JP3976204B2 - Wing lock device - Google Patents

Description

The present invention relates to a wing-type cargo truck having a wing that covers a cargo bed so as to be openable and closable from the top, and relates to a wing lock device that is attached to a cover to stably restrain the wing in a closed position.

As shown in FIG. 1, the wing-type cargo truck 100 includes a base 102 supported by a predetermined number of wheels 101, a turn 103 disposed on the left and right side portions and the rear side portion of the base 102, and each turn 10
3 and the gate-shaped member 104 erected at the front and rear end portions of the base 102 so as to sandwich 3 therebetween, and these portal-shaped members 10
4 is provided between the tops of the four. The gate-shaped member 104 is a pair of left and right support columns 1
05 and a beam member 106 between the tops of the columns 105, and the construction material 107 is connected in the front-rear direction between the central portions of the beam members 106.

A pair of left and right wings 108 includes a roof wing part 109 whose base end side is pivotally attached to the construction material 107 via a hinge 111, and a side wing part 110 connected at right angles to the distal end of the roof wing part 109. In the closed state, the front and rear end portions of the roof wing portion 109 are in contact with the front and rear beam members 106, while the front and rear end portions of the side wing portion 110 are in contact with the front and rear support columns 105, and the lower edge of the side wing portion 110 The portion comes into contact with the upper edge portion of the base 102 in the standing posture.

A predetermined number of locking tongues 112 project downward from the lower edge of the side wing 110, and a wing lock device 120 corresponding to the locking tongue 112 is attached to the upper edge of the turn 103. Yes. After the wing 108 is rotated to the closed position, the wing lock device 120 is operated to press the locking tongue 112 from the front side by the pressing member, thereby restraining the wing 108 to the closed position.

In the conventionally proposed wing lock device 120, a lever handle is pivotally supported by a horizontal shaft on a base fixed to a turn so that the lever handle can be rotated up and down. The lever is pivotally supported, the presser member and the lever handle are connected by a link mechanism, and the lever handle is rotated around the horizontal axis. There is a rotating type in which a tongue piece is sandwiched between a base and a pressing member (see the description of the prior art in Patent Document 1).

As another wing lock device, the lever handle is pivotally supported by the horizontal axis on the base fixed to the base so that the lever handle can rotate up and down, and the presser member can be rotated up and down by the horizontal shaft on the upper side of the lever handle. By pivoting and rotating the lever handle around the horizontal axis, the presser member is tilted around the horizontal axis so that the locking tongue is sandwiched between the base and the presser member. There is a rotating type (see Patent Document 2)
.

Further, as another wing lock device, a lever handle is pivotally supported by a horizontal shaft so as to be able to undulate and rotate on a base fixed to the base, and a presser member is pivotally supported on the base so as to be able to undulate and rotate. Along with the rotation, the pressing member receives an urging force from the lever handle and rotates in the direction opposite to the rotation direction of the lever handle to approach or separate from the wing, and the locking tongue piece is moved to the base. And a presser member (see Patent Document 3).

In the wing lock device described above, the presser member is a system that undulates and rotates around a horizontal axis, but a system in which the presser member slides in the vertical direction along the base has also been proposed.
In this type of wing lock device, one end of a rotary link is pivotally supported by a horizontal shaft on a base fixed to a turn so that it can be rotated up and down, and a lever handle is attached to the other end of the rotary link at a position spaced apart from the tip. And a guide member that guides the reciprocating motion of the presser member along the base. The guide member is connected to the tip of the lever handle by the horizontal shaft. In some cases, the lever handle is rotated in a downward direction so that the pressing member is slid upward and the locking tongue piece is sandwiched between the base and the pressing member (see Patent Document 4).

As another sliding type wing lock device, a lever handle is pivotally supported by a horizontal shaft on an upper portion of a base fixed to a turn so as to be able to undulate and rotate, and a pressing member is slid along the length of the lever handle. The lever handle is mounted on the lever handle, and the lever handle is tilted and rotated to move the presser member upward via the first bracing member and the second bracing member, and the locking tongue is attached to the base. There are some which are sandwiched between pressing members (see Patent Document 5).

