JP6930857B2 - Mobile shelf lock device - Google Patents

Description

The present invention relates to a moving shelf locking device.

Conventionally, in offices and the like, mobile shelves have been provided that effectively utilize the limited space and efficiently store items such as documents. The moving shelves are installed in front of a plurality of fixed shelves installed side by side, for example. When using the fixed shelves in the back row, the worker moves the moving shelves in the front row in the lateral direction and enters the work space formed by the moving shelves to perform the work. Here, if another worker moves the moving shelf or the moving shelf moves due to an earthquake or the like while the worker is working in the work space, the work space is narrowed and the worker comes into contact with the moving shelf. There is a risk.

Therefore, conventionally, a technique for suppressing (locking) the movement of the moving shelf has been proposed. For example, Patent Document 1 discloses a mobile shelf regulation device that regulates the movement of a mobile shelf. The moving shelf regulation device is provided on a base portion arranged between a pair of guide rails. For example, when an operator steps on one end of a pedal portion constituting a moving shelf regulating device in a work space, the other end of the pedal portion projects upward from the upper surface of the base portion and comes into contact with the side surface of the moving shelf. It will be possible. According to the above configuration, the worker can regulate the movement of the moving shelf by operating the moving shelf regulating device when entering the work space and performing the work.

Japanese Unexamined Patent Publication No. 2013-78427

However, in the technique of Patent Document 1, since the moving shelf regulating device must be incorporated inside the base portion, the configuration of the entire moving shelf becomes complicated. Further, since the operator must step on the pedal portion after entering the work space in order to lock the moving shelf, he / she is forced to perform a troublesome operation. Further, it is conceivable that the worker forgets the operation of locking the moving shelf and performs the work, or consciously omits the operation and performs the work, and it is difficult to ensure safety.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a locking device capable of locking a moving shelf with a simple configuration and operation.

In order to solve the above problems, the moving shelf locking device according to the present invention is a moving shelf locking device having wheels traveling on a rail, and the moving shelf passes above the moving shelf and an operator rides on the moving shelf. The tread plate and the back surface of the tread plate are provided with an urging portion that applies an urging force in the first direction upward from the floor surface, and a force in the second direction that opposes the urging force is provided on the upper surface of the tread plate in the work space. During the first state where It is characterized in that the moving shelf can be moved to the working space during the second state in which the force in the second direction is not applied to the upper surface of the tread plate.

According to the above configuration, for example, when an operator enters the work space and gets on the tread plate, the side surface of the tread plate can come into contact with the moving shelf, so that the moving shelf can be locked and the worker gets off the tread plate. By leaving the work space, the moving shelves are unlocked and the moving shelves can move above the treads. Therefore, according to the lock device, the moving shelf can be locked by a simple configuration and operation.

Here, in the moving shelf locking device according to the present invention, the first state is a state in which the worker is on the tread plate in the work space, and the second state is the state in which the worker is in the work space. It can be in a state where it is not on the tread.

Further, in the moving shelf locking device according to the present invention, when a force in the second direction is applied to the upper surface of the tread plate in the work space, the tread plate moves in the second direction to cause a side portion of the tread plate. Can be configured to be able to come into contact with the side portion of the moving shelf.

Further, in the moving shelf locking device according to the present invention, the height from the floor surface to the upper surface of the tread plate and the height from the floor surface to the upper surface of the rail substantially coincide with each other during the first state. May be.

Further, in the moving shelf locking device according to the present invention, the urging force is applied to the front side of the tread plate on which the worker enters and exits, and the back surface of one of the rear sides on the opposite side of the tread plate. At the other end of the front side and the rear side of the above, the tread plate may be rotatably fixed in the first direction and the second direction.

Further, in the moving shelf locking device according to the present invention, the locking device further includes a stopper installed on a trolley provided with the wheels, and the stopper extends from the bottom surface of the trolley toward the floor surface. It includes a first portion that exists and a second portion that extends from the first portion in a direction intersecting the moving direction of the moving shelf, and during the first state, from the floor surface to the tread plate. The height is substantially equal to the height from the floor surface to the second portion, and the side portion of the tread plate can come into contact with the second portion, while the floor surface to the second portion is in contact with the second portion. The height to the lower surface of the tread plate is higher than the height from the floor surface to the second portion, and the second portion can move between the floor surface and the tread plate as the moving shelf moves. It may have a certain configuration.

Further, in the moving shelf locking device according to the present invention, when the second portion is present between the floor surface and the tread plate and a force in the second direction is applied to the upper surface of the tread plate, the above-mentioned The tread plate may move in the second direction and the back surface of the tread plate may come into contact with the upper surface of the second portion to suppress the movement of the moving shelf to the work space.

Further, in the moving shelf locking device according to the present invention, the stopper is detachably installed on the trolley with the moving shelf installed on the rail, and the tread plate has the moving shelf on the rail. It may be installed close to the rail while being installed in the rail.

