JP2010149233A - Air tube removal tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air tube removal tool improving work efficiency in removing an air tube from a single operation type coupling. <P>SOLUTION: The air tube removal tool 1A for removing the air tube from the single operation type coupling includes: a guide portion 2 which fits along the periphery of the air tube while holding the air tube; a distal end 2a which abuts on a release ring of the single operation type coupling with the guide portion 2 fit along the air tube; and a holder portion 3 which extends from the guide portion 2 to be held by an operator. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a removal tool for removing an air tube attached to a one-touch joint.

  So-called one-touch joints have been widely used for pneumatic piping. This joint is configured so that the air tube can be locked by a lock claw simply by inserting the air tube. A release ring is positioned on the outer periphery of the inserted air tube, and the release ring is interlocked with the lock claw. By pushing the release ring in the direction of inserting the air tube, the lock claw is released from the air tube and the lock of the air tube is released. The lock is released manually by the operator.

  Such one-touch couplings (also referred to as thumb latch couplings) may be placed at various locations in the pneumatic piping system. For example, when a joint is installed in a place that is out of the reach of the operator, or when many joints are densely packed, it is extremely difficult to remove the air tube from the joint.

  Then, an object of this invention is to provide the removal tool of the air tube which can improve the workability | operativity at the time of removing an air tube from a one-touch type coupling.

  Hereinafter, the removal tool of the air tube of this invention is demonstrated. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

  The removal tool of the present invention is for removing the air tube from the one-touch joint (100) that can release the lock of the air tube by pushing the release ring (107) located on the outer periphery of the locked air tube (TB). The air tube detaching tool (1A, 1B), which is formed integrally with the guide portion (2, 12) that can be fitted along the outer periphery of the air tube with the air tube being sandwiched therebetween. An abutting portion (2a, 12a) that abuts against the release ring of the one-touch joint in a state where the guide portion is along the air tube, and a grip portion that extends from the guide portion and is gripped by an operator (3, 13) is provided to solve the above-described problem.

  According to this removal tool, the operator holding the gripping part moves toward the joint while keeping the guide part along the outer periphery of the air tube extending from the one-touch joint, so that the abutting part integral with the guide part Can be accurately abutted against the release ring. Then, when the operator pushes the removal tool in a state where the butting portion is abutted against the release ring, the release ring is pushed without touching the release ring, so that the lock of the air tube can be easily released. For this reason, even if the joint where the air tube should be removed is placed out of the reach of the operator, it is easier to aim by using the guide part, and the abutting part is accurately pushed into the release ring. You can guess. Thereby, workability | operativity at the time of removing an air tube from a one-touch type coupling improves. Note that the length of the grip portion may be determined as appropriate, and the grip portion may be provided with a diameter-expanded portion having an enlarged outer diameter so that the operator can easily grip the grip portion.

  1 aspect of the removal tool of this invention WHEREIN: The said guide part is comprised so that it may bend in a predetermined direction with respect to the said holding part, and a front-end | tip part (2a) may be divided into two forks, and the said front-end | tip part is the said abutting part. May function as According to this aspect, since the guide part is bent in a predetermined direction with respect to the gripping part, it is easy to access the air tube from the side. For this reason, it becomes easy to pinch an air tube with the front-end | tip part divided into two forks, and workability | operativity improves further.

  In one aspect of the removal tool of the present invention, the guide portion is configured by cutting at least part of the tubular member (P) so that the end surface (12a) is non-annular, An end surface may function as the abutting portion. According to this aspect, since a guide part can be comprised by excising a part of tubular member, a process is easy. In addition, when a large number of one-touch joints are densely arranged by making the tubular member thin so that the inner diameter is larger than the outer diameter of the air tube and the outer diameter is equal to or smaller than the outer diameter of the release ring. Even if it exists, the removal operation | work of an air tube can be performed, without affecting the other coupling adjacent to the coupling | bonding to be removed.

  As described above, according to the removal tool of the present invention, even if the joint to be removed of the air tube is arranged in a place where the worker cannot reach, the aim is to use the guide portion. It becomes easy to determine, and the abutting portion can be abutted with the release ring accurately. Thereby, workability | operativity at the time of removing an air tube from a one-touch type coupling improves.

(First form)
FIG. 1 is a perspective view showing an appearance of an air tube detachment tool according to the first embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view illustrating the configuration of a one-touch joint. First, the structure and function of a one-touch joint will be described with reference to FIG. A one-touch joint (hereinafter abbreviated as “joint”) 100 includes a metal body 101 made of metal with an external thread formed on the outer periphery, and a resin body made of resin fitted with an O-ring 103 interposed in the metal body 101. 102. These main bodies 101 and 102 are configured to be hollow so that fluid such as compressed air can be guided.

