KR101231337B1 - Smart Jacking System for Vehicle - Google Patents

Abstract

The present invention does not need to form a separate space for loading, eliminates the risk of safety accidents due to the selection of an inappropriate position for the vehicle body during use, and provides a smart jacking system of the vehicle excellent in the convenience of operation.

Air Spring, Jack

Description

Smart Jacking System for Vehicle

The present invention relates to a jacking device for lifting the wheel of the vehicle to the upper side to be spaced apart from the ground for tire replacement and repair of the vehicle, in particular a jacking system that can be applied to a vehicle equipped with a function that can adjust the garage itself Is about technology.

The vehicle must have a state in which the wheels are spaced upward from the ground in order to replace and repair tires, and therefore, an appropriate jacking device must be provided to enable such replacement and repair work in an emergency.

In the case of small vehicles, a simple structure and a light weight jack mechanism are often carried in the vehicle, and in the case of a large truck, it is necessary to lift a very large load, so the hydraulic jack must be carried.

As described above, the jacking device is a device that is separate from the vehicle body in the case of the jack mechanism of the simple structure as well as the hydraulic jack, so that the user normally positions the jack mechanism or the hydraulic jack between the vehicle body and the ground, and then repeatedly It is designed to lift the vehicle body upwards from the ground through the in-operation operation.

However, in the case of using the jack mechanism or the hydraulic jack as described above, if the proper position of the lower part of the vehicle body or the ground is not selected due to the carelessness or immaturity of the user, there is a high possibility of a safety accident and the repetitive operation is narrow. There is a very uncomfortable problem because it is made in one space.

In addition, there is a problem in that a separate space must be formed so as to carry and carry the hydraulic jack or jack mechanism as described above in the vehicle.

The present invention has been made in order to solve the above problems, it is not necessary to form a separate space for loading, and to eliminate the risk of safety accidents due to the selection of an inappropriate position for the vehicle body during use, The purpose is to provide a smart jacking system of a vehicle with excellent convenience.

Smart jacking system of the present invention vehicle to achieve the object as described above

A height adjustment device provided to adjust a height between the vehicle body and the wheel at one side of the center of gravity of the vehicle body;

A support having an upper end rotatably coupled to the vehicle body and capable of adjusting its length;

Linear guide means for supporting and guiding the upper end of the support so as to be linearly movable in front and rear of the vehicle body between two points in front and rear of the center of gravity of the vehicle body;

And a control unit.

The support is

A support body whose upper end is rotatably supported by the vehicle body through the linear guide means;

A support case surrounding the outer side of the support body and linearly sliding with respect to the support body to change the length of the support together with the support body;

One-way latching means provided between the support case and the support body to allow linear sliding in the direction from which the support body is displaced from the support case and to prevent linear sliding in the opposite direction;

A latch release means provided in the support body to release the one-way latch means so that the linear sliding in both directions between the support case and the support body can be free;

As shown in FIG.

The one-way latch means

A plurality of wedge blocks protruded at regular intervals inwardly along a longitudinal direction of the support case on an inner side of the support case;

A latch protrusion lever elastically protruding outward from the support body to be caught by the wedge block;

A latch spring for elastically supporting the latch protrusion lever toward the wedge block;

As shown in FIG.

The latch release means

A release lever installed to be exposed to the support body to the outside;

A release link for transmitting a change in the rotational state of the release lever to the latch protrusion lever so that the latch protrusion lever rotates to be separated from the wedge block;

As shown in FIG.

The straight guide means

A pivot shaft integrally coupled to an upper end of the support;

A slider hub wrapping the pivot shaft in a rotatable state;

A guide block to which the slider hub provides a guide surface up and down to move linearly in front and rear of the vehicle body;

As shown in FIG.

A fixed spring installed inside the pivot shaft;

A fixed plunger elastically supported by the fixed spring and inserted into the pivot shaft to protrude from the pivot shaft toward the slider hub and the guide block;

A hub slot provided at an upper side and a lower side of the slider hub to allow the fixing plunger to pass therethrough;

A fixing groove formed to insert the fixing plunger protruding through the hub slot into the guide block;

As shown in FIG.

The fixing groove of the guide block

A front side fixing groove provided at the front side of the vehicle body at the center of gravity of the vehicle body and at the center of gravity of the vehicle body;

A rear side fixing groove provided on the rear side of the body rather than the center of gravity of the vehicle body and the center of gravity of the vehicle body;

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The fixing groove of the guide block

And a central fixing groove formed between the front side fixing groove and the rear side fixing groove;

The depth of the center fixing groove is formed such that the fixing plunger does not completely come out of the pivot shaft in the state where the fixing plunger is inserted;

The depth of the front side fixing grooves and the rear side fixing grooves may be formed such that the fixing plunger is completely removed from the pivot shaft and not from the slider hub while the fixing plunger is inserted.

