JPH08270301A - Hinge for flap - Google Patents

Abstract

PURPOSE: To hold a flap at a horizontal fully-opened position and open the flap a little automatically to open it when a latch released. CONSTITUTION: A stopper 6 is provided between a pair of hinge plates 4A and 4B which are connected by a hinge shaft 5. The stopper 6 consists of a pair of engaging rings 14, 15 which are fitted externally in the hinge shaft 5 and a compression coil type spring 16. It is connected to the hinge plates 4A and 4B which correspond to each ring 14, 15 in such a manner that it can oscillate. A projection 23 and a groove 24 are provided on adjacent end faces of both rings 14, 15. The fully-closed condition of a flap is held due to engaging force of both 23, 24. A slope which is in contact with the projection 23 is provided adjacent to the groove 24 in the door closed condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge for a flip-up door which is opened and rocked upward from a substantially vertical closed position, for example, a hinge for a trunk door provided above a seat of a vehicle, and more particularly to a hinge for a door. The hinge is provided with a stopper for holding and fixing in a horizontal opened state.

[0002]

2. Description of the Related Art A hinge having a stopper of this kind is known, for example, from Japanese Utility Model Publication No. 5-36941.
This hinge is applied to a folding door, and is provided with a stopper that can hold a position of an adjacent folding door panel in each of a fully opened state and a fully closed state and an opened state of 45 degrees. The stopper is
It has two nodal rings that are fitted around the hinge pin and are vertically adjacent to each other, and a compression coil spring that presses and urges one of the nodal rings toward the other, and engages with the adjacent end faces of both rings by being depressed to each other. It is provided with protrusions and grooves. The hinge of Japanese Utility Model Laid-Open No. 6-25484 also has a stopper having the same effect, although there are some differences in the nodal structure.

[0003]

For example, a trunk door above a seat is opened and closed between a substantially vertical closed position and a substantially horizontal flipped open position. Where,
In order to maintain the closed state, a latch is provided near the swinging tip of the door, and in order to maintain the open state,
A gas damper for supporting the weight of the door is provided, or a spring or the like for opening the door and arbitrarily biasing the door is provided at or near the hinge. If the folding door hinges described above are used instead of these various types of door fittings, the hinge can be used to hold the door in the open position and the closed position, or any position in the middle of opening, thus reducing the cost required for the door fittings. it can.

The problem is that after the latch is released, it is necessary to open the door against the position holding force of the hinge mechanism, so that the door is opened to the outer surface of the swinging tip of the door. The point is that a special handle for this purpose must be provided. However, in doors provided inside a vehicle such as a door for a trunk, it is disliked that a handle or the like projects on the outer surface thereof. This is because there is a problem in appearance and appearance such that the atmosphere inside the vehicle compartment is easily damaged, and injuries due to protrusions are feared for maintaining safety.

An object of the present invention is to provide a hinge provided with a stopper capable of holding and fixing a flip-up door in a substantially horizontal open position, and particularly a hinge suitable for a flip-up door of a vehicle or the like. An object of the present invention is to allow a door to be automatically stepped out by utilizing the repulsive force of a stopper incorporated in a hinge when a latch for maintaining a closed posture is released, and a handle for opening operation is provided on the outer surface of the door. The object is to provide a hinge for a flip-up door that does not have to be provided. An object of the present invention is, when the flip-up door is closed and oscillated by its own weight, it is possible to cancel the inertial force of the door to prevent the door from closing with a pattern, and to reliably prevent fingers from being caught in the door. An object of the present invention is to provide a hinge for a flip-up door having excellent properties.

