JPS6139681Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lid lock and a work status display device for a garbage collection vehicle.

Conventionally, when garbage collection vehicles were driven at low speed or stopped to collect garbage left on the roadsides of households in urban areas or residential areas, yellow flags or reflective lights were used to prevent interference with other means of transportation. A plate is attached to a part of the vehicle body to indicate to other vehicles or pedestrians that work is in progress, but this makes it difficult to clearly display the information. Furthermore, since it is necessary to attach or remove the flag or reflective plate at the beginning and end of the work, it is time-consuming and there is a risk that the instructions for attaching and removing the display may not be followed. Furthermore, if the lid is not fully locked, the lid may open while walking or
When the lid is open, it sometimes vibrates in the vertical direction, causing problems in the garbage loading operation.

This invention clearly displays and confirms that work is in progress to other means of transportation at the rear to ensure traffic safety and smoothness, as well as to prevent danger by opening and closing the lid of the rear cargo box. A lid lock for a garbage collection vehicle that is raised at the center of the rear surface of the vehicle in relation to its operation, and that ensures that the lid is locked in both the closed and open states. The purpose is to provide a work status display device.

The configuration of the present invention will be explained below based on the embodiment shown in the drawings.

In Figs. 1 to 3, 1 is a partially omitted rear cargo box of a garbage collection vehicle, and 2 is a slightly curved lid of the rear cargo box 1 that opens and closes in a sliding manner. A locking pin 3 and a guide pin 4 are protruded from the upper and lower ends of both end faces, respectively. The guide pin 4 is slidably fitted into guide grooves 6 provided on both sides of the input port 5 of the rear cargo box 1 to support the lower end of the lid 2. Reference numeral 7 denotes a connecting rod rotatably mounted between both side plates 8, 8 of the rear cargo box 1, and at both ends of this connecting rod 7 there is a pair of rotating metal fittings 1 having elongated holes 9 in the upper part.
0 is fixed at a predetermined standing angle. Reference numeral 11 denotes a handle having a grip part 12 whose base end is fixed to one end of the connecting rod 7 so as to hold the rotating fitting 10,
This is attached in the opposite direction to the rotating metal fitting 10 and causes the grip portion 12 to protrude outside from the side plate 8 of the rear cargo box 1. Reference numeral 13 designates a pair of lock fittings having a predetermined shape having a locking portion 14 at the upper end and a protruding portion 16 at the middle. 9, and a long hole 17 formed at the lower end is slidably fitted into a fixing pin 18 protruding from the inner surface of the side plates 8, 8 to support it along the inner surface of the side plates 8, 8. . Reference numeral 19 denotes a mounting bracket fixed at a predetermined position on both side plates 8, 8 of the rear cargo box 1;
A tension spring 20 is tensioned between the lower edge of the lock fitting 13 and the tension spring 20 is used, and the tension spring 20 constantly urges the lock fitting 13 rearward with the fixing pin 18 as a fulcrum. is locked to the locking pin 3 at the upper end of the lid 2 to hold the lid 2 in a closed state. 21 is a fixing rod fixed to the outer surface of the lid body 2 along the upper edge; 22 is a base end 22a rotatably pivoted to a pivot 23 fixed to a predetermined position on the outer surface of each of the side plates 8, 8; The distal end portion 22b of the rotary arm 22 is rotatably attached to a small-diameter protruding portion of the fixed rod 21 that protrudes outward from the side plates 8, 8. Reference numeral 24 denotes a tension spring for rotating and raising the rotary arm 22 and simultaneously opening the lid 2.
4 is stretched between a bracket 25 fixed to the outer surface of each of the side plates 8, 8 and a bracket 20 erected on the upper surface of the rotary arm 22. Reference numeral 27 denotes a mounting rod whose both ends are fixed to the tip 22b of the rotary arm 22 and extends between both sides of the rear cargo box.A rectangular display plate 28 is mounted approximately in the center of the mounting rod 27. Fixedly installed in a straight line in the opposite direction to the arm 22
When the display board 28 is erected as shown by the two-dot chain line in the figure,
A display 28' that is visible from the rear displays "Work in progress" in the width direction of the garbage collection vehicle.