Japanese Utility Model Publication No. 6-44730 Japanese Utility Model Publication No. 55-35258 Japanese Patent No. 3523029 JP-A-9-119410 JP 2003-72379 A

In the wing lock device of the type in which the presser member rotates as described above, the wing is opened and rotated when the presser member is in a retracted posture in which the presser member is erected and rotated at a fixed inclination angle with respect to the base. In reality, however, the rotation radius of the wing differs depending on the type of vehicle, so that when the base fixing position with respect to the turn is not properly selected, the presser member may retreat to a necessary and sufficient position. The locking tongue piece may collide and interfere with the presser member when the wing is opened and rotated.
When the fixing position of the base with respect to the turn is excessively lowered so as to avoid the problem of interference, the overlap dimension of the pressing member and the locking tongue piece is shortened, and the pressing member causes The pressure restraining effect of the locking tongue piece will be reduced.

Further, in the wing lock device of the type in which the presser member slides as described above, when the wing or the locking tongue piece is deformed and deformed due to some cause during use, the locking tongue is closed. The lower end of the piece may be arranged so as to be lifted from the normal position. When the presser member slides upward in such a lifted state, the presser member abuts the lower end of the locking tongue piece. I ca n’t go to the position,
It is impossible to restrain the locking tongue piece from being pressed by the pressing member.
There will be no.

The subject of the present invention is versatile enough to be applied to various wing-type cargo trucks having different wing radii without the necessity of strictly selecting the fixing position of the base with respect to the turn, and the wing and It is an object of the present invention to provide a wing lock device that can accurately press and restrain the locking tongue piece even when the locking tongue piece is distorted and deformed.

The main feature of the present invention is that the tongue piece receiving portion 2 for receiving the locking tongue piece 112 of the wing 108 is provided on the upper portion of the base 1, and the slider 4 that advances and retreats in the vertical direction with respect to the tongue piece receiving portion 2 is provided. A lever handle 5 fitted to and supported by the guide portion 3 of the base 1 and rotating up and down on the front side of the base 1 is pivotally supported by a first horizontal shaft 6 on the upper side of the slider 4 at the base end portion. 1 is supported by a second horizontal shaft 8 on the lower side of the slider 4 at the base end portion thereof, and the slider arm 4 is pivotally supported by the second horizontal shaft 8 at the base end portion. When the latch body 15 provided on the lever handle 5 is engaged with the base 1 side in the raised position where 4 is advanced toward the tongue receiving portion 2, the slider 4 is retracted to the lowered position. The While stopped, the in the raised position of the slider 4, wherein the lever handle 5 obliquely by standing rotation is raised rotating the presser arm 7 at an angle, the locking Tomeshitahen 112 by the tip of the presser arm 7 Is released, and the slider 4 is retreated to a lowered position away from the tongue piece receiving portion 2 in a state where the presser arm 7 is held in the restraint releasing posture.

In the wing lock device of the present invention, when the slider is in the raised position, the locking tongue piece is pressed and restrained between the distal end portion of the presser arm and the tongue piece receiving portion. In order to release the lever handle, the lever handle is tilted upright and the presser arm is tilted upright, and the slider is moved away from the tongue receiving portion while the presser arm is held in the restraint releasing posture. Since the wing is retreated to a lowered position and the wing is rotated to rotate after completion of the evacuation movement, the interference between the presser arm and the locking tongue when the wing is opened depends on the rotation radius of the wing. Even completely prevented.

Further, the wing is closed and rotated to bring the locking tongue into contact with the tongue receiving portion of the base, and then the lever handle is rotated upright to rotate the presser arm upright. To move the slider to the ascending position toward the tongue-piece receiving portion while maintaining this oblique upright rotation posture, and to rotate the lever arm by overturning and rotating the presser arm overlying after completion of the advancement movement Also, there is no interference between the presser arm and the locking tongue when the wing is closed.

As described above, in the wing lock device of the present invention, the lever handle and the presser arm are pivotally supported by the slider, and the slider is fitted and supported by the guide portion so as to be slidable in the vertical direction. Sometimes the slider slides downward while the presser arm is tilted upright, while the restraint is executed when the slider slides upward while the presser arm is tilted upright. The present invention can be applied without difficulty to various wing type cargo trucks having different wing radii without the necessity of strictly selecting the fixing position of the base with respect to rolling.

