KR102105833B1 - Structure of cab tilting stay for truck - Google Patents

Abstract

The present invention relates to a cap tilting stay structure of a medium-sized or small truck, and more specifically, a handle portion coupled to an end portion of a stopper lever and having an inner space formed inside an opening formed in the center, an inner space of the handle portion It is accommodated so as to be movable, the inner lever having a projection pin extending toward the upper stay direction on one side and disposed on one side of the upper stay, the guide portion having a projection groove to be inserted into the projection pin Included, when the upper stay and the lower stay are fully unfolded, the protruding pin is inserted into the protruding groove to prevent the locking of the stopper lever from being unlocked, and can be easily operated by hand without the need for a safety pin. For trucks that prevent the stopper lever from being unlocked immediately by operator misoperation or external impact. It relates to a cap tilting stay structure.

Description

STRUCTURE OF CAB TILTING STAY FOR TRUCK

The present invention relates to a cap tilting stay structure of a medium-sized or small-sized truck, and more particularly, when the upper stay and the lower stay are completely unfolded, a protruding pin is inserted into the protruding groove to prevent the stopper lever from being unlocked. It relates to a cab tilting stay structure for a truck, characterized in that.

In general, a cab tilting system of a truck is utilized to conveniently inspect and maintain various devices provided in the engine room by raising or lowering the cab located at the top of the truck's engine room, that is, the cab.

The cap tilting system uses a structure that is manually rotated and tilted according to the specifications of the truck, and a structure that is automatically tilted by an operating device operated according to the operation of a switch.

The cap tilting stay is installed on the cab of the truck, which is tilted by manual operation or operation of a switch, so that the cap tilting stay is supported between the cab and the vehicle body in order to prevent the cap from falling due to a malfunction in the tilted state.

With this cab tilting stay, the cab of the truck maintains the tilting state at a predetermined angle, and a driver or a mechanic can safely inspect and maintain the engine, chassis, and other electric parts disposed under the cab.

1 is a schematic side view showing a state in which the cap is tilted in a general truck, and FIG. 2 is an enlarged perspective view showing a state in which a safety pin is inserted in a conventional truck tilting stay structure for a truck.

1 and 2, in the conventional truck cab tilting stay structure, the lower end of the upper stay 1 and the lower end of the lower stay 2 are rotatably connected via a hinge pin 3, The notch shape 4 ′ of the stopper lever 4 rotatably coupled to the upper stay 1 is engaged with the upper end of the lower stay 2 to prevent the cap from falling.

A safety pin 5 connected by a wire 5 'is stored at the upper part of the upper stay 1, and during maintenance work after cap tilting, the safety pin 5 is placed in a safety hole 1' formed in the upper stay 1 It is inserted to prevent the stopper lever 4 from being lifted upward due to a mistake or accident during maintenance.

Therefore, the upper stay 1 and the lower stay 2 are primarily prevented from being rotated by the notch shape 4 'of the stopper lever 4, and the rotation of the stopper lever 4 is completely prevented by the safety pin 5. It is prevented, and the user cannot release the cap tilting lock unless the safety pin 5 is removed.

However, the conventional truck cab tilting stay structure using the safety pin 5 has a problem in that it is cumbersome for the operator to insert the safety pin 5 into the safety hole 1 'with the cab tilting stay extended. .

Accordingly, there is a problem in that the operator frequently performs maintenance and inspection work without the safety pin 5 inserted and always works in a state of being exposed to danger.

In addition, during the maintenance work after tilting the cap, a driver or a mechanic works at the lower part of the cab. In this case, there is a problem in that the wire 5 'connected to the safety pin 5 is detached from the tool or the body of the worker during the work process. have.

Furthermore, as the safety pin 5 stored in the upper stay 1 comes out of the vehicle while driving, and it hits the parts under the cab, noise often occurs, and the driver often operates with the safety pin 5 removed. Therefore, there is a problem that there is a high risk of a safety accident occurring during maintenance work.

The present invention has been devised to solve the above-described problems of the prior art, and has an object to provide a cab tilting stay structure for a truck that can be easily operated by hand without using a conventional safety pin.

In addition, another object of the present invention is to provide a cap tilting stay structure for a truck that can prevent a safety accident during work by configuring the stopper lever not to be immediately unlocked due to an operator's malfunction or external impact.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by a person having ordinary knowledge in the art from the description of the present invention. .

