JPH11324480A - Automatic opening and closing sliding door device using stepping pressure - Google Patents

Abstract

(57) [Problem] In the conventional method, there is no mechanism that considers the magnitude of the stepping pressure, and even if a failure occurs in the operating force transmission mechanism, manual opening and closing is impossible or very difficult. there were. A sliding door to which a biasing force for moving in a closing direction is added.
And the tread plate 20 that sinks due to the treading pressure, and the amount of sinking of the tread plate 20 is converted into a rotation angle, and the first arm 33 is rotated.
An operating mechanism 3, a lever mechanism 4 that is linked via a tension spring 42 to a distal end portion 33t of the first arm 33, and outputs the enlarged movement amount of the distal end portion 40t, and an output side of the lever mechanism 4 and the sliding door 10. To the pulling wire 5 linked to pull the sliding door 10 in the opening direction. The lever mechanism 4 supports the stem 40b of the lever 40 with a pin, and links the vicinity of the middle with the tip 33t of the first arm 33 with the link wire 41, and links the pulling wire 5 with the tip 40t on the output side. The lever mechanism 4 is operated by adding a second operating mechanism 6 having the same mechanism as the first operating mechanism 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic opening / closing sliding door apparatus using a stepping pressure that opens and closes a sliding door by using a stepping pressure of a person as a driving source without a power means, and more particularly to an adult child having a different stepping pressure without fail. The present invention relates to an automatic opening / closing sliding door device utilizing a stepping pressure to be operated.

[0002]

2. Description of the Related Art Conventionally, there have been many applications for a device for automatically opening and closing a sliding door at an entrance and exit by using a stepping pressure of a stepped person as a driving source without using a power source such as an electric motor. Was.

For example, displacements due to loads are replaced with changes in hydraulic pressure or fluid pressure such as air pressure.
Japanese Patent Publication Nos. Sho 59-35754, Sho 54-38645, Sho 58-54178 and Sho 58-54178 disclose a method of opening a sliding door by operating a piston mechanism (hydraulic method).
JP-A-6-37482 and JP-A-7-286476.
No., etc.

[0004] However, these hydraulic systems are advantageous in that the amount of displacement caused by stepping can be freely transmitted.
Although it is suitable for transmitting the operating force (opening operation force) by the compression of the telescopic body, the return of the telescopic body to its original size (door closing operation) by closing the door has a disadvantage that it is difficult to perform smoothly. Was. For this reason, another acting force means is provided or a valve is provided in the flow path, but lacks quick response with good responsiveness, and frequent ingress and egress has been troublesome. In addition, those using hydraulic pressure, etc., are affected by the surrounding air temperature, and especially when exposed to the outdoors, not only had the inconvenience that the opening and closing response differs depending on the season, but also the problem of freezing obstacles in the liquid path became a problem. Construction was still problematic.

[0005] Separately, a guide rail disposed above or below a sliding door is appropriately inclined in a desired moving direction by using a link mechanism for a displacement amount due to stepping, and the sliding door is slid along this inclination (inclination). Method)
For example, Japanese Utility Model Laid-Open No. 2-2479 or Japanese Utility Model Laid-Open No. 6-374.
No. 82, etc.

However, in such a tilting method, since the movement relies only on natural movement on a slope caused by the weight of the sliding door, it is difficult to perform quick movement with good responsiveness as described above.
Frequent entry and exit was troublesome. In addition, when dust or the like is accumulated on the guide rail due to long-term use, there is a disadvantage that the dust is greatly affected by the dust.

[0007] Separately, a displacement amount due to the stepping-in is increased through a large-diameter and small-diameter pulley mounted on the same axis, and a sliding door is pulled in with the enlarged displacement amount. -42937, Shoko 47-4
2939, Jiko 48-229, Jiko 48-230,
It is disclosed in Japanese Utility Model Publication No. 51-24123.

However, such a pulley system requires a large number of large-diameter and small-diameter pulleys to be interposed in a plurality of stages in order to increase the amount of displacement, which is accompanied by a complicated mechanism and an increase in rotational friction resistance. And it is difficult to ensure reliable and reliable operation. In order to reduce the number of pulleys, it is conceivable to use a large-diameter pulley, but this is not practical in terms of space efficiency around a sliding door.

Furthermore, in the above-mentioned conventional various systems, there is no mechanism that takes into account the magnitude of the stepping pressure, and the mechanism can be opened when a predetermined stepping pressure is applied.
Nothing has been considered to ensure that even a small child with a small stepping pressure operates.

