JP4441235B2 - Locking device for upper door in article storage fixture - Google Patents

Description

  The present invention relates to a locking device for an upper door that opens and closes an article storage unit formed in an upper part of an article storage fixture such as a wagon or cabinet.

In an article storage fixture (wagon) used for storing and storing documents etc. in an office, etc., an upper door (lid or top plate) that can be opened and closed is provided at the opening on the top surface of the housing. Some have made it easy to put in and out articles in the housing (see, for example, Patent Documents 1 and 2).
Japanese Patent Laying-Open No. 2003-9966 (FIG. 2) JP 2003-102555 A

  In an article storage fixture such as a wagon having an upper door that can be opened and closed as described above, a locking device that can lock the upper door in a closed position may be provided for security measures of the stored article.

  In the wagon described in the above-mentioned Patent Document 1, since the opposing portions of the upper and lower two upper doors (top plate) are locked by one locking, when the left and right dimensions of the upper door are large, This cannot be locked firmly, and there is a risk that the upper door can be pry open.

Moreover, since the locking part is exposed to the outside in the vicinity of the upper door, it does not look good.
The wagon described in Patent Document 2 is not provided with a locking device for the upper door. However, when the upper door is locked using the locking device as described above, the same problem as described above occurs.

  The present invention has been made in view of the above problems, and it is possible to lock the upper door safely, surely and firmly from the inside of the housing, and it is necessary to provide a lock for the upper door on the upper door or in the vicinity thereof. It is an object to provide a locking device for an upper door in an article storage fixture that can improve the appearance.

According to the present invention, the above problem is solved as follows.
(1) In an article storage fixture in which an upper door is provided on an upper portion of a housing whose upper surface is opened so that the opening can be opened and closed, a latch provided on the lower surface of the upper door on the housing when the door is closed. A locking member having a locking claw and a contact piece that can be engaged with and disengaged from the portion is pivotally attached, and is moved up and down in conjunction with a locking / unlocking operation of a lock disposed on the inside of the casing. and pushes the contact piece, said locking claw of providing an actuation member which is adapted to engage the locking portion Rutotomoni, in the middle of the link mechanism between the lock and the actuating member, the locking to the actuating member when the rotation resistance is greater than the downward force of the member is applied, Ru an elastic body so as to elastically contract.

( 2 ) In the above item ( 1 ), an elevating rod that moves up and down in conjunction with the locking / unlocking operation of the lock is provided below the actuating member in the casing, and the elevating rod and the actuating member are elastically disposed between them. Link with each other across the body.

( 3 ) In the above item ( 1 ) or ( 2 ), the elastic body is made of a rubber cushion material.

According to the first aspect of the present invention, the upper door is securely locked together with other drawers from the inside of the housing by operating other locks such as drawers provided on the housing. Can increase security.
In addition, since it is not necessary to separately provide an upper door lock in the upper door or in the vicinity thereof, the cost required for the upper door can be suppressed, and it is possible to prevent the lock from being exposed and deteriorating in appearance.
Further, when the upper door is closed while the lock is operated and the operation member is raised to the lock position, the elastic body is elastically contracted and the operation member is moved downward. It is possible to prevent the claws and the locking portion from being damaged, and the upper door can be closed without hindrance.

According to the second aspect of the present invention, since the vertical load acts on the elastic body, it can be effectively elastically contracted, and the pressing load from the operating member is not directly applied to the lifting / lowering rod. It does not affect the other locking mechanism.

According to the third aspect of the present invention, the cushion material can be easily elastically deformed to effectively absorb the impact load from the operating member.

Hereinafter, the embodiments which are considered to be the best modes of the present invention will be described with reference to the drawings.
1 is a front view of an article storage fixture to which the present invention is applied, that is, a wagon, FIG. 2 is a side view showing one side plate removed, and FIG. 3 is a guide rail and a drawer similarly from FIG. It is a side view of the state removed.

  The wagon (1) has a bottom plate (3) with casters (2) attached to the four corners of the lower surface, left and right side plates (4) and (4), a rear plate (5), and a rear end that is a rear plate (5 ) On the front of both sides (4) so that the front end is located slightly ahead of the front end of the side plate (4) and the front is located at the front of the required dimension from the front side of the plate A housing (7) having a front surface and an upper surface opened, and an article storage above the article placement plate (6), which is composed of an article placement plate (6) fixed to an opposing surface spaced apart by a required dimension further downward. An upper door (8) that closes the part (S) so as to be openable and closable, and a handle (9) that is housed in the rear end of the housing (7) so as to be able to be pulled up and locked.

  The opening at the upper end formed between the side plates (4) on the rear side of the upper door (8) is blocked by the short upper surface plate (10) leaving the insertion opening (not shown) of the handle (9). Yes.

  In the housing (7) below the article placement plate (6), two upper and lower drawers (11) and (12) of different sizes are respectively attached to the opposing surfaces of the side plates (4). It is supported by the members (13) and (14) and is housed so as to be able to be pulled out forward.

  At the upper ends of the front plates (11a) and (12a) of the drawers (11) and (12), a side-view concave handle (15) is formed across the entire width in the left-right direction. An operation handle (16) linked to latch devices (95) and (111), which will be described later, is accommodated in the interior of the housing so as to be able to be pushed downward. The front upward piece (15a) of the handle portion (15) is shorter than the rear upward piece (15b).

