WO2019093550A1

WO2019093550A1 - Non-contact electric step device

Info

Publication number: WO2019093550A1
Application number: PCT/KR2017/012735
Authority: WO
Inventors: 김기현; 신후상
Original assignee: 황성공업 주식회사
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2019-05-16

Abstract

The present invention relates to a non-contact electric step device capable of assisting a passenger when he or she gets on and off a small-and-medium-sized bus, the non-contact electric step device comprising: a non-contact sensor which determines whether an obstacle exists through the change in the capacitance value of a sensor according to the approach of an object, the sensor having the form of a covered wire or a metal mesh; an electric step which is mounted in the lower portion of a door, and is driven such that when the door opens, passengers can step thereon to get on the bus, wherein the non-contact sensor is mounted on the outer side of the electric step; and an open-and-close control unit which controls the drive of the electric step in response to the open-and-close operation of the door, and controls the drive of the electric step to stop in the case where it is notified from the non-contact sensor that there is an obstacle in the foreground during the drive of the electric step.

Description

Non-contact electric stepping device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact type electric stepping device, and more particularly, to a non-contact type stepping device capable of assisting a passenger in getting on and off a small-sized bus.

Generally, there is no problem at the time of getting on and off the passenger because the ground level is low in case of a passenger car. However, in the case of a vehicle having a relatively high ground clearance such as a van, small / medium bus or an ATV, And there are risks to various safety accidents.

Accordingly, a vehicle having a high ground clearance such as a small-sized bus is provided with steps extending along the vehicle body at a mid-height position between the side seal and the road surface. Recently, many electric steps for appearance, convenience, Trend.

(Patent Document 1) Korean Patent Publication No. 10-2016-0051291

(Patent Document 2) Korean Patent Publication No. 10-2015-0070520

One aspect of the present invention provides a non-contact type electrically operated step device having a non-contact sensor capable of detecting an obstacle without contacting an obstacle so as to stop the driving of the motorized step before an impact is applied to the obstacle during driving of the motorized step .

The technical problem of the present invention is not limited to the technical problems mentioned above, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

The non-contact type electrically operated step device according to an embodiment of the present invention includes a contactless sensor for determining the presence or absence of an obstacle through a change amount of a capacitance value of a sensor formed in the form of a covered wire or a metal mesh according to approach of an object; An electric step mounted on a lower portion of a door and mounted on the outside of the non-contact sensor and driven so that a passenger can step on the seat when the door is opened; And an opening / closing control section for controlling driving of the electric step corresponding to opening and closing operations of the door, and stopping driving of the electric step when it is notified that an obstacle exists in front of the noncontact sensor at the time of driving the electric step do.

In one embodiment, the electric step includes a step body mounted on the outside of the non-contact sensor and driven to slide out so that the passenger can step on the seat when the door is opened; And a main body case mounted on a lower portion of the door and accommodating the step body in an inner space and driving the step body to slide out by the control of the opening and closing control unit when the door is opened.

In one embodiment, the step body is accommodated in an inner space of the body case, and is driven to slide out from the body case to allow the passenger to step on and ride on the foot body; And a coupling groove portion formed in a width direction on an outer side of the step portion so that the non-contact sensor can be mounted.

In one embodiment, the non-contact sensor includes a strip electrode formed in a coated wire or a metal mesh shape, the strip electrode varying in capacitance value according to an approach of an object and generating a corresponding variable signal; A control module mounted on a lower portion of the step body and connected to the strip electrodes to determine presence or absence of an obstacle using a variable signal transmitted from the strip electrodes; And a strip body mounted on the fastening groove to mount the strip electrode in a longitudinal space formed at an upper portion of the fastening groove depending on the shape of the strip electrode.

In one embodiment, the strip body comprises: a body body portion; A fastening protrusion formed on a lower portion of the body main body and inserted into the fastening groove; A storage space formed in the body body in a longitudinal direction and formed as an arcuate space for inserting and storing the strip electrodes in the longitudinal direction; A fastening clip portion for fastening the strip electrode to the storage space portion in a different fastening form according to the shape of the strip electrode; And two lid portions which are inserted and fastened to both sides of the step portion while covering an open space on both sides of the body main body portion.

In one embodiment, the locking clip comprises: a curved blade formed in a curved shape; And a support wing extending from the other side of the curved wing in a direction perpendicular to the lower side to support the strip electrodes.

