JPH072924Y2 - Automotive door hinges - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a vehicle door hinge for swingably supporting a slant door on a vehicle body.

"Prior Art" Conventional door hinges for automobiles include, for example, Jikho Sho 58-
There is one disclosed in Japanese Patent No. 36765-36768.

That is, in each of the above publications, various link mechanisms or cam mechanisms are used to move the base end of the door mainly outward at the initial stage of opening the door, and to secure a foot space without wide opening the tip of the door. The technique to be obtained is disclosed.

[Problems to be Solved by the Invention] The above-mentioned conventional technique was effective in improving the occupant's entry / exitability, but the one using the cam mechanism does not have a check function, and therefore may rattle. There is a problem that there is a problem, and those equipped with a check mechanism regulate the door at the initial stage of opening the door with a check force, so the door may rotate freely depending on the magnitude of the force related to the door. However, there is a problem that the door may not be opened and closed surely.

The present invention has been made by paying attention to such a conventional problem, and by devising the structure to surely regulate the rotation of the door and also having a check function, it is possible to surely and smoothly without rattling. It is an object of the present invention to provide an automobile door hinge capable of opening and closing a door.

[Means for Solving the Problem] The gist of the present invention for achieving such an object is to provide a vehicle door hinge for swingably supporting a slant door type door to a vehicle body, which is fixed to the vehicle body side. A vehicle body bracket, a door bracket fixed to the door side, a first link member erected pivotably at both ends between the vehicle body bracket and the door bracket, and a base end of the door bracket. The first and second auxiliary link members pivotally attached, and the vehicle body bracket and the tip of the first auxiliary link member are erected with both ends pivotally attached, and the vehicle body bracket and the first auxiliary link member are provided. A second link member that constitutes a first four-bar linkage mechanism that displaces the base end portion of the door outward by the first link member at the initial stage of opening the door; a vehicle body bracket and a second auxiliary link member; A second four-bar joint which is erected with its both ends pivotally attached to the front end of the vehicle body, and which cooperates with the first four-bar linkage by the vehicle body bracket, the second auxiliary link member, and the first link member. The third link member that constitutes the link mechanism, the door bracket, and the second link member are provided so as to mutually control the movement, and the second link is concentric with the pivot shaft to the first auxiliary link member. A first sliding contact surface formed in an arc shape on the link member, a first limiting surface fixed to the door bracket so that the first sliding contact surface fits, and a door bracket of the first auxiliary link member. Concentric with the pivot axis of the
A second limiting surface connected to an end of the limiting surface; and a second sliding contact surface formed on the second link member so as to fit the second limiting surface and connected to an end of the first sliding contact surface. The control cam mechanism and the door bracket are provided so that they swing with moderation.The base end is pivotally supported by the door bracket, the tip is elastically supported, and the check sliding surface has uneven edges. A vehicle door hinge includes a check arm having the check arm and a check mechanism provided at the tip of the second auxiliary link member and having a check pin elastically contacting the check sliding surface.

[Operation] To explain from the state where the door is fully closed, when the door is fully closed, the first sliding contact surface of the second link member is fitted to the first limiting surface of the door bracket, and the check pin checks the check arm. It is in elastic contact with the starting point of the sliding surface.

When the door starts to open, the door bracket rotates, and accordingly the second link member also rotates, and the first sliding contact surface provided on the second link member slides on the first limiting surface.

Since the first limiting surface has an arcuate shape concentric with the pivot axis of the second link member to the first auxiliary link member, the second link member can rotate only around this pivot axis. The first auxiliary link member is restricted and stopped by fitting the first sliding contact surface and the first restriction surface.

The rotation of the second link member displaces the first four-joint link mechanism, and the first link member also rotates about the pivotally attached end to the vehicle body bracket, and the second four-joint link mechanism includes the third link member. Rotates together with the first link member, and the base end portion of the door moves so as to be pushed outward until the first sliding contact surface is disengaged from the first limiting surface.

As a result of the base end portion of the door moving outward, a boarding / alighting space is formed near the base end portion of the door.

In the check mechanism, the second auxiliary link member forming the second four-bar linkage rotates about the pivotally attached end to the door bracket, and is attached to the tip of the second auxiliary link member. The pin moves to the intermediate position of the sliding surface while elastically contacting the check sliding surface of the check arm.

