JP3201720B2 - Moving shelf - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable shelf, and more particularly to a work between shelves where an earthquake occurs when a person enters a work passage formed between the shelves. The present invention relates to a movable shelf that automatically secures a space of a predetermined width between shelves even if a passage is narrowed so that a person is not trapped between shelves.

[0002]

2. Description of the Related Art A plurality of movable shelves with wheels are movably arranged on rails laid on the floor, and a work passage is formed in front of the shelves for loading and unloading articles. Then, when an earthquake occurs while a person is in the work passage formed between the shelves, each moving shelf moves back and forth on the rail, the work passage where the person is entering is narrowed, and the shelves and shelves are There is a risk that a person will be caught between them.

[0003] The present applicant has filed a Japanese Patent Application No. 55-5157.
As described in Japanese Patent Publication No. 0, a swinging rod having a length shorter than the maximum width of a passage formed between shelves and between shelves so that a human body is not squeezed, Means are provided for temporarily holding a parallel posture and a protruding position perpendicular to the shelf front surface, respectively, and the swinging rod takes a protruding posture perpendicular to the shelf front surface. Proposed a safety device for mobile shelves that prevents the approaching of other opposing mobile shelves.

[0004] According to the safety device described in the above-mentioned publication, when the user tries to enter or remove an article by entering the work passage formed between the shelves, the rocking rod must be previously projected in the direction perpendicular to the shelf opening face. Therefore, even if an earthquake occurs while entering the work path between shelves and the work path is narrowed, the rocking rod prevents the opposing moving shelves from approaching each other and the rocking rod , The safety of the worker in the work passage between the shelves is ensured.

[0005]

However, there is still room for improvement in the safety device described in the above publication. That is, the swinging rod needs to be manually operated to be in a position parallel to the shelf front surface and in a protruding position perpendicular to the shelf front surface. If you forget to make the rocking rod project in the direction perpendicular to the opening of the shelf when trying to put in and take out the goods, the rocking rod will function as expected in the event of an earthquake. Cannot be demonstrated. In addition, it is troublesome to set the swinging rod to the protruding position by manual operation when trying to enter / exit articles in the work passage, and to manually retract the swinging rod from the shelf front face after the work is completed. In some cases, the swinging rod may enter the work path without being in the protruding position, and the swinging rod may not be able to perform its intended function.

Accordingly, the present applicant further provides a lever member corresponding to the swinging rod so as to be swingably displaceable between a standing position parallel to the front surface of the movable shelf and a sideways position projecting forward of the movable shelf. A patent was previously filed for a movable shelf in which the lever actuating means is operated by an electric seismic signal to displace the lever member in a sideways position. Japanese Patent Application No. 7-28
That is the invention according to No. 9463.

[0007] According to the invention according to the above-mentioned prior application, the lever member is automatically turned sideways by the electric seismic signal to be displaced to the posture, so that the article enters the work passage formed between the shelves and receives the article. If you forget or neglect to make the swinging rod protrude in the direction perpendicular to the shelf opening when you try to put it in and take it out. Can ensure the safety of the people.

[0008] Here, the lever member is not automatically made to protrude from the front of the shelf via the lever operating means by the electric seismic signal as in the invention according to the above-mentioned application.
It is even more desirable if the lever member can be mechanically brought into the protruding position by mechanical seismic means. Because, in the event of a major earthquake, a power failure often occurs, and if there is no backup power supply in case of an emergency, it is not possible to obtain an electric seismic signal, This is because it cannot be secured.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and when a person tries to enter / exit an article by entering a work passage formed between shelves, a member for preventing access to an adjacent shelf is provided. Even if the user forgets or neglects the projecting position in the direction perpendicular to the shelf opening, if the shelf shakes significantly due to an earthquake or the like, the access prevention member automatically assumes the projecting position and It is possible to ensure the safety of workers,
Moreover, even if a power failure occurs due to an earthquake or the like, it is an object of the present invention to provide a movable shelf that can ensure the safety of workers in a work passage by automatically setting the approach prevention member to a protruding position. I do.

[0010] The present invention is also intended to relieve the impact when the access preventing member moves from the retracted position to the protruding position, to prevent the approach preventing member from rebounding, to quickly stabilize the access preventing member in the protruding position, and to be adjacent to each other. It is an object of the present invention to provide a movable shelf that can more reliably prevent the shelves from approaching each other.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, it is possible to protrude from a front surface in a moving direction toward an adjacent moving shelf and prevent approach to the adjacent moving shelf. In a movable shelf having an access blocking member capable of taking a protruding position and a retracting position, the access blocking member is rotatably provided in a vertical plane about an axis.
Together eclipsed held in frictional resistance thus tentatively retracted state position of the shaft, towards the movable shelf next to the movement direction front tentative retention is released in the retracted state position by mechanical vibration during an earthquake It is characterized by taking a protruding posture.

[0012] contact near blocking member, as in the invention of claim 2, held in the provisionally retracted state position hooked to the movable rack body with provided rotatably in a vertical plane about an axis Alternatively, the provisional holding in the evacuation position may be released due to the earthquake, and the position may protrude from the front in the moving direction toward the adjacent moving shelf. As in the invention described in claim 3, Oite the inventions of claim 1 or 2, wherein,
By connecting a weight or a spring to the access blocking member and releasing the retracting position of the access blocking member by an earthquake, the weight or spring acts as a rotational urging force, and the access blocking member is positioned adjacent to the moving shelf from the front in the moving direction. May protrude toward the moving shelf. Like the invention of claim 4 ,
Claim 1 or 2 Oite the inventions described, the lever swinging earthquake by having a weight provided to protrude the proximity blocking member by a vibration of the lever from moving direction front of the movable rack towards the moving rack next You may do so.

According to a seventh aspect of the present invention, before the moving direction,
From the surface to the next mobile shelf and approaching the next mobile shelf
Take a protruding position and an evacuation position that can prevent
A movable shelf having an access blocking member
The access blocking member is slidably provided in the longitudinal direction.
And is urged toward the next moving shelf, in front of the shelf.
Engaged in the retracted position from the surface and held in the retracted position,
The above-mentioned engagement is disengaged by shaking such as an earthquake.
May be slid toward and protrude from the next movable shelf .

In the case where the movable shelf is of an electric type, the moving shelf according to claim 8 is provided.
As you can see, the approach blocking member moves from the front in the
When it is in a position protruding toward the shelf,
Interlock on a moving shelf facing the passage where the material is protruding
May be applied, or the invention according to claim 9 may be applied.
As shown in the figure, the access blocking member moves from the front in the moving direction to the next moving shelf.
In the protruding position and at the tip of the access prevention member
The detection signal of the contact sensor provided at least
Drive motor for moving shelves facing work passages with protruding material
The power supply to the power supply may be stopped.
As in the invention of the third aspect, it faces the access blocking member in the protruding position.
Contacting the position of the shelf that faces the front end surface of the access prevention member
A sensor is provided and the detection signal of this contact sensor
Moving shelf facing the work passage from which the access blocking member protrudes
May be stopped.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a moving shelf according to the present invention. 1 and 2, an appropriate number of rails 4 are laid in parallel on a base 3 such as a floor of a building, and wheels 6 are rotatably provided on the rails 4 at the bottom of an appropriate number of movable shelves 2. Is mounted, and the wheels 6 of the movable shelves 2 roll on the rails 4 so that the movable shelves 2 can move along the rails 4. Fixed shelves 1 are arranged on both sides of the plurality of moving shelves 2 in the moving direction. The fixed shelf 1 is fixed at a fixed position on the base 3. In each of the movable shelves 2 and the fixed shelves 1, the surfaces on both sides in the moving direction of the movable shelves 2 are surfaces for taking in and out of articles. By moving an appropriate moving shelf 2 among the plurality of moving shelves 2, a work passage can be formed on a front surface of a desired moving shelf 2.

