JP2022179000A - Stackable drawer type storage box with fall prevention locking mechanism - Google Patents

Abstract

To provide a drawer-type storage box in which upper and lower storage main bodies can simply be locked and connected, and this locking connecting state cannot be released simply.SOLUTION: A fall prevention locking mechanism 4 is included in which the rear of a storage main body 1 of the upper stage is prevented from being inclined to the upper part and falling down at the stacking. In the storage main body 1, the fall prevention locking mechanism 4 includes: an anti-slip positioning receiving part 5 for positioning a stacking position, when stacking another storage main body 1 onto the upper part of the storage main body 1; an anti-slip positioning locking part 6 locked with this anti-slip positioning receiving part 5; a projection lock receiving part 7; and a projection locking part 8 locked with this projection lock receiving part 7. A guiding convex curved guidance surface 9 for overcoming guidance is provided in the projection locking part 8. A flat anti-return locking surface 10 for preventing the overcoming backward movement is provided in the projection lock receiving part 7 and the projection locking part 8.SELECTED DRAWING: Figure 2

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer-type storage box with a fall-prevention locking mechanism that can be used by stacking vertically.

2. Description of the Related Art Conventionally, drawer-type storage boxes that can be used by stacking a plurality of items vertically have been implemented.

In such a stackable drawer-type storage box, when another storage box is simply stacked on the top of the storage box, when the drawer body of the upper storage box is pulled out to the front, the The center of gravity moves to the front side, and the rear side of the upper storage box tilts upward and falls down in some cases.

Therefore, conventionally, as shown in Patent Document 1 below, there has been proposed a drawer-type storage box in which measures are taken to prevent the upper storage box from tilting during stacking use.

Briefly explaining this patent document 1, it consists of a stackable box body and a drawer body which is stored in the box body so that it can be pulled out freely. A positioning portion for positioning another box body is provided, and an engagement edge portion is provided for engagement with a locking claw portion provided on the upper box body. A hook-shaped locking claw that engages with the engaging edge provided on the box body at the lower stage of the time is suspended from the rear side of the bottom with the tip facing forward, and on the top of the box body. When another box body is positioned by the positioning portion and placed on the box body, and the locking claw portion is pressed against the top portion of the lower box body, the locking claw portion is elastically deformed, or the locking claw portion is elastically deformed. The bottom portion provided with the locking pawl portion is elastically deformed, climbs over the engagement edge portion provided on the top portion of the lower box body, wraps around the engagement edge portion to the back side of the engagement edge portion, and wraps around the engagement edge portion. and the upper and lower box bodies are locked and connected, and even if a force acts on the upper box body to cause the rear side of the box body to rise, the locking claw portion is prevented from contacting the engaging edge portion. It is configured to be stacked and installed in a state in which it is locked to the back surface and prevented from floating up.

Further, the locking claw portion has a tip claw portion that engages and locks with the engaging edge portion and protrudes forward, and the top surface of the claw portion slopes down toward the front side. The downward inclined surface is formed as a locking surface that is locked to the back surface (lower surface) of the engaging edge portion, and the lower surface that is the back side of this locking surface is conversely raised toward the front. The engaging edge is formed in a tapered shape formed on an upwardly inclined surface, while the lower surface of the engaging edge portion is formed into a downwardly inclined surface that is inclined downward toward the front side, and this downwardly inclined surface is engaged with the claw portion. The locking surface is configured as an engaging surface that engages and locks with the locking surface, and even if a force acts to lift the rear side of the upper box body during stacking, the locking surface engages with the locking surface. The lock prevents the rear portion of the upper box body from tilting upward. When the stacking state is to be released, the front side of the box body is lifted so that the locking surface and the engaging surface, which are inclined surfaces, are smoothly aligned. It is configured such that the locking pawl is disengaged from the engaging edge (disengages the locked connection state) by sliding upward.

Japanese Patent No. 6010648

This type of stackable drawer-type storage box, even if it has a locking connection function during stacking as in Patent Document 1, the user may not notice the existence of the function itself or may lock and connect it. It is often the case that the user continues to use the box body while forgetting to place another box body on top of the box body.

In addition, in Patent Document 1, since the locking surface and the engaging surface for locking and connecting the upper and lower box bodies in a stacking state are mutually inclined surfaces, a heavy object cannot be stored in the upper drawer body. When the drawer body is pulled forward by a large amount and a large load is applied to the rear side of the upper box body, the inclined surfaces (locking surface and engaging surface) slide against each other. This tends to cause elastic deformation of the locking claw portion, and in some cases, the locking claw portion may be disengaged from the engaging edge portion to release the locked and connected state of the upper and lower box bodies.

