JP2535626Y2 - Trailer angle animation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a trailer angle animation device.

[Conventional technology]

The trailer is connected by connecting a kingpin 1 shown in a side view of FIG. 5 protruding from a lower surface of a front end overhang portion thereof to a coupler 2 shown in a perspective view of FIG. In the state, as shown in the horizontal sectional view and the vertical sectional view in FIG. 7, the neck of the king pin 1 cooperates with the semicircular grooves of the pair of right and left jaws 3, 3 pivotally supported by the vertical pin 4 on the coupler 2. It is pivoted by fitting it into a circular hole to be formed.

By the way, as shown in the plan view of FIG. 8, the trailer is connected to the tractor to form a long vehicle,
When reversing, the driver gets out the upper half of the body from the door, checks the rear, and looks at the angle between the center line of the tractor and the trailer, that is, the magnitude and direction change of the trailer angle θ, and at the desired position. However, even if a rearview mirror or the like is used, since the trailer has a large vehicle radiance, it requires considerable skill to correctly grasp the trailer angle.

This is because, for example, there is always a slight trailer angle, even if you try to recline straight, and the tire resistance of both the tractor and the trailer differs slightly between the left and right tires due to load conditions, road surface conditions, etc. As a result, the trailer's front end moves more or less to the left or right as it retreats, and the trailer often turns in the opposite direction to the expected direction. This is due to the necessity of maneuvering the vehicle in the right direction and at the appropriate speed.

The same is true for turning right or left backwards, and most importantly, for the driver's proper and agile steering, the change in the trailer angle and the change in direction that changes with retreating must be agile. As described above, to grasp the trailer angle by looking at the rearview mirror or protruding the body as described above requires a great deal of skill.

[Issues to be solved by the invention]

The present invention has been proposed in view of such circumstances,
It is an object of the present invention to provide a trailer angle animation device that allows a driver to quickly and accurately view a trailer angle while sitting on a seat.

[Means for solving the problem]

For this purpose, the present invention provides a vertically elongated angle detector body having a front end pivotally supported by a horizontal pin slightly below the jaw of the coupler body and a circular opening provided on the rear end upper surface, the coupler body and the angle detector. A flapping drive member provided between the main body and the flapping device. The flapping drive member is operated in conjunction with a jaw that opens and closes in response to the advance and retreat of the king pin, thereby operating the flapping drive member. And a magnet to be described later, which is loosely inserted coaxially into the circular opening so that rotation around the vertical center line is free, but relative movement in the same center line direction is restricted, and a king pin is provided at the upper end. A movable mirror member having a magnet attached to a lower end of the movable mirror member and an upper end of a vertical reflecting mirror fixed to the lower end; A plurality of light receiving elements are disposed adjacent to each other in a semicircular shape centered on the movable mirror member and fixed to the detector body, and a light source for directing the movable mirror is disposed at the center position of the light receiving element group. A light receiver and a display for displaying an animation of the relative angle between the tractor and the trailer based on the output of the light receiving element of the light receiver are provided.

[Action]

According to such a configuration, the light emitted from the light source is adsorbed and protruded at the center of the lower end of the kingpin, is reflected by a mirror and illuminates the light receiver, and the direction of the reflected light changes in proportion to the trailer angle. Therefore, the relative angle between the tractor and the trailer displayed on the display can be animated by the position of the light receiving element that receives the reflected light.

〔Example〕

One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a principle view, FIG. 2 is a vertical sectional view showing a trailer angle detecting unit of the present apparatus, and FIG. FIG. 4 is a perspective view of FIG. 3, and FIG. 4 is a view taken in the direction of arrows IV-IV in FIG.

First, the principle of the present invention will be described. In FIGS. 1 and 2, the same reference numerals as those in FIGS. 5 to 7 indicate the same members as those in FIGS. 5 to 7, respectively. The mirror is fixed to the magnet 6 via the mirror mount 7 with the upper end being attracted via the magnet 6 and having a normal in the direction of the vertical center line of the trailer.

Reference numeral 8 denotes an angle detector main body. The front end of the angle detector main body 8 is pivotally supported by the coupler 2 via a horizontal horizontal pin 9, and the small diameter portion 11 of the mirror mount 7 is attached to the small diameter portion 11 of the opening 10 on the rear end upper surface. Loosely inserted. Reference numeral 12 denotes a light receiver disposed in the angle detector main body 8. The light receiver 12 has a substantially semicircular shape centered on the center of the mirror 5, and has a plurality of light receiving elements 13 on its inner surface adjacent to the entire length thereof. It is arranged in.

Reference numeral 15 denotes a diode light source that is disposed at the center of the arc of the light receiver 12 and irradiates a light beam to the center of the mirror 5. Reference numeral 16 denotes an animation display that is provided in the driving cabin and illustrates the relative angle between the tractor and the trailer, that is, the trailer angle θ. It is.

In FIG. 1, if the tractor and the trailer are on the same center line, the light beam emitted from the light source 15 is reflected by the mirror 5 and returns to the position of the light source 15. 5 is tilted by the trailer angle θ, the light reflected by the mirror is tilted by 2θ and irradiates the light receiving element 13 at this position.

Thus, based on the output of the light receiving element 13 at the position where the reflected light is received according to the trailer angle θ, the related position of the tractor and the trailer is imaged on the display 16 at the trailer angle θ via the animation image circuit 17. .

When the trailer is connected, the mirror is not necessarily correctly oriented in the direction of the vertical center line of the trailer. However, the mirror can be centered in an electro-optical system by adjusting the electric circuit on the light receiver side.

When the trailer is disconnected from the tractor, the trailer's front end is first lifted slightly after the coupler's jaw is unlocked, and when the tractor is advanced slightly, the trailer remains in its position.

