JPH02140378A - Hinge - Google Patents

Abstract

PURPOSE:To facilitate the opening/closing movement of a door without damaging a sealing packing by restraining the shift of a hinge pin in a prescribed angle or less by a curved guide pin which is projectingly installed onto the movable piece or the fixed member of a hinge. CONSTITUTION:A hinge 10 is formed from a fixed piece 11 fixed onto movable member MB which projects in the outside direction of the side plate B1 of a packing case B and shifts forwardly, hinge pin 12, and a guide block 14 installed on the back surface and a movable piece 13 fixed onto a door D. Further, a curved guide pin 21 is projectingly installed onto a pillar member B2 as a fixing member opposed to the movable piece 13, and projected from a guide hole on the movable piece 13. Until the door D is opened to a prescribed angle theta1, a sealing packing SP is correctly held by restricting the shift of the hinge pin 12 by the guide pin 21, and when the angle theta2 is realized, the hinge pin 12 is shifted along a locus K by the block 14. Further, the guide pin 12 may be installed onto the movable piece 13 or substituted by a regulating member.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hinge, and particularly to a hinge suitable for use in which a hinge pin moves in a generally arcuate trajectory when opening and closing a door.

The rear door of the loading box B of the conventional bread truck has two double doors (D), which open fully at an angle of 90 degrees from the fully closed state, and then move forward along the side plate B1 of the loading box B. If it can be stored, it is convenient because there is no need to go around an open door when handling cargo (arrow AI in FIG. 7).

Therefore, in this type of door device, the trajectory of the back and forth movement of the door in the open state is longer than simply moving the door in the open state forward parallel to the side plate B1 of the cargo box B. teeth,
-It is better to move the door parallel to the outside direction away from the side plate B1 and then move it forward parallel to the side plate B1.
- layer is preferred (arrow A2' in the figure). Since a large number of equipment, including rear tires, are installed under the floor of cargo box B, the space for installing the door advancement guide rail is often extremely limited. However, if the guide rail moves parallel to the outside direction and then moves forward, the degree of freedom in attaching a guide rail having a necessary and sufficient longitudinal movement stroke can be increased.

In this way, the door in the open state moves from the side plate B1 to
The applicant has already proposed a door device that moves parallel outward and then moves forward. ,
It also moves along with the door in a generally arcuate trajectory, following arrow A2 in the figure. Note that the hinge H used here is a fixed piece fixed to a movable member (not shown) that engages with the guide rail, and a movable piece fixed to the door door, which are rotatably connected via a hinge pin. It was a common thing.

The problem to be solved by the invention is that in the prior art, since the hinges were common, the entire door could not be loaded even if it was in the fully closed state or close to the fully closed state. Since it tends to move outward away from the side panel of the box, there is a risk that the stability of the door in the fully closed state may be impaired. For this reason, when a seal gasket is attached to the hinge-side end surface of the door, there is a risk that the seal gasket may be damaged early or that the smoothness of the opening and closing movement of the door may be hindered.

Therefore, in view of the actual state of the prior art, it is an object of the present invention to
By actively restraining the movement of the hinge pin of the hinge, the stability of the door in the fully closed state can be sufficiently increased, and it also prevents damage to the seal gasket, and prevents the opening and closing of the door. The objective is to provide a hinge that does not pose a risk of deteriorating performance.

Means for Solving the Problems The structure of the present invention to achieve the object is such that when the hinge pin moves in a substantially arcuate trajectory when the door is opened and closed, the movable piece and the end surface of the hinge side of the door move. A curved guide pin is provided protruding from either side of the fixed member that faces when fully closed,
The gist is that the curve guide pin restricts movement of the hinge pin below a predetermined opening degree of the door.

Further, the curve guiding pin may be replaced with a regulating member that protrudes from the fixed member and has a curved outer circumferential surface.

