KR930002559Y1 - Trunk lid torsion bar structure for vehicle - Google Patents

Abstract

No content.

Description

Car trunk lid torsion bar structure

1 to 5 is an exemplary view of the trunk lid torsion bar structure of a conventional vehicle.

Figure 6 is a plan view of a torsion bar (TORSION BAR) according to the present invention.

7 is a right side view of FIG.

8 is a front view of the hinge bracket.

9 is a combined perspective view of the present invention.

FIG. 10 is a left side view of FIG.

* Explanation of symbols for main parts of the drawings

40: Trunk lid 42: Torsion bar

44: HINGE ARM 45: LINK

48: hooking part 50: horizontal stage

52: tip 54: vertical end

56: hinge bracket 58: vertical groove

60: horizontal groove 62: bracket fixing portion

64: yaw groove 66: screw groove

68: screw

The present invention relates to a trunk lid torsion bar structure of an automobile, and more particularly, to a trunk lid torsion bar structure incorporating a torsion bar of a trunk lid hinge.

Conventional trunk lid torsion bar structure has been developed in various types, as shown in Figures 1 to 5, the hinge arm (1) is installed in the rear west panel (9) in the case as in Figure 1, Since both ends are attached to the lid 4, the size and curvature of the hinge arm 1 become large, and it is drawn out in the trunk room 7 so that the space of the trunk room 7 cannot be effectively used, and thus the cargo There was an inconvenience to load carefully paying attention to this, and the torsion bar 10 is also located in the trunk room (7) should be careful not to touch the object. An improvement of this is introduced in Japanese Patent Application No. 57-67111 (Public Publication No. 58-185880).

In addition, in the case of FIGS. 2 to 4, the trunk lid 4 is provided on the bracket 13 on the vehicle side via a pair of hinge arms 1, and is opened by a pair of torsion bars 10. The torsion bar 10 has one end hinged to the free end, and the other end rotates from the front of the car to the rear of the car using the jig 16 in consideration of work stability. The torsion bar 10 is opened from the jig 16 at the time of joining so that the torsion bar 10 or the jig 16 can be fixed by the worker's hand. It was bent to the side so that there was no danger to workers.

However, in the case of FIG. 2, when the spoiler or the like is installed on the trunk lid, the weight of the trunk lid 4 changes, and accordingly, a torsion bar having an appropriate modulus of elasticity must be replaced. It is also necessary to prepare a torsion bar of a kind, and torsion bars to give elasticity occupy space in the trunk. An improvement of this is disclosed in Japanese Patent Laid-Open No. 59-65183 (Open Publication No. 60-208587). In addition, as shown in FIG. 5, one end 10a of the torsion bar 10 is joined to the vehicle-side hinge arm 1, the torsion bar 10 is laterally deflected, and the second bent portion 10f of the other end l0b. ) Is required to penetrate into the hole of the trunk lid side hinge arm 1, and it is difficult to form the outer surface of the hinge arm 1 so as to penetrate into the invisible hole first and not to penetrate the front hole. Improvements are made in Japanese Utility Model Registration Application No. 55-l14245 (Notification 60-39338). By the way, in the conventional trunk lid torsion bar structure, when the weight of the trunk lid is light, it is possible to operate as a single torsion bar. There was a problem.

The present invention is conceived for the purpose of effectively solving the problems with the conventional trunk lid torsion bar structure described above. To this end, the both ends of the torsion bar are raised horizontally, and the crank-shaped hooking part is formed even when the rear end of the link where the trunk lead is touched is formed, and the vertical and horizontal grooves are formed on the bracket on which both ends of the torsion bar are supported. The both ends of the torsion bar are supported by the bracket, and the hooking portion is connected to the link holding the trunk lid, so that the torsion bar and the trunk lid have elastic force without being separated from the vertical and horizontal grooves of the bracket by their own weight moment. Therefore, the torsion bar is integrally formed without a bullet point, thereby improving productivity, reducing material cost, and improving workability, and achieving stepwise adjustment of the trunk lid.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The present invention relates to the structure of the torsion bar 42 of the trunk lid 40, when the hinge arm 44 supporting the trunk lid 40 is connected to one end of the link 46, the torsion bar 42 is a link A hooking portion 48 is formed so that the other end is hooked, and both ends of the torsion bar 42 are bent horizontally at a position at a predetermined angle θ with respect to the hooking portion 48 so that the center horizontal stage 50 is formed. And a front end 52 and a vertical end 54, and vertical and horizontal grooves in which the horizontal end 57 and the front end 52 are supported by a hinge bracket 57 on which both ends of the torsion bar 42 are hooked. (58.60) is formed.