In the example shown in the figure, an electric movable shelf device is provided, and a general operation panel 1 is provided on a fixed shelf 1 at the left end in FIG.
The fixed shelf 1 and each movable shelf 2 are provided with an individual operation panel 12. Each individual operation panel 12 is provided with an operation switch for forming a work passage between the shelf and an adjacent shelf, and other various switches. Each of the movable shelves 2 has a protruding position that protrudes from the front in the moving direction toward the adjacent movable shelves 2.
An access blocking member 5 capable of blocking access to the vehicle is provided. Each of the approach preventing members 5 can also be in a retracted state in which the moving shelf 2 stands up in parallel with the front surface in the moving direction. In FIG. 1, an access blocking member 5 similar to the access blocking member 5 is also provided on the fixed shelf 1 at the left end. The access blocking member 5 has a length that is shorter than the maximum width of the passage formed between the shelves and that does not clamp the human body. Since the human body has flexibility or elasticity, the length of the human body so as not to be pinched may be shorter than the width of the human body left, right, front and back.

Next, the structure and operation of the access blocking member 5 will be described in detail. 2 and 3, a shelf support, a shelf, a side panel,
A bracket 8 is fixed to the front surface of other appropriate members,
The access blocking member 5 is rotatably supported in a vertical plane about a horizontal shaft 7 attached to a bracket 8. The range of rotation of the access prevention member 5 is such that the retracted position which rises almost in parallel with the front surface of the movable shelf 2 and the movable shelf 2 protrudes from the front surface of the movable shelf 2 toward the adjacent movable shelf 2. The range is approximately 90 ° between the protruding positions that can be prevented. The evacuation position is the holding means 14
Tentatively held by As the holding means 14, for example, a magnet, a spring catch, a fastener, or other appropriate temporary holding means can be used. Or,
Even without special provision of such provisional holding means, the shaft 7
May be provisionally held by the frictional resistance between the member and the approach preventing member 5. Alternatively, a part of the access blocking member 5 (for example, a pin provided on the access blocking member 5) may be hooked on the movable shelf main body, or may be simply stood up. In any case, the provisional holding force is set to be weak so that the provisional holding posture is released by a relatively weak external force. The protruding position of the access blocking member 5 is as follows:
The access prevention member 5 contacts the inner bottom surface of the bracket 8 and is held.

Another bracket 10 is fixed below the bracket 8, and a tension spring 9 is hung between the bracket 10 and the access preventing member 5. When the access blocking member 5 is in the retracted position in which the access blocking member 5 rises in the vertical direction as shown by a solid line in FIG. 3, a line connecting the connection point between the access blocking member 5 and the spring 9 and the connection point between the bracket 10 and the spring 9. And the extension of the shaft 7 overlaps. Therefore, when an external force is applied to the approach preventing member 5 and the provisional holding position in the retracted position is released, the approach preventing member 5 is rotationally urged toward the protruding position by the pulling force of the spring 9 and the approach The blocking member 5 rotates quickly. When the approach blocking member 5 rotates to a substantially horizontal position, the approach blocking member 5 contacts the inner bottom surface of the bracket 8 to restrict the rotation range. At this time, the approach blocking member 5 tends to return by reaction. However, since the pulling force of the spring 9 is acting, the movement of the approach preventing member 5 trying to return by reaction is suppressed, and the fluttering of the access preventing member 5 is suppressed, and the approach is stabilized early.

When the movable shelf 2 vibrates due to an earthquake or the like when the access blocking member 5 is in the evacuation position in which the access blocking member 5 rises vertically as shown by a broken line in FIG. 3, the access blocking member 5 also vibrates. 3, when it is rotated clockwise to some extent, the line connecting the connection point between the approach preventing member 5 and the spring 9 and the connection point between the bracket 10 and the spring 9 moves outside the extension of the shaft 7. 3, the biasing force of the spring 9 acts on the approach blocking member 5 as a clockwise rotating biasing force in FIG. 3, whereby the approach blocking member 5 assumes a protruding position as shown by a solid line. Therefore, even if the work passage between the adjacent shelves is narrowed, the tip of the access prevention member 5 contacts the adjacent shelf to prevent the adjacent shelf from approaching, and corresponds to the length of the access prevention member 5. A wide work passage is secured between adjacent shelves to prevent a person from being pinched between shelves.

As described above, according to the above example, even if the worker fails to keep the access blocking member 5 in the protruding position, if the moving shelf 2 shakes violently due to an earthquake or the like, the access blocking member 5 is not moved. 5
Automatically take a protruding position to ensure the safety of the worker in the work passage, so that it is possible to obtain a movable shelf with excellent safety. In addition, in order to detect the vibration mechanically without using an electric seismic signal and to set the approach preventing member 5 to the protruding position, the approach preventing member 5 is set to the protruding position even if a power failure occurs due to an earthquake or the like. And a more secure moving shelf can be obtained.

The spring 9 in the above example may function as a so-called spring. That is, when the access blocking member 5 is in the retracted position in which it rises in the vertical direction, the connection point between the access blocking member 5 and the spring 9 and the bracket 1
The line connecting the connection point of the spring 9 and the connection point 0 is located inside the extension of the shaft 7, that is, on the side of the movable shelf 2 main body, thereby urging the approach preventing member 5 toward the movable shelf 2 main body. As a result, the retracting position is provisionally held, while the approach preventing member 5 slightly rotates toward the protruding position, and the connection point between the approach preventing member 5 and the spring 9 and the bracket 10 and the spring 9 are connected. When the line connecting the connection point and the extension line of the shaft 7 exceed the overlapping point, the pulling force of the spring 9 urges the approach preventing member 5 to rotate toward the protruding position as described above. Let it work. As described above, if the spring 9 acts as a thought spring, it is not necessary to separately provide the holding means 14 shown in FIG. In the retracted position in which the access blocking member 5 rises in the vertical direction, the line connecting the connection point between the access blocking member 5 and the spring 9 and the connection point between the bracket 10 and the spring 9 is longer than the extension of the shaft 7. Even if it is on the outside, there is no problem as long as there is some frictional resistance between the access blocking member 5 and the shaft 7 and the access blocking member 5 can maintain the retracted position.

