JP2010139054A - Fitting insertion jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting insertion jig for easily inserting a fitting into an end of a tube without using grease. <P>SOLUTION: The fitting insertion jig 10 comprises: a tube holding part 13 which is supported by a base 11 and which holds the tube 12; a block 14 which is provided on the base 11 at a position opposed to the tube holding part 13; a fitting holding part 17 which is supported by the block 14 so as to be movable along the axis 16 of the fitting 15, and holds the fitting 15; and a movement mechanism 20 which moves the fitting holding part 17. Since the fitting is inserted into the tube by moving the fitting holding part by the movement mechanism without holding the tube by hand, even an unskilled worker can easily insert the fitting with fewer man-hours. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an improvement of a joint insertion jig for inserting a joint into a tube.

For example, the liquid supply path for sending the washer liquid to the window of the vehicle is composed of a flexible tube. And a tube is relayed with a joint suitably for the purpose of branching or extension (for example, refer to patent documents 1).
Japanese Patent No. 3303725 (FIG. 4)

Patent document 1 is demonstrated based on the following figure.
FIG. 11 is a diagram for explaining a basic configuration of a conventional technique. A pipe 100 includes tubes 101 and 101 and a joint 103 that connects these tubes 101 and 101. The outer diameters of the heads 104 and 104 of the joint 103 are larger than the inner diameters of the tubes 101 and 101. As a result, since the joint 103 is fastened to the tubes 101, 101, the tubes 101, 101 are difficult to be removed from the joint 103.

In the piping 100 as described above, it is necessary to insert a joint into the end of the tube. An example of this insertion method will be described with reference to the next figure.
FIG. 12 is a diagram for explaining a method of inserting a joint into the end portion of a conventional tube. First, the joint 103 is set in the hole 106 of the joint holding jig 105. On the other hand, the tube 101 is warmed and softened. Then, as indicated by the arrow (1), the operator uses the hand 107 to fit the tube 101 into the joint 103.

However, since a certain amount of force is required to firmly insert the joint 103 into the end portion 102 of the tube 101, an unskilled worker takes time.
Further, when grease is applied to the head portion 104 of the joint 103 to facilitate the insertion of the joint 103, the grease enters the tube 101 and becomes a liquid impurity passing through the tube 101.
That is, a technique for easily inserting a joint into the end portion of the tube without using grease is required.

  It is an object of the present invention to provide a joint insertion jig for easily inserting a joint into an end portion of a tube without using grease.

  The invention according to claim 1 is a joint insertion jig for inserting a joint into an end of the tube, the joint insertion jig being supported by a base and holding the tube, and the tube holding part A block provided on the base at a position opposite to the base, a joint holding portion that is supported by the block so as to be movable along the axis of the joint, and holds the joint; and a moving mechanism that moves the joint holding portion. The moving mechanism can move the joint holding portion so that the joint can be inserted into the tube.

  According to a second aspect of the present invention, the moving mechanism includes a rack provided in the joint holding portion, a pinion rotatably supported by the block and meshing with the rack, and a swing lever that is operated by an operator and rotates the pinion. It is characterized by becoming.

  The invention according to claim 3 is characterized in that the joint holding portion includes a long base member and a joint support piece that is detachably provided at the tip of the base member and holds the joint.

  The invention according to claim 4 is characterized in that the joint support piece includes a pin to be inserted into the joint.

  In the invention according to claim 5, the tube holding part is supported by the base so as to be movable along the axis of the joint, and the tube holding part pushed by the joint holding part is supported between the base and the tube holding part. An impact force absorbing mechanism that absorbs the impact force is provided.

  The invention according to claim 6 is characterized in that the base includes a rail extending along the joint axis, and the tube holding portion and the joint holding portion are movably and interchangeably attached to the rail.