Further, in order to solve the above problems, the moving shelf locking device according to the present invention is a moving shelf locking device having wheels traveling on a rail, and the moving shelf passes above the moving shelf and an operator A tread plate for riding is provided, and the tread plate includes a front portion through which an operator enters and exits, a rear portion on the opposite side of the front portion, and a rotating shaft portion provided between the front portion and the rear portion. When the worker gets on the front part of the tread plate in the work space, the front part rotates toward the floor surface with the rotation shaft portion as a fulcrum and sinks below the upper surface of the rail. The rear portion of the tread plate rotates in an upward direction opposite to the floor surface direction with the rotation shaft portion as a fulcrum and projects upward from the upper surface of the rail, so that the side portion of the rear portion becomes the moving shelf. The abutment is possible, so that the movement of the moving shelf to the work space is suppressed, and when the worker gets off the front part of the tread plate in the work space, the front part is the rotating shaft. The rear portion of the tread plate rotates in the direction of the floor surface with the rotating shaft portion as a fulcrum while rotating upward with the portion as a fulcrum to reach the same height as the upper surface of the rail. By having the same height as the upper surface, the moving shelf can be moved to the work space.

Further, in order to solve the above problems, the moving shelf locking device according to the present invention is a moving shelf locking device having wheels running on a rail, and the moving shelf passes above the moving shelf and an operator When a worker rides on the tread plate in the work space, the side portion of the tread plate can come into contact with the moving shelf, so that the movement of the moving shelf to the work space is suppressed. On the other hand, when the worker gets off the tread plate in the work space, the tread plate does not come into contact with the moving shelf, so that the moving shelf can be moved to the work space. ..

According to the moving shelf locking device according to the present invention, the moving shelf can be locked by a simple configuration and operation.

It is a perspective view which shows the schematic structure of the moving shelf system which concerns on this embodiment. It is a perspective view which shows the schematic structure of the fixed base in the said moving shelf system. It is a figure which shows the specific structure of the tread plate in the lock device which concerns on this embodiment, (a) is the plan view of the tread plate, (b) is the A arrow view of (a). 2 is a view taken from arrow B in FIG. 2, where (a) shows a state in which the worker is not on the tread (second state), and (b) is a state in which the worker is on the tread (first state). Shown. It is a figure which shows the specific structure of the carriage in the moving shelf which concerns on this embodiment, (a) is the plan view of the carriage, (b) is the C arrow view of (a), (c) is It is a D arrow view of (a). It is a side view which shows the state when the worker is not on a tread (second state) in the said moving shelf system. It is a partially enlarged view of FIG. It is a figure which shows the state in the process of moving a moving shelf in the said moving shelf system. It is a side view which shows the state when the worker is on a tread (first state) in the said moving shelf system. FIG. 9 is a partially enlarged view of FIG. It is a perspective view which shows the state before a worker gets on a tread board in the said moving shelf system. FIG. 5 is a side view showing another state when an operator is on a tread (first state) in the moving shelf system. It is a partially enlarged view of FIG. It is a perspective view which shows the other structure of the stopper in the said lock device. It is a side view which shows the state of the lock device which concerns on the modification of the said mobile shelf system when the worker is not on a tread (second state). It is a side view which shows the state of the lock device which concerns on the modification | modification when the worker is on a tread (first state) in the said moving shelf system.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a schematic configuration of a moving shelf system according to the present embodiment. The movable shelf system is installed on a floor surface, a plurality of movable shelves 1 installed so as to be movable in the lateral direction (frontage direction), a plurality of fixed shelves 2 fixedly installed behind the plurality of movable shelves 1. It is provided with a fixed base 3 and a fixed base 3. Further, the moving shelf system includes a locking device that regulates the movement of the moving shelf 1. The number of moving shelves 1 and fixed shelves 2 is not limited, but the number of moving shelves 1 is smaller than the number of fixed shelves 2.

The fixed base 3 includes a pair of front and rear rails 31A and 31B arranged under the moving shelf 1, and a plurality of tread plates 32 installed between the rails 31A and 31B. The fixed base 3 is fixed to the floor surface. The pair of rails 31A and 31B are arranged in parallel with each other along the horizontal direction shown in FIG. 1, and the plurality of tread plates 32 are arranged in the horizontal direction. Further, the tread plate 32 is a portion on which the operator rides when using the fixed shelf 2 in the back row, and serves as a work floor in the work space in front of the fixed shelf 2. The tread plates 32 are divided and installed by the same number as the fixed shelves 2, and in the example shown in FIG. 1, three tread plates 32 are installed.

The moving shelf 1 includes a trolley 11 movably mounted on the rails 31A and 31B, and a moving shelf main body 12 (storage) mounted and fixed on the trolley 11. The carriage 11 includes four wheels 111 (see FIG. 5) traveling on the rails 31A and 31B. The movable shelf 1 is configured to be movable in the lateral direction (see FIG. 1) by a manual operation of an operator. The moving shelf 1 moves laterally above the tread plate 32.

The fixed shelf 2 includes a rear base 21 mounted and fixed on the rear side of the fixed base 3, and a fixed shelf main body 22 (storage) mounted and fixed on the rear base 21. ..

The moving shelf main body 12 and the fixed shelf main body 22 shown in FIG. 1 show a cabinet with a door, but the type of storage is not limited. The moving shelf system shown in FIG. 1 shows a horizontal slide method in which the moving shelf 1 moves in the width (frontage) direction of the moving shelf main body 12.