Further, the lever handle is tilted upright and the presser arm is tilted upright, and the slider is moved upward while maintaining the tilted upright rotation posture. Since the presser arm is fallen and rotated, and the locking tongue piece is pressed from the front side by the front end portion of the presser plate, even if the wing and the locking tongue piece are distorted and deformed, The pressing restraint of the locking tongue piece by the presser arm can always be performed accurately.

If each component such as the base, slider, lever handle, and presser arm is made of a metal material or engineering plastic, it becomes strong against mechanical hitting and distortion during use.

In the illustrated embodiment, the base 1 is formed by welding two metal plates, and the tongue piece receiving portion 2 with which the locking tongue piece 112 of the wing 108 abuts is formed on the front side of the upper end portion of the lower layer base plate 1a. Has been. A pair of left and right horizontal cross-section L-shaped guide portions 3 are formed by cutting and bending the upper base plate 1b. The U-shaped slider 4 in front view has left and right leg pieces 4a, 4b on the pair of guide parts 3, 3.
Are mated. The base end portion of the lever handle 5 is pivotally supported by the first horizontal shaft 6 on the upper side of the leg pieces 4 a and 4 b of the slider 4. The presser arm 7 is composed of a main member 7a contacting and separating from the locking tongue piece 112 and a back side member 7b welded to the back side, and the base end portion of the back side member 7b is connected to the lower side of the leg piece portions 4a and 4b. 2 are pivoted by a horizontal axis 8. Therefore, the lever handle 5 and the presser arm 7 are arranged so as to cross each other.

Window holes 9 are formed in a pair of left and right side walls of the back side member 7 b of the presser arm 7, and an interlocking shaft 10 is inserted through these window holes 9. The left and right end portions of the interlocking shaft 10 are fitted into the receiving holes 11 on the left and right side wall portions of the lever handle 5 and are prevented from being removed. By the interposition of the interlocking shaft 10, the presser arm 7 undulates and rotates in the opposite direction corresponding to the undulation rotation of the lever handle 5. That is, in FIG. 4, when the lever handle 5 stands up and rotates counterclockwise about the first horizontal axis 6 with respect to the slider 4, the presser arm 7 rotates clockwise with respect to the slider 4 about the second horizontal axis 8. Stands up in the direction of rotation. Further, when the lever handle 5 is rotated in the clockwise direction with respect to the slider 4 about the first horizontal axis 6, the presser arm 7 is rotated in the counterclockwise direction with respect to the slider 4 about the second horizontal axis 8. To do.

A coil portion 12 a of a torsion coil spring 12 is fitted to the horizontal pivot 8, one linear end portion 12 b of the torsion coil spring 12 abuts on the back surface of the interlocking shaft 10, and the other linear end portion 12 c is the slider 4. It is in contact with the back surface of the central connecting piece 4c, and serves as an urging means for maintaining the posture of the presser arm 7 and the lever handle 5 in a state where they are tilted upright.
Since the presser arm 7 is held in an obliquely upright and rotated position by the torsion coil spring 12 in the constraint release state in this way, the state can be visually confirmed from a distance, and the presser arm 7 itself is in the constraint release state. It becomes a suitable indicator.
A resin cover 13 that contacts and separates from the locking tongue piece 112 is fitted to the distal end portion of the main member 7 a of the presser arm 7.

A latch case 14 is welded to the rear surface of the lever handle 5 on the grip portion side, and a latch body 15 that slides in the length direction of the lever handle 5 is accommodated in the latch case 14.
The latch body 15 is slidably biased in a direction away from the first horizontal shaft 6 by a compression coil spring 16 inserted between the latch body 15 and the latch case 14. In the locked state where the first claw portion 17 and the second claw portion 18 of the latch body 15 are engaged with the first metal receiving portion 19 and the second metal receiving portion 20 on the base 1 side, respectively, the lower end portion of the latch body 15 Projecting into an opening 21 formed in the grip portion of the lever handle 5. The first and second receiving parts 19 and 20 are formed by cutting and bending the upper base plate 1b of the base 1 with a space in the vertical direction.

Slots 2 that are long in the vertical direction are formed on the side walls of the pair of left and right guide portions 3 and 3 projecting from the base 1.
2 and the left and right ends of the second horizontal shaft 8 of the lever presser arm 7 are the slots 22.
Is inserted and inserted, and is processed to prevent removal. The slider 4 slides in the vertical direction within the range of the slot 22. A display window 23 is formed on the front wall of the lever handle 5.
When the presser arm 7 is at the restraint execution position, the colored display portion 24 on the front portion of the latch body 15 appears in the display window 23 to display that the restraint execution state is in effect.

