JPH10131591A - Hinge mechanism of car open-close body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for a hood support in case of the opening of an engine hood. SOLUTION: The base ends of a hinge piece 11 fixed onto an engine hood H and a hinge piece 12 fastened onto a car body B are pin-connected, and both hinge pieces 11, 12 are freely rotated relatively. A pair of support pieces 13, 14 are installed while tying each front end of the hinge pieces 11, 12, the support pieces 13, 14 are extended linearly between the front ends of the hinge pieces 11, 12 when the engine hood H is opened to form triangular truss structure, and the engine hood is supported under an open state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge mechanism for a vehicle opening / closing body such as an engine hood, and more particularly to a simple and compact hinge mechanism capable of holding a vehicle opening / closing body open.

[0002]

2. Description of the Related Art A conventional engine hood (hereinafter simply referred to as a hood) H in an engine room R is normally connected to a vehicle body B at both left and right ends of a rear edge by a hinge mechanism 4, as shown in FIG. . The hinge mechanism 4 has a hinge piece 41 fixed to the hood H and a hinge piece 42 fixed to the vehicle body B pin-coupled at a base end so as to be relatively rotatable. The leading edge can be lifted up and opened centering on the trailing edge. However, since the hinged mechanism 4 cannot hold the open hood H, a bar-shaped hood support 5 is provided on the side edge of the opening of the engine room R as shown in FIG.
The tip 52 is raised around the base end 51 supported by the shaft,
The tip 52 is inserted into a locking hole H1 of the inner panel of the hood H to support the hood H in an open state.

[0003]

However, in the above-described conventional structure, there is a problem that the hood support 5 rising rearward from the front portion of the opening side edge of the engine room R is obstructive when inspecting the engine room. In addition, attaching and detaching the hood support 5 to and from the locking hole H1 every time the hood H is opened and closed is troublesome. Further, there is a problem that the manufacturing and assembling process becomes complicated, such as mounting the hood support 5 other than the hinge opening / closing mechanism 4 or forming the locking hole H1, thereby increasing the cost.

[0004] For example, Japanese Utility Model Publication No. 5-29341 discloses a cam member, a copying member in contact with the cam surface thereof, a guide portion for guiding the copying member, and a spring for urging the copying member toward the cam surface. Although a hinge mechanism is provided in which a body or the like is provided so that the opening / closing body can be stopped at an arbitrary opening angle, there is a drawback that the structure is complicated.

Accordingly, the present invention provides a hinge mechanism for a vehicle opening / closing body which can hold the vehicle opening / closing body in an open state with a simple structure, and eliminates the need for a hood support when applied to an engine hood, thereby solving the above problems at once. The purpose is to provide.

[0006]

In order to achieve the above object, according to the present invention, a pair of hinge pieces (11, 12) whose base ends (115, 121) are connected by a pin member (31) and are relatively rotatable. ), One of the hinge pieces (11) is fixed to the vehicle opening / closing body (H), the other hinge piece (12) is fixed to the vehicle body (B), and the vehicle opening / closing body (H) is pinned. The member (31) can be pivotally opened and closed around the center,
Also, each tip (114, 12) of the hinge pieces (11, 12)
7), a supporting member that can be bent and folded is provided, and when the vehicle opening / closing body (H) is opened, the supporting member moves to the tip (11).
4,127) to extend linearly between the hinge pieces (11,1).
Together with 2), a triangular truss structure is formed to support the vehicle open / close body (H) in an open state. The support member is composed of a pair of support pieces (13, 14), the tips (133, 142) of the support pieces (13, 14) are relatively rotatably connected, and the support pieces (13, 14) are connected. 14) is connected to each hinge piece (11, 141).
12) is rotatably coupled to the tip (114, 127) of at least one of the support pieces (13, 14), and engages with at least one of the support pieces (13, 14) when extending linearly. Engaging portions (135, 143) are provided.

In the present invention, in addition to the conventionally provided hinge pieces, a support member is provided which can be bent and folded by connecting the tips of these hinge pieces, and the support member is linear when the vehicle opening / closing body is opened. The vehicle open / close body is supported in an open state by extending to form a triangular truss structure. As described above, since the hinge mechanism itself is provided with the load supporting function of the vehicle opening / closing body, when used in an engine hood, there is no need to provide a hood support separate from the hinge mechanism as in the conventional case, and the hood support is provided by the engine. Complicated manufacturing assembly process due to problems such as obstruction during room inspection, troublesome work of attaching and detaching the hood support to the locking hole every time the hood for the vehicle is opened and closed, and installation of the hood support other than the hinge mechanism As a result, the problem of increased costs is eliminated. In addition, a support member that can be bent and folded and that can be extended linearly is easily realized by a pair of support pieces having an engagement portion.

