JP2020066350A - Platform step device - Google Patents

Abstract

To reduce the looseness caused when a plurality of plate-like members are connected to one another.SOLUTION: A platform step device 10 is used by bringing side surfaces (a side surface 42 and a side surface 52) of a center step 40 and a side step 50, which are splittable, into intimate contact wich each other. The platform step device applies a force pressing a first gear 62 and a second gear 63 provided on the side surface 42, which is one of both side surfaces, against the side step 50 having the side surface 52 facing the first and second gears by bias members such as a first spring 66 and a second spring 67. Specifically, the platform step device applies the force in a rotation direction opposite to each of the two gears such as the first gear 62 and the second gear 63 around a rotational shaft 61 as the force pressing these gears against the side step 50.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a technique for preventing a vehicle from falling into a clearance between a home and a vehicle.

  As a technique for preventing the vehicle from falling into the gap between the home and the vehicle, Patent Document 1 discloses a movable step device in which a movable step is provided on a support plate that moves back and forth along a guide rail.

JP, 2016-2951, A

In the home step device, a plate-shaped member such as a step is used. For example, when a plate-shaped member is made separable for easy carrying, when a plurality of divided plate-shaped members are connected and used, rattling may occur due to a slight gap.
In view of the above background, the present invention has an object to suppress rattling when a plurality of plate-shaped members are connected.

  In order to solve the above-mentioned problems, the present invention applies a force for pressing a pressing member provided on one side surface of a plurality of plate-shaped members used with their side surfaces in close contact with each other to a plate-shaped member having opposite side surfaces. A home step device is provided as a first aspect.

  According to the home step apparatus of the first aspect, it is possible to suppress rattling when connecting a plurality of plate-shaped members.

  In the home step apparatus according to the first aspect, the pressing member is two gears that rotate in opposite directions about a common rotation axis and sandwich the teeth of the other party, and the pressing member for each of the two gears. A configuration in which a force in the opposite direction is applied as the pressing force may be adopted as the second aspect.

  According to the home step device of the second aspect, rattling can be suppressed regardless of the direction of the force applied to the plate member.

  In the home step device according to the first aspect, the pressing member has a shape in which the width increases as the distance from the one side surface increases, and a recess into which the pressing member is fitted is formed on the opposing side surface, A configuration in which a force in a direction of separating one side surface and the facing side surface is applied as the pressing force may be adopted as the third aspect.

  According to the home step apparatus of the third aspect, it is possible to suppress rattling especially when a force is applied in a direction in which the plate-shaped members are separated from each other.

  In the home step apparatus according to the first aspect, the pressing member has a shape in which the width becomes narrower as it goes away from the one side surface, and a concave portion on which the pressing member is pressed is formed on the facing side surface, A configuration in which the pressing member is pressed against the recess by a pressing force may be adopted as the fourth aspect.

  According to the home step apparatus of the fourth aspect, it is possible to connect the plurality of plate-shaped members only by bringing the side surfaces closer to each other from positions facing each other.

  In the home step apparatus according to any one of the first to fourth aspects, a configuration including a release mechanism that releases the pressing force may be adopted as the fifth aspect.

  According to the home step device of the fifth aspect, it is possible to easily separate the plate-shaped member.

  In the home step apparatus of the fifth aspect, a configuration may be adopted as a sixth aspect in which the release mechanism has a maintenance mechanism that maintains the state in which the pressing force is released.

  According to the home step device of the sixth aspect, it is possible to further facilitate the separation of the plate member.

The figure showing the external appearance of the home step apparatus which concerns on an Example. Figure showing the appearance of the home step device Figure showing the appearance of the home step device The figure showing the top view of the home step device with the top plate removed. Enlarged view of connecting parts The figure which expands and represents the connection part of a modification. The figure which expands and represents the connection part of a modification. The figure which expands and represents the connection part of a modification.

[1] Example FIG. 1 shows an appearance of a home facility 1 according to an example. The home equipment 1 is installed on the track side of a platform 7 of a railway station to prevent passengers from falling from the platform 7, and when a railway vehicle arrives at the platform 7, enables and disembarks the platform. It is a facility that plays a role in preventing the fall of time. FIG. 1A shows the home equipment 1 viewed from the track side, and FIG. 1B shows the home equipment 1 viewed from above vertically.

