JP2003159618A - Apparatus for inserting and pulling out pin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily pull out and insert a pin, and to miniaturize an apparatus for it. <P>SOLUTION: In the apparatus 1 the pin 2 is inserted from a fixed member 7 into a pin hole 6B arranged on a movable member 6 in order to relatively fix the movable member 6 and the fixed member 7. The apparatus is provided with an insertion sliding member 3 for sliding the pin 2 toward the insertion side along the pin 2, a pull-out sliding member 5 for sliding the pin 2 toward the pull-out side by sliding along the pin 2, and a coil spring 9 which is arranged between the insertion sliding member 3 and the pull-out sliding member 5 for energizing the pin 2 toward the insertion side by operating the insertion sliding member 3, and toward the pull-out side by operating the pull-out sliding member 5. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pin fitting / removing device for relatively fixing a plurality of members by inserting a pin from the other member into a pin hole provided in one of a plurality of members that move relative to each other.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 8 to 10, in a tilting device in which a movable member 6 is pivotally supported on a fixed member 7 by a support shaft 8, the movable member 6 is fixed at a specific position. If it is necessary to fix the pin to the movable member 6 side,
B, the pin fitting / removing device 81 is provided on the fixing member 7 side, and the pin 82
The movable member 6 is fixed to the fixed member 7 by inserting the pin into the pin hole 6B.

This pin fitting / removing device 81 has a pin 82 slidably inserted in a pin support member 87 fixed to the fixing member 7 and a pin 82 provided in the pin support member 87 and having a pin hole 6B. A spring 83 for urging the pin 82 in the inserting direction, a knob 84 provided at the base end of the pin 82, and a semi-cylindrical knob stopper 86 provided outside the pin support member 87 are provided. Front end face 86F of knob stopper 86
Is inclined so that the distance between the fixing member 7 and the front end face 86F gradually increases from the upper right end to the lower left end. While pulling the knob 84 toward the front side, that is, the extraction side, rotate it counterclockwise from the position in FIG. 8 to move the knob 84 to the knob stopper 86.
The front end face 8 which is inclined by engaging with the front end face 86F of the
When it is rotated along 6F, the pin 82 moves to the spring 83.
Against this, it is withdrawn from the fitting position shown in FIG. 9 to the disengagement position shown in FIG. 10 and held in the disengaged state.

A tilting cylinder 15 is provided between the movable member 6 and the fixed member 7, and the movable member 6 tilts right and left about the support shaft 8 as the tilting cylinder 15 expands and contracts. When tilting the movable member 6, the knob 84 is pulled around to fix the movable member 6 and the fixed member 7 to the pin 8.
2 is pulled out from the pin hole 6B and held in the separated state,
The tilt cylinder 15 is expanded and contracted. When the movable member 6 is fixed to the fixed member 7, the tilt cylinder 15 is expanded and contracted to align the pin 82 and the pin hole 6B so that the pin 82 and the pin hole 6B are aligned with each other, and then the knob 84 is rotated to remove the pin 82 from the knob stopper 86. Is inserted into the pin hole 6B by the biasing force of the spring 83 of the pin fitting / removing device 81. Or the knob 8 beforehand
If 4 is turned off from the knob stopper 86 and the tilting cylinder 15 is expanded or contracted, the pin 82 automatically moves into the pin hole 6B by the biasing force of the spring 83 at the position where the pin 82 and the pin hole 6B are concentric. Is inserted.

By the way, when the pin 82 is pulled out from the pin hole 6B, the pin 82 and the pin hole 6B are not concentric and the pin 8
When the pin 2 is in a state of being partly contacted with the pin hole 6B, it may not be possible to pull out even if the operator pulls the knob 84. In this case, the operator needs to manually extend and retract the tilt cylinder 15 while manually pulling the knob 84 to visually align the pin 82 and the pin hole 6B so as to be accurately concentric. Therefore, the operation of pulling out the pin 82 is very troublesome.

Therefore, a pin fitting / removing device is proposed in which a sliding member that slides along a pin is provided, and elastic bodies such as springs that urge the pulling side and the inserting side are provided in front of and behind the sliding member. Has been done. In this pin fitting / removing device, since both the pulling out and the inserting of the pin are performed by the urging force of the elastic body, the pulling out operation and the inserting operation of the pin can be easily performed (Patent No. 2).
884138).

[0007]

However, when it is necessary to reduce the size of the pin fitting / decoupling device, the pin fitting / decoupling device cannot be used unless the total length is shortened due to the mounting space of the pin fitting / decoupling device, and the lateral width is also reduced. In a place where it is difficult to increase the amount, it is difficult to provide an elastic body that urges the slide member before and after the sliding member and an elastic body that urges the insertion side, respectively. The present invention is to solve the above-mentioned problems in a pin fitting / removing device, in which the pin can be pulled out and inserted by the biasing force of one elastic body, and the pin is small and can be easily pulled out and inserted. An object is to provide a fitting / removing device.