  The upper door (8) has the same front surface as the upper closing plate (8a) which can close the opening on the upper surface of the article storage portion (S) by bending the steel plate in the downward direction (the front portion is facing backward). The front plate (8b) that can close the opening is formed in an inverted L shape in a side view, and the back plate (17) is provided on the back surface via a plurality of brackets (not shown). The upper closing plate (8a) and the front closing plate (8b) are attached so as to form a required space.

  At the lower end of the front closing plate (8b), a handle portion (18) that opens to the front side and is recessed upward is formed across the entire width in the left-right direction. The dimension of the downward piece (18a) continuous with 8b) is shorter than that of the backward downward piece (18b).

  The handle portion (18) of the upper door (8) and the handle portion (15) of the upper drawer (11) are opposed to each other, and the front downward portion (18a) and the upward portion thereof A handle space (19) into which a hand can be inserted is formed between the piece (15a).

  In the article storage section (S), the lower doors of the left and right sides of the upper door (8) are in contact with the inner surfaces of the both side plates (4), so that the upper door (8) is placed on the upper surface of the side plate (4). A pair of left and right stopper plates (20) that are stopped at a horizontal door closing position that is flush with the upper end are fixed.

  As shown in FIGS. 2 and 4, a pair of door support brackets (21) having a substantially U-shape when viewed from the side are screwed to the opposing surfaces of the rear ends of the left and right stopper plates (20). The upper end and the U-shaped brackets (22) and (22) in a plan view fixed to the inner surfaces (front surfaces) of both left and right ends of the downward bent piece (8c) at the rear end of the upper door (8) The door (8) is pivotally attached to the housing (7) about an axis line facing left and right, and a resistance is applied when the upper door (8) is closed, so that the upper door (8) is gently closed. The rotary dampers (23) and (23) are attached.

  The front and rear ends of a pair of guide plates (25) having guide grooves (24) facing in the front-rear direction are fixed to the center of the inner surface of the left and right downward bent pieces in the upper door (8).

  The guide grooves (24) of both guide plates (25) restrict the maximum amount of upward rotation of the upper door (8), and the stay (26) that stops the upper door (8) in the open position is held. A slide pin (27) protruding from the side surface of the free end is engaged so as to be slidable in the front-rear direction.

  The base end of the stay (26) is pivotally attached to the upper part of the inner surface of the stopper plate (20) with a pin (28) facing in the left-right direction.

  As a result, the upper door (8) pivots upward to a maximum position slightly exceeding 90 ° (for example, around 110 °) and stops as shown by a two-dot chain line in FIG. The upper part of can be opened greatly.

  When the upper door (8) is rotated downward to the closed position, the front opening and the upper opening in front of the article placement plate (6) in the article storage section (S) are closed.

  As shown in FIG. 3, at the front end of the inner side surface of the left side plate (4), the upper door (8) and the upper and lower drawers (11) (12) can be locked and unlocked simultaneously (29 ) Is provided.

  The locking / unlocking device (29) is linked to a lifting / lowering rod (30) facing up and down and a first locking mechanism (57) described later provided on the upper drawer (11) as shown in FIG. A second lock arm (32) linked to a first locking arm (31) and a second locking mechanism (120), which will be described later, also provided on the lifting rod (30) and the lower drawer (12), And an upper door locking and unlocking device (33) for locking and unlocking the upper door (8).

  As shown in FIG. 7, the elevating rod (30) has a U-shape in a plan view and is slidably fitted into a vertically extending long hole (34) formed in the upper and lower ends. The synthetic resin guide member (35) is fixed to the bracket (36) fixed to the inner surface of the left side plate (4) with a screw (37), and a long hole (34 ), The elevating rod (30) is attached to the inner surface of the side plate (4) so that it can move up and down by holding the eaves portion (35a) wider than the inner surface of the elevating rod (30). ing.

  At the upper end of the lifting / lowering rod (30), by attaching a downward piece of the holding piece (38) to the outer surface of the U-shaped portion, a bottomed fitting hole having a rectangular shape in plan view with the upper end opened ( 39) is formed.

  The first and second lock arms (31) and (32) have a substantially central portion facing the vertical direction fixed to the front portion of the inner surface of the side plate (4) with a pivot (40) facing in the left-right direction. The reinforcing rod (41) is pivotally attached to the inner side surface.

  At the front end of both lock arms (31) and (32), a downward hook-like locking claw (42) is formed with an inclined surface with the upper end inclined forward and downward, and the rear end is slightly upward. An arcuate actuating portion (43) is formed protruding in the direction.

  On the upper and lower portions of the inner surface of the lifting / lowering rod (30) facing the first and second lock arms (31) (32), an inverted L-shaped operating piece (44) and an inwardly U-shaped operating piece are provided. (45) is fixed with the front half projecting forward, and the lower end of the inwardly facing piece (44a) of the upper working piece (44) is actuated by the rear end of the first lock arm (31). The upper end of the part (43) is in contact.

  The operation portion (43) at the rear end of the second lock arm (32) is inserted into the U-shaped portion of the lower operation piece (45), and the upper and lower ends thereof are inwardly directed upward and downward of the operation piece (45). It is in contact with or close to the opposing surface of the piece (45a).

