Storage box for tractor trucks and tractor trucks equipped with the same.

Abstract

To provide a stocker box which can sufficiently secure a rear field of view, especially, at the time of regression of a trailer truck, even in a stocker box for a large-sized tractor truck capable of obtaining a sufficient storage capacity.SOLUTION: There is provided a stocker box 1 is provided on a rear deck 27 between a cabin 23 in a tractor track T, and a coupler 28 for trailer connection, wherein a partition panel 11 is supported by using a frame 10 of a three-dimensional frame shape as a strength member to constitute a plurality of storage parts, a rear confirmation space S where a side periphery panel 11A is not arranged is provided at a height position of a rear window 25 at the rear part of the cabin 23 in a part opposite to a driving seat 23A, and two front and rear exposure column frames 10A and 10C are provided at positions visible in an overlapping manner from a driver viewpoint P of a driver in a rear confirmation posture in the driving seat 23A.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the equipment of a trailer truck, and particularly to a stocker box provided on a tractor truck for towing a trailer and a tractor truck equipped with the same.

Background Art

[0002] Trailer trucks play an important role in the logistics system. Among them, trailer trucks for transporting heavy goods such as heavy machine tools, large electrical equipment, and construction heavy machinery often operate with cargo handling equipment such as chain blocks, wire ropes for slinging, hydraulic jacks, and winches. In order to safely store such cargo handling equipment, recently, a large stocker box has been installed in the deck space between the cab of the tractor truck and the coupler, which is the connecting equipment of the trailer. Looking at the size of such a large stocker box, the width dimension is close to the vehicle body width dimension, and the height dimension is close to the cab height of the driver's seat, and there is a tendency to make the storage volume of various equipment sufficiently large.

[0003] By the way, when operating a trailer truck, especially when reversing, the driver performs a steering operation while visually grasping the position of the rear of the trailer. At this time, for domestic-specification tractor trucks, since the driver's cab is on the right side of the vehicle, when the trailer turns to the right and reverses, it is possible to confirm this from the door window on the right side of the driver's cab. On the other hand, when the trailer turns to the left and reverses, it cannot be confirmed from the left window of the cab, and since no image can be obtained even in the rearview mirror, the driver visually confirms the rear of the trailer from the central window behind the cab and performs the reversing operation.

[0004] Considering such an operating reality, when a large stocker box with a front projection area close to that of the driver's cab as described above exists at the rear, it is undeniable that it obstructs the view especially when reversing with a left turn. Incidentally, in the case of the large, heavy cargo mentioned above, the unloading area is not always wide enough to accommodate a large trailer truck, and is often extremely narrow. For this reason, reversing a trailer truck into the unloading area requires advanced driving skills, and therefore it is preferable that the left rear view is not obstructed as much as possible. Naturally, not only when reversing but also when driving forward on the road, the storage box must not obstruct the rear view confirmed by the rearview mirror (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Utility Model Publication No. 7-12319 [Patent Document 2] Special Publication 2010-530335 [Overview of the project] [Problems that the invention aims to solve]

[0006] This invention was made in consideration of the above background, and the technical challenge was to develop a storage box for a large tractor truck that provides sufficient storage volume, while also ensuring sufficient rearward visibility, especially when the trailer truck is reversing. [Means for solving the problem]

[0007] In other words, the storage box for a tractor truck described in claim 1 is a storage box provided on the rear deck between the cabin and the coupler for connecting a trailer in a tractor truck, wherein the storage box has a three-dimensional frame-shaped frame as a strength member, to which partition panels are supported, and which constitutes multiple storage compartments, and furthermore, a rearward viewing space is provided at the height of the rear window behind the cabin, on the side opposite the driver's seat, where no side panels are provided, and furthermore, the two exposed column frames at the front and rear that are visible in the rearward viewing space and obstruct the rearward view are provided in a position where they overlap when viewed from the perspective of a driver in a rearward viewing position in the driver's seat.

[0008] Furthermore, the storage box for a tractor truck according to claim 2 is characterized in that, in addition to the above requirements, the confirmation support flat panel that constitutes the lower surface of the rear confirmation space is configured to be in a downward sloping state towards the rear.

[0009] Furthermore, the storage box for a tractor truck according to claim 3 is characterized in that, in addition to the above requirements, the projected outer shape of the storage box in the front-rear direction does not protrude from the projected outer shape of the cabin in the front-rear direction.

[0010] Furthermore, the tractor truck described in claim 4 is A tractor truck equipped with a storage box on the rear deck between the cabin and the coupler for connecting the trailer, The aforementioned storage box uses a three-dimensional frame-like structure as a structural member to support compartment panels, forming multiple storage compartments. Furthermore, a rearward viewing space is provided at the height of the rear window behind the cabin, opposite the cockpit, where no side panels are provided. In addition, the two front and rear exposed column frames, which are visible in the rearward viewing space and obstruct the rearward view, are positioned so that they overlap when viewed from the perspective of the pilot in a rearward viewing position in the cockpit. It is characterized by the fact that...

