JPH0125752Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention consists of a loading platform side hinge member that is fixed outwardly to the edge of the rear loading platform of a truck, and a hinge member that is fixed to the essential part of the lower edge of the loading platform door. This invention relates to a combination of a sliding door hinge which is rotatably connected to a door side hinge with a hinge pin.

[Prior Art] Conventionally, the hinge mechanism of a loading platform door that is hinged outwardly to the edge of the opening of the rear loading platform of a freight vehicle, etc. has mainly been a simple hinge, and the opening and closing of the sliding door has been However, the simple hinge structure was effective to some extent.

By the way, as shown in Figures 6 and 7,
The conventional loading platform side hinge member 3' fixed outwardly to the edge 11 of the rear loading platform 1, and the sliding door side hinge members 8' fixed to the main parts of the lower end edges on both sides of the loading platform sliding door 2, In the explanatory diagram of the combination of the sliding door hinge 10' which is rotatably pivoted with the hinge pin 6', the loading platform sliding door 2 can be opened up to 90 degrees and brought to a horizontal position with the assistance of the stay 9. Although it is held at this angle, as shown in FIG. 7, there is a large gap between the edge of the rear cargo platform 1 and the cargo platform fan door 2 which is pivotally connected with a hinge. In addition, when the lower edge of the sliding door 2 and the loading platform 1 are opened to hang down to the 180-degree angle shown by the imaginary line in the figure,
It is also not perpendicular to the floor surface. In addition, the fan door 2
When the door is stood up, the hinge 10' is visible from the lower edge of the sliding door 2 from the rear of the outside, which does not look good.

However, in recent years, the style of the rear cargo bed of a freight vehicle has been modified in terms of its design, and the requirements for its appearance have become higher year by year. is also related to the usability of the cargo truck platform.
Various conditions have arisen.

For example, the stylistic requirements and level of requirements for the rear cargo bed of a truck are: (1) The aforementioned hinges are not visible from the outside.

(2) When the outward-hinged loading platform door is opened 90 degrees, the loading door and the loading platform floor should be flush with each other.

(3) Minimize the gap between the edge of the rear loading platform and the loading platform door.

(4) As a stylish loading platform, various conditions were being added, including design considerations, such as a thick sliding door style.

[Purpose of the invention] Based on the above-mentioned background, this invention has a sufficient function to pivot the stylish cargo bed of a freight vehicle. Not visible from the outside. Additionally, when the outward-hinged loading platform fan door is opened 90 degrees, the door is flush with the floor of the loading platform, minimizing the gap between the edge of the rear loading platform and the loading platform door. It attempts to provide a hinge.

[Structure of the invention] This invention connects the loading platform side hinge member, which is fixed outwardly to the edge of the rear cargo bed of a freight vehicle, and the sliding door side hinge member, which is fixed to the main part of the lower end edge of the loading platform sliding door, using hinge pins. In the combination of a sliding door hinge that is rotatably attached to a hinge, a U-shaped hinge member having a pair of through holes is arranged inside the hinge member, and an L-shaped base is pivoted to the through hole with a main hinge pin. L pivoted in a hole for free swinging
a link plate having a shape, a connecting pin fixed in parallel with the main hinge pin to a lower hole bored at the lower end of the link plate, and connecting the link plate with one end of the hinge pin; an engagement shaft that is fixed in parallel to the main hinge pin in an upper hole drilled in the terminal, and that is engaged with an engagement groove at the other end of the hinge arm; and a hook type that opens downward from the inside of the lower edge of the sliding door. The hinge member has an engagement groove and a hole for the connecting hinge pin is provided at an outer position of the lower edge of the hinge member. This is a sliding door hinge structure for a freight vehicle loading platform, characterized in that a recessed portion of a matching groove engages with the engaging shaft.

[Example] Hereinafter, an example of this invention will be explained in detail with reference to the drawings.

Figures 1 to 5 show examples of this invention, and Figure 1 is a cutaway view of the main parts of the loading platform with the sliding door of this invention in an upright position, where 1 indicates the loading platform;
2 is a thick fan door. Reference numeral 3 denotes a cargo platform side hinge member fixed outwardly to the edge 11 of the rear cargo platform 1. This cargo platform side hinge member 3 is a press-molded product and has a U-shape, and the edges 11 are parallel to each other. Through hole 3 drilled in the board thickness direction at both ends
1,32.

As shown in FIGS. 4 and 5, reference numeral 4 is a press-formed link plate having an L-shape, with upper perforations 41 bored in the thickness direction at both ends.
and the lower drilling hole 42, and the L-shaped root pivot hole 4.
3.

Reference numeral 5 denotes a shaft for engagement, and the shaft for engagement 5 is connected to a connecting hinge pin 7 fixed in parallel with the main hinge pin 6 to an upper perforation hole 41 bored in the thickness direction at both ends of the link plate 4. Pivot to each hole so that they are parallel. In addition, an engagement roller 51 is loosely inserted through the center of the engagement shaft 5 of the link plate 4,
The engagement and disengagement operations described below can be performed freely.

6 is a main hinge pin, which is attached to the hinge member 3;
The link plate 4 is disposed inside the L-shaped base, and the pivot hole 43 at the L-shaped base is aligned with the through holes 31 and 32.The main hinge pin 6 is inserted through the link plate 4, and both ends are caulked to allow the link plate 4 to swing. It is pivoted so that it can move freely.

