JP3447038B2 - Roll-up shutter for cargo body - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind-up type shutter which is openably and closably provided at an opening of a side or rear surface of a cargo body of a truck. 2. Description of the Related Art As a conventional side opening / closing mechanism and a rear opening / closing mechanism of a cargo body in a truck, for example, opening / closing mechanisms as shown in FIGS. 10 and 11 are known. FIG. 10 shows a side opening and closing mechanism in which an aluminum panel called a wing 21 or a side and an upper surface of a campus are integrally flipped up, and the one shown in FIG. This is the side opening / closing mechanism used. In addition, there is a side opening / closing mechanism using a hanging-type or winding-type curtain in which a curtain is wound around a rotary shaft provided above a side opening. As the rear opening / closing mechanism, a double door 23 as shown in FIGS. 10 and 11 is generally used. However, in the case of the wing type as shown in FIG. 10, when the side of the cargo body 24 is opened and closed by the wing 21 when loading and unloading the cargo, the opening and closing space of the wing 21 is larger than the width and height of the truck. Therefore, when loading and unloading the luggage, it is necessary to always secure a sufficient space, and in some cases, it becomes difficult to unload the luggage in a narrow place. Further, in the case of the side-opening side curtain system shown in FIG. 11, a folding space for the side curtain 22 is required when opening and closing the side surface of the cargo body 24 when loading and unloading luggage. There has been a problem that the efficiency of loading and unloading of the package is reduced. Further, in the case of a hanging-type or winding-type curtain system, a power mechanism for winding the curtain around the rotating shaft is required, and a gap for rotating the rotating shaft is required. There were problems such as the fear of rain leaking from gaps. On the other hand, also in the case of the rear opening / closing mechanism using the double door 23 shown in FIGS. 10 and 11, when the double door 23 on the rear surface of the cargo body 24 is opened / closed during loading / unloading of the cargo, the door opening / closing space is provided rearward and sideways. Therefore, there is a problem that a sufficient space must always be secured when loading and unloading luggage. SUMMARY OF THE INVENTION It is an object of the present invention to provide a roll-up type shutter for a cargo body which does not require extra space for opening and closing and does not narrow the opening space. Another object of the present invention is to provide a roll-up type shutter for a cargo body which can be easily opened and closed without requiring a power mechanism, and which does not cause a risk of rain leakage. It is a further object of the present invention to provide a rollup shutter for a cargo body that can be easily installed on a cargo body of a truck. In order to achieve the above-mentioned object, a roll-up type shutter for a cargo body according to the present invention is provided with a roll-up type that is openably and closably provided at an opening in a side surface or a rear surface of the cargo body. A shutter, which is a rectangular sheet, and a bag-shaped sheet provided between the upper side and a substantially middle portion in the length direction at equal intervals in parallel with each other and two sides at opposite left and right ends of the sheet. A spring insertion portion,
An end of an upper side of the sheet orthogonal to the spring insertion portion and a spring locking member provided at the intermediate portion; and a thin plate inserted into the spring insertion portion and having both ends locked by the spring locking member. And a locking member for locking the spiral spring to the spring locking member, wherein the spring locking member provided on the upper side of the seat is provided at an upper portion of an opening on a side surface or a rear surface of the cargo body. The lower side of the seat can be locked to the lower part of the opening, with the spring locking member provided on the upper side of the seat being attached to the side surface or the rear surface. When it is attached to the upper part of the opening with rain, the spring locking member in the middle part is rolled up by the spiral spring together with the sheet below it, and it is pulled down by holding the end of this sheet By locking the lower part, the shutter can be lowered, and by releasing the lower end of the sheet, the sheet can be wound up by the spiral spring and the opening can be opened. It is possible to provide a cargo body shutter in which the shutter can be easily opened and closed by holding the end portion of the sheet without using any space, and no extra space for opening and closing is required, and the opening space is not narrowed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wind-up shutter according to the present invention will be described below with reference to the drawings. 1 is a perspective view of a roll-up shutter for a cargo body as viewed from the back, FIG. 2 is a perspective view of the roll-up state as viewed from the front, FIG. 3 is a perspective view of a roll-up shutter for a cargo body as viewed from the back,
FIG. 4 is a perspective view of the rolled-up state as viewed from the front, FIG. 5 is a side view showing a modified example of the cargo body roll-up shutter, and FIG. 6 is a side view showing another modified example of the cargo body roll-up shutter. FIG. 7 is a perspective view of a roll-up type shutter for a cargo body according to the present invention as viewed from the back surface,
