JP3925699B2 - Pin insertion / removal device - Google Patents

Description

[0001]
BACKGROUND 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 the plurality of relatively moving members.
[0002]
[Prior art]
Conventionally, as shown in FIGS. 8 to 10, in a tilting device in which the movable member 6 is pivotally supported on the fixed member 7 by the support shaft 8, it is necessary to fix the movable member 6 to the fixed member 7 at a specific position. In some cases, a pin hole 6B is provided on the movable member 6 side, a pin fitting / detaching device 81 is provided on the fixed member 7 side, and the movable member 6 is fixed to the fixed member 7 by inserting the pin 82 into the pin hole 6B. What was made to do is used.
[0003]
This pin fitting / removal device 81 includes 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 inserted into the pin hole 6B. A spring 83 biasing in the direction, a knob 84 provided at the base end portion of the pin 82, and a semi-cylindrical knob stopper 86 provided outside the pin support member 87 are provided.
The front end face 86F of the 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 toward the lower left end. The knob 84 is rotated counterclockwise from the position shown in FIG. 8 while pulling it toward the front side, that is, the extraction side, the knob 84 is engaged with the front end face 86F of the knob stopper 86, and rotated along the inclined front end face 86F. When moved, the pin 82 is pulled out from the fitting position shown in FIG. 9 to the detaching position shown in FIG. 10 against the spring 83 and held in a detached state.
[0004]
A tilt cylinder 15 is provided between the movable member 6 and the fixed member 7, and the movable member 6 tilts to the right and left about the support shaft 8 as the tilt cylinder 15 expands and contracts.
When the movable member 6 is tilted, the knob 82 is pulled to pull out the pin 82 that fixes the movable member 6 and the fixed member 7 from the pin hole 6B, and is held in a detached state, and 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 so that the pin 82 and the pin hole 6 </ b> B are concentric, and then the knob 84 is turned to remove it from the knob stopper 86. Is inserted into the pin hole 6B by the urging force of the spring 83 of the pin fitting / removing device 81. Alternatively, if the knob 84 is previously turned and removed from the knob stopper 86 and the tilting cylinder 15 is expanded and contracted, the pin 82 is biased by the spring 83 at the position where the pin 82 and the pin hole 6B are concentric. Automatically inserted.
[0005]
By the way, when the pin 82 is pulled out from the pin hole 6B, if the pin 82 and the pin hole 6B are not concentric and the pin 82 is in one-side contact with the pin hole 6B, the operator can pull the knob 84. Sometimes it cannot be extracted.
In this case, the operator needs to align the pin 82 and the pin hole 6B so that the pin 82 and the pin hole 6B are accurately concentric by visually expanding and contracting the tilt cylinder 15 while pulling the knob 84 manually. Therefore, the operation for extracting the pin 82 is very troublesome.
[0006]
For this reason, a pin fitting / removing device has been proposed in which a sliding member that slides along the pin is provided, and an elastic body such as a spring that urges each of the extraction side and the insertion side is provided before and after the sliding member. . In this pin fitting / removing device, since the extraction and insertion of the pin are both performed by the urging force of the elastic body, the pin extraction operation and the insertion operation can be easily performed (see Japanese Patent No. 2884138).
[0007]
[Problems to be solved by the invention]
However, when it is necessary to reduce the size of the pin fitting / removing device, for example, in a place where it is difficult to increase the lateral width because the mounting space of the pin fitting / removing device cannot be used unless the overall length is shortened. It is difficult to provide an elastic body that urges the extraction side and an elastic body that urges the insertion side before and after the sliding member.
The present invention solves the above-described problem in the pin fitting / removing device, and the pin can be pulled out and inserted by a biasing force of one elastic body, and is small and easy to pull out and insert the pin. An object is to provide a fitting / removing device.
[0008]
[Means for Solving the Problems]
According to the present invention, in a pin fitting / removal device that inserts a pin from the other member into a pin hole provided in one of the plurality of relatively moving members and relatively fixes the plurality of members, the pin slides along the pins. An insertion sliding member that moves the pin to the insertion side, an extraction sliding member that slides along the pin and moves the pin to the extraction side, an insertion sliding member, and an extraction sliding member; And an elastic body that urges the pin to the insertion side by the insertion operation of the sliding member for insertion and urges the pin to the extraction side by the extraction operation of the sliding member for extraction. This solves the above problem.
