JPH0417274B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a door opening/closing hinge device that uses a link mechanism to ensure a wide space for getting in and out of a vehicle at the initial stage when the door of the vehicle is opened.

[Prior Art] As a device of this type, there is an automobile door hinge disclosed in Japanese Utility Model Publication No. 58-36766. This device is shown in FIG. In the figure, 1 is a bracket fixed to a body-side pillar, and 5 is a bracket fixed to a door A. The former bracket 1 and
Links 2, 3, 4 are pins 22, 32, 42, 43
are rotatably connected to form a parallel link mechanism. Furthermore, the latter bracket 5 is linked to link 3,
The bracket 5 is rotatably connected by a connecting shaft 43 of No. 4, and the bracket 5 itself is provided with a fixed guide pin 55.
The guide pin 55 is slidably coupled within the elongated hole 25 provided at the extended end of the link 2.

In this automobile door hinge, when the door A is operated in the opening direction, the shaft 43 of the bracket 5 moves to the position 43' while drawing an arc with the link 3 as the radius.
The link 2, which is connected to the link 4 by the shaft 42, is pulled and the parallel link mechanism rotates counterclockwise. At this time, the bracket 5 is interlocked and rotated around the shaft 43 due to the engagement relationship between the elongated hole 25 serving as a guide and the guide pin 55.

By this action, the door A initially swings forward and outward according to the shape of the elongated hole 25 and opens, widening the space for passengers to get in and out of the vehicle, while remaining at the half-open point.
It reaches the A' position, opens further, rotates around the shaft 43', and reaches the A'' position, which is the fully open point.

[Problem to be solved by the invention] However, conventional automobile door hinges are
is α angle with respect to the longitudinal axis 2c of the inner link 2,
It is a parallel link arranged at approximately 90 degrees, and since the door posture is regulated by the shaft 43 and shaft 55, the shaft 43
A line B connecting the axis 55 and the axis 55 is inclined at an angle of β with respect to the longitudinal axis of the vehicle. Since this β angle is relatively large,
Conventional door hinges have the disadvantage that they require a large space W ₂ in the thickness direction for the hinge arrangement between the door and the pillar, sacrificing the thickness dimension W ₁ of the pillar, making the cross-sectional shape of the pillar narrower and reducing its rigidity.

It is desirable for this type of door hinge to have an elongated hole that regulates the posture of the door substantially parallel to the B axis, and the degree to which the door opens also depends on the length of this elongated hole. However, since conventional door hinges have a relatively large β angle on the B line, when the door is widened, the elongated hole extends toward the interior, requiring more thickness space, making it difficult to swing the door outward. The disadvantage is that it cannot be done. Furthermore, conventional door hinges are constructed so that the locus of the _two points at the base end A of the door is line a, and the opening/closing direction of the door changes greatly at point A' when the door is half open, so when the door is opened/closed, it becomes difficult to operate. The drawback is that it doesn't feel good.

The present invention has been made to solve the above-mentioned drawbacks, and provides a door opening/closing hinge that increases the space for getting on and off the foot without increasing the space in the thickness direction of the hinge between the door and the pillar, and also widens the opening of the door. The purpose is to provide equipment.

[Technical Means for Solving the Problems] In order to achieve the above object, the present invention has a door that is disposed on the outside within the thickness of the door, one end of which is pivoted to the vehicle first pillar side shaft, and the other end of which is disposed on the outside of the door thickness. Outer link 1 extending in the longitudinal direction of the vehicle and pivotally supported on the first door connecting shaft
01, and an inner link 108 disposed within the thickness of the door at a position substantially parallel to the outer link diagonally inward and having one end pivoted to the vehicle second pillar side shaft.
is disposed within the thickness of the door at a position substantially parallel to the outer link diagonally inward, one end is rotatably connected to the other end of the inner link by a shaft 110, and the other end is connected to this shaft and the vehicle. Between the second pillar side axes, it is pivoted on the door second connecting shaft, which is located inside the door first connecting shaft and outside the inner link, and closer to the inner link when the door is fully closed. A connecting link 109 located on the outside, and an extension of the other end of the inner link located near the outside of the shaft that is provided on the door side and connects the inner link and the connecting link when the door is fully closed and when the door is approximately half open. A third door connecting shaft 118 located on the inner link, a fixing pin 120 fixed to the other end side extension of the inner link, and a fixing pin 120 formed on the other end side extension of the inner link to prevent the door from being fully closed. a first opening guide groove 119 that engages with the third door connecting shaft to regulate the opening/closing posture of the door while the door is in the half-open state; It is characterized by having a second opening guide groove 122 that engages with a pin to regulate the door opening/closing posture.