FIG. 2 is a perspective view showing a schematic configuration of the fixed base 3. The fixed bases 3 are integrally formed in the front-rear direction, and the same number (three in this case) as the fixed shelves 2 are installed. The tread plate 32 is installed on the front side of the fixed base 3 so as to be movable in the upward direction (first direction) and the downward direction (second direction). Note that FIG. 2 shows one rear base 21 on which one fixed shelf 2 is placed.

FIG. 3 is a diagram showing a specific configuration of the tread plate 32. FIG. 3A is a plan view of the tread plate 32, and FIG. 3B is a view taken along the arrow A of FIG. 3A (side view). The tread plate 32 includes a tread plate main body 320, a spring 321 (biased portion) (for example, a compression coil spring) provided on the front back surface of the tread plate main body 320, and a regulation portion 322 provided on the front back surface of the tread plate main body 320. It is provided with a rotating shaft portion 323 provided on the side surface of the rear end portion of the tread plate main body 320. One spring 321 is provided on the front side in the depth direction and near the center in the width direction of the tread plate main body 320, and one regulating portion 322 is provided on the front side of the spring 321 and near both ends in the width direction. One 323 is provided at the rear end in the depth direction and near both ends in the width direction of the tread plate main body 320. As shown in FIG. 3B, the regulating portion 322 includes a regulating portion side plate 322A extending in the second direction from the back surface of the tread plate main body 320, and a regulating portion bottom plate 322B extending forward from the regulating portion side plate 322A. It has. As shown in FIG. 2, the tread plate 32 is attached between the rails 31A and 31B after the pair of rails 31A and 31B are installed. One end (upper end) of the spring 321 is screwed and fixed to the back surface of the front side of the tread plate main body 320 (see FIG. 3 (b)), and the other end (lower end) of the spring 321 is in contact with the intermediate frame 33 of the fixed base 3. It is touched (see FIG. 2).

4A and 4B are arrow views (side views) of FIG. 2, FIG. 4A shows a state in which the worker is not on the tread 32 (second state), and FIG. 4B shows the worker. Indicates a state (first state) on which the tread plate 32 is placed.

As shown in FIG. 4, the fixed base 3 further includes a rail cover 31D that receives and fixes the rail 31A, and a rail cover 31C that receives and fixes the rail 31B. The rail cover 31C includes an opening 311C into which the rotating shaft portion 323 of the tread plate 32 is inserted. The rail cover 31D includes a bottom plate 311D on which the rail 31A is placed, and a side plate 312D that rises upward (first direction) from the bottom plate 311D.

As shown in FIG. 4A, in the tread plate 32, the rotation shaft portion 323 is inserted into the opening 311C of the rail cover 31C, and the regulation portion bottom plate 322B of the regulation portion 322 is under the bottom plate 311D of the rail cover 31D. It is installed on the fixed base 3 so that it can be inserted. In the state shown in FIG. 4A, the spring 321 always applies an urging force (arrow in the figure) to the back surface of the tread plate 32 (tread plate main body 320) in the first direction upward from the floor surface. As a result, the regulating portion bottom plate 322B of the regulating portion 322 is in contact with the back surface of the bottom plate 311D. Further, in the state shown in FIG. 4A, the upper surface of the front end portion of the tread plate 32 is higher than the upper surface of the rear end portion of the tread plate 32, the upper surfaces of the rails 31A and 31B, and the upper surface of the fixed base 3 by a height H1. A gap 324 is formed between the tread plate 32 and the side plate 312D of the rail cover 31D.

In the state shown in FIG. 4B, when the operator rides on the tread plate 32, a force in the second direction that opposes the urging force is applied to the upper surface of the tread plate 32 (tread plate main body 320). As a result, the spring 321 contracts, and the tread plate 32 rotates (moves) in the second direction toward the floor surface with the rotation shaft portion 323 as a fulcrum. The tread plate 32 stops rotating when the back surface (lower surface) of the front end portion abuts on the upper surface of the side plate 312D of the rail cover 31D. In the state shown in FIG. 4B, the upper surface of the front end portion of the tread plate 32 is at the same height as the upper surface of the rear end portion of the tread plate 32, the upper surfaces of the rails 31A and 31B, and the upper surface of the fixed base 3, and the tread plate 32 The gap 324 (see FIG. 4A) between the rail cover 31D and the side plate 312D of the rail cover 31D is eliminated. When the operator gets off the tread 32, the tread 32 is brought back into the state shown in FIG. 4 (a) by the urging force in the first direction (arrow in FIG. 4 (a)) by the spring 321.

In this way, the tread plate 32 moves (rotates) by a distance corresponding to the gap 324 according to the getting on and off of the operator, and repeats the state of FIG. 4A and the state of FIG. 4B.

