JP5957500B2 - Tire puncture repair kit - Google Patents

Description

  The present invention relates to a tire puncture repair kit for repairing a puncture emergency by sequentially injecting a puncture repair liquid and compressed air into a punctured tire.

  As a puncture repair kit for repairing puncture emergencyly, a kit using a compressor device and a bottle unit in which an extraction cap is attached to the mouth of a bottle container containing puncture repair liquid has been proposed (for example, Patent Document 1). reference.). In this type of puncture repair kit, puncture repair liquid is injected from a bottle unit into a tire by compressed air from a compressor device. Thereafter, the pressure of the tire is increased while visually observing the pressure gauge using the compressed air continuously supplied, and the pressure increase is terminated when the necessary tire pressure is reached.

  Further, as shown in FIG. 13, as a compressor apparatus a for a puncture repair kit, a compressor main body c that generates compressed air is generated in a storage case b that can be separated into an upper case part b1 and a lower case part b2. An apparatus is known in which an air supply unit d for sending compressed air to a tire, a pressure gauge e for measuring the pressure of the generated compressed air, and a relief valve f for releasing the overpressure of the compressed air are attached (for example, patents). Reference 2).

  In this apparatus a, a pressure gauge e is attached to the upper case part b1, and a compressor body c is attached to the lower case part b2, and a connecting hose g is connected between the pressure gauge e and a cylinder of the compressor body c. Connected.

  However, in such a structure, at the time of assembling work, a connecting work for connecting the connecting hose g to the pressure gauge e and the cylinder is required, and when the upper case part b1 and the lower case part b2 are closed, the electrical wiring h and At the same time, it is inferior in assembling workability, for example, an operation for bringing the connecting hose g into a state of not biting is required. Further, as the pressure gauge e, a Bourdon tube type, a bellows type, etc. are widely adopted, but these are all complicated in structure and high in cost, and work based on the cost of the connecting hose g and a decrease in assembly workability. Combined with the increase in cost, it is a major obstacle to reducing the cost of puncture repair kits.

JP 2009-023123 A JP 2005-344570 A

  Accordingly, an object of the present invention is to provide a tire puncture repair kit that can improve the assembly workability of the compressor device and can reduce the cost.

The present invention is a puncture repair kit comprising a compressor device and a bottle unit in which an extraction cap is attached to the mouth of a bottle container containing puncture repair liquid,
The extraction cap comprises an intake port for sending compressed air from the compressor device into the bottle container, and an extraction port for sequentially taking out the puncture repair liquid and compressed air from the bottle container by feeding this compressed air,
The compressor device has a main cylinder part that forms a pump chamber that compresses air, and a cylinder that has a sub cylinder part that forms a surge chamber that is connected to the main cylinder part and receives compressed air from the pump chamber.
And a pressure gauge for measuring the pressure of the compressed air in the surge chamber,
The pressure gauge has a cylindrical body part whose front end part leads to the surge chamber and whose rear end part is closed, and a piston which can move in the cylindrical body part in the length direction by compressed air from the surge chamber. And a spring that urges the piston toward the front end and whose displacement changes depending on the pressure of the compressed air, and a display unit that is disposed on the peripheral wall of the cylindrical body and displays the amount of movement of the piston. With
The pressure gauge and the sub-cylinder portion are connected with one touch through a connecting means.

  In the tire puncture repair kit according to the present invention, the connecting means includes a connection nozzle provided on one of the cylindrical body part or the sub cylinder part and projecting toward the other, and the connection nozzle provided on the other is concentric and It is preferable to provide an airtightly inserted nozzle receiver and a retaining means for preventing the connection nozzle from being removed from the inserted state.

  In the tire puncture repair kit according to the present invention, the retaining means rotates the pressure gauge to a predetermined angular position around the axis j of the connection nozzle after the connection nozzle is inserted into the nozzle receiver. It is preferable to prevent slipping.

In the tire puncture repair kit according to the present invention, the retaining means includes:
A rectangular plate-like first plate portion extending radially outward from the connection nozzle;
A rectangular plate-like second plate portion extending in a diametrical direction from the nozzle receiver, and in the inserted state, the first plate portion and the front surface face each other;
And including a hook portion provided on one of the first and second plate portions,
The hook portion has an L shape having a standing piece portion that rises forward from both ends in the diameter direction of one plate portion, and a locking piece portion that is bent inward in the diameter direction from the front end of each standing piece portion, and the pressure When the meter rotates to a predetermined angular position, it is preferable to prevent the other plate portion from being sandwiched between the one plate portion and the locking piece portion.

