JPS60236831A - Truck hood opening and closing mechanism - Google Patents

Abstract

PURPOSE:To enable loading and unloading of freight from the side of a rear body using a fork lift by providing a driving device for rotating a frame body toward the upper outside of said hood at a certain angle. CONSTITUTION:Frame bodies 10, 10 consisting of an upper frame 10U and a lower frame 10D formed by pipe members are vertically rotatably installed to, and supported by, the lateral frames 8 and lateral rods 8 of a frame 6. And, a covering 11 consisting of water proof sheet is put over the top of the frame 6 down to the upper parts of the side side-drop doors 4, 4 and the rear side-drop door of the rear body 1, forming a hood H. An opening and closing driving device 13 which is fixed to the right and left inside surfaces of a front guard frame 3 and which rotates and lifts the upper frame 10U toward the upper outside of the hood H, is connected to the upper frame 10U. The motor 14 of the device 13 is operated, and a rotary arm 15 fixed to its rotary shaft 14a is turned at a required angle, to make the covering 11 to be folded double, up and down, at the connecting part between the upper and lower frames 10U, 10D and opened.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a truck hood opening/closing mechanism for opening/closing a hood, which is constructed by covering a frame such as a waterproof sheet on a frame attached to the cargo bed of a trunk. .

[Prior art and its problems]

Trucks are generally equipped with the above-mentioned hood to protect the cargo loaded on the loading platform from rain and direct sunlight.

By the way, such a conventional canopy is constructed by covering an arch-shaped frame built into the truck bed, and when loading and unloading cargo, the cover is manually placed to close the rear side of the truck bed. The top is opened by rolling it up into a roll from its lower end.

However, this system has the disadvantage that the canopy must be opened and closed manually when loading and unloading cargo, and that opening and closing alone requires a great deal of labor and time. Particularly in the case of large trunks, it is very difficult to roll up the cover, which is an extremely serious drawback.

Furthermore, since the frame is formed in an arch shape as described above, it is not possible to load and unload cargo from the side of the cargo platform, and therefore, loading and unloading using a forklift or the like is not possible, so the work must be done solely by human power. However, the loading and unloading work itself was very labor intensive and time consuming.

In view of these circumstances, an automatic opening/closing device has been proposed as a prior art that fully opens the hood by folding and moving the above-mentioned arch-shaped frame toward the driver's seat of the truck (Japanese Patent Application Laid-Open No. 57-1998). (See Publication No. 182537).

However, with this method, the rails and rail mounting posts that guide and slide the frame are installed horizontally on the side of the truck bed, so even if the side tilt of the cargo bed is opened, these rails and rail mounting posts will get in the way. This poses a problem when loading and unloading cargo, and at the same time, the top of the hood is also open, so loading and unloading operations in rainy weather can result in the loaded cargo getting wet, which is a serious drawback.

[Purpose of the Invention] Therefore, the present invention is capable of automatically opening and closing the sides and/or rear part of the canopy while leaving most of the canopy. The main purpose is to provide a truck hood opening/closing mechanism that does not wet the loaded cargo even when work is carried out in the rain.In particular, if it is applied to the side opening/closing of the hood, a forklift etc. can be used from the side of the loading platform. This provides a new hood opening/closing mechanism that enables loading and unloading of cargo.

[Structure of the invention]

In order to achieve this object, the present invention provides a truck hood opening/closing mechanism for opening and closing a hood, which is constructed by covering a frame framed on a truck bed, with an upper end attached to the side and/or rear of the hood. is rotatably supported with respect to the frame to fold the cover in half and lift the cover, and a drive device for rotating the frame by a predetermined angle toward the outside and upward of the canopy. It is characterized by being arranged.

〔Example〕

Hereinafter, the present invention will be explained based on specific embodiments shown in the drawings.

FIG. 1 is a side view of a truck to which a hood opening/closing mechanism according to the present invention is applied, and FIG. 2 is a view from the rear thereof.

In the figure, reference numeral 1 denotes a truck platform in which a torii gate 3, a side tilt 4.4, and a rear tilt 5 are arranged so as to surround the four sides of a floor plate 2.

, 6 are pillars 7.7 erected at the rear corners of the floor plate 2 of the loading platform 1, horizontal rods 8, 8 horizontally installed from the upper ends of the pillars 7.7 to the torii gate 3, and A frame constructed from a plurality of arch-shaped pipes 9, 9, . . . installed at required intervals along the longitudinal direction between the horizontal rods 8,
Frame bodies 10 and 10 each consisting of an upper frame 10U and a lower frame 10D formed with pipes on the horizontal rods 8 and 8 of the frame 6, respectively.
is mounted and supported so that it can rotate up and down.