The present invention does not need to form a separate space for loading, eliminates the risk of safety accidents due to the selection of an inappropriate position for the vehicle body during use, and provides a smart jacking system of the vehicle excellent in the convenience of operation.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described.

1 illustrates a vehicle to which the present invention can be applied, and two rear wheels located at the rear of the center of gravity of the vehicle body 1 are connected to the vehicle body 1 by an air spring 3, and thus the air spring ( The height between the vehicle body 1 and the wheels 5 can be adjusted according to the amount of air in 3).

For reference, the center of gravity of the body (1) has a center of gravity at the time of tolerance and a center of gravity at the time of loading, they have the same or somewhat different position of the bar, below, if there is no need to distinguish them in particular, collectively referred to as the center of gravity Only when it is necessary to distinguish between them should be specified as the center of gravity for tolerance and the center of gravity for loading.

In addition, as shown in the figure, the frame is included in the vehicle body 1, which will be collectively referred to as the vehicle body 1.

2, the embodiment of the present invention and the height adjustment device provided to adjust the height between the vehicle body 1 and the wheel (5) at one side of the center of gravity of the vehicle body (1); A support (9) having an upper end rotatably coupled to the vehicle body (1) and capable of adjusting its length; The upper end of the support (9) is configured to include a linear guide means for supporting and guiding the linear movement of the vehicle body (1) between the front and rear of the front and rear of the vehicle body (1).

That is, the height adjustment device is an air spring 3 installed between the two rear wheels and the vehicle body 1, as described with reference to FIG. 1, and the height of the air spring 3 is controlled by a user's operation. You can raise or lower.

As shown in detail in FIG. 3, the support 9 in this embodiment includes: a support body 11 whose upper end is rotatably supported by the vehicle body 1 through the straight guide means; A support case (13) surrounding the outside of the support body (11) and sliding linearly with respect to the support body (11) so that the length of the support (9) together with the support body (11) is changed; The support case 13 is provided between the support case 13 and the support body 11 to allow linear sliding in the direction away from the support body 11 and to prevent straight sliding in the opposite direction. One-way latching means; Including the latch release means provided in the support body 11 to release the one-way latch means, so that the linear sliding in both directions between the support case 13 and the support body 11 is free. It is composed.

Here, the one-way latch means is a plurality of wedge blocks 15 protruding at regular intervals inwardly along the longitudinal direction of the support case 13 on the inner side of the support case 13, the outer side in the support body 11 And a latch projection lever 17 elastically protruded to be caught by the wedge block 15, and a latch spring 19 elastically supporting the latch projection lever 17 toward the wedge block 15. Configured.

In addition, the latch release means transfers the release lever 21 installed to be exposed to the support body 11 and the rotational state of the release lever 21 to the latch protrusion lever 17 so as to release the latch protrusion. The lever 17 is rotated to include a release link 23 to be separated from the wedge block (15).

That is, in the state in which the support 9 is standing vertically, the support body 11 has an upper end fixed to the vehicle body 1, and the support case 13 freely moves downward from the support body 11. The length of the support 9 itself can be increased while moving away, but on the contrary, once the support case 13 is lowered downward from the support body 11, the wedge block 15 and the latch projection lever 17 It is fixed by), it is to be able to release the fixed state only by the release lever 21.

The linear guide means includes a rotation shaft 25 integrally coupled to the upper end of the support (9) as shown in FIG. A slider hub (27) surrounding the pivot shaft (25) in a rotatable state; The slider hub 27 is configured to include a guide block 29 for providing a guide surface up and down to move linearly in the front and rear of the vehicle body (1).

In addition, a fixed spring 31 installed inside the pivot shaft 25; A fixed plunger 33 which is elastically supported by the fixed spring 31 and is inserted into the pivot shaft 25 so as to protrude from the pivot shaft 25 toward the slider hub 27 and the guide block 29; ; A hub slot 35 provided at an upper side and a lower side of the slider hub 27 to allow the fixing plunger 33 to pass therethrough; The guide block 29 is provided with a fixing groove 37 formed to insert the fixing plunger 33 protruding through the hub slot 35.

The fixing groove 37 of the guide block 29 includes a front side fixing groove 39 provided on the front side of the vehicle body 1 rather than the center of gravity of the vehicle body 1 and the center of gravity of the vehicle body 1; A rear side fixing groove 41 provided at the rear side of the vehicle body 1 than the center of gravity at the time of tolerance of the vehicle body 1 and the center of gravity at the time of loading; It is composed of a central fixing groove 43 formed between the front side fixing groove 39 and the rear side fixing groove 41.