  In the tire puncture repair kit according to the present invention, it is preferable that the other plate portion has an arcuate chamfered portion at a pair of corner portions diagonally across the axis j.

  In the tire puncture repair kit according to the present invention, the retaining means may be configured such that the diametrical outer end surface of the other plate portion and the diametrical inner wall surface of the standing piece portion come into contact with each other. It is preferable to stop the rotation at the predetermined angular position.

  In the tire puncture repair kit according to the present invention, it is preferable that the retaining means includes a rotation return preventing means for preventing the pressure gauge from rotating back from the predetermined angular position.

  The pressure gauge used in the present invention includes a cylindrical body part with a front end communicating with the surge chamber, a piston capable of moving in the length direction within the cylindrical body part by compressed air from the surge chamber, and a piston attached to the front end side. It comprises a spring that energizes and a display unit that displays the amount of movement of the piston. Such a pressure gauge has a simple structure, and can reduce the cost of the pressure gauge itself as compared with a conventional one such as a Bourdon tube type or a bellows type.

  Moreover, the pressure gauge is connected to the sub-cylinder portion with one touch via a connecting means. Therefore, the connection hose is not necessary, and the assembly workability of the compressor device can be improved. In addition, the cost of the compressor device, and hence the puncture repair kit, can be reduced by reducing the work cost associated with this improved assembly workability, reducing the cost by eliminating the need for a connecting hose, and reducing the cost of the pressure gauge itself. it can.

It is a perspective view which shows an example of the use condition of the puncture repair kit of the tire of this invention. It is a top view which shows the inside of the compressor apparatus used for a puncture repair kit. It is a perspective view which shows the principal part of a compressor main body. It is sectional drawing which shows a cylinder with a piston. It is a top view which shows a pressure gauge. It is a disassembled perspective view which shows a pressure gauge. It is sectional drawing which shows a pressure gauge. It is a disassembled perspective view which shows a connection means. It is a conceptual diagram explaining operation | movement of a retaining means. It is sectional drawing which shows a retaining means. It is a conceptual diagram which shows a rotation return prevention means. It is sectional drawing which shows an extraction cap. It is a disassembled perspective view of the compressor apparatus explaining a prior art.

Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 shows an example of a use state of a tire puncture repair kit 1 according to the present invention. The puncture repair kit 1 is composed of a compressor device 2 having a compressed air discharge port 2A for discharging compressed air and a bottle unit 3, and the bottle unit 3 includes a bottle container 28 containing a puncture repair liquid, An extraction cap 29 attached to the mouth is provided.

  The extraction cap 29 has an intake port portion 37 for sending the compressed air from the compressor device 2 into the bottle container 28, and an extraction port portion for sequentially taking out the puncture repair liquid and the compressed air from the bottle container 28 by feeding this compressed air. 38. In this example, a case where the compressed air discharge port portion 2A of the compressor device 2 and the intake port portion 37 of the bottle unit 3 are directly connected without a hose is shown. In addition, the hose 39 connects between the outlet 38 of the bottle unit 3 and the tire T.

  As shown in FIG. 2, the compressor device 2 includes at least a compressor body 5 that generates compressed air and a pressure gauge 6 that measures the pressure of the compressed air in a storage case 4.

  The compressor body 5 includes a motor M, a piston 8 connected to the motor M via a crank mechanism 7, and a cylinder 9 that accommodates the piston 8 so as to be capable of reciprocating. As the motor M, various commercially available DC motors that operate with a 12V DC power source of an automobile can be employed. A power cord having a power plug that can be connected to a cigarette lighter socket of an automobile is connected to the motor M via a power switch SW (shown in FIG. 1) that is attached to the upper plate portion of the storage case 4. . As the crank mechanism 7, various known structures can be employed.

  The cylinder 9 includes a main cylinder portion 9A and a sub cylinder portion 9B. As shown in FIG. 4, the main cylinder portion 9 </ b> A accommodates the piston 8 so as to be capable of reciprocating from the bottom dead center to the top dead center, and forms a pump chamber 12 </ b> A that compresses air with the piston 8. . The sub cylinder portion 9B is connected to the main cylinder portion 9A, and forms a surge chamber 12B that receives the compressed air compressed in the pump chamber 12A through the one-way valve 13 in this example. This surge chamber 12B suppresses the pulsation of compressed air from the pump chamber 12A and stabilizes the pressure.