[0008]

According to the present invention, a pin fitting / removing device for relatively fixing a plurality of members by inserting a pin from the other member into a pin hole provided in one of a plurality of members that move relative to each other. In, the sliding member for insertion that slides along the pin and moves the pin to the insertion side, the sliding member for extraction that slides along the pin and moves the pin to the extraction side, and the sliding for insertion Provided between the member and the slide member for extraction, the pin is urged toward the insertion side by the insertion operation of the slide member for insertion, and the pin is moved to the extraction side by the operation of extracting the slide member for extraction. The above problem is solved by providing an elastic body for urging.

In this pin fitting / removing device, one elastic body urges the pin toward the pull-out side and the insert side, and the urging force pulls out and inserts the pin. Therefore, it is not necessary for the operator to perform accurate alignment so that the pin and the pin hole are concentric in any operation of pulling out and inserting the pin,
The pin can be easily pulled out and inserted. Further, the pin fitting / removing device does not become large and can be installed in a narrow place. In the pin fitting / removing device provided with a plurality of pins, a plurality of pins can be simultaneously inserted into the pin holes by one operation by providing a slide connecting member that interlocks the slide members for inserting each pin.

Further, in a pin fitting / removing device having a plurality of pins, if a sliding connecting member for interlocking the sliding member for pulling out each pin is provided, a plurality of pins can be simultaneously pulled out from the pin holes by one operation. Can be issued.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view of a tilting device having a pin fitting / removing device according to an embodiment of the present invention, and FIG. 2 is a right side view of a tilting device having a pin fitting / removing device. 3 is A in FIG.
-A line staircase sectional views, FIGS. 4 to 6 are explanatory views of the operation of the pin fitting / removing device. Here, in the tilting device, the movable member 6 is pivotally supported on the fixed member 7 by the support shaft 8 and is fixed to the fixed member 7 at a specific position.
The pin fitting / removing device 1 is provided on the side of the fixing member 7 and the pin hole 6B.

A tilting cylinder 15 is provided between the movable member 6 and the fixed member 7, and the movable member 6 tilts right and left about the support shaft 8 due to expansion and contraction of the tilting cylinder 15. In this pin fitting / removing device 1, the pin 2 is slidably inserted into a pin supporting member 17 fixed to the fixing member 7. A pin shaft 4 is projectingly provided on the front side of the pin 2, that is, on the extraction side, and the tip end side (extraction side) of the pin shaft 4 slides along the pin shaft 4 to insert the pin 2 on the insertion side. The sliding member 3 for insertion for moving to is provided. A stopper portion 4A is formed at the tip of the pin shaft 4 to prevent the slide member 3 for insertion from being pulled out.

On the base end side (insertion side) of the pin shaft 4, there is provided a hollow cylindrical pulling sliding member 5 for sliding along the pin shaft 4 to move the pin 2 to the pulling side. It is provided. The slide member 5 for extraction is interposed between the slide member 3 for insertion and the slide member 5 for extraction, and the pin 2 is moved to the insertion side by the insertion operation of the slide member 3 for insertion. A coil spring 9 is provided as an elastic body that urges the pin 2 toward the extraction side when the extraction slide member 5 is extracted.

Stoppers 3A and 5A are provided on the right side surfaces of the slide member 3 for insertion and the slide member 5 for extraction.
The stoppers 3A and 5A are provided so as to be housed in the end frame 10A of the sliding auxiliary member 10. The sliding auxiliary member 10 is slidably supported by a guide 13 fixed to a fixed member 7, and a knob 14 having one end penetrating the fixed member 7 is rotatable on the sliding auxiliary member 10. Is fitted to.

The fixing member 7 has an insertion side fixing groove 11A.
And a knob stopper 11 having an extraction side fixing groove 11B formed therein.
Is fixed, and the stopper pin 12 is provided on the knob 14. When inserting the pin 2, the stopper pin 12 is locked in the insertion side fixing groove 11A. When the pin 2 is pulled out, the stopper pin 12 is locked in the pull-out side fixing groove 11B. When pulling out the pin 2 fitted in the pin hole 6B as shown in FIG. 3, the knob 14 is turned to disengage the stopper pin 12 from the insertion side fixing groove 11A and pulled toward the pulling out side.
Is locked in the extraction side fixing groove 11B. Then, as shown in FIG. 4, the slide assisting member 10 moves to the extraction side, and the end frame 1
0A engages the stopper 5A to move the extraction slide member 5 to the extraction side.