In one embodiment, the fastening clip portion may further include an elastic portion inserted in a space between the curved blade and the support blade to press the support blade in the direction of the strip electrode.

In one embodiment, the resilient portion includes two support bars inserted into a space between the curved wing and the support wing and formed to face each other at predetermined intervals; And an elastic body mounted between the supporting bars to form an elastic force between the supporting bars.

In one embodiment, the fastening clip portion comprises: a flat bar formed to be flat; And two support vanes extending from both sides of the planar bar in a downward direction corresponding to the arch shapes on both sides of the storage space part to lift up the planar bar.

In one embodiment, the fastening clip portion includes an arcuate bar formed corresponding to the arch shape of the storage space portion; And an electrode insertion groove longitudinally formed on the upper portion of the arcuate bar for inserting the strip electrode in the longitudinal direction of the storage space portion.

In one embodiment, the electronic control unit may further include a warning sound output unit for outputting a warning sound when an obstacle is present in front of the driving step.

According to an aspect of the present invention, it is possible to effectively prevent a safety accident in which a child or a senior citizen who has poor cognitive ability is struck by an electric step and wears a bruise, etc., by stopping the driving before the electric step hits the obstacle.

1 is a diagram showing a schematic configuration of a non-contact type electric stepping device according to an embodiment of the present invention.

2 is a diagram for explaining an application example of the present invention.

Fig. 3 is a view for explaining the step body shown in Fig. 1. Fig.

Fig. 4 is a view for explaining the noncontact sensor shown in Fig. 1. Fig.

FIGS. 5 and 6 are views for explaining the strip body shown in FIG.

Fig. 7 is a view for explaining the fastening clip portion shown in Fig. 5;

Fig. 8 is a view for explaining another embodiment of the fastening clip portion in Fig. 5;

9 is a view for explaining another embodiment of the fastening clip portion in Fig.

100: Non-contact sensor

110: strip electrode

120: Control module

130: strip body

131:

132: fastening protrusion

133: Storage space part

134: fastening clip portion

1341: Curved wing

1342: Supporting wing

1343:

13431: support bar

13432: elastomer

1344: Flat bar

1345: Supporting wing

1346: Arched Bar

1347: electrode insertion groove

135:

200: Electric step

210:

211:

212: fastening groove

220: Body case

300: opening /

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

Specifically, the non-contact type electric step device according to the embodiment of the present invention includes the non-contact sensor 100, the electric step 200, and the opening /

The non-contact sensor 100 determines presence or absence of an obstacle through a change amount of a capacitance value of a sensor formed in the form of a covered wire or a metal mesh according to approach of an object, and then notifies the opening /

The electric step (200) is mounted on the lower part of the door, the non-contact sensor (100) is mounted on the outer side, and in response to the control of the opening / closing control part (300) do.

In one embodiment, the electric step (200) may include a step body (210) and a body case (220).

The step body 210 is provided with a non-contact sensor 100 on its outer side and is normally housed in the body case 220. When the door is opened, To be slid-out.

The main body case 220 normally houses the step body 210 in the inner space and drives the step body 210 to slide out by the control of the opening / closing control unit 300 when the door is opened.

The opening and closing control unit 300 controls the driving of the electric step 200 in response to the opening and closing operation of the door and when the electric step 200 is notified that the obstacle exists ahead of the non- (200) is stopped.

The non-contact type power step apparatus having the above-described configuration may further include a warning sound output unit (not shown in the drawing for convenience of explanation).

The alarm sound output unit outputs a warning sound when there is an obstacle ahead of the driver in driving the electric step 200, thereby ventilating the passengers that the step body 210 is sliding out.

2 is a diagram for explaining an application example of the present invention.

Referring to FIG. 2, in the non-contact type electrically operated step device having the above-described configuration, in the case of a conventional electric step in which a contact type sensor such as a piezoelectric sensor is borrowed as shown in FIG. 2A, It has a disadvantage in that if it is driven by a method of confirming that there is an obstacle and the cognitive ability such as a child or an elderly person is low, the person may be hit by the step and be caught or fall over. However, when a non-contact type sensor such as the present invention is applied as shown in FIG. 2B, even if there is no contact with an obstacle, the presence of an obstacle is confirmed and driving of the electric step is stopped, thereby abrasion or hanging due to contact with the step .

Fig. 3 is a view for explaining the step body shown in Fig. 1. Fig.

Referring to FIG. 3, the step body 210 includes a step portion 211 and a fastening groove portion 212.