In the restraint execution state in which the distal end portion of the presser arm 7 presses the locking tongue piece of the wing 108 between the tongue piece receiving portion 2 of the base 1, the first claw portion 17 and the second claw portion of the latch body 15. Since the portion 18 is engaged with the first and second receiving portions 19 and 20 on the base 1 side, the lever handle 5
Is stably locked in the lying position, and there is no risk that the restraint by the presser arm 7 is accidentally released by the vibration shock while the wing type cargo truck is running.
When arriving at the destination and unloading the cargo, the operators of the truck drivers must use the latch body 1
5, the first claw part 17 and the second claw part 18 of the latch body 15 are separated from the first metal receiving part 19 and the second metal receiving part 20 on the base 1 side, and the lever for the base 1 is The lock of the handle 5 is released.

In FIG. 4, when the lever handle 5 is tilted up and rotated counterclockwise around the first horizontal axis 6, the presser arm 7 is pulled clockwise around the second horizontal axis 8 by being pulled by the interlocking shaft 10. The holding arm 7 is tilted upright and the distal end portion of the presser arm 7 is separated from the locking tongue piece 112, thereby releasing the pressing restraint of the locking tongue piece 112. This restraint releasing posture is the torsion coil spring 12.
It is held accurately by the biasing force. When the operator releases his / her hand from the lever handle 5, the lever handle 5 moves downward by its own weight, and the slider 4 automatically slides along the guide portion 3 from the raised position to the lowered position. This lowering operation can also be performed by the operator pulling down while holding the lever handle 5 by hand.

After the slider 4, the lever handle 5, and the presser arm 7 reach the predetermined lowered position, FIG.
When the lever handle 5 is rotated in the clockwise direction around the first horizontal axis 6, the presser arm 7 is rotated in the counterclockwise direction around the second horizontal axis 8 by being pushed by the interlocking shaft 10.
When the first claw portion 17 of the latch body 15 is engaged with the second metal receiving portion 20 on the base 1 side, the lever handle 5 is stably locked in the lying position.

Thus, in the restraint execution state , the lever handle 5 is locked to the base 1 and the presser arm 7 is also held in a lying state. Therefore, when the wing 108 is opened and closed, the lever handle 5 and the presser arm 7 are not obstructed. In addition, the operability when opening and closing the wing 108 is good.
Further, when the turn 103 hangs downward about the hinge shaft 113, the presser arm 7 and the lever handle 5 do not interfere with the base 102 and the wheel 101. When the lever handle 5 is locked to the base 1 side in the lowered position, the display portion 24 of the latch body 15 does not appear in the display window 23 of the lever handle 5.
The opening rotation of the wing 108 is performed after the slider 4 is lowered. However, as long as the slider 4 is lowered, it may be either before or after the lever handle 5 is rotated.

In this way, the slider 4 is in the lowered position far away from the tongue piece receiving portion 2 and the wing 108 is rotated and rotated while the presser arm 7 is largely retracted from the tongue piece receiving portion 2.
Interference between the arm 12 and the presser arm 7 is completely prevented regardless of the turning radius of the wing 108.

When the loading and unloading of the cargo is completed, the wing 108 is closed and rotated, and the locking tongue piece 112 is brought into contact with the tongue piece receiving portion 2 of the base 1. Thereafter, the latch body 15 is pushed up to release the locking of the lever handle 5 with respect to the base 1, and then the lever handle 5 is tilted up and rotated about the first horizontal shaft 6, and the presser arm 7 is pulled by the pulling action of the interlocking shaft 10. Is tilted upright about the second horizontal axis 8, and the slider 4 is slid upward along the guide portion 3 while maintaining this upright rotation posture. After the advance movement to the raised position is completed, the lever handle 5 is rotated around the first horizontal axis 6, and the presser arm 7 is rotated around the second horizontal axis 8 by the pressing action of the interlocking shaft 10. Press.