FIG. 8 is a perspective view of the rolled-up state as viewed from the front, and FIG. 9 is a side view showing a state of a seal of an opening to which a roll-up type shutter for a cargo body is attached. In FIGS. 1 and 2, reference numeral 1 denotes a waterproof rectangular sheet constituting a roll-up shutter for a cargo body, which is made of various sheet materials cut to an appropriate size according to the application. ing. On the back surface of the sheet 1, a bag-shaped spring insertion portion 2 is formed along the two parallel sides over its entire length. The spring insertion portions 2 are provided at five positions including both ends of two parallel sides of the seat 1 at equal intervals in parallel with each other. A belt-shaped or pipe-shaped or bar-shaped spring locking member 3 formed by cutting an iron plate is provided at both ends of two sides of the sheet 1 in a direction orthogonal to the spring insertion portion 2.
It is installed along its entire length. The two ends of the thin plate-shaped spiral spring 4 inserted between the spring locking members 3 while being extended into the spring insertion portion 2 are locked via locking tools 5 such as rivets. The spiral spring 4 constitutes a roll-up shutter for a cargo body in which the sheet 1 can be rolled up. The spring locking member 3 on the upper side of the cargo body wind-up type shutter constructed as described above is attached to the side of the cargo body of the truck and the upper inside of the opening on the rear surface in a rain-closed state. The cargo body wind-up shutter is normally rolled up by the action of the spiral spring 4 as shown in FIG. 2, and from this state, the lower spring locking member 3 or the rolled-up sheet 1 , The sheet 1 is stretched while being rewound against the spiral spring 4, whereby the shutter can be lowered and the opening can be closed. By properly locking the lower spring locking member 3 below the opening, the shutter can be maintained in the closed state. On the other hand, when the shutter is opened for loading / unloading of the load, the lower spring locking member 3 is required.
Is released, the sheet 1 is automatically wound up by the action of the spiral spring 4, and the opening can be fully opened. Therefore, according to the cargo body wind-up type shutter, the shutter can be easily installed simply by attaching the upper spring locking member 3 to the upper part of the opening in a rainy manner. Can be easily opened and closed by using the spring action of the spiral spring 4 without providing a power mechanism. Further, since it is not necessary to secure an extra space for opening and closing the shutter, and since the opening space is not narrowed by the shutter itself, the opening can be fully opened and the luggage can be efficiently loaded. Can be unloaded and loaded. Furthermore, since the upper spring locking member 3 is attached to the upper part of the opening in a rainy manner, the opening is closed by the waterproofed sheet 1 so that rainwater from the opening facing the outside can be prevented. Can be prevented from entering. In order to further facilitate opening and closing of the above-described cargo body wind-up type shutter, a string member 6 is provided as extension means as shown in FIGS. This string member 6
Are attached to both ends of the lower spring locking member 3, and the length thereof is set substantially equal to the length of two sides in the direction in which the spring insertion portion 2 of the seat 1 is provided. When the sheet is rolled up, the sheet 1 whose tip is rolled up
From which it hangs down. A ring 7 is provided at the distal end of the string member 6 so that a finger can be inserted so that the string member 6 can be easily pulled when the shutter is lowered. Thus, when lowering the rolled-up shutter as shown in FIG. 4, the finger is inserted into the tip ring 7 of the string member 6 hanging from the rolled-up sheet 1 and pulled down, so that the shutter can be lowered more easily. The opening can be closed. The extension means will be described with reference to FIGS. This extending means is applied when the spring locking member 3 on the lower side of the above-mentioned roll-up type shutter for a cargo body is at a high position where a hand cannot be hooked. As shown in FIG. 5, the lower spring locking member 3
And a handle 9 is attached to the extended portion via a universal joint 8,
When lowering the rolled shutter, handle 9
, The shutter can be lowered to close the opening. As shown in FIG. 6, the lower spring engaging member 3 is attached to the same moving direction side of the chain 11 hung on the upper and lower gears 10, and the lower gear 10 is attached to the handle 9. As in the example of FIG. 5, when lowering the rolled-up shutter, by rotating the handle 9, the shutter can be lowered and the opening can be closed. Next, a roll-up type shutter for a cargo body according to the present invention will be described with reference to FIGS. Such a shutter is different from the above-described shutter in that the length of the spring insertion portion 2 and the spiral spring 4 of the shutter according to the present invention is approximately half the length of the sheet 1, and the upper spring engaging portion is fixed to one end of the sheet 1. A member 3 is provided, and a lower spring engaging member 3 is provided at an intermediate portion thereof. The seat 1 below the spring engaging member 3 at the intermediate portion is connected to the spring engaging member 3 at the intermediate portion.
