing 11).

  Since the shaft 324 reciprocates in the arrow X direction by rotating the reduction gear 332, the piston 340 connected via the piston rod 342 also reciprocates in the cylinder 312 in the arrow X direction.

  In addition, a motor 350 is connected to the reduction gear 332. The motor 350 can be rotated by electric power supplied from the power supply circuit, and the rotation gear side of the motor 350 is attached to the first motor attachment portion 336. The motor 350 is attached to the first motor attachment portion 336 by screwing screws. The counter-rotating gear side of the motor 350 is attached to the second motor attachment portion 339. The second motor mounting portion 339 is erected on the rear side wall inner surface 11RI, and fixes the counter-rotating gear side of the motor 350 so as to sandwich both side portions of the motor 350. The second motor attachment portion 339 is made of the same synthetic resin as the casing 11 and is formed integrally with the casing 11 (in the narrow sense, the rear side wall of the casing 11).

  Here, a cylinder chamber G is formed between the head portion 316, the cylinder body 314, and the piston 340, and the cylinder chamber G repeats expansion and contraction as the piston 340 reciprocates.

  A discharge port 318 for discharging compressed air M is formed in the head portion 316, and one end of a pressure-resistant pipe 320 serving as an air supply path is connected to the discharge port 318. The pressure-resistant piping 320 has the other end connected to the air supply port 202 described above, and a check valve 360 as a check means is provided between the one end and the other end. The check valve 360 allows exhaust of the compressed air M from the discharge port 318 and can prevent the fluid (sealing agent 32) from entering the air supply port 202. Specifically, the check valve 360 includes a valve body 362 that can close the passage of the pressure-resistant piping 320, and a biasing member 364 that biases the valve body 362 in a direction to close the passage (an example in the present embodiment). As a spring).

The piston 340 has a through hole extending in the axial direction (arrow X direction). The through hole is used as a suction port 344 for sucking air into the cylinder chamber G. The suction port 344 is provided with a suction valve 346 that allows air to be sucked into the cylinder chamber G and prevents air leakage from the suction port 344.
Note that the piston 340 and the cylinder 312 of the second embodiment are formed of the same synthetic resin as the piston 240 and the cylinder 214 of the first embodiment, respectively.

  Since the compressor 310 is configured as described above, the motor 350 is rotated by turning on the power switch 13 while power is supplied to the power circuit of the compressor 310, and this rotation is reduced by the reduction gear 332. The piston 340 converted to an appropriate torque and connected to the piston rod 242 via the shaft 324 is reciprocated in the direction of the arrow X in the cylinder body 314.

  Here, when the piston 340 is at the bottom dead center (a state where the piston 340 is closest to the head portion 316), the suction valve 346 is opened and air is sucked into the cylinder chamber G, and the check valve 360 is opened. Is closed (the valve body 362 closes the passage of the pressure-resistant piping 320). Further, when the piston 340 is at the top dead center (a state where the piston 340 is closest to the head portion 316), the valve is closed by the pressure of the compressed air M compressed in the cylinder chamber G while the suction valve 346 is closed. The body 362 is moved in the anti-blocking direction, the passage of the pressure-resistant piping 320 is opened (the check valve 360 is opened), and the compressed air M passes through the discharge port 318 and the pressure-resistant piping 320 from the air supply port 202 to the air hose. To 50.

Next, the operation of the second embodiment will be described.
Since the cylinder 312 is formed integrally with the casing 11, the assembly operation of the compressor 310 is performed with reference to the cylinder 312. For this reason, positioning when assembling the respective constituent members constituting the compressor 310 is facilitated, the compressor 310 can be assembled by a simple operation, and the compressor 310 can be assembled with high accuracy. Furthermore, by assembling the compressor 310, the compressor 310 is provided (assembled) in the casing 11. That is, since the assembly process of the compressor 310 forms a part of the assembly process of the entire apparatus (the process of assembling the compressor 310 to the casing 11), the complexity of the assembly process of the sealing / pump-up device 300 is eliminated as compared with the prior art.

Further, since the cylinder body 314 and the head portion 316 are integrally formed, the number of members constituting the compressor is reduced. Therefore, the assembly process of the compressor 310 is reduced, and the cost of the sealing / pump-up device 300 is reduced.
Furthermore, since the compressor 310 of the second embodiment has a structure that does not require a crankcase as compared with the compressor 200 of the first embodiment, the number of parts of the compressor is reduced.
Furthermore, since the cylinder 312 and the casing 11 are integrally formed, the arrangement accuracy of the discharge ports 318 is increased.
The other actions are the same as those obtained in the first embodiment.

  Here, in the second embodiment, the cylinder body 314 and the head portion 316 are integrally formed. However, the present invention is not limited to this configuration, and the cylinder body 314 and the head portion 316 are separately provided. In the case where the cylinder body 314 and the casing 11 are integrally formed, and the case where the head portion 316 and the casing 11 are integrally formed, Divided. When the cylinder body 314 and the casing 11 are formed integrally, the head portion 316 and the casing 11 are formed integrally, so that the arrangement accuracy of the discharge port 318 is increased, and the cylinder body 314 is formed. When the casing 11 and the casing 11 are integrally formed, the shape of the cylinder body 314 is cylindrical. For example, when the casing 11 and the cylinder body 314 are molded by a mold, the mold design is not complicated. Therefore, the design of the mold becomes simple.

[Other embodiments]
In the first and second embodiments, the compressor is a reciprocating type, but the present invention is not limited to this configuration, and the compressor may be of another type (for example, a screw type).