  In addition, without providing the operating pieces (44) and (45) as described above, the elevating rod (30) is provided with a long hole facing in the front-rear direction, and the first and second lock arms (31) ( 32) The rear end may be slidably pivoted by a pin or the like.

  When the lifting / lowering rod (30) is located at the lower limit due to its own weight, the first and second lock arms (31) and (32) have their operating parts (43) inwardly facing pieces (44) and (45). 44a) (45a) is inclined slightly forward and upward from the horizontal position (see FIGS. 3 and 5).

  As shown in FIG. 5 and FIG. 7, the upper door locking / unlocking device (33) is an operation plate (operation member) (46) facing the vertical direction with the upper half bent in an L shape toward the inside. And a locking member (47) and a locking metal fitting (54). The operating plate (46) penetrates the stopper plate (20) and has an arcuate upper end slightly in the upper door (8). It has entered (see FIG. 3).

  The actuating plate (46) is slidably fitted with a guide member (35) similar to the above in a long hole (48) formed in its upper half, and this is connected to the side plate with a screw (37). By being fixed to the bracket (49) fixed to the inner surface of (4), it is attached to the side plate (4) so as to be movable up and down.

  The lower end of the small downward projecting piece (50) connected to the lower end of the operating plate (46) is a rubber or elastomer fitted in the fitting hole (39) of the upper end of the lifting / lowering rod (30). The cushioning member (51) is made to contact the upper surface of the cushioning member (51), and when the lifting / lowering rod (30) moves up and down, the cushioning member (51) is interlocked vertically.

  Instead of the cushion material (51), an elastic body such as a compression coil spring or a leaf spring having a relatively large spring constant may be used.

  The lock member (47) has left and right sides of an inverted L-shaped contact plate (52) and a downwardly facing piece (52a) that can be accommodated in the lower part of the upper door (8). A pair of rotating plates (53) and (53) fixed to the front surface of the end and having a downward hook-like locking claw (53a) at the tip.

  The locking member (47) has its both rotating plates (53) and (53) attached to a pair of left and right inverted L-shaped brackets (55) and (55) fixed to the lower surface of the upper door (8). It is pivotally attached to the lower surface of the front portion of the upper door (8) by being pivotally supported by a pivot shaft or pin (56) that faces in the left-right direction. The weight of the locking member (47) on the rear side of the pin (56) is larger than the weight of the front side of the pin (56). That is, the locking member (47) is pivotally supported by the pin (56) at a position in front of the center of gravity so that the locking member (47) is locked to the locking bracket (54). An urging means for urging in a direction not engaging is formed.

  As the biasing means, the lock member (47) is wound around the pin (56), one end is brought into contact with the lock member (47) and the other end is brought into contact with the lower surface of the upper door (8). You may use the torsion coil spring and other springs urging in the direction.

  The left and right locking brackets (54) and (54) are L-shaped inward in a plan view, and when the upper door (8) is closed, the left and right locking claws (53a) and (53a) on the lock member (47) The left and right side plates (4) and (4) are fixed to the upper part of the inner surface so that they can be engaged with and disengaged from the inward pieces (locking portions) (54a). The locking metal fitting (54), the operation plate (46), the bracket (49), and the like are disposed in a notch (not shown) provided in the stopper plate (20).

  The locking claws (53a) of the left and right rotating plates (53) are opposed to the inward pieces (54a) of the locking metal fitting (54) when the upper door (8) is closed, and in normal times, the locking member (47) is rotated downward about the pin (56) by its own weight, so that it is spaced diagonally forward and upward of the inward piece (54a) (see FIG. 5).

  In this state, does the lower surface of the backward contact piece (52b) connected to the upper end of the downward piece (52a) of the contact plate (52) contact the upper end of the operating plate (46)? Or close. Therefore, when the operating plate (46) is raised, the upper end of the operating plate (46) comes into contact with the backward contact piece (52b), and the lock member (47) is rotated counterclockwise in FIG. 5, as shown in FIG. In addition, the locking claw (53a) engages with the inwardly facing piece (54a) of the locking fitting (54), whereby the upper door (8) is locked in the closed position.

The locking portion with which the locking claw (53a) of the rotating plate (53) engages is replaced with the upper surface of the stopper plate (20), etc., instead of the inwardly facing piece (54a) of the locking metal fitting (54). It is good also as the engagement hole etc. which were provided in.
In addition, a locking member for one side in which a short inward contact piece (52b) is connected to the upper part of one rotating plate (53) is connected to the side plate (4) on which the operating plate (46) is provided. ) May be provided only on the inner surface.

  As shown in FIGS. 8 and 9, the rear surface (the back plate is not shown) of the left side of the front plate (11a) of the upper drawer (11) is linked to the first lock arm (31). A first locking mechanism (57) is provided for operating the.

  The first locking mechanism (57) includes a guide member (60) made of synthetic resin having guide grooves (58) and (58) facing upward and downward on both left and right side surfaces of the rear portion, and a recess (59) formed on the front surface. And an elevating member (61) slidably engaged therewith.