In FIG. 3, a sensor 16 for detecting when the approach preventing member 5 is in the retracted position is attached to the movable shelf 2 main body side. The sensor 16 is a microswitch in the illustrated example, and its actuator 1
8 protrudes from the front surface of the movable shelf 2 main body. When the access preventing member 5 is in the retracted position in which the access preventing member 5 stands upright, the actuator 18 is pushed by the access preventing member 5, while
When the approach preventing member 5 is in the protruding position, the approach preventing member 5 escapes from the actuator 18 and the sensor 16 performs a detection operation to output a signal indicating that the approach preventing member 5 is in the protruding position. Therefore, when the movable shelf 2 is an electric movable shelf, when the approach preventing member 5 is in a position protruding from the front of the movable shelf 2 in the moving direction toward the adjacent movable shelf 2, the sensor 16
, A detection signal indicating that the approach preventing member 5 is in the protruding position is output, and the detection signal interlocks the moving shelf 2 facing the passage from which the approach preventing member 5 projects. In this way, even if a person other than the person working in the passage operates the movable shelf 2 to form a work passage at another position, at least the interlocked movement Since the shelves 2 cannot move, the safety of the workers in the work passage is ensured.
The sensor 16 may be an optical sensor, a magnetic sensor,
Any type such as a mechanical type may be used.

Incidentally, rubber, synthetic resin or other suitable elastic material may be used in place of the spring 9. The access blocking member 5 is not limited to a member rotating in a vertical plane, but may be a member rotating in a horizontal plane. When the access blocking member 5 is rotating in a vertical plane, when the access blocking member 5 is in the retracted position, the access blocking member 5 is erected on the movable shelf 2 main body to temporarily hold the retracted position. It may be. In this case, it is not necessary to provide a temporary evacuation position holding means. When the approach preventing member 5 is in the protruding position, it is not always necessary to accurately take the horizontal position, but may be inclined to some extent. However, if the tip of the approach preventing member 5 is tilted upward and the tilt angle is too large, when the adjacent shelf abuts on the tip of the approach preventing member 5, the tip Will rotate the access blocking member 5 toward the retracted position while sliding along the surface of the opponent's shelf,
The inclination angle is restricted to a certain range.

Instead of the spring 9 in the above-described example, a weight 20 may be used as in the example shown in FIG. In FIG. 4, the access blocking member 5 rotatably supported on the moving shelf 2 in the vertical plane via the bracket 8 in the same manner as in the above-described example, has the weight 20 via the connecting member 22 at a position near the shaft 7. Is suspended. Connecting member 22
May be a flexible member such as a wire, a rope, a string, a chain, or a rigid member such as a lever or a rod. When the connecting member 22 is a rigid body, the connecting member 22 is rotatably connected to the access preventing member 5.

Also in this example, the spring 9 is used as in the above-described example.
The operation is the same as the case of using. That is, when the access blocking member 5 is in the retracted position in which it rises in the vertical direction as shown by the broken line in FIG.
The extension line of the shaft 7 overlaps the hanging line 2, and the retracted state is maintained by the frictional resistance between the approach preventing member 5 and the shaft 7. Now, when the movable shelf 2 vibrates due to an earthquake or the like, the approach preventing member 5 also vibrates with it, and the weight 20 also shakes, so that the drooping line of the connecting member 22 has moved outside the extension of the shaft 7. At this time, the load of the weight 20 acts on the approach preventing member 5 as a rotational urging force in the clockwise direction in the figure, whereby the approach preventing member 5 rotates to assume a protruding position as shown by a solid line. Access blocking member 5
Can maintain the evacuation position, the access blocking member 5
In the retracted position, the hanging line of the connecting member 22 may be outside the extension line of the shaft 7, or may be inside the extension line. The example shown in FIG. 4 has the same effect as the above-described example.

FIG. 5 shows an example in which the approach preventing member 5 is set in the protruding position by using the swinging power of the weight that swings by vibration. In the example shown in FIG. 5A, a lever 28 is rotatably supported in a vertical plane around a shaft 26 in a support column 24 constituting a part of a movable shelf, and a weight 30 is provided at a lower end of the lever 28. The levers 28 are integrally connected to each other, and a protrusion 28a formed laterally at the upper end of the lever 28 is made to face the front side of the movable shelf from a hole formed in the front wall of the column 24. The convex portion 28a is opposed to the rear surface of the access blocking member 5 which takes the above-mentioned.
The access blocking member 5 is configured in the same manner as in the above-described example, and the retracting position of the access blocking member 5 is temporarily held by the holding means 14. In this state, if the shelf shakes greatly due to an earthquake or the like, the lever 28 having the weight 30 also swings about the shaft 26 together with this, and when the convex portion 28a of the lever 28 swings in a direction protruding from the front of the shelf, the approach is prevented. The member 5 is the projection 2
8a, it is detached from the holding means 14 and rotated by its own weight to be in a protruding position from the front surface of the shelf as described above.
Take a posture that prevents mutual access to adjacent shelves.

FIGS. 5 (b) and 5 (c) show various modifications of the weight. In the example of FIG. 5 (b), the weight 32 itself is rotatably supported around the shaft 26, and the lower end of the weight 32 A projection 32a provided integrally with the pushing member to push the access blocking member,
In the example of (c), the weight 34 is supported rotatably about the shaft 26, and the approach preventing member is pushed by the convex portions 34a, 34a integrally provided on the upper and lower ends of the weight 34. is there. 5 (b) and 5 (c), when the shelf shakes greatly due to an earthquake or the like, the weights 32 and 34 are moved together with the shaft 26.
And the convex portions 32a, 34 of the weights 32, 34
When a is shaken in a direction protruding from the front surface of the shelf, the access blocking member 5 in the retracted position is separated from the holding means 14 by being pushed by the convex portions 32a and 34a, and is rotated by its own weight to rotate the shelf as described above. In a position protruding from the front of the shelf to prevent mutual access to adjacent shelves.

The access blocking member is not limited to a rotatable member, but may be a member slidably provided in the longitudinal direction as shown in FIG. In FIG. 6, a guide tube 38 is fixed on the inner surface side of the panel 36 on the front side of the shelf in a direction perpendicular to the surface of the panel 36. In the guide tube 38, an access preventing member 40 guides the guide tube 38. Is slidably inserted in the longitudinal direction. The access blocking member 40 is urged in a direction to protrude forward from the panel 36 by a spring 42 hung between a pin 40a fixed to the access blocking member 40 and a pin fixed to the guide cylinder 38. ing. In the illustrated operation mode, the access blocking member 40 is opposed to the biasing force of the spring 42.
Is pushed into the guide cylinder 38, and the engagement protrusion 40b formed on the lower surface side of the access prevention member 40 engages with the locking hole 38a formed on the lower part of the guide cylinder 38, so that the access prevention member 40 is She is in an evacuation position from the front of the shelf.