Therefore, when using this configuration, the curved guiding pin restricts the movement of the hinge pin when the opening degree of the door is below a predetermined opening degree. The opening and closing operation of the door is exactly the same as the opening and closing operation of the door, so the opening and closing operation of the door is smooth. In addition, even if a seal packing is installed between the fixing member and the hinge side end surface of the door, the hinge pin is restrained, so the gap where the seal packing is inserted remains constant, and as a result, Furthermore, there is no risk of inadvertently damaging the seal packing.

Furthermore, if the door is opened to a predetermined opening degree or more, the restraint on the hinge pin is released, so the hinge pin can move freely along its approximately arcuate trajectory, and from then on, the door In addition to being able to perform forward motion with the movement of the hinge pin, the opening and closing motion around the hinge pin is also the same as when using a conventional hinge, and a predetermined opening and closing motion can be performed.

Note that even when using a regulating member that protrudes from the fixed member and has a curved outer peripheral surface in place of the curved guide pin, the same effect can be achieved, and the regulating member can also be used with any plate thickness. Since it can be formed from a plate material, its strength can be easily increased.

It works as described above.

Example Examples will be described below with reference to the drawings.

The hinge 10 includes a fixed piece 11, a hinge pin 12, a movable piece 13, and a bending guide pin 21 (FIGS. 1 and 2).

The hinge 10 rotatably connects a fixed piece 11 and a movable piece 13 via a hinge pin 12, and connects the rear door of the loading box B of the bread truck to the rear end of the loading box B. It is used to open and close around the pillar material B2 at the corner.

The fixing piece 11 of the hinge 10 is guided by a guide rail (not shown) installed under the floor of the cargo box B, and when the door is fully opened, the fixing piece 11 of the hinge 10 protrudes toward the outside of the side plate B1, and further
The hinge 10 is fixed to a movable member MB that can be moved forward, and the movable piece 13 of the hinge 10 is attached to the door door.

Therefore, when opening the door from the fully closed state, the hinge pin 12 of the hinge 10 follows the movement of the movable member MB.
It is assumed that the robot can move along a substantially arcuate trajectory K in the direction of arrow A2 in FIG. Furthermore, the movement of the hinge pin 12 when closing the door also follows the trajectory K, and its direction is opposite to the arrow A2.

The curve guide pin 21 is provided protruding from the rear surface of the pillar B2, which is a fixed member, and faces the hinge side end surface of the door when it is fully closed. The curve guide pin 21 is a hook-shaped member that can surround approximately half the circumference of the hinge pin 12 so that it can receive and stop the hinge pin 12 at the end of the trajectory, and its mounting position is approximately at the center of the hinge pin 12. The position corresponds to the center (Fig. 1).

A guide hole 13a is formed in the movable piece 13, through which the bending guide pin 21 can be inserted.

Guide hole], the periphery of 3a is such that the opening degree of the door is the predetermined opening degree 01
In the following cases, the second
(Figure), therefore, in this state, the curve guide pin 21 is sandwiched between the hinge pin 12 and the periphery of the guide hole 13a within the guide hole 3a. Therefore, as a result, the bending guide pin 21 is in a state where the movement of the hinge pin 12 is restrained. Further, when the door is nearly fully opened, the bending guide pin 21 is removed from the guide hole 13a, and the restraint of the hinge pin 12 is released.

A guide block 14 is attached to the back surface of the movable piece 13. The guide block 14 has a substantially right triangular cross section, and has a predetermined opening degree θ2 (θ2
By slidingly contacting the tip of the bending guide pin 21 in the vicinity of θ1), the position of the hinge pin 12 on the trajectory can be regulated.
The oblique side of the guide block 14 is a curved surface that matches the curvature of the tip of the curved guide pin 21.

A seal gasket SP having a diagonal cross-section is attached to the hinge-side end surface of the door, and seals the gap d between the door and the MDI pillar B2 in the fully open state.

The operation of the hinge 10 having such a configuration will be explained as follows.

First, consider the case when the door is fully open (solid line in Figures 1 and 2). At this time, the curved guide pin 21
Since the hinge pin 12 of the hinge 10 is located in the guide hole 3a provided in the movable piece 1-3 of the hinge 10, its movement is restricted, and therefore the gap d between the door door and the pillar material B2 remains constant. Therefore, the seal packing SP can accurately seal this gap d.