The configuration of the present invention for achieving the above object, the upper stay and the lower stay are rotatably connected via a hinge pin, and prevents the upper stay and the lower stay from collapsing when tilting the cab of the truck. In order to prevent the stopper lever is configured to support the upper end of the lower stay, the truck tilting stay structure includes: a handle part coupled to an end of the stopper lever and having an inner space formed therein with an opening formed in the center; An inner lever which is accommodated so as to be movable in the inner space of the handle part and has a protruding pin extending toward an upper stay on one side thereof; And a guide portion disposed on one side of the upper stay and having a protrusion groove to insert the protrusion pin; Including, when the upper stay and the lower stay is fully unfolded, the protrusion pin is inserted into the protrusion groove to prevent the locking of the stopper lever is released.

In addition, the cap tilting stay structure for a truck according to an embodiment of the present invention includes: a lever spring mounted between a first mounting groove formed on the inner surface of the handle portion and a second mounting groove formed on the outer surface of the inner lever; Further comprising, it is preferable that the inner lever and the projection pin by the lever spring receives an elastic restoring force in the upper stay direction.

In addition, the cab tilting stay structure for a truck according to an embodiment of the present invention is attached to one side of the upper stay, a guide housing having a guide groove for sliding the guide pin formed in the guide portion; And a guide spring disposed between the guide part and the guide housing inside the guide housing. It further includes, it is preferable that the guide portion by the guide spring receives an elastic restoring force in the lower stay direction.

In addition, in the cab tilting stay structure for a truck according to an embodiment of the present invention, a part of the lower end of the lower stay is bent and a corner portion is formed, and the lower end direction of the guide portion is formed as an inclined surface having an inclination angle. While the upper stay and the lower stay are unfolded, it is preferable that the inclined surface of the guide part rides over the corner of the lower stay.

The present invention having the configuration as described above, there is an effect that the operator can easily operate the stopper lever with a finger without the need to accurately insert the safety pin into the safety hole, thereby improving the convenience of work.

In addition, since the locking of the stopper lever is not released unless the operator arbitrarily operates the stopper lever with the finger, there is an effect of preventing the safety accident caused by the safety pin being released during work.

Further, by removing the component corresponding to the conventional safety pin, there is an effect of completely removing noise generated when the safety pin escapes from the upper stay and bumps into other parts while driving the vehicle.

1 is a schematic side view showing a state in which the cap is tilted in a typical truck.
Figure 2 is an enlarged perspective view showing a state in which the safety pin is inserted in the conventional truck cab tilting stay structure.
Figure 3 is an enlarged perspective view showing the state of the cab tilting stay structure for a truck according to an embodiment of the present invention.
4 is an enlarged projection side view showing a state of a cab tilting stay structure for a truck according to an embodiment of the present invention.
Figure 5 is a side view and an enlarged view showing a state according to the operating state of the cab tilting stay structure for a truck according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar elements throughout the specification.

In addition, terms or words used in the present specification and claims should not be interpreted as being limited to ordinary or lexical meanings, and the inventor appropriately defines the concept of terms in order to describe his or her invention in the best way. Based on the principle that it can be done, it should be interpreted as a meaning and a concept consistent with the technical idea of the present invention.

3 is an enlarged perspective view showing a state of a cab tilting stay structure for a truck according to an embodiment of the present invention, and FIG. 4 is an enlarged projection showing a state of a cab tilting stay structure for a truck according to an embodiment of the present invention Side view.

The cab tilting stay structure for a truck according to an embodiment of the present invention is coupled to an end portion of the stopper lever 30, and the handle portion 40 is formed with an inner space 42 formed around the opening 41 formed in the center. ), Is accommodated so as to be movable in the inner space 42 of the handle portion 40, the inner lever 50 and the upper having a projection pin 51 extending toward the upper stay 10 on one side thereof It is arranged on one side of the stay 10, it characterized in that it comprises a guide portion 60 having a projection groove 61 so that the projection pin 51 can be inserted.

In trucks, a cab (not shown) with a driver's seat is usually installed in the front, and a cargo compartment (not shown) is installed so that cargo can be loaded on the rear. Tilted for maintenance.

At this time, a cap tilting stay composed of an upper stay 10, a lower stay 20, and the like is rotatably mounted to the lower portion of the cap so that the cap can maintain a tilting state at a predetermined angle.

