JPS61294077A - Door open-close hinge device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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 the podium side pillar, and 5 is a bracket fixed to door A. The former bracket l and links 2, 3.4 are pins 22
, 32.

They are rotatably connected at points 42 and 43 to form a parallel link mechanism. Furthermore, the latter bracket 5 is connected to the link 3,
The bracket 5 is rotatably connected by a connecting shaft 43 of No. 4, and is provided with a guide pin 55 fixed to the bracket 5 itself. Guide pin 5
5 is slidably coupled within an 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 a position of 43° while drawing an arc with the link 3 as the radius.
The parallel link mechanism rotates counterclockwise as the link 2 connected to the parallel link mechanism is pulled. At this time, the bracket 5 becomes a guide.

The engaging relationship between the elongated hole 25 and the guide pin 55 causes interlocking rotation around the shaft 43.

As a result of this operation, the door A first swings forward and outward according to the shape of the elongated hole 25 and opens, widening the space for getting on and off at the feet until it reaches the half-open point A', and then opens even further to swing around the axis 43 degrees. and reaches the A I+ position, which is the fully open point.

[Problems to be Solved by the Invention] However, in the conventional automobile door hinge, the link 4 is a parallel link disposed at an α angle, approximately 90', with respect to the longitudinal axis 2C of the inner link 2, and the shaft 43 and the shaft 55 Since the door posture is regulated by , the line B connecting the shafts 43 and 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 require a large space W2 in the thickness direction for hinge installation between the door and the pillar, sacrificing the thickness dimension W1 of the pillar, resulting in a narrow cross-sectional shape of the pillar and a decrease in rigidity. There are drawbacks.

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 A at the base of the door becomes line a, and the opening/closing direction of the door changes greatly at point A when the door is half open. The disadvantage is that it is not good.

The present invention has been made to solve the above-mentioned drawbacks, and it is possible to increase the space for getting on and off the vehicle without increasing the space in the thickness direction for the hinge between the door and the pillar, and also to increase the opening of the door. The purpose of this invention is to provide a door opening/closing hinge device.

[Technical Means for Solving the Problems] The present invention provides a link in which one end of the link extending in the longitudinal direction of the vehicle from the outside within the thickness of the door is pivoted to the vehicle pillar side shaft, and the other end is pivoted to the first door connecting shaft. A supporting outer link and two links placed within the thickness of the door at positions diagonally inward from the outer link are connected by a shaft, and the other end of one of the links is connected to the vehicle. an inner link that is pivoted to the pillar side shaft; and a connecting link that is pivoted to the door second connection shaft, the other end of which is located inside the door first connection shaft; The door opening/closing hinge device comprises a connecting means in which the inner link and the door side have a locking relationship at three or more places, share their respective roles without interfering with each other, and regulate the posture of the door. The above objectives were achieved.

[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 length can be adjusted. It is small in dimension, particularly in the longitudinal direction of the door, and is housed between the inner panel and 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 initially engages the inner link and the door side provides a wide space for getting in and out at the foot of the door. The initial engagement is interrupted when the door is approximately half open. Just before this mating relationship is severed,
The next mating relationship is established.

By pushing the door further apart, the outer ring 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.

[Example] The present invention will be described in detail below based on the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention. This figure shows the door opening/closing hinge device viewed diagonally downward from the inside of the door. The outer link 101 extends in the longitudinal direction of the vehicle body 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 door first connecting shaft 10.
It is pivotal to 3. The vehicle pillar side shaft 102 is rotatably held in the vertical direction of the vehicle by pillar brackets 105 and 105 fixed to the pillar 104 (see FIG. 2).
The inner link 108 and the connecting link 1 are rotatably held by brackets 107 and 107 fixed in the downward direction of the L. As shown in FIG.
09' is placed. connecting link 10
9, as shown in FIGS. 3 and 5, is constructed by bending a single plate and interposing an inner link 108 between the inner surfaces of the plates 109a and 109b, which are open ends. One ends of both links 108 and 109 are rotatably connected by a shaft 110. The other end of the inner link 108 is rotatably supported by a shaft 112 that fits into a placket 111 fixed to the pillar 104, and the other end of the connecting link 109 is attached to the inner panel 113 of the door 106.
The door is rotatably supported by a second door connecting shaft 115 that traverses a bracket 114 having a U-shaped cross section that is fixed to the door. These links tot, 108, 109, pillar 104 and door 106 are connected to shafts 102, 103, 1
10°112.115 constitutes a five-joint link mechanism.