  The elevating member (61) includes a forward U-shaped vertical substrate (63) having inward sliding pieces (62) (62) slidably fitted in the guide groove (58) up and down. A horizontal piece (64) fixed to the upper end and extending outward, and an inclined piece (65a) fixed to the lower surface of the outer side end and facing obliquely rearward and upward at the rear end. An operating piece (65), a downward piece (66) bent at the front edge of the side end of the horizontal piece (64) and having a fitting hole (67) drilled at substantially the center, It consists of a synthetic resin slider (68) that is fitted in the fitting hole (67) of the directional piece (66) and is in sliding contact with the rear surface of the front plate (11a), and is on the outer side of the horizontal piece (64). The end portion is accommodated in the space of the inwardly U-shaped bent portion formed at the side end of the front plate (11a).

  In a state where the board (63) is previously fitted to the guide member (60), the concave portion (59) of the guide member (60) is fixed to the rear surface of the front plate (11a). After fitting into the shaped part (69a), the countersunk screw (81) inserted from the through hole (70) (80) drilled in the board (63) and the guide member (60) is inserted into the bracket (69). By screwing into the screw hole (82), the guide member (60) and the elevating member (61) are attached to the rear surface of the front plate (11a).

  After mounting, the locking piece (83) formed at the upper end of the vertical piece (69b) of the bracket (69), and the locking hole (84) drilled in the middle part of the horizontal piece (64), By lifting both ends of the tension coil spring (85), the elevating member (61) is urged upward and suspended.

The elevating member (61) is positioned at the upper limit position by the side end of the horizontal piece (64) positioned in the engagement hole (87) contacting the upper end edge of the engagement hole (87). It is like that.
When the elevating member (61) is located at the upper limit, as shown in FIG. 8, the operating piece (65) is a square formed in the lower part of the inwardly facing piece (86) at the side end of the front plate (11a). Is located immediately before the upper end of the engagement hole (87).

  In the lower end portion surrounded by the inwardly facing piece (86) on the rear surface of the front plate (11a), the elastic locking is substantially U-shaped in a side view made of a spring plate or the like wider than the left and right dimensions of the engagement hole (87). The bottom plate (89a) and the front plate (89b) of the metal fitting (89) are fixedly accommodated.

  The upper plate (89c) having the downward bent piece (89d) at the rear end of the elastic locking metal fitting (89) is located slightly above the lower end of the engagement hole (87), and at the center thereof, An engagement groove (90) extending forward from the rear end is formed.

  The connecting corners of the front plate (89b) and the upper plate (89c) are curved in an arc shape so that the upper plate (89c) can be elastically deformed downward with the portion as a center.

  The engaging claw (42) at the front end of the first lock arm (31) entering from the engaging hole (87) enters the engaging groove (90) to be engaged therewith. .

  As shown in FIGS. 1, 8 and 9, the upper left part of the front plate (11a) in the upper drawer (11) is linked to the lifting member (61) in the first locking mechanism (57). A dial lock (91) is mounted with the operating part and dial protruding to the front, and the base of the locking lever (92) that rotates in conjunction with the turning operation of the operating part is the front plate (11a) The casing (93) attached to the rear surface of the casing is fixedly fitted to a rotating shaft (94) protruding from the rear surface of the side end portion.

  When the dial lock (91) is unlocked, the locking lever (92) is substantially horizontal outward just above the elevating member (61), and is rotated approximately 90 ° downward when locked. The upper surface of the horizontal piece (64) of the elevating member (61) is pushed.

  As shown in FIGS. 8, 10, and 11, the rear surface of the front plate (11a) in the upper drawer (11) and the inner surface of the housing (7) near the front portion of the right side plate (4). Is provided with a first latch device (95) for upper drawer.

  The first latch device (95) is a latch (97) pivotally attached to the inner surface of the reinforcing rod (41) facing the up-down direction of the inner surface of the side plate (4) with a pivot shaft (96) facing the left-right direction. And a latch release lever (98) provided on the rear surface of the front plate (11a).

  The front end of the latch (97) is integrally formed with a downward hook-like locking claw (99), and the lower surface of the front end has an inclined operation surface (99a) inclined obliquely rearward and downward. Is formed.

  The latch (97) has an arcuate groove (not shown) formed on the inner surface of the reinforcing rod (41) with an outward projecting end portion of the locking pin (100) facing the left and right direction penetrating forward from the pivot (96). Is slidably fitted and positioned at the lower end thereof, so that it stops substantially horizontally.

  In addition, the latch (97) is always at its front end side by a compression coil spring (102) that is compressed between the upper surface of the intermediate portion and a spring receiving piece (101) that is fixed to the reinforcing rod (41) above the intermediate portion. It is biased downward.

  An engagement hole (87) that forms a square with which the locking claw (99) enters and engages at a position facing the latch (97) in the lower part of the inwardly facing piece (86) on the right edge of the front plate (11a). Is drilled.

  The opening lower edge of the engagement hole (87) is substantially level with the middle part of the inclined operation surface (99a) of the locking claw (99), and when the drawer (11) is pushed into the housing (7) The inclined operation surface (99a) abuts the lower edge of the engagement hole (87), and the latch (97) is rotated upward against the compression coil spring (102), whereby the locking claw (99 ) Passes over the lower edge of the engagement hole (87) and enters the inside, and automatically engages with the lower part of the inner surface.

