JP2014181467A - Drawer lock mechanism of storage cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drawer lock mechanism of a storage cabinet capable of locking not only a plurality of drawers simultaneously with one locking, but also the top cover of a top board side storage part simultaneously.SOLUTION: A drawer lock mechanism is constituted by: a cabinet housing 1 in which a top cover 13 provided with a hook piece on the lower surface of a front edge thereof is pivotally supported so as to be freely opened/closed in the vertical direction; a plurality of drawer trays 2 mounted to the cabinet housing 1; a stopper member 3 which is hinge-connected to the side frames or upper and lower frames on the front side of the cabinet housing 1 so as to be freely opened/closed in the front-back direction, and provided with a hook piece on the upper rear side thereof; a locking device 4 attached to the front upper frame of the cabinet housing 1; and a bar member supported slidably in the right and left direction on the inner side of the front upper frame of the cabinet housing 1. The bar member includes locking pieces to be inserted to each hook piece of the top cover 13 and the stopper member 3.

Description

  The present invention is an improvement of the drawer lock mechanism of the storage cabinet, and more specifically, not only can a plurality of drawers be locked at the same time by one lock, but also the top lid of the top side storage section can be locked at the same time. The present invention relates to a drawer lock mechanism for a storage cabinet that can be released quickly, has a simple structure, and is advantageous in terms of manufacturing cost.

  In general, in large hospitals, etc., a drawer-type transport cart is often used as a means of efficiently carrying medical instruments and medicines in the facility. However, if the transport cart drawer is moved without being locked, In some cases, the drawer may pop out due to an impact caused by the inertia of the movement when the cart is stopped or a sudden centrifugal force when the cart is turned.

  In addition, medical equipment and medicines stored in transport carts include expensive items, and medicines handled by medical institutions include drugs and psychotropic drugs that are regulated in the market. When not in use, it is necessary to lock the drawer of the transport cart tightly by locking to enhance security so that stored articles are not stolen.

  For these reasons, transport carts used in hospitals, etc. require a mechanism that locks and locks the drawers. However, since a general transport cart has a plurality of drawers, the drawers are locked one by one. In the mechanism, work efficiency is poor. In addition, if the drawers must be unlocked one by one, it is impossible to respond quickly when medical equipment or medicine is urgently needed in a hospital room or the like.

  On the other hand, in the field of office desks, etc., there is a mechanism that allows multiple drawers arranged vertically to be locked (unlocked) with one lock (unlock) so that drawers can be locked and released quickly. Although widely known (see, for example, Patent Documents 1 and 2), these lock mechanisms have a complicated internal structure, and thus tend to be disadvantageous in terms of cost.

  Therefore, the inventor of the present invention has previously developed a lock mechanism having a simpler structure (see Patent Documents 3 and 4), and these lock mechanisms have approximately the same length as the vertical width of the cart casing. The bending bar is rotatably attached to the front side of the cart, and the bending bar arranged as a stopper on the front side of the drawer can be fixed by locking.

  However, in the carry-in cart provided with the drawer lock mechanism, when a storage unit that can take out medical instruments or the like is provided on the upper surface side, a lock mechanism different from the drawer lock mechanism is provided on the upper cover of the storage unit. This required not only the cart structure to be complicated, but also the locking / unlocking operations were likely to be inefficient.

JP 2007-303260 A JP 2008-150908 A Japanese Utility Model Publication No. 62-32168 JP 2009-161990 A

  The present invention has been made in view of the above-described problems, and the object of the present invention is not only to lock a plurality of drawers at the same time with a single lock, but also to lock the top lid of the top plate-side storage unit at the same time. It is another object of the present invention to provide a drawer lock mechanism for a storage cabinet that can be quickly unlocked, has a simple structure, and is advantageous in terms of manufacturing cost.

  Means employed by the present inventor to solve the above problems are as follows.

