JP6195588B2 - Home fence - Google Patents

Description

  The present invention relates to a platform fence installed in a station platform.

  There is known a platform fence that is installed at the end of the station platform on the track side and that opens and closes at the timing of getting on and off the vehicle. The home fence employs a mechanism that locks the door when it is fully closed so that it cannot be opened intentionally.

  For example, Patent Document 1 discloses a waist-high type home fence provided with an electromagnetic lock. That is, a structure is described in which when a door is closed, an electromagnetic coil is excited and a lock pin is inserted into a lock of a door hanger to lock the door so that a passenger cannot intentionally open the door.

  Patent Document 2 discloses a full-screen type home fence provided with a mechanical locking mechanism. That is, the door drive mechanism is provided so as to straddle between the left and right doors of the full-screen sliding door type. A locking member is provided at the upper end of one door and a movable member having a claw that engages with the locking portion is provided at the upper end of the other door, and the movable member is moved by the door drive mechanism to be locked. The structure which locks doors by engaging with a part is described.

JP 2001-164833 A JP 2006-45888 A

  The home fence disclosed in Patent Document 1 requires a drive source different from the door drive source for the electromagnetic lock, and a sensor for detecting the operation state of the electromagnetic lock. For this reason, it is necessary to periodically inspect and replace the electrical components, and there is a problem that a lot of time and labor are required for maintenance.

  Since the home fence disclosed in Patent Document 2 is a mechanical locking mechanism, the electric parts as in Patent Document 1 are not used. However, since the technology of Patent Document 2 is based on a full-screen type home fence, a door drive system mechanism is installed above the doors so as to straddle the left and right doors. For this reason, for example, application to a waist-high type home fence is difficult. In addition, since the claw part of the movable member protrudes from the protruding end of the door, there is a risk that the passenger may get caught when passing through the home fence.

  The present invention was devised based on this background, and aims to realize a new home fence with a mechanical locking mechanism that can be applied to both a waist-high type and a full-screen type. And

  1st invention for solving the said subject is a sliding door type home fence which opens and closes by moving a door part to right and left, Comprising: The cyclic | annular cord-like body stretched in the movement direction of the said door part, , An action portion (for example, a portion provided on a predetermined portion of the cord-like body and reaching a first pulley (for example, the driven pulley 104 in FIG. 2) on the door-end side on which the cord-like body is hung when fully closed. 2, and a door storage section (for example, the door storage section of FIG. 2) having a drive mechanism section (for example, the drive mechanism section 10 of FIG. 2) that drives the cable body to rotate forward / reversely. 6) and the door part (for example, the door part 4 in FIG. 2) having an engaging part (for example, the engaging part 120 in FIG. 2) that engages with the action part, and the action part at the time of opening and closing Is engaged with the engaging portion and moved to move the door portion, and with respect to the door portion when fully closed When an external force in the direction is applied, the external force is supported by the first pulley through the engagement portion and the action portion, thereby preventing the door portion from moving in the opening direction. It is a home fence.

  According to a second aspect of the present invention, the action portion has a roller (for example, the roller 111 in FIG. 2), and the engagement portion has a cam portion (for example, the cam portion 121 in FIG. 2) that rolls the roller. And the predetermined part of the cord-like body is the home fence according to the first aspect of the invention, which is a part that becomes a door-end side position of the roller when fully closed.

  According to a third aspect of the present invention, there is provided a first cam surface (for example, the first cam surface 122 in FIG. 2) in which the cam portion receives a driving force via the roller when the door portion is moved by driving the drive mechanism portion. A second cam surface following the first cam surface, the second cam being along the movement path of the roller when the predetermined portion of the cord-like body moves along the peripheral portion of the first pulley And a surface fence (for example, the second cam surface 123 of FIG. 2).

  According to a fourth aspect of the present invention, the operating portion includes a rod (for example, the interlocking rod 130 in FIG. 11) in which the roller is provided at one end and the other end is connected to the predetermined portion, and the engaging portion Is the home fence according to the second or third aspect of the invention that engages at a position away from the predetermined portion by the length of the rod.