  The left and right dimensions of the latch release lever (98) are approximately half the width of the front plate (11a), the right half is a downward U-shape, and the right end is an inward piece (86 ) Is located slightly below the engagement hole (87).

  The latch release lever (98) has an intermediate portion that can be rotated around the pivot (104) facing in the front-rear direction to the bracket (103) fixed to the rear surface of the front plate (11a) and from the pivot (104). The outer side is attached so as to rotate downward by its own weight.

The left end of the latch release lever (98) is linked to the aforementioned operation handle (16) as follows.
As shown in FIGS. 8 and 10, the operation handle (16) has a central portion in the left-right direction that passes through the bottom of the concave handle (15) at the top of the front plate (11a), and passes through the front plate ( 11a) The upper end of the front and rear two-layer interlocking plate (105) extending below the rear surface is fixed, and the front and rear surfaces of the left and right sides of the upper end are fixed to the rear surface of the front plate (11a). (106) A pair of left and right guide plates (107) and (107) made of a synthetic resin screwed to the rear surface of the plastic plate are slidably held up and down.

  The left and right side edges of the lower end of the interlocking plate (105) are slidably held up and down by a pair of left and right grooved guide rollers (108) (108) pivotally supported by the bracket (103). Has been.

  The guide plate (107) and the grooved guide roller (108) prevent the operation handle (16) and the interlocking plate (105) from wobbling in the left-right direction.

  Between the locking portion (105a) formed at the lower end of the interlocking plate (105) and the locking piece (103a) formed by cutting and raising at the upper end of the bracket (103), the tension coil spring (109) As a result, the operation handle (16) and the interlocking plate (105) are always urged upward and are fixed to the rear surface of the interlocking plate (105). ) Is in contact with the lower end of the guide plate (107), and is stopped at the upper limit position.

  The upper end of the upward projecting piece (98a) formed at the left end of the latch release lever (98) has an arcuate upper end that is the lower surface of the rearward horizontal pressing piece (105b) connected to the lower rear part of the interlocking plate (105). The latch release lever (98) is substantially horizontal when the operation handle (16) is not operated.

  When the operation handle (16) is pushed downward, the latch release lever (98) is rotated clockwise in FIG. 8, and is positioned directly below the engagement hole (87) as shown in FIG. The right end of the latch pivots upward and pushes up the latching claw (99) of the latch (97) engaged with the engagement hole (87), whereby the latch (97) is engaged with the engagement hole (87). The drawer (11) can be withdrawn.

  As shown in FIGS. 3 and 12 to 15, the rear surface of the front plate (12 a) in the lower drawer (12) and the inner surface of the housing (7) near the front portion of the left and right side plates (4) A second latch device (111) for lower drawer is provided.

  The second latch device (111) has a rear end pivotally attached to the inner surface of the reinforcing rod (41) on the inner surface of the both side plates (4) with a pivot (96) facing left and right. A pair of left and right latches 97 and 97 having the same shape (not shown on the right side) and a latch release mechanism (112) provided on the rear surface of the front plate (12a), the latch (97) In the same manner as described above, it is biased downward by a compression coil spring (102) that is contracted between its upper surface and a spring receiving piece (101) attached to the reinforcing rod (41), and is reinforced with the locking pin (100). It is horizontal by the action of the arc-shaped groove formed in the ridge (41).

  The latching claw (99) of each latch (97) has a rectangular shape formed in the inwardly facing pieces (86) on both side edges of the front plate (12a) so as to face the latch (97), like the first latch device. It enters into the engaging hole (87) which forms the above, and automatically engages with the lower part of the inner surface.

  The latch release mechanism (112) includes an operating rod (113) (114) that is parallel to each other and directed to the left and right sides of the upper and lower sides and a rear surface of the bracket (115) (115) fixed to the rear surface of the front plate (12a). And a pair of left and right connecting pieces (116) (116) pivotably mounted around a pivot axis facing the direction, and the upper and lower working rods (113) (114) are slightly inclined in the same direction. A parallelogram link mechanism is formed by rotatably connecting to both ends of the left and right connecting pieces (116).

  A side end portion of the upper working rod (113) extending rightward in FIG. 12 and a side end portion of the lower working rod (114) extending leftward are folded forward at right angles. After bending, the operating pieces (113a) (114a) extending downward and upward are integrally connected so as to face the space between the inward facing piece (86) and the front plate (12a). The side end surface is a semicircular curved surface (see FIG. 14).

  On the side of the operation pieces (113a) and (114a), the base of the operation levers (117) and (117) having an inverted L shape in rear view is pivotally attached to the rear surface of the bracket (115). Has been.

  As shown in FIG. 14, the actuating lever (117) has a base portion of two long and short lever pieces (117a) and (117b) bent in an inward U-shape. (115) and one foot of a torsion spring (119) inserted through the pivot (118) on the inner surface of the long lever piece (117a) and the other foot on the bracket (115 ) Is fixed to the inner side surface of the locking projection piece (120), respectively, so that it is always urged in the direction of the operating rod (113) (114), and the outer surface of the long lever piece (117a) is The operating pieces (113a) and (114a) are in contact with the side ends.

  At the time of this contact, the short lever piece (117b) is slightly in the engagement hole (87) with which the latch (97) engages in the space between the inward piece (86) and the front plate (12a). It is located below (see FIG. 12).

