JP2971452B1 - Lorry step equipment - Google Patents

Abstract

An object of the present invention is to provide a step device of a lorry that allows a worker to easily and safely enter and leave a packing box using steps, has high durability, and prevents forgetting to store the steps. In a freight car in which a part of a peripheral wall of a packing box (2) is openable and closable by an open / close door, a step (6) is provided below the open / close door, and the step (6) is substantially horizontal below the open / close door. A step 6 is secured to the vehicle frame side at the storage position while being rotatably provided in a vertical direction between a work position extending outside of the vehicle and a storage position which is set up below the door. A lashing member 7 is provided, and furthermore, the opening and closing door opened in conjunction with the lashing release operation of the lashing member 7 is prevented from being closed, and opened in conjunction with the lashing operation of the lashing member 7. A restricting member 76a is provided for releasing the blocking of the opened / closed door.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step device for assisting a worker to get on and off a cargo box of a truck.

[0002]

2. Description of the Related Art An opening / closing door is provided on a side wall or a rear wall of a packing box of a truck, and an operator puts a bag into and out of the packing box through the opening / closing door.

[0003] Since the packing box mounted on the vehicle frame is located at a relatively high position, a step is fixed below the opening / closing door, and the operator uses this step to get on and off the packing box. ing.

[0004]

However, in the case where the steps are fixed below the side of the packing box, due to restrictions on the vehicle width,
Since it cannot be provided so as to protrude to the side, it has to be arranged in a state in which it is recessed inward below the side of the packing box, and there is a problem that the usability is poor. In particular, if the steps are placed behind when getting off the packing box, the operator cannot see the steps from the packing box and cannot use them substantially.

In the case where the steps are fixed below the rear part of the packing box, the length of the vehicle is increased, but the steps can be arranged so as to project rearward. If it is arranged, the driver has difficulty in grasping the sense of the rear of the vehicle, and this may cause an accident of hitting this step against an external obstacle or the like when traveling backward, and there is a problem in terms of safety.

[0006]

According to a first aspect of the present invention, there is provided a step device for a lorry, wherein a packing box is mounted on a vehicle frame, and a part of a peripheral wall of the packing box is formed along a slide rail. In a freight car configured to be openable and closable by an openable and closable door, a step is provided below the openable door, and the step extends outwardly of the vehicle in a substantially horizontal state below the openable door. Working position,
The control rod is provided rotatably in the vertical direction between a storage position that is set up below the opening and closing door and vertically movable between the slide rail and the step. The regulating rod is disposed on the slide rail so as to be able to protrude and retract on the slide rail so as to prevent a closing operation of the opening / closing door having an upper end opened at an initial stage of closing, and a lower end thereof is disposed in the storage position. The upper end of the regulating rod is lowered from the slide rail when the step is fixed in the storage position by the fixing means, and the step is disposed in the working position. When the operation is performed, the operation rod connected to the restriction rod protrudes from the slide rail.

According to a second aspect of the invention, there is provided a step device for a lorry having a packing box mounted on a vehicle frame,
In a freight car in which a part of the peripheral wall of the packing box is configured to be openable and closable by a double door or single door, a step is provided below the door, and the step is provided below the door. It is provided rotatably in the up and down direction between a work position that extends outwardly of the vehicle in a substantially horizontal state and a storage position that is set up below the opening and closing door, while the opening and closing door is fixed in a closed state. A restricting rod is disposed movably in the vertical direction, which is the axis direction, from the inside of the hook provided on the packing box for binding, and the upper end of the restricting rod is located inside the hook. And the lower end thereof is used as a securing means for securing the step disposed at the storage position, and the upper end of the regulating rod is used to secure the step to the storage position by the securing means. With submerged from the inside of the hook upon lashing, but configured to be projected placed inside the hook by operating rod in which the steps are connected to the regulating rod when positioned in the working position. According to a third aspect of the invention, there is provided a step apparatus for a lorry, wherein a buffer member is provided for slowing down the rotation speed of the step when the step rotates from the storage position to the working position.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a step device for a truck according to the present invention. In FIG. 1, reference numeral 1 denotes a packing box mounted on a vehicle frame 2. An opening / closing door 3 is provided on a side wall of the packing box 1, and a step device 5 is arranged below the opening / closing door 3.

The opening / closing door 3 is of a sliding type that can slide back and forth, and is configured so that it can be opened by sliding the closing door 3 backward.

As shown in FIG. 2, the step device 5 locks the step 6 rotatably supported by a mounting member 6a fixed to the vehicle frame 2 at a storage position described later. It comprises a securing member 7 and a regulating rod 76 which operates in conjunction with the securing / releasing operation of the securing member 7.

In the step 6, the left and right base ends are supported by mounting members 6a disposed on the left and right sides.
The vertical position between the work position (see FIG. 3) extending substantially horizontally to the side of the vehicle below the door and a storage position that is raised and disposed below the opening and closing door 3 as shown in FIG. It is configured to be movable. Step 6 in the storage position is disposed in an inclined state with its tip end projecting slightly to the side. When the securing member 7 is released, the step 6 is rotated from the storage position to the work position by its own weight when the securing member 7 is released. It is made to move.

The securing member 7 is composed of a securing bracket 72 having a securing hole 71 and a securing pin (securing means) 75 which is detachable from the securing hole 71.

The lashing bracket 72 is fixedly mounted on one side of the step 6 near the tip, and the lashing hole 71 is formed in the middle thereof, and the tip 73 stores the step 6. It is curved so as to guide the securing pin 75 to the securing hole 71 when securing at the position.

The securing pin 75 is connected to a regulating rod 76 and an operating rod 77 which are respectively arranged to be vertically movable.

The lower end of the regulating rod 76 has a securing pin 7.
5, and the upper end portion 76 a penetrates through the bottom of the packing box 1 and is disposed so as to be able to protrude and retract on the slide rail 31 (see FIGS. 1 to 3) of the door 3.

The upper end 76a of the rod 76 is arranged so as to be located near the front of the closing direction of the opening and closing door 3 in a state where the opening and closing door 3 is fully opened by sliding the opening and closing door 3 backward as shown in FIG. I have. In other words, the upper end portion 76a of the regulating rod 76 protrudes above the slide rail 31 at this position to prevent the open / close door 3 from being closed, and sinks below the slide rail 31 to prevent the open / close door 3 from closing.
Release the blockage of.

The operating rod 77 has an upper end 77a.
Are disposed in the packing box 1 through the bottom of the packing box 1, and the lower end 77 b is extended to near the base end of the step 6.

The lower end 77b of the operating rod 77 is disposed so as to come into contact with the contact member 61 provided at the base end of the step 6 when the step 6 is located at the working position. When the member 61 contacts the lower end 77b of the operation rod 77 from below, the operation rod 77 is moved upward.

Therefore, when the operating rod 77 moves upward, the securing pin 75 connected to the operating rod 77 is moved.
The control rod 76 also moves upward, and the upper end 76a of the control rod 76 protrudes above the slide rail 31 due to the upward movement of the control rod 76.

In the middle of the regulating rod 76, a grip 7 is provided.
8 are provided. The grip portion 78 is moved by the operator by pulling the grip portion 78 upward.
The locking pin 75 is pulled up upward from the locking hole 71, and the locking at the storage position is released in step 6. Note that this gripping portion 78 is
May be provided.

One end 9a of a lever 9 similarly arranged in the packing box 1 is pivotally supported on the upper end portion 77a of the operating rod 77 arranged in the packing box 1. The other end 9b of the lever 9 is connected to the other end 9b. By pushing down, the securing pin 75 can be moved upward via the operating rod 77, and in the step 6, the securing at the storage position is released. That is, in the step 6, the securing release at the storage position can be performed not only from outside the packing box 1 but also from inside the packing box 1.

Step 6 is provided on the mounting member 6a side.
A buffer member 62 is provided to prevent the step 6 from rotating to the working position at a time when the is rotated from the storage position to the working position.

As shown in FIG. 4, the cushioning member 62 is disposed so as to penetrate through the cylindrical main body 63 and the main body 63, and is protruded downward by a spring 64 interposed in the main body 63. And a biased buffer pin 65.

The main body 63 includes the left and right mounting members 6.
It is provided so as to penetrate the connecting member 6b connected between the members a. The connecting member 6b contacts the base end of the step 6 when the step 6 is located at the working position, and also serves as a stopper for holding the step 6 at the working position.

The buffer pin 65 is provided integrally with a stopper ring 66 in the middle thereof, and the spring 64 is disposed above the stopper ring 66.

Therefore, when the step 6 is rotated from the storage position to the working position, the lower end of the buffer pin 65 is
The buffer pin 65 contacts the base end of the spring 74.
By moving upward against the urging force, the rotation speed of the step 6 toward the work position can be reduced.

Reference numerals 79a and 79b shown in FIGS. 2 and 3 are guides for guiding the vertical movement of the regulating rod 76 and the operating rod 77. The operating rod 76 and the regulating rod 77 are inserted into the guides 79a and 79b. I have. 79c is
When the step 6 is located at the storage position, the stopper contacts the step 6 and suppresses its rotation.

Next, the operation of the thus configured step device 5 at the time of use will be described.

First, when the lorry travels, the step 6 is arranged at the retracted position as shown in FIG. 2, and is secured by the securing member 7 at this position.

When the user enters the cargo box 1 by taking in / out the cargo, the door 3 of the cargo box 1 is first slid backward to open. Thereafter, when the operator pulls up the grip portion 78 and pulls out the securing pin 75 from the securing hole 71, the step 6 is rotated downward from the storage position by its own weight, and is placed in the working position ( (See FIG. 1). At this time, since the step 6 is gradually rotated by the cushioning member 62, the step 6 does not suddenly rotate from the storage position to the working position, so that the step 6 is safe for the worker and the like, and the shock accompanying the rotation is also reduced. It is small and does not cause damage to each member such as step 6.

The step 6 in the working position is arranged so as to protrude laterally below the opening / closing door 3, and the operator easily steps on the step 6 from the ground by stepping into the packing box 1. In addition, the step 6 can be used to easily and safely descend from the packing box 1 to the ground.

When the step 6 is placed at the working position in this way, the lower end 77b of the operating rod 77 is
Of the operating rod 77 abuts from below.
Is moved upward, the regulating rod 76 connected to the operating rod 77 also moves upward to move its upper end 76a.
Project onto the slide rail 31. As a result, the door 3 is prevented from moving in the closing direction (see FIG. 3).

When the truck is to be driven after the luggage has been taken in and out, the operator rotates the step 6 upward from the working position to the storage position, and moves the step 6 to the securing member 7 in the storage position. To secure. Specifically, first, the step 6 is rotated so that the curved distal end portion 73 of the securing bracket 72 comes into contact with the distal end of the securing pin 75. As a result, the securing pin 75 moves the upper surface of the securing bracket 72 from the distal end portion 73 to the base end side while moving slightly upward with the distal end guided by the distal end portion 73 of the securing bracket 72, and secures the securing pin 75. When it reaches the hole 71, it is inserted into the securing hole 71 by its own weight. In this way, the step 6 is secured by the securing member 7 at the storage position.

When the step 6 is located at the retracted position as described above, the lower end 77b of the operating rod 77 is separated from the contact member 61, and the securing pin 75 is inserted into the securing hole 71. The securing pin 75 moves downward. Due to the downward movement of the securing pin 75, the upper end portion 76a of the regulating rod 76 is lowered from above the slide rail 31. When the upper end portion 76a of the regulating rod 76 is retracted from above the slide rail 31, the opening / closing door 3 can move in the closing direction, and the worker can run by closing the opening / closing door 3. State.

That is, unless the step 6 is arranged in the storage position and secured and held, the upper end portion 76a
Is projected on the slide rail 31 to prevent the opening / closing door 3 from moving in the closing direction. Normally, it is not conceivable to travel with the opening / closing door 3 opened. It is locked at the position. Therefore, even if the step 6 is extended to the side and arranged at the work position, the step 6 is securely held and held at the storage position during traveling, so that an accident due to forgetting to store the step 6 can be prevented, and the step 6 is safe.

Further, since the closing operation of the opening / closing door 3 is prevented by the upper end portion 76a of the regulating rod 76 in the initial stage,
Even if the door 3 is erroneously closed when the upper end 76a of the regulating rod 76 is protruding, the impact received by the upper end 76a of the regulating rod 76 can be minimized,
Damage to the regulating rod 76 and the like due to this impact can be prevented. That is, if the upper end portion 76a of the regulating rod 76 is disposed so as to be in contact with the opening and closing door 3 immediately before the closing operation of the opening and closing door 3 is completed, and the closing of the opening and closing door 3 is prevented, This is because the impact received by the upper end portion 76a is much larger than that described above, and this causes damage to the upper end portion 76a of the regulating rod 76 and the like.

In the present embodiment, the lever 9 is provided in the packing box 1, and the step 6 can be rotated from the storage position to the working position from the inside of the packing box 1 by the lever 9. The turning operation of Step 6 can be performed not only by the lever 9 but also by providing a gripper or the like at the upper end of the operating rod 77, for example.

The turning operation of the step 6 in the packing box 1 is not always necessary, and the operation can be performed only from the outside by omitting the lever 9 and the upper end 77a of the operating rod 77. It may be. In this case, during the rotation of step 6, the regulating rod 76
It is necessary to provide a stopper or the like on the regulating rod 76 or the like so that the stopper does not fall downward by its own weight.

[0040]

FIG. 5 shows a step device provided below a double door type opening / closing door. The same members and members having the same functions as those of the above-described step device are denoted by the same names and reference numerals, and the following description will be made while supplementing the functions of the respective members as necessary.

In this step device 5, a step 6 is rotatably provided substantially below the center of the double door type opening / closing door 3.

The regulating rod 76 and the operating rod 77 are vertically movable at substantially the center of the base end of the step 6, and the bent upper end of the operating rod 77 is connected to the middle of the regulating rod 76. ing.

The regulating rod 76 has an upper end 76a.
Are arranged inside the hook 100 for securing the opening / closing door 3 at the closed position so as to be freely protruded and retracted. This hook 100
Is disposed substantially at the center of the lower edge of the opening 1a of the packing box 1 which is opened and closed by the opening and closing door 3.

The lower end of the regulating rod 76 plays the role of the above-described securing pin (securing means) 75, and this lower end (75) is inserted into the securing hole 71 formed substantially at the center of the tip of the step 6. It is made detachable.

Further, the lower end 77b of the operating rod 77 is
It comes into contact with the base end of the step 6 disposed at the working position, thereby moving the regulating rod 76 upward and moving the upper end 7 thereof.
6a is configured to protrude into the hook 100.

A handle 110 extending from the operating rod 77 to one side of the step 6 is connected to an intermediate portion of the operating rod 77. Therefore, the regulating rod 76 is controlled by the handle 110 via the operating rod 77.
Is moved upward, and the lower end (the securing pin 75) of the regulating rod 76 is pulled out from the securing hole 71, whereby the securing in the storage position in step 6 is released and the step 6 is disposed in the working position.

When the step 6 is located at the working position in this way, the lower end 77b of the operating rod 77 is
The base end of the rod abuts from below and moves the operating rod 77 upward, so that the regulating rod 76 connected to the operating rod 77 also moves upward, and its upper end 76a projects into the hook 100. . Thus, even if the opening / closing door 3 is closed, the upper end portion 76 protruding into the hook 100 even when the opening 1a is closed.
a will prevent shackling. In other words, if the step 6 is left in the working position, the door 3 cannot be secured, and the lorry cannot travel.

As described above, the restriction rod 7 is
6, the upper end 76a is projected to prevent the opening / closing door 3 from being tied up. Therefore, even if the opening / closing door 3 is tightened in a state where the upper end 76a is projected, this impact acts directly on the upper end 76a. Therefore, damage to the regulating rod 76 and the like can be prevented.

The other operation and effect are the same as those of the above-described step device, and the description is omitted. Further, the opening / closing door 3 is not limited to the double door opening type, and may be a single opening type. Further, the portion of the peripheral wall of the packing box 1 where the opening / closing door 3 is provided may be anywhere on the left and right side walls and the rear wall of the packing box 1.

[0051]

As described above, according to the first and second aspects of the present invention, the working position where the step extends outwardly of the vehicle in a substantially horizontal state below the door, and the step below the door. The step is arranged in the working position because the step is disposed in the working position, so that the worker can easily and safely use the step that protrudes to the side. You can get in and out of the packing box. Further, since the blocking prevention of the opening / closing door by the restricting rod is released only when the step is secured by the securing means in the storage position, it is possible to prevent the step from being forgotten to be stored, thereby preventing the step from being stored in the working position. Can be prevented, and a highly safe vehicle can be provided. In addition, since the closing operation of the sliding-type opening / closing door is prevented by the upper end of the restricting rod at the initial stage of the closing as in the invention according to claim 1, when the upper end of the restricting rod projects, it is erroneously opened and closed. Even when an attempt is made to close the door, the impact received on the upper end of the regulating rod can be minimized, and damage to the regulating rod and the like due to this impact can be prevented. Further, as in the invention according to claim 2, the upper end of the regulating rod is projected inside the hook to prevent the double-door or single-opening door from being locked, so that the upper end of the regulating rod is prevented. Even if the opening and closing door is closed in a state where the protruding portion is protruded, the impact does not directly act on the upper end portion, thereby preventing damage to the regulating rod and the like.

According to the third aspect of the present invention, when the step rotates from the storage position to the working position, the rotation speed of the step is reduced by the cushioning member, so that the step does not rotate rapidly. It is possible to enhance the safety associated with the rotation operation, reduce the impact when the member is arranged at the work position, prevent damage to each member such as steps, and provide a highly durable product.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a step device for a lorry of the present invention.

FIG. 2 is a partially cutaway side view showing the step device disposed in a storage position.

FIG. 3 is a partially cutaway side view showing the step device arranged in a working position.

FIG. 4 is a perspective view illustrating a configuration of a buffer member provided in the step device.

FIG. 5 is a perspective view showing another configuration of the step device for a lorry of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packing box 2 Car frame 3 Opening / closing door 31 Slide rail 5 Step device 6 Step 62 Buffering member 7 Fixing member 75 Fixing pin (fixing means) 76 Restriction rod 76a Upper end portion 77 Operation rod 100 Hook

Claims (3)

(57) [Claims] 1. A cargo box is mounted on a vehicle frame of a vehicle, and a part of a peripheral wall of the cargo box slides along a slide rail.
In a lorry configured to be openable and closable by an openable and closable door, a step is provided below the openable and closable door, and the step is an operation of projecting outward from the vehicle in a substantially horizontal state below the openable and closable door. Between the sliding rail and the step, and a regulating lock extending from the slide rail to the step.
Is movably arranged in the vertical direction, which is the axis direction of the axis.
The restricting rod is closed by an opening / closing door whose upper end is open.
The slide so as to prevent the closing operation at the early stage of closing
It is provided on the rail so that it can come and go, and its lower end
Lashing hand for lashing a step located in said storage position
The upper end of the regulating rod is provided with the securing means.
When the step is tied at the storage position, the slide
Steps are placed in the working position
When the actuating rod connected to this regulating rod
Is configured to protrude from the slide rail.
A step device for a lorry. 2. When a cargo box is mounted on a vehicle frame,
In addition, a part of the peripheral wall of the packing box is a double-open or single-open type.
Luggage truck that can be opened and closed freely with a
And a step is provided below the opening and closing door.
Stretches outward from the vehicle in a substantially horizontal state below the door.
It is set up at the work position of
Is provided to be rotatable up and down between
In order to secure the door in a closed state,
From the inside of the provided hook,
Is movably arranged in the vertical direction, which is the axis direction of the axis.
The upper end of the regulating rod is located inside the hook.
It is provided so that it can come and go, and its lower end is
It is not a securing means to secure the steps placed in place.
The upper end of the regulating rod is secured by the securing means.
Sinks from inside hook when step is tied in stowed position
When the step is in the working position.
Of the hook by the operating rod connected to the regulating rod of
It is characterized in that I is urchin arrangements protrude arranged inside
Lorry step equipment. 3. The method according to claim 1, wherein the step is performed from a storage position to a work position.
When turning, the speed of this step
The truck according to claim 1 or 2, further comprising a buffer member.
Step equipment.