JP2000335250A - Truck bed roof open-close mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an open-close mechanism for a roof portion with which upper portion of an upper space of a truck bed can be opened almost fully and to provide a mechanism that allows easy open-close operation and particularly having a simple structure with low cost. SOLUTION: A roof portion 15 is provided above a bed of a truck having a cabin 1A and a bed 1B. Guide bars 21A, 21B which run along vehicle length direction respectively are disposed at positions which correspond to both sides of a truck width of the roof portion and are higher than the cabin upper surface level. Above a guard frame 5 at a front end of the truck bed, guide members 9A, 9B for supporting and guiding each guide bar in a longitudinal direction of the vehicle are disposed. By guiding the guide bars with the guide members and moving the roof portion from above the truck bed to above the cabin, upper portion of an upper space is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for opening and closing a roof portion of a truck bed of a truck.
In particular, the present invention relates to a roof opening / closing mechanism suitable for attaching a hood-like roof to a small truck having a small difference between the length of a bed portion and the length of a cabin portion, for example, a light truck truck.

[0002]

2. Description of the Related Art Conventionally, with regard to a lorry, it has been conventionally practiced to mount a hood on a loading platform so as to prevent rainwater from hitting the cargo on the loading platform. When the hood is attached in this way, generally, the back end of the hood of the loading platform is left open,
Alternatively, the rear end surface of the hood is configured to be openable and closable, and cargo is often taken in and out from the rear end surface. However, in such a bed with a hood, since the space above the bed is not opened upward, a heavy cargo cannot be lifted by a crane or the like and placed on the bed from above. Conversely, it is not possible to lift cargo with a crane from above and take out the cargo.

[0003] On the other hand, as a hood of a loading platform, there is also one having a bellows structure which can be extended and contracted in the front-back direction. In general, a large number of bars intersecting in an X-shape are connected, a hood is attached to the X-shaped bar, and the hood is reduced by rotating the X-shaped bar. In such a bellows-shaped telescopic hood, it is possible to open the upper space of the loading platform upward by reducing the hood forward. However, even when the bellows-shaped hood is reduced, a certain length remains in the bed portion, so that the space above the bed cannot be completely opened. In addition, such a bellows-shaped telescopic hood requires a large number of X-shaped bars and a large number of columns in order to support the hood cloth or membrane sheet material in a stretchable manner at intervals. The weight increases, and as a result, a large force is required to perform the expansion and contraction, and the cost must be increased.

[0004]

As described above, since the space on the loading platform is not opened upward in the conventional general loading platform hood, particularly heavy cargoes are suspended by a crane and loaded. Conversely, it is difficult to lift and remove the cargo on the loading platform with a crane, and therefore, it is difficult to apply the method to heavy cargo. On the other hand, with a bellows-shaped telescopic hood, it is possible to open the space above the cargo bed to a certain extent upward, but the entire hood must be structurally heavier, which makes it difficult to expand and contract the hood. However, it is difficult to apply the method to small trucks, for example, light four-wheeled trucks.

[0005] The present invention has been made in view of the above circumstances, it is possible to easily and easily open the upper part of the space above the cargo bed, does not require a large force for opening and closing, and is also structurally. It is an object of the present invention to provide an open / close mechanism for a truck truck that is simple and inexpensive. Particularly, in the present invention, the length of the bed portion is relatively short,
Provided is an opening / closing mechanism for a carrier suitably applied to a lorry having a small difference between the length of the carrier and the length of a cabin including a driver's seat.

[0006]

According to the present invention, basically, when opening the roof covering the upper surface of the upper space of the loading platform, the roof is moved forward of the loading platform to be positioned above the cabin. I did it.

[0007] Specifically, a truck roof opening / closing mechanism according to the first aspect of the present invention comprises a truck having a cabin and a carrier, the roof being provided above the carrier.
And at the position corresponding to both sides in the width direction of the cargo bed on this roof, there are provided guide rods along the front and rear direction of the lorry, respectively, at a position higher than the upper level of the cabin, while on the top of the torii gate at the front end of the cargo bed Is provided with a guide member for supporting and guiding each of the guide rods in the front-rear direction. The guide member guides the guide rods, and moves the roof from a position above the loading platform to a position above the cabin. Thus, the upper part of the upper space of the loading platform is opened.