[0010] Furthermore, when any trouble occurs in the operating force transmitting mechanism having the above structure, there is a disadvantage that it is impossible or extremely difficult to manually open and close the mechanism.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and ensures reliable operation regardless of the magnitude of the stepping pressure, as well as ensuring the operation reliability and reliability by simplifying an opening and closing mechanism. An object of the present invention is to provide a new and highly feasible automatic opening / closing sliding door apparatus utilizing a stepping pressure for the purpose of manually opening and closing even in the case of one failure in the same manner as a normal manual sliding door.

[0012]

In order to achieve the above object, the present invention is configured as follows. That is, the sliding door which is supported so as to be openable and closable, and which applies a moving urging force in the closing direction, and the sliding door which is in the closed position are respectively disposed on the floor surface at the front and rear positions so that a predetermined sinking amount is generated by a stepping pressure of a person. A first actuating mechanism for converting a vertical movement amount of the tread plate into a predetermined rotation angle, rotating the first arm according to the rotation angle, and linking the tip end of the first arm to be rotated And a lever mechanism for expanding and outputting the amount of movement of the distal end portion, and a pulling wire linking the output side of the lever mechanism and the sliding door to pull in the opening direction of the sliding door. And

In the above lever mechanism, the stem of the lever is supported by a pin in a cantilever manner, a portion near the middle is linked to a tip end of the first arm by a linking wire, and a pulling wire is linked to a tip end on the output side. It is characterized by having the structure made to be.

Next, the automatic opening and closing sliding door device utilizing the stepping pressure further includes a second operating mechanism for converting the vertical movement amount of the tread plate into a predetermined rotation angle and rotating the second arm according to the rotation angle. In addition, the amount of movement of the distal end of the second arm due to the depression of the tread plate acts on the link wire to operate the lever mechanism.

[0015] It is preferable that elastic linking means be interposed in the linking wire between the distal end of the first arm and the lever mechanism. The first and second operating mechanisms are, for example, rotatably holding a camshaft holding a cam abutting on the back surface of the tread plate on the back surface side of the tread plate. The camshaft is rotated, and the rotation angle is transmitted to the rotation shaft of the arm by a transmission mechanism.

Further, the cam of the camshaft constituting the first operating mechanism is arranged closer to the sliding door than the cam of the camshaft constituting the second operating mechanism.

The moving urging force for moving the sliding door in the closing direction is, for example, (a) a suspension load linked to the sliding door via a pulley, or (b) an elastic winding means linked to the sliding door. , (C) due to a downward inclination toward the closing direction of the guide rail.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIGS. 1 and 2 are overall perspective views schematically showing the configuration of the present embodiment. FIG. 3 is a perspective view mainly showing a first operation mechanism of the present embodiment. FIG. It is the principal part perspective view which showed mainly the 2nd operation mechanism of the example. FIG. 5 is a sectional view taken along line AA of FIG. In the description of this specification, FIGS.
On the basis of, the front side of the entrance is referred to as “front side” and the rear side of the entrance is referred to as “facing side”.

The reference numeral 1 shown in the figure is opened by a sliding door 10,
Or, the sliding door 10 is a runner roller 1 that is rotatably supported at two locations at its upper end.
1 is configured to move along a guide rail 12 arranged above the entrance 1. A weight 1 attached to a wire 14 is provided on the door stop side 13 of the sliding door 10.
5 are arranged in a suspended manner via pulleys 16 and wires 1
The other end of 4 is connected to the upper end of the sliding door 10. Thus, the weight 15 functions as a moving urging force due to the suspended load, and moves the sliding door 10 along the guide rail 12 in the closing direction. Note that the closing speed at this time is set to an appropriate state by selecting the load amount of the weight 15.

At the position of the floor surface 2 on the front side and the opposite side of the sliding door 10 in the closed position, an appropriately shaped tread plate 20 is disposed substantially flush with the floor surface 2, and a predetermined amount (about 10-1
5 mm).

Reference numeral 3 denotes a first operating mechanism, which mainly comprises a cam shaft 30, a roller cam 31, a link bar 32, and a first arm 33 (refer mainly to FIG. 3). ).

The left and right camshafts 30 are arranged below the lower surface of the tread plate 20 so as to be parallel to each other, and extend from the vicinity of the front edge 20f of the tread plate 20 on the near side to the vicinity 20o of the opposite edge of the tread plate 20 on the other side. , And is rotatably supported by a bearing 34.

The front side 2 of the cam shaft 30
A roller cam 31 having a contact portion as a roller body is attached to each of the two positions and the opposite side. The roller cam 31 is laid on the rear surface 2 of the tread plate 20 in a state where the roller cam 31 is laid slightly counterclockwise from the vertical upper side as viewed from the front of the drawing.
It is arranged so as to be in contact with 0u, and this state is an initial state.

