JP2010105728A - Sealant feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealant feeding device which is more user friendly. <P>SOLUTION: The sealant feeding device 100 includes a body part 101, a first flow path 102, a second flow path 104 provided independently from the first flow path 102, a flow path shutting-off part 110 with a first penetrating hole 112 and a second penetrating hole 114 and a forcing member 120 to force the flow path shutting-off part 110 in the direction to shut off the first flow path 102 and the second flow path 104. The flow path shutting-off part 110 is slid against pushing force of the forcing member 120 by pressure generated when a first component and a second component are extruded from a first storing chamber and a second storing chamber and the first flow path 102 and the second flow path 104 are opened and the first flow path 102 communicates with the first penetrating hole 112 and also the second flow path 104 communicates with the second penetrating hole 114 and the first component discharged from the first penetrating hole 112 and the second component discharged from the second penetrating hole 114 are mixed to form a sealant. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sealing agent supply device.

Conventionally, a sealing agent used for repairing punctures in tires such as automobiles is created by mixing multiple components, and is not limited to puncture repairing sealing agents. An apparatus for mixing them is known (for example, see Patent Documents 1 to 5).
Japanese Utility Model Publication No. 5-29983 JP 2005-126144 A JP 2006-96033 A JP 2008-2513 A JP 2008-168455 A

  In a sealing agent supply device that creates a sealing agent by mixing a plurality of constituents, the reaction starts when the constituents come into contact with each other, and once the reaction is started, the reaction cannot be stopped halfway. Therefore, in the case where the container containing each constituent agent is connected to one channel and the sealing agent is discharged from the channel, the mixture of the constituent agents remaining in the channel is cured. In some cases, the flow path is clogged. In addition, when the discharge port of the sealing agent supply device is detached from the sealing agent insertion port of the tire, the constituent agent or the mixture may be scattered.

  This invention is made | formed in view of such a condition, The place made into the objective is to provide the sealing agent supply apparatus which is more convenient.

  In order to solve the above problems, a sealing agent supply device according to an aspect of the present invention is provided with a substantially cylindrical main body portion and a first constituent agent that is provided so as to penetrate the main body portion and constitutes the sealing agent. The first flow path communicated with the first storage chamber and the first flow path are provided so as to penetrate the main body portion independently of the first flow path, and the second flow path that constitutes the sealing agent is accommodated therein. 2 having a second flow path communicating with the storage chamber, a first through hole and a second through hole, slidably provided in the main body, and blocking the first flow path and the second flow path. A flow path blocking section and a biasing member that biases the flow path blocking section in a direction to block the first flow path and the second flow path, and the first constituent agent is pushed out from the first storage chamber. And the pressure generated when the second component is pushed out of the second storage chamber. The flow path blocking portion slides against the urging force of the urging member to open the first flow path and the second flow path, and the first flow path and the first through hole communicate with each other. The second flow path and the second through hole communicate with each other, and the first constituent agent discharged from the first through hole and the second constituent agent discharged from the second through hole are mixed together. A sealing agent is produced.

  According to this aspect, it is possible to provide a sealing agent supply device that is easier to use.

  According to the present invention, it is possible to provide a sealing agent supply device that is easier to use.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and repeated descriptions are omitted as appropriate.

(Embodiment 1)
FIG. 1 is a schematic cross-sectional view illustrating a configuration of a sealing agent supply apparatus according to Embodiment 1. As shown in FIG. 1, the sealing agent supply device 100 according to the present embodiment includes a substantially cylindrical main body 101, a first channel 102 and a second channel 104 provided in the main body 101, and a first A flow path blocking unit 110 that blocks the flow path 102 and the second flow path 104.

  The sealing agent container 200 to which the sealing agent supply device 100 is attached has a first storage chamber 202 in which a first constituent agent that constitutes the sealing agent is accommodated, and a second accommodating agent that contains the second constituent agent that constitutes the sealing agent. 2 storage chambers 204. Further, the sealing agent container 200 includes a moving partition part 206 for reducing the volumes of the first storage chamber 202 and the second storage chamber 204 and a piston 208 for moving the moving partition part 206. A moving partition 206 and a piston 208 are provided at one end of the sealing agent container 200, and an opening 202 a of the first storage chamber 202 and a second storage chamber 204 are provided at the other end of the sealing agent container 200. The opening 204a is provided. In the sealing agent container 200, when an external force (white arrow in the figure) is applied to the piston 208, the movable partition wall 206 moves to the left in the figure, and the volume of the first storage chamber 202 and the second storage chamber 204 is increased. Is supposed to decrease.