[0006]

The hinge of the present invention has a pair of hinge plates 4A and 4B and a hinge shaft 5 for connecting both hinge plates 4A and 4B, and between the hinge plates 4A and 4B.
A stopper 6 for holding the door 2 in a substantially horizontal open position is provided. The stopper 6 is fitted onto the hinge shaft 5, and a pair of engagement rings 14 and 15 that swing together with the hinge plates 4A and 4B, and one engagement ring 14 toward the other engagement ring 15. A protrusion 16 and a groove 24 which engage with each other when the door 2 is in the fully open position, and which have springs 16 for pressing and urging.
And a slope 26 for relatively operating the projection 23 in the door opening direction when the door 2 is in the fully closed position. Specifically, the engagement ring 15 provided with a pair of protrusions 23 between the pair of bosses 7 and 72 connected by the hinge shaft 5, and the groove 24.
And an engagement ring 14 having a pair of slopes 26
And the spring 16 are arranged in the order described. The latter engagement ring 1
4 is movably connected along a hinge shaft 5 to a hinge plate 4B on which the ring 14 swings together. Protrusion 23
The opening angle of the door 2 is set to 10 to 30 degrees when the door engages with the operation groove 25 including the slope 26 and stops.

[0007]

When the door 2 is flipped up to be opened in a substantially horizontal posture, the adjacent engaging rings 14 and 15 are engaged with the projections 23 and the grooves 24 provided on the adjacent end faces thereof.
In other words, the pair of hinge plates 4A and 4B have the engagement rings 14
It is held and fixed so that it cannot be rotated relative to the other side through 15, and the stored items can be taken in and out in this state.

When a predetermined pulling down force is applied to the door 2, the engagement force between the projection 23 and the groove 24 is released, and the door 2 can be swung downward and closed. At this time, before the door 2 is completely closed, the projection 23 and the slope 26 contact each other, and the door 2
Block the movement in the closing direction. Therefore, the door 2 is stopped in a slightly opened state from the closed position, and it is possible to prevent fingers from being caught. When the door 2 is pressed against the repulsive force of the stopper 6 and the door 2 is closed, the latch mechanism 3 operates to maintain the closed state. Further, when the latch mechanism 3 is released, the door 2 is automatically stepped on by the action of the repulsive force to be in a slightly open state, and the door 2 can be flipped up by hanging a finger on the end thereof.

[0009]

According to the hinge of the present invention, since the door 2 can be held in the open position against the weight thereof only by the engaging action of the stopper 6 built in the hinge, compared with the conventional door support structure. Thus, the support structure for the flip-up door 2 can be simplified and its cost can be reduced. The protrusion 23 and the slope 26 are provided on the adjacent end faces of the pair of engaging rings 14 and 15.
Since the closing action of the door 2 is braked by the abutting action of the both 23 and 26, it is possible to prevent the fingers from being erroneously caught when the door is closed, and especially in the flip-up door provided in a vehicle that is easily shaken, It is advantageous in that it can be opened and closed safely. When the door 2 is to be opened, the stopper 6 is simply released.
Since the door 2 can be automatically stepped out by the repulsive force of, the door 2 can be opened by placing a finger on the opening start end. That is, since it is not necessary to provide a dedicated handle for opening and operating the door 2, the appearance and appearance of the door 2 can be finished in a clean impression, which is also advantageous in that the safety in the vehicle interior can be maintained.

[0010]

1 to 6 show an embodiment of a hinge according to the present invention, and as shown in FIG. 2, the hinge 1 is applied to a trunk door 2 provided above a seat of a vehicle such as a bus. The case will be described. The door 2 is arranged at the side opening of the trunk, and its upper end is supported by a few hinges 1. The door 2 swings upward about the hinge 1 and a substantially vertical closed position that closes the opening. It can be opened and closed with the open position where is almost horizontal. To maintain the closed state of the door 2, a latch mechanism 3 is provided near its lower end.

In FIG. 3, the hinge 1 includes a pair of hinge plates 4A and 4B, a hinge shaft 5 that connects the hinge plates 4A and 4B so as to be rotatable relative to each other, and a stopper provided between the hinge plates 4A and 4B. 6 and the like. Both hinge plates 4A ・ 4
B is a press-molded product, and integrally forms a pair of bosses 7 and 8 through which the hinge shaft 5 is inserted and a pair of contact claws 9 and 10 that define the opening limit of both hinge plates 4A and 4B. . Of the two hinge plates 4A and 4B, the hinge plate 4A on the left side in the figure is fixed to the opening edge of the trunk with a screw, and the hinge plate 4B on the right side is fixed to the door 2 with a screw. A holding claw 11 having an L-shaped cross section is folded up on the plate surface of the left hinge plate 4A, and a guide wall 12 having a U-shaped cross section is integrally provided on the plate surface of the right hinge plate 4B. These functions will be described later.