When the first sliding contact surface deviates from the first limiting surface, the second sliding contact surface becomes the second sliding contact surface.
Fit on the limiting surface. The second sliding contact surface and the second limiting surface are the first
Is concentric with the pivot axis of the auxiliary link member to the door bracket and the first auxiliary link member is unconstrained.

When the door is further opened, the second sliding contact surface and the second limiting surface move relatively to each other, and the door bracket slightly rotates about the pivot axis of the first auxiliary link member to the door bracket. The first auxiliary link member swings to the extent necessary.

The base end of the door hardly moves outward after the second sliding contact surface is fitted to the second limiting surface, and rotates a small amount to open.

In the check mechanism, the check arm is displaced so as to be pulled with respect to the check pin at the tip of the second auxiliary link member of the second four-bar linkage, and the check pin makes elastic contact with the check sliding surface of the check arm. It moves to the fully open position at the end of the sliding surface.

When the door is fully opened, the base end of the door moves outward and the foot space is wide, so that the passenger can get on and off comfortably.

When closing the fully opened door, in the reverse order of the above,
While the sliding contact surface fits into the second limiting surface and moves, the door rotates in a small rotation to close, and after the first sliding contact surface fits into the first limiting surface, the base end The part moves inward and the door is fully closed.

Contrary to the above, in the check mechanism, the check pin returns from the fully open position at the end of the check sliding surface of the check arm to the start position via the intermediate position.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of the present invention.

As shown in FIG. 4, a slanted door is mounted on the body 10 of the automobile.
15 is provided, and the door 15 is slidably supported by the vehicle body by a door hinge 20.

As shown in FIGS. 1 to 3, the door hinge 20 includes a vehicle body 10
Body bracket fixed to the opening edge 12 of the side door opening 11
The door bracket 40 fixed to the end edge surface 16 of the door 15 is connected to the door bracket 40 by the first four-node link mechanism 50 and the second four-node link mechanism 60 arranged vertically. 40 is swingably supported on the vehicle body bracket 30.

Between the vehicle body bracket 30 and the door bracket 40, both ends are respectively rocked by the pivotal support projections 31 and 32 of the vehicle body bracket 30 and the pivotal support shafts 21a and 21b extending between the pivotal projections 41 and 42 of the door bracket 40. A first link member 21 is installed so as to be pivotally attached so as to be movable.

At the base of the upper and lower pivoting protrusions 41, 42 of the door bracket 40,
The first and second auxiliary link members 5 are provided by the pivot shafts 51a and 61a.
1,61 proximal ends are pivotally attached. The pivot shaft 51a is concentric with the pivot shaft 21a of the first link member 21.

A second link member 52, both ends of which are pivotally mounted via pivot shafts 52a and 52b, is installed between the vehicle body bracket 30 and the tip of the first auxiliary link member 51. The link member 51 and the first link member 21 constitute a first four-joint link mechanism 50 that displaces the base end portion of the door 15 outward at the initial stage when the door 15 is opened.

A third link member 62 whose both ends are pivotally mounted via pivot shafts 62a and 62b is installed between the vehicle body bracket 30 and the tip of the second auxiliary link member 61. The first four by the link member 61 and the first link member 21.
A second four-bar linkage 60 is constructed that cooperates with the bar linkage 50.

Door bracket for the first four-bar linkage 50
A control cam mechanism 70 is provided so that the 40 and the second link member 52 have mutually controlled movements.

The control cam mechanism 70 includes a first sliding contact surface 71 formed in an arc shape on the second link member 52 concentrically with a pivot shaft 52b of the second link member 52 to the first auxiliary link member 51, and a first sliding contact surface 71. It has a first limiting surface 72 fixed to the door bracket 40 so that the sliding contact surface 71 fits.

Further, the control cam mechanism 70 is provided concentrically with the pivot shaft 51a of the first auxiliary link member 51 to the door bracket 40.
A second limiting surface 74 connected to the end of the limiting surface 72, and a second limiting surface
It has a second sliding contact surface 73 which is formed on the second link member 52 so as to be fitted with the 74 and which is connected to the end of the first sliding contact surface 71.

The first limiting surface 72 and the second limiting surface 74 are formed on the cam plate 44 fixed by rivets to the pivoting protrusion 41 of the door bracket 40.

The attachment plate 33 of the vehicle body bracket 30 to the opening edge 12 of the door opening 11 of the vehicle body 10 is provided with a fully closed stopper portion 34 with which the edge of the second link member 52 abuts when the door 15 is fully closed. An opening stopper portion 35 with which the end edge of the second link member 52 abuts when the door 15 is opened is provided at the tip portion of 31.