6 is a plan view of the torsion bar 42 according to the present invention, showing that the hooking portion 48, the horizontal end 50, the front end 52 and the vertical end 54 are formed symmetrically at both ends. 7 is a right side view of FIG. 6, in which the hooking portion 48 and the tip 52 are formed with a predetermined angle θ so as to be supported by the hinge bracket 56 which is retracted. 8 is a front view of the hinge bracket 56, an example in which a vertical groove 58 into which the front end 52 of the torsion bar 42 is fitted and a horizontal groove 60 into which the horizontal end 50 is fitted are formed. Shows. At this time, each groove (58, 60) is semi-circular, so that the rod-shaped torsion bar 42 can be fitted, but may be formed into an omega (Ω) -shaped groove to prevent separation.

A process of installing the torsion bar 42 according to the above configuration will be described. The hinge bracket 56 is fixed to the length of the torsion bar 42 on both bracket fixing portions 62 in the trunk room, and the tip 52 is fitted into the vertical groove 58 of the hinge bracket 56. The horizontal end 50 is seated in the horizontal groove 60, the horizontal end 50 and the front end 52 leading to the vertical end 54 is elastically supported on the hinge bracket 55 is mounted so as not to be separated. Subsequently, the hinge arm 44 fixed to the trunk lid 40 is connected to the hooking portion 48 by the yaw groove 64 at its rear end via the link 46. In particular, the rear end connected to the link 46 of the hinge arm 44 is fixed to the bracket fixing part 62 while the screw 68 is fitted to the screw groove 66 so that the hinge arm 44 is connected to the screw ( 68) can be rotated about the axis. Therefore, the torsion phenomenon of the torsion bar 42 does not occur in the state in which the trunk lid 40 is opened as shown in FIG. 9, but when the trunk lid 40 is closed, the hinge arm fixed to be rotated about the screw 68 is rotated. 44 is rotated clockwise (arrow) and pushes the link 46, and this link 46 pushes the hooking portion 48 by pushing the hooking portion 48 because the groove 64 is hooked to the hooking portion 48. Try to rotate 42).

However, the torsion bar 42 is inserted into the horizontal groove 60 other than the hinge bracket 56 and the horizontal end 50 is inserted into the vertical groove 58, and thus cannot be rotated. As the part 48 is forcibly rotated by the link 46, the torsion bar 42 is subjected to a torsional force itself, that is, a torsion (TORSION), so that the force retains the elastic force to be restored, and thus the trunk lid When the striker (not shown) of the lock is released, the trunk lid is opened by a predetermined angle with the elastic force, so that it is easily operated to load or unload. On the other hand, the link and the hinge described above formed on only one side of the torsion bar, but of course a pair is formed on the left and right.

By using the present invention as described above, since the torsion bar is manufactured in a single type having a restoring force by the torsional force, productivity is improved, production costs are reduced according to material cost reduction, and workability can be improved. In addition, since one torsion bar is used, the tremor phenomenon when the trunk lid is opened when a plurality of torsion bars are used is prevented, and the trunk lead step adjustment is also advantageous, thereby increasing the practicality.

Claims (1)

In the trunk lid torsion bar structure of the vehicle in which the hooking portion 48 is integrally bent to the torsion bar 42 to be supported by the hinge bracket 56, the hinge bracket 56 has a vertical groove 58 horizontally. The groove 60 is formed and fixed to both bracket fixing portions 62 of the vehicle body, and the torsion bar 42 supported by the hinge bracket 56 is symmetrically hooked portion 48 and the horizontal end 50. And the vertical end 54 and the front end 52 are formed, the hook portion 48 has a link 46 formed with a groove 64 at the rear end is coupled with the hinge arm 44 to connect with the trunk lid 40 The tip 52 of the torsion bar 42 is fitted into the vertical groove 58 of the hinge bracket 56, and the horizontal end 50 is fitted into the horizontal groove 60 of the hinge bracket 56. The torsional force of the torsion bar 42 generated when the trunk lid 40 supported by the hinge arm 44 is closed is combined so as to be an elastic force for opening the trunk lid 40. Trunk lid torsion bar structure of a car to.