That is, the present invention is a housing having an opening on the front side, and includes a plurality of upper and lower pairs of left and right guide rails 11, 11 on both side surfaces inside the housing. A cabinet 12 having an upper opening 12 is provided, and an upper lid 13 having a hook piece 13a on the lower surface of the front edge is pivotally supported on the lower side of the front edge so as to be opened and closed. A plurality of drawer trays 2, 2... Slidably mounted on the guide rails 11, 11... Of the cabinet case 1; It is hinged so as to be openable and closable, and has a plate-like or bent rod-like shape arranged in front of the drawer trays 2, 2... With the main body closed on the opening side, and a hook piece 31 on the upper back side. A stopper member 3 provided on the front upper frame of the cabinet housing 1; A locking device 4 having a rotating body 41 with a key hole 41a attached; and supported inside the front upper frame of the cabinet housing 1 so as to be slidable to the left and right, and the rotating body 41 of the locking device 4 And a bar member 5 that is slidably linked in conjunction with the rotational motion to constitute a drawer lock mechanism,
Furthermore, when the bar member 5 is slid outwardly with the upper lid 13 and the stopper member 3 closed, the bar piece 5 is inserted into the hook pieces 13a and 31 of the upper lid 13 and the stopper member 3. By comprising 52 and 52,
The upper lid 13 of the cabinet housing 1 and the plurality of drawer trays 2, 2... Can be simultaneously locked by locking.

  The upper lid 13 of the cabinet housing 1 is a transparent plastic that allows the user to see at a glance what medical devices are in the storage section 12 on the top plate side and that is not easily damaged by impact. It is desirable to use a plate (eg, a polycarbonate plate).

  In addition, the upper lid 13 of the cabinet housing 1 is preferably provided with hook pieces 13a and 13a on the left and right sides of the upper lid 13 so that the upper lid 13 can be locked more stably. In this case, the bar member 5 is attached to the hook piece. It is necessary to provide locking pieces 52 each having a rearward protruding portion 52b at a corresponding portion of the bar member 5 formed with a length equal to or longer than the distance between 13a and 13a.

  Further, as a simple structure for sliding the bar member 4 in conjunction with the rotational movement of the rotating body 41 of the locking device 4, a pinion portion 41 b is provided on the rotating body 41 of the locking device 4 and a predetermined position of the bar member 5 is set. It is possible to employ a configuration in which the rack portion 51 is provided in the state where these are engaged with each other.

  Further, the bar member 5 can be formed by using the plastic part P in the part where the sliding part or the rack part 51 is formed and using the metal part M in the part where the locking piece 52 is formed. A slide function and a lock function can be realized.

  Further, at the end of the bar member 5, a lateral convex portion 52a inserted into the concave portion 31a of the hook piece 31 of the stopper member 3 and a rearward convex portion 52b inserted into the concave portion of the hook piece 13a of the upper lid 13 are integrally formed. The structure can also be simplified by providing the locking piece 52 which has become.

  If the handle 13b of the top lid 13 of the cabinet housing 1 and the upper part of the stopper member 3 are provided with insertion holes 13c and 33, the sealing tool S can be attached to the insertion holes 13c and 33 through string portions. Can also be performed.

  In the present invention, in a cabinet including a stopper member attached to the front frame so as to be freely opened and closed, and a storage portion with an upper lid provided on the top plate side, hook pieces are respectively provided on the upper lid and the stopper member of the storage portion. At the same time, a stopper member that can be inserted into these hook pieces is provided on a bar member that is interlocked with the locking device, thereby simultaneously locking the stopper member and the upper lid for stopping a plurality of drawers by one lock. Is possible.

  Therefore, when used for a transport cart in a medical facility, the locking operation before movement or when not in use can be performed efficiently. In addition, in the present invention, the stopper member and the upper lid can be unlocked by one unlocking operation, so that the drawer and the upper lid can be unlocked all at once even when medical equipment or medicine is urgently needed. The stored items can be taken out quickly.

  Furthermore, in the present invention, since the stopper member and the upper lid can be locked at the same time using a single bar member as described above, the lock mechanism attached to the transport cart can be combined into one easier. Therefore, the manufacturing cost of the transport cart can be reduced.