  The piston 8 of this example is provided with an intake valve 14 for sucking outside air into the pump chamber 12A. The intake valve 14 has an intake hole 14A extending through the piston 8 in the axial direction, and closes the intake hole 14A with a spring property from the pump chamber 12A side, for example, an elastic material such as rubber, synthetic resin, or metal. It is formed from a valve 14B such as a body.

  The one-way valve 13 includes a connection hole 13A formed in a partition wall portion 9C between the pump chamber 12A and the surge chamber 12B, and a valve body 13B made of, for example, a rubber member that closes the connection hole 13A from the surge chamber 12B side. And a spring 13C that urges the valve body 13B toward the connection hole 13A. The one-way valve 13 is activated by pressurization of the pump chamber 12A and opens the connection hole 13A.

  As shown in FIGS. 2 and 3, the cylinder portions 15 and 16 protrude from the sub cylinder portion 9 </ b> B, and the pressure gauge 6 is connected to one of the cylinder portions 15. The other cylinder portion 16 constitutes a compressed air discharge port portion 2A that discharges compressed air to the bottle unit 3 side.

  As shown in FIGS. 5 to 7, the pressure gauge 6 includes a cylindrical body 18, a piston 19, and a spring 20.

  The said cylindrical trunk | drum 18 has the hole 21 which takes in the compressed air from the surge chamber 12B in the front-end part, and the cap 22 attaches to a rear-end part. Specifically, the cylindrical body portion 18 of this example includes a cylindrical body portion 18A having a center hole 18A1 and a front wall portion 18B disposed at the front end thereof. The hole portion 21 penetrates the front wall portion 18B and conducts the surge chamber 12B and the center hole 18A1. Further, a cap 22 for closing the rear end portion is screwed to the trunk portion main body 18A.

  The piston 19 includes a piston main body 19A made of, for example, synthetic resin that is loosely inserted into the cylindrical body 18, and a seal ring 23 such as an O-ring that is attached to the outer periphery of the piston main body 19A. The seal ring 23 seals the space between the inner peripheral surface of the cylindrical body 18. The piston 19 can move in the longitudinal direction in the cylindrical body portion 18 by the compressed air from the surge chamber 12B.

  The spring 20 is disposed between the piston 19 and the cap 22 and urges the piston 19 to the front end side. The spring 20 of this example is a compression coil spring, and its displacement (in this example, the amount of compression) changes depending on the pressure of the compressed air.

  The cap 22 of this example is provided with a holding cylinder portion 22 </ b> A that is inserted into the spring 20 to hold the spring 20 concentrically. The holding cylinder portion 22A also functions as a guide portion that guides the piston 19 concentrically. Specifically, the piston 19 of the present example includes a guide shaft portion 19B concentrically extending rearward from the rear end of the piston main body 19A. The guide shaft portion 19B is slidably inserted into the central hole of the holding cylinder portion 22A, whereby the piston 19 is guided concentrically.

  A display portion 24 (shown in FIG. 5) for displaying the movement amount of the piston 19 is formed on the peripheral wall of the cylindrical body portion 18. On the display unit 24 of this example, a scale for displaying the amount of movement of the piston 19 in terms of pressure is formed by printing, marking or the like. The seal ring 23 of the piston 19 serves as a pointer for the display unit 24. Specifically, the cylindrical body portion 18 is transparent at least at a portion where the display portion 24 is formed, and the seal ring 23 is reflected through the transparent portion, so that the piston 19 moves, that is, is compressed. The pressure of air can be indicated. That is, it can function as a pressure gauge.

  The piston 19 is provided with a cylindrical blindfold 19C that covers the spring 20 and the like so that the spring 20 and the like are not reflected in the transparent portion. The blindfold 19C extends concentrically rearward from the rear end of the piston body 19A and covers the periphery of the spring 20.

  In this example, an exhaust port 25 is provided on the peripheral wall of the cylindrical body 18. When the compressed air reaches a specified pressure and the seal ring 23 exceeds the exhaust port 25, the exhaust port 25 is connected to the surge chamber 12B and exhausts the compressed air. That is, the pressure gauge 6 of this example can also function as a relief valve that releases overpressure from the exhaust port 25 and restricts the compressed air to a specified pressure or less. Therefore, in the case of this example, the conventional relief valve can be abolished, and cost reduction can be further promoted.