Then, from above the frame 6, the side tilt 4 of the loading platform 1,
4 and the upper part of the rear tilt 5 consists of a waterproof sheet, etc. 11, a hood H is formed.

The frame lO is formed to have approximately the same length as the side shifter 4 so as to close the opening between the horizontal rod 8 and the side hinge 94, and has an upper frame 10U and a lower frame 10D that constitute the frame 10. are connected to each other by bush pipes 12, 12-, etc., and are vertically foldable.

A driving device 13 is connected to each upper frame 10U, which is fixed to the left and right inner surfaces of the torii gate 3, respectively, and rotates the upper frame 10U to the outside and upward of the hood H.

That is, the drive device 13 is a changeover switch (not shown) that is fixed to the torii gate 3, is driven by a car battery of a truck, and is disposed inside the driver's seat or on a support 7 of the loading platform 1.
It is composed of a motor 14 that can be rotated in forward and reverse directions by the operation of , and a rotating arm 15 that is fixed to a rotating shaft 14a of the motor 14 and can be rotated.The tip of the rotating arm 15 is connected to the torii of the upper frame 10U A double lever mechanism is rotatably connected to the inner side of the third end and has the upper frame IQU as a driven joint.

In the figure, reference numeral 16 denotes a mounting bracket that rotatably attaches and supports the upper end of the upper axle 10U to the horizontal rod 8, and 17 denotes a side tilting member 4.
18 is a hook that is fixed to the side tilt 4 and rear tilt 5 and hooks the lower end of the cover 11 of the hood H.

The above is an example of the configuration of the hood opening/closing mechanism according to the present invention, and the operation thereof will be explained next.

Normally, as shown in FIG. 1, the lower end of the cover 11 of the top H is hung on each hook 18, 18, etc. fixed to the side tilt 4 and rear tilt 5 of the cargo platform 1. be.

When loading and unloading cargo, first remove the lower end of the cover 11 from each of the hooks 18, 18, . The motor 14 is operated, and the motor 1
4 is rotated in the forward direction, and the rotating arm 15 fixed to the rotating shaft 14a is rotated by a required angle clockwise as seen in FIG.

As a result, the upper frame 10U of the frame body 10 connected to the tip of the rotary arm 15 is rotated by a required angle upward on the outside of the hood H using the horizontal rods 8 of the frame 6 as a fulcrum, and is placed over the frame body 10. The covered cover 11 is vertically folded in half at the joint between the upper frame 10tJ and the lower frame 100, and is lifted as shown by the chain line in FIG. 2 to open the sides of the top H.

Thereafter, the tilt latch 17.17 is removed, the side tilt 4 is opened, and the sides of the cargo platform 1 are also opened.

As described above, by applying the canopy opening/closing mechanism according to the present invention, the sides of the canopy H can be automatically opened upward by a relatively simple means, and the horizontal rods 8 of the frame 6 and the floor plate 2 of the cargo platform 1 can be opened upward. Since the gap is completely opened, cargo can be loaded and unloaded quickly and easily using a forklift or the like without manual effort. Furthermore, since the top of the canopy H is not opened at this time, the cargo can be protected from heat even in rainy weather.

When the loading and unloading work of the cargo is completed, the changeover switch is operated to reversely rotate the motor 14 and rotate the rotating arm 15 in the counterclockwise direction.
is rotated downward to return to the original position where the upper frame 10U and lower frame 10D are vertically connected.

In the above embodiment, a case has been described in which the frame lO is formed by connecting the upper frame 10U and the lower frame 10D in two consecutive stages, but the present invention is not limited to this, and as shown in FIG. It is also possible to configure the frame body 10° by omitting the lower frame 10D.

Further, the drive device 13 is not limited to the case where the motor 14 is used as described above. For example, as shown in FIG. ', the piston rod 21 is expanded and contracted, and the frame 10
” may be used to rotate the device up and down, and any drive device can be used.

Furthermore, a frame body 10. which is opened and closed by this drive device 13.
It goes without saying that 10' can be disposed not only on the sides of the top H but also on the rear thereof.