As a result, the coil spring 9 is compressed and the pin 2 is urged toward the extraction side via the sliding member 3 for insertion, so that the pin 2 separates from the pin hole 6B as shown in FIG. Be extracted. When the pin 2 is pulled out from the pin hole 6B, if the pin 2 and the pin hole 6B are not concentric with each other and the pin 2 is in one-side contact with the pin hole 6B, it cannot be pulled out even if the operator pulls the knob 14. Sometimes.

In this case, the operator uses the tilting cylinder 15
Is operated to expand and contract to align the pin 2 and the pin hole 6B concentrically. When the pin 2 and the pin hole 6B become concentric during the alignment operation, the pin 2 is separated from the pin hole 6B by the urging force of the coil spring 9 and pulled out. When inserting the pin 2 into the pin hole 6B, the knob 14 is turned from the state shown in FIG.
Then, the stopper pin 12 is locked in the insertion side fixing groove 11A. Then, as shown in FIG. 6, the slide assisting member 10 moves to the insertion side, and the end frame 10A
Engages the stopper 3A to move the insertion sliding member 3 to the insertion side.

As a result, the coil spring 9 is compressed and the pin 2 is urged toward the insertion side through the pull-out sliding member 5. Therefore, if the pin 2 and the pin hole 6B are concentric, FIG. As shown, the pin 2 is inserted into the pin hole 6B and brought into a fitted state. When the pin 2 is inserted into the pin hole 6B, if the pin 2 and the pin hole 6B are not concentric, it cannot be inserted even if the operator pushes the knob 14. In this case, the operator extends and retracts the tilting cylinder 15 to align the pin 2 and the pin hole 6B so as to be concentric. If the pin 2 and the pin hole 6B become concentric during the alignment operation, the pin 2 is urged by the coil spring 9 to cause the pin hole 6B to move.
Inserted in.

In this way, the one coil spring 9 urges the pin 2 toward the extraction side and the insertion side, and the urging force causes the pin 2 to be extracted and inserted, so that the pin 2 can be extracted and inserted. In any operation, the operator manually pushes the knob 14
It is not necessary to align the pin 2 and the pin hole 6B so as to be accurately concentric with each other while pulling or pushing, and the pin can be easily pulled out and inserted. FIG. 7 is an explanatory diagram of a configuration of a pin fitting / removing device showing another embodiment of the present invention.

In this pin fitting / removing device 21, two sets of pins 2 are arranged in parallel at a predetermined interval. Here, both end frames 10A are provided at positions facing each other, and the slide assisting member 10 is a sliding connecting member that connects both end frames 10A and moves them in parallel at the same time. The knob 14 is provided in the middle of both pins 2. Since other configurations are the same as those in FIG. 3, the same members are designated by the same reference numerals and detailed description thereof will be omitted.

When the pin 2 is pulled out, the knob 14 is turned to disengage the stopper pin 12 from the insertion side fixing groove 11A and pulled to the ejection side, and the stopper pin 12 is pulled out.
Lock to B. Then, the slide assist member 10 moves to the extraction side, and both end frames 10A engage the stoppers 5A to move both extraction slide members 5 to the extraction side. As a result, both coil springs 9 are compressed and both pins 2 are urged toward the extraction side through the sliding member 3 for insertion.
Both pins 2 are respectively removed from the pin holes 6B and pulled out.

When the pin 2 is pulled out from the pin hole 6B, if one pin 2 and the pin hole 6B are not concentric with each other and the pin 2 is in one-side contact with the pin hole 6B, the operator pushes the knob 14 Sometimes you cannot pull out the pin 2 even if you pull it. In this case, with the pin 2 on the eccentric side still fitted, the operator extends and retracts the tilting cylinder 15 to align the pin 2 on the eccentric side with the pin hole 6B. When the pin 2 and the pin hole 6B become concentric during the alignment operation, the pin 2 is separated from the pin hole 6B by the urging force of the coil spring 9 and pulled out.

When pulling out the pin 2 from the pin hole 6B, if both pins 2 and the pin hole 6B are not concentric with each other and the pin 2 is in one-side contact with the pin hole 6B, the operator pushes the knob 14 The pin 2 may not be pulled out even if it is pulled.
In this case, the operator expands and contracts the tilting cylinder 15 to align the pins 2 and the pin holes 6B so that they are concentric with each other. If one of the pins 2 and the pin hole 6B become concentric during the alignment operation, the pin 2 is disengaged from the pin hole 6B by the urging force of the coil spring 9, and is further extracted from the other pin 2. When the hole 6B and the hole 6B are concentric with each other, the pin 2 is separated from the pin hole 6B by the urging force of the coil spring 9 and pulled out.

When inserting the pin 2 into the pin hole 6B,
Turn the knob 14 to pull out the stopper pin 12
It is detached from B and pushed toward the insertion side, and the stopper pin 12 is locked in the insertion side fixing groove 11A. Then, the sliding auxiliary member 1
0 moves to the insertion side, and both end frames 10A move to the stopper 3
By engaging A, both sliding members 3 for insertion are moved to the insertion side. As a result, both coil springs 9 are compressed and both pins 2 are urged toward the insertion side via the sliding member 3 for extraction, so that if both pins 2 and pin hole 6B are concentric, The pin 2 is inserted into the pin hole 6B and brought into a fitted state.