According to a second aspect of the present invention, in the cargo truck roof opening / closing mechanism according to the first aspect, a support frame is mounted on a horizontal portion of an upper end portion of the torii gate along a length direction of the horizontal portion, and The guide members are fixed to both end portions of the support frame, and each of the guide members is configured so that each of the guide bars penetrates the center thereof and surrounds the outer peripheral surface of each of the guide bars. It is characterized by having a configuration having the above rotatable wheels.

According to a third aspect of the present invention, in the truck roof opening / closing mechanism according to the second aspect, the guide member surrounds the outer peripheral surface of each guide rod and sandwiches the three or more wheels. Is characterized in that two or more sets of wheels are provided at intervals in the front-rear direction of the guide rod.

According to a fourth aspect of the present invention, there is provided the cargo truck roof opening and closing mechanism according to the first aspect, wherein the roof portion is located in front of the torii gate at the front end of the cargo truck and at a position higher than the upper surface level of the cabin. A front end frame, and a rear end frame located at the rear end of the carrier, and the guide rod is bridged between the front end frame and the rear end frame. A center support rod is bridged between the frame and the rear end frame, and a roof sheet member made of cloth or membrane material covers the front end frame, the rear end frame, the two guide rods, and the center support rod. Is provided.

According to a fifth aspect of the present invention, there is provided the truck roof opening / closing mechanism according to the fourth aspect, wherein the rear end frame includes an upright support rod hanging down toward an upper surface of the tilt plate on both sides of the cargo bed. A receiving portion for receiving the lower end of the upright support bar is provided on the upper surface of the rear end portion of the tilt plate on both sides of the one-side loading platform, and a lock mechanism is provided between the upright support bar and the receiving portion. Is interposed.

According to a sixth aspect of the present invention, in the truck roof opening / closing mechanism according to the fourth aspect, the position of the guide bar between the guide member and the rear end frame is made of cloth or film material. The side sheet member is suspended so as to be movable in the front-rear direction with respect to the guide member, and the side surface of the upper space of the loading platform is opened and closed by the side sheet member.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

1 to 4 show a state in which a carrier opening / closing mechanism according to an embodiment of the present invention is applied to a four-wheel truck.
FIG. 9 to FIG. 9 are views showing in detail main parts of the carrier opening / closing mechanism of the embodiment.

In FIG. 1 to FIG. 4, the lorry 1 is divided into a cabin 1A including a driver's seat at a front portion and a carrier 1B at a rear portion. It is preferable that the bed 1B has a relatively short length LA and a small difference from the length LB of the cabin 1A. Tiltable "tilt plates" 3A and 3B are provided on both sides in the width direction of the loading platform 1B, and tiltable "tilt plates" 3C are also provided at the rear end of the loading platform 1B. Furthermore, a torii gate 5 having a substantially inverted U-shape in a vertical angle plane is provided at the forefront end (portion near the cabin 1A) of the loading platform 1B. The configuration so far is the same as that of a conventional general four-wheel truck.

The upper horizontal portion (upper side) 5 of the torii gate 5
A has a rod-shaped or pipe-shaped support frame 7 for supporting guide members 9A and 9B to be described later.
It is mounted horizontally along A by a bolt or a clamp mechanism (not shown). Guide members 9A and 9B are attached to the upper surfaces of both ends of the support frame 7, respectively. Each guide member 9A, 9B is provided with a guide rod 21 described later.
A, 21B are horizontally penetrated to guide the horizontal linear movement of the guide rods 21A, 21B along the front-back direction of the carrier 1B. And each guide member 9A, 9B
As shown in detail in FIGS. 5 and 6, a set of four rotatable wheels 13A to 13D that sandwich a guide rod 21A (21B) at an interval of 90 ° from the outside of the housing 11 is provided inside the housing 11. As a wheel group, two sets of wheel groups are used as guide rods 21A.
(21B) are arranged at intervals in the length direction.