Next, FIGS. 4 and 5 are diagrams showing an example in which the drive device 13 is disposed outside the hood H, and the motor 14 with the drive value W13 is connected to the upper outer surface of the torii 3 on the driver's seat side. Fixedly installed in
A drive device 13 excluding the motor 14 is disposed above the torii gate 3.

That is, a stainless steel plate 22 and a plywood plate 23 are attached to the outer and inner surfaces of the torii gate 3, respectively, and the motor 14 of the drive device 13 is fixed to the outside and side of the stainless steel plate 22.
A drive device 13 excluding the motor 14 is housed in a space formed between the stainless steel plate 22 and the plywood plate 23.

The drive value W13 is determined by a rotary arm 24 fixed to the rotating shaft 14a of the motor, a lever 25 whose lower end is supported by the torii 3, and a lever 25 rotatably connected to the upper end of the lever 25. ''-shaped arm 26, a dual lever mechanism is formed in which the rotating arm 24 is the driving link and the lever 25 is the driven link, and the tip of the arm 26 is bored into the upper side of the torii gate 3. A four-joint rotating chain mechanism is rotatably connected to the inside of the end of the upper frame 10U on the bird M3 side through the provided opening 27, and has the lever 25 as the driving link and the upper frame 101J as the driven link. It is formed.

Therefore, in the right drive device 13 shown in the 5th m, if the motor 14 is rotated in the normal direction and the rotating arm 24 is rotated clockwise, the lever 25 can also be rotated clockwise, so that the upper frame 10U is rotated through the arm 26 to the outside and above the top H by a required angle using the horizontal rod 8 of the frame 6 as a fulcrum,
The cover 11 that covers the frame body 10 is an upper frame 10U and a lower frame 10D.
It will be opened by being folded in half vertically from the connecting part.

Further, 27 is a shock absorber connected to the tip of the rotating arm 24 so as not to cause an impact due to its own weight when the frame 10 is opened and closed, especially when it is closed.

As described above, according to this embodiment, since the drive device 13 is disposed outside the canopy H, the drive device 13 does not get in the way when loading and unloading cargo, and the rotating portion of the drive device 13 There is no possibility that grease or the like will stain the luggage (furthermore, the drive device 13 will not be compressed by the loaded luggage and the opening/closing of the canopy H will not be obstructed, so the internal space of the canopy H can be used effectively). It has excellent effects.

In addition, as shown in FIGS. 4 and 5, if the horizontal rods 8 of the frame 6 are installed close to a large part of the top H, and the height of the arched pipe 9 is made as low as possible, the sides of the top H can be completely covered. This has the effect of making it easier to load and unload cargo.

[Operation and effect of the invention]

As described above, the hood opening/closing mechanism according to the present invention automatically opens the hood by rotating the frame bodies disposed at the sides and/or the rear of the hood upward and outward of the hood using a drive device. Since the cover is folded in half and lifted to open, it can be opened and closed easily and quickly, making loading and unloading work much faster than before. effective.

In addition, the structure is simple and can be manufactured at a very low cost, and at the same time, it can be easily used on existing canopies by simply modifying it by attaching the frame and drive device. There is an excellent effect that can be done.

Further, unlike conventional canopy opening/closing mechanisms, there is no need to open the top of the canopy, so cargo can be protected from heat even during cargo loading and unloading operations in rainy weather.

In addition, especially if the hood opening/closing mechanism according to the present invention is applied to the sides of the hood, loading and unloading can be carried out using a forklift or the like without relying on human power, and in the case of large trucks, cargo can be loaded and unloaded. This has the excellent effect of mechanizing the process, significantly reducing the labor involved, and at the same time significantly reducing the working time.

In addition, when applied to small liquor delivery trucks that frequently take in and take out cargo, or small trunks for mobile stores loaded with vegetables, fruits, etc., the hood can be easily opened and closed, and the cargo can be kept warm at both ends. This is particularly convenient as it provides protection from direct sunlight.