  The home facility 1 includes at least one home door 3 and at least one home step device 10. In this embodiment, the home facility 1 includes a plurality of home doors 3 and a plurality of home step devices 10. Each home door 3 includes a door 4 and a storage unit 5. In this embodiment, the door 4 is arranged at a position facing the door of the stopped vehicle. The storage unit 5 stores the door 4 in the open position from one end in the horizontal direction (that is, plays a role as a so-called door pocket).

  Further, the storage part 5 has an opposite end contacting the door 4 in the closed position so that passengers on the platform 7 are not passed through the track side. The open position is the position of the door 4 in the most open state, and the closed position is the position of the door 4 in the completely closed state. The plurality of platform doors 3 are installed side by side over the entire extension direction A3 of the platform 7 (also the extension direction of the track), so that the platform 7 is separated from the track side and the inside. The inner side here means a portion apart from the outer side when the track side of the home 7 is the outer side. The track side and the inner side may be paraphrased as the side (track side) and the side (inner side) of the home 7 closer to the track.

  The home step device 10 is a device that includes a housing 20 and a step 30, and that inserts and removes the step 30 housed in the housing 20. The housing 20 is plate-shaped and hollow, and has an opening 21 on the line side. The step 30 is housed inside the housing 20, and is driven in and out through the opening 21 of the housing 20 by being driven by the driving means described later. Step 30 is a scaffolding for passengers who get on and off by projecting into the gap between the platform 7 and the stopped vehicle.

  The home step device 10 moves the step 30 in the direction from the inside of the home 7 to the track side (the bulging direction A1) so as to be in the projecting state in which it projects from the housing 20, and the step 30 in the projecting state is tracked. It is moved in the direction from the side toward the inside of the home 7 (accommodation direction A2) to be accommodated in the housing 20. The home step device 10 has a shape in which the dimension of the home 7 in the extension direction A3 is longer than the dimension of the extension direction A1. The extension direction A3 of the home 7 is a direction orthogonal to the overhang direction A1 and the accommodation direction A2.

  The home 7 is provided with a notch 8 for installing the home step device 10. The housing member 6 is installed in the notch 8. The accommodating member 6 has a shape of a hollow rectangular parallelepiped having four surfaces excluding the upper surface and the side surface on the line side, and has a box-like shape formed inside so as to accommodate the home step device 10. It is a member. The accommodation member 6 is installed in the notch 8 of the home 7 in a state where the home step device 10 is accommodated. The accommodation member 6 is fixed to the notch 8 by injecting a filler such as mortar between the member itself and the notch 8.

  The home step device 10 is installed inside the housing member 6 fixed to the notch 8. In this state, the home step device 10 has a top surface of the home device that is substantially the same plane as the top surface of the home 7, and a side surface (a side surface in a state where the step 30 is housed) of the home device of the home device 7. It is installed so that it is substantially flush with the side surface. The storage part 5 of the home door 3 is installed above both ends of the home step device 10 installed in the home 7 in the extending direction A3.

  In step 30, in the present embodiment, the dimension in the extending direction A3 is substantially the same as the distance between the adjacent storage parts 5 (width of the entry / exit path when the door 4 is opened). The home door 3 and the home step device 10 are electrically connected to a control device (not shown), and opening / closing of the door 4 and insertion / removal of step 30 are interlocked with each other. Specifically, for example, when the vehicle is stopped, step 30 first projects and then the door 4 opens. Then, at the departure time, first, the door 4 is closed and then step 30 is accommodated, and the vehicle departs. In addition, if passenger safety is ensured, opening / closing and withdrawal may be performed at a different timing.

  2 and 3 show the appearance of the home step device 10. 2 shows the home step apparatus 10 in a state where the step 30 is housed in the housing 20, and in FIG. 3, the home step apparatus 10 in a state in which the step 30 moves in the overhang direction A1 and overhangs from the housing 20. The step device 10 is represented. The housing 20 includes a main body portion 22 and a top plate portion 23. The main body 22 is a box-shaped member having four surfaces of the hollow rectangular parallelepiped excluding the surfaces vertically above and on the line side.