  Therefore, according to the present invention, the plurality of drawers mounted on the front side of the cabinet and the locking / unlocking operation of the upper cover of the storage section provided on the top plate side are remarkably efficient and can be suitably used for a medical transport cart. Since the drawer lock mechanism of the storage cabinet made possible can be provided, the practical utility value of the present invention is very high.

It is a whole perspective view of a conveyance cart provided with a drawer lock mechanism in Example 1 of the present invention. It is a whole front view showing the conveyance cart of the state which removed all the drawer trays in Example 1 of this invention. It is an expansion perspective view showing the storage part by the side of the top board of the conveyance cart in Example 1 of the present invention. It is a whole perspective view showing the attachment structure of the stopper member in Example 1 of this invention. It is an expansion perspective view showing the drawer lock mechanism in Example 1 of this invention. It is a see-through | perspective perspective view showing the internal structure of the drawer lock mechanism in Example 1 of this invention. It is a state explanatory drawing showing the state where the locking mechanism of the stopper member in Example 1 of the present invention operates. It is the state explanatory view seen from the upper surface side showing the state where the locking mechanism of the upper lid in Example 1 of the present invention operates. It is an expansion perspective view showing the attachment structure of the sealing tool in Example 1 of this invention.

“Example 1”
A first embodiment of the present invention will be described with reference to FIGS. In the figure, what is indicated by reference numeral 1 is a cabinet housing, and what is indicated by reference numeral 2 is a drawer tray. What is indicated by reference numeral 3 is a stopper member, and what is indicated by reference numeral 4 is a locking device. What is indicated by reference numeral 5 is a bar member.

  First, in this embodiment, a medical transport cart C used in a hospital or the like is configured by providing the cabinet case 1 with wheels TT, and a traveling handle H, and opening the front side of the cabinet case 1. Are provided with a plurality of upper and lower pairs of guide rails 11 on the inner side surfaces (see FIGS. 1 and 2).

  The guide rails 11, 11 of the cabinet housing 1 are slidably mounted with drawer trays 2, 2 with a handle on the front side of the box body. Thereby, by storing medical instruments and medicines in a state where they are arranged in the drawer trays 2, 2... Of the transport cart C, it becomes possible to efficiently carry them in the hospital.

  Further, as shown in FIG. 3, the upper cabinet housing 1 is provided with a storage portion 12 having an open top, and a rear portion of the storage portion 12 is hooked to the lower surface of the front edge portion. An upper lid 13 provided with a piece 13a is pivotally supported so as to be opened and closed up and down. In addition, a handle portion 13b for performing an opening / closing operation is also provided on the front edge portion of the upper lid 13.

  In this embodiment, it is possible to confirm at a glance what kind of medical instrument or the like is contained in the storage unit 12 on the top plate side by the user on the top lid 13 of the cabinet housing 1, and fallen objects etc. Therefore, it uses a transparent plastic plate made of polycarbonate resin that is not easily broken even when subjected to some impact.

  Further, as shown in FIG. 4, a plate-like stopper member 3 is hinged to one side frame on the front side of the cabinet housing 1 so as to be openable and closable forward and backward. In addition, the stopper member 3 is disposed close to the front side of the drawer trays 2 in a state where the stopper member 3 is closed on the opening side, so that the front of the drawer trays 2 2. Can stop movement.

  Furthermore, a hook piece 31 is provided on the upper back side of the stopper member 3 so that the recess 31a faces the center when the stopper member 3 is closed as shown in FIG. On the other hand, the front upper frame 14 of the cabinet housing 1 is provided with a through hole 14a for inserting the hook piece 31 when the stopper member 3 is closed.

  Further, as shown in FIG. 6, a locking device 4 having a rotating body 41 with a key hole 41 a into which the key K is inserted is attached to the front upper frame 14 of the cabinet housing 1. A bar member 5 is supported on the inner side of the front upper frame 14 of the cabinet housing 1 so as to be slidable left and right, and the bar member 5 is connected to the rotating body 41 of the locking device 4. ing.

