JP2002372398A - Locking device for object to be locked - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device that can easily and surely lock an object to be locked and can quickly and easily unlock the object. SOLUTION: This locking device is constituted in a state where a locking member 5 with an adaptor section 5c which comes into contact with the object 1 to be locked, and a crank member 6 with a link connecting section B and a hydraulic cylinder 10 connecting section 6a are swingably born. Then the link connecting sections of the members 5 and 6 are pin-connected to each other by means of a link member 9, and the main body of the cylinder 10 which is moved in one direction by means of a spring 10b and in the other direction by means of a hydraulic pressure is swingably born. In addition, the rod 10a of the cylinder 10 and the hydraulic cylinder 10 connecting section 6a of the crank member 6 are pin-connected to each other, and a stopper member which restricts the swinging motion of the member 6 is provided so that, when the adaptor section 5c of the locking member 5 comes into contact with the object 1, the link connecting section B of the crank member 6 may be positioned upward beyond a virtual line 1 connecting the link connecting section A of the locking member 5 to the swinging center C of the crank member 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for fixing an object to be fixed. More specifically, the present invention relates to a fixing device for fixing an object to be fixed, such as a missile, to a mounting base of a missile transport device or the like.

[0002]

2. Description of the Related Art An object to be fixed is often fixed to, for example, a mount. One such example is a mobile missile. For mobile missiles,
It moves from the storage to the launch site on a transport vehicle, etc., but even if subjected to vibration etc. during this transport, fixed objects such as missiles should not fall from the transport vehicle,
It is necessary to transport the product securely fixed to the mounting base.

[0003] Furthermore, missiles and the like at the destination,
It is desirable that the fixed state be released quickly by a simple operation.

In various cases other than missiles, it is necessary that the object to be fixed be firmly fixed and easily released.

Conventionally, in such a missile, for example, as shown in FIG. 5, a fixed object 1 such as a missile taken out of a storage is fastened to a mount 2 of a transport vehicle by fastening with a bolt 13. Have been done.

[0006]

However, when the bolts are tightened and stopped as described above, the tightening operation is performed manually and the operation is complicated. In addition, since the bolts may be forgotten to be tightened, the inspection is extremely complicated and requires huge labor costs.

Further, in the case of a missile, etc., it is necessary to carry out the loading and fixing work quickly, but the work cannot be carried out quickly with such bolts.

In addition, in such a fixing device, it is necessary to firmly fix the device in a state where the vibration can be absorbed so that the device does not drop due to vibration or the like during transportation.

[0009]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention provides a very simple fixing operation, a reliable fixing operation, and a quick and easy release operation. An object of the present invention is to provide an apparatus for fixing an object to be fixed.

Further, the present invention provides an apparatus for fixing an object to be fixed, which can maintain the fixed state after fixing the object without requiring any special power to maintain the state. The purpose is to:

Still another object of the present invention is to provide an apparatus for fixing an object to be fixed, which can be securely fixed even if it receives an impact due to vibration during transportation after fixing.

[0012]

SUMMARY OF THE INVENTION In the present invention, the above-mentioned object is achieved by providing a fixing member provided with an adapter portion for abutting and fixing an object to be fixed at a tip portion at a root portion opposite to the tip portion. The crank member having the link connecting portion and the hydraulic cylinder connecting portion, which is swingably supported, is swingably supported at a portion different from the link connecting portion and the hydraulic cylinder connecting portion. A link connecting portion located in the middle of the root portion and a link connecting portion of the crank member are connected by a pin by a link member, and the one-way movement of the rod is performed by a spring and the other direction movement of the rod is performed by hydraulic pressure. The hydraulic cylinder body of the hydraulic cylinder is swingably supported, and the rod of the hydraulic cylinder and the hydraulic cylinder connecting portion of the crank member are pin-connected. Achieved by fixing device object to be fixed, characterized and.

That is, the present invention provides a device for fixing an object to be fixed, which comprises a crank member, a link member and a hydraulic cylinder, and utilizes a spring force when restraining and a hydraulic cylinder operation when releasing. Therefore, the fixing operation can be performed extremely easily, can be surely fixed, and can be quickly and easily released. This mechanism is provided on the frame, and when the fixed object is restrained, the fixed object is restrained only by the spring force built in the hydraulic cylinder. Therefore, in the present invention, after the object is fixed, the fixed state can be maintained without requiring any special power to maintain the state.