[0008]

FIG. 1 shows an engine hood H (hereinafter simply referred to as a hood) as a vehicle opening / closing body with an engine room R opened. The hood H is connected to the opening side edge of the engine room R by hinge mechanisms 1 and 2 at the left and right positions of the rear edge. One hinge mechanism (right one in the figure) 2 has the same structure as the conventional one, and includes a hinge piece 21 fixed to the hood H and a hinge piece 22 fixed to the vehicle body B.
Are pin-connected at one end so as to be relatively rotatable. The other hinge mechanism 1 is according to the present invention, and includes hinge pieces 11 and 12 which are pin-connected at one end so as to be relatively rotatable, and a support piece which is connected to the other ends of the hinge pieces 11 and 12 and is bendable and foldable. 13 and 14. That is, as shown in FIG. 2, the hinge piece 11 fixed to the hood H and the hinge piece 12 fixed to the vehicle body B are fixed around a pin member 31 which connects one end of the hinge piece so as to be relatively rotatable. Open in a V-shape to the angle,
The two support pieces 13 and 14 are linearly positioned between the other ends of the truss to form a triangular truss structure and receive the load of the hood H.

3 and 4 show a more detailed structure of the hinge mechanism 1, and FIGS. 3 and 4 are a plan view and a side view of the hinge mechanism 1 with the hood H closed. The hinge piece 11 is a long plate, and has two mounting holes 11 provided on the plate surface.
It is fixed to the hood H by 1,112 (FIG. 3). An upright wall 113 is formed along the side edge of the hinge piece 11, and a proximal end 131 of the support piece 13 is provided at the upright wall 113 near the tip 114.
Are rotatably connected by a pin member 32. The base end of the hinge piece 11 is bent in a V-shape (FIG. 4), and the base end 115 of the hinge piece 12 is rotatably connected to the base end 115 by a pin member 31. Hinge piece 1
Reference numeral 2 denotes a long plate body, which is connected to the hinge piece 11 by an upright wall 122 formed along the side edge, and has mounting holes 123 and 124 (FIG. 3) provided at two places on the plate surface;
Mounting hole 1 provided in mounting seat 125 bent at a part of
26 is fixed to the vehicle body B. The support piece 1 is attached to the upright wall 122 at the tip 127 of the hinge piece 12.
The four base ends 141 are rotatably connected by pin members 33.

FIG. 5 shows a front view of the support piece 13. As shown in FIG. The support piece 13 is a long plate body having parallel side surfaces, and a base end 131 connected to the hinge piece 11 is formed with a round hole 132 through which the pin member 32 is inserted, and a distal end 133 is a long hole extending in the longitudinal direction. 134 are formed. A parallelogram-shaped engaging recess 135 inclined toward the base end 131 is formed on the side edge of the plate near the elongated hole 134. As shown in FIGS. 6 and 7, the support piece 13 is a long plate having parallel side surfaces, and a base end 141 connected to the hinge piece 12 is formed with a round hole 145 through which the pin member 33 is inserted. With the tip 14
2 The lower half portion is a surface 143 bent in an L shape in plan view (FIG. 7).
The engaging projections 143 protrude in a triangular shape (FIG. 6) while forming a. Further, a round hole 144 is formed in the plate surface of the support piece 14 near the distal end 142. As shown in FIG. 3, each of the support pieces 13 and 14 extends horizontally from the tip of each of the hinge pieces 11 and 12 while slightly bending in a direction approaching each other, and is inserted into the elongated hole 134 and the round hole 144. It is rotatably connected by the pin member 34 in a folded state. Note that the pin member 34 is movable along the elongated hole 134.