[Brief explanation of the drawing]

Fig. 1 is a side view of a trunk to which the hood opening/closing mechanism according to the present invention is applied, Fig. 2 is a view seen from the rear thereof, and Fig. 3 is an explanatory diagram of essential parts showing another example of the hood opening/closing mechanism according to the present invention. , FIG. 4, and FIG. 5 are a side view and a rear view of main parts showing still other examples. Explanation of symbols l-・Truck bed, 2-・floorboard, 3-torii, 4-
Side tilt, 5-rear tilt, H-hood, 6-frame,
7-post, 8--horizontal rod, 9--arch pipe, 1
0.10'-11c, 10 U-4 frame, l0D-bottom frame,
11-cover, 12-bush pipe, 13-.-drive device,
14-motor, 14a-motor rotating shaft, 15-rotating arm, 20-hydraulic cylinder, 21-piston rond. Patent Applicant: Oshima Cargo Co., Ltd. Procedural Report (spontaneous) June 22, 1980 Manabu Shiga, Director General of the Patent Office1, Indication of the Case 1982 Patent Application No. 918552, Name of the Invention Truck Top Opening/closing mechanism 3, relationship with the case of the person making the amendment Patent applicant address: 31 persons, 269 Oaza Hirano, Towa-cho, Oshima-gun, Yamaguchi Prefecture
Name Oshima Cargo Co., Ltd. 4, Agent Address: 150 6o Subject of amendment (11 Full text of specification (2) Drawings (Fig. 3) 7. Contents of amendment amended as per the attached specification and drawings. Description 1 , Title of the invention: Truck hood opening/closing mechanism 2, Claims: (1) A hood formed of a pipe member on the sides and/or rear of the hood, which is constructed by covering a frame framed in the truck bed. In a truck hood opening/closing mechanism, wherein a frame body has its upper end rotatably attached to and supported by the frame, and the frame body is lifted together with the cover placed thereon to open and close the hood. , the frame body is composed of an upper frame and a lower frame that are vertically foldably arranged in series, and
An opening/closing drive device for rotating the upper frame by a required angle is provided,
Opening/closing of a truck top, characterized in that the opening/closing driving device is configured to approximately fold the cover placed on the frame body in two and lift it up to open the side and/or rear part of the top. mechanism. (2) The opening/closing drive device is composed of an electric morph and a rotating arm that is fixed to the rotating shaft of the electric motor and can be rotated, and the tip of the rotating arm is rotatably connected to the upper frame. A trunk top opening/closing mechanism according to claim 1. (3) The opening/closing drive device includes a hydraulic cylinder rotatably disposed on the torii of the loading platform, and a tip of a piston rond of the hydraulic cylinder is rotatably connected to the upper frame. A trunk hood opening/closing mechanism according to claim 1. -3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a truck hood opening/closing mechanism for opening/closing a hood, which is formed by covering a frame such as a waterproof sheet on a frame attached to the cargo bed of a trunk. [Prior art and its problems] Trunks are generally equipped with the above-mentioned hood to protect the cargo loaded on the cargo platform from rain and direct sunlight. Conventional canopies like this are constructed by covering an arch-shaped frame built into the truck bed, and when loading and unloading cargo, the rear side of the truck bed is manually closed off. The top is opened by rolling up the cover from its lower end into a roll. However, according to this method, the top must be opened and closed manually when loading and unloading cargo, which requires a great deal of effort and time, especially for large trucks. It was extremely difficult to even do the work. In addition, since the entire frame is formed in an arch shape as described above, it is not possible to load and unload cargo from the side of the cargo platform. Therefore, for example, loading and unloading using a forklift or the like is not possible, and therefore only manual labor is required. There was no recourse, and the loading and unloading work itself was extremely hard work and time consuming. In view of these circumstances, an automatic opening/closing device has been proposed as a prior art that fully opens the hood by folding and moving the above-mentioned arch-shaped frame toward the driver's seat of the truck (Japanese Patent Application Laid-Open No. 57-1998). (See Publication No. 182537). However, according to this method, the rails and rail mounting posts that guide and slide the frame are installed horizontally on the side of the trunk loading platform, so even if the side tilt of the loading platform is opened, these rails and rail mounting columns will get in the way. At the same time, since most of the canopy is open, the loaded cargo becomes hot during loading and unloading operations in rainy weather, which is a serious drawback. Another drawback was that the frame was easily damaged due to cargo being caught in the expandable frame. Further, as another conventional technique, Utility Model Application No. 5S-I. As described in Publication No. 4723, a side frame made of a pipe member shaped to cover the side of the truck bed is