JPH03193542A - Bumper device for automobile - Google Patents

Abstract

PURPOSE:To prevent a person from being caught under the car body with a frame body and thereby avoid the occurrence of a serious accident by releasing an engaged pin and making a ascending frame body so as to goes down when a person comes into contact with a contact sensing means of a bumper in the state that a holding means hold the engaged pin of the ascending frame body. CONSTITUTION:In the state that a latch pin 57 of a holding means 55 holds an engaged pin 38 of a rack pillar 35 for a frame body 15 ascented by a driving part 25, a solenoid 41 of a driving release means 40 works and a claw 42 moves. Then, an intermediate gear 31 is pulled out of a drive gear 32, releasing the drive of the driving part 25. When a person 5a comes into contact with a bumper 20, a touch sensor 23 of this bumper 20 senses this contact. Next, a solenoid 56 of the holding means 55 moves the pin 57 whereby the pin 38 comes to a state of being released. At this time, the frame body 15 goes down together with the rack pillar 36 by dint of energizing force of a spring 37 in the rack pillar 35. If so, the person 5a is shielded by the frame body, so that he is no longer caught in a body lower space h3.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a bumper device provided on the body of an automobile.

(Prior Art) Conventionally, automobile bumpers are provided at the front and rear of the automobile body to protect the automobile body from small collisions. What is shown in FIG. 7 is an automobile equipped with a conventional bumper.

In FIG. 7, 1 is a car body, and this car body 1
A bumper 2 is provided at the front end portion 1a of the vehicle. The bumper 2 is disposed across the front end 1a of the vehicle body 1 in the width direction and at a height above the road surface 3.

(Problems to be Solved by the Invention) However, with the bumper 2 provided in the conventional vehicle body 1, when a car hits a person 5 from the front, the height between the bumper 2 and the road surface 3 increases, and the bumper 2 becomes lower. Space under the vehicle body h
2, the person 5 may get caught in this space h2 under the vehicle body.

If the person 5 is caught in the space h2 under the vehicle body, there is a problem that the person 5 may be seriously injured, or in the worst case, it may lead to a fatal accident.

The present invention is intended to solve such conventional problems, and its purpose is to prevent a person from getting caught in the space under the car body even when a car hits a person. An object of the present invention is to provide an automobile bumper device that can perform the following functions.

・Means for solving the problem:〉 In order to achieve the above object, the automobile bumper device according to the present invention is provided with a contact sensing means on the front surface of the bumper provided on the front side of the vehicle body, A drive means having a drive release means is provided at both ends in the upper width direction, and a spring is provided at the top of the rack column provided at both ends of the frame that is raised by the drive means, and which is compressed by the rise of the rack column. The frame body is provided with a holding means for holding the locking bottle on the upper side surface thereof so as to be engageable at the rising end, and the holding means is actuated by the contact sensing means.

(Function) Therefore, in the automobile bumper device according to the present invention,
When a person touches the contact sensing means provided on the bumper while the holding means holds the locking bottle at the raised position of the frame raised by the driving means, the holding means releases the locking bottle. The frame body, which was biased by the spring, descends.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 6.

FIG. 1 is a perspective view showing an embodiment of an automobile bumper device according to the present invention, FIG. 2 is a front sectional view showing one side of the automobile bumper device, and FIG. FIG. 4 is a side sectional view taken along line I, FIG. 4 is a plan sectional view taken along line IV--IV in FIG. 2, and FIG. 5 is a front view showing one side of the automobile equipped with the automobile bumper device.

In FIGS. 1 to 5, reference numeral 10 denotes a vehicle body, and a front end portion 10a of the vehicle body 10 is provided with a bumper 20. As shown in FIG. The bumper 20 includes a bumper main body 21 having a concave cross-section, and a plurality of touch sensors 23, which are contact sensing means, arranged at appropriate positions on the concave surface portion 21a. A pad material 22 is provided in front of the touch sensor 23, and the touch sensor 23 is connected to the front surface 22 of the pad material 22.
Touch can be detected no matter which part of a is touched. Corner portions 20a are provided at both ends of the bumper body 21.

A driving portion 25 serving as a driving means is provided on the upper surface of a corner portion 20a of the bumper 20 via a base 34. The drive unit 25 is a drive source for raising the frame 15 including the rack columns 35, and has a motor 27 attached to a bracket 26 on the upper surface of the base 34. A gear part 30 is disposed at the tip of the motor 27, and this gear part 30 is provided with an intermediate gear 31 forming part of a drive release means 40, which will be described later, and a drive gear 32 for raising the frame 15. It is being

The drive unit 25 rotates the drive shaft 27a by driving the motor 27, and further transmits the rotation to the drive gear 32 via the intermediate gear 31. The rotation of the drive gear 32 engages the teeth 32a of the drive gear 32 and the rack 36 of the rack column 35 to raise the frame 15.

The drive release means 40 releases the drive of the drive unit 25, and the drive release means 40 includes a solenoid 41, a pawl 42 provided at the tip of the solenoid 41, and an intermediate gear 31.
A pulley-shaped locking portion 31a is provided on the motor 28 side of the intermediate gear 31, which is configured with By pulling out the intermediate gear 31 from the drive gear 32, the drive of the drive section 25 can be released.