The access blocking member 40 has a shaft 4 in its width direction.
6 is attached, and the shaft 46
The lever 44 is supported so as to be rotatable in a vertical plane with the center as the center. The lever 44 has an engagement protrusion 44a on the upper right end and an engagement protrusion 44b on the lower left end in FIG. The lever 44 is urged to rotate counterclockwise in FIG. 6 by its own weight or by a spring urging force. However, when the access preventing member 40 is in the retracted position as shown in FIG.
The engaging projection 44a slides on the ceiling surface of the guide cylinder 38,
The engaging projection 44b is in sliding contact with the inner bottom surface of the guide cylinder 38. When the approach preventing member 40 is in the protruding position, the engaging projection 44a is located on the front side of the panel 36, and the lever 44 is slightly rotated by the urging force, so that the engaging projection 4a is rotated.
4a engages with the panel 36, and the engaging projections 44b engage with the locking holes 38b formed in the bottom of the guide cylinder 38, thereby preventing the approach preventing member 40 from retreating and projecting. Is to be held.

Now, in the retracted state shown in FIG. 6, when the shelf shakes due to an earthquake or the like, the engagement protrusion 40b of the access preventing member 40 is disengaged from the engaging hole 38a, and the access preventing member 40 It slides by the urging force and protrudes from the panel 36 of the shelf. When the engaging projection 44a of the lever 44 comes out to the front side of the panel 36 at the end of this sliding stroke, the lever 44 rotates counterclockwise, and the engaging projection 44a engages with the panel 36 as described above. Then, the engagement convex portion 44b engages with the locking hole 38b of the guide cylinder 38, thereby preventing the approach preventing member 40 from retreating and maintaining the protruding position. This position is a position for preventing adjacent shelves from approaching each other. When the adjacent shelf comes in contact with the tip of the access preventing member 40, the adjacent shelves are prevented from approaching further.

In order to release the protruding position of the approach preventing member 40, the lever 44 is rotated by pushing the engaging projection 44a with a finger, and the engagement of the engaging projection 44a with the panel 36 and the engagement projection are performed. The engagement of the portion 44b with the locking hole 38b is released, and in this state, the access blocking member 40 is pushed against the urging force of the spring 42,
The access blocking member 40 is retracted, and the engagement protrusion 40b of the access blocking member 40 is locked in the locking hole 38a to take the above-described retracted state. As described above, even when the slide-type access blocking member 40 as shown in FIG. 6 is used, the access blocking member 40 is automatically moved by the shaking of an earthquake or the like, and without using an electric signal or electric power. To prevent the adjacent shelves from approaching each other, so that the same effect as in the above-described embodiment can be obtained.

FIG. 7 is included in the technical scope of the present invention .
Although not shown, a modified example of the slide type access prevention member is shown. In this example, a rack 48a is formed on the access blocking member 48, and the pinion 50 meshed with the rack 48a is driven to rotate in the forward and reverse directions, so that the access blocking member 48 is projected from the shelf and retracted. Things. The pinion 50 is driven to rotate by a motor (not shown), and when the sensor detects shaking due to an earthquake or the like, the motor is driven to cause the access preventing member 48 to protrude from the shelf. The approach blocking member 48 is urged in the protruding direction and locked in the retracted position, and the locking is mechanically released by a large swing, and the approach blocking member 48 is attached while the pinion 50 idles. You may make it protrude by force. In this case, the book
It is included in the technical scope of the invention.

FIG. 8 shows still another modification of the slide type access prevention member. This example is similar to the example shown in FIG.
Access prevention member 40, guide cylinder 38, spring 42, panel 3
6, the lever 44 and the like. 6 is different from the example shown in FIG. 6 in that a solenoid 52 and a plunger 53 attached thereto are used as means for temporarily holding the access preventing member 40 in the retracted position, and the plunger 53 is protruded and urged by a spring 54. The plunger 53 projecting by the urging force is engaged with the notch of the access blocking member 40 to
0 is held in the evacuation position. When a sensor (not shown) detects a large shaking due to an earthquake or the like,
The solenoid 52 is excited by this detection signal, and the plunger 53 is attracted to the solenoid 52 against the spring 54 to release the engagement of the plunger 53, and the approach preventing member 40 is brought into the protruding position by the urging force of the spring 42. . This protruding position
The engaging projection 44a of the lever 44 is held by engaging with the panel 36. To release the protruding position and return to the retracted position, the panel 3
In this state, the plunger 53 may be engaged with the approach-preventing member 40 by pushing the approach-preventing member 40 against the urging force in a state in which the engagement with the plunger 53 is released. This example is also within the technical scope of the present invention.
Is not included.

When the quake shakes greatly due to an earthquake or the like,
It is more preferable that the engagement with the plunger 53 be released by the vertical movement of the approach prevention member 40. This way,
Even if a power failure occurs due to an earthquake or the like, the access blocking member 4
This is because 0 can take a protruding position.

When the access blocking member is of a sliding type, the access blocking member may be slid by air pressure or hydraulic pressure. Further, when an earthquake is detected, explosives or the like may be blasted by a detection signal, and the access blocking member may be protruded by the blasting force, or when the approach blocking member is urged in the protruding direction, the blasting force is used. The lock may be released and the access blocking member may be protruded. Further, the access blocking member may be set in the retracted position without being protruded during normal use, and may be set in the protruded position only when it shakes greatly due to an earthquake or the like.

When the mobile shelf is used in a routine use or after the earthquake and the access blocking member is in the protruding position, and the mobile shelf is moved in a direction to narrow the work passage from which the access blocking member protrudes, the next shelf is used. An access blocking member intervenes between them to prevent further access. Assuming that the moving shelf device is electrically operated and there is no interlock means based on the detection operation of the sensor 16 described with reference to FIG. 3, even if the approach preventing function by the access blocking member is exhibited as described above, the driving of the moving shelf is still performed. When power is supplied to the motor, the motor will heat up. Therefore, in the example shown in FIG. 9, the shelf, for example, the fixed shelf 1 opposed to the approach prevention member 5 in the protruding position.
A pressing member 60 is provided at a position facing the distal end surface of the above-described access blocking member 5, and the pressing member 60
Is provided, and the detection signal of the switch 56 stops the power supply to the drive motor of the movable shelf facing at least the work passage from which the access blocking member 5 protrudes. Power supply to the drive motor may be stopped. The switch 56 constitutes a kind of contact sensor. Similarly, when an operator or a foreign object touches the pressing member 60, the operation is stopped.

In the example shown in FIG. 10, instead of the switch 56 in the example shown in FIG. 9, a contact sensor 62 is attached to the tip of the approach preventing member 5, and the next shelf touches the contact sensor 62.
Alternatively, when an operator or the like touches, the power supply to the drive motors of the movable shelves facing at least the work passage from which the approach preventing member 5 projects is stopped, or the power supply to the drive motors of all the movable shelves is stopped. It is like that.