  According to a fifth aspect of the present invention, there is provided a length of the cord-like body and a second pulley (for example, the driving pulley 103 in FIGS. 9 and 10) on the door-end side on which the first pulley and the cord-like body are hung. The positional relationship is such that the predetermined part is positioned to reach the second pulley when fully open, and when the external force is applied to the door portion in the closing direction when fully open, the external force is The door fence according to any one of the first to fourth inventions is characterized in that movement in the closing direction of the door part is prevented by being supported by the second pulley through the part and the action part.

  According to a sixth aspect of the invention, the door storage portion includes a guide portion (for example, a guide portion 170 in FIG. 14) for guiding the movement of the action portion along the movement path of the predetermined portion. It is a home fence of either invention.

  According to the 1st-4th invention, locking / unlocking can be performed with the driving force which opens and closes a door part. It is not necessary to equip a separate power source, power unit, and control device for locking, thereby reducing the manufacturing cost and the operating cost for checking and maintaining the electrical components for locking. Further, since the locking mechanism itself is built in a single home fence and operates inside, the movable member or the like of the locking mechanism does not protrude from the protruding end of the door. Therefore, it is possible to realize a new home fence equipped with a mechanical locking mechanism that can be applied to any type, whether full-screen type or waist-high type.

  According to the fifth aspect, locking / unlocking can be performed in both the fully closed state and the fully open state.

  According to the sixth aspect of the invention, smooth locking / unlocking can be supported by suppressing the relative position change and the relative posture change between the engaging portion and the action portion during the opening / closing operation.

The front view which shows the example of an external appearance which looked at the platform fence of 1st Embodiment from the platform side. Sectional drawing seen from the track | orbit side which shows the internal structural example of the home fence of the fully closed state in 1st Embodiment. Sectional drawing seen from the door-end side which shows the example of an internal structure of the home fence of the fully closed state in 1st Embodiment. The perspective view which shows the structural example of an action part. The figure for demonstrating the operation | movement from the fully closed state of the platform fence of 1st Embodiment to a fully open state (the 1). The figure for demonstrating the operation | movement from the fully closed state of the platform fence of 1st Embodiment to a fully open state (the 2). The figure for demonstrating the operation | movement from the fully-closed state of the platform fence of 1st Embodiment to a fully-open state (the 3). The state transition diagram around the driven pulley during the operation from the fully open state to the fully closed state in the first embodiment. Sectional drawing seen from the track | orbit side which shows the structural example of the home fence of a fully closed state in 2nd Embodiment. Sectional drawing seen from the track | orbit side which shows the structural example of the home fence of the fully open state in 2nd Embodiment. Sectional drawing seen from the track | orbit side which shows the structural example in the 1st modification of a home fence. Sectional drawing seen from the door-end side which shows the structural example in the 1st modification of a home fence. Sectional drawing seen from the track | orbit side which shows the structural example in the 2nd modification of a home fence. Sectional drawing seen from the track | orbit side around a driven pulley which shows the modification of an engaging part.

[First Embodiment]
FIG. 1 is a front view showing an example of an external appearance of the home fence of the first embodiment as viewed from the platform side. Two home fences 2 (2R, 2L) having a bilaterally symmetric structure are connected to each other's door portion 4. This is an example in which the front end (door tip) is arranged to face each other so as to be able to be matched. FIG. 1 (1) shows a fully closed state, and FIG. 1 (2) shows a fully opened state.

  Hereinafter, the left home fence 2 (2L) will be described as a representative, and the description of the right home fence 2 (2R) will be omitted. In order to facilitate understanding, the door drive system configuration and the locking system configuration will be explained mainly for the purpose of detecting electrical parts such as electric wires and power supply devices, passengers' remaining detection and leaning. The illustration and explanation of safety parts such as sensors, warning lights and warning speakers are omitted.

  In the description, the direction in which the door 4 is advanced from the door storage 6 to close the opening is “door” and “front”, and the door 4 is stored in the door storage 6 to open the opening. Will be described as “Tojiri” and “Back”.

FIG. 2 is a cross-sectional view seen from the track side showing an example of the internal structure of the home fence 2 (2L) of the present embodiment in the fully closed state. FIG. 3 is a cross-sectional view of the home fence as viewed from the door end side.
As shown in FIG. 2, the platform fence 2 (2L) supports the door portion 4 so as to be slidable in the lateral direction inside the waist-height door storage portion 6 fixed to the upper surface of the end of the track on the station platform. And a drive mechanism 10 that moves the door 4 in the lateral direction, and a control board 15 that controls the drive mechanism 10 according to a control signal from the outside. That is, the home fence 2 (2L) is classified as a so-called waist-high type sliding door type home fence.