[0011] Furthermore, the tractor truck described in claim 5, in addition to the requirements described in claim 4, The confirmation support flat panel that constitutes the lower surface of the rear confirmation space in the aforementioned storage box is characterized by being configured to be in a downward sloping state towards the rear.

[0012] Furthermore, the tractor truck described in claim 6 is, in addition to the requirements of either claim 4 or 5, The aforementioned storage box is characterized in that its projected outer shape in the front-rear direction does not protrude from the projected outer shape of the cabin in the front-rear direction. The aforementioned problems are then addressed by means of the requirements described in each of these claims. [Effects of the Invention]

[0013] First, according to the invention described in claim 1 or 4, a stock box that tends to obstruct the rear view is provided behind the cab of the tractor truck. However, a rear confirmation space is provided in the stock box, and two column frames that would create blind spots in the rear view are arranged so as to visually overlap into one. As a result, even when the trailer is bending backward, a sufficient guaranteed field of view can be obtained, and the operator can sufficiently confirm the rear of the trailer.

[0014] Also, according to the invention described in claim 2 or 5 a flat panel that tends to obstruct the rear view is provided behind the cab of the tractor truck. However, a rear confirmation space is provided in the stock box, and the flat panel that would create blind spots in the rear view is in an inclined state with a downward slope at the rear. As a result, even when the trailer is bending backward, a sufficient guaranteed field of view can be obtained, and the operator can sufficiently confirm the grounding position of the rear wheels of the trailer.

[0015] Also, according to the invention described in claim 3 or 6 a stock box that tends to obstruct the rear view is provided behind the cab of the tractor truck. However, the projected outer shape in its front-rear direction is formed so as not to protrude from the projected outer shape in the front-rear direction of the cab, and it does not obstruct the rear view by the rearview mirror during forward travel.

Brief Description of the Drawings

[0016] [Figure 1] It is a perspective view showing the stock box of the present invention and a tractor truck equipped with the same, and an explanatory view showing the state of ensuring the field of view. [Figure 2] [[ID=2 + 4]]It is a perspective view showing the stock box. [Figure 3] It is a side view showing the stock box provided on the rear deck between the cab of the tractor truck and the coupler for connecting the trailer, and the operator's viewpoint. [Figure 4] It is a rear view showing the stock box. [Figure 5] It is a plan view showing a stock box, a tractor truck equipped with the same, and the operator's viewpoint. [Figure 6] It is a side view showing a stock box, a tractor truck equipped with the same, and the operator's viewpoint. [Figure 7] It is an explanatory view showing the imaging state by the left and right rear view mirrors provided on the tractor truck. [Figure 8] It is a perspective view showing the mounting state of the stock box including the rear confirmation space and a perspective view showing the rear field of view state from the driver's seat.

Mode for Carrying Out the Invention

[0017] The embodiments of the present invention take the following-described examples as examples of preferred embodiments and also include various modified examples within the technical idea of the present invention.

Examples

[0018] Hereinafter, the present invention will be specifically described based on the illustrated examples. The stock box 1 for the trailer truck T of the present invention (hereinafter referred to as the stock box 1) is installed on the tractor truck 2 which is the towing vehicle of the trailer truck T and stores necessary cargo handling equipment and the like. And this stock box 1 is characterized by having a rear confirmation space S for ensuring a sufficient rear view, particularly the left rear view, which is indispensable in the operation of the trailer truck T.

[0019] First, before a detailed description of the stock box 1, a trailer truck T composed of a tractor truck 2 and a trailer 3 towed by the same will be outlined.

[0020] First, the tractor truck 2 has a chassis (not shown) as its basic frame, and is equipped with an engine (not shown), front running wheels 20, rear drive wheels 21, and a cabin 23 as its main components. For example, in the case of a domestic specification vehicle, i.e., a vehicle for left-hand traffic, the cabin 23 is equipped with a driver's seat 23A on its right side. The cabin 23 is equipped with side windows 24 above the left and right doors, a rear window 25 at the rear, and rearview mirrors 26 on the front left and right. Behind the cabin 23 is a rear deck 27, and further behind that is a coupler 28 for connecting the trailer 3. Of course, in addition to these, the trailer 3 is equipped with control systems such as air piping, hydraulic piping, and electrical piping.

