JP2013176491A - Fall prevention device and storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fall prevention device reducing complexity in an operation and capable of surely preventing fall of a stored object in a storage space, and to provide a storage.SOLUTION: A fall prevention device includes: a fall prevention member 6 disposed between a storage space 17 of a storage body 1 and closed doors 2 and 3; a fall prevention member retaining mechanism 7 that retains the fall prevention member 6 movably between a retraction position (A) that allows to take a stored object F in and out from the storage body 1, and a fall prevention position (B) for preventing the moving of the stored object F stored in the storage body 1, in the falling direction; and a fall prevention member drive mechanism 8 that moves the fall prevention member 6 from the retraction position (A) to the fall prevention position (B) at least using an operation of closing the doors 2 and 3.

Description

  The present invention relates to a fall prevention device applied to a storage and the like, and a storage to which the fall prevention device is applied.

  2. Description of the Related Art Conventionally, as a storage used in an office or the like, a storage body that stores storage items in a storage space so that the storage can be taken in and out, a door that can be opened and closed at an opening of the storage body, and a position where the door is closed There is known a device provided with a latch mechanism for holding it (see, for example, Patent Document 1).

  However, with just this, when a large earthquake occurs, the stored items stored in the storage space may collide with the inner surface of the door, or the storage body may bend in the left-right direction. A relative twist may occur between the storage body and the door. For this reason, a large burden is generated on the latch mechanism, and the latch claw provided on the door may come off from the latch receiving portion provided on the storage body, or the latch claw itself may be damaged, thereby opening the door. . In such a case, the stored item falls from the storage space and the restoration work becomes difficult.

  As one measure for preventing such problems, for example, a fall prevention bar is provided on the front side of the storage space so that stored items stored in the storage space do not move to the door side. Conceivable. However, such a fall prevention bar interferes with the work when the stored items are taken in and out. Therefore, it is possible to manually move the fall prevention bar between the fall prevention position where the stored items can be prevented from colliding with the inner surface of the door and the retreat position where the stored items are not disturbed. Is preferable. However, if the fall prevention bar is manually operated between the fall prevention position and the retracted position, not only is the operation complicated, but the fall prevention bar is set at the fall prevention position. There is a problem that it is not an effective fall prevention measure.

JP 2007-182721 A

  An object of the present invention is to provide a fall prevention device and a storage that can reduce the complexity of operation and can reliably prevent the fall of stored items in a storage space.

  The present invention employs the following configuration in order to solve the above-described problems. That is, the fall prevention device according to the present invention includes a storage body that stores storage items in a storage space so that the stored items can be taken in and out, a door that can be opened and closed at the opening of the storage body, and the door in the closed position. A fall prevention member that is applied to a storage provided with a latch mechanism for holding, and that is disposed between a storage space of the storage main body and the closed door, and the fall prevention member A fall prevention member that operably holds a storage position between a retraction position that allows the storage of the storage goods in and out of the storage body and a fall prevention position that prevents the storage goods stored in the storage body from moving in the falling direction. A holding mechanism and a fall prevention member drive mechanism that moves the fall prevention member from the retracted position to the fall prevention position by using at least an operation of closing the door.

  In such a case, the fall prevention member can be moved from the retracted position to the fall prevention position by using the operation of closing the door, so that the fall prevention member can be securely placed in the state where the door is closed. Can be set. Therefore, compared with the conventional case where the fall prevention member must be manually operated and set at the fall prevention position, it is possible to reduce the complexity of the operation and to reliably fall when the door is closed. Since the prevention member is set at the fall prevention position, it is possible to reliably prevent the fall of the stored items in the storage space.

  The storage main body is provided with a shelf plate on which stored items can be placed, and the fall prevention member is preferably a bar-like member arranged in parallel with the shelf plate. It is mentioned as an aspect.

  It is preferable that the fall prevention member holding mechanism includes a pair of rotating arms whose base ends are pivotally supported by the storage body and which support the fall prevention member at the distal end.

  As one aspect of the fall prevention member driving mechanism, there is one that automatically moves the fall prevention member from the retracted position to the fall prevention position only when the door is closed.

  More specifically, the fall prevention member drive mechanism uses an spring force or gravity to move the fall prevention member from the retracted position to the fall prevention position, and resists the restoring force of the automatic return mechanism. When the fall prevention member is moved to the retracted position by an operating force, a lock mechanism that holds the fall prevention member at the retracted position, and a lock state by the lock mechanism is released using a door closing operation. It is preferable to include an unlocking mechanism that performs this.