  In the first and second embodiments, the sealing / pump-up device is an integrated sealing / pump-up device in which the liquid agent container 18 to which the compressor and the injection unit 20 are fixed is provided in the casing 11. The invention is not limited to this configuration. As shown in FIG. 6, the liquid agent container 18 to which the compressor and the injection unit 20 are fixed is accommodated in separate casings (the injection unit 20 and the liquid agent container 18 are accommodated in the casing as shown in FIG. It is also possible to use a sealing / pump-up device.

  Further, in the first embodiment, each component of the compressor 200 is erected on the rear side wall inner surface 11RI, and in the second embodiment, each component of the compressor 310 is erected on the rear side wall inner surface 11RI. However, the present invention is not limited to this configuration, and each component may be erected on any inner wall surface as long as it is the inner wall surface of the casing 11.

  Needless to say, the present invention is not limited to the above-described embodiments, and can be implemented with various modifications within the scope of the claims.

It is the perspective view which looked at the sealing and pump-up device concerning a 1st embodiment from the front side. It is the perspective view which looked at the sealing and pump-up device concerning a 1st embodiment from the back side. It is the fragmentary sectional front view which looked at the compressor provided in the back side inner wall surface of the sealing and pumping-up apparatus which concerns on 1st Embodiment from the front. (A) is a block diagram of the principal part which shows the state which connected the joint hose to the tire valve of the pneumatic tire, (B) is the structure of the principal part which shows the state which connected the air hose to the tire valve of the pneumatic tire FIG. It is the partial cross section side view which looked at the compressor provided in the back side inner wall surface of the sealing pump-up apparatus which concerns on 2nd Embodiment from the side surface. It is a schematic explanatory drawing of the sealing pump-up apparatus which concerns on other embodiment.

Explanation of symbols

10 Sealing / pump-up device 11 Casing 18 Liquid container 100 Tire (Pneumatic tire)
200 Compressor 202 Air supply port 210 Head unit 212 Cylinder body 214 Cylinder 216 Discharge port 218 Pressure-resistant piping (air supply channel)
220 Crankcase 224 Crankshaft (Crank mechanism)
232 Reduction gear (drive means)
236 First motor mounting portion 238 Second motor mounting portion (drive means mounting portion)
240 piston 250 motor (drive means)
260 Check valve (check means)
300 Sealing / pump-up device 310 Compressor 312 Cylinder 314 Cylinder body 316 Head unit 318 Discharge port 320 Pressure-resistant piping (air supply path)
324 Shaft (Crank mechanism)
332 Reduction gear (drive means)
336 1st motor attachment part (drive means attachment part)
339 Second motor mounting part (driving means mounting part)
340 Piston 350 Motor (drive means)
360 Check valve (check means)
M Compressed air

Claims (10)

In a pump-up device capable of increasing the internal pressure of the pneumatic tire by sending compressed air into the pneumatic tire,
A housing that forms the outer shell of the device;
A compressor that is provided in the housing, is configured of a plurality of members and is capable of generating the compressed air, and at least one member of the plurality of members is formed integrally with the housing;
A pump-up device comprising: The compressor is
A cylinder including a cylindrical cylinder body, a head part provided at one end of the cylinder body, and a discharge port for discharging the compressed air formed in the head part;
A piston provided in the cylinder body and capable of reciprocating in the cylinder body;
A crank mechanism coupled to the piston for reciprocating the piston;
Driving means connected to the crank mechanism and rotating the crank mechanism;
A crankcase formed integrally with the housing and containing the crank mechanism therein, the other end of the cylinder body being attached and the drive means being attached;
The pump-up device according to claim 1, further comprising: The compressor is
A cylindrical cylinder body, a head part provided at one end of the cylinder body and integrally formed with the housing, and a discharge port for discharging the compressed air formed in the head part. A configured cylinder;
A piston provided in the cylinder body and capable of reciprocating in the cylinder body;
A crank mechanism coupled to the piston for reciprocating the piston;
Driving means connected to the crank mechanism and rotating the crank mechanism;
The pump-up device according to claim 1, further comprising: The compressor is
A cylindrical cylinder body formed integrally with the housing; a head section provided at one end of the cylinder body; and a discharge port for discharging the compressed air formed in the head section. A configured cylinder;
A piston provided in the cylinder body and capable of reciprocating in the cylinder body;
A crank mechanism coupled to the piston for reciprocating the piston;
Driving means connected to the crank mechanism and rotating the crank mechanism;
The pump-up device according to claim 1, further comprising:   The pump-up device according to any one of claims 2 to 4, wherein the driving means is attached to a driving means attaching portion formed integrally with the casing.   The pump-up device according to any one of claims 2 to 5, wherein the cylinder body and the head portion are integrally formed. The compressor is
An air supply port for supplying the compressed air to the outside of the compressor;
An air supply path connecting the air supply port and the discharge port;
A non-return means provided in the air supply path, allowing exhaust of the compressed air from the discharge port to the air supply port, and preventing entry of fluid from the air supply port to the discharge port;
The pump-up device according to any one of claims 2 to 6, further comprising:   The pump-up device according to claim 1, wherein the casing is made of a synthetic resin.   The compressed agent generated by the compressor of the pump-up device according to any one of claims 1 to 8 is fed into a pneumatic tire through a liquid agent container containing the sealant, whereby the sealant is A sealing / pump-up device, which is injected into the pneumatic tire.   The sealing / pump-up device according to claim 9, wherein the liquid agent container is provided in a housing of the pump-up device according to any one of claims 1 to 8.

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