KR100277441B1 - Flow control device of truck cap - Google Patents

Abstract

The present invention relates to a flow control device (a control device for flowage a cab of a truck), and to the flow of the cap generated by the gear shift of a large truck having a tilting function of the cap (waggling phenomenon) In order to improve the ride comfort of the truck, a through hole is penetrated in the upper center, and a fixing part for fixing to the cap bridge is formed at the lower side, and an oil-filled cylinder having control and a damper function of lifting the lifting piston is formed therein. The floating control part is formed of a lifting piston which is inserted into the inside of the lifter and blocks the oil passing through the lift valve. The floating control part is formed on a side of an air spring for supporting a floating bar on which the rear of the truck's cap is seated. Bars and capbridges are supported so that electrical signals are applied according to the operation of the switch. And by the operation it relates to a flow control apparatus for a cap for a truck to occur operating portion for controlling the opening and closing operation of the lifting piston.

Description

Flow control device of truck cap

The present invention relates to a flow control device (a control device for flowage a cab of a truck), and to the flow of the cap generated by the gear shift of a large truck having a tilting function of the cap (waggling phenomenon) The present invention relates to a flow control device of a cab for a van so as to improve ride comfort of a van.

In general, the lorry is located under the cab of the engine room and the cap for opening and closing the engine room is hinged to the front to be tilted forward and open so that the inspection and maintenance of the engine located inside.

At this time, the cap is hinged to the vehicle body and rotated around the hinge in accordance with the operation of the tilting cylinder was made tilting, seated on the upper side of the vehicle body was fixed by the locking device.

On the other hand, the cap is installed on the vehicle body so as to support the front and rear sides of the lower side of the cap, respectively, in order to absorb the shock transmitted from the vehicle body and improve the riding comfort, so as to support the cap seated on the upper side from the body The cap is buffered by an air spring filled with the air pressure supplied at a predetermined pressure so that the shock transmitted is easily made, thereby improving the riding comfort.

At this time, the air spring is a leveling valve that detects it so as to maintain the cap from the body to a certain height to control the supply of air from the air tank to fill the air of the air spring to a predetermined pressure to absorb the shock delivered from the body A surge tank for correcting the buffering effect of the cap by increasing the amount of air filled at a predetermined pressure was connected to each air spring so as to supplement the air supplied from the leveling valve.

The air spring supporting the front of the cap is installed on the vehicle body to support the front of the cap, and the rear of the cap seats the rear of the cap to the upper side of the vehicle body, that is, the cap bridge for tilting the cap. The support of the cap was made to support the floating bar.

That is, as shown in FIG. 1, the air spring 100 supporting the rear of the cap may respectively support the air spring 100 supporting the floating bar 120 on which the cap is seated on both sides of the cap bridge 110. It is installed vertically, supplying air to the air spring 100 and the leveling valve 130 for controlling the supply of air to control the height of the cap is connected to the air tank 140 is supplied from the air tank 140 The air is supplied to support the cap so that the function of the air spring 100 is maintained in an appropriate state.

However, the air spring as described above can be easily absorbed by the impact of the road surface transmitted to the cap through the vehicle body, but the riding comfort can be improved. Due to the shock transmitted, the air spring supporting the rear of the cap is momentarily compressed or inflated, causing the cap to flow in the front and rear directions (wheeling), leading to a decrease in ride comfort.

Therefore, the present invention is to solve the above problems, it is possible to prevent the flow of the cap by the gear shift of the truck by preventing the lifting operation by the air supplied air spring for supporting the cap according to the gear shift of the truck. And it is an object of the present invention to provide a flow control device of the cab for the van so that the ride comfort of the van.

In order to achieve the above object, the present invention is to support the floating bar for the seating of the cap bridge and the cap and the air spring to absorb the shock, connected to supply air to the air spring and to control the height of the cap In a truck in which a leveling valve for controlling the supply of air is connected to an air tank and the function of the air spring is maintained in a proper state by the pressure of air supplied from the air tank, a through hole is penetrated through the upper center and a cap bridge at the lower side. A fixed part for fixing is formed, and a cylinder filled with oil having a control and damper function of lifting and lowering of the lifting piston and a rotary valve inserted and inserted into the inside of the cylinder to lift and block the passing oil are lifted according to opening and closing. Lifting control unit consisting of a limited lifting piston of the By installing the floating bar and the cap bridge on one side of the air spring for supporting the floating bar seated on the rear, and is operated by an electrical signal applied according to the operation of the switch and made of an operating part for controlling the opening and closing operation of the lifting piston The desired purpose is achieved.

As described above, the elevating piston of the present invention is inserted into the cylinder and ascends, so that the oil hole through which the oil passes is protruded at a predetermined interval and protrudes toward the upper center of the piston case and is inserted into the through hole of the cylinder. And a rotary valve which is inserted into the piston case, and is inserted into the piston case and passes through the same discharge hole as the oil hole penetrated by the piston case, and protrudes upward and is inserted into the rod case and protrudes upward. The upper end is characterized in that the operating portion is made of a rotating shaft is fixed to the operating link through the long hole for hinge coupling.