FIG. 5 is a diagram showing a specific configuration of the dolly 11. 5 (a) is a plan view of the dolly 11, FIG. 5 (b) is a view taken along the arrow C of FIG. 5 (a), and FIG. 5 (c) is a D of FIG. 5 (a). It is an arrow view (side view). The dolly 11 has four wheels 111 arranged at the four corners, a stopper 112 extending in the moving direction (lateral direction) of the dolly 11, and four wheels attached to the ends of side plates extending in the depth direction. It is provided with a cushioning rubber 113. As shown in FIG. 5C, the stopper 112 has a first portion 112A extending from the bottom surface of the trolley 11 toward the floor surface (in the second direction), and a moving direction of the trolley 11 from the first portion 112A. It is provided with a second portion 112B extending rearward in a direction intersecting with (here, a depth direction), and is fixed to a member constituting the carriage 11. Further, the stopper 112 is provided so that the tip of the second portion 112B is inserted into the gap 324 (see FIG. 4A) when the carriage 11 is mounted on the rails 31A and 31B. , Fixed to the trolley 11 (see FIG. 6). The moving shelf body 12 is placed and fixed on the upper surface of the carriage 11.

FIG. 6 is a side view showing a state of the moving shelf system when the operator is not on the tread 32 (second state). The fixed base 3 shown in FIG. 6 shows the same state as in FIG. 4 (a). FIG. 7 is a partially enlarged view of FIG. 6 and 7 show the right side surface of the moving shelf 1 (including the trolley 11) at the right end of FIG. 1 and the right side surface of the tread plate 32 (work floor) in the center of FIG.

As shown in FIGS. 6 and 7, when the operator is not on the tread 32 (work floor), the second portion 112B of the stopper 112 is in a state of not abutting on the tread 32, so that the gap 324 (FIG. 6). The inside of the moving shelf 1 can be moved (see 7), and the moving shelf 1 can be moved in the horizontal direction (perpendicular to the paper surface of FIGS. 6 and 7). The positional relationship between the second portion 112B of the stopper 112 and the left and right treads 32 of the treads 32 on the work floor is the same. FIG. 8 shows a state in which the moving shelf 1 is moving above the tread 32 of the work floor. As shown in FIG. 8, when the operator applies a lateral force to the moving shelf 1, the moving shelf 1 moves laterally while the second portion 112B of the stopper 112 moves in the gap 324. As shown in FIG. 6, a fall prevention metal fitting 114 for preventing the moving shelf 1 from falling forward may be provided on the carriage 11.

FIG. 9 is a side view showing a state of the moving shelf system when the operator is on the tread 32 (first state). The fixed base 3 shown in FIG. 9 shows the same state as in FIG. 4 (b). FIG. 10 is a partially enlarged view of FIG. In FIGS. 9 and 10, similarly to FIGS. 6 and 7, the right side of the moving shelf 1 (including the dolly 11) at the right end of FIG. 1 and the right side of the tread 32 (work floor) in the center of FIG. Shows a face.

As shown in FIGS. 9 and 10, when the operator gets on the tread 32 (work floor), the tread 32 moves in the second direction by a distance (H1) corresponding to the gap 324 (see FIG. 4A). As it rotates, the back surface of the front end portion of the tread plate 32 comes into contact with the upper surface of the side plate 312D of the rail cover 31D and is fixed. As a result, the height from the floor surface to the center (vertical direction) of the front end portion of the tread 32 (work floor) and the height from the floor surface to the center (vertical direction) of the second portion 112B of the stopper 112 become substantially equal. , The side surface of the front end portion of the tread plate 32 (work floor) can come into contact with the side surface of the second portion 112B. For example, in the state shown in FIG. 11, when the moving shelf 1 is moved to the left after the operator gets on the tread 32, the side surface of the front end portion of the tread 32 hits the side surface of the second portion 112B of the stopper 112. Touch. As a result, the movement of the moving shelf 1 to the left (work space) is suppressed (locked). In FIG. 11, for convenience of explanation, the tread plate 32 directly below the moving shelf 1 is omitted.

Here, the condition for the second portion 112B of the stopper 112 to be movable inside the gap 324 (condition for the moving shelf 1 to be movable) when the operator is not on the tread 32 is, for example, When no force in the second direction is applied to the upper surface of the tread 32 (when the operator is not on the tread 32), the height from the floor surface to the center of the second portion 112B of the stopper 112 is the floor. It is higher than the height from the surface to the upper surface of the side plate 312D of the rail cover 31D, and lower than the height from the floor surface to the back surface (lower surface) of the front end portion of the tread plate 32 (see FIGS. 4 and 7). That is, the second portion 112B of the stopper 112 may be contained within the gap 324. On the other hand, the condition (condition for locking the moving shelf 1) for allowing the side surface of the front end portion of the tread plate 32 and the side surface of the second portion 112B to come into contact with each other when the operator is on the tread plate 32 is For example, when a force in the second direction is applied to the upper surface of the tread 32 (when the operator is on the tread 32), the height from the floor surface to the center of the second portion 112B of the stopper 112 is determined. It is higher than the height from the floor surface to the back surface of the front end portion of the tread plate 32, and lower than the height from the floor surface to the upper surface of the front end portion of the tread plate 32. That is, when viewed from the side surface (see FIG. 10), the tip end portion of the second portion 112B of the stopper 112 may be superimposed on the side surface of the front end portion of the tread plate 32. The shapes and external dimensions of the tread plate 32 and the stopper 112 may be appropriately set within a range satisfying each of the above conditions. In the state where the moving shelf 1 is locked, the front end portion of the tread plate 32 and the second portion 112B of the stopper 112 may be in contact with each other on their respective sides, or a part of each side surface may be partially in contact with each other. It may come into contact. That is, the front end portion of the tread plate 32 and the second portion 112B of the stopper 112 may be brought into contact with each other (including a side surface and a part of the side surface).