  The main body 101 of the sealing agent supply device 100 has a substantially cylindrical shape, and the outer shape thereof is not particularly limited, and may be circular or polygonal. One end of the main body 101 in the longitudinal direction is connected to the end of the sealing agent container 200 on the side where the openings 202a and 204a are formed.

  The first flow path 102 and the second flow path 104 are provided so as to penetrate the main body 101 in the longitudinal direction of the main body 101. In a state where the sealing agent supply device 100 is attached to the sealing agent container 200, one end of the first flow path 102 is communicated with the first storage chamber 202 through the opening 202a. In addition, one end of the second flow path 104 communicates with the second storage chamber 204 through the opening 204a. A partition wall 106 is provided between the first flow path 102 and the second flow path 104, so that the first flow path 102 and the second flow path 104 are independent.

  An opening 108 through which the end of the first channel 102 and the end of the second channel 104 communicate with the end (tip) of the main body 101 opposite to the side connected to the sealing agent container 200. Is provided. The first flow path 102 and the second flow path 104 merge at the opening 108. The opening 108 constitutes a discharge port of the sealing agent supply device 100. The channel blocker 110 is provided in the main body 101 at the opening 108 so as to block the first channel 102 and the second channel 104.

  Hereinafter, the structure of the distal end portion of the sealing agent supply device 100 including the flow path blocking portion 110 (region surrounded by a dotted line in FIG. 1) will be described in detail. 2A and 2B are schematic views of the distal end portion of the sealing agent supply device 100. FIG. 2A is a cross-sectional view of the tip, and FIG. 2B is a cross-sectional view taken along the line CC in FIG. 2A.

  As shown in FIG. 2A, the flow path blocking unit 110 has a substantially T-shaped cross section, extends in the short direction of the main body 101, and blocks the first flow path 102 and the second flow path 104. Part 111 and movement restricting part 116 extending in the longitudinal direction of main body 101 from blocking part 111. Further, the flow path blocking unit 110 is provided to be slidable in the longitudinal direction of the main body 101 with respect to the main body 101. The outer peripheral surface of the blocking part 111 is in liquid-tight contact with the inner peripheral surface of the opening 108. In addition, the openings of the first flow path 102 and the second flow path 104 are blocked with the bottom face in contact with the bottom face of the opening 108. Further, as shown in FIGS. 2A and 2B, the blocking portion 111 has a first through hole 112 and a second through hole 114 so as to penetrate the blocking portion 111 in the longitudinal direction of the main body portion 101. Is formed. The first through hole 112 and the second through hole 114 are arranged so as to be displaced from the first channel 102 and the second channel 104 in the longitudinal direction of the main body 101.

  The movement restricting portion 116 is inserted into an insertion recess 107 formed at the end of the partition wall 106 on the opening 108 side. A biasing member 120 such as a coil spring is provided between the surface of the movement restricting portion 116 parallel to the flow path blocking portion 110 and the bottom surface of the partition wall portion 106, and one end portion of the biasing member 120 is The other end portion of the urging member 120 is connected to the partition wall portion 106 and is connected to the movement restricting portion 116. The urging member 120 urges the flow path blocking unit 110 in a direction that blocks the first flow path 102 and the second flow path 104. The flow path blocking unit 110 is movable against the urging force of the urging member 120. Therefore, the flow path blocking unit 110 blocks the first flow path 102 and the second flow path 104 so that they can be opened. .

  A restriction recess 118 is formed on the side surface of the movement restriction portion 116, and a restriction protrusion 130 is provided at a position corresponding to the restriction recess 118 on the inner peripheral surface of the insertion recess 107. The restriction convex portion 130 is inserted into the restriction concave portion 118, and the surface of the restriction concave portion 118 parallel to the blocking portion 111 is in contact with the surface of the biasing member 120 and the restriction convex portion 130. The movement of the blocking unit 110 is restricted.