In the hinge mechanism 1 having such a structure,
When the hood H is opened, the hinge piece 11 integrated therewith pivots upward as shown by the arrow in FIG. Along with this, the support piece 13 coupled to the distal end 114 of the hinge piece 11 is raised from the base end 131, and further, when the hood H is opened and the hinge piece 11 turns upward, the distal end 1 of the support piece 13 is rotated.
The support piece 14 coupled to 33 is raised. At this time, the pin member 34 moves inside the elongated hole 134 to the opposite position. When the hood H is further opened in this state, the support piece 1
The four engaging projections 143 at the tips are engaged with the engaging recesses 135 of the support piece 13.
The two support pieces 13 and 14 enter into the inside and the two hinge pieces 11 and 1
It extends linearly between the two tips 114 and 127. Thereafter, when the hood H is slightly returned in the closing direction, the pin member 34 returns to the original position in the elongated hole 134, and engages with the L-shaped bent surface 143a of the engagement convex portion 143 as shown by a chain line in FIG. Recess 1
The opening side edges of the abutment 35 are in contact with each other, so that the linear posture of the support pieces 13 and 14 is maintained. By such support pieces 13 and 14 and hinge pieces 11 and 12, a triangular truss structure as described first is formed (FIG. 2), the load of the hood H is reliably supported, and its open state is maintained. Is done. When the hood H is closed, the hood H is once raised in the opening direction to eliminate the contact state between the L-shaped bent surface 143a of the engaging projection 143 and the opening side edge of the engaging recess 135. , The engaging projection 143 is pushed in the direction shown by the arrow in FIG.
At the joint. Thereby, the hood H can be closed. Hinge piece 1 with closing hood H
1 turns downward, and the support pieces 13 and 14 are largely bent. When the hood H is completely closed, the support pieces 13 and 14 are in the initial folded state shown by the solid line in FIG.

As described above, according to the hinge mechanism 1 of the present invention, the hood H can be maintained in an open state with a simple structure in which the support pieces 13 and 14 are simply added to the conventional hinge pieces 11 and 12. No support is required. Therefore,
Inspection of the engine room R and the like are facilitated, the operation when the hood is opened is reduced, and the process of manufacturing and assembling parts for holding the hood open is simplified, thereby realizing cost reduction.

The hinge mechanism of the present invention has a great effect when used in an engine hood, but is not limited to this.
It can also be used for other vehicle opening and closing bodies such as a trunk lid and a back door.

[0014]

As described above, according to the hinge mechanism of the present invention, the vehicle hood can be kept open with a simple structure. As a result, the need for the hood support is eliminated, and the problem that the hood support hinders the inspection of the engine room is solved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an open engine hood using a hinge mechanism of the present invention.

FIG. 2 is an enlarged perspective view of a portion A in FIG.

FIG. 3 is a plan view of the hinge mechanism when the hood is closed.

FIG. 4 is a side view of the hinge mechanism when the hood is closed.

FIG. 5 is a side view of the support piece.

FIG. 6 is a side view of the support piece.

FIG. 7 is a plan view of a support piece.

FIG. 8 is a perspective view of an open engine hood using a conventional hinge mechanism.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hinge mechanism, 11, 12 ... Hinge piece, 114, 12
7 ... distal end, 115, 121 ... proximal end, 13, 14 ... support piece, 131, 141 ... proximal end, 133, 142 ... distal end, 1
35: engagement recess, 143: engagement projection, 31: pin member,
B: Vehicle body, H: Engine hood.

Claims (1)

[Claims] The base end (115, 121) has a pin member (3).
1) has a pair of hinge pieces (11, 12) that are relatively rotatable and fixed by one). One hinge piece (11) is fixed to the vehicle opening / closing body (H), and the other hinge piece (1) is fixed.
2) is fixed to the vehicle body (B) so that the vehicle opening / closing body (H) can be opened and closed about the pin member (31), and each of the tips (11, 12) of the hinge pieces (11, 12). 11
4 and 127), a support member that can be bent and folded is provided, and when the vehicle opening / closing body (H) is opened, the support member linearly extends between the distal ends (114 and 127) and the hinge piece ( 11 and 12) to form a triangular truss structure to support the vehicle open / close body (H) in an open state, and to connect the support member to a pair of support pieces (13, 1).
4), the tip (13) of each support piece (13, 14).
3 and 142) so as to be relatively rotatable, and the base ends (131 and 141) of the support pieces (13 and 14) are respectively connected to the distal ends (114 and 114) of the hinge pieces (11 and 12).
127) so as to be rotatable relative to each other and the support piece (1).
At least one of the engaging portions (1 and 3) engages with the other support piece (13, 14) when extended linearly.
35, 143), wherein a hinge mechanism for a vehicle opening / closing body is provided.