  As another aspect of the fall prevention member drive mechanism, the fall prevention member is automatically moved from the retracted position to the fall prevention position when the door is closed, and automatically when the door is opened. A member that moves the fall prevention member from the fall prevention position to the retracted position is exemplified.

  More specifically, the fall prevention member drive mechanism utilizes an automatic retraction mechanism that moves the fall prevention member from a fall prevention position to a retraction position using spring force or gravity, and a force that closes the door. It is preferable to include an automatic return mechanism that moves the fall prevention member from the retracted position to the fall preventive position against the urging force of the automatic retracting mechanism.

  In addition, the storage body is provided with a door that can be opened and closed at an opening of a storage body that stores the stored items in a removable manner, and the storage body is provided with the fall prevention device according to any one of claims 1 to 7. If there is, the above-described problem can be suitably solved for the same reason.

  As described above, according to the present invention, it is possible to provide a fall prevention device and a storage that can reduce the complexity of operation and can reliably prevent the fall of stored items in the storage space.

The perspective view which shows the door closed state of the storage according to 1st Embodiment of this invention. The perspective view which shows the door opening state of the storage according to the embodiment. FIG. 2 is a plan sectional view taken along line AA in FIG. 1. The right view which shows the door closed state of the storage according to the embodiment. The right view which shows the door opening state of the store | warehouse | chamber concerning the embodiment. The front view which abbreviate | omits a door and shows the door closed state of the storage according to the embodiment. The front view which abbreviate | omits a door and shows the door open state of the storage | warehouse | chamber concerning the embodiment. The plane sectional view which followed the AA line in Drawing 1 which expands and shows the important section of the storage concerning the embodiment. The perspective view which expands and shows the principal part of the storage according to the embodiment. The side view which expands and shows the principal part of the storage according to the embodiment. The side view which expands and shows the principal part of the storage according to the embodiment. The side view which expands and shows the principal part of the storage according to 2nd Embodiment of this invention. The side view which expands and shows the principal part of the storage according to the embodiment.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 to 11, the storage S of the present embodiment can be opened and closed at a storage body 1 that stores storage items F in a storage space 17 so as to be able to put in and out, and an opening 18 of the storage body 1. In addition to the doors 2 and 3 provided on the door and the latch mechanism 4 for holding the doors 2 and 3 in the closed position, a fall prevention device 5 is provided.

  As shown in FIGS. 1 to 11, the storage body 1 includes left and right side plates 11, 12, a bottom plate 13 provided between the lower ends of these side plates 11, 12, and the upper ends of the side plates 11, 12. A steel furniture structure having a top plate 14 provided on the rear plate 15 and a back plate 15 provided between the rear ends of the side plates 11 and 12 is constructed between the left and right side plates 11 and 12. In this state, a plurality of shelf boards 16 are arranged.

  As shown in FIGS. 1 to 11, the side plates 11, 12 include sheet metal side plate bodies 111, 121 having front edge bent portions 114, 124 and rear edge bent portions 115, 125, and the side plate bodies 111, 121. The front reinforcing frame members 112 and 122 are rigidly connected in a state along the front edge bent portions 114 and 124, that is, are firmly connected with rigidity, and the rear edge bent portions 115 are formed on the inner surfaces of the side plate main bodies 111 and 121. , 125, and rear reinforcing frame members 113 and 123 which are rigidly connected in the state of being close to each other in parallel. A plurality of hook holes 119, 127, and 129 (left front reinforcing frame for attaching the shelf plates) are provided on the rear facing surfaces 116 and 126 of the front reinforcing frame members 112 and 122 and the inner surfaces 118 and 128 of the rear reinforcing frame members 113 and 123, respectively. A hook hole of the material 112 (not shown) is provided at a predetermined interval in the vertical direction. In FIGS. 4 and 5, a part of the side plate 12 is cut away.

  As shown in FIGS. 1 to 11, the shelf plate 16 is attached to the side plates 11 and 12 via a front bracket 161 having left and right front end portions engaged with either of the hook holes 127 of the front reinforcing frame members 112 and 122. The left and right rear ends are engaged with either one of the hook holes 119 and 129 of the rear reinforcing frame members 113 and 123 and supported by the side plates 11 and 12 via the rear bracket 162. The storage space 17 is formed on each of the shelf boards 16 so that the stored items F can be placed and stored on the shelf boards 16. The first door 2 and the second door 3 are provided in a double-spreading manner in the opening 18 of the storage body 1. The storage S of this embodiment is of a type in which the doors 2 and 3 do not enter the opening 18 of the storage body 1, that is, the opening end surface 181 of the storage body 1 is also covered with the doors 2 and 3. This is the format.