The step portion 211 is housed in the inner space of the main body case 220 and is driven to slide out from the main body case 220 so that the passenger stepped on the foot.

The fastening groove 212 is formed on the outside of the step portion 211 in the width direction so that the noncontact sensor 100 (i.e., the fastening protrusion 132 in Fig. 5A) can be mounted.

Fig. 4 is a view for explaining the noncontact sensor shown in Fig. 1. Fig.

4, the non-contact sensor 100 includes a strip electrode 110, a control module 120, and a strip body 130.

The strip electrode 110 is formed in the form of a coated wire or a metal mesh. The capacitance value changes according to the approach of the object, and a corresponding variable signal is generated and transmitted to the control module 120.

In one embodiment, the strip electrode 110 may be formed in the same shape as a general coated wire (as shown in FIG. 7 or 9) as shown in FIGS. 7 to 9, Such as a metal mesh in which a metal yarn is braided like the strip electrode 100 and may be embedded in the longitudinal direction in the inner space of the strip body 130. [

The control module 120 is mounted on a lower portion of the step body 210 and is connected to the strip electrode 110 to determine whether an obstacle exists by using a variable signal transmitted from the strip electrode 110.

The strip body 130 is mounted on a coupling groove 212 formed on the outside of the step body 210. The strip electrode 110 is formed in a space in the longitudinal direction Mounted.

FIGS. 5 and 6 are views for explaining the strip body shown in FIG.

5 and 6, the strip body 130 includes a body body 131, a fastening protrusion 132, a storage space 133, a fastening clip 134, and two lids 135, .

The body body portion 131 is formed with a storage space portion 133 formed at an upper portion thereof as an arcuate space and a fastening protrusion portion 132 formed at a lower portion thereof. And is installed outside the main body 210.

The body portion 131 is driven by the motorized step 200 even when there is a passenger in front of the motorized step 200 due to a malfunction of the strip electrode 110 or the control module 120 It is preferable that the step body 210 of the electric step 200 is formed of a soft material (for example, urethane rubber or the like) that can mitigate the impact at the time of hitting to prevent the passenger from hitting the passenger.

The fastening protrusion 132 is formed at a lower portion of the body main body 131 and is inserted into the fastening recess 212 formed outside the step body 210 of the electric step 200.

5A, the coupling protrusions 132 are formed in the shape of two outwardly curved blades. However, the shape of the coupling protrusions 132 is not limited to the shape of the coupling groove 212 formed on the outer side of the step body 210 The shape of the fastening groove 212 formed on the outer side of the step body 210 may be changed correspondingly to the shape of the fastening groove 212 according to the present embodiment.

6, the storage space part 133 is formed as an arcuate space which is formed in the body body part 131 in the longitudinal direction and inserts the strip electrode 110 in the longitudinal direction.

6, the shape of the storage space portion 133 may be formed in a shape of an upper portion of the body main body 131 And it is not limited to the arcuate shape in which the strip electrode 110 is provided.

The fastening clip portion 134 is installed in the internal space of the storage space portion 133 and fastens the strip electrode 110 to the storage space portion 133 with a different fastening form according to the shape of the strip electrode 110 do.

As described above, the strip electrode 110 can be formed in the same shape as a general coated wire (as shown in FIG. 7 or FIG. 9) as described above, May be formed of a braided metal mesh or the like. Accordingly, the fastening clip portion 134 can efficiently fasten the strip electrode 110 by forming the structure differently according to the shape of the strip electrode 110 as described later.

The lid portion 135 is inserted into both sides of the step portion 211 of the step body 210 so as to cover the open space on both sides of the body body portion 131 as shown in FIG. So that it is stably fastened to the step body 210.

Fig. 7 is a view for explaining the fastening clip portion shown in Fig. 5;

Referring to FIG. 7, the fastening clip portion 134 includes a curved blade 1341 and a support blade 1342.

The curved vanes 1341 are formed in a curved shape corresponding to the arch shape of the storage space portion 133 and the support vanes 1342 extend on the other side in the direction perpendicular to the lower side.

The support wing 1342 extends from the other side of the curved wing 1341 in the direction perpendicular to the bottom to support the strip electrode 110.

The fastening clip portion 134 having the above-described structure may further include an elastic portion 1343. [

The elastic portion 1343 is inserted into the space between the curved wing 1341 and the support wing 1342 to press the support wing 1342 in the direction of the strip electrode 110.