  As shown in FIG. 8, the pressure gauge 6 and the sub-cylinder portion 9 </ b> B are connected with one touch via a connecting means 40. The connecting means 40 includes a connection nozzle 41 provided on one of the cylindrical body portion 18 and the sub cylinder portion 9B and protruding toward the other, and a nozzle receiver 42 provided on the other side and into which the connection nozzle 41 is inserted concentrically and airtightly. , And retaining means 43 for retaining the connection nozzle 41 from the inserted state Y (shown in FIG. 10).

  In this example, the connection nozzle 41 protrudes from the sub-cylinder part 9B via the cylinder part 15, and the nozzle receiver 42 is formed on the cylindrical body part 18 side. In this case, the nozzle receiver 42 is configured by the hole 21. However, it is possible to project the connection nozzle 41 on the cylindrical body portion 18 side and form the nozzle receiver 42 on the sub cylinder portion 9B side as required. In this case, the nozzle receiver 42 is configured by an inner hole of the cylindrical portion 15.

  Further, in this example, the retaining means 43 is configured by rotating the pressure gauge 6 to a predetermined angular position Q around the axis j of the connection nozzle 41 after the connection nozzle 41 is inserted into the nozzle receiver 42. Make sure to prevent it from coming off. In this example, as the “predetermined angular position Q”, as shown in FIGS. 1 and 2, an angular position at which the display unit 24 faces upward is set. A display window portion 4H that exposes the display portion 24 is disposed on the upper surface of the storage case 4.

  Specifically, the retaining means 43 includes a rectangular plate-like first plate portion 45 extending radially outward from the connection nozzle 41 and a rectangular plate-shaped second plate extending radially from the nozzle receiver 42. A plate portion 46 and an L-shaped hook portion 47 provided on one of the first and second plate portions 45, 46 (second plate portion 46 in this example) are provided. The front surfaces of the first and second plate portions 45 and 46 face each other in the inserted state Y.

  Further, the hook portion 47 bends inward in the diametrical direction from the front end of each standing piece portion 48 and the standing piece portion 48 rising to the front side from both diametrical ends of one plate portion (second plate portion 46 in this example). And a locking piece portion 49. As shown in FIG. 9, after the connection nozzle 41 is inserted into the nozzle receiver 42, the pressure gauge 6 is rotated to the predetermined angular position Q around the axis j. At this time, as shown in FIG. 10, between the one plate portion (second plate portion 46 in this example) and the locking piece portion 49, the other plate portion (first plate portion 45 in this example). ) To prevent it from coming off.

  As shown in FIG. 9, the retaining means 43 includes a diameter direction outer end surface Es of the other plate portion (first plate portion 45 in this example) and a diameter direction inner wall surface 48 s of the standing piece portion 48. By contacting, the rotation of the pressure gauge 6 is stopped at the predetermined angular position Q. That is, the distance La from the axis j to the outer end surface Es is substantially equal to the distance Lb from the axis j to the diametrical inner wall surface 48s of the upright portion 48.

At this time, an arc-shaped chamfered portion 60 is formed on the other plate portion (in this example, the first plate portion 45) at a pair of corner portions C that are diagonal to each other with the axis j interposed therebetween. Note that the distance Lc from the axis j to the chamfered portion 60 is equal to or less than the distance Lb, which enables rotation to the angular position Q.

The retaining means 43 includes a rotation return preventing means 50 for preventing the pressure gauge 6 from rotating back from the predetermined angular position Q. In the present embodiment, as the rotation return preventing means 50, as conceptually shown in FIG. 11, an engagement recess 50A formed on one of the outer periphery 6S of the pressure gauge 6 or the inner surface 4S of the storage case 4, and the other formed on the other. And an engaging projection 50B that fits into the engaging recess 50A. As the engaging recess 50A , a dimple shape and a groove shape can be appropriately employed.

  Next, as shown in FIG. 12, the extraction cap 29 of this example includes a bottom plate portion 31 forming a bottom surface, a bottle mounting portion 32 to which the mouth portion of the bottle container 28 is attached, and a constricted portion 33 disposed therebetween. It has a cap body 29A provided integrally. In the cap body 29A, a first flow path 35 extending from the intake opening 37 into the opening of the bottle container 28, and a second flow path 36 extending from the take-out opening 38 to the opening of the bottle container 28 are provided. Is formed.

