JP2016068910A - Gate device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gate device 1 capable of maintaining a function for blocking a passage during normal application time, and even when a crossbar 5 contacts a passerby, preventing giving impact to the passerby.SOLUTION: A gate device comprises: a crossbar 5 bridged over a passage; stationary poles 3 for lifting up and down the crossbar 5 for opening and closing the passage; lifting poles 4 coupled to the stationary poles 3 and lifted up and down; and a joint 7 for coupling the crossbar 5 to the lifting pole 4 on at least one end of the crossbar 5. The joint 7 has a connection release mechanism for releasing connection of the crossbar 5 and the lifting pole 4 when external force larger than a threshold is applied to the crossbar 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a gate device that opens and closes a passage by raising and lowering a crosspiece spanned over the passage.

  In recent years, safety fences for railway station platforms are becoming popular. The safety fence is a kind of chest wall that prevents a passenger from falling or falling, and includes a movable door device at a position corresponding to the entrance / exit of the railway vehicle. The movable door device for a platform is generally a sliding door type that includes a door pocket fixed to the platform and a door body that freely slides with respect to the door pocket, and accommodates the door body in the door pocket when the door is opened.

  For example, at a terminal station where vehicles arrive from a number of line zones, vehicles with different numbers and arrangements of passenger doors enter the same platform. In this case, a movable door device having a wide passage width that can be applied to all types of vehicles is required. However, the sliding door type movable door device includes a door pocket, and therefore there is a limit to the expansion of the passage width.

  In view of this, an elevating gate device has been proposed that raises and lowers a rung spanned over a passage to open and close the passage. Since the elevating gate device does not have a door pocket, the passage width can be set wide. On the other hand, in the lift-type gate device, a measure is required to avoid contact between the crosspiece and the passenger when the passenger gets into the aisle during the vertical movement of the crosspiece. Therefore, the elevating type gate device described in Patent Literatures 1 and 2 includes a sensor that detects passengers in the passage, and stops the raising and lowering of the cross when the sensor detects passengers. .

JP 2004-322823 A JP 2011-173854 A

  In the gate devices described in Patent Literatures 1 and 2, when the sensor detects a passenger, the raising and lowering of the crossing is stopped, so that the contact between the crossing and the passenger is prevented in advance. In addition to this, if a structure that does not impact the passenger even if the rung is in contact with the passenger, the safety of the gate device can be further improved. In order not to give a shock to passengers, it is conceivable to make the crosspiece or the support structure of the crosspiece “flexible”, but the original function of the gate device, that is, the function of blocking the passage may be impaired.

  The present invention has been made in view of such circumstances, and a gate device that does not give a shock to a passer-by even if it contacts the passer-by while maintaining the function of blocking a passage. It is intended to be provided.

  In order to solve the above-described problems, a gate device according to the present invention includes a crosspiece spanned over a passage, a lift device that lifts and lowers the crosspiece to open and close the passage, a support member that is connected to the lift device and moves up and down, At least one end of the crossbar is provided with a joint for connecting the crosspiece to the support member, and the joint is provided with a connection release mechanism for releasing the connection between the crosspiece and the support member when an external force exceeding a threshold is applied to the crosspiece. It is.

  According to the present invention, when the external force applied to the crosspiece does not exceed the threshold value, the connection by the joint is maintained, and when the external force exceeds the threshold value, the connection by the joint is released. While maintaining the function of blocking the passage, in the unlikely event that the crossbars come into contact with the passerby, there is no impact on the passerby.

1 is an external view showing a configuration of a gate device according to Embodiment 1 of the present invention. It is explanatory drawing which shows the structure of the coupling which concerns on Embodiment 1 of this invention, Comprising: (a) is a front view, (b) is a top view, (c) is the cross section cut | disconnected by the AA line of (a) FIG. It is explanatory drawing which shows the effect | action of the coupling which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the effect | action of the coupling which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the effect | action of the gate apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the effect | action of the gate apparatus which concerns on Embodiment 1 of this invention. It is an external view which shows the structure of the gate apparatus which concerns on Embodiment 2 of this invention. It is an external view which shows the structure of the gate apparatus which concerns on Embodiment 3 of this invention. It is an external view which shows the structure of the cradle which concerns on Embodiment 4 of this invention. It is an external view which shows the structure of the coupling which concerns on the modification of this invention, Comprising: (a) is a front view, (b) is a top view. It is an external view which shows the structure of the coupling which concerns on another modification of this invention, Comprising: (a) is a front view, (b) is a top view. It is an external view which shows the structure of the coupling which concerns on another modification of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a gate device according to the present invention will be described in detail with reference to the drawings. In the drawings, the same or equivalent parts are denoted by the same reference numerals.