[0021] Meanwhile, the trailer 3 has a cargo bed 30 as its main component, with trailer wheels 31 at the rear and a kingpin 32 at the front that connects to the coupler. As shown in Figure 1, the cargo bed 30 has cargo 35 loaded in its center. In the embodiment shown in Figure 1, a flat-deck type cargo bed 30 is disclosed. However, for a trailer truck T intended for heavy cargo 35, a low-floor type cargo bed 30, where the central part is lowered towards the road surface, is also preferable. Incidentally, by adopting this low-floor configuration, even if the height dimension of the cargo 35 is high, it is possible to ensure that the legally permissible height limit during operation is not exceeded.

[0022] The operation of such a trailer truck T, particularly when reversing, will be briefly explained. When the trailer 3 turns to the left and reverses, the left rearview mirror 26 shows the rear of the trailer 3 at the beginning of the turn, and the driver can confirm this. However, as the turning angle increases, the rear position of the trailer 3 can no longer be visually confirmed by the rearview mirror 26. Therefore, in this state, the driver operates the steering while checking the position of the trailer wheels 31 at the rear of the trailer 3 from the rear window 25 of the tractor truck 2's cabin 23. Various configurations are adopted for the stocker box 1 of the present invention so as not to interfere with such operation.

[0023] The storage box 1 will now be described. The storage box 1 is box-shaped overall, and for example, its width is close to the width of the cabin 23, and its height is also close to the height of the cabin 23. In terms of its construction, given that cargo handling equipment and the like are quite heavy, a frame 10 made of appropriate metal materials is constructed in a three-dimensional frame shape as a structural member, and partition panels 11 are attached to it to support it, creating an appropriate number of storage compartments (lower storage compartment 13, middle storage compartment 14, upper storage compartment 15).

[0024] The frame 10 is generally a three-dimensional frame that forms the outer shape of the storage box 1, and is further constructed by combining beam-shaped frames and columnar frames in a shelf-supporting manner to form the storage section. Of the components of this frame 10, only those components involved in the rear confirmation space S, which is a characteristic part of the present invention, are given reference numerals. Specifically, the exposed column frame 10A at the front center of the position surrounding the rear confirmation space S, the exposed column frame 10B on the front outer side, and the exposed column frame 10C on the rear outer side of the three frames 10 are given reference numerals.

[0025] The partition panel 11 supported by the frame 10 consists of multiple vertically arranged side panels 11A and multiple flat panels 11B that constitute the floor or ceiling of the storage area, thereby forming multiple storage areas. In particular, in the area related to the rear viewing space S, side panels 11A are provided in the central part of the area surrounding the space of the rear viewing space S, while side panels 11A are not provided on the other three sides, namely the front, rear, and sides. As a result, the rear viewing space S is effectively formed by not providing the side panels 11A in this way.

[0026] Furthermore, of the two flat panels 11B that constitute the rear confirmation space S, the lower flat panel is configured as a confirmation support flat panel 11S, tilted downwards towards the rear. In this embodiment, this confirmation support flat panel 11S is equipped with an openable and closable hatch to allow access to the lower box storage section 13A below it. Furthermore, for the side panels 11A that constitute both sides of the storage box 1, the area from the center upwards is designated as a side inclined section 11C, which is inclined to narrow upwards. This configuration ensures that the projected outer shape of the storage box 1 in the front-rear direction does not extend beyond the projected outer shape of the cabin 23 of the tractor truck 2 in the front-rear direction.

[0027] Next, the storage compartment in the storage box 1 equipped with such a rearward viewing space S will be further described. The rearward viewing space S is located at the height of the rear window 25 of the cabin 23, and a lower storage compartment 13 is provided below it. This lower storage compartment 13 has lower box storage compartments 13A on the left and right sides, surrounded by side panels 11A, and the central part is left open to form an open storage compartment 13B. Above this open storage section 13B, a guide duct 13C is provided, which is used to support and arrange control system piping, wiring, etc., from the tractor truck 2 to the trailer 3.

[0028] Above this lower storage section 13 is the middle storage section 14. In the middle storage section 14, a middle box storage section 14A is provided on the side of the cockpit 23A, and as an example, an open tray section 14B is provided using a part of the rearward viewing space S closer to the driver's seat.

[0029] Furthermore, an upper storage section 15 is provided above the middle storage section 14, and in the upper storage section 15, an upper box storage section 15A is appropriately partitioned and formed across the entire width. Above this upper storage section 15, an open-top cargo bed 16 is provided.

[0030] The present invention has the configuration described above, and various cargo handling equipment is loaded onto a tractor truck 2 using this storage box 1 for transporting cargo. First, when driving forward on a normal road, as shown in Figure 8(a), the side perimeter panel 11A of the compartment panel 11 including the frame 10 has a side sloping portion 11C that tapers upwards and does not protrude from the cabin 23. Therefore, the trailer is operated without the stocker box 1 obstructing the image projected by the rearview mirror 26 installed in the cabin 23. As a result, as shown in Figure 7, the rearview mirror 26 projects a sufficient image of the rear of the trailer 3 and its cargo 35 during operation.