Further, according to the present invention, when the adapter portion of the fixing member comes into contact with the object to be fixed, the link connecting portion of the crank member is connected to the link connecting portion of the fixing member and the swing center of the crank member. It is preferable that a stopper member is provided so as to abut on the crank member and limit the swing of the crank member so as to be located above an imaginary line connecting the two.

That is, according to the present invention, when the object to be fixed is moving at a high speed, the position of the point B connecting the link member and the crank member is the point A connecting the link member and the fixed member and the swing center point of the crank member. By contacting the crank member with the stopper member in a state above the imaginary line connecting C, even if a high load acts on the adapter portion of the fixed member, the load is transferred from the fixed member through the link member and the crank member. It is received by the stopper member and is not transmitted to the hydraulic cylinder. For this reason, even if it receives an impact due to vibration or the like during conveyance after the fixing, the fixing is surely continued.

On the other hand, if the position of the point B connecting the link member and the crank member is shifted downward from an imaginary line connecting the point A connecting the link member and the fixed member and the swing center point C of the crank member. When fixed in a certain state, when a large external load acts on the fixing member from the fixed object to the fixed object restraint,
Due to the force acting on the hydraulic cylinder from the fixed member via the link member and the crank member, the hydraulic cylinder contracts against the spring force built into the hydraulic cylinder and cannot withstand a high load.

In the case of this embodiment of the present invention, it is preferable that this stopper member is constituted by a bolt or the like, and that the stop position can be adjusted by screwing the stopper member.

Further, when the fixing device according to the present invention is operated, an adapter portion may be mounted on the fixing member via a disc spring so that the adapter portion reliably contacts the object to be fixed. preferable.

[0019]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show sectional views of an embodiment in which the present invention is applied to a fixing device such as a missile. FIG. 1 shows a state in which an object to be fixed (missile) is restrained by the fixing device, and FIG. The state in which the object to be fixed (missile) is released from the object to be fixed is shown.

In FIGS. 1 and 2, the object 1 is indicated by a two-dot chain line at the left end. The fixed object 1 is a mounting table 2
The fixing device according to the present invention fixes the object 1 to the mounting base 2.

The fixing device according to the present invention has a frame 4 fastened to the mounting base 2 by bolts 3. The frame 4 has a fixing member 5 and a crank member 6 of the fixing device on pivot pins 7a and 7b. It is supported so that it can swing.

The fixing member 5 of the embodiment shown in FIGS. 1 and 2
Is a hook-shaped fixing member 5 having a hook shape.
The base 5b is pivotally supported by a pivot pin 7a for supporting the fixing member 5, and an adapter 5c for holding the fixed object 1 at a tip 5a opposite to the base 5b.
Is installed. The adapter part 5c has a large number of disc springs 5
d, and a lid member 5e is screwed to the outside thereof. The adapter portion 5c is elastically supported by the fixed member 5 by a disc spring 5d. Are elastically in contact with the object 1.

A connecting pin 8a for attaching a link member is provided at an intermediate portion A between the root 5b and the tip 5a of the fixing member 5.

In the present embodiment, a bell member-shaped crank member 6 is swingably supported on a pivot pin 7b for mounting the crank member of the frame 4. In the crank member 6, a link connecting portion B and a hydraulic cylinder connecting portion 6a are formed before and after a pivot point C by a mounting pin 7b.

A link member 9 is connected between the link connecting portion A of the fixed member 5 and the link connecting portion B of the crank member 6 by connecting pins 8a and 8b. The hydraulic cylinder connecting portion 6a of the crank member 6 includes a hydraulic cylinder 1
The tip of the zero rod 10a is connected by a connecting pin 8c.

In the hydraulic cylinder 10 shown in this embodiment, when the supply hydraulic pressure is lost, the rod 10a is extended by the spring 10b as shown in FIG. 1, and when the hydraulic pressure is supplied, the rod 10a resists the spring 10b as shown in FIG. Rod 10
The hydraulic cylinder 10 of the type in which a retracts is used.
The cylinder body 10c of the hydraulic cylinder 10 is rotatably supported on the frame 4 by pins 7c.