FIG. 11 shows another example in which the access blocking member 5 rotates in a vertical plane. In FIG. 11, one end of an arm 64 is rotatable by a shaft 66 at an intermediate portion in the longitudinal direction of the access blocking member 5 rotatably supported on the shaft 7 by a bracket 8 fixed to a column 24 of the shelf. It is connected to. The arm 64 penetrates a hole 24a formed in the front wall of the support post 24. When the access blocking member 5 is in the protruding position as shown in the figure, the arm 64 is formed at the other end of the arm 64. The stop 64a is engaged with the lower edge of the hole 24a to temporarily hold the protruding position of the access preventing member 5. In the retracted position in which the access blocking member 5 rises substantially parallel to the front surface of the column 24, the arm 64 draws the access blocking member 5 toward the column 24, and temporarily holds the access blocking member 5 in the retracted position. When the shelf is greatly shaken by the earthquake or the like when the access preventing member 5 is in the retreating position, the access preventing member 5 automatically rotates to the protruding position.

The arm 64 in the example of FIG. 11 may be replaced by a suitable member having the same function. For example, it may be a flexible member such as a chain, a string, a rope, a belt, or a rigid member such as a lever, a rod, or a link. It is desirable to attach a flexible member or a cushioning material to the leading end of the access preventing member so as not to damage the adjacent shelf when it comes into contact with the adjacent shelf or to reduce the impact at the time of collision.

The present invention is not limited to an electric movable shelf, and is also applicable to, for example, a movable shelf in which the rotational force by the manual operation of a steering wheel is reduced and transmitted to drive wheels to travel the movable shelf. FIG. 12 and FIG. 13 show an example of such a moving shelf drive mechanism. In FIG. 12, a rotating operation handle 71 is rotatably attached to the side of the moving shelf 70, and the rotational force of the handle 71 is transmitted to the moving shelf 70 via an appropriate speed reduction mechanism including sprockets, chains, gears and the like (not shown). The light is transmitted to a rotary shaft 72 rotatably supported by a suitable bearing 86 at the bottom of the base 70. The rotating force of the rotating shaft 72 is transmitted to the rotating shaft 73 via a clutch having a driving wheel 74 and a driven wheel 75. The rotational force of the rotating shaft 73 is
The power is transmitted to the drive wheel shaft 83 via the sprocket 80, the chain 81, and the sprocket 82. The drive wheel shaft 83 is supported by a suitable bearing 86 and is arranged on one side in the front-rear direction of the movable shelf 70, and an appropriate number of drive wheels 84 are integrally attached to the drive wheel shaft 83. A driven wheel 85 corresponding to a drive wheel 84 is rotatably supported by a suitable bearing 86 near the other side in the front-rear direction of the movable shelf 70.

FIG. 13 shows the clutch in detail. A driving wheel 74 of a clutch is rotatably integrated with the rotating shaft 72, but is relatively movably mounted in the direction of the rotating shaft 72. A driven wheel 75 of the clutch is mounted on the other rotating shaft 73.
Are attached integrally. A circumferential groove 74a is formed in the drive wheel 74, and the distal end of a shift lever 79 rotatable in a plane including the center axis of the rotating shaft 72 about the shaft 78 is formed in the circumferential groove 74a with some space. I'm stuck. Another lever 77 is rotatably supported on the shaft 78. A weight 76 is integrally attached to one end of the lever 77. A bent portion 77 is provided at the other end of the lever 77.
The bent portion 77a rises to the side of the shift lever 79, that is, to the left in FIG.

The lever 77 reciprocates relative to the movable shelf in a horizontal plane due to the inertial force of the weight 76 due to a large vibration caused by an earthquake or the like. Of this reciprocating rotation, the clockwise rotational force shown by the solid line in FIG. 13 is transmitted to the shift lever 79 via the bent portion 77a, and the shift lever 79 shifts the drive wheel 74 rightward in FIG. Then, the driving force transmission mode by the engagement between the convex portion 74b of the driving wheel 74 and the concave portion 75b of the driven wheel 75 is released. On the other hand, the turning force of the lever 77 in the counterclockwise direction shown by the broken line in FIG.
7a escapes from the shift lever 79, so that the shift lever 7
9 is not transmitted. Therefore, when a large vibration due to an earthquake or the like occurs, the drive wheel 74 is shifted only in a direction in which the engagement with the driven wheel 75 is released. As a result, the driving wheels 8
4 is released from the deceleration transmission mechanism and can rotate without resistance, and the shaking energy at the time of the earthquake is not transmitted to the movable shelf main body, thereby exhibiting an excellent seismic isolation effect.

The lever 77 and the shift lever 79
A one-way clutch composed of a ratchet mechanism or the like may be interposed between them.

In the examples shown in FIGS. 1 and 2, the movable shelf is of a type in which the movable shelf moves in a direction perpendicular to the article entrance, but the present invention moves in a direction parallel to the article entrance. It can also be applied to mobile shelves of the type. Also, all shelves constituting the mobile shelf device may be mobile shelves.
The access blocking member may rotate or slide on the side of the shelf. The cross-sectional shape and material of the access blocking member are arbitrary.

When the access blocking member rotates in the vertical plane, the access blocking member extends from the retracted position parallel to the front surface in the moving direction of the shelf to the access blocking position protruding from the front surface in the moving direction of the shelf. May be rotated in the range of. By doing so, the access blocking member can be set in a protruding position at the upper part of the shelf, and thus above the head of the worker, so that the worker does not hit the access blocking member, and Evacuation becomes smooth. Here, in order to change the approach-preventing member from the suspended evacuation position to the protruding position due to an earthquake or the like, the access-preventing member is rotationally urged in the direction of the protruding position, and this is temporarily set in the evacuation position. A holding means for holding is provided so that, when it shakes greatly due to an earthquake or the like, the holding means is released, and the approach preventing member is rotated by the urging force.

When the approach preventing member is of a rotary type, in order to temporarily and moderately maintain the retreating position and the protruding position, for example, a configuration is adopted in which the ball falls into the hole at each rotation position. A mechanism called a click mechanism, or a mechanism called a toggle mechanism that rotates in a predetermined direction by an elastic urging force when a predetermined rotational position is exceeded may be added. Further, in order to provide an appropriate frictional resistance to the rotation of the access prevention member, a synthetic resin or another friction material may be interposed between the access prevention member and its shaft. The means for temporarily holding the rotary type access blocking member in the retracted position may be such that a part of the access blocking member or a pin provided on the access blocking member is hung on the shelf body side. .

At least one access blocking member is provided on one shelf.
It may be provided at multiple locations, but more preferably at multiple locations. The type of the movable shelf is arbitrary, and may have a traveling mechanism on the upper part. Alternatively, a manual push type, a handle rotating type, or an electric type, which is manually moved by directly pushing or pulling, may be used. Further, a flat board type may be used.

When a shaking occurs due to an earthquake or the like, it is desirable to quickly move the access blocking member to the protruding position. For this purpose, as shown in FIGS. When the shaking occurs, the approach preventing member may be urged toward the protruding position. However, when the approach preventing member instantly reaches the projecting position due to the urging force, the approach preventing member violently hits a restricting member such as a stopper for restricting the approach preventing member in the projecting position and rebounds. At the moment of the rebound, the adjacent shelf approaches. Then, it may not be possible to prevent the approach of the adjacent shelf. Therefore, it is desirable to apply braking to the approach preventing member when the approach preventing member is near the protruding position while the approach preventing member is instantaneously brought to the protruding position. Hereinafter, various examples in which a braking means is added to the approach preventing member will be described.