In one embodiment, the elastic portion 1343 may include two support bars 13431 and an elastic body 13432.

The support bar 13431 is inserted into the space between the curved vanes 1341 and the support vanes 1342 and formed to face each other at predetermined intervals and to maintain the gap by the elastic body 13432 formed therebetween Thereby forming an elastic force.

At this time, the interval between the support bars 13431 is formed corresponding to the space between the curved vanes 1341 into which the elastic portion 1343 is inserted and the support vanes 1342.

The elastic body 13432 is mounted between the support bars 13431 so as to form an elastic force between the support bars 13431.

In one embodiment, the elastic body 13432 is preferably formed of elastic means (e. G., Spring or rubber, etc.) for generating an elastic force.

The fastening clip portion 134 having the above-described structure positions the strip electrode 110 at the intermediate portion using the self-elastic force of the support blade 1342 formed in the direction of the strip electrode 110, And the strip electrode 110 may be inserted into the intermediate empty space and then supported by the support wing 1342 so as not to move.

8 is a view for explaining another embodiment of the fastening clip portion in Fig.

Referring to Fig. 8, the fastening clip portion 134 includes a planar bar 1344 and two support vanes 1345.

The flat bar 1344 is formed flat, and support vanes 1345 extend downward on both sides thereof.

Referring to FIG. 8, according to the present embodiment, it can be seen that a flat storage space is formed between the flat bar 1344 and the storage space 133.

Accordingly, the flat bar 1344 is provided between the upper space of the storage space portion 133 formed in an arch shape as shown in Fig. 8 for storing the above-described metal electrode strip electrode 110 Space can be formed.

In other words, in the case of the embodiment according to FIG. 7 or 9, it is possible to form the space (in case of FIG. 5) or the space (in case of FIG. 9) In contrast to this, in the case of this embodiment, the strip-shaped noncontact sensor can be formed by using the embodiment having a shape corresponding to the shape of the strip electrode 110, .

The support vanes 1345 extend from both sides of the planar bar 1344 in a downward direction corresponding to the bilateral arch shape of the storage space portion 133 to lift up the flat bar 1344, respectively.

Referring to FIG. 8, it can be seen that the flat bar 1344 forms a space of a certain size in the upper part as well as the lower part. In the space formed above, the strip electrode 110 is accommodated as described above, The flat bar 1344 moves in a downward direction and the tightening of the strip electrode 110 housed in the upper space is loosened to cause an error in the obstacle sensing And the like may occur.

Accordingly, in the present embodiment, it is possible to prevent the elastic portion 1343 from sagging in the downward direction by inserting the elastic portion 1343, which will be described later, into the space formed in the lower portion of the flat bar 1344. At this time, the elastic portion 1343 can have the same structure as the elastic portion 1343 shown in Fig.

The resilient portion 1343 is inserted into the lower space of the planar bar 1344 to support the planar bar 1344.

However, unlike the embodiment of FIG. 7, the elastic portion 1343 according to the present embodiment preferably has a gap between the support bars 13431 corresponding to the lower space of the flat bar 1344 inserted therein.

As described above, the fastening clip portion 134 having the above-described structure can be mounted and installed by inserting the strip electrode 110 into the space formed between the flat bar 1344 and the upper portion of the storage space portion 133 have.

Referring to FIG. 9, the fastening clip portion 134 includes an arcuate bar 1346 and an electrode insertion groove 1347.

The arcuate bar 1346 is formed in an arch shape corresponding to the arch shape of the storage space portion 133 and has an electrode insertion groove 1347 for inserting the strip electrode 110 thereon. At this time, the strip electrode 110 is formed in a general wire shape stacked by covering as shown in FIG.

The electrode insertion groove 1347 is formed in a semicircular or circular shape in cross section and formed in the longitudinal direction on the upper portion of the arcuate bar 1346 for inserting the strip electrode 110 in the longitudinal direction of the storage space portion 133.

9, the arcuate bar 1346 forms a space in the lower part in addition to the space formed by the electrode insertion groove 1347 in the upper part. In the space formed at the upper part, the strip electrode 110, But the space formed in the lower portion is not used for separate housings. When the rod is left to stand for a long time, the arched bar 1346 moves downward to loosen the fastening of the strip electrode 110 housed in the upper space An error may occur in the obstacle sensing, and the like.