  A lock mechanism 104 that locks the flexible air tube TB is provided at the end of the resin main body 102. The lock mechanism 104 is mounted on a lock claw 105 that bites into the inserted air tube TB, a guide ring 106 that supports the lock claw 105, and an inner periphery of the guide ring 106, and is positioned on the outer periphery of the air tube TB. And a release ring 107. When the air tube TB is inserted into the lock mechanism 104, the lock claw 105 is engaged with the outer periphery of the air tube TB, so that the air tube TB is locked so as not to be pulled out. In order to seal the locked air tube TB and the resin main body 102, an elastic sleeve 108 made of an elastic body such as rubber is mounted between them. The release ring 107 is provided so that the sleeve portion 107a abuts against the lock claw 105. When the release ring 107 is pushed in the insertion direction of the air tube TB (left direction in FIG. 2), the lock claw 105 is moved radially outward. Displace. As a result, the lock claw 105 is separated from the air tube TB and the lock is released. Therefore, the air tube TB can be removed from the joint 100 by pulling the air tube TB while pushing the release ring 107.

  The removing tool 1A shown in FIG. 1 is configured as a tool for removing the air tube TB from the joint 100. 1 A of removal tools are provided with the guide part 2 in which the front-end | tip part 2a was divided into the fork, and the holding part 3 extended from the guide part 2 and hold | gripped by the operator. Since the front end portion 2a is divided into two forks, the guide portion 2 can be placed along the outer periphery with the air tube TB sandwiched between the forks. The guide part 2 is bent in a predetermined direction with respect to the grip part 3. In this embodiment, the guide portion 2 is bent so as to form an obtuse angle with respect to the grip portion 3.

  The grip portion 3 includes a rod portion 5 having a round bar shape, and a diameter-expanded portion 6 that is attached to an end portion of the rod portion 5 and has an outer diameter larger than that of the rod portion 5. The diameter-expanded portion 6 is provided to make it easier for an operator to grip, and is made of a resin material such as rubber, which is different from the metal rod portion 5. The length of the grip portion 3 can be set as appropriate according to the application. It is also possible to detach the grip portion 3 from the guide portion 2 and replace a plurality of grip portions 3 having different lengths with the guide portion 2.

  FIG. 3 is an explanatory view showing a method of using the removal tool 1A. First, as shown in FIG. 3A, the removal tool 1A is approached from the side of the air tube TB so that the air tube TB is sandwiched between the bifurcated tip 2a. Next, as illustrated in FIG. 3B, the removal tool 1 </ b> A is moved toward the joint 100 while keeping the bifurcated root of the guide portion 2 along the air tube TB. At this time, the operator may support the air tube TB. When the guide portion 2 is moved along the air tube TB, the distal end portion 2a hits the release ring 107 of the joint 100. Then, as shown in FIG. 3 (c), when the removal tool 1A is pushed in the direction of the arrow in a state where the tip 2a is abutted against the release ring 107, the release ring 107 is pushed and the lock of the air tube TB is released. Is done. In this way, the distal end portion 2a of the guide portion 2 is integral with the guide portion 2, and can be abutted against the release ring 107 of the joint 100 in a state where the guide portion 2 is along the air tube TB. 2a functions as an abutting portion according to the present invention.

  According to the detaching tool 1A of the present embodiment, the distal end portion 2a of the guide portion 2 can be accurately abutted against the release ring 107 by moving the guide portion 2 toward the joint 100 along the air tube TB. Then, the release ring 107 can be pushed in without the operator touching the release ring 107 by pushing in the removal tool 1 </ b> A in a state where the distal end portion 2 a is in contact with the release ring 107. Therefore, even if the joint 100 to be removed of the air tube TB is arranged in a place out of the reach of the operator, it is easy to aim by using the guide portion 2, and the tip portion 2a is accurately released. It can abut against the ring 107. Thereby, workability | operativity at the time of removing the air tube TB from the coupling 100 improves. Further, since the guide 1 is bent in a predetermined direction with respect to the grip 3, the removal tool 1 </ b> A can be easily accessed from the side of the air tube TB and the workability is further improved.

(Second form)
Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a perspective view showing the appearance of the removal tool 1B according to the second embodiment, and FIG. 5 is an explanatory view showing how to use the removal tool 1B.

  As shown in FIG. 4, the removal tool 1 </ b> B is configured as a tool for removing the air tube TB from the joint 100, and the guide unit 12 that can be along the air tube TB and the work extending from the guide unit 12. And a grip portion 13 that is gripped by a person.