[Function] The door opening/closing hinge device is in a folded state with a small angle α between the inner link and the connecting link when the door is fully closed, and since the connecting means that regulates the posture of the door is divided, the door thickness and It has a small dimension in the longitudinal direction, particularly in the longitudinal direction of the door, and is housed between the inner panel and the trim of the door. When the door is opened, the outer link stands up and the α angle increases, so that the connection means that first establishes a fitting relationship between the inner link and the door side allows a wide space for getting in and out at the foot of the door. The initial mating relationship is broken when the door is approximately half open. Immediately before this fitting relationship is terminated, the next fitting relationship is established.
By pushing the door further apart, the outer link stands up, and the opening angle of the door is increased by the subsequent fitting relationship. Since the connecting means is divided, the state of each fitting relationship can be changed freely, and the posture of the door can be controlled over a wide range.

[Examples] Examples of the present invention will be described below based on the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention. This figure is a view of the door opening/closing hinge device looking diagonally downward from the inside of the door. The outer link 101 extends in the longitudinal direction of the vehicle from the outside within the thickness of the door, one end of which is pivotally supported on the vehicle pillar side shaft 102, and the other end is pivotally supported on the first door connecting shaft 103. The vehicle pillar side shaft 102 is rotatably held by pillar brackets 105, 105 fixed to the pillar 104 (see FIG. 2) in the vertical direction of the vehicle, and the first door connecting shaft 103 is similarly held in the vertical direction of the door 106. bracket 10 fixed to
7, 107, it is rotatably held. As shown in FIG. 2, an inner link 108 and a connecting link 109 are arranged at positions substantially parallel to the outer link 101 in an obliquely inward direction. Connecting link 109 is the third
As shown in the drawings and FIG. 5, one plate is bent and an inner link 108 is interposed between the inner surfaces of plates 109a and 109b, which are open ends. One end of both these links 108 and 109 is the shaft 1
They are rotatably connected at 10. The other end of the inner link 108 is rotatably supported by a shaft 112 that fits into a bracket 111 fixed to the pillar 104, and the connecting link 10
The other end of the door 106 is rotatably supported by a second door connecting shaft 115 that crosses a bracket 114 having a U-shaped cross section and fixed to the inner panel 113 of the door 106. These links 101, 10
8,109 and pillar 104 and door 106
The shafts 102, 103, 110, 112, and 115 constitute a five-joint link mechanism.

The connecting means 116 that regulates the posture of the door is connected to the extension part 117 of the inner link 108 and the inner panel 11.
The bracket 114, which has a U-shaped cross section, is connected to the bracket 114 in two stages. The first stage connection is bracket 1
14 and the first opening guide groove 11 formed in the extension part 117.
This is the fitting with 9. The first opening guide groove 119 is open in the extension direction of the inner link 108, and the groove 119 runs substantially parallel to the inner link 108, and is engaged with the third door connecting shaft 118 when the door 106 is partially opened. It has a length that is long enough to cut off. The third door connecting shaft 118 is fixed to the bracket 114 so as to be located at the bottom of the first opening guide groove 119 when the door 106 is fully closed. The second stage connection is the extension part 1 of the inner link 108.
17, and a second opening guide groove 122 formed in a guide block 121 fixed to the bracket 114.
This is the mating with. The second opening guide groove 122
It opens in the same direction as the opening guide groove 119, and the groove runs in a direction that intersects the groove of the first opening guide groove 119, and the fixing pin 120 is engaged when the door 106 is half opened, and when the door 106 is fully opened. It has a length that reaches the bottom of the groove. The fixing pin 120 is connected to the second opening guide groove 1 when the door 106 is partially opened.
22 and is fixed to the extension portion 117 in an engaging relationship with the extension portion 22 .

As shown in FIG. 2, the extension part 117 has a semi-circular outline except for the part having the first opening guide groove 119 and the fixing pin 120, and its outer periphery is a cam surface 123. Notches 125 and 12 cooperate with the moving roller 124 to make the door 106 conscious of half-opening and fully opening.
6.

The roller 124 is connected to the plates 109a and 109b of the connecting link 109 as shown in FIGS. 3 to 5.
It is arranged so as to roll in contact with the cam surface 123 of the inner link 108 between the inner surfaces. The axis of this roller 124 is the connecting link 109
Long holes 1 formed in the plates 109a and 109b of
The check spring 127 is supported by both ends 127a of the check spring 127 passing through the spring 09c. Long hole 109c
The roller 124 is connected to the cam surface 123 and the notch 125,
126 is opened in the longitudinal direction of the link so that it can be moved up and down. The check spring 127 is the first
As shown in FIGS. 3 and 4, a locking portion 127 is formed by symmetrically bending a single torsion bar, and is located at a position symmetrical to both ends 127a.
b is a recess 10 formed in the connecting link 109 near the door second connecting shaft 115;
9d, and is bent greatly in the vertical direction between both ends 127a and the locking portion 127b in order to provide a spring effect. This check spring 1
27 provides a biasing force to the roller 124 to bring it into contact with the cam surface 123.