At this time, the angle detector main body 8 rotates around the horizontal pin in a slight angle range in conjunction with opening and closing of the jaw in the following manner, and detaches and attaches the mirror to the kingpin.

That is, in FIGS. 2 to 4, reference numeral 20 denotes an L-shaped lever.
Above the base end of the jaw 3 at a fulcrum 21 of the bent portion, the base plate of the coupler 2 is pivotally supported in a vertical plane so as to be rotatable. Reference numeral 23 denotes a vertical connecting rod, the upper end of which is pivotally connected to the end of the horizontal portion of the L-shaped lever 20 by a lateral pin 24, and the lower end of which is pivotally connected to a portion near the pivotal end of the angle detector body 8 by a lateral pin 25. Have been.
26 is a pin protruding from the front end of the jaw 3 and FIGS.
In the figure, the pin 26 is loosely fitted in the long hole 22 of the L-shaped lever 20.

In such a structure, when the jaw 3 is closed and locked after the insertion of the king pin as shown in FIG. 3, the jaw 3 rotates around the pin 4 in the direction of the arrow, and the pin 26
Moves in the direction of the arrow as shown in FIG.
The lever 20 rotates around the fulcrum 21 from the solid line position to the broken line position, and the connecting rod 23 moves upward to rotate the angle detector body 8 around the horizontal pin 9 in the direction in which the rear end moves upward. . Then, the mirror moves upward and is attracted to the lower end of the kingpin 1 via the magnet 6.

Conversely, when the jaw is opened, the angle detector main body 8 slightly rotates around the horizontal pin 9 and its rear end moves downward, so that the mirror 5 moves away from the king pin 1 together with its magnet.

According to such a structure, the mirror section automatically attaches to and detaches from the kingpin when the trailer is attached and detached, and the trailer angle is animated on the display of the cabin when the tractor is retracted.

The mirror is attached on the vertical center line of the vertical bar magnet, and a solenoid is provided on the angle detector body to coaxially surround the same bar magnet. The bar-shaped magnet can be pulled away from the kingpin by moving and adsorbing to the lower end of the kingpin, and temporarily exciting the solenoid in the other direction. According to such a means, it is not necessary to pivotally support the angle detector main body so that flapping is possible in conjunction with opening and closing of the jaw.

[Effect of the invention]

In short, according to the present invention, a vertically long angle detector main body having a front end pivotally supported by a horizontal pin slightly below the jaw of the coupler main body and a circular opening provided on the rear end upper surface, the coupler main body and the angle detection A flapping drive member provided between the main body and the flapping device for flapping the angle detector main body. In a device in which a king pin and a magnet to be described later are attached and detached, the core pin is loosely inserted coaxially into the circular opening so that rotation around the vertical center line is free, but relative movement in the same center line direction is restricted and the upper end is restricted. A movable mirror member having a magnet that is attracted to the lower end of the king pin, and an upper end of a vertical reflecting mirror fixed to the lower end, and an upper part in front of the movable mirror member. A plurality of light receiving elements are arranged adjacent to each other in a semicircular shape centered on the movable mirror member and fixed to the angle detector main body, and a light source for directing the movable mirror is disposed at the center position of the light receiving element group. Light receiver,
With a display that animates the relative angle of the tractor and trailer based on the output of the receiver, the driver can quickly and accurately see the trailer angle while sitting in the seat. The present invention is very useful industrially because of obtaining the device.

[Brief description of the drawings]

FIG. 1 is a principle view of the present invention, FIG. 2 is a longitudinal sectional view showing a trailer angle detecting unit of the present apparatus, FIG. 3 is a perspective view showing a mirror attaching / detaching apparatus of FIG. 2, and FIG. FIG. 4 is a view taken in the direction of arrows IV-IV in the figure. FIG. 5 is a side view showing a kingpin of a known trailer,
FIG. 6 is a perspective view showing a coupler of a known tractor, FIG. 7 is a horizontal sectional view and a longitudinal sectional view showing a pin and a coupler in a connected state, and FIG. 8 is a plan view showing a tractor and a trailer retracting. . 1 ... king pin, 2 ... coupler, 3 ... jaw, 4
…… Vertical pin, 5… Mirror, 6… Magnet, 7 ……
Mirror mounting stand, 8 ... Angle detector body, 9 ... Horizontal pin,
10 ... Aperture, 11 ... Small diameter part, 12 ... Receiver, 13 ... Light receiving element, 15 ... Light source, 16 ... Animation display, 17 ... Animation image circuit, 20 ... L-shaped lever, 21 ... … Fulcrum, 22… slot, 23… connecting rod, 24, 25, 26… horizontal pin, θ… trailer angle

Claims (1)

(57) [Scope of request for utility model registration] 1. A vertically elongated angle detector main body having a front end pivotally supported by a horizontal pin slightly below a jaw of a coupler main body and a circular opening provided on a rear end upper surface, the coupler main body and the angle detector main body And a flapping drive member for flapping the angle detector main body, and actuating the flapping drive member in conjunction with a jaw that opens and closes in response to the advance and retreat of the king pin, thereby allowing the king pin and the In a magnet that is detachably attached to a magnet described later, it is loosely coaxially inserted into the circular opening, and can freely rotate around the vertical center line, but is restricted in relative movement in the center line direction, and has a king pin at the upper end. A movable mirror member having a magnet attached to a lower end thereof and having an upper end of a vertical reflecting mirror fixed to the lower end; and the angle detector in front of the movable mirror member. A light receiver fixedly attached to a body, a plurality of light receiving elements arranged adjacent to each other in a semicircular shape centered on the center of the movable mirror member, and a light source for directing the movable mirror at a center position of the light receiving element group And a display for displaying an animation of the relative angle between the tractor and the trailer based on the output of the light receiving element of the light receiver.