In the invention according to claim 1, a tube holding portion for holding the tube, a joint holding portion that is supported by the block so as to be movable along the axis of the joint, and holds the joint, and a moving mechanism that moves the joint holding portion. Consists of. Since the joint holding portion is moved by the moving mechanism and the joint is inserted into the tube without holding the tube by hand, the joint can be easily inserted without man-hours even if it is an unskilled worker.
In addition, since it is not necessary to hold the tube and the joint by hand, even a worker with a weak gripping force can work. Also, it is possible to work with one hand.
Furthermore, since no grease is applied, impurities are not mixed.

  In the invention according to claim 2, the moving mechanism includes a rack provided in the joint holding portion, a pinion that meshes with the rack, and a swinging lever that rotates the pinion. The operator can insert the joint into the tube by operating the swing lever. Since the rack, the pinion, and the swing lever are all simple parts, the moving mechanism can be configured at low cost.

  In the invention according to claim 3, the joint holding portion includes a joint support piece that is detachably provided at the tip of the base member and holds the joint. By exchanging the joint support piece, it is possible to cope with joints of different sizes.

  In the invention according to claim 4, the joint is supported by a pin. The joint can be supported by a clamp, but if it is a pin, an operator can easily fit a hollow joint. As a result, work efficiency can be improved.

In the invention according to claim 5, the tube holding part is movable, and an impact force absorbing mechanism is provided between the base and the tube holding part.
When inserting the joint into the tube, if the joint holding part is moved at a high speed, an impact may be applied to the tube holding part. Even in this case, according to the present invention, the tube holding part can be moved, and the impact energy can be absorbed and attenuated by the impact force absorbing mechanism. As a result, the joint holding part can be moved at a higher speed, the working time can be shortened, and the productivity can be increased.

  In the invention which concerns on Claim 6, the tube holding | maintenance part and the joint holding | maintenance part are attached to the rail extended along the axis | shaft of a joint so that a movement and replacement | exchange are possible. That is, the tube holding part and the joint holding part can be freely arranged along the rail. Therefore, the joint can be inserted into various types of tubes, and workability can be improved.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of a joint insertion jig according to the present invention. A joint insertion jig 10 is supported by a base 11 and holds a tube 12 and a tube holding part 13 at a position facing the tube holding part 13. A block 14 provided in the base 11, a joint holding portion 17 that is supported by the block 14 so as to be movable along the shaft 16 of the joint 15 and holds the joint 15, and a moving mechanism that moves the joint holding portion 17 20 (details will be described later). The joint 15 can be inserted into the tube 12 by moving the joint holding portion 17 by the moving mechanism 20.

Details of the base 11 and the tube holding portion 13 will be described next.
The base 11 includes a rail 21 that extends along the axis 16 of the joint 15. And the tube holding | maintenance part 13 and the block 14 are attached to this rail 21 so that a movement and replacement | exchange are possible.
However, in this example, the position of the tube holding portion 13 is fixed by the fixing pins 22 and 22. Further, the block 14 includes a lock lever 23. With this lock lever 23, the block 14 can be fixed at an arbitrary position on the rail 21.

  The tube holding portion 13 is provided with a block-shaped base member 24, a lower mold portion 26 that is fixed to the base member 24 via a bolt 25 and receives the tube 12, and is swingably provided on the base member 24 via a hinge 27. A pressing plate 28, an upper mold portion 32 that is fixed to the pressing plate 28 with bolts 31 and presses the tube 12 together with the lower mold portion 26, and a pressing plate 28 that is provided on the pressing plate 28 and is operated by hand. An opening / closing bar 33 that opens and closes, a hook 34 that is provided on the pressing plate 28 and hooks on the base member 24, and a hook receiving portion 35 that is provided on the base member 24 and receives the hook 34.

The lower mold part 26 and the upper mold part 32 are provided with semicircular groove parts 36 and 36 corresponding to the tube 12. By closing the pressing plate 28, the tube 12 is sandwiched and fixed between the lower mold part 26 and the upper mold part 32.
The semicircular groove portions 36, 36 include large diameter portions 37, 37 having a diameter larger than the outer diameter of the tube 12 on the side where the joint 15 is inserted. Thereby, the joint 15 can be smoothly inserted into the tube 12.