  A portion of the lower operating rod (114) extending outward from the left connecting piece (116) is a second locking mechanism (121) of the second lock arm (32).

  The concave locking groove (121a) formed at the side end of the second locking mechanism (121) has an inward piece (86) in the space between the inward piece (86) and the front plate (12a). The engaging claw (42) at the front end of the second lock arm (32) that has entered the engaging hole (87) formed in the lower part of the engaging hole (87) enters the engaging groove (121a). (See FIG. 15).

  The latch release mechanism (112) is linked to the operation handle (16) of the lower drawer (12) described above as follows.

  As shown in FIGS. 12 and 13, the bottom of the handle (15) having a concave shape at the top of the front plate (12 a) is provided at the center in the left-right direction of the operation handle (16) of the lower drawer (12). The upper end of the two-layered interlocking plate (122) extending through the rear surface of the front plate (12a) is fixed, and the front and rear surfaces of the left and right sides of the upper end are the same as described above. A pair of left and right guide plates (107) and (107) made of synthetic resin, which are screwed to a support plate (106) on the rear surface of the front plate (12a), are held slidably up and down.

  The left and right side edges of the lower end of the interlocking plate (122) are slid up and down by a pair of left and right grooved guide rollers (108) and (108) that are pivotally supported by the bracket (123). It is held freely.

  Thus, the operation handle (16) and the interlocking plate (122) can move up and down stably without wobbling in the left-right direction.

  Between the locking portion (122a) formed at the lower end of the interlocking plate (122) and the locking piece (123a) formed by cutting and raising at the upper end of the bracket (123), the tension coil spring (109) As a result, the operation handle (16) and the interlocking plate (122) are constantly biased upward.

  An L-shaped stopper plate (124) is fixed to the lower end portion of the front surface of the interlocking plate (122), and its front piece (124a) abuts on the lower surface of the bracket (123), thereby operating the operation handle. (16) and the interlocking plate (122) are stopped at the upper limit position.

  Further, when stopped at this upper limit position, the lower end of the push roller (126) pivotally supported by the pivot (125) facing the front-rear direction at the center of the rear surface of the upper portion of the interlocking plate (122), It is in contact with the upper end surface of the upper working rod (113).

  Therefore, when the operating handle (16) is pushed down, the entire latch release mechanism (112) is pressed by the pressing roller (126), and the upper and lower operating rods (113) (114) are translated outward relative to each other. As a result, the left and right actuating levers (117) linked thereto are rotated in opposite directions.

  When both actuating levers (117) rotate, the short lever piece (117b) located below the engaging hole (87) rotates upward and enters the engaging hole (87). By pulling up the front end portions of the engaged left and right latches (97), the lower drawer (12) can be pulled out.

Next, a series of actions of the locking / unlocking device (29), the first and second latch devices (95) (111), etc. will be described.
When the upper and lower drawers (11) and (12) are pushed into the housing (7), the engagement holes (87) formed in the inwardly facing pieces (86) at the rear of the front plates (11a) and (12a) are inserted. ), The first lock arm (31) and the second lock arm (32) enter in the inclined state shown in FIG. 5, and one pair of latches (97) for the upper drawer and one pair of left and right for the lower drawer The latch (97) also enters the engaging hole (87) opposite to the latch (97) and automatically engages them.

  In this state, when the dial lock (91) is operated and locked, the locking lever (92) rotates downward approximately 90 °, so that the elevating member (61) of the first locking mechanism (57) becomes a tension coil spring. Depressed against (85).

  Then, the operating piece (65) fixed to the lower surface of the side end of the horizontal piece (64) moves downward, so that the front end of the first lock arm (31) is pushed down as shown in FIG. The engaging claw (42) engages with the engaging groove (90) of the elastic engaging fitting (89) provided between the inwardly facing pieces (86) on the left end of the front plate (11a), and the upper drawer (11) is locked.

  At the same time, at the time of locking, the rear end of the first lock arm (31) pivots upward, and the lifting / lowering rod (30) linked thereto rises, so that the linked upper door locking / unlocking device (33) is operated, and the second lock arm (32) is also rotated counterclockwise in a side view via the operating piece (45).

  When the operating plate (46) of the upper door locking / unlocking device (33) is pushed up, the contact plate (52) that is in contact with the upper end of the upper door rotates upward, and a pair of rotations fixed to both ends thereof. As shown in FIG. 6, the plate (53) is rotated counterclockwise when viewed from the side so that the locking claw (53a) at the tip engages with the inward piece (54a) of the locking metal fitting (54). The upper door (8) is locked in the closed position.

On the other hand, when the second lock arm (32) is rotated by the elevating rod (30), as shown in FIG. 6 and FIG. 2. Enter the locking groove (121a) of the locking mechanism (121).
Then, the inward movement of the lower actuating rod (114) integral with the second locking mechanism (121) is prevented, and the entire operation of the latch release mechanism (112) is locked. The operation of the lower drawer (12) with the operation handle (16) below becomes impossible.

  As a result, the left and right latches (97) entering the engagement hole (87) and engaging therewith cannot be turned upward, and the lower drawer (12) is also locked.

