KR101894416B1 - Non-slip Scaffold - Google Patents

Abstract

One embodiment of the present invention provides a non-slip scaffold. The non-slip scaffold according to one embodiment of the present invention comprises: a plate-shaped main body portion having an upper surface opened and an indented portion formed to the inside thereof; a scaffold portion inserted into the indented portion so as to be slidable in a vertical direction and having a plurality of through holes vertically penetrating an upper surface and a lower surface thereof; a protruding portion disposed in the lower portion of the scaffold portion and provided so as to be movable in a vertical direction along the through hole; a sensor portion installed on the main body portion or the scaffold portion for detecting water droplets falling on the surface; and a driving portion for moving at least one of the scaffold portion and the protruding portion to project the protruding portion to the outside of the through hole when the sensor portion senses the water droplet.

Description

{Non-slip Scaffold}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a slip prevention footrest, more particularly, to a slip prevention footrest which can be used for a long period of time and which can effectively prevent slipping even in rainy weather.

In general, a stairway is a stepped path connecting two different floor planes of different heights, and is made up of a plurality of step floor scaffolds. The footstep is usually provided with a non-slip structure to prevent slippage of the user during traffic. Conventionally, a non-slip member made of a metal having irregularities in the longitudinal direction is buried in the top edge of the foot, or a non-slip member in the form of a thin sheet having a friction layer formed on its surface is bonded to prevent sliding.

However, when the non-slip member made of metal is embedded in the footstep, it is difficult to separate the non-slip member from the footstep so that it is difficult to perform the repair work even if the uneven wear progresses at a portion having a large amount of traffic. In addition, when the non-slip member in the form of a sheet is adhered to the step foot, the friction layer or the sheet easily peels off due to the frictional force applied when the foot is struck, thereby causing a partial peeling phenomenon or tearing problem. There is a problem that replacement is required. Particularly, the conventional non-slip member is not provided with a structure that operates in response to rain, and thus slipping can not be effectively prevented.

Therefore, a footrest which can be used for a long period of time and which can effectively prevent slippage even in the case of rainy days is needed.

Korean Patent No. 10-0890923 (March 23, 2009)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a slip prevention footrest which can be used for a long period of time and which can effectively prevent slippage even in rainy weather.

The technical objects of the present invention are not limited to the technical matters mentioned above, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a slip prevention footrest comprising: a plate-shaped main body having an upper surface opened and a recessed portion recessed inward; A pedestal portion provided with a plurality of through holes vertically penetrating the upper surface and the lower surface; a protrusion disposed under the pedal portion and installed to be movable in a vertical direction along the through hole; And a driving part for moving the foot part to project the protrusion to the outside of the through hole when the sensor part senses the water droplet.

The slip prevention footrest includes a first cylinder that is installed under the footrest and supports the footrest, and a second cylinder that is installed under the protrusion and supports the protrusions, And a second cylinder which is connected to the first cylinder.

Wherein the slip prevention footrest is provided on at least one of the first cylinder and the second cylinder so as to prevent the protruding portion from protruding from the footrest portion in an initial state in which no pressure is applied to the footrest portion and the protruding portion, And an elastic member for applying pressure to the projection or the projection.

The driving unit may release the driving force so that the footrest and the protrusion move freely when the sensor unit does not sense water drops.

The anti-slip footrest may further include a watertight member sealing the space between the main body and the footrest.

The protruding portion may have a cone-shaped end portion.

According to the present invention, since the protruding portion that forms the concavo-convex portion in the foot portion is inserted into the through hole and protrudes only when the user passes or rains, it is possible to effectively prevent the slip. Particularly, during normal operation, the projections are not exposed to the outside of the through-holes, so that the wear of the projections can be minimized and the abrasion of the projections can be minimized.

1 is a perspective view showing a step to which a non-skid floor is applied according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the anti-slip footrest of FIG. 1 taken along line AA '.
3 to 5 are operation diagrams for explaining the operation of the anti-slip footrest.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the anti-slip footrest according to the embodiment of the present invention will be described in detail with reference to Figs. 1 to 5. Fig.

1 is a perspective view showing a step to which a non-skid floor is applied according to an embodiment of the present invention.

The anti-slip footrest 1 according to the embodiment of the present invention is for preventing slippage in the passage of the user, and can be applied to the footstep for forming the step S. When the anti-slip footrest 1 is applied to the step foot that forms the step S, it can be interposed between the pair of handrails G so that both sides can be joined to the handrail G, respectively. However, the present invention is not limited to the case where the anti-slip footrest 1 is applied to the footstep for forming the step, but may be applied to, for example, a footstep disposed on the front end.