The example shown in FIG. 14 shows a movable shelf 2 having an access blocking member 5 which rotates in a vertical plane to move from a retracted position to a protruding position. A braking means 90 for applying a braking force to the approach preventing member 5 at the end of the moving stroke to the right is provided. The braking means 90 is made of an elastic body such as a leaf spring, and is provided on a vertical surface of the bracket 8 which rotatably supports the access blocking member 5 and is interposed between the vertical surface and the base end of the access blocking member 5. At the end of the movement of the access preventing member 5 from the retracted position to the protruding position, the base end face 5a of the access preventing member 5
0 is pressed against its elastic force, whereby a braking force is generated.

According to the example shown in FIG. 14, due to the generation of the braking force, the approach preventing member 5 does not rebound at the end of the movement stroke from the retracted position to the protruding position, and the approach preventing member 5 is quickly moved. Since it can be moved to the protruding position and can stably maintain the protruding position, safety in an emergency such as an earthquake can be more reliably ensured. The approach preventing member 5 may apply an urging force when moving to the protruding position, as in the examples of FIGS. 2 and 3, and even if the approach preventing member 5 vigorously reaches the protruding position by the urging force. ,
Bounce is prevented by the braking means 90. In the above example, the braking means 90 is an elastic body such as a leaf spring, but may be a friction member made of rubber, synthetic resin, or the like. When an elastic body is used as the braking means 90, the elastic body may be a coil spring, rubber, or the like.

Next, an example shown in FIG. 15 will be described.
In this example, a cylinder 91 is provided as a braking means for receiving the approach preventing member 5 and generating a braking force at the end of the movement of the approach preventing member 5 from the retracted position to the protruding position. The cylinder 91 includes a piston 92 that moves in and out of the cylinder 91, a spring 94 that urges the piston 92 in a direction to move out of the cylinder 91, and a receiving member 93 that is provided integrally with the tip of the piston 92. It is fixed to the vertical surface of the moving shelf 2 via a fixing member 95.
The cylinder 91 generates a braking force by utilizing resistance when a fluid such as air, gas, or oil flows, and the approach preventing member 5 approaches at the end of the movement stroke from the retracted position to the projected position. The base of the blocking member 5 comes into contact with the receiving member 93 and pushes the piston 92 toward the cylinder 91 against the urging force of the spring 94, and the braking force generated at this time stably prevents the approach blocking member 5 from bouncing back. It leads to a protruding posture.

Next, an example shown in FIG. 16 will be described.
In this example, a mechanical governor is used as braking means. In FIG. 16, a sector gear 96 having teeth formed along an arc centered on the shaft 7 is integrally attached to a base of the access blocking member 5 rotatably supported in a vertical plane about the shaft 7. Have been. A speed increasing gear train 97 is attached to the main body side of the moving shelf 2. Immediately before the approach preventing member 5 reaches a position protruding from the moving shelf 2, the sector gear 96 is located at the forefront of the speed increasing gear train 97. It is designed to mesh with gears. The last stage gear of the speed increasing gear train 97 meshes with the worm 98. A rotating body 99 is integrally attached to a shaft of the worm 98. The rotating body 99 generates a braking force by rotating at high speed, and is made of, for example, a wind vane or an elastic body such as rubber that is deformed by centrifugal force and slides on the braking body.

According to the example shown in FIG.
Rotates from the retracted position to the protruding position, and immediately before reaching the protruding position, the sector gear 96 meshes with the foremost gear of the speed increasing gear train 97 to rotate this foremost gear. The rotational force is increased by the speed increasing gear train 97, and the rotational force of the gear at the last stage of the speed increasing gear train 97 is further increased by the worm 96 to drive the rotating body 99 to rotate at high speed. When the rotating body 99 rotates at a high speed, a braking force is generated on the rotating body 99, and this braking force acts on the entire rotation transmitting mechanism, and the sector gear 96, and therefore, the approach preventing member 5 integrated with the sector gear 96 is formed. A braking force is applied, and the vehicle is settled in the protruding position without rebounding from the protruding position. Although the speed increasing gear train 97 alone functions as the braking means, the provision of the rotating body 99 more effectively functions as the braking means.

Next, an example shown in FIG. 17 will be described.
In FIG. 17, a slider 102 is fitted on the outer periphery of the access prevention member 5 rotatably supported in a vertical plane about the shaft 7. The slider 102 can slide between two stoppers 5c and 5d provided on the access blocking member 5. Bracket 10 is mounted on the movable shelf 2
The rear end of the cylinder 100 as a braking means is rotatably connected to the bracket 104 by a shaft 105 in a vertical plane, and the front end of a piston rod 101 fitted to the cylinder 100 so as to be able to advance and retreat. The slider 102 is connected by a shaft 103 to be rotatable in a vertical plane. The bracket 104 is located at a position relatively close to the bracket 8 supporting the access blocking member 5, and when the access blocking member 5 is in the protruding position shown by a solid line in FIG.
The slider 102 comes into contact with the stopper 5c, which is closer to the base, of the two stoppers 5c and 5d of the approach preventing member 5, and the cylinder 100 and the piston rod 101 assume a gentle inclination position.

When the access preventing member 5 rotates in the vertical plane and is in the retracted position in which it rises upward as shown by the chain line in FIG. 17, the cylinder 100 and the piston rod 101 also rotate upward and rise up, The slider 102 slides toward the distal end side of the approach preventing member 5, and abuts against the stopper 5 d on the distal end side to restrict the sliding. The piston rod 101 is pushed into the cylinder 100 by a predetermined amount. The access blocking member 5 is moved by the shaking such as an earthquake as shown in FIG.
As it rotates toward the protruding position shown by the solid line,
The slider 102 slides toward the stopper 5c,
Before reaching the protruding position, it comes into contact with the stopper 5c. The access blocking member 5 still rotates toward the protruding position, and the slider 1
The piston rod 101 is pulled by a shaft 103 provided on the cylinder 02, and the piston rod 101 is pulled out of the cylinder 100. At this time, a braking force is generated due to the resistance of the fluid flowing in the cylinder, and the approach preventing member 5 does not rebound from the protruding position and settles in the protruding position.

The example shown in FIG. 18 is almost the same as the example shown in FIG. 17, and includes a bracket 104 on the movable shelf 2 main body side, a slider 102 provided on the access blocking member 5,
17 has a cylinder 100 and a piston rod 101 connecting the slider 4 and a slider 102. This embodiment differs from the embodiment shown in FIG.
Is located farther above the bracket supporting the access blocking member 5, and when the access blocking member 5 is in the protruding position, the cylinder 100 and the piston rod 101 assume a steeply inclined position. With rotation of cylinder 1
00 and the piston rod 101 rotate in a relatively narrow range from the hanging position to the inclined position. Also in this example, similarly to the example of FIG. 17, when the access blocking member 5 rotates from the retracted position to the protruded position, the piston rod 101 is pulled out from the cylinder 100, and the resistance is restricted by the resistance of the fluid flowing in the cylinder 100. The power is generated, and the approach preventing member 5 is settled in the protruding position without rebounding from the protruding position.