  The door part 4 is a plate-shaped body or a fence body. In the present embodiment, it is realized by a single panel material, but it may be realized in a form in which a window is provided or a cross or a vertical tree is assembled to a frame-like body.

  The door storage portion 6 is a box-like body having an opening 61 through which the door portion 4 is inserted on the door end side (left side in FIG. 2), and is fixed to the end of the station platform near the track.

  The slide mechanism 8 is appropriately realized by a known linear motion mechanism. In this embodiment, it is a linear motion mechanism in which the guide block 82 slides along the guide rail 81. One slide mechanism 8 is provided above and below the door storage 6, and the door 4 is fixed and supported by a guide block 82.

  The drive mechanism unit 10 includes a motor 101 that is driven and controlled by the control board 15, a deceleration mechanism unit 102 that decelerates rotation of the motor shaft output, a drive pulley 103 that is fixed to the output shaft of the deceleration mechanism unit 102, and a drive A driven pulley 104 installed closer to the door-end than the pulley 103, an annular cable 105 extending between the drive pulley 103 and the driven pulley 104, and an action part 110 fixed to the cable And an engaging portion 120 that engages with the action portion 110.

  Specifically, the motor 101 and the speed reduction mechanism unit 102 are integrally configured and installed on the door bottom side (right side in FIG. 2) of the door storage unit 6, and the drive pulley 103 is “home to track direction”. The door storage unit 6 rotates on a horizontal axis in the thickness direction. Sensors such as limit switches used for stop control of the motor 101 can be provided as appropriate. Further, by using a motor with a brake or a servo motor as the motor 101, the stop accuracy can be increased. Further, a speed reduction mechanism unit may be provided between the motor 101 and the drive pulley 103 as appropriate.

  The driven pulley 104 is pivoted by a rotating shaft that protrudes from the inner surface on the track side of the door storage portion 6 (the track side member is not shown in FIG. 2 for cross-section display) toward the home side. It is supported.

The cord-like body 105 is a long linear body such as a wire, rope, chain, or belt.
The cord-like body 105 of this embodiment is realized by an annular endless toothed belt, and is stretched between the drive pulley 103 and the driven pulley 104, that is, in a loop shape in the moving direction of the door portion 4. As shown in FIG. 3, the position where the cord-like body 105 is stretched is closer to the track side than the door portion 4 and the slide mechanism 8.

  Note that a tensioner for appropriately maintaining the tension of the cord-like body 105 can be appropriately added to the drive mechanism unit 10.

FIG. 4 is a perspective view illustrating a configuration example of the action unit 110.
The action part 110 engages with the engagement part 120 fixed to the door part 4 to move the door part 4 in the opening / closing direction along with the forward / reverse driving of the drive mechanism part 10.

  The working part 110 of this embodiment is screwed to a roller 111 that engages with the engaging part 120, and an attachment 112 that has one end serving as a rotating shaft of the roller and the other end fixed to a predetermined position of the cord 105. Rod portion 113.

  The attachment 112 is fixed to a predetermined position located on the door-end side of the driven pulley 104, more specifically, directly on the door-end side of the rotation shaft of the driven pulley 104 when fully closed.

  The rod part 113 is fixed to the attachment 112 in a relative positional relationship in which one end projects perpendicularly or substantially perpendicularly to the home direction (door part 4 side) with respect to the cord-like body 105. That is, the roller 111 is in a state of being pivotally supported by a horizontal rotation shaft along the trajectory to the home direction orthogonal or substantially orthogonal to the moving direction of the door portion 4, and the rolling surface of the roller 111 is positioned at the position of the attachment 112. Therefore, the length of one end side of the rod portion 113 is offset from the stretched surface of the cord-like body 105 to the door portion 4 side.

Returning to FIG. 2, the engaging portion 120 has a cam portion 121 that comes into contact with the rolling surface of the roller 111 of the action portion 110, and is fixed to the track-side side surface of the door portion 4 near the door bottom.
The cam portion 121 of the present embodiment includes a first cam surface 122 that receives a driving force via the roller 111 when the door portion 4 is moved by driving of the driving mechanism portion 10, and the action portion 110 along the peripheral portion of the driven pulley 104. And a second cam surface 123 along the movement path of the roller 111 when moving.