  The hook 34 can be easily hooked on the hook receiving portion 35 by operating the opening / closing bar 33. Even when the presser plate 28 is closed and the hand is released from the open / close bar 33, the tube 12 does not come off when the joint 15 is inserted. Thereby, the joint 15 can be inserted with one hand.

The lower mold part 26 and the upper mold part 32 can be easily replaced by removing the bolts 25 and 31. By exchanging the lower mold part 26 and the upper mold part 32, it is possible to deal with tubes 12 having different outer diameters.
The material of the lower mold part 26 and the upper mold part 32 is preferably a resin, but is not limited thereto, and may be changed according to the material of the tube 12 such as rubber or metal.

The configuration of the moving mechanism 20 that moves the joint holding portion 17 will be described with reference to the next drawing.
2 is a cross-sectional view taken along line 2-2 of FIG. 1, and the moving mechanism 20 is a rack integrally formed on the lower surface of the joint support piece 42 supported on the side plates 41, 41 standing on the base 11 so as to be horizontally movable. 43, a pinion 45 rotatably supported by the side plate 44 and meshing with the rack 43, a shaft member 47 fitted in the shaft hole 46 of the pinion 45, and an operator connected to the shaft member 47 to operate the pinion 45. It comprises a rocking lever 48 that rotates. The pinion 45 and the shaft member 47 are provided with key grooves 51, 51. The pinion 45 is fixed to the shaft member 47 via a key member 51 and a key member 52 fitted in the key groove 51.

  The block member 14 is provided above the side plates 41, 41, 44, the side plates 41, 41 standing on the base 11 and supporting the rack 43, the side plates 44 standing on the base 11 and supporting the pinion 45, and the side plates 41, 41, 44. It consists of a top plate 53.

  The joint holding portion 17 includes a long base member 54 that is movably provided in the left and right directions in the figure, a support piece receiving portion 56 that is provided at the tip of the base member 54 via a locking pin 55, A joint support piece 42 that is provided in the support piece receiving portion 56 and holds the joint 15, and a forward stopper 58 that is fixed to the rear end of the base member 54 via a screw 57 and restricts the forward movement of the base member 54. The support piece receiving portion 56 includes a reverse stopper portion 61 that restricts the reverse movement of the base member 54.

  A rack 43 is provided on the lower surface of the base member 54. The upper surface of the base member 54 is slidably in contact with the top plate 53. As a result, the joint holding portion 17 can move stably to the left and right in the figure without rattling.

  FIG. 3 is a view for explaining a main part of the joint holding portion. As shown in FIG. 3A, the joint support piece 42 includes a pin 62 to be inserted into the joint (FIG. 1, reference numeral 15). The joint support piece 42 is detachably provided on the support piece receiving portion 56. Thereby, since it can replace | exchange for the joint holding piece 42 provided with the pin 62 of a different size, the joint (FIG. 1, code | symbol 15) of a different size can also be hold | maintained.

  (B) is an arrow view of (a), and the joint support piece 42 includes a seat surface 63 to be placed on the support piece receiving portion 56 and a connecting pin 64 for connecting the joint support piece 42 to the support piece receiving portion 56. ing. The joint support piece 42 is moved as shown by the arrow (2), and the coupling pin 64 is inserted into the pin hole 65 of the support piece receiving portion 56, so that the joint support piece 42 is removably attached to the support piece receiving portion 56. Can do.

The operation of the joint insertion jig described above will be described next.
FIG. 4 is a diagram illustrating a process up to inserting a joint.
(A) is a figure explaining the process of setting the joint 15 and the tube 12, and the joint 15 is inserted in the pin (FIG. 1, code | symbol 62) of the joint holding | maintenance part 17. FIG. The tube 12 is set in the tube holding part 13. As shown by the arrow (3), the open / close bar 33 is moved to sandwich the tube 12.

  (B) is a figure explaining the process of inserting a joint, and the rocking | fluctuation lever 48 is moved like an arrow (4). Then, the joint 15 moves forward and is inserted into the tube 12 as indicated by an arrow (5).