  As shown in FIGS. 1 to 3, for example, the first door 2 is attached to the left side plate 11 of the storage body 1 through a hinge 21 so as to be openable and closable. Is provided with a protruding piece 22. 6 and 7, the first door is omitted.

  As shown in FIGS. 1 to 5 and FIGS. 8 to 10, the second door 3 is attached to the right side plate 12 of the storage body 1 through a hinge 31 so as to be openable and closable. A latch window 32 is provided on the inner surface side of the upper end portion and the lower end portion of the moving end portion, and an operation window portion 33 is provided on the outer surface side of the central portion of the rotating end portion. The latch pawls 44 and 45 of the latch mechanism 4 are disposed on the latch window portion 32, and the operation lever 49 of the latch mechanism 4 is disposed on the operation window portion 33. In addition, the 2nd door is abbreviate | omitted in FIG.6, FIG7 and FIG.11.

  As shown in FIGS. 1, 2, 4, and 5, the latch mechanism 4 includes an engagement window 41 provided on the front surface of the top plate 14 and the bottom plate 13 of the storage body 1, and these engagement windows. 41, latch pawl holders 42, 43 provided at the upper end and lower end of the second door 3, respectively, and latch pawls 44 held by the latch pawl holders 42, 43 so as to be horizontally pivotable. 45, a spring (not shown) for elastically urging the latch claws 44, 45 in the closing direction, and an operation unit 47 for operating the latch claws 44, 45 in the opening direction against the urging force of these springs It comprises. The operation unit 47 includes a housing 48 mounted on the inner surface side corresponding to the operation window 33 of the second door 3, and is rotatably supported by the housing 48 via the operation window 33. When the operation lever 49 is operated, the control lever 49 has an operation lever 49 facing the outside and a transmission rod 40 that transmits an operation force applied to the operation lever 49 to the latch claws 44 and 45. The latch claws 44 and 45 are rotated in a direction to be disengaged from the engagement window 41 against the biasing force of the spring.

  As shown in FIGS. 1 to 11, the fall prevention device 5 is configured to be retrofitted to an existing storage body 1, and the storage space 17 of the storage body 1 and the closed doors 2, 3 are closed. The fall prevention member 6 arranged between the storage body F, the retraction position (A) that allows the fall prevention member 6 to be taken in and out of the storage body 1 and the storage object F stored in the storage body 1. Using a fall prevention member holding mechanism 7 that operably holds the fall prevention position (B) that prevents the movement of the fall direction, and an operation of closing the fall prevention member 6 at least the doors 2 and 3. And a fall prevention member drive mechanism 8 for moving the fall position (A) to the fall prevention position (B).

  As shown in FIGS. 1 to 11, the fall prevention member 6 has a bar shape arranged in parallel with the shelf board 16. Specifically, the fall prevention member 6 has a length dimension substantially corresponding to the internal dimension of the storage body 1 and is made of, for example, a metal pipe material.

  As shown in FIGS. 1 to 11, the fall prevention member holding mechanism 7 forms a pair in which the base end portions 731 and 741 are pivotally supported by the storage body 1 and the tip end portions 732 and 742 support the fall prevention member 6. Rotating arms 73 and 74 are provided. Specifically, the fall prevention member holding mechanism 7 includes, for example, a main housing 71 attached inside the right side plate 12 of the storage body 1, a sub housing 72 attached inside the left side plate 11, The pivot arms 73 and 74 are pivotally attached to the main housing 71 and the sub-housing 72 and pivotable in the vertical direction. 4, 5, 10 and 11, a part of the main housing is omitted.

  As shown in FIGS. 1 to 11, the fall prevention member drive mechanism 8 automatically moves the fall prevention member 6 from the retracted position (A) to the fall prevention position (B) only when the doors 2 and 3 are closed. ). More specifically, the fall prevention member driving mechanism 8 uses the spring force to move the fall prevention member 6 from the retracted position (A) to the fall prevention position (B), and the automatic return mechanism. A lock mechanism 82 that holds the fall prevention member 6 in the retracted position (A) when the fall prevention member 6 is moved to the retracted position (A) by an operating force that resists the restoring force of 81; A lock release mechanism 83 is provided for releasing the locked state of the lock mechanism 82 using the closing operation of the doors 2 and 3.