[0009]
In this pin fitting / removing device, the pin is urged to the extraction side and the insertion side by one elastic body, and the pin is extracted and inserted by this urging force. Therefore, in any operation of pulling out and inserting the pin, it is not necessary for the operator to accurately align the pin and the pin hole so that the pin can be easily pulled out and inserted.
Further, the pin fitting / removing device can be installed in a narrow place without increasing its size.
In a pin fitting / removing device having a plurality of pins, a plurality of pins can be simultaneously inserted into the pin holes by one operation by providing a sliding connection member that interlocks the sliding members for inserting each pin.
[0010]
In addition, if a pin connecting / disconnecting device having a plurality of pins is provided with a sliding connecting member that interlocks the sliding member for extracting each pin, the plurality of pins can be simultaneously extracted from the pin hole by one operation. it can.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
1 is a front view of a tilting device having a pin fitting / removing device according to an embodiment of the present invention, FIG. 2 is a right side view of the tilting device having a pin fitting / removing device, and FIG. A line step sectional drawing, FIGS. 4-6 is explanatory drawing of the action | operation of a pin fitting / extraction apparatus.
Here, in the tilting device, the movable member 6 is pivotally supported by the fixed member 7 so as to be tiltable by the support shaft 8, and a pin hole is formed on the movable member 6 side in order to fix the movable member 6 to the fixed member 7 at a specific position. 6B, the pin fitting / removing device 1 is provided on the fixing member 7 side.
[0012]
A tilt cylinder 15 is provided between the movable member 6 and the fixed member 7, and the movable member 6 tilts to the right and left about the support shaft 8 as the tilt cylinder 15 expands and contracts.
In this pin fitting / removing device 1, a pin 2 is slidably inserted in a pin support member 17 fixed to the fixing member 7.
A pin shaft 4 projects from the front side of the pin 2, that is, the extraction side. The tip side (extraction side) of the pin shaft 4 slides along the pin shaft 4 to insert the pin 2 into the insertion side. A sliding member 3 for insertion is provided for moving to. At the tip of the pin shaft 4, a retaining portion 4 </ b> A that prevents the insertion sliding member 3 from being pulled out is formed.
[0013]
A hollow cylindrical extraction sliding member 5 is provided on the base end side (insertion side) of the pin shaft 4 to slide along the pin shaft 4 and move the pin 2 to the extraction side. Yes.
In the extraction sliding member 5, the insertion sliding member 3 is interposed between the insertion sliding member 3 and the extraction sliding member 5, and the pin 2 is moved to the insertion side by the insertion operation of the insertion sliding member 3. A coil spring 9 is provided as an elastic body that urges and urges the pin 2 to the extraction side by the extraction operation of the extraction sliding member 5.
[0014]
Stoppers 3 </ b> A and 5 </ b> A protrude from the right side surfaces of the insertion sliding member 3 and the extraction sliding member 5. The stoppers 3 </ b> A and 5 </ b> A are provided so as to fit in the end frame 10 </ b> A of the sliding assist member 10.
The sliding auxiliary member 10 is slidably supported by a guide 13 fixed to the fixing member 7, and a knob 14 having one end penetrating the fixing member 7 is rotatable on the sliding auxiliary member 10. Is fitted.
[0015]
The fixing member 7 is fixedly provided with a knob stopper 11 having an insertion side fixing groove 11A and an extraction side fixing groove 11B, and the knob 14 is provided with a stopper pin 12. When the pin 2 is inserted, the stopper pin 12 is locked by the insertion side fixing groove 11A. When the pin 2 is extracted, the stopper pin 12 is locked by the extraction side fixing groove 11B.
As shown in FIG. 3, when the pin 2 fitted in the pin hole 6B is pulled out, the knob 14 is turned to release the stopper pin 12 from the insertion side fixing groove 11A and pulled to the pulling side, and the stopper pin 12 is pulled out. Locks to the outlet side fixing groove 11B. Then, as shown in FIG. 4, the sliding auxiliary member 10 moves to the extraction side, and the end frame 10A engages the stopper 5A to move the extraction sliding member 5 to the extraction side.
[0016]
As a result, the coil spring 9 is compressed and urges the pin 2 to the extraction side via the insertion sliding member 3, so that the pin 2 is detached from the pin hole 6B and extracted as shown in FIG. It is.