  The top plate portion 23 is a plate-shaped portion that covers the vertically upper portion of the main body portion 22, and has five top plates. Each top plate is made of metal or the like and has a strength that does not easily deform even when a passenger steps on it. Each top plate has a non-slip projection formed on its top surface. This non-slip protrusion is also formed on the upper surface of the step 30. Each top plate is fixed to the main body 22 with rivets. Once installed on the home 7, the top plate is rarely removed, but if necessary for repair or the like, the top plate can be removed by removing the rivet.

  FIG. 4 is a plan view of the home step device 10 with the top plate 23 removed. Note that, in FIG. 4, the projections for preventing slippage are omitted for easy viewing of the drawing. The step 30 can be divided into a central step 40 and two side steps 50. The central step 40 and the side steps 50 are connected by a connecting portion 60, the details of which will be described later, and their side surfaces are used in close contact with each other. The central step 40 and the side steps 50 are examples of the "plurality of plate-shaped members" in the present invention.

  The main body portion 22 is provided with a guide rail 24 and two sets of guide rails 25. The guide rail 24 is a rail that guides the central step 40 in the extension direction A1 and the accommodation direction A2. The central step 40 includes a rail portion 41 having wheels or the like for moving along the guide rail 24. The guide rail 25 is a rail that guides the side step 50 in the extension direction A4 of the guide rail (direction extending along both the extension direction A1 and the accommodation direction A2).

  The side step 50 includes a rail portion 51 having wheels or the like for moving along the guide rail 25. The main body 22 is provided with a motor 26 and a ball screw 27. The ball screw 27 connects the motor 26 and the central step 40. When the motor 26 rotates, the ball screw 27 converts the rotational force into a force in the direction along the extension direction A1 or the accommodation direction A2 and transmits the force to the central step 40. The central step 40 moves in the extension direction A1 and the accommodation direction A2 by this force.

When the central step 40 moves, the side steps 50 connected by the connecting portion 60 also move in the same direction. In this way, the entire step 30 moves in the overhang direction A1 and the accommodation direction A2.
FIG. 5 shows the connecting portion 60 in an enlarged manner. FIG. 5A shows the connecting portion 60 as seen from above in the vertical direction, and FIG. 5B shows the connecting portion 60 as seen in the projecting direction A1.

  The central step 40 has a space 43 that is open to a side surface 42 facing the side step 50. The connecting portion 60 is provided in the space 43. The connecting portion 60 includes a rotating shaft 61, a first gear 62, a second gear 63, a first protruding portion 64, a second protruding portion 65, a first spring 66, and a second spring 67. The rotating shaft 61 is fixed to the upper surface and the lower surface of the space 43 (both are part of the central step 40), and rotatably supports the first gear 62 and the second gear 63.

  The first gear 62 and the second gear 63 are spur gears having the same shape and size and having pointed tips. The first protrusion 64 is a protrusion provided on the upper surface of the first gear 62, and one end of the first spring 66 is attached to the first protrusion 64. The other end of the first spring 66 is fixed to the inner side surface 44 of the space 43. The first gear 62 is biased by the first spring 66 in the clockwise rotation direction when viewed from above in the vertical direction.

  The second protrusion 65 is a protrusion provided on the upper surface of the second gear 63, and one end of the second spring 67 is attached to the second protrusion 65. The other end of the second spring 67 is fixed to the inner side surface 44 of the space 43. The second gear 63 is biased by the second spring 67 in the counterclockwise rotation direction when viewed from above in the vertical direction. As described above, the first gear 62 and the second gear 63 are two gears that are so-called scissors gears that rotate in the opposite directions about the common rotation shaft (rotation shaft 61) and sandwich the mating teeth.

  On the side surface 52 of the side step 50 facing the central step 40, a tooth-shaped surface 53 that is a tooth-shaped surface that meshes with the tooth shapes of the first gear 62 and the second gear 63 is formed. When the central step 40 and the side step 50 are brought into close contact with each other, the biasing force of the first spring 66 and the second spring 67 causes the first gear 62 and the second gear 63 to sandwich the teeth included in the tooth-shaped surface 53. Pressed against.