  Specifically, as shown in FIGS. 3 to 8, 10, and 11, the automatic return mechanism 81 is provided between the main housing 71 and a rotating arm 73 pivotally supported by the main housing 71. Provided between a main spring 84 that urges the turning arm 73 to turn upward, a sub-housing 72 and a turning arm 74 pivotally supported by the sub-housing 72, and turning the turning arm 74 upward. A secondary spring 85 that is urged to move is provided.

  As shown in FIGS. 3 to 8, 10, and 11, the lock mechanism 82 includes an engaging portion 86 provided on the rotating arm 73 and an engaging position (C) that engages with the engaging portion 86. A lock claw 87 that is rotatable between the disengagement position (D) where the engagement is released, and a spring 88 that elastically biases the lock claw 87 in the direction of the engagement position (C). It becomes. The lock claw 87 is pressed by the engaging portion 86 of the rotating arm 73 when the fall preventing member 6 moves from the fall preventing position (B) to the retracted position (A). Is temporarily retracted to the disengaged position (D) from the first position, and the locking claw 87 is engaged by the biasing force of the spring 88 when the fall prevention member 6 reaches the retracted position (A). It returns to the position (C). More specifically, the lock claw 87 is pivotally attached to the main housing 71 via a support shaft 871 at its intermediate portion and rotated in the front-rear direction. One end side of the lock claw 87 is pressed by the lock portion 872 with which the engagement portion 86 of the rotation arm 73 is engaged and the engagement portion 86 of the rotation arm 73 to temporarily hold the lock claw 87. And a cam surface 873 for retracting to the non-engagement position (D). The other end side of the lock claw 87 is provided with a contact surface 874 related to a lock release mechanism 83 described later.

  As shown in FIGS. 3 to 11, the lock release mechanism 83 is supported by the main housing 71, and an open / close detection member 89 capable of moving back and forth between the lock position (E) and the lock release position (F). A guide member 80 for guiding the open / close detection member 89 in a fixed posture is provided, and the guide member 80 is attached to the inner surface of the side plate 12 using a fastener such as a double-sided tape. Specifically, the open / close detection member 89 is a rod-shaped member penetrating the front wall 75 of the main housing 71 and can be moved forward and backward. The inner end 891 of the opening / closing detection member 89 is in contact with the contact surface 874 of the lock claw 87, and when the doors 2 and 3 are open, the engagement position (C) is applied by the biasing force of the spring 88. It is pressed by the contact surface 874 of the lock claw 87 that has returned to the position and protrudes to the lock position (E). That is, at the lock position (E), the inner end 891 of the open / close detection member 89 is pushed by the contact surface 874 of the lock claw 87 returned to the engagement position (C) by the biasing force of the spring 88 and pushed forward. The outer end 892 of the open / close detection member 89 is set so as to be pressed by the inner surfaces of the doors 2 and 3 while the doors 2 and 3 are closed. On the other hand, in the unlocking position (F), the outer end 892 of the opening / closing detection member 89 is in contact with the inner surface of the door 3 and the inner end 891 is in the non-engaging position (D). It is set so as to be in contact with the contact surface 874.

  In addition, the fall prevention apparatus 5 demonstrated above is when the stored thing F accommodated in the storage space 17 moves to the door 2, 3 direction, and collides with the fall prevention member 6 hold | maintained at the fall prevention position (B). In addition, the fall prevention member 6 is designed not to be applied with a force in the direction of the retracted position (A). Specifically, as in this embodiment, the fall prevention member 6 is supported by the tips of the pivot arms 73 and 74 extending forward from the pivot point, and the pivot arms 73 and 74 are pivoted downward. Thus, in the structure in which the fall prevention member 6 can be retracted from the fall prevention position (B) to the withdrawal position (A), the fall prevention position (B) is pivotally attached to the rotating arms 73 and 74. It is only necessary to set the position higher than the point.

  In attaching the fall prevention device 5 to the existing storage body 1, the main housing 71 is attached to the inner surface of the right side plate 12 and the sub housing 72 is attached to the inner surface of the left side plate 11. At that time, the outer surface of the main housing 71 was brought into contact with the inner surface of the side plate main body 121, and the front surface of the main housing 71 was brought into contact with the rearward face 126 of the front reinforcing frame member 122 and engaged with the hook hole 127. The main housing 71 is fixed to the right side plate 12 by fixing the bracket 51 to the upper surface of the main housing 71 using screws. Similarly, the outer surface of the sub-housing 72 is brought into contact with the inner surface of the side plate main body 111, and the front surface of the sub-housing 72 is brought into contact with the rearward surface 116 of the front reinforcing frame member 112 to engage with a hook hole (not shown). The sub-housing 72 is fixed to the left side plate 11 by fixing the bracket 52 to the upper surface of the sub-housing 72 using screws. Thus, by attaching the fall prevention device 5, the main housing 71 and the sub-housing 72 are arranged on the upper surfaces of the left and right ends of the shelf plate 16, and the fall prevention member 6 is the front end surface of the shelf plate 16. It can operate between a nearby retracted position (A) and a fall prevention position (B) that blocks the front of the storage space 17.

