JP3013634B2 - Tilt opening / closing auxiliary device with fixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt with a fixing device which can reduce the amount of deflection of a side tilt of a loading bed such as a truck when a lateral load is applied, and at the same time, can easily open and close the side tilt by human power. The present invention relates to an opening and closing assist device.

[0002]

2. Description of the Related Art As shown in FIG. 19, for a large truck or trailer, the length of a bed of a truck or the like 1 is 9 m or more, and accordingly, the side tilt 2 becomes heavy, and it is difficult to open and close it manually. Therefore, the tilt opening / closing auxiliary device 3 is mounted to facilitate opening / closing. Further, since the side tilt 2 is long, the central portion thereof is largely bent when subjected to a lateral load, so that there is a drawback that the load is scattered or the load collapses. Conventionally, in order to solve this drawback, the side tilt is divided into two or more in the longitudinal direction, and an intermediate column firmly attached to the carrier is provided in the middle thereof, and the divided side tilt is fixed to the intermediate column to bend. There are ways to prevent this. However, this method has a disadvantage that the opening and closing method of the intermediate pillar is troublesome, and each side divided is heavy, and in order to open and close manually, some opening and closing auxiliary means is required for each, and the cost is eventually increased. Could not escape.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional side tilt of a truck or the like, eliminates large deflection of the side tilt, and enables the side tilt to be opened and closed lightly by hand. Moreover, it is an object of the present invention to provide an inexpensive tilting opening / closing auxiliary device with a fixing device such as a truck.

[0004]

SUMMARY OF THE INVENTION The present invention provides a first aspect.
The above object is achieved by providing the tilting opening / closing auxiliary device with a fixing device as follows. Truck or trailer (hereinafter simply "truck, etc.")
Open / close assist coil spring elastically mounted between a surface provided on the vehicle body and a spring seat, a shaft having one end attached to the spring seat, and a loading platform such as a truck. A stopper pivotally attached to an outer surface of a tilt fixing member provided at an intermediate portion of the side tilt through a hinge to hold the tilt fixing member in an upright state, and the other end of the stopper and the other end of the shaft And a link device for transmitting the movement of the stopper to the shaft, wherein the stopper is removably fixedly engaged with the vehicle body in an upright state. And a tilt-fixing operation mechanism operatively connected to the tilt-linking member and operated to engage and disengage the stopper with respect to the vehicle body. The side is on the body And a lower joint is pivotally connected to the other end via a pin, and a handle on which a grip is extended to one end and one end is attached to the lower joint. A connecting rod having an upper joint attached to the other end thereof, and a swinging end pivotally connected to the upper joint via a pin at one end, and pivotally attached to a stationary member with respect to the vehicle body via the pin at a substantially central portion. Arm and
A spring mounted between the lower surface of the upper joint and the vehicle body, and a stroke adjustment device that can be adjusted to limit rotation of the handle; The stopper is attached to the end, and is formed so as to swing with the operation of the tilt fixing operation mechanism to engage with the tilt fixing member or the stopper, and the stopper is releasably fixed to the vehicle body in an upright state. A hook or an engaging portion, wherein the link device is
The stopper extends downward in the width direction of the stopper, one end of the stopper is pivotally connected to the other end of the stopper via a pin, and the other end is pivotally connected to the vehicle body via a pin. A rotating arm rotatable in a state where the stopper is disengaged from the vehicle body, one end pivotally connected to an intermediate portion of the rotating arm, and the other end pivotally connected to the shaft. A tilting opening / closing auxiliary device with a fixing device, comprising: a rod.

The above-mentioned tilt-fixing member is a plate-like reinforcing member attached to the outer surface of the side tilt which is integrated with the tilt-fixing member, and is provided at an intermediate portion of the side tilt which is separated into a front portion and a rear portion. In some cases, it is an intermediate pillar having front and rear side tilts attached to both ends thereof.