  As described above, the home step device 10 is used by bringing the side surfaces (side surface 42 and side surface 52) of the divisible central step 40 and side step 50 into close contact with each other. The home step device 10 opposes the first gear 62 and the second gear 63 provided on the side surface 42, which is one of the both side surfaces, by the biasing members of the first spring 66 and the second spring 67. A pressing force is applied to the side step 50 having the side surface 52.

  The center step 40 and the side steps 50 are examples of the "plurality of plate-like members" in the present invention, and the first gear 62 and the second gear 63 are examples of the "pressing member" in the present invention. Specifically, the home step device 10 applies a force to each of the two gears, ie, the first gear 62 and the second gear 63, in the opposite rotation direction about the rotation shaft 61 as a side step. It is added as a force to press 50.

  For example, when forming concavities and convexities on the opposite side surfaces of a plate-shaped member that closely adheres the side surfaces to each other, if the dimensions are completely matched, it will not be possible to engage with a slight error, so there will be a slight gap It is common to form However, this gap (so-called backlash) causes rattling of the plurality of connected plate-shaped members. For example, in this embodiment, the central step 40 to which the driving force is directly applied and the side step 50 to which the driving force is not directly applied are connected.

  When such plate-like members are connected, if there is the above-mentioned gap, a sound that collides with the side step is generated when the central step starts moving, and the foot of the person stepping on the boundary of the step shifts. It can also cause your body to lose its position. In the present embodiment, as described above, since the two gears, which are the pressing members, are pressed against the side step 50 by the biasing member, a plurality of plate-shaped members are connected as compared with the case where only the backlash is provided. The rattling of time can be suppressed.

  Further, in this embodiment, the first gear 62 and the second gear 63 sandwich the side surface 52 of the side step 50 by using a so-called scissor gear mechanism. As a result, no matter how the force is applied to the central step 40 and the side steps 50, rattling can be suppressed more than when a backlash is simply provided.

[2] Modified Example The above-described embodiment is merely an example of the implementation of the present invention, and may be modified as follows. Further, the embodiment and each modification may be combined as needed.

[2-1] Pressing member In the embodiment, the scissors gear is used as the pressing member, but the pressing member is not limited to this.
FIG. 6 is an enlarged view of the connecting portion 60a of this modification. FIG. 6 shows the connecting portion 60a viewed from above in the vertical direction. The connecting portion 60a includes a trapezoidal portion 61a, a first spring 62a, and a second spring 63a.

  The trapezoidal portion 61a is formed so as to project to the side surface 42a of the central step 40a that faces the side step 50a. The trapezoidal portion 61a has a trapezoidal shape in which the width (the dimension in the extending direction A4 of the guide rail) increases as the distance from the side surface 42a increases, with the upper bottom facing the side surface 42a and the lower bottom facing the side step 50a. . A fitting portion 53a into which the trapezoidal portion 61a is fitted is formed on the side surface 52a of the side step 50a that faces the central step 40a.

  The fitting portion 53a is a portion in which the side surface 52a is recessed, and the width (the dimension in the extending direction A4 of the guide rail) increases as the distance from the side surface 52a increases. The upper bottom is directed toward the side surface 52a and the lower bottom is the side step 50a. It has a trapezoidal shape facing inward. A trapezoidal portion 61a is fitted in the fitting portion 53a. One end of each of the first spring 62a and the second spring 63a is fixed to the side surface 42a of the central step 40a, and the other ends are free ends.

  By contacting the side surface 52a of the side step 50a with the other end, the first spring 62a and the second spring 63a exert a force in a direction in which the central step 40a and the side step 50a separate from each other. Due to this force, the side surface 64a of the trapezoidal portion 61a is pressed against the side surface 54a of the fitting portion 53a. The trapezoidal portion 61a is an example of the "pressing member" of the present invention, and the fitting portion 53a is an example of the "recessed portion into which the pressing member is fitted" of the present invention.