The upper stay 10 and the lower stay 20 are rotatably connected via a hinge pin 12 which is coupled to the lower portion of the upper stay 10 and the upper portion of the lower stay 20, and tilting the cap The upper stay 10 and the lower stay 20 are completely unfolded to form a straight line, and when the tilting of the cap is released, the upper stay 10 and the lower stay 20 are superimposed and stored under the cap.

A stopper lever 30 is rotatably connected to the lower portion of the upper stay 10 via a lever pin 31, and the stopper lever 30 is through a through hole 11 formed in the upper stay 10. It is rotated up and down.

As shown in Figure 3, the lower surface of the stopper lever 30 is formed with a notch 32 in the form corresponding to the side of the lower stay 20, the upper stay 10 when tilting the cab of the truck When the lower stay 20 is stretched in a straight line, the upper stay 10 and the lower stay 20 are not folded as the notch 32 of the stopper lever 30 engages the lower stay 20. .

The end portion (right end in the illustrated embodiment) of the stopper lever 30 is coupled to the handle portion 40, wherein the handle portion 40 is formed with an opening 41 in the center and the opening 41 is centered. In the inner space 42 is formed around it.

In addition, the inner space 42 of the handle portion 40 is accommodated so that the inner lever 50 can be moved left and right, and a protruding pin 51 is provided on one side of the inner lever 50 (left in the illustrated embodiment). ) Extends toward the upper stay 10 (left direction in the illustrated embodiment).

In the illustrated embodiment, the handle portion 40 is formed in an annular shape in which a circular opening 41 is formed in the center, and the inner space 42 and the inner lever 50 are also formed in an annular shape. In consideration of interference with other parts, the handle portion 40, the inner space 42, and the inner lever 50 may be formed in various shapes such as a square ring shape, a polygonal ring shape, and an elliptical ring shape.

On the inner surface of the handle portion 40, a first mounting groove 43 protrudes toward the outer direction of the handle portion 40, and on the outer surface of the inner lever 50, a second mounting groove 52 is provided. It is recessed toward the inner direction of the handle part 40, and a lever spring 44 is mounted between the first mounting groove 43 and the second mounting groove 52.

The lever spring 44 provides elastic restoring force to the inner lever 50 and the protruding pin 51 so that the inner lever 50 and the protruding pin 51 can always receive force in the direction of the upper stay 10, , Accordingly, the protruding pin 51 maintains a tendency to always be in contact with the guide portion 60 to be described later.

3 and 4, a guide portion 60 provided with a projection groove 61 so that the projection pin 51 can be inserted into one side of the upper stay 10 so that the guide portion 60 can be moved up and down. Is placed.

The guide portion 60 is accommodated inside the guide housing 64 attached to the upper stay 10, the guide pin 62 formed on one side of the guide portion 60 is a guide formed on one side of the guide housing 64 As the sliding movement on the groove 64a, the guide unit 60 is slidably moved inside the guide housing 64.

A guide spring 65 is mounted between the guide housing 64 and the guide portion 60, and the guide spring 65 provides an elastic restoring force to the guide portion 60 so that the guide portion 60 is always low stay (20) to be able to receive the force in the direction.

Figure 5 is a side view and an enlarged view showing a state according to the operating state of the cab tilting stay structure for a truck according to an embodiment of the present invention.

Specifically, FIG. 5A shows a state in which the cap of the truck is tilted, so that the upper stay 10 and the lower stay 20 are completely unfolded, and FIG. 5B shows the inner lever () by an operator using a finger to release the cab tilting. 50) is drawn, and FIG. 5C shows a state in which the inclined surface 63 of the guide portion 60 is in contact with the corner portion 21 at the top of the stay 20 during the cap tilting process or the cap tilting release process. 5D shows a state in which the inclined surface 63 of the guide portion 60 is completely separated from the corner portion 21 of the stay 20 during the cap tilting process or the cap tilting release process.

The process of unlocking the cap tilting stay of the truck according to an embodiment of the present invention (cap tilting is released) is as follows.

5A, when the cab of the truck is tilted and the upper stay 10 and the lower stay 20 are completely unfolded, the protruding pin 51 of the inner lever 50 protrudes from the guide portion 60. It is inserted into the groove 61 and locked. In this state, even when an external load is applied, the stopper lever 30 does not move up and down.

Therefore, the notch 32 of the stopper lever 30 is maintained in a state where the upper end of the lower stay 20 is supported, and a safety accident that may occur during work due to an operator's misoperation or external impact is prevented.