The link device includes a pivot arm having one end pivotally connected to the other end of the stopper via a pin and the other end pivotally connected to a vehicle body such as a truck via a pin.
A rod having one end pivotally connected to a substantially central portion of the pivot arm via a pin, and a rod pivotally connected to the vehicle body such as the truck via a pin at a first pivot point; in via a pin pivotally mounted to the other end of the rod, it can be used such as those comprising a lever and you are pivotally attached to the other end of the shaft in a third pivot point.

[0007] fixing the tilt relative to the vehicle body such as a truck will depend to detachably coupled by tilting coupling member between the tilt fixing member and the vehicle body, the hook and the engaging portion, the hook and the sliding member, the gap and the sliding member Combinations and the like can be used conveniently. The tilt fixing operation mechanism that transmits the manual tilt fixing operation to these tilt connecting members is
A handle for manual operation, using a swing arm which transmits the motion to the tilt fixing member, has become a connecting member for connecting the handle and the rocking arm, a kind of embodiment to be described later, respectively be able to.

[0008] With this configuration, during traveling of the truck or the like, the tilting fixing member is firmly fixed to the vehicle body such as the truck by the coupling action with the tilting coupling member.
The side tilt supported by this does not bend significantly even if it receives a lateral load, and at the time of cargo handling, the above-mentioned connection is released by operating the tilt fixing operation mechanism, and the side tilt can be opened and closed. However, at this time, since the spring force of the opening / closing assisting coil spring acts on the stopper, the side tilt can be lightly opened / closed manually.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 (front view), 2 (side view), 3
FIG. 4 is a plan view of a main part, and FIG. 4 is a side view of the main part, showing a first embodiment of a tilt opening / closing auxiliary device with a fixing device according to the present invention. In FIGS. 1 to 4, the side tilt of the truck 1 is divided into two parts in the front and rear at a substantially central portion thereof.
A tilt fixing member (an intermediate column 4 in this example) is provided between the front tilt 2a and the rear tilt 2b. Front and rear side tilts 2 on both sides of the intermediate pillar 4
a and 2b are fixed. The side tilts 2a and 2b are attached by hinges 5 (see FIG. 2) so as to be rotatable around their axes. A bracket body 7 is fixed to a vehicle body such as a truck via a gusset 6. A pedestal 8 is attached to a lower portion of the intermediate pillar 4, and a hinge 9 is attached to the pedestal 8.
As a result, one end of the stopper 10 is rotatably mounted around the hinge 9 . The other end of the stopper 10 and the rotating arm 12 via the pin 11 is pivotally mounted, the other end of the pivot arm 12 is pivotally attached to the bracket body 7 via a pin 13. One end of a rod 15 is pivotally connected to a substantially central portion of the rotating arm 12 via a pin 14.
In the case of this example, the rotating arm 12, the rod 15, and the lever 16 described below form a link device that transmits the movement of the stopper to the opening / closing assisting coil spring via the shaft 19 described below.

A lever 16 having three pivot points is pivotally connected to the bracket body 7 via a pin 17 at a first pivot point and to a rod 18 via a pin 18 at a second pivot point. 1
The other end of 5 is pivotally connected. One end of the shaft 19 has a nut 2
0, washer 21 and lock nut 22
A coil spring 24 for opening and closing assistance is elastically mounted between the spring seat 23 and one surface of the bracket body 7. A spring cover 25 is mounted outside the opening / closing assist coil spring 24. The other end of the shaft 19 is pivotally connected to a third pivot point of the lever 13 via a pin 26. When the side tilts 2a, 2b are opened, the intermediate column 4 hangs downward in FIG. 2 accordingly, and the rotating arm 12 rotates counterclockwise in FIG. 2 around the pin 13 as shown by a two-dot chain line. Reach the right position. The lever 16 rotates counterclockwise in FIG. 2 around the pin 17 through the rod 15, the shaft 19 moves leftward in FIG. 2, the opening and closing assist coil spring 24 is compressed, and its spring force is reduced. Axis 1
9, the lever 16 and the rod 15 act as a force for returning the intermediate column 4 to the original position through a link device. Therefore, by appropriately selecting the coil spring 24 , the force can be reduced.
4. The force of the side tilts 2a, 2b due to its own weight can be balanced, and the side tilts 2a, 2b can be easily opened and closed manually.