On the other hand, a roof portion 15 is disposed above the loading platform 1B. FIG. 7 shows a skeleton portion of the roof portion 15, and FIGS. 8 and 9 show a sheet member portion. The roof portion 15 includes a front end frame 17 having a substantially isosceles triangle shape located at the front end of the loading platform 1B in a normal state (closed state), and a substantially isosceles triangular shape located at the rear end of the loading platform 1B in a normal state. An end frame 19 and two guide rods 21 bridged between the front end frame 17 and the rear end frame 19.
A, 21B and a central support bar 23, and a roof sheet member 2 made of a cloth or a membrane material forming a roof surface of the roof portion 15
5. Here, the guide rod 21
A and 21B are formed in the shape of a round bar or a round pipe, and are located near both ends in the width direction of the carrier 1B and above the upper surface level of the cabin 1A and are parallel to the length of the carrier 1B. And the central support bar 23 is
At the center in the width direction of the carrier 1B, the carrier 1B is disposed parallel to the length direction of the carrier 1B (accordingly, parallel to the guide bars 21A and 21B) and above the guide bars 21A and 21B. The guide rods 21A and 21B penetrate the guide members 9A and 9B as described above. The roof sheet member 25 covers the entirety of the front end frame 17, the rear end frame 19, the guide rods 21A and 21B, and the center support rod 23 so as to cover the roof inclined surfaces 25A and 25B, the front hanging portion 25C, the hanging portion 25D, and the side surface. Hanging parts 25E, 25F
Are continuously integrated. Here, the front end frame 17 is located forward of the upper side 5A of the torii gate 5 and the guide support frame 7, and is located above the upper surface level of the cabin 1A. The front hanging portion 25C of the roof sheet member 25 is also located forward of the upper side 5A of the torii gate 5.

Further, from the rear end frame 19, the loading platform 1B
Square pipe-shaped upright support rods 27A and 27B are provided which hang down toward the upper end surfaces of the tilting plates 3A and 3B on the side surfaces of the side plates. On the other hand, on the upper surfaces of the rear end portions of the side tilt plates 3A and 3B corresponding to the lower ends of the upright support bars 27A and 27B, FIG.
As shown in detail in FIG. 2, a short rectangular bar-shaped receiving portion 29 is provided, which protrudes upward, and the rectangular pipe-shaped upright supporting rods 27A and 27B are provided at the upper end of the receiving portion 29.
Portion 29 that is inserted into and removable from lower end opening 271 of
A is formed. And also the upright support rod 27
The lower ends of A and 27B and each receiving portion 29 are locked so as to be lockable and unlockable by a lock mechanism 30 such as a so-called patch lock. For example, each receiving part 29
The patchon lock body 30A is attached to the side surface of the main body, and the patchin lock body 3 is mounted on the lower side surface of the upright support rods 27A and 27B.
There is provided a receiving fitting 30C with which a latch 30B of 0A is engaged.

Further, the guide rods 21A, 21 of the roof portion 15
A side sheet member 35 made of cloth or a film material is suspended at a position between the guide members 9A and 9B and the rear end frame 19 in B. This side sheet member 35 is
As shown in FIG. 9, side surfaces 35A and 35B corresponding to side surfaces on both sides in the width direction in the upper space of the loading platform 1B, and the loading platform 1B.
A front part 35C corresponding to the front end of the upper space, that is, the front near the upper part of the torii 5 is formed integrally and continuously, and hooks and the like are provided on the upper edges of the side parts 35A and 35B of the side sheet member 35. Are mounted at intervals, and the hanger 37 is attached to the guide rods 21A, 21A.
Guide members 9A, 9B and rear end frame 19 in 21B
Are movably engaged in the length direction of the guide rods 21A and 21B.

The upper edge of the front surface 35C of the side sheet member 35 is attached to the upper edge of the torii gate 5 or the guide support frame 7. Also, from the horizontal bar portion 19A of the rear end frame 19 in the roof portion 15, for example, a left and right two-part curtain-shaped rear sheet member 3 made of cloth or film material
9A and 39B are suspended by a large number of suspenders 41 so as to be openable and closable.