At the end of the overturning rotation of the lever handle 5, the first claw portion 17 and the second claw portion 1 of the latch body 15.
By engaging 8 with the first and second receiving parts 19 and 20 on the base 1 side, the lever handle 5 is locked to the base 1 and the slider 4 is firmly held in the raised position.
Further, in the wing lock device of the present invention, there are protrusions and members that interfere with the locking tongue 112 on both the left and right sides of the tongue receiving portion 2 of the base 1 and the left and right sides of the tip of the presser arm 7. Therefore, even if the positional relationship of the locking member 112 in the front-rear direction of the vehicle body is deviated due to the looseness in service, there is no difficulty in pressing and restraining the locking tongue 112.

It is a rear view of the wing type cargo truck to which the wing lock device of the present invention is applied. It is a front view of the wing lock device concerning one example of the present invention. FIG. 3 is a left side view of the wing lock device shown in FIG. 2. It is the sectional view on the AA line of FIG. FIG. 3 is a sectional view taken along line BB in FIG. 2. It is CC sectional view taken on the line of FIG. FIG. 3 is a front view of a base of the wing lock device of FIG. 2. It is the DD sectional view taken on the line of FIG. It is the EE sectional view taken on the line of FIG. It is a front view of the lever handle of the wing lock device of FIG. It is the FF sectional view taken on the line of FIG. It is the GG sectional view taken on the line of FIG. It is a top view of the lever handle of FIG. It is a front view of the latch body of the wing lock device of FIG. It is a top view of the latch body of FIG. It is the HH sectional view taken on the line of FIG. FIG. 3 is a front view of a presser arm of the wing lock device of FIG. 2. It is the II sectional view taken on the line of FIG. It is the JJ sectional view taken on the line of FIG. It is a front view of the slider of the wing lock apparatus of FIG. It is a bottom view of the slider of FIG. It is the KK sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 1a Lower layer base plate 1b Upper layer base plate 2 Tongue piece receiving part 3 Guide part 4 Slider 4a Slider leg piece part 4b Slider leg piece part 4c Slider center connection piece part 5 Lever handle 6 First horizontal shaft 7 Presser arm 7a Main member 7b of the presser arm Back side member 8 of the presser arm Second horizontal shaft 1a Lower layer base plate 1b Upper layer base plate 9 Window hole 10 on the rear member side Interlocking shaft 11 Receiving hole 12 on the lever handle side Torsion coil spring 12a Coil portion 12b Linear End portion 12c Linear end portion 13 Resin cover 14 Latch case 15 Latch body 16 Compression coil spring 17 First claw portion 18 on the latch body side Second claw portion 19 on the latch body side First receiving portion 20 on the base side Second receiving portion on the base side Metal part 21 Lever handle grip part 22 Guide part slot 23 Lever handle side display window 24 Latch body Display part 25 Lever handle clearance groove 100 Wing type cargo truck 101 Wheel 102 Base 103 Edge 104 Gate member 105 Post 106 Beam member 107 Construction material 108 Wing 109 Roof wing part 110 Side wing part 111 Hinge 112 Locking tongue Piece 113 hinge shaft 120 wing lock device

Claims (1)

A tongue piece receiving portion 2 for receiving the locking tongue piece 112 of the wing 108 is provided on the upper portion of the base 1, and a slider 4 that moves forward and backward with respect to the tongue piece receiving portion 2 is provided on the guide portion 3 of the base 1. The lever handle 5 that is fitted and supported and rotates up and down on the front side of the base 1 is pivotally supported by the first horizontal shaft 6 on the upper side of the slider 4 at the base end, and is rotated up and down on the front side of the base 1. Then, the presser arm 7 whose distal end is in contact with and separated from the tongue receiving part 2 is pivotally supported by the second horizontal shaft 8 on the lower side of the slider 4 at the base end, and the slider 4 is supported by the tongue receiving part. in raised position advanced toward the 2, by engaging the latch member 15 provided in the lever handle 5 on the base 1 side, while preventing movement of the lowered position of the slider 4, the slider In the raised position of 4, the lever handle 5 the presser arm 7 is raised rotated obliquely is raised rotated diagonally, to release the restraint of the engagement Tomeshitahen 112 by the tip of the presser arm 7, A wing lock device in which the slider 4 is retracted to a lowered position away from the tongue piece receiving portion 2 while the presser arm 7 is held in the restraint releasing posture.

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