7 is a connecting hinge pin, which is connected to the link plate 4.
A hinge pin 8, which will be described later, is pivotally mounted parallel to the main hinge pin 6 to a lower hole 42 formed in the thickness direction at the end of the plate.

Next, 8 is a hinge pin, which has a hook-shaped engagement groove 82 that opens downward from the inside of the lower edge 21 of the sliding door 2, and has a connecting hinge pin drilling hole 81 at an outer position 22 of the lower edge 21. It is equipped with the following.

The concave portion 83 of the engagement groove 82 of the hinge member 8 is configured to be able to engage and disengage from the roller 51 of the engagement shaft 5 in accordance with the rotation of the loading platform fan door 2.

[Function] Next, regarding the combination structure of the sliding door hinge of this invention, as shown in Figs. 1 to 3,
In response to the rotation of the sliding door 2, the sliding door 2 can be tilted downward about the main hinge pin 6 at the pivot hole 43 at the base of the link plate 4 of the lower edge 21 of the sliding door 2. Then, when it is tilted down to the horizontal position shown in FIG. 2, the folding stay 9 is extended, and the swing door 2 is prevented from tilting downward any further and stops at this position.

Next, when the lower end of the above-mentioned extended folding stay 9 is released from the locking position, the sliding door 2 is suspended downward. At this time, the lower edge 2 of the sliding door 2
The sliding door 2 is suspended downward about the connecting hinge pin 7 in the lower hole 42 of the first link plate 4.

Further, since the engagement roller 51 is loosely inserted through the center of the engagement shaft 5 of the link plate 4, the roller 51 is inserted into the recess 83 of the engagement groove 82 of the loading platform fan door 2. From there, it leaves the country smoothly.

As shown in FIGS. 3 and 4, the base and part of the upper end of the link plate 4 are arranged while extending laterally from the floor surface of the loading platform 1, but the lower part of the link plate 4 is The position of the connecting hinge pin 7 in the hole 42 is inverted and hung downward, and the swing door 2 is hung downward with this as the center of rotation.

Conversely, in order to pull up the sliding door 2 that is hanging downward, hold the lower edge of the sliding door 2, and if you want to pull it upward, use the recess 83 of the engagement groove 82 of the sliding door 2.
The roller 51 engages into the inner part of the holder.

Furthermore, by pulling this sliding door 2 upward, the sliding door 2 can be assembled into a normal loading platform case.

[Effects of the invention] As described above, in the loading platform using the sliding door hinge of this invention, (1) the above-mentioned hinge device cannot be seen from the rear of the exterior;

(2) When the outward-hinged loading platform sliding door is opened 90 degrees horizontally, the inner surface of the loading door is flush with the loading platform floor, which is extremely efficient in use.

(3) The gap between the edge of the opening of the rear loading platform and the loading platform sliding door can be minimized, which also improves efficiency in use and reduces the chance of cargo falling through the gap.

(4) As a stylish loading platform, it is effective in terms of design as well, such as the ability to create a thicker rear loading platform.

Moreover, as a sturdy hinge, there is no possibility of failure during use, and it can be said that it is a valuable device from a practical standpoint.

[Brief explanation of drawings]

Figures 1 to 5 show examples of this invention. Figure 1 is a cutaway view of the main part of the loading platform with the sliding door of this invention in an upright position, and Figure 2 shows the sliding door opened 90 degrees. Figure 3 is a cutaway view of the main part of the loading platform in the horizontal state, Figure 3 is a cutaway view of the main part of the loading platform with the sliding door hanging down 180 degrees, Figure 4 is a perspective view of the entire loading platform with the sliding door hanging down, Figure 5 shows another embodiment of this invention, in which the sliding door is opened at 90 degrees and is an overall perspective view in a horizontal state, and Figures 6 and 7 show conventional examples. FIG. 7 is a cutaway view of the main parts of the loading platform in the upright state, and FIG. 7 is an enlarged view of the main parts showing another conventional example. 1... Loading platform, 2... Sliding door, 3... Hinge member, 4... Link plate, 5... Engagement shaft, 6... Main hinge pin, 7... Connecting hinge pin, 8... Hinge female, 9... ...stay, 1
1... Edge, 21... Lower edge, 31, 32... Through hole, 41, 42... Drilling hole, 43... Pivoting hole,
81...Drilling hole for hinge pin, 82...Engagement groove, 83...Recess.

Claims (1)

[Scope of Utility Model Registration Claim] The loading platform side hinge member that is fixed outward to the edge of the rear loading platform of a truck and the sliding door side hinge member that is fixed to the essential part of the lower end edge of the loading platform sliding door are connected by hinge pins. A combination of a sliding door hinge rotatably mounted includes (a) a U-shaped hinge member having a pair of through holes, and (b) a main hinge pin disposed inside the hinge member and connected to the through hole with a main hinge pin. (c) an L-shaped link plate pivotally connected to the pivot hole at the L-shaped base; (d) a connecting pin that connects the plate and one end of the hinge member; (d) a connecting pin that is fixed in parallel to the main hinge pin in an upper hole bored at the upper end of the link plate, and for engaging the other end of the hinge member; (e) a hinge shaft having a hook-shaped engagement groove that opens downward from the inner side of the lower edge of the sliding door, and the hole for the connecting hinge pin provided at the outer side of the lower edge; (f) A concave portion of an engagement groove on the inner side of the lower edge of the hinged mail engages with the engagement shaft in response to rotation of the loading platform sliding door. Door hinge structure for automobile loading platform.