Embodiment 1 FIG.
FIG. 1 is an external view of a gate device 1 according to Embodiment 1 of the present invention. In FIG. 1, a gate device 1 is installed between a pair of fixed columns 3 fixed to a base 2 at intervals, a lift column 4 supported by each fixed column 3 and lifted and lowered, and two lift columns 4. It is provided with the handed crossing 5. The space between the two fixed pillars 3 is a passage where the gate device 1 is opened and closed. FIG. 1 shows a state where the crosspiece 5 is raised to the maximum height, that is, the passage is opened. Show. When the cross bar 5 is lowered to the position indicated by the broken line, the passage is closed. The base 2 is a place where the gate device 1 is installed, for example, a platform floor of a railway station. In the following description, an orthogonal coordinate system as shown in FIG. 1 is used. That is, the X axis is taken from left to right in the horizontal direction, the Y axis is taken from bottom to top in the vertical direction, and the Z axis is taken from the front to the back of the page.

  The fixed column 3 is an example of the elevating device of the present invention, and a mechanism for elevating the elevating column 4 is built in, but the mechanism is not particularly limited. A known mechanism such as a cylinder device, a feed screw device, or a mechanism using a belt or chain can be arbitrarily selected.

  The crossbar 5 is connected to the left lifting column 4 via the hinge 6 at the left end and to the right lifting column 4 via the joint 7 at the right end. The elevating column 4 corresponds to an example of a support member of the present invention. Since the crosspiece 5 is connected to the left lifting column 4 via the hinge 6, when the connection with the right lifting column 4 by the joint 7 is released, the crosspiece 5 rotates around the hinge 6 in the plane of the paper of FIG. 1. Move. Further, the joint 7 maintains the connection between the crossbar 5 and the lifting column 4 when there is no contact between the crosspiece 5 and the passerby. When the crosspiece 5 comes into contact with the passerby or the like while the crosspiece 5 is being lifted, 5 is provided with a connection release mechanism for releasing the connection between the lifting column 5 and the lifting column 4.

  Next, with reference to FIG. 2, the structure of the connection release mechanism with which the coupling 7 is provided is demonstrated. As shown in FIG. 2A, the joint 7 includes a male member 8 and a female member 9. The male member 8 is fixed to the crosspiece 5 and the female member 9 is fixed to the elevating column 4. Further, as shown in FIG. 2B, the female member 9 includes fork-like members 9a and 9b, and the male member 8 is disposed between the fork-like members 9a and 9b.

  As shown in FIG. 2C, the male member 8 has a cylindrical through hole 10 that passes from the upper surface (the surface facing the fork-like member 9a) to the lower surface (the surface facing the fork-like member 9b). Is formed. Two balls 11 having a diameter slightly smaller than the diameter of the through hole 10 are disposed in the through hole 10 with the spring 12 interposed therebetween. The spring 12 is a compression spring and urges the ball 11 in a direction to push it out of the through hole 10. A dish-shaped recess 13 is formed at a position facing the through hole 10 of the female member 9, and a part of the ball 11 protruding from the through hole 10 is fitted into the recess 13. Thus, the male member 8 and the female member 9 are connected by fitting the ball 11 projected from the through hole 10 with the urging force of the spring 12 into the recess 13. When the gate device 1 is operating normally, the state as shown in FIG. 2C is maintained, and the connection between the crossbar 5 and the lifting column 4 is maintained.

  Here, as shown in FIG. 2A, the operation of the connection release mechanism included in the joint 7 will be described on the assumption that an upward external force Fy is applied to the male member 8 in the Y-axis direction. The external force Fy is transmitted to the female member 9 through the ball 11. At this time, as shown in FIG. 3, the component force Fy2 of the external force Fy acts in a direction to push the ball 11 out of the recess 13. On the other hand, the biasing force generated by the spring 12 and the frictional force generated between the ball 11 and the recess 13 act in a direction to push the ball 11 back to the recess 13. Therefore, when the urging force and the frictional force are larger than the component force Fy2, the ball 11 stays in the recess 13 and the connection between the male member 8 and the female member 9 is maintained. When the component force Fy2 is larger than the urging force and the frictional force, the ball 11 is removed from the recess 13 and the connection between the male member 8 and the female member 9 is released.

  By selecting the spring constant of the spring 12, the shape of the recess 13, the surface roughness of the recess 13 and the ball 11, etc., the magnitude of the urging force and the frictional force is adjusted. The connection between the member 8 and the female member 9 is released. The adjustment of the magnitude of the urging force and the frictional force may be made by calculation or by experiment.