In this embodiment, a fixing device having the following configuration is provided. That is, one end of the handle 27 is pivotally attached to the bracket body 7 via the pin 13. An end of one spring receiver 29a of a spring mechanism 29 is pivotally connected to the other end via a pin 28, and a grip 27a is extended from one end of the handle 27.
One of the spring supports 29a has an end portion, a tubular portion extending therefrom, and a receiving plate fixed inside the tube. The other spring receiver 29b of the spring mechanism 29 is composed of an end, a shaft, and a receiving plate. The receiving plate is slidably housed in the cylinder of the one spring receiving 29a. Has a spring 2
9c is mounted. The swing arm 30 is pivotally attached to the bracket body 7 via a pin 31 at a substantially central portion thereof,
At one end thereof, the other spring support 29 is connected via a pin 32.
It is pivotally attached to the end of b. The other end has a long hole 30
a is formed (FIGS. 3 and 4). Also, fixed tilt
In the operating mechanism, the handle 27 is connected to the stopper 10 and
Stopper 10 and the
It is arranged on the side of the link device. And handle 2
The swing arm 30 that swings in response to the rotation of the
It is located within the width direction of the par 10, and is connected to the other end of the handle 27.
It is drivingly connected between the long hole 30a. In addition, a pin
The stopper 10 and the front
From the side of the link device to the center of the stopper 10 in the width direction.
Extending between the handle 27 and the sliding member 33.
A connecting portion for dynamic connection is provided.

A pin 34 is provided on the engaging portion 33a of the sliding member 33.
And the pin 34 is provided in the elongated hole of the swing arm 30 .
By being inserted through 30a , the swing arm 30 and the sliding member 33 are engaged with each other so as to be rotatable and slidable. The sliding member 33 can slide vertically along the vertical surface provided on the vehicle body. A total of four hooks 35 are mounted on the inner surface of the stopper 10, two at each of the central portion and the lower portion. When the sliding member slides downward, the sliding member 33 and the hook 35 are separated from each other. When engaged and slid upward, the engagement is released. A projection 33b is provided below the sliding member 33, and the projection 33b
A spring 36 is elastically mounted between the body and the vehicle body, and urges the sliding member upward when the sliding member is at the upper position and downward when the sliding member is at the lower position. In the above description, the handle 27, the spring mechanism 29, the swing arm 30 and the like form a fixed operation mechanism having a handle and a spring device, and the sliding member 33 corresponds to the tilt coupling member.

When a truck or the like is running, the hook 35 and the sliding member 33 are engaged, and the stopper 1
0, the intermediate column 4, the side tilts 2a, 2b, etc. are firmly fixed to the vehicle body in an upright state . When loading a truck or the like, if the handle 27 is pulled forward (to the left in FIG. 2), the swing arm 30 rotates clockwise in FIG. 2 around the pin 31 and the sliding member 33 slides upward. The engagement between the sliding member 33 and the hook 35 is released, and the side tilt can be opened and closed. If the handle 27 is pushed to the other side (to the right in FIG. 2) when the vehicle is moved after the cargo is unloaded, the hook 35 and the sliding member 33 are firmly engaged again.