The rotating shaft of the present invention as described above has a locking jaw is formed to be coupled to the floating bar rotatable structure on the upper end of the cap is seated and the locking bracket is coupled to the floating bar in a rotatable structure is coupled to the locking jaw is provided It is characterized by.

The operating part of the present invention as described above is operated by a signal applied from the switch and the switch is installed close to the contact with the contact according to the operation of the clutch pedal for gear shifting is hinged to the operation link on the top of the rotary shaft The operation link has a feature consisting of a solenoid to be rotated at a predetermined angle around the rotation axis.

1 is a front view showing a conventional cap support structure

Figure 2 is a front view showing a state in which the flow control apparatus according to the present invention is applied

Figure 3 is an enlarged cross-sectional view of the flow control apparatus according to the present invention

Figure 4 is a perspective view showing the main portion of the flow control apparatus according to the present invention

5 is a plan view showing an open state of the flow control apparatus according to the present invention

6 is a plan view showing a closed state of the flow control apparatus according to the present invention

Explanation of symbols for major symbols in the drawings

10 cylinder 14 fixed part

16: lifting piston 18: rotary valve

20: lift control unit 24: operating unit

26: oil hole 28: piston case

30: rod case 32: discharge hole

36: operation link 38: rotation axis

40: locking jaw 42: rotating bracket

100: air spring 110: cap bridge

120: floating bar L: oil

Hereinafter, with reference to the accompanying drawings an embodiment according to the flow control apparatus of the present invention cab cap as follows.

2 is a front view showing a state in which the flow control apparatus according to the present invention is applied, FIG. 3 is an enlarged cross-sectional view of the flow control apparatus according to the present invention, and FIG. 4 is a perspective view showing the main part of the flow control apparatus according to the present invention. Air spring 100 for absorbing the shock by supporting the cap bridge 110 and the floating bar 120 for the seating of the cap, connected to this to supply air to the air spring 100 to control the height of the cap In order to control the supply of air to the leveling valve 130 is connected to the air tank 140, the freight of the air spring 100 to maintain the proper function of the air spring 100 by the pressure of the air supplied from the air tank 140 In the above, the through hole 12 is penetrated in the center of the upper side and the fixing portion 14 for fixing to the cap bridge 110 is formed in the lower side and the inside having a control and damper function of lifting the lifting piston 16 The lifting piston is inserted into the cylinder 10 filled with the work (L) and the rotary valve 18 which is inserted into the cylinder 10 and lifts and blocks the oil (L) that passes through the lift. The lifting bar 20 formed of 16) is installed such that the floating bar 120 and the cap bridge 110 are supported on one side of the air spring 100 supporting the floating bar 120 on which the cab rear of the van is seated. And is operated by an electrical signal applied according to the operation of the switch 22 is composed of an operating unit 24 for controlling the opening and closing operation of the lifting piston (16).

The lifting piston 16 of the present invention configured as described above has a piston case 28 and the piston through which oil holes 26 through which oil L passes are passed at regular intervals as the lifting piston 16 is inserted into the cylinder 20 and lifted. A rod case 30 protruding toward the upper center of the case 28 and inserted into the through hole 12 of the cylinder 20 to protrude outwards, and inserted into the piston case 28 and inserted into the piston case ( The rotary valve 18 through which the same discharge hole 32 penetrates the oil hole 26 penetrated through the 28 and protrudes upward, is inserted into the rod case 30 and protrudes upward, The operation part 24 is a configuration having a feature consisting of a rotating shaft 38 is fixed to the operating link 36 through which the long hole 34 for hinge coupling.

Rotating shaft 38 of the present invention configured as described above is formed with a locking jaw 40 to be coupled to the rotatable structure to the floating bar 120, the upper end is seated cap and the locking jaw 40 is coupled to rotate Rotatable bracket 42 is coupled to the floating bar 120 in a possible structure is characterized in that the configuration is provided.

The operating part 24 of the present invention configured as described above has a switch 22 installed close thereto so that a contact is made according to the operation of the clutch pedal P for gear shifting, and a signal applied from the switch 22. It is operated by a hinge 44 is coupled to the operating link 34 of the upper end of the rotating shaft 38 is configured to have a characteristic consisting of a solenoid to rotate the operating link 36 at a predetermined angle about the rotating shaft 38. .

Referring to the operation of the present invention configured as described above is as follows.

Floating bar 120 which is supported on the upper side of the cap bridge 110 by the air spring 100 is lifted in accordance with the buffer of the air spring 100 and the shock transmitted to the cap from the vehicle body by supporting the cap seated upward Will absorb.

And the rotating shaft 38 of the lifting control unit 20 is fixed to the cap bridge 110 is coupled to the rotatable structure to the lower side of the cap floating bar 120 and the lifting control unit 20 The lifting and lowering of the floating bar 120 is controlled according to the control.

That is, the elevating control unit 20 is coupled to the upper end of the elevating piston (16) coupled in a structure capable of elevating the inside of the cylinder (10) filled with oil (L) to the floating bar 120. The cylinder 10 is fixed to a predetermined position of the cap bridge 110 by the fixing portion 14.