This door opening/closing hinge device is located in a recess formed in the inner panel 113 of the door 106.
6 is covered by a trim 128 on the inside.

A seal 129 fixed to the door 106 prevents dust from entering between the door 106 and the pillar 104, as shown in FIG. The seal 129 is fixed to the door 106 between the outer link 101 and the inner link 108, but it can also be fixed to the door 106 so as to come into contact with the pillar 104 when the door 106 is closed on the outside of the outer link 101. In this case, it is possible to prevent dust from entering the door opening/closing hinge device.

Next, the operation of the door opening/closing hinge device according to the present invention will be described with reference to FIG. In the figure, door 1
The position 06 indicated by a solid line is fully closed, and the positions 106' and 106'' indicated by two-dot chain lines are half open and fully open. Door 106 is fully closed to fully open 106''
Explain the movements leading up to this. As shown in FIG. 2, when a force F in the opening direction is applied to the door 106, the outer link 101 starts rotating counterclockwise about the shaft 102 as a pivot axis. At this time, the door first connecting shaft 103 attempts to extend outward while drawing a circular arc locus a having the outer link 101 as its radius. At the same time as this movement, the second connecting shaft 115 also moves.
Rotation of the inner link 108 around the axis 112, development of the angle α between the inner link 108 and the connecting link 109,
Further, due to the restriction between the third connecting shaft 118 and the guide groove 119, it passes on the trajectory c. In this way, the first
The door 106 is opened under the control of the two trajectories a and c regarding the second connecting shafts 103 and 115, and when the door 106 is opened, a large space for getting in and out is provided at the feet.

The door posture is inner link 1 when door 106 is opened.
Connecting link 10 connected to 08
9, a second door connecting shaft 115 serving as a pivot shaft;
Door third connecting shaft 1 in engagement with the first opening guide groove 119 of the extension part 117 of the inner link 108
18 and a shaft 110 that connects the inner link 108 and the connecting link 109.

Due to the force F in the opening direction of the door 106, the inner link 108 rotates counterclockwise about the shaft 112 as a pivot axis, drawing a trajectory b having the inner link 108 as a radius. Along with this, the door second connecting shaft 115,
The triangular shape formed by the door third connecting shaft 118 and the shaft 110 changes shape.

As the inner link 108 rotates counterclockwise, the door third connecting shaft 118, which was at the bottom of the first opening guide groove 119 when the door was opened, moves in the direction of extension of the inner link 108, and the door second connecting shaft 115 and the door third connecting shaft 118 move in the direction of extension of the inner link 108. A line connecting the three connecting shafts 118 protrudes outward. This operation allows more space for passengers to get in and out of the vehicle. The inner link 108, which was initially almost parallel to the longitudinal direction of the vehicle, is now the outer link 1.
When it stands up with the counterclockwise rotation of 01,
The movement of the connecting link 109 is regulated by the shaft 110, and the second door connecting shaft 115 draws a trajectory c, and the third door connecting shaft 118, which has a certain distance from the second door connecting shaft 115, serves as the first opening guide. Groove 1
By sliding along 19, it moves along a trajectory d. Further, the fixing pin 120 moves in a trajectory e. The line connecting the second door connecting shaft 115 and the third door connecting shaft 118, which was initially parallel to the longitudinal direction of the vehicle, becomes more inclined as the inner link 108 rises, and the opening angle of the door 106 becomes larger. Become. During this time, the roller 124 moves the inner link 10
8, and the shafts 110, 115, 118 forming a triangle are in a half-open state.
When it reaches the positions 0', 115', and 118', it falls into the notch 125. Due to the feeling at this time, the door operator can move the door third connecting shaft 118' to the first opening guide groove 11 with the door 106' in the half-open state.
The fixing pin 120 completely breaks off the engagement relationship with the second opening guide groove 122' and penetrates through, and the fixing pin 120 instead enters an engagement relationship with the second opening guide groove 122'. Note that this fixing pin 120 and the second
The engagement relationship with the opening guide groove 122' has already entered into the engagement relationship immediately before the third connecting shaft 108' completely breaks off the relationship with the first opening guide groove 119'.

Furthermore, by pushing open door 106',
The fixing pin 120' approaches the bottom of the groove 122' along the second open guide groove 122'. In the half-open state, the line connecting the shaft 110', which is slightly inclined with respect to the longitudinal direction of the vehicle, and the third door connecting shaft 118' further stands up, and as the door approaches the fully open state, the door 1
The opening angle of 06' increases. Outer link 10
1 stopper piece 101a moves to point 101a',
The opening degree of the door 106'' reaches its maximum when the fixing pin 120'' reaches the bottom of the second opening guide groove 122'' at the same time as it comes into contact with the stopper 105a of the bracket 105. At this time, the opening degree of the door 106'' reaches its maximum. The roller 124, which is
Full opening is ensured by the triangular positions 112, 115'', 120'' constituted by 15, 120.