Accordingly, in this embodiment, by inserting the elastic portion 1343, which will be described later, into the space formed in the lower portion of the arcuate bar 1346, it is possible to prevent the elastic portion 1343 from sagging in the downward direction in advance. At this time, the elastic portion 1343 can have the same structure as the elastic portion 1343 shown in Fig. 7 or Fig.

The resilient portion 1343 is inserted into the lower space of the arcuate bar 1346 to support the arcuate bar 1346.

The fastening clip portion 134 having the above-described structure can be mounted by inserting the strip electrode 110 into the space formed in the electrode insertion groove 1347.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. You will understand.

According to the present invention, there is provided a contactless sensor capable of detecting an obstacle even when it is not in contact with an obstacle so that a non-contact type electric step device capable of stopping the driving of the motorized step can be manufactured .

Therefore, according to the present invention, it is possible to effectively prevent a safety accident in which a child or a senior citizen who has a low cognitive ability by striking an obstacle by hitting an electric step strikes an electric step and wears a bruise or the like effectively.

Further, it is possible to manufacture a strip-type noncontact sensor which is mounted on an electric step without depending on the shape of a strip electrode for detecting an obstacle.

Claims

A noncontact sensor for determining the presence or absence of an obstacle through a change amount of a capacitance value of a sensor formed of a covered wire or a metal mesh according to approach of an object;

An electric step mounted on a lower portion of a door and mounted on the outside of the non-contact sensor and driven so that a passenger can step on the seat when the door is opened; And

And an opening / closing control section for controlling driving of the electric step in response to opening / closing operation of the door, and stopping driving of the electric step when it is notified that an obstacle exists in front of the non-contact sensor at the time of driving the electric step Non-contact electric stepping device.
The electric power steering apparatus according to claim 1,

And a step body which is driven to slide out so that a passenger can step on the seat when the door is opened; And

And a main body case mounted on a lower portion of the door and accommodating the step body in an inner space and driving the step body to slide out by the control of the opening and closing control unit when the door is opened. Electric stepping device.
The step body according to claim 2,

A step portion accommodated in an inner space of the main body case and driven so as to slide out from the main body case so as to allow the passenger to step on his / And

And a coupling groove portion formed on an outer side of the step portion in a width direction so as to mount and attach the non-contact sensor.
The noncontact sensor according to claim 3,

A strip electrode formed in a coated wire or a metal mesh shape, the strip electrode varying in capacitance value according to an approach of an object and generating a variable signal corresponding thereto;

A control module mounted on a lower portion of the step body and connected to the strip electrodes to determine presence or absence of an obstacle using a variable signal transmitted from the strip electrodes; And

And a strip body mounted on the fastening groove to mount the strip electrode in a longitudinal space formed on the upper surface of the strip body in a different fastening manner depending on the shape of the strip electrode.
[5] The apparatus of claim 4,

A body body portion;

A fastening protrusion formed on a lower portion of the body main body and inserted into the fastening groove;

A storage space formed in the body body in a longitudinal direction and formed as an arcuate space for inserting and storing the strip electrodes in the longitudinal direction;

A fastening clip portion for fastening the strip electrode to the storage space portion in a different fastening form according to the shape of the strip electrode; And

And two lid portions which are inserted and fastened to both sides of the step portion while covering an open space on both sides of the body main body portion.
6. The connector according to claim 5,

A curved blade formed in a curved shape; And

And a support blade extending from the other side of the curved blade in a direction perpendicular to the lower side to support the strip electrode.
7. The connector according to claim 6,

Further comprising an elastic portion inserted in a space between the curved blade and the support blade to press the support blade in the direction of the strip electrode.
8. The connector according to claim 7,

Two support bars inserted into the space between the curved wings and the support vanes and formed opposite to each other at predetermined intervals; And

And an elastic body mounted between the support bars to form an elastic force between the support bars.
6. The connector according to claim 5,

A planar bar formed flat; And

And two support vanes extending from both sides of the planar bar in a downward direction corresponding to the shape of both sides of the storage space part to lift up the planar bar.
6. The connector according to claim 5,

An arched bar formed corresponding to the arch shape of the storage space portion; And

And an electrode insertion groove formed in an upper portion of the arcuate bar in the longitudinal direction to insert the strip electrode in the longitudinal direction of the storage space part.
The method according to claim 1,

Further comprising a warning sound output unit for outputting a warning sound when an obstacle is present in front of the motor when the electric step is driven.