  On the inner peripheral surface of the end region of the opening 108, a locking member 132 for preventing the passage blocking unit 110 from falling out from the opening 108 is projected.

  Subsequently, the operation of the sealing agent supply apparatus 100 according to the present embodiment will be described. FIGS. 3A and 3B are diagrams illustrating an operation state of the sealing agent supply apparatus 100. FIG. 3A shows a state where the first constituent agent and the second constituent agent are being discharged, and FIG. 3B shows a state where the discharge of the first constituent agent and the second constituent agent is interrupted. Show.

  As shown in FIG. 1, when an external force (white arrow in FIG. 1) is applied to the piston 208, the piston 208 moves the moving partition wall 206 in the left direction in FIG. Thereby, the volume of the 1st storage chamber 202 and the 2nd storage chamber 204 decreases, and the 1st constituent agent in the 1st storage chamber 202 and the 2nd constituent agent in the 2nd storage chamber 204 are the opening 202a and the opening 204a, respectively. And is pushed out of each containment chamber. The first constituent agent pushed out from the first storage chamber 202 moves to the opening 108 side of the sealing agent supply device 100 through the first flow path 102 and is blocked by the flow path blocking section 110. Similarly, the second constituent agent pushed out from the second storage chamber 204 moves to the opening 108 side of the sealing agent supply device 100 through the second channel 104 and is blocked by the blocking unit 111 of the channel blocking unit 110. You can stop.

  In a state where the first constituent agent and the second constituent agent are blocked by the blocking unit 111, pressure is applied to the blocking unit 111 in a direction to move the flow path blocking unit 110 toward the distal end side of the sealing agent supply device 100. When the external force is further applied to the piston 208, the first constituent agent and the second constituent agent are further pushed out from the first storage chamber 202 and the second storage chamber 204, and the pressure applied to the blocking portion 111 increases. . When the pressure applied to the blocking portion 111 increases to exceed the biasing force of the biasing member 120, the flow path blocking portion 110 slides against the biasing force of the biasing member 120 as shown in FIG. Then, the first flow path 102 and the second flow path 104 are moved to an open position. When the flow path blocking unit 110 moves toward the distal end side of the sealing agent supply device 100, the surface of the regulating recess 118 and the regulating convex part 130 come into contact with each other, whereby the flow path blocking unit 110 further moves toward the distal end portion. Is suppressed.

  When the flow path blocking unit 110 moves to an open position where the first flow path 102 and the second flow path 104 are opened, the first flow path 102 and the first through hole 112 communicate with each other. The second through hole 114 communicates. Then, the first constituent agent is discharged from the first flow path 102 through the first through hole 112, and the second constituent agent is discharged from the second flow path 104 through the second through hole 114 (FIG. The black arrow in the middle), the first constituent agent and the second constituent agent are mixed on the front end side of the flow passage blocking portion 110 in the opening portion 108 to generate a sealing agent.

  Also, for example, when the sealing agent injection operation is interrupted and the external force applied to the piston 208 is reduced, or when the movable partition wall 206 reaches the end of the movable region and cannot move any more, The pressure applied to the blocking portion 111 is gradually reduced by the first component and the second component (black arrows in the figure) pushed out from the first storage chamber 202 and the second storage chamber 204. When the pressure applied to the blocking portion 111 decreases and falls below the biasing force of the biasing member 120, the flow path blocking portion 110 slides due to the biasing force of the biasing member 120 as shown in FIG. (In the direction of the white arrow), the first flow path 102 and the second flow path 104 are moved to a blocking position. Thereby, the discharge of the first constituent agent from the first flow path 102 and the discharge of the second constituent agent from the second flow path 104 are stopped.