FIG. 5 (front view), FIG. 6 (side view), FIG.
(Plan view of main part) shows a second embodiment of the present invention. 6 and 7, the relationship between the side tilt 2, the intermediate column 4, the stopper 10, and the like, the link mechanism for transmitting the spring force of the opening / closing auxiliary coil spring 24 to the intermediate column 4, and the like are the same as those in the first embodiment. The description is omitted because it is the same.
Also in this example, one end of a handle 27 is pivotally attached to the bracket body 7 via the pin 13, and a grip portion 27 a is extended from one end of the handle 27. One end of a connecting rod 41 is pivotally connected to the other end of the handle 27 via a pin 28.
The other end of the connecting rod 41 is pivotally connected to one end of the swing arm 30 via a pin 32. The swing arm 30 is pivotally attached to the bracket body 7 via a pin 31 at a substantially central portion.
A groove 30b is formed at the other end, and a pin 43 attached to the engaging portion 42a of the sliding member 42 is engaged with the groove 30b . The sliding member 42 slides up and down along the vertical plane of the vehicle body, and a gap 4a provided in the intermediate pillar 4 is provided.
Mates with A sliding member 4 is provided between the vehicle body and the sliding member 42.
A spring 44 for urging the spring 2 upward is elastically mounted. Also,
In the tilt fixing operation mechanism, the handle 27 is
Stopper so as not to interfere with par 10 and link device
10 and a side of the link device. And
A swing arm 30 that swings in response to the rotation of the handle 27
Is located in the width direction of the stopper 10 and the handle 2
7 is drivingly connected between the other end of the sliding member 7 and the sliding member 42.
Further, a stop is provided between the connecting rod 41 and the swing arm 30.
The width of the stopper 10 from the side of the path over 10 and link devices
Handle 27 and a sliding member
There is provided a connecting portion for drivingly connecting between 42.

In the case of this example, when a truck or the like travels, the sliding member 42 and the gap 4a of the intermediate column 4 are fitted, and the side tilts 2a and 2b are firmly fixed to the vehicle body in an upright state. . At the time of cargo handling, the sliding member 4 is pushed by the swing arm 30 by pushing the handle 27 away.
2 and the gap 4a are released, and the side tilts 2a, 2b
Can be opened and closed.

FIG. 8 (a front view), FIG. 9 (a sectional view taken along the line AA in FIG. 8), and FIG. 10 (a diagram showing how to use) show a third embodiment of the present invention. For the case of this example to hold the sliding member 42 upward, the second embodiment the fitting hole 42c in the slide member 42 in place of the spring 44, the intermediate column 4 the fitting hole 42c Is provided with a stopper shaft 4c that fits into the stopper shaft. That is, in FIG. 8 to FIG.
2, a pillar 42b is provided upright, and a fitting hole 42c is formed in the pillar 42b . The intermediate column 4 is provided with a boss 4b and a partition plate 4d, and a stopper shaft 4c is rotatably and slidably fitted in a hole formed in the boss 4b. During running of the truck or the like and the upper end of the sliding member 42 come up to the top of the gap 4a, inserted into the fitting hole 42c causing the stopper shaft 4c as shown in FIG. 10 in this state, based on a stopper shaft 4c Defeat like this. Since the partition plate 4d is provided, the stopper shaft 4c can be prevented from coming off. The other parts of the third embodiment are the same as those of the second embodiment, and the description is omitted.

FIG. 11 (front view), FIG. 12 (side view), FIG. 13 (top view of main part), and FIG. 14 (side view of main part) show a fourth embodiment of the present invention. is there. Also in the case of this example, the interrelationship between the side tilt 2, the intermediate column 4, the stopper 10, etc., the link mechanism for transmitting the spring force of the opening / closing assist coil spring 24 to the intermediate column 4, and the like are the first to third embodiments described above. Therefore, the description is omitted. In this embodiment, one end of the handle 27 is pivotally connected to the bracket body 7 via the pin 13 similarly to the above-described embodiments, and the grip 27 is attached to one end of the handle 27.
a is extended. The other end of the handle 27 has a pin 28
The end portion of the lower joint 51 is pivotally connected via. A connection rod 52 is attached to the lower joint 51, and an upper joint 53 is attached to the connection rod 52 .