At this time, the lifting piston 16 is inserted into the cylinder 10 filled with the oil (L) is the oil hole 26 for the passage of the oil (L) to the piston case 28 is rotated therein The lifting and lowering of the lifting piston 16 is controlled by opening and closing by the rotary valve 18 to control the passage of the oil L.

That is, the passage of the oil L as the rotary valve 18 through which the same discharge hole 32 as the oil hole 26 penetrated through the piston case 28 rotates inside the piston case 28. The opening and closing of the oil hole 26 is made to control the lifting and lowering of the lifting piston 28.

Meanwhile, the rotary valve 18 rotates the rotary valve 18 as the rotary shaft 38 integrated therein is rotated inside the rod case 30 extending upward of the piston case 28. The rotary valve 18 is rotated according to the rotation of the operation link 36 fixed to the upper end of the rotary shaft 38.

At this time, the actuating link 36 is a linear movement of the solenoid of the actuating portion 24 is operated by the electrical signal applied according to the contact of the switch 22, the end of the long hole 34 of the actuating link 36 Is coupled to the hinge 44 is made in accordance with the operation of the operating unit 24 and the switch 22 for applying an electrical signal to the operating unit 24 is made of contacts according to the operation of the clutch pedal (P) You lose.

On the other hand, it will be described the operating relationship of the present invention as described above.

First, in the state where the operation of the clutch pedal P is not made, as shown in FIG. 5, the operation of the operating unit 24 is returned, and at the same time, the lifting piston 16 for elevating the inside of the cylinder 10. The oil hole 26 is maintained in an open state so that the lifting operation of the lifting control unit 20 according to the lifting and lowering of the cap is easily performed.

At this time, when the clutch pedal (P) is operated to shift the gear, the switch 22 is contacted to apply an electrical signal to the operating unit 24 to rotate the operation link 36 as shown in FIG. The rotary valve 18 in which the rotary shaft 28 is integrated is rotated by a predetermined angle so that the oil hole 28 of the piston case 28 through which the oil L passes and the discharge hole 32 of the rotary valve 18. ) Is spaced apart to limit the passage of the oil (L) and thereby the lifting of the lifting piston 16 is limited, so that the lifting of the floating bar 120 that is lifted from the upper side of the bridge 110 is prevented to prevent the lifting of the cap.

Of course, in this state, when the gear shift is completed and the operation of the clutch pedal P is released, the electrical signal applied to the operation unit 24 is cut off, and the operation unit 24 returns to its original position, so that the piston case As the oil hole 26 of the 28 and the discharge hole 32 of the rotary valve 18 coincide with each other, the elevating piston 16 moves up and down, so that the elevating control unit 20 can be operated.

Providing the flow control device of the cap for the van of the present invention as described above prevents the flow of the cap by the gear shift of the van by preventing the lifting operation by the air supplied with the air spring supporting the cap according to the gear shift of the van. It is possible to provide an advantage that the ride comfort of the van can be improved accordingly.

Claims (4)

Air spring 100 to absorb the shock by supporting the cap bridge 110 and the floating bar 120 for the seating of the cap, and connected thereto to supply air to the air spring 100 to control the height of the cap In order to control the supply of air leveling valve 130 is connected to the air tank 140, the pressure of the air supplied from the air tank 140, the function of the air spring 100 is maintained in an appropriate state In A through hole 12 penetrates through an upper center, a fixing part 14 is formed at a lower side thereof, and a cylinder 10 filled with oil L therein and a rotary valve 18 inserted into the cylinder 10. Lifting control unit 20 consisting of the lifting and lifting piston 16 is limited by the opening and closing, The flow control device of the cab for a van, characterized in that it is operated by an electrical signal applied in accordance with the operation of the switch 22 and comprises an operating part 24 for controlling the opening and closing operation of the lifting piston (16). The method of claim 1, The lifting piston 16 protrudes into the piston case 28 through which the oil hole 26 is penetrated at a predetermined interval and the upper center of the piston case 28 and is inserted into the through hole 12 of the cylinder 20. Rotating valve 18 inserted into the rod case 30 protruding outward and the discharge hole 32 is inserted into the piston case 28 and the same discharge hole 32 as the oil hole 26 penetrated through the piston case 28. And a rotating shaft 38 inserted into the rod case 30 and protruding upward, and having an operating link 36 through which a long hole 34 for hinge coupling is fixed, at an upper end thereof. Flow control device of the cap for the van, characterized in that consisting of. The method of claim 2, The rotating shaft 38 is formed with a locking jaw 40 to be coupled to the rotatable structure to the floating bar 120, the upper end of the cap is seated and the locking jaw 40 is coupled to the rotatable structure Rotation bracket 42 is coupled to the bar 120 is provided, the flow control device of the cap for the van. The method of claim 1, The operation unit 24 is operated by a switch 22 which is installed close to the contact point so that the contact is made according to the operation of the clutch pedal (P) for gear shifting, and a signal applied from the switch 22 and the rotary shaft ( 38) Flow control device of the cab for the van, characterized in that the hinge 44 is coupled to the operating link 36 of the upper end is made of a solenoid to rotate the operating link 36 at a predetermined angle about the rotation axis 38 .

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