The connecting means 116 that regulates the posture of the door is the inner link 1.
The extension part 117 of 08 and the above-mentioned bracket 114 having a U-shaped cross section fixed to the inner panel 113 are configured to have a two-tube fitting relationship. The joint relationship of l is the door third connecting shaft 118 fixed to the bracket 114 and the first opening guide groove 119 formed in the extension part 117. The first opening guide groove 119 is open in the extension direction of the inner link 108, runs substantially parallel to the inner link 108, and disconnects from the third door connecting shaft 118 when the door 106 is half-open. It has a certain length. 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 fitting member is a fixing pin 120 fixed to the end of the extension 117 of the inner link 108 and a second opening guide groove 122 formed in a guide block 121 fixed to the bracket 114. The second opening guide groove 122 opens in the same direction as the first opening guide groove 119, and the groove runs in a direction that intersects the groove of the first opening guide groove 119, so that the fixing pin 120 engages when the door 106 is partially opened. It has a length that reaches the bottom of the groove when the door 106 is fully opened. The fixing pin 120 is attached to the extension part 1 so as to have a locking relationship with the second opening guide groove 122 when the door 106 is half-opened.
It is fixed at 17.

The extension portion 117 is connected to the first opening guide groove 11 as shown in FIG.
9 and the fixing pin 120 have a semi-circular outline, and the outer periphery is a cam surface 123, which cooperates with the roller 124 rolling on the cam surface 123 to open the door 106 half-open or fully open. Note 1 to make you aware of
It has an angle of 25°126.

As shown in FIGS. 3 to 5, the roller 124 is connected between the inner surfaces of the connecting link 109 (7) plates 109a and 109b,
It is arranged so as to roll against the cam surface 123 of the inner link 108. The axis of this roller 124 is supported by both ends 127a of a check spring 127 passing through long holes 109c formed in the plates 109a, 109b of the connecting link 109(7). The long hole 109c has the roller 124 connected to the cam surface 123 and the notch 125.
, 126 can be moved up and down in the longitudinal direction of the link. As shown in FIGS. 1, 3, and 4, the check spring 127 is made by bending a single torsion bar symmetrically, and the locking portions 127b, which are located symmetrically with both ends 127a, are connected to the door opening. In order to engage with a recess 109d formed in the connecting link 109 in the vicinity of the two connecting shafts 115 and provide a spring effect, the space between the both ends 127a and the locking portion 127b is bent significantly in the vertical direction. This chain spring 127 provides a biasing force that causes the roller 124 to come into contact with the cam surface 123.

This door opening/closing hinge device is the inner panel 1 of the door 106.
13 and are covered by trims 128 provided on the inside of the door 106.

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 10B, 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, the position of the door 10B indicated by the solid line is the fully closed state, and the position 10B indicated by the two-dot chain line is the fully closed state.
6', 106"° are half open and fully open. Door 10
6 from fully closed to fully open 106'' will be explained. When a force F in the opening direction is applied to the door 106 as shown in Fig. 2, the outer link 101 rotates counterclockwise about the shaft 102 as the pivot axis. The rotation operation starts at this time.
The door first connecting shaft 103 attempts to extend outward, drawing a trajectory a of the yen value with the outer link lO1 as the radius.

Due to this movement and rotation, the second connecting shaft 115 also rotates around the shaft 112 of the inner link 10B, and the connecting link 1
09, and further regulation by the third connecting shaft 118 and the regulation cam 119, it passes on the trajectory C.

In this way, the door 106 is opened according to the two trajectories a and C regarding the first and second connecting shafts 103 and 115,
When it first opened, there was plenty of space for passengers to get on and off the train.

The door posture is maintained when the door second connecting shaft 115, which is the pivot axis of the connecting link 109 connected to the inner link lO8 when the door 106 is opened, is aligned with the first opening guide groove 119 of the extension part 117 of the inner link 108. It is regulated by a triangular shape connecting the door third connecting shaft 118 in the relationship and the shaft 110 connecting the inner link 108 and the connecting link 109.

The inner link 10 is moved by the force F in the opening direction of the door 106.
8 rotates counterclockwise about the shaft 112 as a pivot axis and draws a trajectory with the inner link 108 as the radius. Accordingly, the triangular shape formed by the second door connecting shaft 115, the third door connecting shaft 118, and the shaft 110 changes shape.