The frame body 15 has a grid shape, and openings 15a facing the headlamps 11 are provided on both sides in the width direction so as not to block the light from the headlamps 11 of the vehicle body 10. At both ends in the width direction of the frame body 15, rack columns 35 are provided which are slidably supported by support cylinders 45. The support cylinder 45 is fixed to the base 34, the rack column 35 is formed into a cylindrical shape, and a rack 36 is provided. The rack 36 meshes with the teeth 32a of the drive gear 32 as described above. The rack pillar 35 has a spring hole 35 in the upper part 35a of the central axis.
b is bored, and a spring 37 is inserted into this spring hole 35b. The spring 37 is for lowering the frame 15, and this spring 37 urges the rack column 35 downward within the spring hole 35b. A locking pin 38 is provided on the upper part of the back side of the rack 36 of the rack column 35 at right angles to this central axis.

The support cylinder 45 is formed into a cylindrical shape, and is provided with a frame groove 46 and a pin hole 47 in the vertical direction on its outer periphery. The frame arm 46 is the frame body 15
is inserted and provided for this sliding movement. This frame 71146 is cut out at the lower end of the support cylinder 45 to allow the frame 15 to be inserted and removed.

147 is for regulating the strokes of the locking pin 38 at the upper limit 47a and lower limit 47b when the frame 15 slides. Note that the lower part 15b of the frame 15
When the frame body 15 descends to the lower limit 47b, it moves to the road surface 3.

The support tube 45 is covered with a Kahala O, and the cover 50 also covers the drive section 25, the gear section 30, and the drive release means 40. Further, the cover 50 is provided with a frame cover 51 that covers a gap between the frame body 15 and the cover 50 as the frame body 15 moves up and down. This frame cover 51 is formed into a flexible band-like piece of rubber or the like, and the frame cover 51 is
5 is attached to the cover 50 so as to sandwich it from both sides. Further, a holding means 55 for holding the frame 15 is attached to the upper part of the cover 50, and the holding means 55 is composed of a solenoid 56, a latch pin 57, a sub-base 58, and a cover 59. This retainer Fu
55 engages the locking pin 38 of the vertical column 35 that has been raised by the drive section 25! This is for holding with a tip pin 57.

Next, the operation of the above embodiment will be explained.

- In Embodiment F, the bumper 20 is a locking bin 3 provided on the rack column 35 of the frame 15 raised by the drive unit 25.
8 is held by the latch pin 57 of the holding means 55, the solenoid 41 of the drive release means 40 operates, and the claw 42
moves in the direction of arrow A, the intermediate gear 31 of the gear section 30
is removed from the drive gear 32, and the driving of the drive unit 25 can be released. In this state, as shown in Figure 6, the person 5
When a contacts the bumper 20, a touch sensor 23 disposed on the bumper 20 senses the contact.

When the touch sensor 23 detects contact, the solenoid 56 of the holding means 55 is activated immediately.
The locking pin 38 moves in the direction of the opening as viewed from the arrow, and the locking pin 38 becomes released. At this time, the frame 15 is lowered along with the vertical pillar 35 due to the bias of the spring 37 inside the vertical pillar 35.

By lowering the frame 1, the person 5a moves to the frame 15.
There is a person 5a in the space h3 under the vehicle body because the person 5a
There is no possibility of getting involved. For this reason, the person 5a is not caught into the space h3 under the vehicle body, so he is not seriously injured.
No fatal accidents will occur.

- (Effects of the invention)> As described above, the automobile bumper device according to the present invention has the following effects:
A contact sensing means is provided on the front surface of a bumper provided on the front side of the vehicle body, a driving means having a driving release means is provided at both ends of the upper width direction of the bumper, and the driving means is provided at both ends of a frame that is raised by the driving means, A spring is provided at the top of the rack column that is compressed by the rise of the vertical column, and a retaining means is provided on the frame body to hold the locking pin on the upper side surface of the rank column so that it can be freely engaged at the rising end. Since the holding means is actuated by the contact sensing means, when the holding means is holding the locking bottle in the raised position of the frame raised by the driving means, a person operates the contact sensing means provided on the bumper. Upon contact, the retaining means releases the locking pin so that
The frame body, which was biased by the spring, descends.

Therefore, since the frame prevents one person from getting caught in the vehicle body, serious accidents are prevented.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of an automobile bumper device according to the present invention, FIG. 2 is a front sectional view showing one side of the same automobile bumper device, and FIG. 3 is a diagram showing ■-■ in FIG. 2. 4 is a plan sectional view taken along line IV-IV in FIG. 2, FIG. 5 is a front view showing one side of the automobile equipped with the automobile bumper device, and FIG. FIG. 7 is a side view showing an automobile equipped with the automobile bumper device, and FIG. 7 is a perspective view showing an automobile equipped with a conventional bumper. 10... ] [Body, 15... Frame body, 20... Bumper 20a... Part of corner (end), 23... Evening sensor (touch sensing means), 25...
・Drive part (drive means), 35... U-I pillar, 37.
. . . Spring, 38 . . . Locking pin, 55 . . . Holding means.

Claims (1)

[Claims] A contact sensing means is provided on the front surface of a bumper provided on the front side of the vehicle body, a drive means having a drive release means is provided at both ends of the upper width direction of the bumper, and a rack is provided at both ends of a frame body that is raised by the drive means. A spring is provided at the top of the column to be compressed as the rack column rises, and a holding means is provided on the frame body for holding a locking pin on the upper side surface of the rack column so that it can be freely engaged at the rising end, and is held by the contact sensing means. A bumper device for an automobile, characterized in that the means is actuated.