When the pin 2 is extracted from the pin hole 6B, if the pin 2 and the pin hole 6B are not concentric and the pin 2 is in contact with the pin hole 6B, the operator cannot pull out even if the operator pulls the knob 14. Sometimes.
[0017]
In this case, the operator performs an expansion / contraction operation of the tilt cylinder 15 to perform alignment so that the pin 2 and the pin hole 6B are concentric. When the pin 2 and the pin hole 6B are 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 is extracted.
When inserting the pin 2 into the pin hole 6B, the knob 14 is turned from the state shown in FIG. 5 to release the stopper pin 12 from the extraction side fixing groove 11B and push it to the insertion side, so that the stopper pin 12 is inserted into the insertion side fixing groove 11A. Lock. Then, as shown in FIG. 6, the sliding 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.
[0018]
As a result, the coil spring 9 is compressed and urges the pin 2 to the insertion side via the extraction sliding member 5, so that if the pin 2 and the pin hole 6B are concentric, as shown in FIG. The pin 2 is inserted into the pin hole 6B and is in 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, the operator cannot press the knob 14 for insertion.
In this case, the operator performs an expansion / contraction operation of the tilt cylinder 15 to perform alignment so that the pin 2 and the pin hole 6B are concentric. When the pin 2 and the pin hole 6B are concentric during the alignment operation, the pin 2 is inserted into the pin hole 6B by the biasing force of the coil spring 9.
[0019]
In this way, the pin 2 is urged to the extraction side and the insertion side by one coil spring 9, and the pin 2 is extracted and inserted by this urging force. However, it is not necessary to align the pin 2 and the pin hole 6B so that they are concentric while the operator pulls or pushes the knob 14 manually. Can be done.
FIG. 7 is an explanatory view of the configuration of a pin fitting / removing device showing another embodiment of the present invention.
[0020]
In this pin fitting / removing device 21, two pairs 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 sliding assist 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 between the pins 2.
Since the other configuration is the same as that of FIG. 3, the same members are denoted by the same reference numerals and detailed description thereof is omitted.
[0021]
When pulling out the pin 2, the knob 14 is turned to separate the stopper pin 12 from the insertion-side fixing groove 11A and pulled to the extraction side, and the stopper pin 12 is locked to the extraction-side fixing groove 11B. Then, the sliding auxiliary member 10 moves to the extraction side, and both end frames 10A engage the stopper 5A to move both extraction sliding members 5 to the extraction side.
As a result, both the coil springs 9 are compressed, and both the pins 2 are urged toward the extraction side via the insertion sliding member 3, so that both the pins 2 are separated from the pin holes 6B and extracted. It is.
[0022]
When the pin 2 is withdrawn from the pin hole 6B, if one pin 2 and the pin hole 6B are not concentric and the pin 2 is in a state of being in contact with the pin hole 6B, the operator can pull the knob 14 The pin 2 may not be extracted.
In this case, with the eccentric side pin 2 still fitted, the operator performs an expansion / contraction operation of the tilting cylinder 15 to perform alignment so that the eccentric side pin 2 and the pin hole 6B are concentric. When the pin 2 and the pin hole 6B are 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 is extracted.
[0023]
When the pin 2 is withdrawn from the pin hole 6B, if both the pin 2 and the pin hole 6B are not concentric and the pin 2 is in a state of being in contact with the pin hole 6B, the operator can pull the knob 14 The pin 2 may not be extracted.
In this case, the operator performs an expansion / contraction operation of the tilting cylinder 15 to perform alignment so that both the pins 2 and the pin holes 6B are concentric. When one of the pins 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 is further pulled out. When the hole 6B is concentric, the pin 2 is pulled out of the pin hole 6B by the urging force of the coil spring 9.
[0024]
When the pin 2 is inserted into the pin hole 6B, the knob 14 is turned to disengage the stopper pin 12 from the extraction side fixing groove 11B and push it toward the insertion side, thereby locking the stopper pin 12 in the insertion side fixing groove 11A. Then, the sliding auxiliary member 10 moves to the insertion side, and both end frames 10A engage with the stopper 3A to move both insertion sliding members 3 to the insertion side.