The lock device according to the present embodiment includes a tread plate 32 and a stopper 112 installed on the carriage 11. The operation of the lock device of the moving shelf 1 when the operator uses the moving shelf system will be described below.

First, when the worker stores an article in the fixed shelf 2 in the back row (for example, the central fixed shelf 2 shown in FIG. 1), the worker moves the moving shelf 1 located in front of the fixed shelf 2 in the lateral direction. Secure a work space (the front central part shown in FIG. 1). At this time, it is preferable to secure a work space having a frontage that is at least the width (horizontal length) of the tread plate 32 or more. As a result, the entire central tread 32, which is the work floor, is exposed (see FIG. 1). Next, the worker enters the work space and gets on the tread 32 of the work floor. Then, the tread plate 32 of the work floor moves (rotates) downward (second direction) due to the weight of the operator and comes into contact with the upper surface of the side plate 312D of the rail cover 31D (see FIG. 4B). The state shown in FIG. 10 is obtained. As a result, the side surface of the front end portion of the tread plate 32 can come into contact with the side surface of the second portion 112B of the stopper 112, so that the moving shelves 1 located on the left and right sides of the operator are locked, and the moving shelves 1 can be moved to the work space. Movement is restrained (regulated). The worker stores the article on the fixed shelf 2 in the secured work space. Next, when the work is completed, the worker gets off the tread 32 and exits from the work space. Then, the tread plate 32 moves (rotates) upward (first direction) by the urging force of the spring 321 and the regulating portion 322 comes into contact with the back surface of the bottom plate 311D (see FIG. 4A), and FIGS. 6 and 7 It becomes the state shown in. As a result, the moving shelves 1 located on the left and right sides of the worker are unlocked, and the moving shelves 1 can be moved to the left and right.

The operation of the lock device of the moving shelf 1 is not limited to the above operation. For example, it is conceivable that the worker works in a work space having a frontage smaller than the width (horizontal length) of the tread 32. In this case, as shown in FIG. 8, a part of one tread 32 serving as a work floor is covered with the moving shelf 1, and the second portion 112B of the stopper 112 is the gap 324 of the tread 32 (FIG. 4 (a). ) Refer to). When an operator enters the work space and gets on the tread 32 (work floor) in this state, the tread 32 moves (rotates) downward (second direction) due to the weight of the operator, and the front end of the tread 32. The back surface of the stopper 112 comes into contact with the upper surface of the second portion 112B of the stopper 112, resulting in the state shown in FIG. FIG. 13 is a partially enlarged view of FIG. In the state shown in FIGS. 12 and 13, a force corresponding to the weight of the operator is always applied to the upper surface of the second portion 112B of the stopper 112. As a result, the left and right movement of the moving shelf 1 is suppressed by the frictional force of the contact surface between the tread plate 32 and the stopper 112. When the work is completed and the operator gets off the tread 32, the tread 32 moves (rotates) upward (first direction) due to the urging force of the spring 321 and the regulating portion 322 comes into contact with the back surface of the bottom plate 311D (FIG. 4 (a)), the state shown in FIGS. 6 to 8 (second state) is obtained. As a result, the moving shelves 1 located on the left and right sides of the worker are unlocked, and the moving shelves 1 can be moved to the left and right.

According to the configuration of the lock device according to the present embodiment, for example, the moving shelf 1 can be locked or unlocked only by a worker entering and exiting the work space. That is, according to the above configuration, the operator does not need to perform a special operation for locking and unlocking the moving shelf 1. Further, regardless of the position where the moving shelf 1 exists, the moving shelf 1 can be locked by the operator entering the work space. For example, even when the moving shelf 1 exists at an intermediate position where a work space smaller than the width of the tread 32 is formed as shown in FIG. 8, the moving shelf 1 can be locked. Therefore, according to the lock device according to the present embodiment, the moving shelf 1 can be locked by a simple configuration and operation. Further, since the moving shelf 1 is locked without the operator being aware of it, the safety of the operator in the work space can be improved as compared with the conventional configuration.

The moving shelf system and the locking device according to the present invention are not limited to the above configurations, and may have the configurations shown below.