The stopper 6 is arranged between the pair of bosses 7 of the fixed hinge plate 4A, and the pair of engaging rings 14 and 15 fitted onto the hinge shaft 5 and the left side of the drawing. It is composed of a compression coil type spring 16 for pressing and urging the engagement ring 14 toward the engagement ring 15 on the right side. The left engagement ring 14 is made of a sintered alloy having a pair of slide arms 18 projecting from one side of the tubular portion 17. By engaging the pair of slide arms 18 with the inner and outer surfaces of the guide wall 12 provided on the hinge plate 4B on the door 2 side (see FIG. 4), the entire engagement ring 14 can be slid and displaced along the hinge shaft 5. Furthermore, when the hinge plate 4B swings open and close, it can swing together. The right engagement ring 15 is made of a sintered alloy formed into a keyhole shape, and the front end of the latch arm 19 protruding laterally is retained by the holding claw 11 of the fixed hinge plate 4A. It can swing together with the hinge plate 4A.

In the assembled state, one boss 7 and both engagement rings 14 and 15 are adjacent to each other along the hinge shaft 5, and a spring 16 is interposed between the engagement ring 14 and the other boss 7. It Most of the spring 16 is housed in a spring receiving hole 20 provided on the inner surface of the tubular portion 17. A washer 21 made of plastic is arranged between the bosses 7 and 8 (see FIG. 1).

In order to hold and fix the door 2 in the open position,
An engagement structure is provided on each of the adjacent end surfaces of the pair of engagement rings 14 and 15. More specifically, as shown in FIG. 5, a pair of radially extending projections 23 are provided on the side of the engagement ring 15 that interlocks with the fixed hinge plate 4A, and the other side of the engagement ring 14 is provided. , A pair of grooves 24 having a U-shaped cross section that extend radially are provided. Further, an operation groove 25 having a V-shaped cross section is provided adjacent to each groove 24, and when the door 2 is at the fully closed position, the projection 23 is stepped on in the door opening direction by one slope 26 of the operation groove 25. Make it possible. In other words, in the fully closed state, the protrusion 23 contacts the position above the slope 26,
The position of the operation groove 25 is set. Further, in order to make the stepping operation smooth, one side surface of the protrusion 23 is formed by a curved surface 23a, and the curved surface 23a is brought into contact with the slope 26. The width dimension of the projection 23 and the groove 24 is increased toward the outer side in the radial direction, so that the mechanical strength of each is sufficiently ensured.

Next, the operation of the hinge 1, especially the operation of the stopper 6, will be described. As shown in FIG. 6A, when the door 2 is in the fully closed state, the protrusions 23 of the engagement rings 14 and 15
The groove 24 is engaged with the groove 24 to prevent the door 2 from swinging downward by its own weight. When the door 2 is pulled down from this state, the engagement ring 14 on the door side is slid and displaced against the urging force of the spring 16, and the groove 24 gradually rides up on the projection 23, and the engagement between the two 23. The combined state is released.
When the engagement ring 14 gets over the protrusion 23, the protrusion 23 enters the operation groove 25 adjacent to the groove 24, and the door 2 continues to close downward and swing.

As shown in FIG. 6 (b), when the door 2 approaches the fully closed position, the slope 26 of the operation groove 25 contacts the projection 23, and the engagement ring 14 receives rotational resistance. Therefore, the door 2 has its own weight and the protrusion 2 pressed by the spring 16.
3 and the repulsive force generated at the abutment surface of the slope 26 are stopped at a position where they balance each other. In order to continue the closing operation of the door 2, it is necessary to push the door 2 toward the closing side beyond the repulsive force. In this way, when the closing operation of the door 2 is braked on the front side of the fully closed position, the door 2 is prevented from being urged and closed with a pattern, and accidents such as accidental pinching of fingers can be prevented.