  More specifically, the first cam surface 122 has a vertical or substantially vertical surface that contacts the roller 111 on the door end side. The second cam surface 123 starts from the end of the first cam surface 122 on the door-end side, and moves along an outer edge locus of the rolling surface of the roller 111 when moving along at least the periphery of the driven pulley 104 from directly above. Draw the same arc as.

  Next, the operation of the home fence 2 (2L) from the fully closed state to the fully open state in the present embodiment will be described with reference to FIG. 2 and FIGS.

  When in the fully closed state, the home fence 2 (2L) is in the state shown in FIG. The roller 111 of the action unit 110 is located just beside or substantially beside the door tip side of the rotation shaft of the driven pulley 104. Even if an external force (an external force in the right direction in FIG. 2) acts on the door portion 4 in the direction in which the door portion 4 is opened, the external force is transmitted from the engaging portion 120 to the roller 111 and from the roller 111 to the rod. Is transmitted to the driven pulley 104 via the section 113 and the attachment 112 (and sandwiching the cord-like body 105), and the rotating shaft of the driven pulley 104, more specifically, the fixed portion between the rotating shaft and the door storage portion 6 is transmitted. Received by. Therefore, the door part 4 cannot be opened. That is, it can be said that the roller 111 is in the locking position.

To open the home fence 2 (2L) from the fully closed state, the control board 15 starts door opening operation control for controlling the motor 101 so that the driving pulley 103 rotates clockwise.
Then, as shown in FIG. 5, the driven pulley 104 and the cord-like body 105 also start to rotate clockwise. At this time, the roller 111 of the action portion 110 gradually approaches the driven pulley 104 while rolling along the second cam surface 123 of the engagement portion 120. At this stage, no force is transmitted from the action part 110 to the engagement part 120 due to the idle rotation of the roller 111. The driving force of the drive mechanism unit 10 is not transmitted to the door unit 4 and the door unit 4 does not move.

  Eventually, as shown in FIG. 6, when the roller 111 of the action part 110 comes into contact with the first cam surface 122 of the engaging part 120, the driving force of the driving mechanism part 10 starts to be transmitted to the door part 4. From here, the door part 4 starts to move in the door bottom direction and begins to be housed inside the door housing part 6 as shown in FIG.

  The control board 15 stops the motor 101 when the cumulative rotation angle from the start of the door opening operation of the motor 101 reaches a predetermined value necessary for the door unit 4 to be stored in the door storage unit 6. As a result, the home fence 2 (2L) is fully opened as shown in FIG.

Next, the operation from the fully open state to the fully closed state will be described.
FIG. 8 is a state transition diagram of the driven pulley 104 and its surroundings during the operation from the fully open state to the fully closed state in the present embodiment.
As shown in FIG. 8A, when the control board 15 receives a predetermined signal for closing the home fence 2 (2L) from the external device, the drive pulley 103 and the driven pulley 104 are referred to in FIGS. The door closing operation control for controlling the motor 101 so as to rotate counterclockwise is started. Then, the cord-like body 105 also starts to rotate counterclockwise, and the roller 111 of the action portion 110 moves away from the door bottom side surface of the first cam surface 122 of the engaging portion 120, and immediately the door tip side surface of the first cam surface 122 ( Abuts the upper end of the second cam surface 123). Thereby, the drive force of the drive mechanism part 10 is transmitted to the door part 4, and the door part 4 starts a movement to a door-end direction.

  When the action part 110 eventually reaches the door end side of the driven pulley 104, the roller 111 of the action part 110 is moved from the door side surface of the first cam surface 122 as shown in FIGS. 8 (2) to 8 (3). It moves to the 2 cam surface 123, begins to fall along the 2nd cam surface 123. If it will be in this state, the power of the drive mechanism part 10 will almost not be transmitted to the door part 4, and the movement of the door part 4 will be in the state which stopped or almost stopped.