  In this embodiment, as a simple structure for sliding the bar member 4 to the left and right in conjunction with the rotational movement of the rotating body 41 of the locking device 4, a pinion portion 41b provided on the back side of the rotating body 41 of the locking device 4 is provided. In addition, a structure is employed in which both are arranged so that the rack portion 51 provided at a predetermined position of the bar member 5 is engaged.

  Further, the bar member 5 has a locking piece 52 having a lateral projection 52a that can be inserted into the hook piece 31 of the stopper member 3, and a rearward projection that can be inserted into the hook piece 13a of the upper lid 13 of the cabinet housing 1. A locking piece 52 having 52b is provided. In the present embodiment, the end of the bar member 5 is provided with a locking piece 52 in which a lateral convex portion 52a and a rearward convex portion 52b are integrated.

  If the stopper member 3 and the upper lid 13 are locked in a closed state, the bar member 5 slides in the outer direction, and as shown in FIGS. 7 (a) and 8 (a), each hook piece 31. Since the locking pieces 52 and 52 of the bar member 5 are inserted into 13a, the stopper member 3 and the upper lid 13 for stopping the drawer trays 2 and 2 can be simultaneously locked.

  On the other hand, if the locking device 4 is unlocked, the bar member 5 slides in the direction opposite to that at the time of locking, so that it is inserted into the hook pieces 31 and 13a as shown in FIGS. 7 (b) and 8 (b). The locking pieces 52 and 52 that have been released are released, and the stopper member 3 and the upper lid 13 are simultaneously unlocked. Thus, in the drawer lock mechanism of the present embodiment, the stopper member 3 and the upper lid 13 can be locked and released easily.

  In the present embodiment, hook pieces 13a and 13a are provided on both the left and right sides of the upper lid 13 so that the lock of the upper lid 13 of the cabinet housing 1 is stabilized. In accordance with this, the bar member 5 is formed with a length longer than the distance between the left and right hook pieces 13a and 13a of the upper lid 13, and a locking piece 52 having a rearward convex portion 52b is formed at a predetermined position of the bar member 5. Each is provided.

  Furthermore, in the present embodiment, a part of the bar member 5 where the sliding part and the rack part 51 are formed uses a plastic part P made of polyacetal resin having excellent slidability and a part where the locking piece 52 is formed. By using the metal part M made of stainless steel, the slide function and the lock function of the bar member 5 are made compatible.

  Further, in this embodiment, as shown in FIG. 9 (a), through holes 13c and 33 are provided on the handle 13b of the upper lid 13 of the cabinet housing 1 and the upper portion of the stopper member 3, so that FIG. As shown in (b), the sealing tool S can be attached through these insertion holes 13c and 33 through string portions. Thereby, management of the conveyance cart C and crime prevention measures can be easily performed.

  The present invention is generally configured as described above. However, the present invention is not limited to the embodiments, and various modifications can be made within the description of “Claims”. Even if it is not used for the transport cart C, it may be used for an installation type application such as a storage shelf.

  In addition, the stopper member 3 is not only hingedly connected to one side frame of the cabinet housing 1, but can also be attached to the left and right side frames when two drawer trays 2 are mounted side by side. it can. Further, the stopper member 3 can be hingedly attached to the upper and lower frames on the front surface of the cabinet housing 1.

  Furthermore, the shape of the stopper member 3 is not necessarily a plate shape, and may be a bent bar shape. Further, the hook piece 31 of the stopper member 3 may not have the recess 31a but may have a ring portion into which the locking piece 52 of the bar member 5 can be inserted from the side.

  Further, as a mechanism for interlocking the rotating body 41 and the bar member 5 of the locking device 4, a general-purpose machine element can be adopted, and the use of the transport cabinet C is also used for a medicine cart in a hospital, It can be used for a wide range of applications other than sterilization equipment carts and container collection carts, and any of them belongs to the technical scope of the present invention.