  That is, the home step device 10a uses the first spring 62a and the second spring 63a to apply a force in the direction (separation direction A5) separating the side surface 42a of the central step 40a and the side surface 52a of the side step 50a to the side step 61a. It is added as a force to press against 50a. In this modified example, as in the embodiment, the trapezoidal portion 61a, which is the pressing member, is pressed against the side step 50a by the biasing member (two springs), and therefore a plurality of backlashes are provided as compared with the case where only the backlash is provided. It is possible to suppress rattling when connecting the plate-shaped members.

  Further, due to the shapes of the trapezoidal portion 61a and the fitting portion 53a, the movement in the separating direction A5 is completely prevented when the side surface 64a of the trapezoidal portion 61a is pressed against the side surface 54a of the fitting portion 53a. Accordingly, for example, rattling can be suppressed when a force is applied in a direction (separation direction A5) in which the plate-shaped members (the central step 40a and the side step 50a) are separated from each other by the foot of the passenger.

  FIG. 7 is an enlarged view of the connecting portion 60b of this modification. FIG. 7 shows the connecting portion 60b viewed from above in the vertical direction. The connecting portion 60b includes a corner member 61b, a first spring 62b, and a second spring 63b. The corner member 61b has a corner portion 65b having an apex 64b, and has a home base shape when viewed from above in the vertical direction. A space 43b for storing the corner member 61b is formed on the side surface 42b of the central step 40b.

  The corner member 61b is stored in the space 43b with the apex 64b facing the side step 50b. Therefore, the corner member 61b has a shape in which the width (dimension in the extending direction A4 of the guide rail) becomes narrower as it goes away from the side surface 42b of the central step 40b, that is, a tapered shape. The space 43b is formed so that the dimension of the corner member 61b in the extending direction A4 is substantially the same as that of the corner member 61b. Therefore, there is almost no gap between the side surface 44b of the space 43b in the extending direction A4 and the corner member 61b.

  One ends of the first spring 62b and the second spring 63b are fixed to the corner step 61b side of the corner member 61b. The other ends of the first spring 62b and the second spring 63b are fixed to the inner side surface 45b of the space 43b. The first spring 62b and the second spring 63b are compression coil springs, and apply a force to press the corner member 61b toward the side step 50b.

  The side surface 52b of the side step 50b facing the central step 40b has a common shape with the corner portion 65b of the corner member 61b (that is, it has a surface forming the same angle as the corner portion 65b), and the corner portion 65b is in close contact. Possible recesses 53b are formed. The angular member 61b is pressed against the recessed portion 53b by the biasing force of the first spring 62b and the second spring 63b. The corner member 61b is an example of the "pressing member" of the present invention, and the recessed portion 53b is an example of the "recessed part to which the pressing member is pressed" of the present invention.

  In other words, the home step device 10b presses the corner member 61b, which is an example of the pressing member, into the recessed portion 53b by the force that presses the pressing member against the side step 50b (the biasing force of the first spring 62b and the second spring 63b). . Since the corner member 61b is pressed against the recess 53b, the gap between the corner member 61b and the recess 53b is eliminated, and rattling when connecting a plurality of plate-shaped members is reduced as compared with the case where a backlash is simply provided. Can be suppressed.

  Further, in this modification, the corner member 61b, which is an example of the pressing member, has a shape in which the width becomes narrower as it goes away from the side surface 42b, that is, a tapered shape. Due to this tapered shape, the plurality of plate-shaped members (the central step 40b and the side step 50b) can be connected to each other only by bringing the side surfaces (the side surface 42b and the side surface 52b) closer to each other without being displaced vertically. .

[2-2] Shape of pressing member The shape of the pressing member is not limited to the above. For example, the first gear 62 and the second gear 63 shown in FIG. 5 may have different numbers of teeth and tooth shapes from those in FIG. In short, the scissors gear may be any gear that can sandwich the toothed surface of the side step. Further, the trapezoidal portion shown in FIG. 6 may differ from that in FIG. 6 in the angle and the length when viewed from vertically above the side surface corresponding to the side surface 64a.