For example, the locking device according to the present invention may have a configuration that can be attached to an existing mobile shelf system. For example, according to the configuration of the tread plate 32 shown in FIG. 3, the existing tread plate can be easily replaced with the tread plate 32 shown in FIG. 3 by the method shown in FIG. Further, by configuring the stopper 112 shown in FIG. 5 as shown in FIG. 14, the stopper 112 shown in FIG. 14 can be attached to the existing moving shelf. The stopper 112 shown in FIG. 14 has a stopper side plate 112C that comes into contact with the side surface of the trolley 11, a screw hole 112E for screwing together with the cushioning rubber 113, and a stopper that extends from the stopper side plate 112C toward the bottom surface of the trolley 11. It includes a bottom plate 112D, a first portion 112A extending from the stopper bottom plate 112D toward the floor surface (in the second direction), and a second portion 112B extending rearward from the first portion 112A in the depth direction. .. The first portion 112A and the second portion 112B shown in FIG. 14 have the same functions as the first portion 112A and the second portion 112B shown in FIG. According to the above configuration, by attaching the lock device (tread plate and stopper) to the existing moving shelf system in which the moving shelf is installed on the rail, the existing moving shelf can be locked by a simple configuration and operation. Becomes possible.

Further, in the lock device described above, when the operator is not on the tread plate 32 (second state), the upper surface of the front end portion of the tread plate 32 is the upper surface of the rear end portion of the tread plate 32, and the upper surfaces of the rails 31A and 31B. , And the configuration is such that the height H1 is higher than the upper surface of the fixed base 3 (see FIG. 4A), but the locking device according to the present invention is not limited to this. For example, in the locking device according to the present invention, in the second state, the upper surface of the front end portion of the tread plate 32 is the same as the upper surface of the rear end portion of the tread plate 32, the upper surfaces of the rails 31A and 31B, and the upper surface of the fixed base 3. When the height is reached and the operator is on the tread 32 (first state), the upper surface of the front end of the tread 32 is the upper surface of the rear end of the tread 32, the upper surfaces of the rails 31A and 31B, and the upper surface of the rails 31A and 31B. It may be configured so as to be lower than the upper surface of the fixed base 3 by the height H1. As yet another configuration, in the second state, the upper surface of the front end portion of the tread plate 32 is higher than the upper surface of the rear end portion of the tread plate 32, the upper surfaces of the rails 31A and 31B, and the upper surface of the fixed base 3 (H1). In the first state, the upper surface of the front end portion of the tread plate 32 is higher than the upper surface of the rear end portion of the tread plate 32, the upper surfaces of the rails 31A and 31B, and the upper surface of the fixed base 3 (H1). It may be configured to be lowered by / 2. When adopting these configurations, the length of the regulation portion side plate 322A of the regulation portion 322 and the length of the first portion 112A of the stopper 112 may be appropriately adjusted.

Further, the lock device described above has a configuration in which the stopper 112 is provided in front of the carriage 11 and the tread plate 32 rotates in the first direction and the second direction with the rear as a fulcrum (rotation axis) (FIGS. 6 and 6). (See FIG. 9), but the locking device according to the present invention is not limited to this. For example, the lock device according to the present invention has a configuration in which a stopper 112 is provided behind the carriage 11 and the tread plate 32 rotates in the first direction and the second direction with the front as a fulcrum (rotation axis). There may be. Further, the lock device according to the present invention may have a configuration in which the rotating shaft portion 323 is omitted and the tread plate 32 moves in the first direction and the second direction in parallel with the floor surface. In this case, one spring 321 may be provided at the center of the tread 32 (width direction and depth direction), or a plurality of springs 321 may be provided before and after the depth direction.

Further, in the lock device described above, the number of treads 32 is the same as that of the fixed shelves 2, but the number of treads 32 is not limited to this, and may be one, for example. Specifically, one tread plate 32 having the same length as the rails 31A and 31B may be installed between the rails 31A and 31B. In this case, regardless of the position of the moving shelf 1, when the operator enters the work space and gets on the desired place of the tread 32, the locking device is in the state shown in FIGS. 12 and 13 and the moving shelf 1 is locked. Will be done. In this configuration, since the entire tread plate 32 moves in the second direction (downward), all the moving shelves 1 can be locked at the same time.

Further, in the operation of the lock device described above, an example in which the moving shelf 1 is locked when the operator gets on the tread 32 is shown, but the method of locking the moving shelf 1 is not limited to this, for example, on the tread 32. The moving shelf 1 may be locked by placing luggage or the like on the. As a result, the moving shelf 1 can be locked at all times when there is no worker.

Further, in the above-mentioned moving shelf system, the moving shelf 1 is installed in the front row and the fixed shelf 2 is installed in the rear row of the two front and rear rows, but the moving shelf system of the present invention is not limited to this. For example, the moving shelf system is composed of three rows, a front row, a middle row, and a back row, and a moving shelf 1 may be installed in the front row and the middle row, and a fixed shelf 2 may be installed in the back row. In this case, the locking device of the present invention is installed on the moving shelves 1 in the middle row and the front row.

Further, in the moving shelf system described above, two rails are provided on the fixed base 3, but the moving shelf system of the present invention is not limited to this. For example, in the moving shelf system according to the present invention, one rail on which two wheels installed on the carriage 11 run is installed on the fixed base 3, and a roller is installed on the upper part of the moving shelf 1. A guide rail for guiding the roller may be installed on the upper part of the fixed shelf 2.

Further, the above-mentioned moving shelf system is a horizontal slide system, but the moving shelf system of the present invention is not limited to this. For example, the moving shelf system may be a vertical slide system in which the moving shelf 1 moves in the depth direction of the moving shelf main body 12.