  Then, as shown in FIG. 8 (4), the control board 15 reaches the predetermined value required for the cumulative rotation angle from the start of the door closing operation to protrude the door part 4 from the door storage part 6 by a predetermined dimension. Then, the motor 101 is stopped. That is, the home fence 2 (2L) returns to the fully closed state shown in FIGS. 1A and 1B, and the roller 111 of the action unit 110 is in the locking position at the side or near the side of the door end of the rotation shaft of the driven pulley 104. It will be in a stopped state.

  As described above, according to the present embodiment, locking / unlocking can be performed with the driving force for opening and closing the door portion 4. It is not necessary to equip a separate power source, power unit, and control device for locking, thereby reducing the manufacturing cost and the operating cost for checking and maintaining the electrical components for locking. In addition, since the locking mechanism itself is built in the single home fence 2 (2L) and operates only inside, the movable member of the locking mechanism does not protrude from the protruding end of the door. A new home fence equipped with a mechanical locking mechanism that can be applied to any type, whether full size or waist high size, can be realized.

[Second Embodiment]
Next, a second embodiment to which the present invention is applied will be described.
This embodiment is basically realized in the same manner as the first embodiment, but is different in that it is locked even in the fully opened state. In the following, differences from the first embodiment will be mainly described, and the same components as those in the first embodiment will be denoted by the same reference numerals and redundant description will be omitted.

  FIG. 9 is a cross-sectional view seen from the track side showing a configuration example of the home fence 2 (2L) of the present embodiment, and shows a fully closed state. In the present embodiment, the motor 101, the speed reduction mechanism unit 102, and the drive pulley 103 are arranged so as not to interfere with the movement path of the door unit 4 on the track side surface of the door storage unit 6 closer to the door tip than in the first embodiment. is set up.

  And compared with 1st Embodiment, the cam part 121 of the engaging part 120B in this embodiment is the same as the place where the 2nd cam surface 123 is formed adjacent to the door-end side of the 1st cam surface 122. However, the second cam surface 123 and the symmetrical third cam surface 124 are different from each other adjacent to the door bottom side of the first cam surface 122.

  As shown in FIG. 9, the locking action by the action part 110 and the engagement part 120B in the fully closed state is the same as in the first embodiment.

  FIG. 10 is a cross-sectional view seen from the track side showing a configuration example of the home fence 2 (2L) of the present embodiment and shows a fully opened state. The length of the cord-like body 105 and the positional relationship between the driving pulley 103 and the driven pulley 104 according to the present embodiment are configured such that the action part 110 reaches the side of the door bottom side of the driving pulley 103 or substantially the side of the driving pulley 103 in the fully opened state. ing. Therefore, even if an external force in the closing direction (door direction) is applied to the door portion 4 in the fully open state (for example, even if a force that pulls out the door portion 4 is applied), the external force is It is supported by the drive pulley 103 through the engaging part 120B and the action part 110. In other words, a locking action that prevents the door portion 4 from moving in the closing direction works.

  Since the operation from the fully open state to the fully closed state and the operation from the fully closed state to the fully open state are the same as those in the first embodiment, the description thereof is omitted.

[Modification]
As mentioned above, although embodiment which applied this invention was described, embodiment of this invention is not restricted to these, A component can be added, changed and abbreviate | omitted suitably.

[Part 1]
For example, in the above-described embodiment, the action unit 110 is configured to directly contact the engaging units 120 and 120B, but may be configured to engage indirectly.
Specifically, if the second embodiment is used as a base, a configuration in which an interlocking rod 130 is added between the action portion 110 and the engagement portion 120B as shown in FIGS. 11 and 12 is also possible. That is, the interlock rod 130 has a roller 131 that has a lower end abutting on the roller 111 of the action portion 110 and that engages with the cam portion 121 of the engagement portion 120 at the tip, and a guide pin 132 that protrudes toward the track at the intermediate portion. Is provided. The guide pin 132 is loosely fitted in the guide groove 134 of the rod guide 133 mounted on the track side surface of the door portion 4. The guide groove 134 forms a substantially ¼ arc simulating the movement locus of the roller 111 as viewed from the track side. Therefore, when the position of the roller 111 of the action part 110 changes, the position of the connecting rod 130 changes while maintaining the posture shown in the figure by the engagement between the guide pin 132 and the guide groove 134. Therefore, the positional change of the roller 111 is traced to the roller 131, and the same effect as in the second embodiment is exhibited. Of course, the interlocking rod 130 can also be applied to the first embodiment.