Until the door is opened to the predetermined opening degree θ1, the curved guide pin 21
continues to restrict the movement of the hinge pin 12, so the door rotates around the restrained position of the hinge pin 12 until it reaches this predetermined opening degree θl (arrow A3 in FIG. 2). Moreover, at this time, the seal packing SP escapes from the gap d and returns to its original substantially H-shaped shape due to its elasticity.

Furthermore, when the door is opened to a predetermined opening degree θ2, the curved guide pin 21 is removed from the guide hole 13a, and the hinge pin 12
release the restraints. However, at this point, the guide block 14 on the back side of the movable piece 13 is
The hinge pin 12 slides on the tip of the bending guide pin 21 and restricts the position of the hinge pin 12 on the trajectory.
The robot starts moving along a predetermined trajectory K from the restrained position (arrow A4 in FIG. 2).

Next, when the door is opened to the fully open position, guide block 1
4 and the bending guide pin 21 is released, the hinge pin 12 can move forward along the side plate B1 of the cargo box B in accordance with the movement of the door door and the movable member MB. The door is also retracted toward the front (arrow A2' in the figure).

In this way, when closing the door stored in the front along the side plate B1, first, force is applied to pull the door backward. At the same time, when a force is applied in the closing direction, the movement of the hinge pin 12 follows the movement of the movable block MB until the opening degree of the door reaches a predetermined opening degree θ2. Predetermined opening degree θ2
In this case, the guide block 14 comes into sliding contact with the tip of the bending guide pin 21 and the trajectory K of the hinge pin 12 is regulated, so that the hinge pin 12 will move accurately along the predetermined trajectory K from now on. Therefore, when the opening degree of the door becomes less than the predetermined opening degree 01, the curved guide pin 21 restricts the movement of the hinge pin 12, so that from then on until the door is fully opened,
The door is closed by rotating around the hinge pin 12 which is stationary in the restrained position. When the hinge pin 12 is restrained, the gap d between the pillar material B2 and the door is kept constant, so the seal packing SP can accurately seal the gap d.

Another embodiment The curve guide pin 21 is arranged to protrude above the hinge 10 and engage with the extension of the hinge pin 12, and at the same time, there is a parallel gap d1 between the hinge pin 12 and the guide pin 15.
It may also be inserted through (FIG. 3). However, it is assumed that the guide pin 15 is fixed to the movable piece 13 in parallel to the hinge pin 12. Since the guide pin 15 is a member independent of the movable piece 13, it is possible to easily make delicate adjustments to the mounting position.

For the hinge pin 12, two curved guiding hinges 21.2
1 can also be used (Figure 4).

Since the hinge pin 12 can be restrained at two locations, upper and lower, the door in the closed state can be held stably and strongly. Here, the guide block 14 is used as a guide member equivalent to the guide bin 15 in the previous embodiment by extending in the vertical direction.

The curve guide pin 21 is provided to protrude from the back side of the movable piece 13, and the guide hole 13a paired with the curve guide pin 21 can be formed in the pillar material B2 which is the fixed member (fifth
figure). The guide hole 13a has its entrance side widened in a trumpet shape to facilitate the insertion of the curved guiding pin 21 (this is preferable). Since it can also be restrained in the vertical direction, it is possible to further improve the stability of the door when it is fully closed.

The curved guide pin 21 in FIG. 4 has a curved outer peripheral surface 2.
2a, and the guide block 14 shown in the figure can be replaced with protrusions 13b, 13b formed integrally with the movable piece 13 (FIG. 6).

Since the regulating member 22 can be formed of a plate material having a sufficient thickness, its strength can be easily increased to the necessary and sufficient extent, unlike the curve guide pin 21 whose radius dimension is restricted. Note that the regulating member 22 can be provided only above or below the hinge pin 12, or both above and below, and the protrusion 13b of the movable piece 13 corresponds to the regulating member 22. It shall be possible to form one or two pieces. However, in order to share the movable piece 13 with the left and right doors DSD, the protrusion 13b is placed in the vertical direction of the movable piece 13 as shown in FIG. 6, regardless of the number of regulating members 22 used. It is convenient to form a pair.