When the door 2 is completely closed, the latch mechanism 3 operates and catches on a metal fitting on the trunk side (not shown) to maintain the closed state. At this time, the protrusion 23 is in contact with the inclined upper end portion of the slope 26 as shown in FIG. 6C, and the engagement ring 14 on the door side is moved in the door opening direction by the spring reaction force received by the slope 26. It is receiving force.
Therefore, when the release button or the release lever of the latch mechanism 3 is released, the door 2 is stepped in the opening direction and stops in a slightly opened state as shown by the broken line in FIG. As described above, the weight of the door 2, the protrusion 23 and the slope 26
It stops at a position where the repulsive force generated at the contact surface of the is balanced. In this way, when the door 2 is slightly opened and moved at the same time as the opening operation of the latch mechanism 3, the lower end of the door 2 can be lifted up to operate the door 2, so that the door 2 can be opened on the outer surface only for the opening operation. Eliminates the need for a handle.

The opening angle when the latch mechanism 3 is opened and the door 2 is stepped on and stopped can be selected in the range of 10 to 30 °, and more preferably in the range of 15 to 25 °. is there. If the opening angle is small, when the door 2 closes and swings with a large motion inertial force due to, for example, a swing of the bus, fingers may be caught in the door 2. On the contrary, if the opening angle is large, the operation angle for closing the door 2 becomes large and the closing operation becomes troublesome.

The above-described embodiment can be implemented by partially modifying it as follows. The protrusion 23 is used as the engagement ring 14 on the door side.
The groove 24 and the operation groove 25 are provided in the engagement ring 15 on the fixed side. The slope 26 is formed by a convex curved surface or a concave curved surface.
The hinge plates 4A and 4B are each formed by a die-cast molding product. The spring 16 is formed of two or more springs or a combination of two or more springs. One engagement ring 15, two engagement rings 14 adjacent to this, and both rings 14
The stopper 6 is formed by the two springs 16 for pressing and biasing 15, and these are assembled between the pair of hinge plates 4A and 4B. According to such a hinge 1, the repulsive force of the spring 16 can be increased.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a hinge.

FIG. 2 is a cross-sectional view showing an application example of a hinge.

FIG. 3 is an exploded perspective view of a hinge.

FIG. 4 (a) and FIG. 4 (b) are respectively FIG.
3 is a cross-sectional view taken along line aa and line bb in FIG.

FIG. 5 is a side view showing an engagement surface of an engagement ring.

FIG. 6 is an operation explanatory view showing an operating state of a stopper.

[Explanation of symbols]

 2 Doors 4A, 4B Hinge plate 5 Hinge shaft 6 Stopper 14 ・ 15 Engagement ring 16 Spring 23 Projection 24 Groove 25 Operation groove 26 Slope

Claims (3)

[Claims] 1. A pair of hinge plates 4A and 4B and a hinge shaft 5 connecting both hinge plates 4A and 4B are provided, and the door 2 is positioned between the hinge plates 4A and 4B in a substantially horizontal open posture. A hinge provided with a stopper 6 for holding, wherein the stopper 6 is fitted onto the hinge shaft 5 and swings with the hinge plates 4A and 4B.
And a spring 16 that urges and urges one of the engagement rings 14 toward the other engagement ring 15, and the two engagement rings 14 and 15 are provided on the adjacent end surfaces thereof with each other when the door 2 is in the fully open position. A hinge for a flip-up door provided with a projection 23 and a groove 24 to be engaged with each other, and a slope 26 for relatively operating the projection 23 in the door opening direction when the door 2 is at the fully closed position. 2. A pair of bosses 7 connected by a hinge shaft 5.
Engagement ring 15 with a pair of protrusions 23 between
An engaging ring 14 having a pair of grooves 24 and a pair of slopes 26, and a spring 16 are arranged in this order. The latter engaging ring 14 swings with the hinge plate 4B. The hinge for a flip-up door according to claim 1, wherein the hinge is movably connected along the hinge. 3. The opening angle of the door 2 when the protrusion 23 engages with the operation groove 25 including the slope 26 and stops, is 10 to 30 °.
The hinge for a flip-up door according to claim 1 or 2, wherein