[0031] For example, as shown in Figure 1, when the trailer truck T is moved backward to the unloading position at the destination, as described above, the rear of the trailer 3 is initially checked with the left rearview mirror 26 when the turning angle of the trailer 3 increases. As the turning angle of the trailer 3 increases, the image from the rearview mirror 26 can no longer capture the rear of the trailer 3, while the rear of the trailer 3 can be seen from the driver's viewpoint P through the rear window 25.

[0032] As shown in Figure 5, of the exposed column frames 10A, 10B, and 10C, the front-side exposed column frame 10B is originally outside the field of view through the rear window 25, but the front-center exposed column frame 10A and the rear-side exposed column frame 10C obstruct the driver's field of view. However, in this invention, the front-center exposed column frame 10A and the rear-side exposed column frame 10C overlap exactly when viewed from the driver's viewpoint P, as shown in Figure 8(b). As a result, even though there are two exposed column frames 10A and 10C that could potentially obstruct the field of view, it is as if only one column frame were obstructing the view, and a sufficient field of view V is obtained. Consequently, the driver can reverse with almost no inconvenience when steering.

[0033] Furthermore, at this time, the confirmation support flat panel 11S, which is one of the flat panels 11B that form the floor surface of the rear confirmation space S, is tilted downwards towards the rear, ensuring a sufficient field of view V is obtained in this area as well, thus avoiding obstruction to the operator's rearward confirmation. Thus, the present invention provides sufficient storage space for cargo handling equipment and the like using the storage box 1, while also ensuring that driving operations, especially when reversing, are not hindered. Incidentally, as already mentioned, such a storage box 1 is useful for trailer trucks T that transport heavy loads, but it goes without saying that it can also be applied to tractor trucks in other general logistics trailer trucks. 。 [Explanation of Symbols]

[0034] T Trailer Truck S Rearward viewing space P (Pilot's View) V-shaped field of view 1 storage box 10 frames 10A Exposed column frame (front center) 10B Exposed column frame (front and side) 10C Exposed column frame (rear side) 11 partition panels 11A Side Panel 11B Flat Panel 11S Confirmation Support Flat Panel 11C Side slope 13 Lower storage compartment 13A Lower box storage section 13B Open storage compartment 13C Guide Duct 14 Middle storage compartment 14A Middle box storage section 14B Open Tray Section 15 Upper storage compartment 15A Upper box storage section 16. Open top cargo bed 2 tractor trucks 20 wheels 21 Rear wheel 23 Cabins 23A Cockpit 24 Side windows 25 Rear window 26 Rear view mirror 27. Rear deck 28 Couplers 3 Trailers 30 cargo bed 31 Trailer Wheels 32 Kingpin 35. Cargo

Claims

1. A storage box provided on the rear deck between the cabin and the coupler for connecting a trailer in a tractor truck, This storage box for a tractor truck is characterized by having a three-dimensional frame as a structural member to which partition panels are supported, forming multiple storage compartments, and having a rearward viewing space at the height of the rear window behind the cabin, on the side opposite the driver's seat, where no side panels are provided, and furthermore, the two exposed column frames at the front and rear that are visible in the rearward viewing space and obstruct the rearward view are positioned so that they overlap when viewed from the perspective of the driver in a rearward viewing position in the driver's seat.

2. The storage box for a tractor truck according to claim 1, characterized in that the confirmation support flat panel that constitutes the lower surface of the rear confirmation space is configured to be in a downward sloping state towards the rear.

3. The storage box for a tractor truck according to claim 1 or 2, characterized in that the projected outer shape of the storage box in the front-rear direction does not protrude from the projected outer shape of the cabin in the front-rear direction.

4. A tractor truck having a storage box on the rear deck between the cabin and the coupler for connecting a trailer, The aforementioned storage box is characterized in that it has a three-dimensional frame-like structure as a structural member, to which partition panels are supported, thereby forming multiple storage compartments, and a rearward viewing space is provided at the height of the rear window behind the cabin, on the side opposite the driver's seat, where no side panels are provided, and furthermore, the two front and rear exposed column frames that are visible in the rearward viewing space and obstruct the rearward view are positioned so that they overlap when viewed from the perspective of the driver in a rearward viewing position in the driver's seat.

5. The tractor truck according to claim 4, characterized in that the confirmation support flat panel that constitutes the lower surface of the rear confirmation space in the storage box is configured to be in a downward sloping state towards the rear.

6. The tractor truck according to either claim 4 or 5, characterized in that the projected outer shape of the storage box in the front-rear direction does not protrude from the projected outer shape of the cabin in the front-rear direction.

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