Therefore, if garbage collection work is not carried out,
The lid 2 of the rear cargo box 1 is kept closed. That is,
The locking part 14 of the lock fitting 13 is fitted and locked into the locking pin 3 at the upper end of the lid 2 covering the input port 5 of the rear cargo box 1 by the tensile force of the tension spring 20, and the lid 2 is held closed. At this time, pins 16 and 18 are located at the upper ends of elongated holes 9 and 17, respectively.

When the handle 11 is gripped by the handle 12 and the lever is rotated in the direction of the arrow in FIG. The rotating metal fittings 10 that have been rotated simultaneously rotate in the direction of the arrow, and the locking metal fittings 1
The protruding pin 16 of No. 3 is moved in the above rotation direction while sliding downward along the elongated hole 9 of the rotation fitting 10. Then, since the long hole 17 of the lock fitting 13 is slidably fitted into the fixing pin 18 of the side plates 8, 8, the lock fitting 13 resists the tensile force of the tension spring 20 while being regulated by the fixing pin 18. It is moved to the front side of the rear cargo box 1,
The engagement state between the locking portion 14 and the locking pin 3 of the lid body 2 is released. When the locking fitting 13 is released from the lid 2 in this way, the tension spring 2
4, the rotating arm 22 rotates and stands up in the direction of the arrow in FIG. While being guided and supported by guide pins 4 fitted into the display surface 2, it slides upward and is held in the open state as shown by the two-dot chain line.
Display board 2 with "Work in progress" displayed at 8'
8 stands up like a two-dot chain line, clearly indicating to other traffic behind that garbage collection is currently in progress. Furthermore, after releasing the locking state between the lid body 2 and the locking metal fitting 13, when you release your hand from the grip part 12 of the handle 11, the handle 11, the rotating metal fitting 10, and the locking metal fitting 13 will release the tension spring 20. However, in order to keep the lid 2 open continuously during the garbage collection operation, the tension spring 20 is activated when the lid 2 is slid upward. Using the stored elasticity, the guide pin 4 causes the protruding portion 15 to retract and return to its original position, and the protruding portion 15 engages and supports the guide rod 4.

When the garbage collection work is completed, the handle 11 is rotated in the direction of the arrow in FIG.
is slid downward against the tensile force of the tension spring 24 while being guided by the guide pin 4 fitted into the guide groove 6, and the locking part 14 of the lock fitting 13 is again moved to the upper end of the lid body 2. The lid body 2 is held in the closed state by being locked to the locking pin 3 by the tensile force of the tension spring 20. Then, by sliding the lid 2 downward, the rotating arm 22 rotates in the opposite direction of the arrow about the pivot 23 and returns to its original position, and the display plate 28 is lowered near the top of the lid 2. let Therefore, it can be seen that the garbage truck in the rear is not collecting garbage.