[Part 2]
In the above embodiment, the engaging portions 120 and 120B are separate members from the door portion 4 and are mounted on the raceway side surface. However, as shown in FIG. If the cam portion 121 is configured by lacking, the engaging portions 120 and 120B can be omitted.

  In the above embodiment, the second cam surface 123 is configured to draw a curve when viewed from the track side (or the home side). However, as shown in FIG. It is good. The second cam surface 123 in this case can also be referred to as a cam surface along the movement path when the action part 110 moves along the peripheral part of the driven pulley 104.

  In addition, a guide part 170 that guides smooth movement along the movement path of the action part 110 between the driving pulley 103 and the driven pulley 104 can be added. Specifically, as shown in FIG. 14, along the lower surface of the upper line of the cord-like body 105, the track of the door storage portion 6 from the door bottom side of the driven pulley 104 to the position where the action portion 110 is fully opened. A plate is projected from the side surface to the home side. Since the roller 111 is offset from the tension line of the cord-like body 105, when the action portion 110 moves away from the driven pulley 104 and moves to the door butt side, the cord-like body 105 is twisted around the attachment position of the action portion 110. The shaft of the roller 111 falls. However, the guide unit 170 supports the lower surface of the cord-like body 105, whereby the twist of the cord-like body 105 is suppressed and the shaft of the roller 111 can be prevented from falling. Note that the guide portion 170 is not limited to a plate material, and may be realized by a roller conveyor structure. The addition of the guide unit 170 can be similarly applied to any of the above-described embodiments and modifications.

DESCRIPTION OF SYMBOLS 2 ... Home fence 4 ... Door part 6 ... Door storage part 8 ... Slide mechanism 81 ... Guide rail 82 ... Guide block 10 ... Drive mechanism part 101 ... Motor 102 ... Deceleration mechanism part 103 ... Drive pulley 104 ... Drive pulley 105 ... Cable shape Body 110 ... action part
111 ... Laura
112 ... Attachment
113 ... Rod part 120 ... Engagement part
121 ... Cam part
122 ... 1st cam surface
123 ... the second cam surface
124 ... Third cam surface 15 ... Control board 130 ... Interlocking rod 131 ... Roller 133 ... Rod guide 170 ... Guide part

Claims (6)

It is a sliding door type home fence that opens and closes by moving the door part left and right,
An annular cable-like body stretched in the moving direction of the door portion, and a predetermined part of the cable-like body that reaches the first pulley on the door end side on which the cable-like body is hung when fully closed A door storage portion having an action portion provided and a drive mechanism portion for driving the cable-like body to rotate forward / reversely;
The door portion having an engaging portion that engages with the action portion;
When the door is moved by engaging and moving the engaging portion with the engaging portion during opening and closing, and an external force in the opening direction is applied to the door portion when fully closed, A movement of the door portion in the opening direction is prevented by an external force being supported by the first pulley through the engagement portion and the action portion. The action part has a roller,
The engaging portion has a cam portion for rolling the roller,
The predetermined portion of the cord-like body is a portion that becomes a door-end side position of the roller when fully closed.
The home fence according to claim 1. The cam portion is
A first cam surface that receives a driving force through the roller when the door portion is moved by driving the driving mechanism;
A second cam surface following the first cam surface, the second cam surface being along a movement path of the roller when the predetermined portion of the cord-like body moves along a peripheral portion of the first pulley. When,
The home fence according to claim 2 having. The action part has a rod provided with the roller at one end and the other end connected to the predetermined part,
The engagement portion engages at a position away from the predetermined portion by the length of the rod.
The home fence according to claim 2 or 3. The length of the cord-like body and the positional relationship between the first pulley and the second pulley on the door butt on which the cord-like body is hung are such that the predetermined portion reaches the second pulley when fully opened. Configured to be
When an external force in the closing direction is applied to the door portion when fully opened, the external force is supported by the second pulley through the engagement portion and the action portion, so that the door portion moves in the closing direction. The platform fence according to any one of claims 1 to 4, characterized in that is prevented. The door storage portion includes a guide portion that guides the movement of the action portion along the movement path of the predetermined portion.
The home fence as described in any one of Claims 1-5.

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