FIG. 5 is a diagram for explaining the steps up to removing the tube in which the joint is inserted.
(A) is a figure explaining the process of removing a pin from a joint, and the rocking | fluctuation lever 48 is moved like the arrow (6). Then, as shown by the arrow (7), the joint holding portion 17 moves backward, and the pin 62 is pulled out from the joint 15. As shown by the arrow (8), the opening / closing bar 33 is moved to open the holding plate 28.
As shown to (b), the tube 12 in which the joint 15 was inserted is obtained by taking out the tube 12 in the direction of the arrow (9).

  FIG. 6 is a diagram for explaining the tube into which the joint is inserted. The outer diameter D of the head portion 66 of the tube 12 is larger than the inner diameter d of the tube 12. For this reason, the joint 15 is fastened to the tube 12 and does not come off easily. Since the head 66 has a taper 67, the joint 15 can be smoothly inserted into the tube 12. Since the joint 15 includes the abutting portion 68, the joint can be inserted by an appropriate length.

Next, another embodiment of the present invention will be described.
FIG. 7 is a diagram for explaining a main part of another embodiment of the present invention. The parts constituted by the same members as in FIG.
The joint insertion jig 10 of another embodiment is provided with a standing wall portion 69 raised upward at one end of the base 11.

  The tube holding part 13 is supported by the base 11 so as to be movable along an axis 16 of a joint (reference numeral 12 in FIG. 1). The standing wall portion 69 of the base 11 is provided with an impact force absorbing mechanism 70 that supports the tube holding portion 13 pushed by the joint holding portion (FIG. 1, reference numeral 17) and absorbs the impact force.

The impact force absorbing mechanism 70 includes a cylinder 72 that is provided in the standing wall portion 69 of the base 11 and stores oil 71 therein, a piston 73 that is slidably provided in the cylinder 72 and receives the resistance of the oil 71, and the inside of the cylinder 72 A compression spring 74 that urges the piston 73 in the direction of pushing it back, a shaft 75 that is connected to the piston 73 and penetrates outside the cylinder, and a support portion 76 that is connected to the shaft 75 and supports the tube holding portion 13. Become. The piston 73 is provided with an oil hole 77 through which oil flows.
The impact force absorbing mechanism 70 may be provided on the tube holding unit 13 side.

Next, the operation of the impact force absorbing mechanism 70 will be described.
When the joint (FIG. 1, reference numeral 15) is inserted into the tube 12, if the joint holding portion (FIG. 1, reference numeral 17) is moved at a high speed, an impact force may be applied to the tube 12. The tube holding part 13 is moved by this impact force. The tube holding part 13 is received by the support part 76. The support portion 76 pushes the piston 73 via the shaft 75. The oil 71 on the compression spring 74 side receives pressure from the piston 73, passes through the oil hole 77, and flows to the opposite side of the piston 73. As a result, the shock absorbing mechanism 70 absorbs the shock energy and attenuates it.
The compressed compression spring 74 pushes the piston 73 back, so that the support portion 76 returns to the original position. Since the base 11 is provided with the stopper 78, the tube holding part 13 is stopped at the original position.

  The impact force absorbing mechanism 70 is not limited to the above-described configuration, and other configurations may be used as long as the impact force to the tube holding portion such as a simple compression spring and sponge rubber can be absorbed.

Next, another embodiment of the present invention will be described.
FIG. 8 is a view for explaining a tube and a joint used in still another embodiment. As shown in FIG. 8A, a tube 81 with parts is connected to a tube 12 and a joint 82 at one end of the tube 12. And a long part 83 assembled.
Moreover, as shown in (b), the joint 84 with parts consists of the joint 15 and the bending tube 86 with the disk part 85 assembled | attached to the end of this joint.

FIG. 9 is a plan view of still another embodiment of the present invention, in which parts constituted by the same members as in FIG.
The base 11 includes a rail 21 that extends along the axis of the joint (FIG. 8, reference numeral 84), and the tube holding portions 13, 87, the joint holding portion 88, and the pressing portion 93 are movable and replaceable on the rail 21. It is attached.