In the embodiment described above, the roof 15 is attached to the carrier 1 during normal times, that is, during normal running and standby.
B is located at the rearmost end so as to cover the entire upper space of B, and the leading end reduced portion 29A of the receiving portion 29 is fitted into the lower end opening 271 of the upright support rods 27A, 27B, and the lock mechanism 30 is locked. Have been. The side surface portions 35A and 35B of the side sheet member 35 are in the most expanded state, and close the side surface side of the upper space of the carrier 1B. Note that the rear sheet members 39A and 39B are usually closed in many cases.

When loading and unloading cargo from the loading platform 1B, if it is necessary to release the entire upper space of the loading platform 1B, the lock mechanism 30 is first released, and the rear sheet members 39A and 39B are released. Then, the roof portion 15 is entirely moved forward. That is, the locking mechanism 30 is released and the rear part of the roof part 15 is slightly lifted, thereby pulling out the lower ends of the upright support members 27A and 27B from the front end reduced part 29A of the receiving part 29, and supporting the roof part 15 in that state. When pushed forward, the roof 15 moves as a whole forward while the guide rods 21A and 21B are guided by the guides 9A and 9B. That is, the roof 15 moves onto the cabin 1A. Also, at this time, as the roof portion 15 moves forward, the side surface portions 35A and 25B of the side sheet member 35 are pushed forward and contract. Roof 15
When the vehicle reaches its forward end, the roof 15 is located almost entirely on the cabin 1A, and the upper part of the upper space of the carrier 1B is almost completely opened. Also, the side portions 35A and 35B of the side sheet member 35 are also reduced to the front end of the bed 1B, so that the side surface of the upper space of the bed 1B is almost completely opened. FIG. 11 shows such a state.

When the space above the loading platform 1B is almost completely opened as described above, the external cargo is lifted by a crane or the like and loaded on the loading platform 1B, or conversely, the cargo on the loading platform 1B is lifted by the crane. Or take out cargo.

In loading and unloading cargo, the loading platform 1
When it is not necessary to open the entire upper space of B (when there is no need to open the upper part), the side sheet member 3
By pulling at least one of the side portions 35A, 35B forward, at least one of the two side surfaces of the upper space of the carrier 1B can be opened.

In the above embodiment, the upright support rods 27A, 27B hanging from the rear end frame 19 are configured such that the lower ends thereof are fitted to the receiving portions 29 on the side tilt plates 3A, 3B. Occasionally upright support bar 27
A rotatable wheel may be provided at the lower end of A, 27B, and the wheel may roll on the upper end of the side tilt plate 3A, 3B along the front-back direction.

Further, in the above embodiment, the guide rod 21
As guide members 9A and 9B for guiding A and 21B, four rotatable wheels 13A to 13D are used as one set of wheel groups, and two sets of wheel groups are used as guide rods 21A and 21B.
Although it is configured to be spaced apart in the length direction of B,
Depending on the case, only one set of wheels may be used, or three or more sets of wheels may be arranged at intervals in the length direction of the guide rods 21A and 21B. Also here 1
Although four wheels are used as a wheel group of the set, three wheels may be arranged at 120 ° intervals in some cases, and when the outer peripheral surface of the wheel is formed in a concave curved shape, Two wheels may be arranged to face each other. others,
The guide members 9A and 9B are not limited to the wheels as described above, and various bearing members can be used. However, if the above-described wheels are used, the guide members 9A and 9B can be manufactured at low cost.
Can be configured.

In the above-described embodiment, the rear sheet members 39A, 39B are provided to close the rear end of the upper space of the loading platform 1B. However, when it is not necessary to close the rear end, the rear sheet members 39A, 39B are provided. May be omitted.

[0027]

According to the luggage carrier roof opening / closing mechanism of the present invention, the upper part of the upper space of the luggage carrier can be almost completely opened, so that the loading and unloading of the cargo can be easily performed by a crane or the like. The upper part of the bed is opened by moving the roof part of the bed onto the cabin, so the number of parts can be reduced compared to the conventional bellows-shaped telescopic hood using X bars. Therefore, it is possible to obtain various effects such as low cost, light weight, easy opening / closing operation, and easy and easy assembling to existing freight vehicles. Can be.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a lorry to which a carrier opening / closing mechanism according to an embodiment of the present invention is applied.