  When the dial lock (91) is operated to the unlocking side and the locking lever (92) rotates to the horizontal position, the elevating member (61) is pulled back upward by the tension coil spring (85), and the operating piece (65) The first locking arm (31) is separated from the locking claw (42). Thereby, as shown in FIG. 5, the first and second lock arms (31) and (32) are moved to the side surfaces via the operating pieces (44) and (45) when the elevating rod (30) is lowered by its own weight. The locking claw (42) of the first lock arm (31) is disengaged from the engagement groove (90) of the elastic locking fitting (89) and rotated in the clockwise direction, and the second lock arm (32) As shown by a two-dot chain line in FIG. 15, the locking claw (42) of the second locking mechanism is disengaged upward from the locking groove (121a) of the second locking mechanism (121).

As a result, the upper and lower drawers (11) and (12) are unlocked, and can be pulled forward by operating their operation handles (16) downward.
That is, when the operation handle (16) of the upper drawer (11) is pushed in the unlocked state, the side end of the latch release lever (98) is rotated upward via the interlocking plate (105), As shown in FIG. 11, when the latching claw (99) of the latch (97) is pushed up and separated from the engagement hole (87), the drawer (11) can be pulled out.

  On the other hand, when the lower drawer (12) is unlocked, the lower operating rod (114) can move sideways, so when the operating handle (16) is pushed, the interlock plate (122) The linked latch release mechanism (112) is operated, and the left and right operating levers (117) linked to it are simultaneously rotated, and the locking claws (99) of the left and right latches (97) are engaged with the engagement holes (87). ), The lower drawer (12) can be pulled out.

  At the same time, when the lifting / lowering rod (30) is lowered by unlocking, as shown in FIG. 5, the operation plate (46) of the upper door locking / unlocking device (33) linked therewith is also lowered and comes into contact with the upper end thereof. When the abutting plate (52) is rotated clockwise by its own weight, the locking claws (53a) of the left and right rotating plates (53) are disengaged from the inward pieces (54a) of the locking bracket (54), The upper door (8) is unlocked.

  The dial lock (91) is locked while the upper drawer (11) is pulled out. In this state, if the drawer (11) is pushed into the housing (7), as shown in FIGS. Furthermore, the upper surface of the locking claw (42) of the first lock arm (31) is brought into contact with the operating piece (65) moved downward and is rotated downward, and the lower end thereof is the elastic locking bracket (89). The elastic locking metal fitting (89) made of a leaf spring or the like bends downward, thereby preventing the locking claw (42) from being damaged.

  If the upper door (8) is opened, the dial lock (91) is locked, and the upper door (8) is closed with the lifting rod (30) and the operating plate (46) pushed up. The contact plate (52) comes into contact with the upper end of the operation plate (46), and the rotation plate (53) rotates first, interfering with the locking bracket (54) just before the door is closed. The plate (46) is linked to the lifting / lowering rod (30) via the cushion material (51), and compresses the cushion material (51) to move the operation plate (46) downward. It is possible to prevent the locking claws (53a) and the locking fittings (54) of 53) from being damaged, and the upper door (8) can be rotated to the closed position without any trouble.

  As explained above, not only the upper and lower drawers (11) and (12) but also the upper door (8) can be moved simultaneously by operating only one dial lock (91) on the upper drawer (11). Therefore, it is not necessary to provide a locking device for each of the drawers (11), (12) and the upper door (8), and the cost required for this can be suppressed.

  In the above embodiment, the present invention is applied to a wagon having upper and lower two-stage drawers (11) and (12). It can also be applied to an article storage fixture provided with a front door, such as a flip-up type flap door, which is opened in the horizontal direction and can be accommodated in the housing (7) in a horizontal state.

  In this case, the flap handle is set with the operation handle (16), the latch release mechanism (112), the operating lever (117), etc., which are the same as those provided on the front plate (12a) of the lower drawer (12), in the upside down direction. And they may be linked to the second lock arm (32) and the left and right latches (97) similar to those described above provided on the housing (7) side.

Moreover, in the said embodiment, although applied to the wagon which has the upper door (8) opened and closed upwards, this invention is a goods storage fixture provided with the shutter-like upper door which has a flexible horizontal slide. It can also be applied to.
In this case, a lock member (47) similar to that described above may be provided on the lower surface of the shutter-like door.
Furthermore, a cylinder lock or other locks can be used instead of the dial lock (91).

  In the above embodiment, the second locking mechanism (121) engaged with the front end of the second lock arm (32) is used as the locking means of the lower drawer (12). ) Can be directly engaged with and disengaged from the engaging hole (87) of the inwardly facing piece (86) of the front plate (12a), like the first lock arm (31). By doing so, the second locking mechanism (121) can be omitted.