A link bar 32 is attached to the center of the camshaft 30, and the upper and lower link bars 32 are arranged by connecting the left and right camshafts 30, 30 to each other. One end is camshaft 30
Each of the link hooks 35 is provided with a pin (rotatably supported by a shaft) at each of the center portions of the link hooks 35, which are provided substantially vertically. The other end is connected to the trunk portion 33b of the first arm 33 with pins at two positions facing the rotation shaft.

In the initial state, the first arm 33 rises from the horizontal by a predetermined angle (about 30 to 60 degrees), and is set to rotate in the same direction and the same rotation angle as the camshaft 30. I have.

Reference numeral 4 denotes a lever mechanism. The straight-bar-shaped lever 40 is constituted such that the stem 40b is disposed on the retracted side (“door pocket side”) 17 of the sliding door 10 when the sliding door 10 is opened, and the distal end 40t rotates in an arc shape from the upper part to the lower part. Are supported by pins (supported so that the shaft can freely rotate). Near the middle of the lever 40, the first arm 33
Is connected via a tension spring 42 as elastic expansion / contraction means.

The tip 40t on the output side of the lever mechanism 4
, A pulling wire 5 is attached, and the other end of the pulling wire 5 is attached to an upper end of the sliding door 10 via a pulley 50 so as to pull the sliding door 10 in an opening direction.

Reference numeral 6 denotes a second operation mechanism, which is mainly composed of a cam shaft 60, a roller cam 61, a link bar 62, and a second arm 63 (refer mainly to FIG. 4). ).

The basic structure of the second operating mechanism 6 is the same as that of the first operating mechanism 3 except that the arrangement position of the camshaft 60 is different. That is, the camshaft 60
Are the two camshafts 30, 3 of the first operating mechanism 3.
0, and extends from the vicinity 20c of the entrance of the tread plate 20 on the near side to the vicinity 20c of the entrance of the tread plate 20 on the other side, and is rotatably supported by the bearing portion 64.

The camshaft 60 has one side
A roller cam 61 having a contact portion as a roller body is attached to each of the positions and one position on the opposite side. As in the case of the first operating mechanism 3, the roller cam 61 is laid down slightly counterclockwise from vertically above when viewed from the near side, and is in contact with the back surface 20u of the tread plate 20. This state is an initial state.

At the center of the camshaft 60, two upper and lower link bars 62, 62 are attached, and one end of the link bar 62 is set up substantially in the vertical direction of the center of the camshaft 60. It is pin-connected to the link hook 65,
The other end extends so as to straddle the left camshaft 30 toward the entrance, and is pin-connected to the stem 63b of the second arm 63 at two locations facing the rotation axis. Second arm 63
Is set to rotate in the same direction and the same rotation angle as the camshaft, is set to a predetermined angle (about 60 to 90 degrees) from horizontal in the initial state, and is attached to the tip end. The pulley 63p is set in a state of being engaged with the link wire 41 extending from the distal end 33t of the first arm 33.

[0032]

The operation of the present embodiment operates as follows. As shown in FIG. 5, first, a person who walks toward the sliding door 10 makes a first step 7a with respect to the tread plate 20.
When the player steps on the vicinity of the front edge 20f, the tread plate 20 sinks by a predetermined amount (about 10 to 15 mm) by the treading pressure (arrow a).

By this lowering operation, the first operating mechanism is operated (as shown in FIGS. 1 and 3), the roller cam 31 is pushed downward, and the camshaft 30 is rotated (arrow b). The rotation angle of 30 is determined by the linear movement (arrow c) of the upper and lower two link bars 32, 32 connected to the link hook 35, and the stem 33 of the first arm 33.
b, the first arm 33 pivots, and its tip 33t pivots downward in an arc (arrow d). Thereby, the linking wire 41 attached to the distal end portion 33t is pulled down (arrow e), and the lever 40 is moved to its trunk portion 40t.
It is rotated downward with b as the rotation axis (arrow f). At this time, the moving amount of the tip 40t of the lever 40 is
The lever ratio between the distance to the attachment position of the linking wire 41 and the distance to the attachment position of the pulling wire 5 with respect to 0b is larger than the amount by which the linking wire 41 is lowered.