2) is inserted into the through hole (see 20a in Fig. 2) protruding only on the pass or rainy of the user, so that the slip prevention foot 1 effectively slides Can be prevented. Particularly, in the normal state, the projection 30 is not exposed to the outside of the through hole 20a, so that the wear of the projection 30 can be minimized and the wear of the projection 30 can be minimized.

Hereinafter, the anti-slip footrest 1 will be described in detail with reference to Fig.

Fig. 2 is a cross-sectional view of the anti-slip footrest of Fig. 1 cut along line A-A '. Fig.

The anti-slip footrest 1 according to the present invention includes a main body 10, a footrest 20, a projection 30, a sensor unit 40, and a driving unit 50.

The main body 10 is a plate-shaped member having a predetermined thickness and may be formed with an indentation 10a having an open top and recessed inward. Although the main body 10 is shown as being formed of a rectangular plate, it is not limited thereto, and the shape of the main body 10 may be variously modified. For example, the main body 10 may be formed of a square plate material or a circular plate material. The pedestal portion 20 is inserted into the indented portion 10a.

The footrest 20 is a plate-like member having a thickness thinner than that of the main body 10 and can be inserted into the indent 10a so as to be slidable in the vertical direction. In other words, the footrest 20 is inserted into the indentation 10a and is slidably coupled to the body 10 so as to be slidable in the vertical direction along the inner surface of the indent 10a. For example, the footrest 20 slides upward so that the upper surface of the footrest 20 is located on the same plane as the upper surface of the main body 10, or is slid downward so that the upper surface of the footrest 20 is in contact with the upper surface of the main body 10 Can be achieved.

A rack gear is formed on an outer surface of the footrest 20 and a pinion gear is formed on the body 10 so that the footrest 20 is inserted into the recess 10a The present invention is not limited thereto. For example, a pinion gear may be formed on the foot plate 20, a rack gear may be formed on the body 10, 20 may slide and move. In addition, the present invention is not limited to the sliding movement of the foot plate 20 by the rack gear and the pinion gear structure. The foot plate 20 can be slid vertically along the inner side of the recessed portion 10a And can be variously modified.

The footrest 20 may have a plurality of through holes 20a vertically penetrating the top and bottom surfaces thereof. The through hole 20a is a passage through which the protruding portion 30 is protruded as described later, and a plurality of the through holes 20a are formed on the entire surface of the footrest 20, And the other side. A protruding portion 30 is disposed under the footrest portion 20. As shown in FIG.

The protrusion 30 may be a bar-shaped member having a cone-shaped end portion, and may be installed to be movable in the vertical direction along the through hole 20a. In other words, the protrusion 30 may move in the vertical direction from the bottom of the foot plate 20 and protrude outside the through hole 20a or may be inserted into the through hole 20a. The protrusion 30 moves in the vertical direction along the through hole 20a and protrudes out of the through hole 20a so that the foot plate 20 is formed with protrusions and protrusions so as to prevent slippage during passage of the user. In particular, since the end of the projection 30 protruding from the through hole 20a is formed in a cone-like shape, the effect of preventing slipping can be maximized. In addition, since the protrusion 30 moves along the through hole 20a and is inserted into the through hole 20a, it is possible to minimize the wear of the end of the protrusion 30 having a sharp cone shape, and the protrusion 30 ) Can be used for a long period of time without repairing or replacing. The protrusions 30 are formed corresponding to the number of the through holes 20a and the protrusions 30 are connected to each other to move collectively and protrude out of the respective through holes 20a, ). ≪ / RTI >

The sensor unit 40 may be installed on the main body 10 or the footrest 20. The sensor unit 40 senses water droplets that have fallen on the surface of the body 10 or the foot plate 20 and can be formed of a normal rain sensor. For example, the sensor unit 40 can detect water droplets using at least one of an electric resistance method and a piezoelectric method. The electrical resistance method is a method of measuring the electrical resistance between electrodes provided on the insulated substrate by measuring the electrical resistance between them. When the water drops are dropped between two electrodes, the electrical resistance is drastically reduced. have. In the piezoelectric body method, a voltage pulse of a piezoelectric body is measured. When a water droplet falls on a piezoelectric body, a voltage pulse is generated in the piezoelectric body by the impact, so that water droplets can be detected through the voltage pulse. However, the present invention is not limited to sensing the water droplet by the sensor unit 40 in at least one of the electric resistance type and the piezoelectric type. The water droplet can be detected on the surface of the body unit 10 or the foot unit 20 Can be modified in various ways. Hereinafter, the structure will be described in more detail with the structure in which the sensor section 40 is provided on the foot plate section 20. The sensor unit 40 is embedded in the insertion groove 20b formed in the upper surface of the foot plate 20, and a plurality of the sensor units 40 may be spaced apart as needed. When the sensor unit 40 senses water droplets, the driving unit 50 operates.