FIG. 2 is a partially cutaway plan view of the truck of FIG. 1;

FIG. 3 is a vertical sectional side view taken along line III-III in FIG. 1;

FIG. 4 is a right side view taken along the line IV-IV in FIG. 1;

FIG. 5 is a cutaway front view showing a guide member and a guide rod used in the embodiment of FIG. 1;

6 is a longitudinal sectional view taken along line VI-VI in FIG.

FIG. 7 is a perspective view showing a skeleton portion of a roof in the embodiment of FIG. 1;

FIG. 8 is a perspective view showing a roof sheet member of a roof portion in the embodiment of FIG.

FIG. 9 is a perspective view showing a side sheet member in the embodiment of FIG. 1;

FIG. 10 is a partially cutaway front view showing, on an enlarged scale, an engagement portion between the upright support bar and the receiving member and a lock mechanism in the embodiment of FIG. 1;

FIG. 11 is a front view showing a state where a roof is opened in the embodiment shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Four-wheel truck 1A Cabin 1B Carrier 3A, 3B Side tilt plate 5 Torii 7 Support frame 9A, 9B Guide member 13A-13D Wheel 15 Roof part 17 Front end frame 19 Rear end frame 21A, 21B Guide rod 23 Center support rod 25 Sheet member 27A, 27B Upright support rod 29 Receiving part 30 Lock member 35 Side sheet member 37 Hanging tool

Claims (6)

[Claims] 1. A truck having a cabin and a loading platform, a roof portion is provided above the loading platform, and positions on the roof portion corresponding to both sides in the width direction of the loading platform are:
A guide bar is provided at a position higher than the cabin upper surface level along the front-rear direction of the truck, and a guide member for supporting and guiding the guide bars in the front-rear direction is provided above the torii gate at the front end of the truck. The roof is moved from a position above the carrier to a position above the cabin while guiding the guide rod by the guide member, thereby opening the upper space of the carrier. The opening and closing mechanism of the cargo truck roof. 2. The luggage carrier roof opening / closing mechanism according to claim 1, wherein a support frame is attached to a horizontal portion of an upper end portion of the torii gate along a length direction of the horizontal portion, and both end portions of the support frame. The guide members are fixed to each other, and each of the guide members is configured so that the respective guide rods pass through the center thereof, and sandwiches the outer peripheral surface of each of the guide rods.
A truck roof opening / closing mechanism for a lorry, comprising at least one rotatable wheel. 3. The luggage carrier roof opening / closing mechanism according to claim 2, wherein the three or more wheels sandwiching the outer peripheral surface of each guide rod as one set of wheel groups. A luggage carrier roof opening / closing mechanism for a lorry, wherein two or more wheel groups are provided at intervals in the front-rear direction of the guide rod. 4. The luggage carrier roof opening / closing mechanism according to claim 1, wherein the roof portion is located in front of the torii gate at the front end of the luggage carrier and is located at a position higher than the upper surface level of the cabin; And a rear end frame located at the rear end,
And the guide rod is bridged between the front end frame and the rear end frame, and a center support rod is bridged between the front end frame and the rear end frame at the center position in the width direction of the loading platform, and these Characterized in that a roof sheet member made of cloth or a membrane material is provided so as to cover the front end frame, the rear end frame, the two guide rods, and the center support rod of the truck. . 5. The luggage carrier roof opening / closing mechanism according to claim 4, wherein the rear end frame is provided with an upright support bar hanging down toward an upper surface of a swing plate on both sides of the luggage carrier. A receiving portion for receiving the lower end of the upright support bar is provided on the upper surface of the rear end portion of the lifting plate on both sides of the loading platform, and a lock mechanism is interposed between the upright support bar and the receiving portion. A cargo truck roof opening and closing mechanism characterized by the following. 6. The truck roof opening / closing mechanism according to claim 4, wherein a side sheet member made of cloth or a membrane material is provided at a position between the guide member and the rear end frame of the guide rod. A cargo car roof opening / closing mechanism, characterized in that it is suspended so as to be movable in the front-rear direction with respect to the vehicle, and that the side surface of the upper space of the carrier is openably closed by a side sheet member.