The movement of the front end portion 40t causes the sliding door 10 to be pulled into the door pocket side 17 via the pulling wire 5 to move, thereby opening the entrance 1 (arrow D).
1). Usually, the first operating mechanism is easily operated with a small stepping pressure (for example, normal stepping by a child), but when the first arm is turned until it is horizontal,
Usually, the sliding door 10 is set to be in a half-open state (a state shown by a two-dot chain line in FIG. 1).

Further, when an impressive stepping pressure is applied due to a strong stepping on the tread plate or the like, the first arm 33 is rapidly rotated. It does not reach the lever 40.

Next, when the operator steps on the vicinity 20c of the entrance and exit of the tread plate 20 at the second step 7b (see FIG. 5), the tread plate 20 near the entrance and exit 20c sinks down due to the stepping pressure (arrow g), and the second operation mechanism Operates. That is, as shown in FIGS.
The tread plate 20 pushes down the roller cam 61 to rotate the camshaft 60 (arrow h). The rotation of the camshaft 60 is caused by the two upper and lower link bars 62, 62 connected to the link hook 65 facing each other. It is transmitted to the stem 63b of the second arm 63 from the linear movement (arrow i),
The second arm 63 is rotated downward (arrow j).

As a result, the pulley 63p of the distal end portion 63t engaged in the middle of the linking wire 41 rotates downward on the circular arc and pulls the linking wire 41 further downward (arrow k), and the lever Reference numeral 40 turns further downward, and the tip portion 40t pulls in the pulling wire 5 (arrow 1), and the sliding door 10 is completely drawn into the door pocket side 17 (arrow D2, a state shown by a solid line in FIG. 2). ).

Finally, the pedestrian leaves the doorway 1 and the stepping pressure on the tread plate 20 is released, and the first arm 33 and the second
When the rotational force acting on the arm 63 is also released, the gravity of the suspended weight 15 is transmitted to the sliding door 10 via the wire 14 and the pulley 16, and the sliding door 10 is closed in the closing direction (door stop side 13). To be closed.

If the tread plate 5 stops operating for any reason, the force for closing the sliding door 10 is reduced by the weight 15
The sliding door 10 can be easily manually opened because there is no other obstruction mechanism only by the gravity. When the hand is released, the weight 15 is automatically closed.

Although the above operation has been described with reference to the case where the pedestrian moves from the near side to the far side, the same operation is performed when the pedestrian moves from the far side to the near side.

[0041]

[Possibility of Modification to Another Embodiment] The present invention is not limited to the above embodiment, but may be modified to, for example, the following configuration examples. (A) In the present embodiment, only one sliding door 10 is used. However, a combination of two, three sliding doors may be used. Further, the moving biasing force for moving the sliding door 10 in the closing direction is based on the weight 15 as the suspension load, but in addition to the above, an elastic winding means (for example, a spiral spring) connected to the sliding door. Alternatively, the guide rail 12 may be provided with a downward inclination toward the closing direction. (B) In the present embodiment, the two camshafts 30 and 60 are only rotatably supported. However, when the stepping pressure on the tread plate 20 is released, the camshafts are returned to the initial state. A torsion bar or a return spring may be attached to 30, 60. The rotation starting forces of the two camshafts 30 and 60 are set differently, for example, such that the rotation of the camshaft 30 of the first operating mechanism 3 can be obtained with a smaller stepping pressure than that of the second operating mechanism 6. Is preferred. (C) In this embodiment, the rotation angles of the first and second operating mechanisms 3 and 6 are transmitted by the link bars 32 and 62. In addition, a link chain or a timing belt may be used. It may be. (2) Further, in this embodiment, the arms 33 and 63 of the first and second operating mechanisms and the lever mechanism 4 are connected to the door pocket side 17.
However, when there is room in the space, the door may be arranged on the door stop side.

[0042]

[Effect] Since the present invention is configured as described above,
The sliding door can be quickly moved in the opening direction in response to the stepping operation of the tread plate. Further, when the sliding door is moved in the closing direction, since a moving urging force is applied, there is no need to apply an external force for closing the sliding door.

Further, since the amount of settling of the tread is expanded by the lever mechanism, the moving amount can be greatly expanded by a simple mechanism having a smaller number of parts than the conventional combination of large and small pulleys. In addition, the reliability and reliability of operation can be improved.

Furthermore, since the weight of the lever itself is also taken into account when balancing the lever mechanism, there is no pulley capable of generating a large traction force by adding the lever's own weight by a slight pulling force of the linking wire. Has a remarkable effect. Therefore, even a small stepping pressure (for example, about 10 kg) of a child or the like can be released to each person. On the other hand, depending on the setting of the lever ratio, it is possible to prevent the operation with the stepping pressure of small animals such as dogs and cats (for example, 2 to 5 kg suitable), and the advantage that the appropriate setting of the opening operation can be performed. is there.