A swing arm bracket 54 is mounted on one surface of the bracket body 7, and the swing arm 30
Is pivotally connected to the swing arm bracket 54 via the pin 31 at a substantially central portion thereof, one end of which is pivotally connected to the end of the upper joint 53 via the pin 32, and the other end is engaged. A portion 55 is formed. A coil spring 56 is elastically mounted between the one surface of the bracket body 7 and the lower surface of the upper joint 53. A hook 57 that engages with an engaging portion 55 formed at the other end of the swing arm 30 is attached to the inner surface of the stopper 10 (see FIG. 13). In the tilting operation mechanism, the handle 2
7 does not interfere with the stopper 10 and the link device.
The stopper 10 and the side of the link device.
I have. Then, it swings in response to the rotation of the handle 27.
The swing arm 30 also extends in the width direction of the stopper 10.
Between the other end of the handle 27 and the sliding member 42.
Is tied. Further, the connecting rod 52 and the swing arm 3
Between 0, from the side of the stopper 10 and the link device
Extending toward the center of the stopper 10 in the width direction,
A connecting portion for drivingly connecting the dollar 27 and the swing arm 30 is provided.
Have been killed.

Above the handle 27, a stroke adjusting device 58 is provided. FIG. 14 is a diagram showing details of the stroke adjusting device 58 . In the figure, a nut 58b is fixed to the bracket body 7 by a bracket 58a, and a bolt 58c is screwed to the nut 58b . A contact portion 58d is provided at the tip of the bolt 58c. When the bolt 58c is rotated, the contact portion 58d moves up and down to contact the upper surface of the handle 27. When the side tilts 2a and 2b are closed, the hook 57 and the engagement portion 55 are firmly engaged,
As a result, the stopper 10 is fixed to a vehicle body such as a truck, and a large deflection due to a lateral load on the side tilts 2a and 2b can be prevented.

When the side tilts 2a and 2b are opened, first, the grip portion 27a of the handle is pulled forward (to the left in FIG. 1), and the swing arm 30 is turned against the clock of FIG. The hook 57 and the engaging portion 55 are disengaged from each other, and the side tilts 2a and 2b can be opened. When the grip portion 27a is released after the engagement is released, the swing arm 30 rotates counterclockwise in FIG. 12 by the force of the coil spring 56. However, by appropriately adjusting the stroke adjusting device 58, the swing arm 30 is rotated counterclockwise. Stops halfway. Next, when the opened side tilts 2a and 2b are closed, the hook 57 pushes up the engaging portion 55 of the swing arm 30 against the force of the coil spring 56, and the hooks 57 are moved to a position where the side tilts 2a and 2b are completely closed. The hook 57 and the engaging portion 55 are engaged again.

FIG. 15 is a view showing a fifth embodiment of the present invention. In the figure, the side tilt 2 of the truck 1 and the like is not divided into front and rear portions, and is integral with each other, unlike the above-described examples in the case of this example. However, a plate-like reinforcing member 61 is attached to the side tilt 2 at a substantially central portion thereof, and this member 61 plays a role of a tilt fixing member instead of the intermediate pillar in each of the above-described examples. The stopper 10 is attached to the reinforcing member 61 via the pedestal 8 and the hinge 9 as in the above-described example. The link mechanism for transmitting the spring force of the opening / closing assisting coil spring 24 to the intermediate column 4 and the like are the same as in the first to fourth embodiments described above, and a description thereof will be omitted. Also, the handle 27, the lower joint 51, the connecting rod 52, the upper joint 53, the swing arm bracket 5
4. The structures of the swing arm 30, the engaging portion 55, the coil spring 56, the hook 57, the stroke adjusting device 58, and the like and their interrelationships are completely the same as those of the fourth embodiment, and therefore the description thereof is omitted.

FIG. 16 is a diagram showing a sixth embodiment of the present invention. Fixed in the first to fifth embodiments previously described, two in the divided side tilt 2a, 2b is primarily divided into approximately the same length, the two side tilt 2a, 2b in the middle column 4 However, in this example, the lengths of the front and rear side tilts 2a and 2b are different,
One is short, and the other is long (in FIG. 16, the front side tilt 2a is short and the rear side tilt 2b is long, but the opposite is also possible). The tilts 2 a and 2 b on both sides are detachably attached to the intermediate column 4 by a latch 71. In the case of this example, while the latch 71 of the shorter side tilt 2a is hung, the intermediate pillar 4,
It can be opened and closed together with the long side tilt 2b, but it can also be opened and closed independently by removing the latch 71 in some cases. In this case, since the side tilt 2a is short and light, it can be easily opened and closed manually. In this way, in the case of handling small articles, the cargo can be handled by opening and closing only the short side tilt 2a, so that there is no need to pay attention to collapse of other parts and the like, which is convenient. .

