JPS60161277A - Coupling structure of hood for coupling vehicle - Google Patents

Abstract

PURPOSE:To uniformize expansion and contraction of a coupling hood and to smooth hood motion, by a method wherein the turn tables of front and rear vehicles are respectively coupled to a mounting frame, being a coupling hood, through a link mechanism which is disposed at the slewing center of front and rear vehicles. CONSTITUTION:A turn table 16 of a front vehicle is coupled to a turn table 17 of a rear vehicle through a slewing bearing, and a mounting frame 15 is coupled to the turn table 17 through the turn table 16 and a link mechanism 18. The link mechanism 18 is disposed symmetrically about a slewing center 0, a slewing shaft 21, rotating integrally with a lever 20, is interposed through a base seat 19 secured to the turn table 16, and a lower end 21a thereof is securly attached to the mounting frame 15. The one end of the link is rotatably supported to arms 19a and 19b erected on the base seat 19 by means of pins 24 and 25. Links 22 and 23 and links 26 and 27 are pivotally supported by means of pins 30 and 31 slid within an oblong hole formed in the lever 20, and the other ends of the links 26 and 27 are pivotally supported to the turn table 17 by means of pins 34 and 35.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connecting structure for a top for a connected vehicle such as a connected bus.

[Prior art]

As shown in Fig. 1, the connected vehicle connected by a towing vehicle surrounds the joint between the front vehicle 1 and the rear vehicle 2 with a hood 3, and bends around an intermediate point 0 when turning to avoid external damage. The hood of the hood expands and the inner hood contracts, but since there is no guiding mechanism in the middle, the amount of expansion and contraction is not necessarily average, resulting in poor durability and unsightly appearance, as well as problems such as vibration and noise generation. was there.

[Purpose of the invention]

The present invention has been made in view of the above points, and is a hood for a coupled vehicle that equalizes the expansion and contraction of the coupled hood to operate smoothly, improves the durability and appearance of the hood, and prevents the generation of vibration and noise. The purpose is to provide a connected structure.

[Structure of the invention]

In order to achieve the above-mentioned object, the present invention connects the turntables of the front and rear vehicles and the attachment frames of the connecting hoods, respectively, by means of a link mechanism in which links are arranged at the turning centers of the front and rear vehicles, and connects the attachment frames of the connecting hoods between the attachment frames and the front and rear vehicles. It is characterized by having the following.

〔Example〕

An embodiment of the present invention will be described based on FIGS. 2 to 4.

A connecting hood 14 consisting of the hood 11 of the front vehicle 10 and the hood 13 of the rear vehicle 12 is connected via a mounting frame 15 disposed between them. The turntable 17 is connected to the turntable 1 through a rotation bearing (not shown), and the mounting frame 15 is connected to the turntable 16 through a link mechanism 18.
It is connected to 7.

This link mechanism 18 is arranged symmetrically about the turning center 0,
A lever 20 is mounted on a pedestal 19 fixed to the turntable 16.
The lower end 21 &
An arm 19 is fixed to a mounting frame 15 and is erected on a pedestal 19.
a, pin 24.25 at one end of link 22.23 to 19b
The other end of the link 22.23 and one end of the link 26°27 are connected to the elongated holes 28, 2 provided in the lever 20.
9 is rotatably supported by a sliding pin 30.31, and the other end of the link 26.27 is attached to an arm 33 having a shaft 32 fixed to the turntable 17 with a pin 34.35.
The shaft 3 is rotatably supported and symmetrically configured.
2 is disposed coaxially with the rotation axis 21.

In this case, the distance l between the center 0 of the shaft 32, which is the center of rotation, and the center a of the pin 24 is equal to the distance l between the center 0 and the center of the pin 34, and the center a of the pin 24 and the center C of the pin 30 are made equal. The distance S between the pins 34 and 30 and the distance S1 between the centers of the pins 34 and 30 are set to be equal.

This link mechanism 18 is configured like a queen, so when both vehicles turn α0, the arm 33 rotates due to the rotation of the shaft 32 fixed to the turntable 17, and the links 22 and 26 correspond to the rotation. to rotate the lever 20.

At this time, the bottle 34 moves by α0, but the distances l and l between the center O of the shaft 32 and the centers a and b of the pins 24 and 34 are equal, and the center C of the pin 30 and the centers of the pins 24 and 34 are equal. Since the distances S and Sl between the respective centers a and b are equal, the rotation angle of the lever 20 is β0 degrees, and the relationship between the angle α and the angle β is β0−α0. Therefore, the mounting frame 15 that moves in conjunction with the movement of the lever 20 is always located exactly in the middle of the bending angles of the front and rear vehicles 10, 12, and as shown in FIG.
The hood 11 of the vehicle and the hood 13 of the rear vehicle 12 are expanded and contracted uniformly.

FIG. 5 shows an embodiment of a link mechanism in which links are arranged symmetrically in the left and right directions with respect to the traveling direction of the vehicle. , an arm 42 with a shaft 41 fixed to a turntable (not shown) of the rear vehicle is connected to a link 43,
44, 45° 46 and pins 47, 48, 49, 50, 51
．． 52 to enable the pins 48 and 51 to slide in long holes 54 and 55 provided in the lever 53,
A pivot shaft (not shown) which rotates together with the lever 53 and is coaxial with the shaft 41 is fixed to a mounting frame (not shown) of the fc connecting hood.

Then, as in the embodiment described above, the distances l and l between the center O of the shaft 41 and the bins 47 and 49 are made equal;
Since the distances S and S between the bin 48, the bin 47, and the bin 49 are made equal, when the interiors of both vehicles turn α0, the lever 53 rotates β0, that is, α2.

〔Effect of the invention〕

As described above, the present invention connects the turntables of the front and rear vehicles and the mounting frames of the connecting hoods, respectively, by means of a link mechanism in which the links are arranged symmetrically around the turning centers of the front and rear vehicles, and the connecting hood is connected between the mounting frames and the front and rear vehicles. Because of this provision, the hood expands and contracts smoothly when the vehicle turns, improves durability, improves appearance, and has effects such as reducing vibration and preventing noise generation.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the state of a conventional connecting top when turning, Fig. 2 is a perspective view showing an embodiment of the link mechanism according to the present invention, and Fig. 3 is a link when the vehicle turns to the right. FIG. 4 is a plan view showing the movement of the link mechanism when the vehicle turns left; FIG. 5 is a plan view showing another embodiment of the link mechanism. FIG. 6 is an explanatory diagram showing the state of a vehicle equipped with a connecting top according to the present invention when turning. 10 is the front vehicle, 11 is the hood, 12 is the rear vehicle, 13 is the hood, 14 is the connecting hood, 15 mounting frames, 16° 17 is a turntable, 18 is a link mechanism, 19 is a pedestal, 20 is a lever, 21 is the pivot axis, 22 and 23 are links, 24.25 is a bottle, 26.27 is a link, 28.29 is a long hole, 30.3
1 is the bottle, 32 is the shaft, 33 is the arm, 34.35
40 is a fixed link, 41 is a shaft, 42 is an arm, 43, 44, 45. 46 is a link, 47, 48.
49, 50, 51. 52 is a bottle, 53 is a lever, 54.
55 is a long hole. Patent applicant Nippon Sharyo Manufacturing Co., Ltd.

Claims (1)

[Claims] 1. The turntable of the front and rear vehicles and the mounting frame of the connecting hood are connected to each other by a link mechanism in which links are arranged symmetrically around the turning centers of the front and rear vehicles, and the connecting hood is provided between the mounting frame and the front and rear vehicles. A connecting structure for a connected vehicle hood.