Furthermore, when the first operation mechanism and the second operation mechanism are respectively disposed and the vehicle passes through the tread while walking, the opening operation is first started at a distance from the entrance and then immediately before the entrance. By the way, since the two-stage opening operation of completely opening is performed, it is possible to realize a smooth opening and closing operation according to the movement of the person without stopping at the entrance.

As described above, the present invention provides an epoch-making automatic opening / closing sliding door device utilizing a stepping pressure which has a remarkable effect by adopting an unprecedented configuration.

[Brief description of the drawings]

FIG. 1 is an overall perspective view schematically showing the configuration of the present embodiment.

FIG. 2 is an overall perspective view schematically showing the configuration of the present embodiment.

FIG. 3 is an essential part perspective view mainly showing a first operation mechanism of the embodiment.

FIG. 4 is an essential part perspective view mainly showing a second operation mechanism of the embodiment.

FIG. 5 is a sectional view taken along line AA of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Entrance 10 Sliding door 11 Runner roller 12 Guide rail 13 Door contact side 14 Wire 15 Weight 16 Pulley 17 Door pocket side 2 Floor surface 20 Tread plate 20c Near entrance / exit 20f Near front edge 20o Facing edge 20u Back surface 3u 1st operation mechanism 30 camshaft 31 roller cam 32 Link Bar 33 First Arm 33b Trunk 33t Tip 34 Bearing 35 Link Hook 4 Lever Mechanism 40 Lever 40b Trunk 40t Tip 41 41 Linking Wire 42 Tension Spring 5 Traction Wire 50 Pulley 6 Second Operating Mechanism 60 Camshaft 61 Roller Cam 62 Link bar 63 Second arm 63b Trunk 63t Tip 63p Pulley 64 Bearing 65 Link hook 7a First step (for passers-by) 7b Second step (for passers-on)

Claims (7)

[Claims] 1. A sliding door which is supported so as to be openable and closable and to which a moving urging force is applied in a closing direction, and which is disposed on a floor surface at a position before and after the sliding door which is in a closed position, and wherein a predetermined amount of subsidence is caused by a stepping pressure of a person. A first operating mechanism configured to convert a vertical movement amount of the tread plate into a predetermined rotation angle and rotate the first arm according to the rotation angle; and a tip of the first arm that rotates. A lever mechanism that is linked with the section and outputs the enlarged movement amount of the distal end portion, and a pulling wire that links the output side of the lever mechanism and the sliding door to pull in the opening direction of the sliding door. An automatic opening / closing sliding door device utilizing the stepping pressure. 2. A lever mechanism, wherein a stem portion of a lever is pin-supported in a cantilever manner, an intermediate portion is linked to a tip end of the first arm by a linking wire, and a pulling wire is linked to a tip end on an output side. The automatic opening / closing sliding door device utilizing a stepping pressure according to claim 1, wherein the sliding door device has a bent structure. 3. The automatic opening / closing sliding door device utilizing the stepping pressure according to claim 2, further comprising: converting a vertical movement amount of the tread plate into a predetermined rotation angle;
A second operating mechanism for rotating the second arm according to the rotation angle is added, and the amount of movement of the tip of the second arm due to the depression of the tread plate acts on the linking wire to operate the lever mechanism. An automatic opening / closing sliding door device utilizing stepping pressure. 4. The linking wire between the distal end of the first arm and the lever mechanism, wherein an elastic expansion / contraction means is interposed.
2. The automatic opening / closing sliding door device utilizing the stepping pressure described in 2 or 3. 5. In the first and second operating mechanisms, a cam shaft holding a cam abutting on the back surface of the tread plate is rotatably held on the back surface side of the tread plate, and the depression of the tread plate is performed via the cam. 5. The automatic opening / closing sliding door device according to claim 1, wherein the camshaft is rotated, and the rotation angle is transmitted to a rotation shaft of the arm by a transmission mechanism. 6. The cam of the camshaft constituting the first operating mechanism is arranged closer to the sliding door than the cam of the camshaft constituting the second operating mechanism, on the front side of the back surface of the tread plate. 5. The automatic opening / closing sliding door device utilizing the stepping pressure described in 5. 7. A moving biasing force for moving the sliding door in the closing direction, the pulling force being linked to the sliding door via a pulley, the elastic winding means linked to the sliding door, or the guide rail closing direction. 7. The automatic opening / closing sliding door device using the stepping pressure according to claim 1, wherein the sliding door device is one of a descending slope toward the bottom.