And wound up by the spiral spring 4. According to the shutter of the present invention, the sheet 1 below the spring locking member 3 at the intermediate portion is wound up as shown in FIG. By pulling down with the end 1A of the shutter 1, the shutter can be easily pulled down to close the opening. The shutter 1 can be held in a closed state by appropriately locking the end 1A of the seat 1 to the lower part of the opening. When the shutter is opened for loading and unloading of the luggage, the end 1A of the sheet 1 is unlocked, so that the sheet 1 is moved by the action of the spiral spring 4 so that the spring engaging member at the intermediate portion is provided. 8 is automatically wound up to the state shown in FIG. Therefore, the shutter can be easily opened and closed without a power mechanism, and no extra space is required for opening and closing the shutter, the opening space is not narrowed by the shutter itself, and the opening is fully opened. be able to. FIG. 9 shows an example in which the opening where the roll-up shutter for the cargo body according to the present invention is attached is carefully sealed. A sealing member 16 such as a cushion is provided at a portion of the opening which is in close contact with the shutter. When the roll-up type shutter for cargo body is extended on the seal member 16, the seal member 16 is pressed by the shutter by the action of the spiral spring 4 to seal the opening portion. The state can be secured. In each of the embodiments described above, a rectangular sheet is described for use as a shutter for opening and closing the side or rear opening of the cargo body of a truck. The roll-up shutter is not limited to a rectangular sheet, and can be similarly configured with a trapezoidal sheet according to the shape of the opening. Furthermore, by appropriately selecting the interval at which the spiral springs are arranged, the strength of the spiral springs, etc., the present invention can be widely applied as a roll-up shutter for various types of cargo bodies. As described above in detail, according to the roll-up type shutter for a cargo body according to the present invention, a spring is used at a middle portion by using a spiral spring without providing a power mechanism. A roll-up shutter for a cargo body that can be automatically opened and closed together with the member can be obtained. According to the roll-up type shutter for a cargo body, it is not necessary to secure an extra space for opening and closing the shutter, so that the space required for loading and unloading cargo can be minimized, and the shutter itself has an opening space. It is possible to efficiently load and unload luggage with the opening fully opened without narrowing the load. Further, since the spring locking member is attached to the upper portion of the opening in a rainy manner, it is possible to provide a shutter which does not leak rain, and to attach a string member or to wind up the end of the sheet in a rolled up state. The opening and closing of the shutter can be further simplified by configuring the shutter to project.