In this embodiment having the above configuration,
When the hydraulic pressure is not supplied to the hydraulic cylinder 10, as shown in FIG. 1, the rod 10a of the hydraulic cylinder 10 is extended by a spring 10b, and the extension of the rod 10a causes the crank member 6 to move to the crank member pivot point C (pin). 7b)
Is rotated clockwise. With this rotation, the fixing member 5 is pushed counterclockwise around the pin 7a on which the fixing member 5 is pivotally connected by the link member 9 connected to the front end of the crank member 6, and the adapter portion at the front end of the fixing member 5 5c
Presses down and fixes the fixed object 1 in the state of FIG.

On the other hand, when the hydraulic pressure is applied to the hydraulic cylinder 10, the rod 10a of the hydraulic cylinder 10 retreats as shown in FIG. Rod 10 of hydraulic cylinder 10
a, the crank member 6 is pivoted to the pivot C (pin 7).
It is pivoted counterclockwise around b). In order to pull the fixing member 5 via the link member 9 by this rotation, the fixing member 5 rotates clockwise around the pivot point (pin 7a), and the adapter portion 5c at the tip of the fixing member 5 is fixed. The object 1 is released from the object 1 and is released.

The hydraulic cylinder 10 used in the present invention is shown in FIG.
As shown in (a), a piston 10d is connected to a piston rod 10a of a hydraulic cylinder 10, and a gap between the cylinder body 10c and the piston rod 10a (FIG. 4)
4 (b)), the piston may move rightward in FIG. 4 (a) by supplying hydraulic pressure, or more practically, as shown in FIG. 4 (c), A minute gap is provided between the piston rod 10a and the cylinder body 10c, and the supplied hydraulic pressure acts on the left end face of the piston 10d from this gap, thereby
d may be moved.

As described above, when the hydraulic pressure of the hydraulic cylinder 10 is released, the spring 10b rotates the crank member 6 around the pivot point C (pin 7b) (see FIG. 1). In this case, the rotation of the crank member 6 causes the link connection portion of the crank member 6 to move with respect to an imaginary line 1 connecting the pivot point C (pin 7 b) of the crank member 6 and the link connection portion A of the fixed member 5. B passes from below the imaginary line 1 to the bottom dead center located on the imaginary line 1, further slightly beyond the imaginary line 1, and the crank member 6 stops in the state shown in FIG. (That is, in FIG. 3B, ABC
The stopper member 1 which comes into contact with the crank member 6 so that the angle (hereinafter, referred to as a toggle angle) exceeds 180 °.
1 is provided. In this embodiment, a stopper member 11 composed of a bolt is screwed into the frame 4. In order to fix the contact position of the stopper member 11, a lock nut 11a is attached to the head of the stopper member 11.

With this configuration, as shown in FIG. 1, the adapter portion 5c of the fixed member 5 in the restrained state is provided.
In addition, when a force is applied from the fixed object 1 due to vibration or the like, the fixing member 5 rotates clockwise around the pivot point 7a, thereby applying a force to the connecting portion of the crank member 6, The crank member 6 comes into contact with the stopper member 11, and the crank member 6 does not further rotate clockwise about the pivot point C (pin 7b), so that the restrained state by the fixing member 5 is not loosened.

Further, in the present invention, in order to detect that the vehicle is in the restrained state shown in FIG. 1, a restraint detection switch 12a including a limit switch, a proximity switch, and the like is used.
Is attached to the frame 4 above the crank member 6.

In order to detect the release state shown in FIG. 2, a release switch 12b composed of a limit switch, a proximity switch and the like is connected to the frame 4 below the crank member 6.
Mounted on

The operation state of the fixing device is detected by detecting the position of the crank member 6 by the restriction detection switch 12a and the release detection switch 12b. The operator can reliably confirm that the vehicle is in the restrained state or the released state.