  Even if an external force in the Z-axis direction is applied to the joint 7, the joint 7 does not release the connection. For example, as shown in FIG. 2B, when an external force Fz is applied to the male member 8, the male member 8 is displaced in the Z-axis direction as shown in FIG. However, the male member 8 contacts the fork-like member 9a of the female member 9 and stops there. Moreover, since the ball | bowl 11 is urged | biased by the spring 12, the state fitted to the recess 13 of the fork-like members 9a and 9b is maintained. Therefore, for example, when the crosspiece 5 is lowered and the passage is closed, even if a passerby tries to pass the passage and pushes the crosspiece 5 in the Z-axis direction, the coupling state of the joint 7 is not released. .

  The operation of the gate device 1 will be described with reference to FIGS. FIG. 5 shows a case where the descending crossbar 5 comes into contact with the head of the passerby 14. At this time, since the crosspiece 5 receives an upward reaction force in the Y-axis direction from the passerby 14, when the reaction force exceeds a threshold value, the connection by the joint 7 is released, and the crosspiece 5 rotates around the hinge 6. . That is, the crossbar 5 moves to a position indicated by a broken line in FIG. Therefore, the passerby 14 is not shocked. The magnitude of the reaction force for releasing the connection by the joint 7, that is, the threshold value is selected within a range that can be accepted by the passerby 14.

  FIG. 6 shows a case in which the jaw of the passerby 14 contacts the horizontal bar 5 that is rising. At this time, the crosspiece 5 receives a downward reaction force in the Y-axis direction from the passerby 14, so when the reaction force exceeds a threshold value, the connection by the joint 7 is released, and the crosspiece 5 rotates around the hinge 6. Fall. That is, the crosspiece 5 moves to a position indicated by a broken line in FIG. Therefore, the passerby 14 is not shocked.

Embodiment 2. FIG.
The configuration of the gate device 1 is not limited to that shown in the first embodiment. For example, as shown in FIG. 7, joints 7 may be arranged at both left and right ends of the crosspiece 5, and both ends of the crosspiece 5 may be connected to the left and right lifting columns 4 via the joint 7.

Embodiment 3 FIG.
The crosspiece 5 may be divided into left and right and connected by a joint 7. For example, as shown in FIG. 8, a left rung 5L and a right rung 5R may be provided, and the left rung 5L and the right rung 5R may be connected by a joint 7. Note that the left end of the left crossbar 5L is connected to the left lifting column and the right end of the right crossbar 5R is connected to the right lifting column 4 via the hinge 6, respectively.

Embodiment 4 FIG.
The support mode of the other end of the crosspiece 5, that is, the end portion not connected to the joint 7, is not limited to the hinge support. Simple support may be used. For example, in the first or third embodiment, instead of the hinge 6, a cradle 15 as shown in FIG. 9 is fixed to the lifting column 4 and the other end of the crosspiece 5 is placed on the cradle 15. Anyway. When an upward external force is applied in the Y-axis direction to the crosspiece 5 placed on the cradle 15, the crosspiece 5 is lifted away from the cradle 15 in the Y-axis direction. When a downward external force is applied to the crosspiece 5 in the Y-axis direction, the crosspiece 5 rotates about the Z-axis and comes off the stand 15. That is, when the external force in the vertical direction is applied to the crosspiece 5, it is detached from the stand 15.

Modification of Joint The configuration of the joint 7 including the connection release mechanism is not limited to that shown in the first embodiment. For example, the arrangement of the ball 11, the spring 12, and the recess 13 may be reversed. In other words, the ball 11 and the spring 12 may be held on the female member 9 and the recess 13 may be formed on the male member 8.

  Further, the joint 7 is not limited to the one having the ball 11 and the spring 12. For example, as shown in FIG. 10, a bolt 16 may be screwed into one fork-like member 9b of the female member 9, and the male member 8 may be pressed against the other fork-like member 9a by the thrust of the bolt 16. . If comprised in this way, when the external force exceeding the maximum static frictional force between the male member 8 and the female member 9 will be added to the crosspiece 5, the male member 8 will start displacement with respect to the female member 9, and connection of both will eventually be carried out. Canceled.

  Instead of the bolt 16, the male member 8 and the female member 9 may be attracted to each other by magnetic force, and the connection state may be maintained by magnetic force and frictional force. For example, as shown in FIG. 11, magnets 17 and 18 may be fixed to male member 8 and female member 9, respectively, and both may be attracted by the magnetic force of magnets 17 and 18.

  Alternatively, when an external force exceeding the threshold is applied, the joint 7 may be broken and the connection by the joint 7 may be released. For example, as shown in FIG. 12, if the constricted portion 19 is formed in the central portion of the joint 7 and the notch 20 is formed on the outer edge on the opposite side of the constricted portion 19, when an external force exceeding the threshold is applied to the crosspiece 5, A crack is generated from the bottom of the notch 20, and the joint 7 is broken.