It is a front view of a wagon provided with one embodiment of the present invention. Similarly, it is a side view with the right side plate removed. Similarly, it is a side view showing the upper and lower drawers and their guide members removed. Similarly, it is an enlarged plan view of an upper door pivot part. It is an enlarged side view at the time of unlocking of an upper and lower drawer locking / unlocking device and an upper door locking / unlocking device. Similarly, it is an enlarged side view at the time of locking. Similarly, it is an exploded perspective view of the upper part of the drawer locking / unlocking device and the upper door locking / unlocking device. It is a rear view of upper drawer. Similarly, it is a disassembled perspective view of the 1st locking mechanism provided in the rear surface of an upper drawer. It is an expansion vertical side view of the XX line of FIG. It is a perspective view of the principal part of the 1st latch apparatus attachment part for upper drawers. It is a rear view of a lower drawer. FIG. 13 is an enlarged longitudinal sectional side view taken along line XIII-XIII in FIG. 12. It is a perspective view of the left side part of the 2nd latch apparatus for lower drawers. It is a perspective view which shows the engagement relationship of the locking groove and 2nd lock arm in a 2nd locking mechanism. It is an expansion vertical side view of the principal part before the upper drawer pushing-in in the state which locked the dial lock. Similarly, it is an enlarged vertical side view of the main part when the upper drawer is pushed in.

(1) Wagon (goods storage fixtures)
(2) Casters
(3) Bottom plate
(4) Side plate
(5) Rear plate
(6) Article placement board
(7) Housing
(8) Upper door
(8a) Upper closing plate
(8b) Front blocking plate
(8c) Downward bending piece
(9) Handle
(10) Top plate
(11) (12) drawer
(11a) (12a) Front plate
(13) (14) Guide member
(15) Handle
(15a) Upward piece
(16) Operation handle
(17) Back plate
(18) Handle
(18a) (18b) Downward piece
(19) Hand space
(20) Stopper plate
(21) Door support bracket
(22) Bracket
(23) Rotary damper
(24) Guide groove
(25) Guide plate
(26) Stay
(27) Slide pin
(28) Pin
(29) Locking and unlocking device
(30) Lifting rod
(31) 1st lock arm
(32) Second lock arm
(33) Upper door locking / unlocking device
(34) Long hole
(35) Guide member
(35a) Buttocks
(36) Bracket
(37) Screw
(38) Holding piece
(39) Mating hole
(40) Axis
(41) Reinforcement rod
(42) Claw
(43) Actuator
(44) Actuator
(44a) Inward facing piece
(45) Actuator
(45a) Inward facing piece
(46) Actuating plate (actuating member)
(47) Lock member
(48) Long hole
(49) Bracket
(50) Downward projecting piece
(51) Cushion material
(52) Contact plate
(52a) Downward piece
(52b) Backward contact piece
(53) Rotating plate
(53a) Locking claw
(54) Locking bracket
(54a) Inwardly facing piece (locking part)
(55) Bracket
(56) Pin (Axis)
(57) 1st locking mechanism
(58) Guide groove
(59) Recess
(60) Guide member
(61) Lifting member
(62) Inward sliding piece
(63) Board
(64) Horizontal piece
(65) Actuator
(65a) Tilting piece
(66) Downward piece
(67) Mating hole
(68) Slider
(69) Bracket
(69a) Forward U-shaped part
(70) (80) Through hole
(81) flat head screw
(82) Female thread hole
(83) Locking piece
(84) Locking hole
(85) Tension coil spring
(86) Inward facing piece
(87) Engagement hole
(89) Elastic locking bracket
(89a) Bottom plate
(89b) Front plate
(89c) Upper plate
(89d) Downward bent piece
(90) Engagement groove
(91) Dial lock (lock)
(92) Locking lever
(93) Casing
(94) Rotating shaft
(95) First latch device
(96) Axis
(97) Latch
(98) Latch release lever
(98a) Upward projecting piece
(99) Locking claw
(99a) Inclined working surface
(100) Locking pin
(101) Spring receiving piece
(102) Compression coil spring
(103) Bracket
(104) Axis
(105) Interlocking plate
(105a) Locking part
(105b) Pressing piece
(106) Support plate
(107) Guide plate
(108) Grooved guide roller
(109) Tension coil spring
(110) Stopper piece
(111) Second latch device
(112) Latch release mechanism
(113) (114) Actuator
(113a) (114a) Actuator
(115) Bracket
(116) Connecting piece
(117) Actuating lever
(117a) (117b) Lever piece
(118) Axis
(119) Torsion spring
(120) Locking protrusion
(121) Second locking mechanism
(121a) Locking groove
(122) Interlocking plate
(122a) Locking part
(123) Bracket
(123a) Locking piece
(124) Stopper plate
(124a) Front piece
(125) Axis
(126) Push roller

Claims (3)

In an article storage fixture in which an upper door is provided on an upper portion of a casing having an upper surface opened so as to be able to open and close the opening, the lower door of the upper door is engaged with an engaging portion provided on the casing when the door is closed. A locking member having a detachable locking claw and a contact piece is pivotally mounted, and is moved up and down in conjunction with a locking / unlocking operation of a lock disposed on the inside of the housing. and pressing said locking claw to provide a working member which is adapted to engage the locking portion Rutotomoni, in the middle of the link mechanism between the lock and the actuating member, the locking member of times the operating member A locking device for an upper door in an article storage fixture, wherein an elastic body is provided that is elastically contracted when a downward force greater than a dynamic resistance is applied . Below the actuating member in the housing is provided with a lifting rod which moves up and down in conjunction with the unlocking operation of the lock, and該昇Fu杆the actuating member, according to claim 1 in conjunction with one another across the elastic body therebetween The locking device of the upper door in the article storage fixture of description. The locking device for the upper door in the article storage fixture according to claim 1 or 2, wherein the elastic body is made of a rubber-based cushion material.

Images