FIG. 17 and FIG.
a, and the sixth embodiment of the method of fixing 2b and the intermediate pillar 4 illustrates another example. That is, in both figures, the intermediate pillar 4 and the side tilts 2a and 2b are attached detachably with the shrimp type handle 72 (FIG. 17) or non-detachable with studs (or bolts) 73 (FIG. 18).

Although the six embodiments have been described above, the tilting fixing member, which is the main point of the structure of the present invention, is an intermediate column in the first to fourth embodiments, and is a plate in the fifth embodiment. It is a reinforcement member of a shape. That is, two cases are described. Also , through the tilt coupling member
In the first embodiment, the connecting method between the vehicle body and the tilt fixing member is a combination of a sliding member and a hook.
In the third and third embodiments, the combination of the sliding member and the gap is used. In the fourth and fifth embodiments, the combination is a combination of the hook and the engaging portion. That is, it describes three cases. Also, the connection between the vehicle body and the tilt
Therefore, in the first, fourth and fifth embodiments, the sliding member (foot
C) is interposed between the vehicle body and the stopper.
In the third embodiment, the sliding member (hook) is fixed to the vehicle body by tilting.
It is interposed between the fixed members. Although further secured operating mechanism tilt is also used to handle and swing arm either embodiment, the first embodiment, the second and third embodiments, an embodiment of the fourth and fifth different from each It is a mechanism. That is, it describes three cases. Almost any combination is possible in each of these described cases, and the invention can be effectively practiced for a very large number of combinations.

In the embodiment described above, the stopper 10 and the shaft 19 are connected to each other, and as the link device for transmitting the movement of the stopper to the shaft, the rotating arm 12 and the rod 1 are used.
5 and the lever 16, but the link device directly connected the rotating arm and the shaft to omit the lever, or directly connected the lever and the stopper to omit the rotating arm. The present invention can be effectively implemented in any of these cases.

[0026]

The present invention makes it possible to easily open and close the side tilt by human power by supporting the moment around the hinge due to the weight of the side tilt by the opening and closing assisting coil spring, and to close the side tilt. In some cases, the following excellent effects can be obtained by connecting and fixing a member attached to the vehicle body to the reinforcing member, the intermediate column, or a stopper attached thereto. The deflection caused by the lateral load on the side tilt of an extremely long carrier such as a truck or a trailer can be suppressed to a small extent. It is possible to prevent luggage from spilling and collapsing. The side tilt can be easily opened and closed by human power. The above effects can be realized at extremely low cost.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a side view showing the first embodiment of the present invention.

FIG. 3 is a plan view showing a main part of the first embodiment of the present invention.

FIG. 4 is a side view of a main part of the first embodiment of the present invention.

FIG. 5 is a front view showing a second embodiment of the present invention.

FIG. 6 is a side view showing a second embodiment of the present invention.

FIG. 7 is a plan view of a main part of a second embodiment of the present invention.

FIG. 8 is a front view showing a third embodiment of the present invention.

FIG. 9 is a view of the AA cross section in FIG. 8 as viewed in the direction of the arrow.

FIG. 10 is a perspective view showing how to use a stopper shaft.

FIG. 11 is a front view showing a fourth embodiment of the present invention.

FIG. 12 is a side view showing a fourth embodiment of the present invention.

FIG. 13 is a plan view of a main part of a fourth embodiment of the present invention.

FIG. 14 is a side view of a main part of a fourth embodiment of the present invention.

FIG. 15 is a diagram showing a fifth embodiment of the present invention.

FIG. 16 is a diagram showing a sixth embodiment of the present invention.

FIG. 17 is a diagram showing a method of fixing the side tilt and the intermediate pillar.