Thereby, both the coil springs 9 are compressed, and both the pins 2 are urged to the insertion side via the extraction sliding member 3, so that if both the pins 2 and the pin holes 6B are concentric, The pin 2 is inserted into the pin hole 6B and is in a fitted state.
[0025]
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 press the knob 14 to insert the pin 2.
In this case, in a state where the concentric pin 2 is inserted, the operator performs an expansion / contraction operation of the tilting cylinder 15 to perform alignment so that the eccentric side pin 2 and the pin hole 6B are concentric. When the pin 2 and the pin hole 6B are concentric during the alignment operation, the pin 2 is inserted into the pin hole 6B by the biasing force of the coil spring 9.
[0026]
When the pin 2 is inserted into the pin hole 6B, if both the pin 2 and the pin hole 6B are not concentric, even if the operator presses the knob 14, neither pin 2 can be inserted.
In this case, the operator performs an expansion / contraction operation of the tilting cylinder 15 to perform alignment so that both the pins 2 and the pin holes 6B are concentric. When one of the pins 2 and the pin hole 6B are concentric during the alignment operation, the pin 2 is inserted into the pin hole 6B by the biasing force of the coil spring 9, and the other pin 2 and the pin hole 6B are further connected. When concentric, the pin 2 is inserted into the pin hole 6 </ b> B by the urging force of the coil spring 9.
[0027]
This pin fitting / removing device 21 can simultaneously pull out a plurality of pins 2 from the pin hole 6B and insert them into the pin hole 6B at the same time.
In the above-described pin fitting / removing devices 1 and 21, the operator pulls and operates the knob 14 manually. However, it can be configured to be provided with an actuator or the like.
In that case, the remote control of the pin 2 can be performed by remotely operating the actuator or the like.
[0028]
Further, the pin fitting / removal devices 1 and 21 have been described in the case where the movable member 6 is used in a tilting device that is pivotally supported by the fixed member 7 by the support shaft 8, but a plurality of members are relatively moved relative to each other. For example, the movable member can be used to fix a member that moves linearly with respect to the fixed member.
[0029]
【The invention's effect】
As described above, in the pin fitting / removing device of the present invention, the extraction and insertion of the pin can be performed with the biasing force of one elastic body. Accordingly, the pin can be easily pulled out and inserted, and the pin fitting / removing device can be used in a narrow place without increasing its size.
[Brief description of the drawings]
FIG. 1 is a front view of a tilting device provided with a pin fitting / removing device according to an embodiment of the present invention.
FIG. 2 is a right side view of a tilting device provided with a pin fitting / removing device.
FIG. 3 is a cross-sectional view taken along line AA in FIG. 1;
FIG. 4 is an explanatory view of the operation of the pin fitting / removing device.
FIG. 5 is an explanatory view of the operation of the pin fitting / removing device.
FIG. 6 is an explanatory view 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 provided with a conventional pin fitting / removing device.
9 is a cross-sectional view taken along line BB in FIG.
FIG. 10 is an explanatory view of the operation of a conventional pin fitting / removing device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pin fitting / detaching device 2 Pin 3 Sliding member 3A stopper 4 Pin shaft 4A Stopping part 5 Pulling slide member 5A Stopper 6 Movable member 7 Fixing member 8 Support shaft 9 Coil spring 10 Sliding auxiliary member 10A End Frame 11 Knob stopper 11A Insertion side fixing groove 11B Extraction side fixing groove 12 Stopper pin 13 Guide 14 Knob 15 Tilt cylinder 17 Pin support member 21 Pin fitting / removing device

Claims (4)

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 the plurality of relatively moving members,
A sliding member for insertion that slides along the pin and moves the pin toward the insertion side, a sliding member that slides along the pin and moves the pin toward the extraction side, and a sliding member for insertion Provided between the sliding member for extraction, the pin is urged to the insertion side by the insertion operation of the insertion sliding member, and the pin is urged to the extraction side by the extraction operation of the extraction sliding member A pin fitting / removing device comprising an elastic body. 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, comprising a plurality of pins, wherein a sliding connecting member for interlocking a sliding member for insertion of each pin is provided. apparatus. The pin fitting / detaching device according to claim 1, 2 or 3, comprising a plurality of pins, wherein a sliding connecting member for interlocking the sliding sliding member for each pin is provided. Pin fitting / removing device.

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