rotatably attached to a fixed frame framed on the bed of a truck, and the side frame is manually moved upward. A top opening/closing device has been proposed which is configured to be lifted to open the top. However, with this method, it is possible to load and unload cargo using a forklift, etc., and there is no need to worry about the cargo heating up in the rain. Since it has a structure that can be opened and closed by rotating upwards, it requires a very wide space for opening and closing the canopy, and the tips of the side frames can become obstacles when loading and unloading in narrow alleys crowded with houses. It had a serious defect in that the hood could not be opened if it was hit. Therefore, this method can only be used for the hoods of small trucks whose side frames can be opened and closed sufficiently by hand, and cannot be used for the hoods of large cargo trucks whose side frames are so large that it is difficult to open and close them manually. I didn't get it. [Object of the Invention] Therefore, the present invention is capable of automatically opening and closing the sides and/or rear part of the canopy while leaving the top part of the canopy, thus facilitating loading and unloading of cargo using a forklift or the like.
At the same time, even if the work is carried out in the rain, the loaded cargo will not get wet, and even when loading and unloading work in narrow alleys, the space required to open and close the canopy is extremely small, especially for large The purpose of this invention is to provide a hood opening/closing mechanism suitable for cargo trunks. [Structure of the Invention] In order to achieve the above object, the present invention includes a frame body formed of a pipe member on the side and/or rear part of a canopy that covers a frame framed on the bed of a truck. In the truck hood opening/closing mechanism, the top end of the truck hood is rotatably attached to and supported by the frame, and the hood is opened and closed by lifting the frame together with the cover placed thereon. The body is composed of an upper frame and a lower frame that are connected to each other so that they can be folded up and down, and an opening/closing drive device is provided to rotate the upper frame by a required angle, and the opening/closing drive device covers the frame body. The hood is characterized in that the hood is folded approximately in half and lifted to open the sides and/or rear of the hood. [Examples] The present invention will be described below based on specific examples shown in the drawings. FIG. 1 is a side view of a truck showing an example of the hood opening/closing mechanism according to the present invention, and FIG. 2 is a view from the rear thereof. In the figure, reference numeral 1 denotes a truck loading platform in which a torii gate 3, side tilts 4, 4, and a rear tilt 5 are arranged so as to surround the four sides of a floor plate 2. Reference numerals 6 denote pillars 7.7 erected at the rear corners of the floor plate 2 of the loading platform 1, horizontal rods 8.8 horizontally installed from the upper ends of the pillars 7 and 7 to the torii gate 3; A frame made up of a plurality of arch-shaped pipes 9.9 and 9 installed at required intervals along the longitudinal direction between the horizontal rods 8 and 8,
A frame body 10.1 consisting of an upper frame 10U and a lower frame 10D formed of pipe members on each side rod 8 and 8 of the frame 6, respectively.
0 is mounted and supported so as to be rotatable in the vertical direction. Then, from above the frame 6, the side tilt 4 of the loading platform 1,
A canopy H is formed by covering the upper parts of the 4 and rear tilt 5 with a cover 11 made of a waterproof sheet or the like. Each frame 10 is formed to have approximately the same length as the side tilt 4 so as to cover the opening between the horizontal rod 8 and the side tilt 4, and includes an upper frame 10U and a lower frame that constitute the frame 10. 10D are rotatably connected to each other by bush pipes 12, 12-, etc., and the frame 10 is approximately divided into upper and lower halves so as to be foldable. Opening/closing drive devices 13 are connected to each upper frame 10U, which are fixed to the left and right inner surfaces of the torii gate 3, respectively, and rotate and lift the upper frame 10U outwardly and upwardly of the hood H. This opening/closing drive device 13 is fixed to the torii gate 3 and is driven by a car battery in the trunk, and can be operated in forward and reverse directions by operating a changeover switch (not shown) located inside the driver's seat or on a support column 7 of the loading platform 1. It is composed of an electric motor 14 that can be switched and rotated, and a rotating arm 15 that is fixed to a rotating shaft 14a of the electric motor 14 and can be rotated, and the tip of the rotating arm 15 is located on the torii 3 side of the upper frame 10U. is rotatably connected to the inner side of the end portion of the upper frame 10U to form a double lever mechanism with the upper frame 10U as a driven joint. In addition, in the figure, reference numeral 16 is a mounting bracket that rotatably attaches and supports the upper end of the upper frame 10U to the horizontal rod 8, and 18 is a mounting bracket that is fixed to the side tilter 4 and the rear tilter 5, and which attaches the lower end of the cover 11 of the hood H. It is a hook. The above is an example of the configuration of the hood opening/closing mechanism according to the present invention, and the operation thereof will be explained next. Normally, as shown in Figure 1, the lower end of the cover 11 of the top H is hung on each hook 18, 18-- fixed to the side tilt 4 and rear tilt 5 of the loading platform L, and the upper frame 10U is and the lower frame 10D are in a vertically connected state. And when loading and unloading cargo, first!