The driving unit 50 moves the foot plate 20 to project the protrusion 30 out of the through hole 20a and can operate when water droplets are sensed by the sensor unit 40. [ In other words, when the sensor unit 40 does not sense water droplets, the driving unit 50 releases the driving force so that the footrest unit 20 and the protruding unit 30 move freely. The protrusion 30 protrudes when water is poured into the main body 10 or the footrest 20 when the driver 50 senses water droplets in the sensor unit 40 so that the footrest 20 Can be prevented from being slipped by the user. When the water droplet is not detected by the sensor unit 40, the driving unit 50 releases the driving force so that the foot unit 20 and the protrusion unit 30 can freely move in the vertical direction, The protruding portion 30 protrudes relatively to prevent slipping. The driving unit 50 provides a driving force to the pinion gear, and the pinion gear receives the driving force from the driving unit 50 and engages with the rack gear to slide the footrest 20.

At least one first cylinder 60 may be installed vertically below the pedal 20 and at least one second cylinder 70 may be installed vertically below the pedal 30.

The first cylinder 60 supports the footrest portion 20 and can be disposed on both sides of the footrest portion 20 to balance the footrest portion 20. However, the first cylinder 60 is not limited to being disposed at both the lower sides of the foot part 20, for example, the first cylinder 60 may be disposed at the lower center of the foot part 20 It is possible. The first piston 21 slides inside the first cylinder 60 and the first piston 21 is formed separately from the foot plate 20 under the foot plate 20 or integrally formed with the foot plate 20 As shown in FIG.

The second cylinder 70 supports the protrusion 30 and is disposed at the center of the protrusion 30 so as to maintain the balance of the protrusion 30. [ However, the second cylinder 70 is not limited to being disposed at the lower center of the protrusion 30, and for example, the second cylinder 70 may be disposed below the protrusion 30, . The second piston 31 slides inside the second cylinder 70 and the second piston 31 is formed separately from the protrusion 30 or integrally with the protrusion 30 under the protrusion 30 . Since the second cylinder 70 communicates with the first cylinder 60 on one side, the second cylinder 70 can operate in cooperation with the first cylinder 60 in a pressure balanced manner. For example, if the first piston 21 is gradually received into the first cylinder 60 as the footrest 20 is lowered, the fluid in the first cylinder 60 flows into the second cylinder 70 So that the second piston 31 can gradually protrude out of the second cylinder 70. When the second piston 31 protrudes, the protrusion 30 can be raised and protruded to the outside of the through hole 20a. The second cylinder 70 operates in a state of pressure balance with the first cylinder 60 so that the descent of the foot plate 20 and the elevation of the projection 30 are concurrently formed, As a result, slip prevention can be effectively performed. The lower part of the second cylinder 70 and the lower part of the first cylinder 60 communicate with each other, but the present invention is not limited thereto. For example, the side part of the second cylinder 70, And the side portions of the base plate 60 may communicate with each other.

At least one of the first cylinder (60) and the second cylinder (70) may be provided with an elastic member (80). The resilient member 80 is elastically deformed so that the protruding portion 30 does not protrude out of the foot portion 20 in an initial state in which pressure is not applied to the foot portion 20 and the protruding portion 30, For example, by a compression coil spring. When the elastic member 80 is installed in the first cylinder 60, the elastic member 80 is disposed outside the first cylinder 60 interposed between the foot part 20 and the first cylinder 60, When installed in the second cylinder 70, can be interposed between the second cylinder 70 and the second piston 31 and disposed inside the second cylinder 70. The elastic member 80 is disposed in a relaxed state in an initial state where no pressure is applied to the foot plate portion 20 and the protrusion portion 30. When the pressure is applied to the foot plate portion 20 and the protrusion portion 30, As shown in FIG. However, the elastic member 80 is not limited to being formed of a compression coil spring, and can be modified in various forms.

Further, a watertight member 90 is interposed between the main body 10 and the footrest 20. The watertight member 90 is for sealing the spaced gap between the main body 10 and the footrest 20 so that one side can be connected to the main body 10 and the other side can be connected to the footrest 20 have. For example, the watertight member 90 may be formed of a resilient ring-shaped rubber plate so that its outer surface is coupled to the body portion 10 and its inner surface can be coupled to the footrest portion 20. The watertightness member 90 closes the space between the main body portion 10 and the footrest portion 20 so that water is poured into the recessed portion 10a when raining or when water is poured into the main body portion 10 or the footrest portion 20 Can be prevented.

Hereinafter, with reference to Figs. 3 to 5, the operation of the anti-slip footrest 1 will be described in more detail.

3 to 5 are operation diagrams for explaining the operation of the anti-slip footrest.