In the above-described embodiment, a bell-crank member is used as the crank member 6. The crank member 6 has a hydraulic cylinder 10 and a link member at two ends with respect to a pivot point C (7b). 9 is pin-connected. The crank member 6 of the present invention is not limited to a bell-crank member. For example, the pivot point C (7b) of the crank member 6 and the pin connection point B of the link member 9 are provided.
A connecting portion of the hydraulic cylinder 10 may be provided between the two. In such a case, when the hydraulic cylinder 10 is contracted and contracted, and is released when the hydraulic cylinder 10 is extended, the hydraulic cylinder 10 is reverse to the above-described embodiment, that is, the hydraulic cylinder 10 The spring 10b contracts when it receives no hydraulic pressure. As another method, the operating direction of the hydraulic cylinder 10 may be reversed.

[0036]

According to the present invention, the object to be fixed can be fixed by the action of the hydraulic cylinder, and the operation can be performed quickly without complicated bolt tightening work unlike the conventional bolt tightening method. The fixed inspection can be performed very easily, and labor costs can be greatly reduced.

Further, according to the present invention, an object to be fixed having a plurality of places to be fixed can be similarly fixed at a plurality of places without fail. Further, by detecting the fixed state or the released state by the switch, the inspection of the fixed state or the released state can be performed only by checking the switch, and the labor cost required for the fixing can be greatly reduced.

In the present invention, the fixed object is fixed by a spring using a hydraulic cylinder in which one direction movement of the rod is performed by a spring and the other direction movement of the rod is performed by hydraulic pressure. After fixing, the fixed state can be maintained without requiring any special power to maintain the state.

Further, in the present invention, since the disc spring is incorporated in the adapter portion at the distal end of the fixing member, the product of the adapter portion can be miniaturized, and the vibration can be absorbed, and the vibration and shock due to the backlash of the fixed object can be eliminated. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which an object to be fixed 1 of an embodiment in which the present invention is applied to a fixing device such as a missile is restrained.

FIG. 2 shows a state where the object is released from an object 1 in the embodiment of FIG.

FIG. 3A is a plan view of a main part of a fixing device of the present invention, and FIG. 3B is a diagram illustrating an operation principle of a stopper member of the present invention.

FIGS. 4A and 4C are cross-sectional views of one embodiment of a hydraulic cylinder used in the present invention, and FIG. 4B is a cross-sectional view of FIG.

FIG. 5 is an explanatory view of a conventional fixing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed object 2 Mounting stand 3 Bolt 4 Frame 5 Fixing member 5a Tip part 5b Root part 5c Adapter part 5d Disc spring 6 Crank member 6a Hydraulic cylinder coupling part 7a, 7b, 7c Pivot pin 8a, 8b, 8c Pivot pin 9 Link member 10 Hydraulic cylinder 10a Rod 10b Spring 10c Cylinder main body 10d Piston 11 Stopper member 11a Lock nut 12a Restriction detection switch 12b Release detection switch A Link connection part of fixed member B Link connection part of crank C Crank member pivot point

Claims (4)

[Claims] 1. A linking portion and a hydraulic cylinder connecting portion, wherein a fixing member having an adapter portion for abutting and fixing an object to be fixed at a tip end portion is swingably supported at a root portion opposite to the tip end portion. A crank member having a portion, which is swingably supported at a portion different from the link connecting portion and the hydraulic cylinder connecting portion, wherein a link connecting portion located between a tip portion and a root portion of the fixing member; The link connecting part of the member is connected with a pin by a link member, and the one-way movement of the rod is performed by a spring and the other direction movement of the rod is hydraulically supported. ,
A fixing device for an object to be fixed, wherein a rod of the hydraulic cylinder and a hydraulic cylinder connecting portion of the crank member are connected by a pin. 2. A link connecting part of the crank member connects the link connecting part of the fixing member and a swing center of the crank member when the adapter part of the fixing member comes into contact with the object to be fixed. 2. The fixed object according to claim 1, wherein a stopper member is provided so as to abut on the crank member and limit the swing of the crank member so as to be located above the imaginary line. Fixing device. 3. The device according to claim 2, wherein the stopper member is adjustable. 4. The fixing member according to claim 1, wherein an adapter portion is attached to the fixing member via a disc spring so that the adapter portion reliably contacts the object to be fixed.
Item 10. The fixing device for an object to be fixed according to Item 7.