Here, the depth of the center fixing groove 43 is formed so that the fixing plunger 33 does not completely exit from the rotation shaft 25 in the state in which the fixing plunger 33 is inserted, the front fixing groove ( 39) and the depth of the rear fixing groove 41 is completely out of the pivot shaft 25 and out of the slider hub 27 in the state where the fixing plunger 33 is inserted. Can not be formed to a depth.

In the state as shown in FIG. 4, the fixed plunger 33 is inserted into the central fixing groove 43, and the rotating shaft 25 and the slider hub 27 are guided by the fixed plunger 33. 29), the linear sliding of the slider hub 27 and the rotation shaft 25 with respect to the guide block 29 is suppressed, and at the same time the pivoting with respect to the slider hub 27 and the guide block 29 Rotation of the shaft 25 is also suppressed.

Therefore, the state as shown in FIG. 4 is preferably used as a method of fixing the support 9 to the vehicle body 1 during normal driving of the vehicle.

On the other hand, as shown in the state of Figure 5, the fixed plunger 33 is out of the central fixing groove 43, the rotating shaft 25 is the guide block 29 together with the slider hub (27). It is possible to linearly slide back and forth with guide.

Of course, the operation to exit the fixing plunger 33 from the central fixing groove 43 may be provided with a handle or the like in the fixing plunger 33 to allow the operator to manually operate.

6 and 7 relates to the operation of the embodiment of the present invention to be described below, and looks at the operation principle in advance.

When the state of FIG. 4 is changed from the state of FIG. 4 to the state of FIG. 5 through the state as shown in FIG. 5, the fixed plunger 33 is inserted into the front side fixing groove 39. 27) A state where rotation is possible is possible. Therefore, the user can rotate the support 9 downward so as to be in the state as shown in FIG.

Of course, when the support 9 is rotated upward from the above state and made into the state shown in FIG. 4 through the state shown in FIG. 6, the support 9 is easily fixed to the vehicle body 1, It can be carried conveniently without obstacles to driving.

The use of the embodiment of the present invention configured as described above will be described with reference to FIGS. 8 and 9.

FIG. 8 illustrates a process of lifting the front wheel 5 upward due to an abnormality in the front wheel 5 of the vehicle body 1 based on the center of gravity of the vehicle body 1.

That is, when the vehicle is running, the support 9 is mounted on the vehicle body 1 in the state as shown in FIG. 4, and in order to lift the front wheel 5 upward, the user lifts the support 9 above. By switching to the state as shown in FIG. 7 in one way, the support 9 is in a vertical direction.

At this time, the rotation shaft of the upper side of the support 9 is fixed to the front fixing groove 39 of the guide block 29 by the fixing plunger 33.

In this state, the user supplies air to the air spring 3 so that the height between the rear wheels 5 and the vehicle body 1 is maximized so as to be in the same state as the upper side of FIG. 8. .

At this time, the rear of the vehicle body 1 is lifted as described above, and the upper part of the support 9 is mounted upward, so that the support case 13 of the support 9 touches the ground by its own weight. In this regard, the support body 11 is relatively moved outward and moved upward, and the movement state is fixed by the wedge block 15 and the latch protrusion lever 17 as described above.

As described above, when the air supplied to the air spring 3 is removed while the entire length of the support 9 is extended, the pivot shaft 25 of the support 9 is smaller than the center of gravity of the vehicle body 1. Since it is located in the front side, as shown in the lower side of Fig. 8, the front side of the vehicle body 1 is lifted upward while the rear side of the vehicle body 1 is inclined downward, and consequently the front of the vehicle body 1 The wheels 5 mounted on the side are spaced apart from the ground to the upper side, so that the tire can be replaced or repaired.

Next, a method of lifting the wheels 5 positioned on the rear side of the vehicle upwards from the ground will be described with reference to FIG. 9.

After the pivot shaft 25 is fixed to the rear fixing groove 41 of the guide block 29 by the fixing plunger 33, the support 9 is vertically lowered similarly to FIG. Rotate

When air is injected into the air spring 3 in the above state, the rear portion of the vehicle body 1 is lifted upward as shown in the upper side of FIG. 9, and the portion where the upper end of the support 9 is fixed is also moved upward. The support (9) cover is maintained in contact with the ground, the support body (11) is moved upward relatively to be fixed by the wedge block (15) and the latch projection lever 17, thereby substantially supporting ( 9) will lengthen the overall length.

When the air of the air spring 3 is extracted in the above state, the pivot shaft 25 is located at the rear of the center of gravity of the vehicle body 1, so that the rear of the vehicle body 1 is lifted as it is. As a result, the wheels 5 on the rear side of the vehicle body 1 are raised to the upper side so that the wheels 5 are spaced apart from the ground as shown in FIG. 9.