Note that this invention can be applied not only to the door of the loading box B of a pan-type truck, but also to similar applications in which the hinge pin 12 moves along a substantially arcuate trajectory K. Needless to say, it is. Examples of such applications include, for example, buildings including warehouses and storerooms;
Alternatively, a library, a safe, or any other item with an opening/closing door may be mentioned.

As described in detail, according to the present invention, when the hinge pin moves along a substantially arcuate trajectory when the door is opened and closed, the movable piece and the end surface on the hinge side of the door face each other when the door is fully closed. By protruding a curved guide pin on either side of the fixing member and restricting movement of the hinge pin below a predetermined opening degree of the door, the door can be opened in its fully closed state. Since the hinge pin is restrained, it is possible to hold the closed position extremely stably, and the relative relationship with the fixed member is maintained constant, so it is possible to attach a seal gasket between the fixed member and the fixed member. This has the excellent effect of effectively eliminating the possibility of damaging the door or hindering the smooth rotation of the door.

In addition, since the tip of the curved guide pin is formed into a hook shape, it can act to strengthen the hinge against force in the direction of opening the door from the closed state. Therefore, it also has the practical effect of being able to effectively prevent the door from opening or jamming.

Note that the same effect can be obtained even if the curved guiding pin is changed to a regulating member having a curved outer circumferential surface. It has an excellent effect of being able to create something.

[Brief explanation of the drawing]

Fig. 1 and Fig. 2 show examples, Fig. 1 is a perspective view of the main part,
FIG. 2 is an explanatory diagram of the operation. 3 and 4 are views corresponding to FIG. 1 showing different embodiments, respectively. FIG. 5 is a cross-sectional view showing still another embodiment. FIG. 6 is a diagram corresponding to FIG. 1 showing yet another embodiment. FIG. 7 is a schematic plan view illustrating the state of use. D...Door K...Trajectory θ1...Predetermined opening degree 1
0...Hinge 11...Fixed piece

Claims (1)

[Scope of Claims] 1) The fixed piece and the movable piece are rotatably connected via a hinge pin, and the hinge pin moves along a substantially arcuate trajectory when the door is opened and closed. A curved guiding pin is provided protrudingly on either one of the movable piece and a fixed member that faces the hinge side end face of the door when it is fully closed, and the curved guiding pin is configured to move the hinge pin when the opening degree of the door is below a predetermined opening degree. A hinge characterized by being designed to restrain. 2) The hinge according to claim 1, wherein the bending guide pin projects from the fixed member and is inserted into a guide hole formed in the movable piece. 3) The bend guide pin projects from the fixed member, engages with the extension of the hinge pin, and is located in a parallel gap between the hinge pin and a guide member fixed to the movable piece parallel to the hinge pin. The hinge according to claim 1, which is inserted through the hinge. 4) The movable piece has a guide block on the back surface, and the guide block slides on the tip of the bending guide pin to regulate the locus of the hinge pin. The hinge described in Section 3 or Section 3. 5) The hinge according to claim 1, wherein the bending guide pin is provided protruding from the back surface of the movable piece and is inserted into a guide hole formed in the fixed member. 6) The fixed piece and the movable piece are rotatably connected via a hinge pin, and when the door is opened or closed, the hinge pin moves along a substantially arcuate trajectory, and the hinge side end face of the door is A regulating member having a curved outer circumferential surface is protruded from the fixed member facing the door when the door is fully closed, and the outer circumferential surface restricts movement of the hinge pin below a predetermined opening of the door. No. 7) The movable piece forms a protrusion parallel to the hinge pin, and the protrusion comes into sliding contact with the outer peripheral surface to regulate the locus of the hinge pin.
Hinge listed in section. 8) The hinge according to claim 7, wherein the protrusion is formed in the vertical direction of the movable piece.