The first link member 2 includes the full-open stoppers 22 and 23 with which the tips 41a and 42a of the pivotal protrusions 41 and 42 of the door bracket 40 come into contact when the door is fully opened.
Formed in 1.

A check mechanism 80 is provided so that the door bracket 40 swings moderately.

The check mechanism 80 has a base end pivotally supported by a pivot 81a at an end of the mounting plate 43 of the door bracket 40 on the vehicle interior side, a tip elastically supported by a biasing spring 83, and an uneven edge check. It comprises a check arm 81 having a sliding surface 82, and a check pin 84 provided at the tip of the second auxiliary link member 61 and elastically contacting the check sliding surface 82.

The check sliding surface 82 is concave at the starting end position 82a, the intermediate position 82b, and the fully open position 82c. The check pin 84 includes a reinforcing pin 85 implanted in the middle portion of the third link member 62 and a biasing spring.
It is reinforced so as not to fall down by a reinforcing plate 86 that is installed over the tip of 83 and the tip of the reinforcing pin 85.

Next, the operation will be described.

The state in which the door 15 shown in FIGS. 1 to 3 is fully closed will be described. When the door 15 is fully closed, the first sliding contact surface of the second link member 52 is shown.
71 is fitted to the first limiting surface 72 of the door bracket 40,
The check pin 84 is the check sliding surface 82 of the check arm 81.
It is in elastic contact with the starting position 82a of the.

When the door 15 starts to open, the door bracket 40 rotates, and accordingly, the second link member 52 also rotates about the pivot shaft 52a, and the first sliding contact surface 71 provided on the second link member 52 moves to the first Sliding against the limiting surface 72.

Since the first limiting surface 72 has an arcuate shape concentric with the pivot shaft 52b of the second link member 52 to the first auxiliary link member 51, the second link member 52 only has the pivot shaft 52b as the center. It is rotatable, and the first auxiliary link member 51 is connected to the first sliding contact surface 71 and the first sliding contact surface 71.
It is stopped due to the fact that the limiting surface 72 is fitted.

The rotation of the second link member 52 displaces the first four-bar link mechanism 50, and the pivot end of the first link member 21 with respect to the vehicle body bracket 30 pivots about the pivot shaft 21a. 4-section link mechanism 60
Then, the third link member 62 rotates together with the first link member 21 about the pivot shaft 62a to cooperate with each other, and until the first sliding contact surface 71 comes off the first limiting surface 72, the base of the door 15 is closed. The end portion moves so as to be pushed outward, and becomes the state shown in FIGS. 5 and 6.

As a result of the base end of the door 15 moving outward, a boarding / alighting space is formed near the base end of the door 15.

In the check mechanism 80, the second auxiliary link member 61 forming the second four-bar linkage 60 rotates about the pivot shaft 61a at the pivot end of the door bracket 40, and The check pin 84 attached to the tip of the auxiliary link member 61 moves while making elastic contact with the check sliding surface 82 of the check arm 81 and moves to the intermediate position 82b of the sliding surface to hold the door 15.

At this time, the side edge of the second link member 52 abuts against the open-time stopper portion 35 fixed to the pivotal projection 31 of the vehicle body bracket 30 and stops, and the first sliding contact surface 71 is disengaged from the first limiting surface 72. The second sliding contact surface 73 fits into the second limiting surface 74. The second sliding contact surface 73 and the second limiting surface 74 are the door bracket of the first auxiliary link member 51.
The first auxiliary link member 5 is concentric with the pivot shaft 51a to the 40.
1 is unconstrained.

When the door 15 is further opened, the second sliding contact surface 73 and the second limiting surface 74 move relative to each other, and the door bracket 40 is centered around the pivot shaft 51a of the first auxiliary link member 51 to the door bracket 40. It turns small. The first auxiliary link member 51 swings to the required limit.

The base end of the door 15 hardly moves to the outside after fitting from the second sliding contact surface 73 to the second limiting surface 74, and rotates slightly to open. When the door 15 is fully opened, the tip ends 41a and 42a of the pivotal protrusions 41 and 42 of the door bracket 40 come into contact with the fully open stoppers 22 and 23 of the first link member 21 and stop, as shown in FIGS. 7 and 8. It becomes a state.