  In recent years, in many hospitals, the use of transport carts has been promoted so as to reduce labor for carrying medicines and medical equipment to each hospital room. Under such circumstances, the drawer lock mechanism of the storage cabinet according to the present invention is a useful technique that not only can save labor for locking and unlocking, but can also quickly take out necessary instruments and medicines even in an emergency situation. Therefore, its industrial utility value is very high.

1 cabinet housing
11 Guide rail
12 compartment
13 Upper lid
13a Hook piece
13b handle
13c insertion hole
14 Front frame
14a Through hole 2 Drawer tray 3 Stopper member
31 Hook piece
31a recess
32 Handle part
33 Insertion hole 4 Locking device
41 Rotating body
41a key hole
41b Pinion part 5 Bar member
51 Rack
52 Locking piece
52a Lateral protrusion
52b Backward convex part C Carrying cart H Travel handle K Key S Sealing tool

Claims (7)

It is a housing having an opening on the front side, and a plurality of upper and lower guide rails (11), (11) are provided on both side surfaces on the inner side of the housing. A storage part (12) is provided, and on the rear side of the storage part (12), an upper lid (13) having a hook piece (13a) on the lower surface of the front edge part is pivotally supported so that it can be opened and closed vertically A cabinet case (1); a plurality of drawer trays (2) (2) ... slidably mounted on the guide rails (11), (11), ... of the cabinet case (1); and the cabinet case It is hinged to the side frame or the upper and lower frames on the front side of (1) so as to be openable and closable in the front-rear direction and disposed in front of the drawer trays (2), (2). A stopper member (3) having a plate shape or a bent bar shape and having a hook piece (31) provided on the upper back side; and a front upper frame of the cabinet housing (1). A locking device (4) having a rotary body (41) with a key hole (41a) attached; supported inside the front upper frame of the cabinet housing (1) so as to be slidable left and right; and The rotating body (41) of the locking device (4) includes a bar member (5) that is slidably linked to the rotational motion,
Further, when the bar member (5) is slid outwardly with the upper lid (13) and the stopper member (3) closed, the bar member (5) has an upper lid (13) and a stopper member (3). By having a locking piece (52) (52) inserted into each hook piece (13a) (31) of
A drawer lock mechanism for the storage cabinet, wherein the upper lid (13) of the cabinet housing (1) and the plurality of drawer trays (2), (2), ... can be locked simultaneously by locking.   A hook member (13a) (13a) is provided on both the left and right sides of the upper lid (13) of the cabinet housing (1), and a bar member (5) formed with a length longer than the interval between the hook pieces (13a) (13a). ) Also has a locking piece (52) having a rearward convex portion (52b) at the corresponding position, respectively.   By providing a pinion part (41b) in the rotating body (41) of the locking device (4) and providing a rack part (51) at a predetermined position of the bar member (5) and arranging them in a meshed state. The drawer lock mechanism for a storage cabinet according to claim 1 or 2, wherein the bar member (4) is slidable in conjunction with the rotational movement of the rotating body (41).   In the bar member (5), the plastic part (P) is used for the part that forms the sliding part and the rack part (51), and the metal part (M) is used for the part that forms the locking piece (52). The drawer lock mechanism for a storage cabinet according to claim 3, wherein the drawer lock mechanism is configured as described above.   At the end of the bar member (5), the lateral projection (52a) to be inserted into the recess (31a) of the hook piece (31) of the stopper member (3) and the recess of the hook piece (13a) of the upper lid (13) The drawer lock mechanism for a storage cabinet according to any one of claims 1 to 4, further comprising a locking piece (52) integrated with a rearward convex portion (52b) to be inserted.   An insertion hole (13c) (33) is provided in the upper part of the handle (13b) of the upper lid (13) of the cabinet housing (1) and the stopper member (3), and these insertion holes (13c) (33) The drawer lock mechanism for a storage cabinet according to any one of claims 1 to 5, wherein the sealing member (S) can be attached through the string portion.   7. A drawer lock mechanism for a storage cabinet according to claim 1, wherein the upper lid (13) of the cabinet housing (1) is made of a transparent plastic plate.