In the examples shown in FIGS. 17 and 18, the cross-sectional shape of the access blocking member 5 and various modifications of the slider are shown in FIG. FIG. 19A shows an example of a U-shaped groove-shaped access blocking member 5A and a slider 102 formed to be wound around the outer surface of the access blocking member 5A. FIG. 19 (b)
A block-shaped slider 107 is provided inside an access blocking member 5B having a U-shaped cross section and having upper edges on both sides thereof bent inward.
Is shown, and a tongue piece 108 for connecting the piston rod is projected from the center of the upper surface of the slider 107.
FIG. 19 (c) shows that the upper edges of both sides of the U-shaped cross section are bent inward, and furthermore, the wheels 110 are rotatably arranged on both inner sides of the bent access blocking member 5C, respectively. An example in which a tongue piece 111 for connecting a piston rod is projected from the center of a shaft 109 for rotatably connecting a wheel 110 is shown.

FIGS. 19 (d), (e) and (f) show the access preventing members 5A and 5A shown in FIGS. 19 (a), (b) and (c), respectively.
B and 5C are connected two by two in a back-to-back manner. Any slider may be selected and used in combination with these access blocking members. The access blocking member is
In addition to the above-described embodiment, a slider having a circular cross-section and having a circular cross-section that slides along the outer periphery thereof may be fitted, or an access preventing member and a slider of any other forms may be used. The material of the slider is synthetic resin,
Metal or any other material may be selected, but a material that is as slippery as possible is desirable.

The approach preventing member may be configured to be brought into a protruding position by a motor, a plunger, a cylinder, or other appropriate actuator when a shaking such as an earthquake is felt. For example, in the example shown in FIG. 20, the rack plate 1 concentric with the rotation center axis 7 is provided on the upper surface of the access prevention member 5.
12, one end of which is fixed, and the rack of the rack plate 112 is engaged with a pinion 115 which is rotationally driven by a motor 114,
The forward / reverse rotation of the motor 114 rotates the access preventing member 5 in a range from the retracted position to the protruded position. The motor 114 is driven to rotate in one direction by the detection signal of the seismic device to bring the access blocking member 5 into the protruding position,
By rotating the motor 114 in the reverse direction,
To the evacuation position. In this example, there is no need to separately provide a braking means.

In the example shown in FIG. 20, the length of the rack plate 112 is made very short, and the rack 113 of the rack plate 112 is engaged with the pinion 115 of the motor 114 in the retracted state, and the detection signal of the seismic device is used. After the motor 114 is driven to rotate the access blocking member 5 by the length of the rack plate 112, the approach blocking member 5 may be rotated to the protruding position by its own weight. The return of the access blocking member 5 to the retracted position is performed manually. In this example, it is desirable to provide a braking means.

In the example shown in FIG. 21, the base of the access preventing member 5 is directly connected to the output shaft 117 of the motor 116, and
The rotation drive causes the access prevention member 5 to rotate between the retracted position and the protruded position. The motor 116 is driven to rotate in one direction by the detection signal of the seismic device to change the approach preventing member 5 from the retracted position to the protruding position, and is reversed by a switch operation or the like to set the approach preventing member 5 to the retracted position. The retracting position and the protruding position of the approach preventing member 5 are detected by a limit switch or the like, and the power to the motor 116 is turned off by this detection signal, and the approach preventing member 5 is stopped in the retracting position and the protruding position. The retracting position of the access blocking member 5 is the motor 11
6 may hang down from the output shaft 117.

In the example shown in FIG. 22, the approach preventing member 5 holds the retracted position in which it rises vertically by the holding means 14, excites the solenoid 120 by the detection signal of the seismic device, and sets the plunger 121 to the spring 122. The approach preventing member 5 is pushed out by the plunger 121 to cancel the holding by the holding means 14, and the approach preventing member 5 is rotated to the projecting position by its own weight. In this case, it is desirable to provide a braking means for generating a braking force immediately before the approach preventing member 5 reaches the protruding position.

In all of the embodiments described with reference to FIG. 14 and subsequent drawings in which the braking means for generating a braking force when the approach preventing member reaches the protruding position, the approach preventing member rotates. Even if the member slides to the protruding position, it is effective to provide the braking means. That is, when the approach preventing member slides by the urging force to reach the protruding position, there is a possibility that the approach preventing member rebounds when the approach preventing member reaches the protruding position. This is because there is no rebound.

[0064]

According to the first aspect of the present invention, the protruding position, which can protrude from the front in the moving direction toward the next moving shelf and can prevent the approach to the next moving shelf, and the retracting position. In a movable shelf having an access blocking member which can be taken, the access blocking member is provided rotatably about a shaft in a vertical plane and has a frictional resistance with the shaft.
Therefore, it is held in the tentatively saved state position to, mechanical at the time of earthquake
The temporary holding in the evacuation position is released by violent vibration , and the posture that protrudes from the front in the moving direction to the next moving shelf is taken, so that a person enters the work passage formed between the shelves and Even if you forget or neglect to set the access prevention member to the adjacent shelf in the protruding position when trying to put in and take out the work, if the shelf shakes greatly due to the earthquake, the access prevention member automatically protrudes. Therefore, the safety of the worker in the work passage can be ensured.

According to the second aspect of the present invention, the access preventing member is provided so as to be rotatable about a shaft in a vertical plane.
Is temporarily held in the evacuation position by being hooked by the moving shelf body, and temporarily held in the evacuation position is released by mechanical vibration during an earthquake, and protrudes from the front in the moving direction to the next moving shelf The same effect as the first aspect of the invention can be obtained.

[0066] According to the third aspect of the present invention, claim 1 or
Others Oite the inventions of the second aspect, is connected the weight or spring to close preventing member, by retracting state position of swaying in the proximity blocking member such as an earthquake is released, the weight or spring rotational bias And the approach preventing member protrudes from the front of the moving shelf in the moving direction toward the next moving shelf, so that the same effect as the invention according to claim 1 can be obtained, and power failure due to an earthquake or the like can be obtained. Even if it does, the approach blocking member automatically assumes a protruding position due to shaking such as an earthquake, and it is possible to reliably ensure the safety of the worker in the work passage. Further, according to the fourth aspect of the invention, Oite the inventions of claim 1 or 2, wherein the lever swinging by the earthquake shaking, etc. is provided by having a weight, is approaching the blocking member by swinging of the lever Since the movable shelf protrudes from the front in the moving direction to the next movable shelf, even if a power failure occurs due to an earthquake or the like, the approach preventing member automatically takes a protruding position due to the shaking of the earthquake and the work path. It is possible to ensure the safety of workers inside the building.

According to the fifth aspect of the present invention, the access blocking member is provided so as to be slidable in the longitudinal direction, is urged to project toward the adjacent moving shelf, and is engaged in a position retracted from the front surface of the shelf. Being held in an evacuation position, the machine during an earthquake
The above-mentioned engagement is disengaged by the typical vibration, and the urging force causes the slide to slide from the front in the moving direction to the next moving shelf, and to protrude from the front in the moving direction to the next moving shelf. Even if you forget or neglect to set the access-prevention member to the adjacent shelf in the protruding position when trying to enter / exit items in the work passage, if the shelf shakes significantly due to an earthquake, etc., access will be blocked. The member automatically assumes a protruding position, so that the safety of the worker in the work passage can be reliably ensured.