As explained above, in this invention, the guide pins on both sides of the lower end are fitted and guided in the guide grooves on both sides of the input port so that they can move up and down, and the upper end of the lid can be moved up and down on both sides of the rear cargo box above the input port. The lid body is connected to the tip of a rotary arm which is pivotally attached to the body and which is constantly pulled in the upright direction by a tension spring, so that the lid body is always pulled in the opening direction;
A work status display board is fixed on the outer surface of the lid and at the center of the mounting rod fixed between the ends of the rotating arms on both sides, parallel to the extension line of the rotating arm, and integrated with the rotating arm. It has a locking part at the top tip that engages with locking pins provided on both sides of the upper end of the lid in the closed state, and a locking part at the bottom of the locking part for holding the lid in the open state. The lower end of the locking fitting, which has a protruding part that locks with the guide pins on both sides of the lower end and prevents the lid from falling, is connected to the elongated hole in the vertical direction to the fixing pin protruding from both sides of the rear cargo box near the upper end of both sides of the input port. It is fitted so that it can be rotated through the long hole and can be moved vertically within the elongated hole, and the locking fitting is constantly pulled by a tension spring in the direction in which the end locking part locks with the locking pin and downward. A connecting shaft passing through both sides of the rear cargo box is rotatably provided on the unlocking direction side of the locking metal fitting, and a rotating metal fitting is fixed to both ends of this connecting shaft, and the rotating metal fitting and the locking metal fitting are connected to each other. are connected by a protruding pin and a long hole,
A handle for unlocking the lock fitting is attached to one end of the connecting shaft, so when loading garbage, simply operate the handle in the direction of unlocking the lock fitting, and the lid will automatically open under the action of the tension spring. It is opened by a rotating arm that stands up and rotates, and at the same time, the display board is automatically raised high above the center of the rear cargo box so that it can be clearly displayed and confirmed by vehicles or pedestrians in the rear. The open state of the lid is maintained by the protruding portion provided on the locking metal fitting that locks and supports the guide pins on both sides of the lower end of the lid, thereby preventing the lid from falling unexpectedly. When moving through a garbage collection site in an open state, the lid body in the open state does not vibrate in the vertical direction even if the vehicle body vibrates due to roughness or the like. Further, the lid is locked in the open state when the guide pins on both sides of the lower end of the lid automatically cross over the protruding portion of the lock fitting just before the lid reaches the rising end. Furthermore, when the garbage loading work is completed, the lid is lowered, but at this time, the guide pins on both sides of the lower end of the lid can automatically get over the protruding part of the locking fitting, and the lid is lowered to the lower end. When the lock pin reaches the upper end of the lid, the locking pin on the top side of the lid automatically overcomes the locking part at the end of the locking metal fitting, and immediately returns to lock the lid in the closed state. At the same time, the display plate automatically closes. It can be folded down to the center of the lid. In particular, the lock fitting and handle are fixed on separate pivots,
In addition, since the locking metal fitting can be moved up and down, the engagement relationship between the end locking part of the locking metal fitting and the locking pin can be deepened in the vertical direction when the lid is closed, and the locking metal fitting can be moved vertically. It is possible to reliably prevent the lid from being opened due to unexpected release of the lock due to vibrations, etc., and it is possible to prevent the running obstruction of other vehicles and traffic obstruction due to the scattering of loaded garbage to the rear. .
Moreover, the opening and closing operations of the lid are performed smoothly because the guide pins on both sides of the lower end are guided by the guide grooves. Furthermore, since the display board is undulating at the center of the rear surface of the rear cargo box, it can be made with a large width and can be seen clearly even from a distance, and does not protrude to the side of the vehicle at all. , it is possible to drive in narrow alleys, and the vehicle does not become a hindrance to other vehicles.

[Brief explanation of the drawing]

Fig. 1 is an explanatory view of the rear side of the rear cargo box of a garbage collection vehicle equipped with the device according to the present invention, Fig. 2 is an explanatory view of the left side with a portion thereof omitted, and Fig. 3 is an explanatory view of the right side. . DESCRIPTION OF SYMBOLS 1...Rear cargo box, 2...Lid, 22...Rotating arm, 22b...Tip, 27...Mounting rod, 28...
...Display board.

Claims (1)

[Scope of utility model registration request] The upper end of the lid body, in which the guide pins on both sides of the lower end are fitted and guided so as to be raised and lowered into the guide grooves on both sides of the input opening, is pivotably mounted on both sides of the rear cargo box above the input opening so as to be able to rise and fall, and is constantly pulled. The lid is connected to the tip of the rotating arm pulled in the upright direction by a spring to pull the lid in the open direction, and the work status display board is placed on the outside of the lid and between the tips of the rotating arms on both sides. A mounting rod is fixed at the center of the mounting rod, parallel to the extension line of the rotating arm, and rotates up and down together with the rotating arm. has a locking portion that engages with the locking pin, and
At the bottom of the locking part, attach the lower end of the locking metal fitting, which has a protruding part that locks to the guide pins on both sides of the lower end of the open lid to prevent the lid from falling, on both sides of the rear cargo box near the upper end of both sides of the input port. The fixing pin protruding from the surface is rotatable through an elongated hole in the vertical direction, and is fitted so as to be movable in the up and down direction within the elongated hole. A connecting shaft is provided rotatably in the direction of locking the stop pin and pulled downward, and extends through both sides of the rear cargo box in the direction of unlocking the locking metal fittings. A garbage collection characterized in that a metal fitting is fixedly installed, the rotating metal fitting and the locking metal fitting are connected by a protruding pin and an elongated hole, and a handle for unlocking the locking metal fitting is attached to one end of the connecting shaft. Car lid lock and work status display device.