Further, in the moving shelf system, the fixed shelf main body 22 may be installed directly on the floor surface behind the moving shelf 1. Further, the fixed shelf 2 is not installed, and the moving shelf 1 may be installed along the wall surface.

Further, the locking device according to the present invention may have the configuration (modification example) shown in FIGS. 15 and 16. FIG. 15 is a side view showing a state of the lock device according to a modified example when the worker is not on the tread 32 (second state), and FIG. 16 is a side view showing the state of the lock device when the worker is on the tread 32 (second state). It is a side view which shows the state of the lock device which concerns on the modification of the 1st state). The tread 32 of the lock device according to the modified example includes a first spring 321A provided on the back surface of the front portion of the tread plate main body 320, a second spring 321B provided on the back surface of the rear portion of the tread plate main body 320, and a first spring 321A. A rotating shaft portion 325 provided between the second spring 321B (for example, the center of the side surface of the tread plate 32) is provided. Further, the stopper of the lock device according to the modified example includes a first stopper 112 provided at the front portion of the carriage 11 and a second stopper 115 provided at the rear portion of the carriage 11. The first stopper 112 and the second stopper 115 include first portions 112A and 115A and second portions 112B and 115B, respectively.

The first spring 321A always applies an urging force (arrow in the figure) to the back surface of the front portion of the tread plate 32 (tread plate main body 320), and the second spring 321B always gives an urging force (arrow in the figure) to the rear portion of the tread plate 32 (tread plate main body 320). A urging force (arrow in the figure) is given to the back surface. The rotary shaft portion 325 is fixed to the fixed base 3 so that the tread plate 32 can rotate in the first direction and the second direction. The rotating shaft portion 325 may be connected to the rotating shaft portions of adjacent tread plates 325. As a result, when the operator is not on the tread 32, as shown in FIG. 15, the urging force is evenly applied to the front part and the rear part of the tread 32, so that the tread 32 is parallel to the floor surface. The upper surfaces of the front and rear portions of the tread 32 are maintained at the same height as the upper surfaces of the rails 31A and 31B, and the moving shelf 1 can be moved in the lateral direction (perpendicular to the paper surface of FIG. 15).

On the other hand, when an operator enters the work space and rides on the front portion of the tread plate 32 on the work floor in the state shown in FIG. 15, the front portion of the tread plate 32 depends on the weight of the operator with the rotating shaft portion 325 as a fulcrum. Moves (rotates) downward (second direction), and the rear portion of the tread 32 moves upward (first direction) (rotates). As a result, as shown in FIG. 16, the front portion of the tread plate 32 sinks below the upper surface of the rails 31A and 31B, and the rear portion of the tread plate 32 protrudes above the upper surface of the rails 31A and 31B. As described above, the tread plate 32 of the lock device according to the modified example has a so-called seesaw structure. As a result, as shown in FIG. 16, the rear side surface (side portion) of the tread plate 32 can come into contact with the side surface (side portion) of the second portion 115B of the second stopper 115, and thus rides on the tread plate 32. The moving shelves 1 located on the left and right of the worker are locked, and the movement of the moving shelves 1 to the work space side is suppressed. When the worker gets on the rear part of the tread plate 32, the rear part of the tread plate 32 moves downward and the front part of the tread plate 32 moves upward, so that the side surface (side) of the front part of the tread plate 32 is moved upward. The portion) can come into contact with the side surface (side portion) of the second portion 112B of the first stopper 112, and the moving shelves 1 located on the left and right of the operator are locked.

Further, when an operator enters a work space having a frontage smaller than the width (horizontal length) of the tread 32 and rides on the front part of the tread 32, the upper surface of the rear part of the tread 32 becomes visible. It abuts on the lower surface of the second portion 115B of the second stopper 115. As a result, the left and right movement of the moving shelf 1 is suppressed by the frictional force of the contact surface between the tread plate 32 and the second stopper 115.

The locking device according to the above modification has the configuration of the first spring 321A and the second spring 321B as long as the tread plate 32 is maintained in a state parallel to the floor surface when the operator is not on the tread plate 32. Either one may be omitted, or both may be omitted. Further, if the front portion or the rear portion of the tread plate 32 can come into contact with the side portion of the trolley 11 when the operator is on the tread plate 32, the first stopper 112 and the second stopper 115 may be omitted. ..

As described above, the locking device according to the present invention is characterized by having the following configurations, and includes each of the above-described forms and a form appropriately modified by those skilled in the art from each of the above-described forms. That is, the lock device according to the present invention includes a tread plate 32 on which the moving shelf 1 passes above and on which the operator rides, and a downward (second direction) force is applied to the upper surface of the tread plate 32 in the work space. (First state) (for example, when an operator gets on the tread 32 in the work space), for example, the side portion of the tread 32 can come into contact with the moving shelf 1 (FIGS. 10, 13, 13). 16), the movement of the moving shelf 1 to the work space is suppressed (locked), while the downward force is no longer applied to the upper surface of the tread 32 in the work space (second state) (for example, the operator). When the tread plate 32 gets off the tread 32 in the work space), for example, when the tread 32 does not come into contact with the moving shelf 1 (see FIGS. 6 and 15), the lock of the moving shelf 1 is released and the work of the moving shelf 1 is performed. It has a configuration that allows it to move into space (the moving shelf 1 can move above the tread 32). Thereby, the moving shelf can be locked by a simple configuration and operation.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and there are also embodiments appropriately modified by those skilled in the art from each of the above embodiments without departing from the spirit of the present invention. Needless to say, it is included in the technical scope of the present invention.