[0068] According to the invention of claim 6, claim 1 or
Others Oite the inventions of the second aspect, the movable rack is motorized, when approaching the blocking member is in the state position protruding from the moving direction toward the front toward the movable shelf next, the proximity blocking member protrudes Interlocking the moving shelves facing the aisle, so that even if a person other than the worker in the working aisle attempts to move the shelves during normal operation or when the earthquake has subsided, the above approach The movable shelf facing the passage from which the blocking member protrudes cannot move, so that the safety of the worker in the work passage can be ensured.

[0069] According to the invention of claim 7, claim 1 or
Others Oite the inventions of the second aspect, the movable rack is motorized, approaching blocking member provided at the tip portion of there and approaches the blocking member to the state position protruding from the moving direction toward the front toward the movable shelf next The detection signal of the contact sensor stops the power supply to the drive motor of the movable shelf facing at least the work passage where the access blocking member projects, so that the safety of the worker or the like who touches the tip of the access blocking member is reduced. It is possible to prevent a problem that the power is continuously supplied to the drive motor despite the fact that the access blocking member blocks the approach to the adjacent shelf, thereby preventing the drive motor from burning. Can be.

According to the invention of claim 8 , according to claim 1 or 2,
Oite the inventions of others 2, wherein the movable rack is motorized, the contact sensor is provided at a position distal end surface facing the approaching blocking member of the shelf facing the approaching blocking member in a protruding state position,
Since the power supply to the drive motor of the movable shelf facing at least the work passage where the approach preventing member protrudes is stopped by the detection signal of the contact sensor, the same effect as the invention according to claim 7 can be obtained. it can.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a moving shelf according to the present invention.

FIG. 2 is a side view showing the embodiment in more detail;

FIG. 3 is an enlarged side view showing a main part of the embodiment.

FIG. 4 is a side view showing a main part of another embodiment of the moving shelf according to the present invention.

FIG. 5 is a side view showing a main part of still another embodiment of the moving shelf according to the present invention and its modification.

FIG. 6 is a partial cross-sectional side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 7 is a side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 8 is a partial cross-sectional side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 9 is a partial cross-sectional side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 10 is a partial cross-sectional side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 11 is a partial cross-sectional side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 12 is a bottom view showing an example of a moving shelf applicable to the present invention.

FIG. 13 is an enlarged bottom view showing a clutch mechanism of the movable shelf;

FIG. 14 is a partial cross-sectional side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 15 is a partial cross-sectional side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 16 is a partial cross-sectional side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 17 is a side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 18 is a side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 19 is a cross-sectional view showing examples of various cross-sectional shapes of the access prevention member applicable to the present invention.

FIG. 20 is a side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 21 is a side view showing a main part of still another embodiment of the moving shelf according to the present invention.

FIG. 22 is a side view showing a main part of still another embodiment of the moving shelf according to the present invention.

[Explanation of symbols]

 Reference Signs List 2 Moving shelf 5 Access blocking member 20 Weight 40 Access blocking member 48 Access blocking member 56 Contact sensor 62 Contact sensor 90 Braking means 91 Cylinder as braking means 100 Cylinder as braking means

Continuation of the front page (56) References JP-A-9-108048 (JP, A) JP-A-56-136506 (JP, A) JP-A-57-11610 (JP, A) , U) Japanese Utility Model Showa 64-47234 (JP, U) Japanese Utility Model Showa 55-148439 (JP, U) Japanese Utility Model Showa 57-79444 (JP, U) Japanese Patent Publication 55-51570 (JP, B2) Japanese Utility Model Japanese Utility Model 1-16425 (JP, Y2)

Claims (8)

(57) [Claims] 1. A movement having a protruding position that protrudes from a front surface in a moving direction toward an adjacent moving shelf and can prevent an approach to an adjacent moving shelf, and an access preventing member that can assume a retracting position. in the shelf, the proximity blocking member is retained along with the provided rotatably in a vertical plane about an axis to temporarily retreat state position I by <br/> the frictional resistance between the shaft, an earthquake Mechanical vibration
The moving shelf, wherein the temporary holding in the retreating position is released by movement, and the moving shelf takes a position protruding from the front surface in the moving direction toward the adjacent moving shelf. 2. A movement having an approach preventing member that can project from a front surface in a moving direction toward an adjacent moving shelf and can prevent an approach to the adjacent moving shelf and a retracted position. in the shelf, the proximity blocking member is held in a provisionally retracted state position the movable rack body hook et <br/> is in conjunction provided rotatably in a vertical plane about the axis, the machine during an earthquake Typical shake
The moving shelf, wherein the temporary holding in the retracted position is released by the movement, and the moving shelf takes a position protruding from the front surface in the moving direction toward the adjacent moving shelf. 3. A weight or a spring is connected to the access preventing member.
Of the access blocking member due to mechanical vibration during the earthquake.
The release of the temporary holding in the evacuation position releases
Or spring acts as a rotational urging force,
3. The moving shelf according to claim 1, wherein the projecting portion projects from a front surface in a moving direction of the moving shelf toward an adjacent moving shelf. 4. The use of a weight to provide a mechanical
Is provided with a lever that swings due to
The movable shelf according to claim 1 or 2 , wherein the provisional holding in the retracted position is released by the shaking, and the provisional holding member is released from the front in the moving direction of the movable shelf toward the adjacent movable shelf. 5. The moving direction from the front to the next moving shelf
Projection that can prevent approach to the next movable shelf
An access blocking member that can take the posture and the evacuation posture
The mobile rack with, the proximity blocking member, et slidable longitudinally
At the same time as it is projected toward the next movable shelf,
Engaged in the retracted position from the front and held in the retracted position
Is disengaged by mechanical vibration during an earthquake
Movable rack, characterized in that the sliding from the moving direction toward the front toward the moving rack next to the force <br/> projects. 6. The movable shelf is electrically operated, and when the access blocking member is in a position protruding from a front surface in the moving direction toward an adjacent moving shelf, the movable shelf faces a passage from which the access blocking member protrudes. 3. The moving shelf according to claim 1, wherein an interlock is applied to the moving shelf. 7. The moving shelf is electrically driven, and the access blocking member is
In a position protruding from the front in the moving direction to the next moving shelf
Of the contact sensor provided at the tip of the
Work that at least the access prevention member protrudes at the output signal
Power supply to the drive motor of the moving shelf facing the passage is stopped.
The moving shelf according to claim 1 or 2, wherein: 8. The moving shelf is motorized and in a protruding position.
The tip surface of the above-mentioned access blocking member of the shelf facing the access blocking member
A contact sensor is provided at a position facing the contact sensor.
The detection signal from the
To the drive motor of the moving shelf facing the work passage
The moving shelf according to claim 1 or 2, wherein