The tube holding portion 87 includes a tube groove portion 91 corresponding to the component-equipped tube 81 shown in FIG.
The joint holding portion 88 includes a joint groove portion 92 corresponding to the joint with component 84 shown in FIG. The pressing portion 93 includes a connecting pin 94 that is inserted into the pin hole (FIG. 3, reference numeral 66) of the support piece receiving portion 56 and connects the pressing portion 93 to the moving mechanism 20, and a pressing wall 95 that presses the joint holding portion 88. I have.

Next, the operation of still another embodiment will be described.
A tube with parts (FIG. 8, reference numeral 81) is set in the tube holding portion 87. The joint 84 with parts is set in the joint holding portion 88. The swing lever 41 is operated to advance the joint holding portion 88 and insert the joint 84 with parts.

  FIG. 10 is a diagram for explaining a state in which the joint with components is inserted. As shown in (a), the joint with components 84 is advanced in the direction of the arrow (10). As shown in (b), the joint 15 is inserted into the tube 12.

  In the embodiment, the joint insertion jig according to the present invention is applied to a tube for supplying a washer liquid to a vehicle window. However, the joint insertion jig can be applied to a tube for guiding air and is used for general industrial machines. It can be applied to any pipe.

  The joint insertion jig of the present invention is suitable for inserting a joint into a tube.

It is a perspective view of the joint insertion jig concerning the present invention. FIG. 2 is a sectional view taken along line 2-2 of FIG. It is a figure explaining the principal part of a joint holding part. It is a figure explaining to the process of inserting a joint. It is a figure explaining to the process of removing the tube in which the joint was inserted. It is a figure explaining the tube in which the joint was inserted. It is a figure explaining the principal part of another Example of this invention. It is a figure explaining the tube and coupling which are used for the further another Example. It is a top view of another another example of the present invention. It is a figure explaining the state in which the joint with components is inserted. It is a figure explaining the basic composition of the conventional technology. It is a figure explaining the method to insert a joint into the edge part of the conventional tube.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Joint insertion jig, 11 ... Base, 12 ... Tube, 13 ... Tube holding part, 14 ... Block, 15 ... Joint, 16 ... Joint holding part, 20 ... Moving mechanism, 21 ... Rail, 42 ... Joint support piece, DESCRIPTION OF SYMBOLS 43 ... Rack, 45 ... Pinion, 48 ... Swing-type lever, 54 ... Base member, 62 ... Pin, 70 ... Impact-force absorption mechanism, 87 ... Tube holding part, 88 ... Joint holding part.

Claims (6)

A joint insertion jig for inserting a joint into an end of a tube,
The joint insertion jig is supported by a base and holds a tube, a tube holding part, a block provided on the base at a position facing the tube holding part, and the block moves along the axis of the joint A joint holding portion that is supported so as to hold the joint, and a moving mechanism that moves the joint holding portion, and the joint holding portion can be moved by the moving mechanism to insert the joint into the tube. A joint insertion jig characterized by being able to perform.   The moving mechanism includes a rack provided in the joint holding portion, a pinion that is rotatably supported by the block and meshes with the rack, and a swing lever that is operated by an operator to rotate the pinion. The joint insertion jig according to claim 1, characterized in that:   3. The joint according to claim 1, wherein the joint holding portion includes a long base member and a joint support piece that is detachably provided at a distal end of the base member and holds the joint. 4. Insert jig.   4. The joint insertion jig according to claim 3, wherein the joint support piece includes a pin to be inserted into the joint.   The tube holding part is supported by the base so as to be movable along the axis of the joint, and the tube holding part pressed by the joint holding part is supported between the base and the tube holding part to apply an impact force. The joint insertion jig according to any one of claims 1 to 4, further comprising an impact force absorbing mechanism for absorbing the joint.   The said base is provided with the rail extended along the axis | shaft of a joint, The said tube holding | maintenance part and the said joint holding | maintenance part are attached to this rail so that movement and replacement | exchange are possible. The joint insertion jig according to claim 1.

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