Remove the lower end of the Wll from each of the hooks 18, 18-, then turn on the changeover switch provided on the driver's seat, etc. to operate the electric motor 14 of the opening/closing drive device 13, and rotate the electric motor 14 in the forward direction. Then, the rotating arm 15 fixed to the rotating shaft 14a is rotated by a required angle clockwise as seen in FIG. As a result, the upper frame 10U connected to the tip of the rotating arm 15 is rotated by a required angle upwardly on the outside of the hood H using the horizontal rod 8 of the frame 6 as a fulcrum, and as a result, the lower end of the upper frame 10U The lower frame 10D is rotatably connected to the upper frame 1.
The frame 10, which is suspended vertically from 0U, is lifted upward, and the frame 10 is folded vertically in half at the joint between the upper frame 10U and the lower frame 10D, and the whole frame is positioned above the horizontal beam 8. It will be done. Therefore, the cover 11 placed on this frame 10
is folded vertically into two at the joint between the upper frame 10U and the lower frame 10D, and is lifted as shown by the chain line in FIG. 2, so that the entire side surface of the hood H is completely opened. Thereafter, the side tilt hooks 17, 17 are removed, the side tilt racks 4 are opened, and the sides of the cargo platform 1 are also opened. 4°ζ, when the cargo loading and unloading work is completed,
By operating the changeover switch, the electric motor 14 is reversely rotated, the rotating arm 15 is rotated counterclockwise, the upper frame 10U is rotated downward, and the -1-frame 10U and the lower frame are rotated. 1
01) returns to the original position where they are vertically connected. As described above, if the hood opening/closing mechanism according to the present invention is applied,
A relatively simple opening/closing drive device 13 automatically opens the top side of the top H, and the space between the horizontal rods 8 of the frame 6 and the floor plate 2 of the loading platform 1 is completely opened, so no manual effort is required. The canopy can be opened and closed easily and quickly without having to rely on it, and at the same time, cargo can be loaded and unloaded quickly using a forklift or the like. Further, since most of the top H is not opened at this time, the cargo can be protected from raindrops even in rainy weather. Furthermore, the frame body 1 to be opened and closed
It is composed of an upper frame 10U and a lower frame 10D in which 0s are arranged vertically, and when the upper frame 10U and the lower frame 10D are opened and closed, the upper frame 10U and the lower frame 10D
Since the upper frame 10U is folded in half at the connecting portion thereof, it is particularly advantageous that the opening and closing space for the frame 10 is sufficient as long as the space for opening and closing the upper frame 10U. In the above embodiment, a case has been described in which the electric motor 14 is used as the drive source of the opening/closing drive device 13, but the present invention is not limited to this. For example, as shown in FIG. Attached rotatably to the
The tip of the piston rod 21 may be rotatably connected to the upper frame 10U, and the piston rod 21 may be expanded and contracted to rotate the upper frame 10U (any opening/closing drive device may be used). It goes without saying that the frame lO can be disposed not only on the sides of the hood H but also on the rear thereof.Next, FIGS. 2 is a diagram showing an example in which the electric motor 14 is installed separately from the inside of the hood H, and the electric motor 14 is fixedly installed on the upper outer surface of the torii 3 on the driver's seat side,
The part of the opening/closing drive device 13 excluding the electric motor 14 is the torii gate 3.
is placed at the top of the. That is, a stainless steel plate 22 and a plywood plate 23 are attached to the outer and inner surfaces of the torii gate 3, respectively, an electric motor 14 is fixedly installed on the outside of the stainless steel plate 22, and a motor is formed between the stainless steel plate 22 and the plywood plate 23. The opening/closing drive mechanism excluding the electric motor 14 is housed in the space provided. This opening/closing drive device 13 includes a rotating arm 24 fixed to a rotating shaft 14a of an electric motor 14 passed through a stainless steel plate 22, a lever 25 whose lower end is supported by the torii 3, and a lever 25. An arm 26 in the shape of a "(") is rotatably connected to the upper end, and a double lever mechanism is formed in which the rotating arm 24 is a driving joint and the lever 25 is a driven joint. The tip of the arm 26 passes through an opening 27 bored in the upper side of the torii gate 3 and is rotatably connected to the inner side of the end of the upper frame 10U on the torii gate 3 side, and the upper frame is connected with the lever 25 as a driving link. A four-section rotational chain mechanism is formed with 10U as a driven node.Thus, in the opening/closing drive device 13 on the right side shown in FIG. If you move it, the lever 25 will also rotate clockwise,