  Next, the operation of the storage S in this embodiment will be described.

  First, when the doors 2 and 3 are opened, the fall prevention member 6 of the fall prevention device 5 prevents the fall as shown in the fall prevention device 5 corresponding to the middle and lower shelf 16 in the storage S in FIG. It is in position (B). In the case where the stored items F on and from the desired shelf board 16 are taken in and out from this state, the fall prevention device 5 corresponding to the upper shelf board 16 of the storage S in FIG. 2, and FIGS. As shown in FIG. 4, the fall prevention member 6 is manually pushed downward. As a result, the fall prevention member 6 is locked at the retracted position (A), and the storage space 17 is kept open even when the hand is released. That is, when a downward operating force is applied to the fall prevention member 6 to rotate the rotation arm 73 downward, the engaging portion 86 of the rotation arm 73 presses the cam surface 873 of the lock claw 87 to lock it. The claw 87 is temporarily retracted to the engagement position (C). Then, when the engaging portion 86 of the rotating arm 73 passes the cam surface 873 of the lock claw 87, the lock claw 87 returns to the engagement position (C) by the biasing force of the spring 88. As a result, the engaging portion 86 of the rotating arm 73 engages with the locking portion 872 of the lock claw 87, and the returning of the rotating arm 73 to the upper side is prevented. Therefore, the fall prevention member 6 supported by the rotating arm 73 is locked at the retracted position (A).

  When the doors 2 and 3 are closed from such a state, the locked state is released and the fall prevention member 6 automatically returns from the retracted position (A) to the fall prevention position (B). That is, when the doors 2 and 3 are closed, the inner surfaces of the doors 2 and 3 come into contact with the outer ends 892 of the open / close detection member 89 at the lock position (E) in the middle of the doors. When the doors 2 and 3 are further closed from that position, the open / close detection member 89 is pressed against the doors 2 and 3 and slides backward, and the inner end 891 presses the contact surface 874 of the lock claw 87 rearward. Will do. As a result, the lock claw 87 is forcibly rotated from the lock position (E) to the lock release position (F), and the engagement state between the lock claw 87 and the rotation arm 73 is released. When the engaged state is released, the rotating arm 73 is rotated upward by the urging force of the main spring 84, and the fall prevention member 6 supported by the rotating arm 73 is shown in FIGS. As shown in FIG. 10, the retraction position (A) returns to the fall prevention position (B).

  The left pivot arm 74 is coupled to the right pivot arm 73 by a bar-shaped drop prevention member 6 and is urged upward by a secondary spring 85. The arms 73 and 74 move in the vertical direction substantially synchronously, and the fall prevention member 6 moves along the shelf plate 16 substantially in parallel.

  As described above, the fall prevention device 5 according to the present embodiment can be opened and closed at the storage body 1 that stores the stored items F in the storage space 17 in a removable manner and the opening 18 of the storage body 1. The present invention is applied to a storage S provided with doors 2 and 3 provided and a latch mechanism 4 for holding the door 3 in the closed position, and is closed with a storage space 17 of the storage body 1. The fall prevention member 6 disposed between the doors 2 and 3, the retraction position (A) that allows the fall prevention member 6 to be taken in and out of the storage body 1, and the storage body 1. A fall prevention member holding mechanism 7 that holds the fall prevention member 6 in an operable manner between the fall prevention position (B) that prevents the stored items F stored in the fall direction from moving, and at least the door 3 Using the action of closing the position from the retracted position (A) to the fall prevention position Formed by and a fall preventing member driving mechanism 8 for moving the (B). That is, with such a configuration, the fall prevention member 6 automatically returns to the fall prevention position (B) simply by closing the door 3. For this reason, not only is the operation easier than the conventional one in which the fall prevention member 6 is manually moved to the fall prevention position (B), but the fall prevention member 6 is returned from the retracted position (A) to the fall prevention position (B). There is no worry of forgetting. In addition, when the fall prevention member 6 exists in the fall prevention position (B), even if an earthquake occurs and the stored item F moves forward, the force of the forced opening direction is not applied to the doors 2 and 3. FIG. Therefore, it is possible to appropriately prevent the stored items F from falling due to the doors 2 and 3 being opened in the event of an earthquake.