Therefore, the user can easily and easily perform tasks such as replacing or repairing the tire with respect to the wheels 5.

Of course, in order to fold the support 9 into the vehicle body 1 in the state shown in FIG. 2 again from the state as shown in FIGS. 8 and 9, air is injected into the air spring 3 as described above to support the support. After removing the load applied to (9), using the release lever 21, the support 9 cover and the support body 11 is inserted into each other to the shortest state, and then the support 9 is upper side The rotating shaft 25 may be fixed by the fixing plunger 33 in the central fixing groove 43 of the guide block 29.

Therefore, the user can perform the necessary work by separating the desired wheel 5 from the ground upwards very simply, conveniently and safely, and there is no need to provide a separate space for storing the hydraulic jack or the like as in the prior art.

1 is a view showing an example of a general vehicle to which the present invention is applied,

2 is a view illustrating a smart jacking system of a vehicle according to the present invention;

3 is a view showing an example of the configuration of the support of FIG.

4 is a view for explaining an example of the linear guide means of the present invention;

5 to 7 are views illustrating a state change of FIG. 4;

8 and 9 illustrate a method of using the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

One; Body 3; Air spring

5; Wheel

9; Support 11; Support body

13; Support case 15; Wedge block

17; Latching lever 19; Latch Spring

21; Release lever 23; Release link

25; Pivot shaft 27; Slider Hub

29; Guide block 31; Fixed spring

33; Fixed plunger 35; Hub Slot

37; Fixing groove 39; Front side fixing groove

41; Rear locking groove 43; Center fixed groove

Claims (8)

A height adjustment device provided to adjust a height between the vehicle body and the wheel at one side of the center of gravity of the vehicle body; A support having an upper end rotatably coupled to the vehicle body and capable of adjusting its length; Linear guide means for supporting and guiding the upper end of the support so as to be linearly movable in front and rear of the vehicle body between two points in front and rear of the center of gravity of the vehicle body; Smart jacking system of a vehicle, characterized in that configured to include. The method of claim 1, wherein the support A support body whose upper end is rotatably supported by the vehicle body through the linear guide means; A support case surrounding the outer side of the support body and linearly sliding with respect to the support body to change the length of the support together with the support body; One-way latching means provided between the support case and the support body to allow linear sliding in the direction from which the support body is displaced from the support case and to prevent linear sliding in the opposite direction; A latch release means provided in the support body to release the one-way latch means so that the linear sliding in both directions between the support case and the support body is free; Smart jacking system of a vehicle, characterized in that configured to include. The method of claim 2, wherein the one-way latch means A plurality of wedge blocks protruded at regular intervals inwardly along a longitudinal direction of the support case on an inner side of the support case; A latch protrusion lever elastically protruding outward from the support body to be caught by the wedge block; A latch spring for elastically supporting the latch protrusion lever toward the wedge block; Smart jacking system of a vehicle, characterized in that configured to include. The method of claim 3, wherein the latch release means A release lever installed to be exposed to the support body to the outside; A release link for transmitting a change in the rotational state of the release lever to the latch protrusion lever so that the latch protrusion lever rotates to be separated from the wedge block; Smart jacking system of a vehicle, characterized in that configured to include. The method of claim 1, wherein the linear guide means A pivot shaft integrally coupled to an upper end of the support; A slider hub wrapping the pivot shaft in a rotatable state; A guide block to which the slider hub provides a guide surface up and down to move linearly in front and rear of the vehicle body; Smart jacking system of a vehicle, characterized in that configured to include. The method of claim 5, A fixed spring installed inside the pivot shaft; A fixed plunger elastically supported by the fixed spring and inserted into the pivot shaft to protrude from the pivot shaft toward the slider hub and the guide block; A hub slot provided at an upper side and a lower side of the slider hub to allow the fixing plunger to pass therethrough; A fixing groove formed to insert the fixing plunger protruding through the hub slot into the guide block; Smart jacking system of a vehicle, characterized in that further comprises a. The method of claim 6, wherein the fixing groove of the guide block A front side fixing groove provided at the front side of the vehicle body at the center of gravity of the vehicle body and at the center of gravity of the vehicle body; A rear side fixing groove provided on the rear side of the body rather than the center of gravity of the vehicle body and the center of gravity of the vehicle body; Smart jacking system of a vehicle comprising a. The method of claim 7, wherein the fixing groove of the guide block And a central fixing groove formed between the front side fixing groove and the rear side fixing groove; The depth of the center fixing groove is formed such that the fixing plunger does not completely come out of the pivot shaft in the state where the fixing plunger is inserted; The depth of the front fixing groove and the rear fixing groove is formed to a depth that the fixed plunger completely exits the pivot shaft and does not exit the slider hub when the fixed plunger is inserted. Smart jacking system of a vehicle, characterized in that.

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