The slip prevention footrest 1 according to the present invention is configured such that the protrusion 30 forming the protrusions and recesses in the footrest portion 20 is inserted into the through hole 20a and protruded only when the user passes or rains, have. Particularly, in the normal state, the projection 30 is not exposed to the outside of the through hole 20a, so that the wear of the projection 30 can be minimized and the wear of the projection 30 can be minimized.

3 is a view showing an initial state in which no pressure is applied to the foot plate and the protruding portion and no water droplet is sensed in the sensor portion.

The footrest portion 20 having the plurality of through holes 20a is provided with a sensor portion 40 on the upper surface thereof and inserted into the recessed portion 10a of the body portion 10 so as to be slidable in the vertical direction. The footrest 20 is supported by a first cylinder 60 accommodated in the recessed portion 10a and a first piston 21 coupled to the footrest 20 is slidably moved in the first cylinder 60 have. The protrusion 30 provided to be slidable in the vertical direction along the through hole 20a is supported by the second cylinder 70 communicating with the first cylinder 60 and the protrusion 30 The second piston 31 coupled with the second piston 30 can slide. An elastic member 80 is interposed between the foot part 20 and the first cylinder 60 and between the second cylinder 70 and the second piston 31. The body part 10 and the foot part 20 ) Is sealed by the watertight member 90.

In the initial state in which no pressure is applied to the pedal portion 20 and the protrusion portion 30 and no water droplet is sensed by the sensor portion 40, the driving portion 50 releases the driving force to release the pedal portion 20 and the protrusion portion 30, And the elastic member 80 is arranged in a relaxed state.

As the elastic member 80 interposed between the foot part 20 and the first cylinder 60 and between the second cylinder 70 and the second piston 31 is relaxed, And the protrusion 30 can be held in the inserted state in the through hole 20a at the same time.

4 is an operation diagram for explaining an operation process when the footrest is pressed.

When the user presses the footrest 20, the footrest 20 is lowered so that the upper face can form a stepped structure with the upper face of the body 10. When the footrest 20 descends, the first piston 21 is gradually received into the first cylinder 60, so that fluid in the first cylinder 60 flows into the second cylinder 70, , The second piston (31) gradually protrudes out of the second cylinder (70) and the protrusion (30) can rise. The raised protruding portion 30 protrudes outside the through hole 20a, thereby preventing the user from slipping.

Finally, FIG. 5 is an operational view for explaining an operation process in case of rainy weather or when water is poured into the main body portion or footstool portion.

When water is poured into the main body 10 or the footrest 20 during rainy weather, the water droplet is sensed by the sensor unit 40. When the sensor unit 40 senses water droplets, the driving unit 50 provides a driving force to the footrest 20 to lower the footrest 20. When the footrest 20 descends, the fluid in the first cylinder 60 flows into the second cylinder 70, and as the fluid flows into the second cylinder 70, the projection 30 rises And can protrude out of the through hole 20a. The protrusion 30 protrudes out of the through hole 20a when water is poured into the main body 10 or the footrest 20 at the time of rainstorming or the like so that the surface of the footrest 20 can be slippery, The slip can be prevented from occurring.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: slip prevention footstock 10:
10a: indentation part 20:
20a: Through hole 20b: Insert groove
21: first piston 30: projection
31: second piston 40: sensor part
50: driving part 60: first cylinder
70: second cylinder 80: elastic member
90: watertight member
S: Stairs G: Railing

Claims (6)

A plate-shaped main body portion having an upper surface opened and an indented portion formed inside;
A foot plate part inserted into the indentation part so as to be slidable in a vertical direction and having a plurality of through holes vertically penetrating the upper surface and the lower surface;
A protrusion disposed at a lower portion of the foot plate and movably installed in the vertical direction along the through hole;
A sensor unit installed on the main body or the foot plate to detect water droplets falling on the surface;
A driving part for moving the foot part to project the projection part to the outside of the through hole when the sensor part senses water droplets;
A first cylinder installed at a lower portion of the footrest and supporting the footrest,
And a second cylinder installed at a lower portion of the protrusion and supporting the protrusion, the second cylinder operating in a state of pressure-balance with the first cylinder. delete The footrest according to any one of claims 1 to 4, further comprising: a footrest provided in at least one of the first cylinder and the second cylinder, for preventing the protrusions from protruding from the footrest portion in an initial state in which no pressure is applied to the footrests and the protrusions, And a resilient member for providing pressure to the protruding portion or the protruding portion. The slip prevention footrest according to claim 1, wherein the driving unit releases the driving force such that the footrest and the protrusion move freely when the sensor unit does not sense water drops. The anti-slip footrest according to claim 1, further comprising a watertight member sealing the space between the main body and the footrest. The anti-slip footrest according to claim 1, wherein the projection has a cone-shaped end portion.

Images