[Effects of the Invention] As described above, according to the present invention, the second door connecting shaft is provided inside the first door connecting shaft that pivotally supports the outer link to pivotally support the connecting link, and further, By rotatably connecting the inner link and the connecting link, the angle α between the inner link and the connecting link becomes a small folded state when the door is fully closed, and the α angle increases as the door opens, so the link length does not need to be too long. First, it is sufficient to make the door space secured by the door check device in the current door into a concave seat and arrange it in the area formed by the door trim, so that a large W ₁ of the pillar cross-sectional shape can be secured.

Further, according to the present invention, since the second and third door connecting shafts that regulate the door posture can be provided parallel to the longitudinal direction of the vehicle, the inner link and the connecting shaft can be provided in a direction perpendicular to a line connecting these two axes. The shaft connecting the links can be arranged, and as a result, the shape of the first opening guide groove in which the third door connecting shaft engages can be made into a gentle curve so as to obtain a gentle door opening/closing curve. Furthermore, since the first opening guide groove is disposed in the longitudinal direction of the vehicle, it is possible to rotate the outer link to a position substantially perpendicular to the longitudinal direction of the vehicle when the door is half open, and the door can be swung outward to the maximum extent when the door is half open.

In the present invention, since the connecting means is divided, the first
Since the second engagement relationship can be provided independently of the engagement relationship, the degree of opening of the door can be freely set, and the degree of opening of the door can be further widened. Another advantage is that when the door is closed, it does not require much space in the longitudinal direction of the door.

This type of door hinge mechanism generally requires a check mechanism to check at any door opening angle position and to set the opening/closing operation load. In the present invention, the above-mentioned check mechanism can be included inside the connecting link and the inner link. Since the check mechanism uses the frictional force of the rollers to set the opening/closing load, the ability to place these parts on the indoor side of the seal means that sand, water,
There is no need to worry about the sliding load becoming heavy due to the influence of the usage environment such as freezing, and this has the secondary effect of stabilizing the opening/closing operation force.

Furthermore, when operating the door from the closed state to the open state, the movement of the door around the door first connecting shaft is regulated by the connecting link, so the outer link can reliably rotate around the shaft on both pillar sides. be moved. Therefore, when opening the door, there is no possibility of the door rotating around the first connecting shaft due to the amount of force applied by the operator, thereby increasing the space for getting in and out of the door near the foot of the door. The door opening/closing hinge device of the present invention can be operated reliably by the door opening/closing hinge device.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of FIG. 1, FIG. 3 is a front view of FIG. 1, and FIG. 4 is a cross-sectional view of FIG. 2. , FIG. 5 is a cross-sectional view of FIG. 3, and FIG. 6 is a cross-sectional view of FIG. 3.
7 is a sectional view showing a conventional device. 101... Outer link, 102, 112...
Vehicle pillar side shaft, 103...Door first connection shaft, 1
04...Pillar, 106...Door, 108...Inner link, 109...Connecting link,
110...shaft, 115...door second connection shaft, 11
6... Connection means, 117... Extension part, 118...
Door third connecting shaft, 119...first opening guide groove,
120...Fixing pin, 122...Second opening guide groove.

Claims (1)

[Claims] 1. An outer link 101 extending in the longitudinal direction of the vehicle, which is disposed on the outside of the door thickness, has one end pivoted to the vehicle first pillar side shaft, and the other end pivoted to the door first connection shaft; An inner link 108 is disposed within the thickness of the door at a position substantially parallel to the outer link diagonally inward, and one end is pivotally supported to the vehicle second pillar side shaft; It is disposed within the thickness of the door, one end is rotatably connected to the other end of the inner link by a shaft 110, and the other end is located between this shaft and the vehicle second pillar side shaft, inside the door first connecting shaft. and a connecting link 109 located on the outside of the inner link, which is pivotally supported by a second door connecting shaft located near the inner link when the door is fully closed, and a connecting link 109 located on the outside of the inner link. a third door connecting shaft 118 located near the outside of the shaft that connects the inner link and the connecting link when the door is fully closed, and located on the other end side extension of the inner link when the door is approximately half open;
, a fixing pin 120 fixed to the other end side extension of the inner link, and a third door connecting shaft formed on the other end side extension of the inner link between the door fully closed state and the door substantially half open state. a first opening guide groove 119 that engages with the door to regulate the door opening/closing posture;
and a second opening guide groove 1 that is formed on the door side and engages with the fixing pin to regulate the door opening/closing posture between the door substantially half open state and the door fully open state.
A door opening/closing hinge device comprising: 22.