1 moving shelf, 2 fixed shelf, 3 fixed base, 11 dolly, 12 moving shelf body, 21 rear base, 22 fixed shelf body, 31A, 31B rail, 32 treads, 111 wheels, 112 stopper, 112A (stopper) 1st Part, 112B (stopper) second part, 321 spring (urging part), 322 regulating part, 323 rotating shaft part, 324 gap.

Claims (9)

It is a lock device for a moving shelf having a wheel running on a rail, a trolley provided with the wheel, and a moving shelf main body mounted on the trolley.
As the moving shelves pass above, the treads on which the workers ride and
On the back surface of the tread plate, an urging portion that applies an urging force in the first direction upward from the floor surface,
With
When the moving shelf passes the tread plate, a part of the trolley passes below the tread plate, and the part of the trolley passes below the tread plate.
During the first state in which a force in the second direction resisting the urging force is applied to the upper surface of the tread plate in the work space, the side portion of the tread plate can come into contact with the moving shelf. While the movement of the moving shelf to the work space is suppressed,
During the second state in which the upper surface of the tread plate in the work space is not subjected to the force in the second direction, the moving shelf can be moved to the work space.
A moving shelf lock device that features this. The first state is a state in which the worker is on the tread in the work space, and the second state is a state in which the worker is not on the tread in the work space.
The moving shelf locking device according to claim 1. When a force in the second direction is applied to the upper surface of the tread plate in the work space, the tread plate moves in the second direction so that the side portion of the tread plate can come into contact with the side portion of the moving shelf. Become,
The moving shelf locking device according to claim 1 or 2. During the first state, the height from the floor surface to the upper surface of the tread plate and the height from the floor surface to the upper surface of the rail are substantially the same.
The moving shelf locking device according to any one of claims 1 to 3, wherein the moving shelf is locked. The urging force is applied to the back surface of one of the front side of the tread where the worker enters and exits and the rear side which is the opposite side.
At the other end of the front side and the rear side of the tread plate, the tread plate is rotatably fixed in the first direction and the second direction.
The moving shelf locking device according to any one of claims 1 to 4, wherein the moving shelf is locked. The locking device, the installed stopper before Symbol table vehicle, further comprising,
The stopper includes a first portion extending from the bottom surface of the carriage toward the floor surface, and a second portion extending from the first portion in a direction intersecting the moving direction of the moving shelf.
During the first state, the height from the floor surface to the tread plate is substantially equal to the height from the floor surface to the second portion, and the side portion of the tread plate can come into contact with the second portion. On the other hand
During the second state, the height from the floor surface to the lower surface of the tread plate is higher than the height from the floor surface to the second portion, and the second portion moves as the moving shelf moves. Movable between the floor and the treads,
The moving shelf locking device according to any one of claims 1 to 5, wherein the moving shelf is locked. When a force in the second direction is applied to the upper surface of the tread plate when the second portion exists between the floor surface and the tread plate, the tread plate moves in the second direction and the tread plate is moved. By contacting the back surface of the second portion with the upper surface of the second portion, the movement of the moving shelf to the work space is suppressed.
The moving shelf locking device according to claim 6. The stopper is detachably installed on the trolley with the moving shelf installed on the rail.
The tread plate is installed close to the rail with the moving shelf installed on the rail.
The moving shelf locking device according to claim 6. A lock device for moving shelves with wheels running on rails.
As the moving shelves pass above, the treads on which the workers ride and
An urging portion that gives urging force to the back surface of the tread plate,
With
The tread plate is provided between a front portion through which an operator enters and exits, a rear portion on the opposite side of the front portion, and between the front portion and the rear portion, and a rotating shaft portion supported by a fixed base for fixing the rail. , With
When the worker gets on the front part of the tread plate in the work space, the front part rotates toward the floor surface with the rotation shaft portion as a fulcrum and sinks below the upper surface of the rail. The rear portion of the tread plate rotates in an upward direction opposite to the floor surface direction with the rotation shaft portion as a fulcrum and projects upward from the upper surface of the rail, so that the side portion of the rear portion becomes the moving shelf. By being able to come into contact with each other, the movement of the moving shelf to the work space is suppressed, while the movement of the moving shelf to the work space is suppressed.
When the operator descends from the front part of the tread plate in the work space, the front part is rotated upward with the rotation shaft portion as a fulcrum by the urging force of the urging portion, and the rail The height of the moving shelf is the same as that of the upper surface of the rail, and the rear portion of the tread plate rotates toward the floor surface with the rotating shaft portion as a fulcrum to be the same height as the upper surface of the rail. You can move to the work space,
A moving shelf lock device that features this.

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