As shown in Figure 5b, when the operator inserts a finger into the opening 41 of the handle portion 40 and pulls the inner lever 50 to the right (in the direction of the arrow in the illustrated embodiment), the projection pin 51 is It is separated from the projection groove 61 and accordingly the upper stay 10 and the lower stay 20 are prepared to be folded.

As shown in Figure 5c, when the operator pushes the stopper lever 30 upward while the inner lever 50 is pulled, the notch 32 of the stopper lever 30 and the lower stay 20 are engaged. As it is released, the upper stay 10 and the lower stay 20 begin to fold.

At this time, the guide portion 60 is moved in the direction of the lower stay 20 by the guide spring 65, and accordingly the projection pin 51 is not on the other side of the guide portion 60 but the projection groove 61 Contact.

As shown in FIG. 5D, the operator no longer needs to keep the inner lever 50 in a pulled state, and the upper stay 10 and the lower stay 20 are folded to release the cab tilting of the truck.

The process of locking (cap tilting) the cab tilting stay of the truck according to the embodiment of the present invention is as follows.

Contrary to the above-described process, as shown in FIG. 5D, when the cap s tilting of the truck is released and the upper stay 10 and the lower stay 20 are folded, the protruding pin 51 is detached from the protruding groove 61 have.

As shown in FIG. 5C, while the upper stay 10 and the lower stay 20 are gradually unfolded, the inclined surface 63 formed at the end of the guide unit 60 in the lower stay 20 direction is the lower stay 20. The upper curved cut corner portion 21 is passed over, and the guide portion 60 is moved into the guide housing 64.

5A and 5B, when the upper stay 10 and the lower stay 20 are completely unfolded and located in the seat 22 of the upper end of the lower stay 20 of the guide 60 , As the protrusion groove 61 and the protrusion pin 51 are arranged in a straight line, the protrusion pin 51 is inserted into the protrusion groove 61.

Therefore, the stopper lever 30 is no longer moved up and down, and the operator can maintain the upper stay 10 and the lower stay 20 in an unfolded state without separately inserting a conventional safety pin (5 in FIG. 2). There will be.

In the technical field to which the present invention pertains, the present invention described above is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible without departing from the technical spirit of the present invention. It will be obvious to those of ordinary skill.

10: Upper Stay
11: Through hole
12: hinge pin
20: Lower Stay
21: corner
22: seating portion
30: stopper lever
31: lever pin
32: Notch
40: handle
41: opening
42: interior space
43: first mounting groove
44: lever spring
50: inner lever
51: protruding pin
52: second mounting groove
60: guide unit
61: projection groove
62: guide pin
63: slope
64: guide housing
64a: guide home
65: guide spring

Claims (4)

Truck with upper stay and lower stay pivotably connected via hinge pins, and the stopper lever supports the top of the lower stay to prevent the upper stay and lower stay from collapsing when tilting the cab of the truck In the dragon cap tilting stay structure,
A handle portion coupled to an end of the stopper lever and having an inner space formed therein with an opening formed in the center;
An inner lever which is accommodated so as to be movable in the inner space of the handle part and has a protruding pin extending toward an upper stay on one side thereof; And
A guide portion disposed on one side of the upper stay and having a projection groove to insert the projection pin; It includes,
When the upper stay and the lower stay are completely unfolded, the protrusion pin is inserted into the protrusion groove to prevent the lock of the stopper lever from being unlocked.
According to claim 1,
A lever spring mounted between the first mounting groove formed on the inner surface of the handle portion and the second mounting groove formed on the outer surface of the inner lever; Further comprising,
The inner lever and the protruding pin by the lever spring receives the elastic restoring force in the direction of the upper stay Cab tilting stay structure for a truck.
According to claim 1,
A guide housing attached to one side of the upper stay and having a guide groove for sliding the guide pin formed in the guide portion; And
A guide spring disposed between the guide part and the guide housing inside the guide housing; Further comprising,
The guide portion by the guide spring, the cap tilting stay structure for trucks, characterized in that receiving the elastic restoring force in the direction of the lower stay.
The method of claim 3,
At the upper end of the lower stay, a part of the lower end is curved to form a corner,
The end portion in the lower stay of the guide portion is formed of an inclined surface having an inclined angle,
While the upper stay and the lower stay are unfolded, the inclined surface of the guide part rides over the corner portion of the lower stay and the cap tilting stay structure for the truck is characterized in that.

Images