  Moreover, the said storage main body 1 is provided with the shelf board 16 on which the stored item F can be mounted, and the said fall prevention member 6 is a bar-shaped thing distribute | arranged in parallel with the said shelf board 16 Therefore, the stored items F placed on the shelf board 16 can be prevented from moving in the direction of the inner surfaces of the doors 2 and 3. In particular, in the present embodiment, since the fall prevention devices 5 are respectively attached to the plurality of shelf boards 16, when the doors 2 and 3 are opened, the fall attached to the shelves necessary for putting in and out the stored items F. Only the prevention member 6 can be moved to the retracted position (A). Even when the plurality of fall prevention members 6 are moved to the retreat position (A), all the fall prevention members 6 are moved to the fall prevention position (B) by one operation of closing the doors 2 and 3. And can be restored automatically.

  Further, the fall prevention member holding mechanism 7 includes pivot arms 73 and 74 that form a pair in which the base end portions 731 and 741 are pivotally supported by the storage body 1 and the tip end portions 732 and 742 support the fall prevention member 6. Since it is provided, the fall prevention member 6 can be moved between the retracted position (A) and the fall prevention position (B) in accordance with the turning operation of the turning arms 73 and 74.

  Since the fall prevention member drive mechanism 8 automatically moves the fall prevention member 6 from the retracted position (A) to the fall prevention position (B) only when the doors 2 and 3 are closed, At least when the doors 2 and 3 are closed, the fall prevention member 6 returns to the fall prevention position (B), and even if an earthquake or the like occurs, the stored items F in the storage space 17 are appropriately transferred to the doors 2 and 3. It is possible to prevent the occurrence of conflicting problems.

  The fall prevention member drive mechanism 8 uses the spring force to move the fall prevention member 6 from the retracted position (A) to the fall prevention position (B), and the restoring force by the automatic restoration mechanism 81. A locking mechanism 82 that holds the fall prevention member 6 in the retracted position (A) when the fall prevention member 6 is moved to the retracted position (A) by an operating force that resists the operation. Since the lock release mechanism 83 that releases the locked state using the closing operation of the door 3 is provided, the fall prevention member 6 that has been once moved to the retracted position (A) by applying an operating force is used as an external force. Therefore, it is possible to prevent the return to the fall prevention position (B). Therefore, the storage items F in the storage space 17 can be suitably put in and out. That is, at the normal time, since the fall prevention member 6 is provided on the front surface of the shelf board 16, there is no problem in taking in and out the stored items F.

  As described above, the doors 2 and 3 can be opened and closed at the opening 18 of the storage body 1 for storing the stored items F in the storage space 17 so that the fall prevention device 5 can be opened and closed. With the storage S provided, it is possible to reduce the complexity of the operation and to reliably prevent the stored items F from falling.

  Next, a second embodiment of the present invention will be described with reference to FIGS. The storage S of the present embodiment is similar to the storage S according to the first embodiment described above, and the same components are denoted by the same reference numerals and detailed description thereof is omitted.

  The fall prevention device 5 applied to the storage S of the present embodiment automatically drops the fall prevention member 6 from the retracted position (A) when the fall prevention member driving mechanism 8 closes the doors 2 and 3. While moving to the fall prevention position (B), the fall prevention member 6 is automatically moved from the fall prevention position (B) to the retracted position (A) when the doors 2 and 3 are opened. This is different from the above.

  As shown in FIGS. 12 and 13, the fall prevention member drive mechanism 8 of the present embodiment uses automatic gravity to move the fall prevention member 6 from the fall prevention position (B) to the withdrawal position (A). The mechanism 91 and the force for closing the doors 2 and 3 are used to automatically move the fall prevention member 6 from the retracted position (A) to the fall preventive position (B) against the urging force of the automatic retracting mechanism 91. And a return mechanism 92.

  Specifically, as shown in FIGS. 12 and 13, the automatic retracting mechanism 91 mainly includes the rotation arm 73 and the gravity of the fall prevention member 6 provided at the tip of the rotation arm 73, more specifically. The rotary arm 73 and the fall prevention member 6 are provided between the gravity of the rotary arm 73 and the main housing 71 and the rotary arm 73 pivotally supported by the main housing 71. The rotary arm 73 is biased upward. And an auxiliary spring 85 provided between the sub-housing 72 and the rotating arm 74 pivotally supported by the sub-housing 72, which rotates and urges the rotating arm 74 upward. It uses the combined force with the power. The rotation arm 73 is pivotally attached to the main housing 71 via a support shaft at its intermediate portion and rotates in the front-rear direction. One end of the rotation arm 73 includes the fall prevention member 6 and the other end. The end side is provided with a contact surface 733 related to an automatic return mechanism 92 described later.