  As described above, according to each of the above embodiments, when the external force applied to the crosspiece 5 does not exceed the threshold value, the connection between the crosspiece 5 and the lifting column 4 by the joint 7 is maintained. Therefore, in such a case, the function of the gate device 1 blocking the passage is maintained. On the other hand, when an external force exceeding the threshold is applied to the crosspiece 5, the connection between the crosspiece 5 and the lifting column 4 by the joint 7 can be released. Therefore, even if the crossbar 5 contacts the passer-by 14, the passer-by 14 does not receive an impact.

  The above-described embodiments are examples of specific embodiments of the present invention, and do not delimit the technical scope of the present invention. The present invention can be freely modified, applied or improved within the scope of the technical idea described in the claims.

  Moreover, in each drawing, the crosspiece 5 was expressed as a simple rod-shaped member, but the crosspiece 5 is not limited to such a shape member. For example, in a front view (for example, FIG. 1), a plate-like member having a certain width may be used, or a ladder-like or lattice-like member combining a plurality of members may be used. In short, it is sufficient that the crosspiece 5 is stretched over the passage and can block the passage, and has sufficient strength and rigidity so as not to be easily deformed even when a passerby 14 or the like contacts. As long as that is the case, the shape, form and material of the crosspiece 5 can be freely selected.

  Moreover, although the elevating column 4 is illustrated as a specific example of the support member, the support member is not limited to the elevating column 4. For example, another member may be attached to the lifting column 4 and the member may function as a support member. Further, when the right crosspiece 5R and the left crosspiece 5L are connected by the joint 7 as in the third embodiment, the right crosspiece 5R and the left crosspiece 5L function as counterpart support members.

  In the present specification, the invention of a so-called platform door installed on the platform of a railway station has been described as an example of the prior art, but the application target of the present invention is not limited to the platform door. The gate device according to the present invention may be installed in, for example, a commercial facility or an entertainment facility. That is, the technical scope of the present invention is not limited depending on the installation location.

1 Gate device, 2 base, 3 fixed column, 4 lifting column, 5 cross, 6 hinge, 7
Joint, 8 Male member, 9 Female member, 9a, 9b Fork-shaped member, 10 Through hole, 11 Ball, 12 Spring, 13 Recess, 14 Passer, 15 Stand, 16 Bolt, 17, 18 Magnet, 19 Constricted part 20 notches

Claims (11)

A crossbar that runs over the aisle,
A lifting device that lifts and lowers the crossbar to open and close the passage;
A support member that is connected to the lifting device to move up and down;
At least at one end of the crossbar, provided with a joint that connects the crossbar to the support member,
The joint includes a connection release mechanism that releases the connection between the crosspiece and the support member when an external force exceeding a threshold is applied to the crosspiece. The gate device according to claim 1, wherein the connection release mechanism releases the connection between the crosspiece and the support member when an external force in the vertical direction is applied to the crosspiece. One end of the crossbar is connected to the support member via the joint,
The gate device according to claim 1, wherein the other end of the crosspiece is connected to another support member via a hinge. The crossbar is provided with the joint at both ends,
The gate device according to claim 1, wherein the crossbar is connected to the support members at both ends via the joints. One end of the crossbar is connected to the support member via the joint,
The gate device according to claim 1, wherein the other end of the cross bar is simply supported by another support member. The gate device according to claim 1, wherein the support member is another cross bar. The rung is
It consists of a left rung and a right rung connected to each other via the joint,
The left end of the left crossbar is connected to a support member via a hinge,
The gate device according to claim 6, wherein a right end of the right crossbar is connected to another support member via a hinge. The joint is
A male member connected to the rung;
With a female member connected to the support member,
The decoupling mechanism is
A ball held in one of the male member and the female member so as to freely advance and retract;
A recess formed in the other of the male member or the female member;
The gate according to claim 1, further comprising a spring element that is held by the one of the male member and the female member and biases the ball in a direction in which the ball fits into the recess. apparatus. The joint is
A male member connected to the rung;
With a female member connected to the support member,
The decoupling mechanism is
The screw element which is screwed into one of the male member or the female member and presses the other of the male member or the female member against the one with the thrust thereof. The gate device described. The joint is
A male member connected to the rung;
With a female member connected to the support member,
The decoupling mechanism is
The gate device according to claim 1, further comprising a magnet that is fixed to both the male member and the female member and attracts the male member and the female member to each other. The joint is
One end is connected to the crossbar and the other end is a single member connected to the support member,
The decoupling mechanism is
A constriction formed at an edge between the one end and the other end;
The gate device according to any one of claims 1 to 7, further comprising a notch formed in another edge facing the edge.

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