  Further, the side surface corresponding to the side surface 64a may be a curved surface instead of a flat surface. In either case, the side step side may be provided with a surface having a shape in which the side surface of the trapezoidal portion comes into close contact when the side surface is pressed. Further, the corner member shown in FIG. 7 may have an angle and a length of the corner portion as viewed from above vertically different from those in FIG. 7. Also, the side surfaces of the corners may be curved instead of flat. Also in this case, a surface having a shape in which the side surface of the corner member comes into close contact when the side surface of the corner member is pressed may be provided on the side step side.

[2-3] Release Mechanism The force for pressing the pressing member may be released.
FIG. 8 shows the connecting portion 60c of this modification in an enlarged manner. FIG. 8 shows the connecting portion 60c viewed in the overhang direction A1. Similar to the embodiment, the connecting portion 60c includes the first gear 62 and the second gear 63, which are scissors gears, as pressing members.

  A bias adjustment unit 70 is provided on the other end side of the first spring 66c and the second spring 67c included in the connecting unit 60c. The bias adjustment unit 70 is a mechanism that adjusts the bias force of the first spring 66c and the second spring 67c. The bias adjusting unit 70 includes a fixing member 71 and a sandwiching member 72. The fixing member 71 is a rod-shaped member, and is provided so as to be movable in the separating direction A5 (direction separating the central step 40c and the side step 50c) while keeping the posture in which the longitudinal direction is along the vertical direction.

  The other ends of the first spring 66c and the second spring 67c are fixed to the fixing member 71, not to the inner side surface 44 of the space 43. The central step 40c has a hole connecting from the space 43 to a space vertically below the self step, and the fixing member 71 projects outside the central step 40c through the hole. The operator can move the fixing member 71 in the separating direction A5 by moving the protruding portion.

  A sandwiching member 72 is provided vertically below the central step 40c. The sandwiching member 72 has three protrusions, and a gap 73 and a gap 74 sandwiching the fixing member 71 are formed between the protrusions. In the state where the fixing member 71 is sandwiched in the gap 73, as shown in FIG. 8A, the first spring 66c and the second spring 67c are in an extended state, and the first gear 62 and the second gear 67c are the same as in the embodiment. A force for pressing the second gear 63 against the side step 50c is applied.

  On the other hand, in the state where the fixing member 71 is sandwiched in the gap 74, as shown in FIG. 8B, the first spring 66c and the second spring 67c are in a contracted state, and the urging is not performed. The force pressing the first gear 62 and the second gear 63 against the side step 50c is released. In this way, the bias adjusting unit 70 releases the force for pressing the pressing member (the first gear 62 and the second gear 63) against the side step 50c, and releases it even when the user releases the fixing member 71. Stay in the state.

  The bias adjusting unit 70 is an example of the “release mechanism” of the present invention and an example of the “maintenance mechanism” of the present invention. If the pressing member of this modification is pressed against the side step 50c, that is, if the tooth-shaped surface 53c of the side step 50c is sandwiched between the first gear 62 and the second gear 63, that portion will resist. Therefore, it becomes difficult to separate the central step 40c and the side step 50c.

  In the present modified example, by releasing the pressing force as described above, the pinching of the tooth-shaped surface 53c is also released, so that it is possible to facilitate the separation of the plate-shaped member as compared with the case where the release mechanism is not provided. . Further, once the pressing force is released, the state is maintained even if the user releases his / her hand. Therefore, the plate-shaped member can be more easily separated as compared with the case where there is no maintenance mechanism for realizing it. You can

  8 shows the release mechanism and the maintenance mechanism provided when the scissors gear is used as the pressing member, the case where the trapezoidal portion is provided as in the example of FIG. 6 and the corner member is provided as in the example of FIG. Even when provided, a release mechanism and a maintenance mechanism may be provided. For example, in the case of a trapezoidal portion, a space in which the first spring 62a and the second spring 63a that urge the trapezoidal portion in a contracted state can be made to have a natural length is formed in the central step 40a, and a space on the end of the space is illustrated. A fixing member as shown in 8 may be provided.