FIG. 18 is a view showing a method of fixing the side tilt and the intermediate column.

FIG. 19 is a view showing a side tilt of a truck or the like.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Track etc. 2 Side tilt 2a Front side tilt 2b Rear side tilt 3 Tilt opening / closing auxiliary device
Reference Signs List 4 Intermediate pillar 4a Air gap 4b Boss 4c Stopper shaft 4d Partition plate 5 Hinge 6 Gusset 7 Bracket body 8 Pedestal 9 Hinge 10 Stopper 11 Pin
12 Rotating arm 13 Pin 14 Pin 15 Rod
16 Lever 17 pin 18 pin 19 axis 20
Nut 21 Washer 22 Lock nut 23
Spring seat 24 Opening / closing assistance coil spring 25 Spring cover
26 pin 27 handle 27a grip portion 28 pin 29 spring mechanism 29a spring receiver 29b spring receiver 29c spring 30 swing arm 30a elongated hole 30b groove 31 pin 32 pin 33 sliding member
33a engaging portion 33b projection 34 pin 35 hook
36 spring 41 connecting rod 42 sliding member 42a engaging part 42b pillar 42c fitting hole 43 pin 44 spring 51 lower joint 52 connecting rod 5
3 top joint 54 swing arm bracket 55 engaging portion
56 Coil spring 57 Hook 58 Stroke adjusting device 5
8a Bracket 58b Nut 58c Bolt 58d Contact part 61 Reinforcement member 71 Latch 72 Shrimp type handle 73 Tack

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B62D 33/02-33/037

Claims (3)