When the pin 2 is inserted into the pin hole 6B, if one pin 2 and the pin hole 6B are not concentric, the operator cannot push the knob 14 to insert the pin 2. In this case, with the pin 2 on the concentric side still inserted, the operator expands and contracts the tilting cylinder 15 to perform alignment so that the pin 2 on the eccentric side and the pin hole 6B are concentric. When the pin 2 and the pin hole 6B become concentric during the alignment operation, the pin 2 is inserted into the pin hole 6B by the urging force of the coil spring 9.

When inserting the pin 2 into the pin hole 6B, if both the pins 2 and the pin hole 6B are not concentric, even if the operator pushes the knob 14, neither pin 2 can be inserted. In this case, the operator is
5 is expanded / contracted to align the pins 2 and the pin holes 6B so that they are concentric with each other. When one of the pins 2 and the pin hole 6B become concentric during the alignment operation, the pin 2 is inserted into the pin hole 6B by the urging force of the coil spring 9, and the other pin 2 and the pin hole 6B are separated from each other. When concentric, the pin 2 is inserted into the pin hole 6B by the biasing force of the coil spring 9.

The pin fitting / removing device 21 can simultaneously pull out a plurality of pins 2 from the pin hole 6B by one operation and insert them into the pin hole 6B at the same time. In the pin fitting / removing devices 1 and 21, the operator manually pushes and operates the knob 14, but an actuator or the like may be provided so that the operator can operate the knob 14. In that case, it is also possible to remotely control the fitting / removal of the pin 2 by remotely operating the actuator or the like.

The pin fitting / removing devices 1 and 21 have been described as being used in a tilting device in which the movable member 6 is tiltably supported by the fixed member 7 by the support shaft 8, but a plurality of members are widely used. Can be used to fix an object that moves relatively, for example, an object in which a movable member moves linearly with respect to a fixed member.

[0029]

As described above, in the pin fitting / removing device of the present invention, the pin can be pulled out and inserted by the urging force of one elastic body. Therefore, it is easy to pull out and insert the pin, and the pin fitting / removing device does not become large in size and can be used in a narrow space.

[Brief description of drawings]

FIG. 1 is a front view of a tilting device including a pin fitting / removing device according to an embodiment of the present invention.

FIG. 2 is a right side view of a tilting device including a pin fitting / removing device.

3 is a step sectional view taken along the line AA of FIG.

FIG. 4 is an explanatory view of the operation of the pin fitting / removing device.

FIG. 5 is an explanatory diagram of the operation of the pin fitting / removing device.

FIG. 6 is an explanatory diagram of the operation of the pin fitting / removing device.

FIG. 7 is an explanatory diagram of a configuration of a pin fitting / removing device showing another embodiment of the present invention.

FIG. 8 is a front view of a tilting device including a conventional pin fitting / removing device.

9 is a sectional view taken along line BB of FIG.

FIG. 10 is an explanatory view of the operation of the conventional pin fitting / removing device.

[Explanation of symbols]

1-pin insertion / extraction device 2 pin 3 Sliding member for insertion 3A stopper 4-pin axis 4A retaining part 5 Sliding member for extraction 5A stopper 6 movable members 7 fixing member 8 spindles 9 coil spring 10 Sliding auxiliary member 10A end frame 11 Knob stopper 11A insertion side fixing groove 11B Extraction side fixed groove 12 Stopper pin 13 Guide 14 knobs 15 Tilt cylinder 17 pin support member 21-pin insertion / extraction device

Claims (4)

[Claims] 1. A pin fitting / removing device for relatively fixing a plurality of members by inserting a pin from the other member into a pin hole provided in one of a plurality of members that move relative to each other. An insertion sliding member that slides to move the pin to the insertion side, an extraction sliding member that slides along the pin to move the pin to the extraction side, an insertion sliding member and an extraction slide An elastic body that is provided between the moving member and the insertion sliding member to urge the pin toward the insertion side, and that pulls out the extraction sliding member to urge the pin toward the extraction side; A pin fitting / removing device, comprising: 2. The pin fitting / removing device according to claim 1, wherein the elastic body is a coil spring. 3. The pin fitting / removing device according to claim 1 or 2, further comprising a plurality of pins, wherein a sliding connecting member for interlocking a sliding member for inserting each pin is provided. Pin fitting and removing device. 4. The method according to claim 1, further comprising a plurality of pins.
Alternatively, the pin fitting / removing device according to claim 3, further comprising a sliding connecting member that interlocks the pulling out sliding member of each pin.