  Also in the case of the corner member, a space in which the first spring 62b and the second spring 63b for biasing the corner member in the contracted state can be naturally lengthened is formed in the inner side surface 45b, and the end on the space side is formed. A fixing member as shown in FIG. 8 may be provided on the portion. In any case, the pressing member is pressed when the fixing member is sandwiched in the side step side gap of the sandwiching member, and the pressing force is released when the fixing member is sandwiched in the opposite side gap.

[2-4] Biasing member The biasing member may be different from that described in each of the above examples. For example, in the embodiment, the first gear 66 and the second gear 63, which are tension coil springs, urge the first gear 62 and the second gear 63 in the rotational direction. However, the present invention is not limited to this. For example, a compression coil spring or a torsion spring. May be biased by. In short, any urging member may be used as long as the first gear 62 and the second gear 63 are urged in the rotational directions opposite to each other.

  Further, in the embodiment, for example, both ends of the rotary shaft 61 are fixed to a slider that can move in parallel in the separating direction A5, and a biasing member (compression spring or the like) that gives a force to the side shaft 50 to the rotary shaft 61. May be provided. In that case, the force that presses the first gear 62 and the second gear 63 against the toothed surface 53 in addition to the force that the first gear 62 and the second gear 63 sandwich the toothed surface 53 presses both gears against the side step 50. It will be added as a force.

  Further, instead of the first spring 62a and the second spring 63a which are the compression coil springs shown in FIG. 6, for example, a leaf spring, a bamboo shoot spring, a disc spring, or the like may be used instead. Also, a hydraulic damper or the like may be used instead of the spring. Further, instead of fixing one end of the biasing member to the side surface 42a of the central step 40a, it may be fixed to the side surface 52a of the side step 50a. In short, any urging member may be attached and used anywhere as long as it applies a force in the separating direction A5 to both side surfaces.

  Also, for the first spring 62b and the second spring 63b shown in FIG. 7, various springs or hydraulic dampers may be used as in the example of FIG. In this case, any biasing member may be attached and used anywhere as long as it applies a force for pressing the corner member 61b toward the side step 50b.

[2-5] Plate-shaped member In the embodiment, the central step 40 and the side steps 50 are used as a plurality of plate-shaped members, but the plurality of plate-shaped members are not limited to this. For example, five top plates included in the top plate portion 23 may be used as the plurality of plate-shaped members. In short, any plate-shaped member may be used as long as it is a plurality of plate-shaped members that can cause rattling (a plurality of plate-shaped members that are used by bringing their side surfaces into close contact with each other).

DESCRIPTION OF SYMBOLS 1 ... Home equipment, 10 ... Home step device, 20 ... Housing, 21 ... Opening part, 22 ... Main body part, 23 ... Top plate part, 24, 25 ... Guide rail, 30 ... Step, 40 ... Central step, 41 ... Rail portion, 50 ... Side step, 51 ... Rail portion, 53, 53c ... Toothed surface, 53a ... Fitting portion, 53b ... Recessed portion, 60, 60a, 60b, 60c ... Connecting portion, 70 ... Energizing adjustment portion.

Claims (6)

  A home step device that applies a force to press a pressing member provided on one side surface of a plurality of plate-shaped members that are used by bringing the side surfaces into close contact with each other, to a plate-shaped member having opposite side surfaces. The pressing member is two gears that rotate in a direction opposite to each other about a common rotation axis and sandwich a tooth of the other side, and force in the opposite direction to each of the two gears is used as the pressing force. The home step device according to claim 1. The pressing member has a shape such that the width thereof becomes wider as it goes away from the one side surface, and a concave portion into which the pressing member is fitted is formed on the facing side surface, and the pressing member has a direction to separate the one side surface and the facing side surface. The home step device according to claim 1, wherein a force is applied as the pressing force. The pressing member has a shape such that the width thereof becomes narrower as it goes away from the one side surface, and a concave portion to which the pressing member is pressed is formed on the opposing side surfaces, and the pressing member presses the pressing member to the concave portion. Item 1. The home step device according to Item 1. The home step device according to claim 1, further comprising a release mechanism that releases the pressing force. The home step device according to claim 5, further comprising a maintenance mechanism that maintains a state in which the release mechanism releases the pressing force.

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