  Summarizing the operational effects of the configuration described above, the sealing agent supply device 100 according to the present embodiment includes the first flow path 102 communicated with the first storage chamber 202 and the second flow channel communicated with the second storage chamber 204. A flow path 104, a flow path blocking section 110 that is slidably provided, and a biasing member 120 that biases the flow path blocking section 110 in a direction that blocks the first flow path 102 and the second flow path 104. I have. And since the 1st flow path 102 and the 2nd flow path 104 are independent and a 1st structural agent and a 2nd structural agent mix in the front-end | tip part side rather than the flow-path interruption | blocking part 110, 2 in a flow path. The agent does not react and harden. Therefore, the usability of the sealing agent supply device 100 is improved.

  In addition, the flow path blocking unit 110 corresponds to the pressure generated when the first constituent agent is pushed out of the first storage chamber 202 and the pressure generated when the second constituent agent is pushed out of the second storage chamber 204. It moves to the open position which opens the 1st flow path 102 and the 2nd flow path 104, or the interruption | blocking position which interrupt | blocks them, and, thereby, discharge of a 1st structural agent and a 2nd structural agent is adjusted. Therefore, leakage of the constituent agent can be prevented even if the sealing agent injection operation is interrupted halfway, and the discharge port of the sealing agent supply device 100 is disconnected from the tire sealing agent insertion port during the sealing agent injection operation. However, the amount of scattering of the constituent agent or mixture can be reduced. Thereby, the usability of the sealing agent supply apparatus 100 is improved.

  The present invention is not limited to the above-described embodiment, and an appropriate combination of the elements of the embodiment is also effective as an embodiment of the present invention. Various modifications such as design changes can be added to the embodiments based on the knowledge of those skilled in the art, and the embodiments to which such modifications are added can be included in the scope of the present invention. . The configuration shown in each figure is for explaining an example, and any configuration that can achieve the same function can be changed as appropriate, and the same effect can be obtained.

  For example, in the above-described first embodiment, the configuration in which the flow path blocking unit 110 includes the first through-hole 112 and the second through-hole 114 has been exemplified, but it corresponds to a sealing agent made of three or more constituent agents. In addition, a number of flow paths and through holes corresponding to the constituent agent may be provided. For example, in the case of a sealing agent composed of three components, a third through hole 115 is further provided in the flow path blocking unit 110 as shown in FIG. In this case, the main body 101 is provided with a third flow path (not shown). FIG. 4 is a cross-sectional view taken along the line CC in FIG.

It is a schematic sectional drawing which shows the structure of the sealing agent supply apparatus which concerns on Embodiment 1. FIG. 2A and 2B are schematic views of the distal end portion of the sealing agent supply device. FIGS. 3A and 3B are diagrams illustrating the operating state of the sealing agent supply device. It is sectional drawing on the line corresponding to CC line in FIG. 2 (A).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 Sealing agent supply apparatus, 101 Main body part, 102 1st flow path, 104 2nd flow path, 106 Partition part, 107 Insertion recessed part, 108 Opening part, 110 Flow path blocking part, 111 Blocking part, 112 1st through-hole, 114 second through hole, 115 third through hole, 116 movement restricting portion, 118 restricting concave portion, 120 biasing member, 130 restricting convex portion, 132 locking member, 200 sealing agent container, 202 first containing chamber, 202a opening, 204 2nd storage chamber, 204a opening, 206 moving partition part, 208 piston.

Claims (1)

A substantially cylindrical main body,
A first flow path that is provided so as to penetrate the main body and communicates with a first storage chamber that stores a first constituent agent that constitutes a sealing agent;
A second flow path that is provided so as to penetrate the main body portion independently of the first flow path, and communicates with a second storage chamber that stores a second constituent agent that constitutes a sealing agent;
A flow path blocking part that has a first through hole and a second through hole, is slidably provided in the main body, and blocks the first flow path and the second flow path;
An urging member that urges the flow path blocking portion in a direction to block the first flow path and the second flow path,
Due to the pressure generated when the first constituent agent is pushed out of the first storage chamber and the pressure generated when the second constituent agent is pushed out of the second storage chamber, the flow path blocking portion is attached to the biasing member. The first flow path and the second flow path are opened by sliding against the force, and the first flow path and the first through hole communicate with each other, and the second flow path and the second through hole are communicated with each other. And the first constituent agent discharged from the first through hole and the second constituent agent discharged from the second through hole are mixed to produce a sealing agent. Agent supply device.

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