In the check mechanism 80, the check arm 81 is displaced so as to be pulled with respect to the check pin 84 at the tip of the second auxiliary link member 61 of the second four-bar linkage 60, and the check pin 84 is displaced by the biasing spring 83. The elastic force causes the check arm 81 to move in elastic contact with the check sliding surface 82 and to the fully open position 82c at the end of the check sliding surface 82.

When the door 15 is fully opened, the base end of the door 15 is moved outward and the foot space is wide, so that the passenger can get on and off in a comfortable manner.

When the fully opened door 15 is closed, the door 15 is rotated in a small direction while the second sliding contact surface 73 is fitted into the second limiting surface 74 and is moving in the reverse order of the opening. After the first sliding contact surface 71 is closed and the first restricting surface 72 is fitted, the base end portion moves inward and the door 15 is fully closed. Second link member when fully closed
The side edge of 52 abuts against the fully closed stopper portion 34 provided on the mounting plate 33 of the vehicle body bracket 30 and stops.

Contrary to the check mechanism 80, the check pin 84 returns from the fully open position 82c at the end of the check sliding surface 82 of the check arm 81 to the start position 82a via the intermediate position 82b.

[Advantage of the Invention] According to the vehicle door hinge of the present invention, the four-bar linkage mechanism is controlled by the cam mechanism, and the check mechanism is provided to open and close the door. In addition to being able to do, the operation is smooth.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention.
The figure is a perspective view of the door hinge, FIG. 2 is a plan view of the door hinge in the fully closed state, FIG. 3 is the same view as the arrow of FIG. 1 III, and FIG. 4 is a plan view of an automobile, FIG. 5 and FIG. Is a plan view of the door hinge in the half-opened state of the door and an explanatory view equivalent to the arrow III,
FIG. 7 and FIG. 8 are explanatory views corresponding to the plane and the arrow III of the door hinge when the door is fully opened. 10 ... Car body, 11 ... Door opening 12 ... Opening edge, 15 ... Door 20 ... Door hinge, 21 ... First link member 30 ... Car body bracket, 34 ... Full closing stopper portion 35 ... Opening stopper portion, 40 ... Door bracket 50 ... First four-node link mechanism 51 ... First auxiliary link member 52 ... Second link member 60 ... Second four-node link mechanism 61 ... Second auxiliary link member 62 ... Third link member 70 ... Control cam mechanism, 71 ... First sliding contact surface 72 ... First limiting surface, 73 ... Second sliding contact surface 74 ... Second limiting surface, 80 ... Check mechanism 81 ... Check arm, 82 ... Check sliding surface 83 ... Bias spring, 84 … Check pin

Claims (1)

[Scope of utility model registration request] 1. A vehicle door hinge for swingably supporting a slant door on a vehicle body, a vehicle body bracket fixed to a vehicle body side, a door bracket fixed to a door side, a vehicle body bracket and a door. A first link member erected pivotably at both ends between the bracket and the bracket, first and second auxiliary link members pivotally attached at the base end to the door bracket, and the vehicle body bracket and the first Is erected with both ends pivotally attached to the tip of the auxiliary link member, and the base end portion of the door is removed by the vehicle body bracket, the first auxiliary link member, and the first link member at the initial stage of opening the door. And a second link member that constitutes the first four-bar linkage that is displaced toward one side, and the vehicle body bracket and the tip end of the second auxiliary link member are pivotally mounted at both ends, and are installed. of The auxiliary link member and the first link member form a second four-joint link mechanism that cooperates with the first four-joint link mechanism, the third link member, the door bracket, and the second link member mutually. A first sliding contact surface which is provided so as to perform a controlled motion, and which is concentric with a pivotal axis to the first auxiliary link member and which is formed in an arc shape on the second link member; and the first sliding contact surface. Are provided concentrically with the first limiting surface fixedly mounted on the door bracket so that the first auxiliary link member is pivotally attached to the door bracket.
A second limiting surface connected to an end of the limiting surface; and a second sliding contact surface formed on the second link member so as to fit the second limiting surface and connected to an end of the first sliding contact surface. The control cam mechanism and the door bracket are provided so that they swing with moderation.The base end is pivotally supported by the door bracket, the tip is elastically supported, and the check sliding surface has uneven edges. A vehicle door hinge comprising a check arm having the check arm and a check mechanism provided at the tip of the second auxiliary link member and having a check pin elastically contacting the check sliding surface.