(57) [Claims] An opening / closing assisting coil spring elastically mounted between a spring seat and a surface provided on a vehicle body of a truck or a trailer (hereinafter, simply referred to as a "truck or the like"), and one end of the coil spring. A shaft attached to the seat, and one end pivotally attached to an outer surface of a tilt fixing member installed at an intermediate portion of a tilt of the side of a loading platform such as a truck via a hinge,
A stopper for holding the tilt fixing member in an upright state, mounted between the other end of the stopper and the other end of the shaft,
A link device for transmitting the movement of the stopper to the shaft; and a tilting opening / closing auxiliary device comprising: a tilting coupling member that releasably fixedly engages with the vehicle body in an upright state; A tilt fixing operation mechanism operatively connected to the tilt coupling member and operated to disengage the stopper with respect to the vehicle body, wherein the tilt fixing operation mechanism has a pin on the other end side with respect to the vehicle body. A handle with a lower joint pivotally attached to the other end via a pin, a handle extending at one end, and one end attached to the lower joint, A connecting rod having an upper joint attached to an end thereof; a swinging end having one end pivotally attached to the upper joint via a pin, and a pivotally attached to a stationary member with respect to the vehicle body via a pin at a substantially central portion. An arm; a spring elastically mounted between the lower surface of the upper joint and the vehicle body; and a stroke adjusting device adjustable to limit rotation of the handle; It is attached to the other end of the arm and is formed so as to swing with the operation of the tilt fixing operation mechanism to engage with the tilt fixing member or the stopper, and the stopper can be released from the vehicle body in an upright state. The link device extends downward in the width direction of the stopper, one end of which is pivotally connected to the other end of the stopper via a pin, and the other end thereof. A pivot arm that is pivotally attached to the vehicle body via a pin and is rotatable in a state where the stopper is disengaged from the vehicle body by operating the handle; Is pivotally mounted to an intermediate portion of the pivot arm, the other end pivoted rods and, further comprising a locking device with tilt opening assisting device, wherein with respect to said axis. 2. An opening / closing assisting coil spring elastically mounted between a spring seat and a surface provided on a vehicle body of a truck or a trailer (hereinafter, simply referred to as "truck or the like"). A shaft attached to the seat, and one end pivotally attached to an outer surface of a tilt fixing member installed at an intermediate portion of a tilt of the side of a loading platform such as a truck via a hinge,
A stopper for holding the tilt fixing member in an upright state, mounted between the other end of the stopper and the other end of the shaft,
A link device for transmitting the movement of the stopper to the shaft; and a tilting opening / closing auxiliary device comprising: a tilting coupling member that releasably fixedly engages with the vehicle body in an upright state; A tilt fixing operation mechanism operatively connected to the tilt coupling member and operated to disengage the stopper with respect to the vehicle body, wherein the tilt fixing operation mechanism has a pin on the other end side with respect to the vehicle body. The other end of one end of one spring support of a spring mechanism consisting of two spring supports capable of relative movement with each other and a spring resiliently mounted between the two spring supports. A handle having a grip portion extending on one end side, and one end pivotally connected to the end of another spring receiver of the spring mechanism, and pivotally connected to the vehicle body at a substantially central portion. A swing arm with a pin or slot at the end, The tilt coupling member has a long hole or pin at one end thereof rotatably and slidably engaged with a pin or long hole provided at the other end of the swing arm, and the other end of the vehicle body has Is formed so as to slidably contact with the vertical surface of the vehicle and to engage with the tilt fixing member or the stopper with the operation of the tilt fixing operation mechanism, and the stopper can be released from the vehicle body in an upright state. A sliding member fixedly engaged with the spring, and a spring for urging the sliding member so as to be held at a lower position in the lower position and an upper position in the upper position. The stopper extends downward in the width direction of the stopper, one end of the stopper is pivotally connected to the other end of the stopper via a pin, and the other end is pivotally connected to the vehicle body via a pin. , The stopper A rotating arm rotatable in a state in which the engagement with the vehicle body is released, and a rod having one end pivotally connected to an intermediate portion of the rotation arm and the other end pivotally connected to the shaft. A tilt opening / closing auxiliary device with a fixing device, comprising: 3. An opening / closing assisting coil spring elastically mounted between a spring seat and a surface provided on a vehicle body of a truck or a trailer (hereinafter simply referred to as "truck or the like"). A shaft attached to the seat, and one end pivotally attached to an outer surface of a tilt fixing member installed at an intermediate portion of a tilt of the side of a loading platform such as a truck via a hinge,
A stopper for holding the tilt fixing member in an upright state, mounted between the other end of the stopper and the other end of the shaft,
A link device for transmitting the movement of the stopper to the shaft; and a tilting opening / closing auxiliary device comprising: a tilting coupling member that releasably fixedly engages with the vehicle body in an upright state; A tilt fixing operation mechanism operatively connected to the tilt coupling member and operated to disengage the stopper with respect to the vehicle body; and the tilt fixing operation mechanism is provided with the stopper so as not to interfere with the stopper. Arranged on the side, one end pivotally connected to the vehicle body via a pin,
A handle having the other end pivotally connected to one end of the connecting rod, and a grip portion extending from the one end; a connecting rod having one end pivotally connected to the other end of the handle; and one end connected to the other end of the connecting rod. A pivot arm pivotally attached to the vehicle body at a substantially central portion and provided with a pin or a long hole at the other end thereof, wherein the handle can be arranged at a side of the stopper and the link device. The tilt coupling member has an elongated hole or pin at one end thereof rotatably and slidably engaged with a pin or elongated hole provided at the other end of the swing arm, and the other end thereof is It is formed so as to slidably contact with the vertical surface of the vehicle body with the operation of the tilt fixing operation mechanism and engage with the tilt fixing member or the stopper, and release the stopper with respect to the vehicle body in an upright state. A sliding member that is fixedly engaged with the vehicle body; A spring that is elastically mounted between the sliding members and biases the sliding member so that the sliding member is held at an upper position in an upper position thereof. The stopper extends downward, one end of the stopper is pivotally connected to the vehicle body via a pin, and the other end is pivotally connected to the vehicle body via a pin. A rotatable arm rotatable in a state in which engagement with the rod is released, and a rod having one end pivotally connected to an intermediate portion of the rotation arm and the other end pivotally connected to the shaft. A tilt opening / closing auxiliary device with a fixing device, characterized in that: