WO2023181632A1

WO2023181632A1 - Loading assist device for vehicle

Info

Publication number: WO2023181632A1
Application number: PCT/JP2023/002628
Authority: WO
Inventors: 靖野澤; 清孝稲垣; 靖隆臼杵
Original assignee: 株式会社カーメイト; 林テレンプ株式会社
Priority date: 2022-03-25
Filing date: 2023-01-27
Publication date: 2023-09-28
Also published as: JP2023143115A

Abstract

Proposed is a loading assist device for a vehicle which generates a return assist force for tilted movable frames to reduce a load on a worker while securing a pulled-out amount of the movable frames.　The loading assist device 10 comprises a fixed frame 12 and movable frames 30 which slide along the fixed frame 12 and is characterized in that the fixed frame 12 is the provided with a slide area 14 including a protruding-side stopper 16 which restricts the protruding amount of the movable frames 30, each of the movable frames 30 is provided with a tilt control means 36, a plurality of the movable frames 30, which are arranged in parallel, are coupled to each other by assist frames 50 and are allowed to tilt about stop pins 34 as base points, and the tilt control means 36 is configured to generate a force toward a direction which obstructs the tilt.

Description

Vehicle loading aid

The present invention relates to a loading assistance device for a vehicle, and particularly to a loading assistance device that can slide a loading portion along a rail fixed to a roof and pull it downward.

As a vehicle loading assist device having a sliding function and a tilting function, those disclosed in Patent Document 1 and Patent Document 2 are known, for example. The loading assist device disclosed in Patent Document 1 has a movable rail 2 that slides on a fixed rail 1 fixed to the roof of a vehicle 100 as shown in FIG. 9(B), as shown in FIG. 9(A). In addition, it is configured so that it can be pulled down on the side of the vehicle 100. Specifically, a fixed rail 1 having a closed surface of a C-shaped channel material disposed on the upper surface is fixed to the roof, and a holder 3 which can be tilted freely is provided at the end of the fixed rail 1 on the side of the vehicle. A sliding member 3a is arranged on the upper surface of the holder 3, and a regulating member 3b is arranged on the side. The movable rail 2 is arranged with the open surface of the C-shaped channel material facing the fixed rail 1 side, and a groove 2a on the side surface of which the regulating member 3b slides is provided. However, in the loading assist device having such a configuration, when the load is heavy, it may be difficult to return the movable frame 2 to the loading position.

In contrast, the loading assist device disclosed in Patent Document 2 is composed of a base body fixed to the roof of the vehicle and a slide frame body that slides in the vehicle width direction along the base body. The base body is provided with two frames each having a slide groove in its side wall, and the slide frame body is fitted between the frames and includes a slider having a guide pin that slides in the slide groove. Further, Patent Document 2 discloses that a coil spring or a damper device is disposed between the base body and the slider to apply a force to return the tilted slide frame body toward the center of the vehicle by moving it in the vehicle width direction. Are listed. A loading aid device with these features makes it possible to obtain auxiliary force from coil springs and damper devices when returning the slide frame to the loaded state, making it possible to load heavy loads with a small amount of force. It is thought that it will be possible. However, in the loading aid device having such a configuration, since the coil spring and the damper device are fixed to the end of the base body, it may be difficult to increase the sliding amount of the slide frame body.

Further, as a loading device that has both a sliding mechanism and a tilting mechanism, a bicycle parking device as disclosed in Patent Document 3 is known. The bicycle parking device disclosed in Patent Document 3 is a device for pushing a bicycle up to the height of a horizontal frame supported by a column, and includes a horizontal frame fixed to the column and a bicycle parking device that rotates with respect to the horizontal frame. It is basically constructed of three frames: a rotating beam and a slide beam that slides with respect to the rotating beam. A gas cylinder is disposed between the horizontal frame and the rotating beam to assist in the force of lifting the slide beam. However, the bicycle parking device disclosed in Patent Document 3 is based on the premise that the sliding beam can be pulled out and rotated at the same time to smoothly load bicycles, so the movable frame (sliding beam) It cannot be applied to a vehicle loading aid device that requires separate extraction and rotation operations. Further, since the bicycle parking device disclosed in Patent Document 3 is an installed object, measures against vibrations like those of objects mounted on a vehicle are not taken into consideration.

JP2020-62898A Japanese Patent Application Publication No. 2005-306087 Japanese Patent Application Publication No. 8-240027

Therefore, the present invention provides a vehicle loading assist device that has a relatively simple configuration, secures the amount of pullout of the movable frame, and generates return assisting force for the tilted movable frame, thereby reducing the burden on the operator. The purpose is to propose.

A vehicle loading aid device according to the present invention for achieving the above object includes a plurality of fixed frames fixed to a roof of a vehicle or a carrier fixed to the roof, and a plurality of fixed frames corresponding to each of the plurality of fixed frames. A loading auxiliary device comprising: a plurality of movable frames, each of which is provided with a plurality of movable frames that slide along the longitudinal direction of the corresponding fixed frame and allow at least a portion of the movable frames to protrude from the fixed frame; Each of the frames is provided with a slide area provided with a protrusion-side stopper that regulates the amount of protrusion of the movable frame, and each of the movable frames slides along the slide area and abuts against the protrusion-side stopper. A contacting stop pin is provided, and at least one of the plurality of movable frames is provided with a tilt control means, and each of the movable frames is connected by an auxiliary frame provided in a direction intersecting the longitudinal direction. and is capable of tilting with respect to the fixed frame using the stop pin as a reference point, and the tilting control means is configured to generate a force in a direction that prevents the tilting. .

Further, in the slide area of the vehicle loading aid device having the above-described features, the slide area includes a storage-side stopper that positions the movable frame when it is stored, and a storage-side stopper that prevents the movable frame from tilting in the stored state. It is advisable to provide means for preventing tilting. According to the vehicle loading aid device having such characteristics, when the movable frame is stored, it is possible to suppress the movable frame from flapping due to vehicle vibrations, etc., and to ensure the stability of the loaded object. can.

Further, in the vehicle loading aid device having the above characteristics, the fixed frame has a C-shaped cross section with an opening along the longitudinal direction disposed on the upper surface, and the movable frame covers the opening in plan view. It is better to have a top plate of the same width. With such features, it is possible to prevent dust such as dirt from entering the fixed frame that constitutes the slide area.

Further, in the vehicle loading aid device having the above-mentioned characteristics, at least the end portion of the top plate in the width direction, which is disposed in the traveling direction of the vehicle, has the movable frame accommodated therein. It is desirable that an inclined surface is provided, the end of which is located below the upper end of the fixed frame. By having such characteristics, it becomes possible to suppress the influence of wind and rain while the vehicle is running.

Furthermore, the tilting control means in the vehicle loading assist device having the above characteristics has one end rotatably locked to the movable frame, and the other end slidably and rotatably locks to the movable frame. a swinging member that can be locked, and a biasing means that generates a reaction force by compression, and one end of the swinging member is an end that does not protrude from the fixed frame with the stop pin as a base point. One end of the urging means may be locked to the stop pin, and the other end of the urging means may be locked to the other end of the swinging member. With these features, it is a simple configuration that essentially combines two frames, a fixed frame and a movable frame, and while ensuring a sufficient amount of pullout of the movable frame, when the movable frame is tilted, This makes it possible to generate an auxiliary force during return.

According to the vehicle loading assist device having the above-described characteristics, it is possible to secure the amount of pullout of the movable frame while generating a return assisting force for the tilted movable frame, thereby reducing the burden on the operator.

FIG. 2 is a side sectional view showing the configuration of the loading assist device according to the embodiment. FIG. 3 is an exploded sectional view of a fixed frame and a movable frame in the loading assist device according to the embodiment. It is a figure for explaining the movement of a movable frame. FIG. 3 is a diagram showing the cross-sectional shapes of a fixed frame and a movable frame and the arrangement relationship of rollers. It is a figure showing the cross-sectional structure of a tilting prevention means. 6 is a diagram showing a cross section taken along line AA in FIG. 5. FIG. FIG. 3 is a perspective view showing a state in which the loading assist device is mounted on the roof of a vehicle. FIG. 3 is a diagram for explaining the loading and unloading operation of a loaded object using the loading assisting device according to the embodiment. FIG. 2 is a diagram for explaining the configuration of a conventional loading assist device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a vehicle loading assistance device of the present invention will be described in detail with reference to the drawings.
[composition]
First, with reference to FIGS. 1 to 7, the configuration of a vehicle loading assistance device (hereinafter simply referred to as loading assistance device 10) according to the present embodiment will be described. In the drawings, FIG. 1 is a side sectional view showing the configuration of a loading assistance device according to an embodiment, and FIG. 2 is an exploded sectional view of a fixed frame and a movable frame in the loading assistance device. Moreover, FIG. 3 is a diagram for explaining the movement of the movable frame, and FIG. 4 is a diagram showing the cross-sectional shapes of the fixed frame and the movable frame and the arrangement relationship of the rollers. FIG. 5 is a diagram showing a cross-sectional structure of the tilting prevention means, and FIG. 6 is a diagram showing a cross-section taken along line AA in FIG. Furthermore, FIG. 7 is a perspective view showing a state in which the loading assist device is mounted on the roof of the vehicle.

The loading assist device 10 according to the present embodiment is basically configured with a fixed frame 12 and a movable frame 30. The fixed frame 12 is an element that is fixed directly to the roof of the vehicle 100 or to the carrier 110 fixed to the roof of the vehicle 100, and serves as the base of the loading aid device 10 according to the embodiment. In the example shown in FIG. 7, the fixed frame 12 is fixed to a carrier 110 fixed to the roof of the vehicle 100.

The fixed frame 12 is arranged on the roof parallel to the ground, that is, horizontally. This is to stably hold the load. The fixed frame 12 is provided with at least a slide area 14, and the slide area 14 is provided with a protrusion-side stopper 16 and a storage-side stopper 18. Further, the fixed frame 12 according to the embodiment is constituted by a member having a C-shaped cross section (see FIGS. 4, 5, etc. for the cross-sectional shape) in which an opening provided along the longitudinal direction is arranged on the upper surface, The inner surfaces of the flanges 12a located on both sides of the opening in cross-sectional view constitute a slide area 14. Therefore, like the opening, the slide area 14 is also formed along the longitudinal direction of the fixed frame 12.

The protruding side stopper 16 is an element for regulating the amount of protrusion of the movable frame 30, which will be described in detail later. (one end) of the tilt angle positioning member 20. On the other hand, the storage side stopper 18 is constituted by a notch provided in the tilt prevention means 22 provided at the end (the other end) of the fixed frame 12 on the side where the movable frame 30 is stored.

The movable frame 30 is an element that slides along the longitudinal direction of the fixed frame 12 and is tiltable with respect to the fixed frame 12, thereby facilitating loading and unloading of loaded objects. The movable frame 30 is provided with at least a roller 32 that rolls in the slide area 14 along the longitudinal direction of the fixed frame 12, and a stop pin 34 provided closer to the protruding end than the roller 32, By fitting this stop pin 34 into the protruding side stopper 16, the amount of movement of the movable frame 30 on the protruding side is regulated. On the other hand, for the storage-side stopper 18, the support shaft 32a that supports the roller 32 plays a role similar to that of the stop pin 34.

Furthermore, the movable frame 30 according to the embodiment is equipped with a tilting control means 36. The tilting control means 36 is an element that applies an auxiliary force to return the movable frame 30 to the horizontal direction when it is tilted, and can be attached with a locking mechanism 42 for maintaining the tilted state. In this embodiment, the tilting control means 36 is configured by combining the stop pin 34, the roller 32, the urging means 38, and the swinging member 40. Specifically, a biasing means 38 is arranged between the stop pin 34 and the roller 32. The biasing means 38 may be of any type as long as it generates a force that repels the force in the compression direction (the force in the direction indicated by arrow A in FIG. 3), such as a gas spring or a coil spring. can be mentioned. Further, the swinging member 40 is rotatably arranged between the roller 32 and the movable frame 30. The engagement location of the swinging member 40 with respect to the movable frame 30 is located near the end opposite to the protruding end with the engagement location of the stop pin 34 as a base point. In the loading auxiliary device 10 having the tilting control means 36 having such a configuration, a link mechanism is constructed in which the movable frame 30 and the swinging member 40 are movable links, the fixed frame 12 is a fixed link, and the rollers 32 are sliders. When the movable frame 30 is tilted in the direction shown by the arrow C in FIG. 3, the roller 32 moves in the direction (in the direction shown by the arrow A in FIG. 3) approaching the stop pin 34, which is the rotational reference point. This is accomplished by connecting the movable frame 30 and the support shaft 32a of the roller 32 by a swinging member 40 that does not extend or contract. Specifically, as the movable frame 30 is tilted, the swinging member 40 rises in the direction shown by arrow B in FIG. As a result, the roller 32 is moved. Note that the biasing means 38, which has received the force in the compression direction in this manner, generates a reaction force. Therefore, even when a load is placed on the movable frame 30, it is easy to return the movable frame 30 to the horizontal position.

The locking mechanism 42 is constituted by a plate having a hook-shaped groove 42a that shifts the support shaft 32a of the roller 32 rolling along the slide area 14 from the direction in which the reaction force generated by the biasing means 38 is generated. In the loading assisting device 10 according to the embodiment, when the roller 32 approaches the stop pin 34 due to the tilting of the movable frame 30, the biasing means 38 disposed between the two is compressed and a reaction force is generated. It is configured to occur. Here, the reaction force generated by the biasing means 38 acts in a direction to push the roller 32 back along the slide area 14. In the locking mechanism 42, the direction in which the biasing means 38 presses the support shaft 32a of the roller 32 is changed using the hook-shaped groove 42a, and there is no escape route for the reaction force in the changed pressing direction (reaction force generation direction). , it becomes possible to maintain the biasing means 38 in a compressed state. By providing such a locking mechanism 42, when loading or unloading a load on the movable frame 30, the tilted state can be maintained without holding down the movable frame 30, making it easier to load and unload the load. It becomes easier. Note that the lock mechanism 42 can be released by applying a force that returns the support shaft 32a of the roller 32 from the hook-shaped groove 42a to the slide area 14 side. In the loading assisting device 10 according to the embodiment, a slight force may be applied to lift the protruding end portion of the movable frame 30.

The loading auxiliary device 10 according to the present embodiment has a plurality of pairs of fixed frames 12 and movable frames 30 configured as described above arranged in parallel, and has an auxiliary frame 50 arranged in a direction intersecting the longitudinal direction of the movable frame 40. It is connected. Specifically, for example, two pairs of fixed frames 12 and movable frames 30 may be arranged along the longitudinal direction of the vehicle, and both movable frames 30 may be connected to each other by an auxiliary frame 50. With such a configuration, it becomes possible to easily load long objects such as ladders. Furthermore, it is possible to suppress twisting due to movement misalignment between multiple frames, and to prevent loss of balance during loading and unloading of loaded items.

Furthermore, as described above, the loading assisting device 10 according to the present embodiment is provided with the tilt prevention means 22 that prevents the movable frame 30 from fluttering due to tilting when the movable frame 30 is stored. The tilt prevention means 22 is an element that functions when a hook 40a provided on the swinging member 40 engages with a flange 22a of an engagement base provided with the storage-side stopper 18. The hook 40a is configured to have an engagement surface along the bottom surface of the fixed frame 12 when the swinging member 40 is in a horizontal position. On the other hand, the flange 22a of the tilt prevention means 22 is configured to have an engagement surface at a position slightly lifted from the bottom surface of the fixed frame 12, so that when the swinging member 40 is kept horizontal, the storage side stopper 18 The hook 40a is positioned so as to engage the flange 22a of the tilt prevention means 22 when the support shaft 32a is engaged with the support shaft 32a. According to such a configuration, even if a force is applied in the direction in which the movable frame 30 is tilted, the tilt prevention means 22 prevents the swinging member 40 from rising (rotating), and the tilting of the movable frame 30 is suppressed. be done. With such a configuration, even if the vehicle 100 is subject to many vibrations as it travels, it is possible to maintain the stability of the loaded object.

Furthermore, in the loading assisting device 10 according to the embodiment, a top plate 44 is provided on the upper surface of the movable frame 30 to cover the opening formed in the fixed frame 12. With such a configuration, it is possible to suppress dust from entering the inside of the fixed frame 12 that constitutes the slide area 14. Further, the top plate 44 is provided with an inclined surface 44a at least at an end portion disposed in the traveling direction of the vehicle 100. The inclined surface 44a is formed such that its end (the tip in the extending direction) is located below the upper end of the fixed frame 12 when the movable frame 30 is housed. With such a configuration, it is possible to suppress the influence of wind and rain while the vehicle is running.

Furthermore, in the loading assisting device 10 according to the embodiment, the movable frame 30 that intervenes in the opening of the fixed frame 12 has a C-shaped cross section as shown in FIGS. 4 and 5. The tilt angle positioning member 20 is provided with a rolling roller 24 that rolls into contact with the inner periphery of the C-shaped cross section (the back side of the top plate) and prevents the movable frame 30 from coming off (jumping up, etc.) using a flange 40b. . With such a configuration, when the movable frame 30 is projected from the fixed frame 12 or when the movable frame 30 carrying a load is stored, the movable frame 30 can slide smoothly. .

[Effect]
Next, the operation of loading and unloading a load onto the roof of the vehicle 100 using the loading assisting device 10 configured as described above will be described with reference to FIG. 8. First, when loading a load onto the loading assist device 10, the movable frame 30 is moved from the state shown in FIG. 8(A) to the state shown in FIG. , and pull it out to the side of the vehicle 100. At this time, the stop pin 34, roller 32, swing member 40, and biasing means 38 attached to the movable frame 30 move toward one end of the fixed frame 12 together with the movable frame 30.

After the movable frame 30 is pulled out until the stop pin 34 engages with the protrusion-side stopper 16 provided on the tilt angle positioning member 20, a force is applied to the protrusion-side tip toward the vehicle 100, that is, in a downward direction. As a result, as shown in FIG. 8(C), it rotates (tilts) about the stop pin 34 as a reference point. When the movable frame 30 is tilted and the tilt angle of the movable frame 30 reaches a predetermined angle, the support shaft 32a of the roller 32 intervenes in the groove 42a forming the locking mechanism 42, and the tilted state of the movable frame 30 is adjusted. It will be maintained. This action prevents the movable frame 30 from being released from its tilted state due to the action of the biasing means 38 when loading and unloading the loaded object.

After a load is placed on the movable frame 30 in the tilted state, by applying force to lift the protruding end of the movable frame 30 in the tilted state, the support shaft 32a of the roller 32 locks into the locking mechanism 42. from the groove 42a toward the slide area 14, and the locked state is released. When the locked state is released, the biasing means 38 generates a force (reaction force) in the direction of separating the roller 32 from the stop pin 34. When the roller 32 separates from the stop pin 34, a force acts on the swinging member 40, which is rotatably engaged with the support shaft 32a of the roller 32, in a direction that causes it to fall toward the stop pin 34. The movable frame 30 is drawn toward the fixed frame 12 by the action of the swinging member 40 falling down. As a result, a force acts in a direction that causes the movable frame 30 to return to the horizontal state, and even when a load is placed on the movable frame 30, it is possible to return the movable frame 30 to the horizontal state with a small force.

When the protrusion of the movable frame 30, which has returned to the horizontal state, is pushed toward the fixed frame 12 and stored, the spindle 32a of the roller 32 engages with the storage stopper 18, and the hook 40a of the swinging member 40 acts as a tilt prevention means. 22, and the movement of the movable frame 30 is restricted. This makes it possible to stably hold the loaded object even when the vehicle 100 is traveling.

[effect]
According to the loading assist device 10 as described above, when loading a load onto the roof of the vehicle 100, it is possible to push up the load placed on the movable frame 30 with a small force, reducing the burden on the operator. can. Further, by providing a top plate 44 on the movable frame 30 and providing an inclined surface 44a in the direction of movement, it is possible to prevent dirt and the like from entering the fixed frame 12 and to reduce the influence of wind and rain when the vehicle is running. I can do it. Further, by providing the tilt prevention means 22 which functions when the movable frame 30 is stored, it is possible to suppress the movable frame 30 from fluttering in the stored state. Furthermore, by connecting a plurality of movable frames 30 with the auxiliary frame 50, it becomes possible to synchronize the operations of the movable frames 30 disposed adjacent to each other, so that the balance when loading and unloading the load can be maintained. Become.

In the embodiment described above, it has been explained that the plurality of fixed frames 12 and movable frames 30 are all provided with the tilting control means 36. However, the tilting control means 36 only needs to be provided in at least one of the plurality of movable frames 30 that form a pair with the fixed frame 12. This is because if at least one movable frame 30 is provided with the tilting control means 36, an auxiliary force will work when pushing up the loaded object.
Further, in the above embodiment, the movable frame 30 is pulled out toward the side of the vehicle 100, but it may be pulled out toward the rear of the vehicle 100.

10...Loading auxiliary device, 12...Fixed frame, 12a...Flange, 14...Slide area, 16...Protrusion side stopper, 18...Storage side stopper, 20......Tilt angle Positioning member, 22...Tilt prevention means, 22a...Flange, 24...Rotation roller, 30...Movable frame, 32...Roller, 32a...Spindle, 34...Stop Pin, 36...Tilt control means, 38...Biasing means, 40...Swinging member, 40a...Hook, 40b...Flange, 42...Lock mechanism, 42a...Groove , 44...Top plate, 44a...Slanted surface, 50...Auxiliary frame, 100...Vehicle, 110...Carrier.

Claims

A plurality of fixed frames fixed to the roof of the vehicle or a carrier fixed to the roof, and provided corresponding to each of the plurality of fixed frames, and slidable along the longitudinal direction of the corresponding fixed frame, A loading auxiliary device comprising a plurality of movable frames, at least a portion of which can protrude from the fixed frame,
Each of the fixed frames is provided with a slide area provided with a protrusion-side stopper that regulates the amount of protrusion of the movable frame,
Each of the movable frames is provided with a stop pin that slides along the slide area and comes into contact with the protrusion-side stopper, and at least one of the plurality of movable frames is provided with a tilt control means. established,
Each of the movable frames is connected by an auxiliary frame provided in a direction intersecting the longitudinal direction, and is capable of tilting with respect to the fixed frame using the stop pin as a reference point, and the tilting control means includes: A loading aid device for a vehicle, characterized in that it is configured to generate a force in a direction that prevents the tilting.
The slide area includes a storage-side stopper that positions the movable frame when it is stored;
2. The vehicle loading aid device according to claim 1, further comprising a tilt prevention means for preventing the movable frame from tilting in the stored state.
The fixed frame has a C-shaped cross section with an opening along the longitudinal direction disposed on the top surface,
3. The vehicle loading aid device according to claim 1, wherein the movable frame has a top plate having a width that covers the opening in plan view.
Among the widthwise ends of the top plate, at least the ends disposed in the traveling direction of the vehicle have an end located below an upper end of the fixed frame when the movable frame is stored. 4. The vehicle loading aid device according to claim 3, further comprising an inclined surface that allows the vehicle to be loaded.
The tilting control means includes a swinging member whose one end is rotatably locked to the movable frame and whose other end is slidably and rotatably locked to the slide area, and which generates a reaction force due to compression. and a biasing means for causing
One end of the swinging member is locked near an end that does not protrude from the fixed frame with the stop pin as a base point,
Any one of claims 1 to 4, wherein one end of the urging means is locked to the stop pin, and the other end of the urging means is locked to the other end of the swinging member. The vehicle loading aid device according to item 1.