  As shown in FIGS. 12 and 13, the automatic return mechanism 92 is supported by the main housing 71 and can be moved back and forth between the protruding position (G) and the retracted position (H). The guide member 94 includes a guide member 94 that guides the detection member 93 in a fixed posture. The guide member 94 is attached to the inner surface of the side plate 11 using a fastening tool such as a double-sided tape. Specifically, the open / close detection member 93 is a rod-shaped member penetrating through the front wall 75 of the main housing 71 and can be moved forward and backward. An inner end 931 of the opening / closing detection member 93 is in contact with the contact surface 733 of the rotating arm 73, and in a state in which the doors 2 and 3 are open, the rotation is rotated downward due to gravity. The arm 73 is pressed by the contact surface 733 and protrudes to the protruding position (G). That is, at the protruding position (G), the inner end 931 of the open / close detection member 93 is pressed forward by the contact surface 733 of the rotating arm 73, and the outer end 932 of the open / close detection member 93 is pushed. Is set so that it can be pressed by the inner surface of the door 3 while the door 3 is closed. On the other hand, in the immersion position (H), the outer end 932 of the opening / closing detection member 93 is in contact with the inner surface of the door 3 and the inner end 931 rotates while lifting the fall prevention member 6 against gravity. The arm 73 is set so as to be in contact with the contact surface 733.

  Next, the operation of the storage S in this embodiment will be described.

  First, when the doors 2 and 3 are opened, the fall prevention member 6 is automatically retracted from the fall prevention position (B) to the withdrawal position (A) as shown in FIG. That is, when the doors 2 and 3 are opened, the open / close detection member 93 is removed while maintaining the state where the inner surface of the door 3 is in contact with the outer end 932 of the open / close detection member 93 at the immersion position (H). Begin to protrude toward. When the door 3 is further opened from this position, the pivot arm 73 pivots downward from the initial position (I) to the pivot position (J) due to the gravity of the pivot arm 73 and the fall prevention member 6. The inner end 931 of the open / close detection member 93 is pressed forward by the contact surface 733 of the rotating arm 73. As a result, the open / close detection member 93 is forcibly slid from the immersive position (H) to the protruding position (G). The fall prevention member 6 supported by the pivot arm 73 is held at the retracted position (A) as shown in FIG. 13 by the gravity of the pivot arm 73 and the fall prevention member 6.

  When the doors 2 and 3 are closed from such a state, the fall prevention member 6 automatically returns from the retracted position (A) to the fall prevention position (B) as shown in FIG. That is, when the doors 2 and 3 are closed, the inner surfaces of the doors 2 and 3 come into contact with the outer ends 932 of the open / close detection member 93 at the protruding position (G) in the middle of the doors. When the doors 2 and 3 are further closed from that position, the open / close detection member 93 is pressed against the doors 2 and 3 and slides backward, and the contact surface 733 of the rotating arm 73 is moved backward at the inner end 931. Will be pressed. As a result, the rotation arm 73 is forcibly rotated from the rotation position (J) to the initial position (I). Then, the fall prevention member 6 supported by the rotating arm 73 returns from the retracted position (A) to the fall prevention position (B).

  The left pivot arm 74 is coupled to the right pivot arm 73 by a bar-shaped drop prevention member 6 and is urged upward by a secondary spring 85. The arms 73 and 74 move in the vertical direction substantially synchronously, and the fall prevention member 6 moves along the shelf plate 16 substantially in parallel.

  As described above, according to the fall prevention device 5 according to this embodiment, the same effect as that of the first embodiment described above or an effect equivalent thereto can be obtained.

  Furthermore, if it is like this embodiment, the fall prevention member 6 can be automatically moved from the fall prevention position (B) to the retracted position (A) by opening the doors 2 and 3. The complexity of the operation can be further reduced.

  Moreover, according to this embodiment, since the lock mechanism 82 and the lock release mechanism 83 of 1st Embodiment become unnecessary, the fall prevention apparatus 5 can be made into a simple structure. Furthermore, the fall prevention device 5 according to the present embodiment can share parts with the fall prevention device 5 of the first embodiment, such as the fall prevention member 6 and the housings 71 and 72.

  The present invention is not limited to the embodiment described above.

  The storage body is not limited to the one described above, and various changes can be made. For example, the shelf mounting position may be changed, or the shelf may not be provided.