  The bottle attachment portion 32 has an attachment recess 32A for fixing the mouth portion of the bottle container 28, and a boss portion 32B protruding from the bottom surface of the attachment recess 32A. The mounting recess 32A can be screwed into the mouth of the bottle container 28 with an internal screw provided on the inner wall surface thereof. On the upper surface of the boss portion 32B, a first flow path opening 35a that forms the upper end of the first flow path 35 and a second flow path opening 36a that forms the upper end of the second flow path 36 are provided. Each is open.

  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.

DESCRIPTION OF SYMBOLS 1 Punk repair kit 2 Compressor apparatus 3 Bottle unit 6 Pressure gauge 9 Cylinder 9A Main cylinder part 9B Subcylinder part 12A Pump chamber 12B Surge chamber 18 Cylindrical trunk part 19 Piston 20 Spring 24 Display part 28 Bottle container 29 Extraction cap 37 Intake port Portion 38 outlet port 40 connecting means 41 connecting nozzle 42 nozzle receiver 43 retaining means 45 first plate portion 46 second plate portion 47 hook portion 48 standing piece portion 48s inner wall surface 49 locking piece portion 50 chamfering portion 51 rotation Return prevention means C Corner part Es Outer end face

Claims (7)

A puncture repair kit comprising a compressor device and a bottle unit having an extraction cap attached to the mouth of a bottle container containing puncture repair liquid,
The extraction cap comprises an intake port for sending compressed air from the compressor device into the bottle container, and an extraction port for sequentially taking out the puncture repair liquid and compressed air from the bottle container by feeding this compressed air,
The compressor device has a main cylinder part that forms a pump chamber that compresses air, and a cylinder that has a sub cylinder part that forms a surge chamber that is connected to the main cylinder part and receives compressed air from the pump chamber.
And a pressure gauge for measuring the pressure of the compressed air in the surge chamber,
The pressure gauge has a cylindrical body part whose front end part leads to the surge chamber and whose rear end part is closed, and a piston which can move in the cylindrical body part in the length direction by compressed air from the surge chamber. And a spring that urges the piston toward the front end and whose displacement changes depending on the pressure of the compressed air, and a display unit that is disposed on the peripheral wall of the cylindrical body and displays the amount of movement of the piston. With
The tire puncture repair kit, wherein the pressure gauge and the sub-cylinder portion are connected with one touch through a connecting means.   The connecting means includes a connection nozzle that is provided on one of the cylindrical body portion or the sub cylinder portion and protrudes toward the other, a nozzle receiver that is provided on the other side and into which the connection nozzle is inserted concentrically and airtightly, and an inserted state. The tire puncture repair kit according to claim 1, further comprising a retaining means for retaining the connecting nozzle.   The said retaining means performs retaining by rotating the pressure gauge to a predetermined angular position around an axis j of the connecting nozzle after insertion of the connecting nozzle into the nozzle receiver. The tire puncture repair kit according to 2. The retaining means includes
A rectangular plate-like first plate portion extending radially outward from the connection nozzle;
A rectangular plate-like second plate portion extending in a diametrical direction from the nozzle receiver, and in the inserted state, the first plate portion and the front surface face each other;
And including a hook portion provided on one of the first and second plate portions,
The hook portion has an L shape having a standing piece portion that rises forward from both ends in the diameter direction of one plate portion, and a locking piece portion that is bent inward in the diameter direction from the front end of each standing piece portion, and the pressure 4. The tire puncture repair according to claim 3, wherein when the meter rotates to a predetermined angular position, the other plate portion is sandwiched between the one plate portion and the locking piece portion to prevent the tire from coming off. kit. 5. The tire puncture repair kit according to claim 4, wherein the other plate portion has an arc-shaped chamfered portion at a pair of corner portions that form a diagonal with the axis j interposed therebetween.
  The retaining means stops the rotation of the pressure gauge at the predetermined angular position by abutting a diameter direction outer end surface of the other plate portion and a diameter direction inner wall surface of the standing piece portion. The tire puncture repair kit according to claim 5. The tire puncture repair kit according to claim 6, wherein the retaining means includes a rotation return prevention means for preventing the pressure gauge from rotating back from the predetermined angular position.

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