Due to the counterclockwise rotation of the inner link 108, the door third connecting shaft 1, which was at the bottom of the first opening guide groove 119 when the door was opened,
18 moves in the direction of extension of the inner link 108, and the second door
A line connecting the connecting shaft 115 and the third door connecting shaft 118 protrudes outward. This action 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.
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, which is constant with the second door connecting shaft 115. Door third connecting shaft 11B having a distance of
slides along the first opening guide groove 119, thereby moving in a trajectory d. Furthermore, the fixed bin 120 moves along 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 increases. Become. During this time, the roller 124 rolls on the cam surface 123 of the inner link 108, and when the shafts 110, 115, 118 forming the triangle come to positions 110', 115', and 118' where they are half open, the notch 125 I feel depressed. The filling at this time allows the door operator to know the half-open state of the door 106''.

When the door 106' is in a half-open state, the third door connecting shaft 108' completely breaks the engagement with the first opening guide groove 119' and passes through, and the fixed bin 120 instead moves into the second opening guide groove 12'.
It enters into a congruent relationship with 2°. Note that this fixed bin 120 and the second
The engagement relationship with the opening guide groove 122' is that of the third connecting shaft 10.
Immediately before the groove 8' completely breaks off the relationship with the first opening guide groove 119'', the locking relationship has already entered.

By further pushing open the door 106'', the fixing pin 1
20' approaches the bottom of the groove 122' along the second opening guide groove 122'. The second door connecting shaft 115° and the second door connecting shaft 1, which had a slightly larger inclination with respect to the longitudinal direction of the vehicle
15' further stands up, and the opening angle of the door 106' increases. Stopper piece 101 of outer link 101
a moves to point 101a'', and stopper 105 of section 105
At the same time as the fixing pin 120'' reaches the bottom of the second opening guide groove 122°, the opening degree of the door 106° becomes maximum.At this time, the roller rolling on the cam surface 123 124 falls into the next notch 126. Door 106° is indicated by a two-dot chain line.

are triangular positions 112, 115°° formed by three axes 112, 115, 120.

Full opening is ensured by 120°.

[Effects of the Invention] As explained below, according to the present invention, the second door connecting shaft is provided inside the first door connecting shaft that pivotally supports the outer ring to pivotally support the connecting link, and further By rotatably connecting to the inner link, the angle α between the inner link and the connecting link is in a small folded state when fully closed, and the α angle increases as the door opens, so the link length does not need to be too long. Instead, it is only necessary to make the door space secured by the door check device in the current door into a recessed seat and arrange it in the area formed by the door trim, so that a large Wl 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 link can be connected in a direction perpendicular to a line connecting these two axes. 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 arranged 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 second engagement relationship can be established independently of the first engagement member, so the degree of opening of the door can be set freely, and the degree of opening of the door can be further adjusted. It can be taken widely. Another advantage is that when the door is closed, it does not require much space in the longitudinal direction of the door.

In this type of door hinge mechanism, -M 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.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is a front view of FIG. 1.
Fig. 4 is a sectional view taken along IV-IV in Fig. 2, Fig. 5 is a sectional view taken along v-■ in Fig. 3, Fig. 6 is a sectional view taken along -■ in Fig. 3, and Fig. 7 shows a conventional device. FIG. 101... Outer link. 102.112...Vehicle pillar side axis. 103... Door first connection shaft, 104... Pillar. 106...door, 10B...inner link. 109...Connecting link. 110... shaft, 115... door second connection shaft. 116...Connection means, 117...Extension part. 118...Door third connection shaft. 119...first opening guide groove. 120...Fixing pin. 122...Second opening guide groove. Figure 1 +15-11 Do 1 Hot R2t! ! ) v @ Figure 6 Figure 7 (1) [Procedure for the fitting relationship in the three locations on page 8, line 12 of the specification] Juho Seisho (self-proposal) July 16, 1986

Claims (1)

[Claims] One end of the link extending in the longitudinal direction of the vehicle from the outside within the door thickness is pivoted to the vehicle pillar side shaft, and the other end is pivoted to the door first connecting shaft, and the outer link is substantially parallel diagonally inward from the outer link. In the moved position, two links placed within the door thickness are connected by a shaft, and the other end of one of the links is pivoted to the vehicle pillar side shaft, and the above two links. A connecting link whose other end is pivoted to a second door connecting shaft located inside the first door connecting shaft, and the inner link and the door side are in an engaging relationship at two or more places. A door opening/closing hinge device consisting of a joint and a connecting means that share their respective roles without interfering with each other and regulate the posture of the door.