The upper frame 10U is rotated by the arm 26 using the horizontal rod 8 of the frame 6 as a fulcrum and rotated to the outside and upward of the hood H by a required angle, and the cover 11 placed on the frame body 10 connects the upper frame 10U and the lower frame 10D. The hood is lifted up while being folded in half vertically from the top.
will be released. Note that 27 is a shock absorbing device connected to the tip of the rotating arm 24 so as not to cause an impact due to its own weight when the frame body 10 is opened and closed, especially when it is closed. As described above, according to this example, since the opening/closing drive device 13 is separated from the inside of the canopy H by the plywood board 23, the drive device 13 may get in the way when loading and unloading cargo, or conversely, the drive value W13 The drive value W1
There is an excellent effect that the internal space of the hood H can be used effectively without the grease or the like applied to the rotating parts 3 contaminating the cargo. Furthermore, as shown in FIGS. 4 and 5, if the horizontal rods 8 of the frame 6 are installed as close to the main part of the top H as possible, and the height of the arched vibe 9 is made as low as possible, the sides of the top H can be This has the effect of allowing a wider opening and making it easier to load and unload cargo. Note that it is of course possible to house the electric motor 14 in the space between the stainless steel plate 22 and the plywood plate 23. [Operations and Effects of the Invention] As described above, the hood opening/closing mechanism according to the present invention opens and closes the outside of the hood using the opening/closing drive device of the frame consisting of the upper and lower frames disposed on the sides and/or rear of the hood. By rotating it upward, the canopy cover is folded in half and lifted to open it, so the opening and closing work of the canopy can be automated and done easily and quickly. Since there is no need to open the top, the cargo can be protected from heat even during cargo loading and unloading operations in rainy weather. In addition, since the frame is folded vertically into two and lifted upwards, the space needed to open and close the canopy is extremely small, and it has the particularly excellent effect of being able to be opened and closed even in narrow alleys with densely packed houses. . Therefore, small trucks for liquor delivery, vegetables, and fruits frequently take out and take out cargo in alleys, etc. It is particularly useful as a canopy opening/closing mechanism for large cargo trunks as well as small trunks for mobile stores loaded with fresh fish and the like. Further, the structure for this purpose is simple, and the frame body and opening/closing drive device according to the present invention can be attached to a general existing canopy consisting only of a very cheap frame and a cover placed on it. It also has the advantage of being extremely easy to apply with just a few simple modifications. 4. Brief description of the drawings Fig. 1 is a side view of a trunk showing an example of the hood opening/closing mechanism according to the present invention, Fig. 2 is a view seen from the rear, and Fig. 3 is a view showing another example of the hood opening/closing mechanism according to the invention Explanatory diagram of main parts showing an example, 4th
5 and 5 are a side view and a rear view of main parts showing still another example. Explanation of codes 1--Trunk loading platform, 2--Floorboard, 3--Torii,
4-Side tilt, 5-・Rear tilt, H・-・Top, 6-
- Frame, 7 - Support, 8 - Horizontal rod, 9 - Arch pipe, 10 - Frame, IOU - Upper frame, l0D -
...Lower frame, 11...cover, 12-...bush vibe, 1
3.-Opening/closing drive device, 14-.-Electric motor, 14a-
15. Rotating arm, 20. Hydraulic cylinder, 21. Piston rond. Patent Applicant Oshima Freight Co., Ltd. Agent Patent Attorney Hunno Transcript Figure 3 Enoki

Claims (1)

Scope of Claims: (l) In a trunk hood opening/closing mechanism for opening and closing a hood configured by covering a frame framed on a cargo bed of a trunk, an upper end of the hood is attached to the side and/or rear of the hood; A frame body is provided which is rotatably supported on the top of the canopy to fold the cover in half and lift it up, and a drive device is provided which rotates the frame body by a required angle toward the outside and upward of the canopy. A truck hood opening/closing mechanism characterized by comprising: (2) The frame body comprises an upper frame and a lower frame that are vertically foldable and connected to each other, and the upper frame is rotated by the drive device. Trunk top opening/closing mechanism.