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a roll-up type shutter for a cargo body as viewed from the back. FIG. 2 is a perspective view of a rolled-up shutter for a cargo body as viewed from the front in a rolled-up state. FIG. 3 is a perspective view of another roll-up shutter for a cargo body as viewed from a back surface. FIG. 4 is a perspective view of a rolled-up shutter for a cargo body when the rolled-up shutter is viewed from the front. FIG. 5 is a side view showing a modified example of a roll-up type shutter for a cargo body. FIG. 6 is a side view showing another modification of the roll-up shutter for the cargo body. FIG. 7 is a perspective view of a roll-up type shutter for a cargo body according to the present invention as viewed from the back surface. FIG. 8 is a perspective view of a rolled-up shutter for a cargo body according to the present invention as viewed from the front; FIG. 9 is a side view showing a state of sealing of an opening to which a roll-up shutter for a cargo body of the present invention is attached. FIG. 10 is a perspective view showing an example of a side opening / closing mechanism and a rear opening / closing mechanism of a conventional cargo body of a truck. FIG. 11 is a perspective view showing another example of a side opening / closing mechanism and a rear opening / closing mechanism of a conventional cargo body of a truck. [Description of Signs] 1 Seat 2 Spring insertion part 3 Spring locking member 4 Spiral spring 5 Locking tool 6 String member 9 Handle 10 Gear 11 Chain

──────────────────────────────────────────────────続 き Continued on front page (73) Patent holder 597048160 Fabrics Nonomiya 4-23-23 Minamimaekawa-cho, Tokushima-shi, Tokushima Pref. (73) Patent holder 597048171 Yoshimasa Miyamoto 2-8 Tsuruyacho, Takamatsu-shi, Kagawa (73) Patent Holder 597048182 Yoshihara Tent Co., Ltd. 2-10-20, Tomatsu, Saeki-ku, Hiroshima-shi, Hiroshima (73) Patent Holder 597048193 Sato Waterproofing Company 2-5-1, Toyocho, Oita-shi, Oita (72) ) Inventor Takao Ishii 2- 2-19 Kotobukicho, Atsugi-shi, Kanagawa Pref. Ishiiuchi Co., Ltd. (72) Inventor Tatsumi Tsuboi 378 Sodesoshi-cho, Shimizu-shi, Shizuoka Pref. At 643 Kanaya Kawara, Kanaya-cho, Haibara-gun, Tochigi 72 Incorporated company Ozawa tent (72) Inventor Toshio Horiki 3-2 Takasago-cho, Yokkaichi-shi, Mie Avion In-house (72) Inventor Mitsuzou Nonomiya 4-23, Minamimaekawa-cho, Tokushima, Tokushima Pref.Fabrics Nonomiya-uchi (72) Inventor Yoshimasa Miyamoto 2-8, Tsuruya-cho, Takamatsu-shi, Kagawa (72) Invention Person Toshinao Yoshihara 2-10-20 Toshimatsu, Saeki-ku, Hiroshima City, Hiroshima Prefecture Inside Yoshihara Tent Co., Ltd. (72) Inventor Yuichi Sato 2-5-1 Toyomachi, Oita City, Oita Prefecture Inside Sato Waterproofing Co., Ltd. (56) Reference Literature Japanese Utility Model Showa 48-96622 (JP, U) Japanese Utility Model Showa 57-113226 (JP, U) Japanese Utility Model 7-1876 (JP, U) Japanese Utility Model 54-31448 (JP, Y2) Japanese Utility Model No. 7- 40637 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) E06B 9/40 B60J 5/14 E06B 9/02

Claims (1)

(1) A roll-up type shutter which is openably and closably provided at an opening in a side surface or a rear surface of a cargo body, comprising: a square sheet; and opposite left and right ends of the sheet. 2
A bag-shaped spring insertion portion provided between the upper side and a substantially middle portion in the length direction at equal intervals in parallel with each other between the sides, and an end of an upper side orthogonal to the spring insertion portion of the sheet; A spring locking member provided at the intermediate portion, a thin plate-shaped spiral spring inserted into the spring insertion portion and having both ends locked by the spring locking member, and the spiral spring fixed to the spring locking member. A locking tool for locking, the spring locking member provided on the upper side of the seat is attached to the upper side of the opening of the side or rear surface of the cargo body in a rainy state, and the lower side of the sheet is A roll-up shutter for a cargo body, characterized in that it can be locked at a lower portion of the opening.