  The guide portion 12 is configured by cutting a part of a thin cylindrical tube P as a tubular member in the longitudinal direction so that the end surface 12a has a non-returned C-shape. Since a part of the thin cylindrical tube P is cut away, the cross-sectional shape from the end surface 12a to the terminal end 12b of the guide portion 12 is C-shaped. Since the guide part 12 is constituted by excision of the thin cylindrical tube P, the guide part 12 can be easily processed. The non-circular cross-section from the end surface 12a to the terminal end 12b constitutes an open portion 12c. Thereby, the guide part 12 can be along the outer periphery in the state which pinched | interposed the air tube TB by the open part 12c. The thin cylindrical tube P which is a constituent material of the guide portion 12 has a wall thickness t and an outer diameter φ so that the inner diameter is larger than the outer diameter of the air tube TB and the outer diameter is equal to or smaller than the outer diameter of the release ring TB. Is set.

  The grip portion 13 has a hollow rod portion 15 that extends integrally from the guide portion 12, and an end portion of the rod portion 15 is provided with an enlarged diameter portion 16 having an enlarged outer diameter. The enlarged-diameter portion 16 is provided to make it easier for an operator to grip, and is made of a resin material such as rubber, which is made of a material different from that of the metal rod portion 15.

  Next, a method of using the removal tool 1B will be described with reference to FIG. First, as shown in FIG. 5A, the removal tool 1 </ b> B is placed so that the air tube TB is sandwiched between the opening portions 12 c of the guide portion 12. Next, as shown in FIG. 5B, the removal tool 1B is moved toward the joint 100 while keeping the air tube TB along the guide portion 12, and the end face 12a is moved to the release ring 107 as indicated by an imaginary line. Strike. At this time, the operator may support the air tube TB. Then, as shown in FIG. 5 (c), when the removal tool 1B is pushed in the direction of the arrow with the end face 12a abutted against the release ring 107, the release ring 107 is pushed and the lock of the air tube TB is released. The Thus, since the end surface 12a of the guide part 12 is integral with the guide part 12, and the guide part 12 is abutted against the release ring 107 of the joint 100 in a state along the air tube TB, in this form, the end face 12a is It functions as an abutting part according to the present invention.

  According to the removal tool 1B of this embodiment, the workability of the work of removing the air tube TB is improved in the same manner as the removal tool 1A of the first embodiment. Further, as described above, the thin cylindrical tube P that is a constituent material of the guide portion 12 has a wall thickness t so that the inner diameter is larger than the outer diameter of the air tube TB and the outer diameter is equal to or smaller than the outer diameter of the release ring TB. And the outer diameter φ are set. For this reason, as shown in FIG. 5, even when the joints 100 are densely packed and the gap G between the adjacent air tubes TB is narrow, the thin cylindrical tube P constituting the guide portion 12 is thin. The removal work can be performed by moving the removal tool 1B without affecting other joints 100 and the air tube TB.

  The present invention is not limited to the above embodiments, and can be implemented in various forms within the scope of the gist of the present invention. In the first embodiment, the guide portion is bent so as to form an obtuse angle with respect to the grip portion, but the bending angle may be set as appropriate. For example, the guide portion may be bent at a right angle or an acute angle with respect to the grip portion. In the second embodiment, a cylindrical tube is used as the tubular member, but the cross-sectional shape is not limited as long as it is tubular. Therefore, by cutting off a part of the tubular member, the end surface can be formed into a U shape, a U shape, a V shape, or other non-annular forms. Moreover, in the 2nd form, although a part of tubular member is excised and the guide part is comprised, it is not limited to excising only the part. Therefore, it suffices that at least a part of the tubular member is cut off. For example, the tubular member can be cut out in the longitudinal direction to constitute the guide portion.

The perspective view which showed the external appearance of the removal tool of the air tube which concerns on a 1st form. The cross-sectional schematic diagram explaining the structure of a one-touch type coupling. Explanatory drawing which showed the usage method of the removal tool which concerns on a 1st form. The perspective view which showed the external appearance of the removal tool of the air tube which concerns on a 2nd form. Explanatory drawing which showed the usage method of the removal tool which concerns on a 2nd form.

Explanation of symbols

1A, 1B Removal tool 2 Guide part 2a Tip part (butting part)
3 Gripping part 12 Guide part 12a End face (butting part)
13 Grip part 100 One-touch type joint 107 Release ring TB Air tube P Thin-walled cylindrical tube (tubular member)

Claims (3)

An air tube detachment tool for removing an air tube from a one-touch joint that can release the lock of the air tube by pushing a release ring located on the outer periphery of the locked air tube,
A guide portion that can be provided along an outer periphery of the air tube with the air tube interposed therebetween, and the release ring of the one-touch type joint that is integrally formed with the guide portion and the guide portion is provided along the air tube. An air tube detachment tool comprising: an abutting portion that is abutted against the guide portion; and a gripping portion that extends from the guide portion and is gripped by an operator.   The removal tool according to claim 1, wherein the guide portion is configured to bend in a predetermined direction with respect to the gripping portion and to be divided into two forks, and the tip portion functions as the abutting portion. .   The said guide part is comprised by excising at least one part of a tubular member so that an end surface may become non-annular, The non-annular said end surface is functioning as said abutting part. Removal tool.

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