  In the above-described embodiment, the door has been described as opening and closing in a double door manner, but the present invention is not limited to this, and the door is a door that opens and closes only by a rotating operation, or a sliding door that slides left and right. Also good. In addition, it is not limited to the type that closes the opening end surface of the storage body, but the door is mounted in the storage body, that is, the opening end surface of the storage body and the outer surface of the door are substantially flush. It may be set. However, in particular, when the door is provided on the outer surface side of the storage body as described above, when the door shakes due to an earthquake or the like, a force in the direction of twisting is easily applied to the storage body. The effect of the present invention can be exhibited more.

  The fall prevention device is not limited to a device that is retrofitted to an existing storage body, and may be one that has been incorporated from the beginning. Moreover, even if it is a case where it attaches to the existing storage main body, the attachment method and attachment location are not restricted to what was mentioned above.

  The fall prevention member is not limited to a bar shape, and can be variously changed. Further, the fall prevention position and the retraction position of the fall prevention member are not limited to the above-described vertical position.

  The automatic return mechanism of the fall prevention member driving mechanism may use a spring force such as a spring, or may use the gravity of the member.

  Furthermore, the locking mechanism and the unlocking mechanism are not limited to those described above.

  Further, the automatic retraction device of the fall prevention member driving mechanism may be one that utilizes a spring force or gravity by a spring or the like, one that utilizes an operation of opening a door, or one that retreats by a combination of these. .

  In addition, various changes may be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS S ... Storage 1 ... Storage body 16 ... Shelf board 17 ... Storage space 18 ... Opening 2, 3, ... Door 4 ... Latch mechanism 5 ... Fall prevention device 6 ... Fall prevention member (A) ... Retraction position (B) ... Fall prevention position 7 ... Fall prevention member holding mechanism 8 ... Fall prevention member drive mechanism 73, 74 ... Rotating arm 731, 741 ... Base end portion 732, 742 ... Tip end portion 81 ... Automatic return mechanism 82 ... Lock mechanism 83 ... Unlock Mechanism 91 ... Automatic retraction mechanism 92 ... Automatic return mechanism F ... Storage

Claims (8)

A storage provided with a storage body that can store and remove stored items in a storage space, a door that can be opened and closed at the opening of the storage body, and a latch mechanism for holding the door in a closed position. A fall prevention device applied to the storage,
A fall prevention member disposed between the storage space of the storage body and the closed door, and the fall prevention member is stored in the storage body and a retreat position that allows the storage of the storage items to and from the storage body. A fall prevention member holding mechanism that operably holds between the fallen stored position that prevents the stored item from moving in the drop direction, and the retraction using at least the operation of closing the door. A fall prevention device comprising: a fall prevention member drive mechanism for moving from a position to the fall prevention position. The said storage main body is provided with the shelf which can mount a storage thing, The said fall prevention member is a bar-shaped thing distribute | arranged in parallel with the said shelf. Fall prevention device. The fall prevention according to claim 1 or 2, wherein the fall prevention member holding mechanism includes a pair of pivot arms having a base end portion pivotally supported by the storage body and supporting the fall prevention member at a distal end portion. apparatus. 4. The fall prevention device according to claim 1, wherein the fall prevention member driving mechanism automatically moves the fall prevention member from the retracted position to the fall prevention position only when the door is closed. The fall prevention member drive mechanism uses an spring force or gravity to move the fall prevention member from a retracted position to a fall prevention position, and an operation force that resists the return force of the automatic return mechanism. A locking mechanism that holds the fall prevention member at the retracted position when the prevention member is moved to the retracted position, and an unlocking mechanism that releases the locked state by the lock mechanism using a door closing operation. The fall prevention device according to claim 4, which is provided. The fall prevention member drive mechanism automatically moves the fall prevention member from the retracted position to the fall prevention position when the door is closed, and automatically moves the fall prevention member when the door is opened. The fall prevention device according to claim 1, 2 or 3, wherein the fall prevention device is moved from the fall prevention position to the retracted position. The fall prevention member driving mechanism uses a spring force or gravity to move the fall prevention member from a fall prevention position to a withdrawal position, and uses a force to close the door to move the fall prevention member to the The fall prevention device according to claim 6, further comprising an automatic return mechanism that moves from a withdrawal position to a fall prevention position against an urging force of the automatic withdrawal mechanism. The storage which provided the door so that opening and closing was possible in the opening part of the storage main body which stores a storage thing in the storage space so that insertion / extraction is possible, and provided the fall prevention apparatus in any one of the said storage main body.

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