The present invention relates to an improvement of the above Patent Document 1, and when used in a stacked state, it can be easily moved up and down by a downward pressing force due to its own weight or a downward pressing force due to a pressing operation from the top to the bottom. To provide a stackable drawer type storage box with an anti-fall locking mechanism capable of locking and connecting storage bodies together and preventing the locking and connection of the upper and lower storage bodies from being easily released.

The gist of the present invention will be described with reference to the accompanying drawings.

A drawer body 3 is housed in a drawer housing portion 2 of a housing body 1 so as to be slidably drawn forward, and when another housing body 1 is stacked on top of the housing body 1, both are detachably locked. When the drawer body 2 in the storage body 1 stacked on the top is pulled out and slid forward, the front of the drawer body 2 tilts downward and the rear of the storage body 1 tilts upward together with the storage body 1 and falls down. A stackable drawer-type storage box with a fall-prevention locking mechanism that is provided with a fall-prevention locking mechanism 4 that prevents
The fall-preventing locking mechanism 4 is provided on the top of the storage body 1 and serves to position the stacking position of the storage body 1 when stacking the other storage body 1 on the top of the storage body 1 . and a positioning receiving part 5 for stopping, which is provided at the bottom of the storage body 1 and used to prevent the upper part of the storage body 1 on the lower side from slipping when stacking the storage body 1 on the upper part of another storage body 1. It is provided with an anti-slip positioning locking portion 6 that engages with the positioning receiving portion 5 to prevent slippage,
A ridge engagement receiving portion 7 provided at the upper rear portion of the storage body 1 and protruding forward in the left-right direction, and a ridge engagement receiving portion 7 provided at the rear bottom portion of the storage body 1 and extending in the left-right direction and protruding rearward. Equipped with a projection locking portion 8 that locks with the stop receiving portion 7,
In a positioning state in which the anti-slip positioning locking portion 6 of the different storage body 1 is engaged with the anti-slip positioning receiving portion 5 of the storage main body 1, the another storage main body is placed on the top of the storage main body 1. 1, the protrusion engagement receiving portion 7 at the upper rear portion of the storage main body 1 is stored by the downward pressing force due to its own weight or the downward pressing force due to the pressing operation from the upper side to the lower side. The ridge engaging portion 8 on the rear bottom portion of the main body 1 climbs over from the upper side to the lower side, and the ridge engaging portion 8 is positioned below the ridge engagement receiving portion 7 and engaged therewith. configured to prevent return movement to
Either one of the ridge lock receiving portion 7 and the ridge lock portion 8 that are overridden and locked by the downward pressing force due to the dead weight or the downward pressing force due to the pressing operation from the upper side to the lower side, or Both sides are provided with guiding convex curved guiding surfaces 9 or guiding tapered guiding surfaces for guiding over riding, and flat return-movement blocking locking surfaces 10 for blocking backward movement after getting over are provided on the convex locking receiving portions 7. and the protruding locking portion 8,
Even if the pressing force is small, the projecting locking portion 8 is guided to the projecting locking receiving portion 7 by the guiding convex curved guiding surface 9 or the guiding tapered guiding surface, and the flat return movement is blocked by overcoming. The locking surfaces 10 are locked to each other, and the stacking state of the storage bodies 1 is locked and held. This invention relates to a stackable drawer-type storage box with an anti-falling mechanism, characterized in that it is constructed so that it cannot be engaged or disengaged unless deformation is caused by a force greater than pressure.

In addition, on the lower surface of the protruding locking portion 8, the guiding convex curved guiding surface 9 for guiding upwardly curving rearwardly or the guiding convex curved guiding surface 9 for guiding upwardly upwardly rearward inclination is provided. A taper guiding surface is provided, and the flat surface-like return motion prevention locking surface 10 is provided on the upper side surface of the projection locking portion 8 to block the backward movement of the projection locking portion 8. On the bottom surface of the portion 7, when the projection locking portion 8 rides downward and locks, the projection locking portion 8 engages with the flat-surface-like return-blocking locking surface 10 on the upper side of the projection locking portion 8. 2. The stackable drawer-type storage box with an anti-falling mechanism according to claim 1, characterized in that said flat surface-like return-blocking locking surface 10 is provided.

Since the present invention is constructed as described above, when it is used in a stacking manner, the upper storage body is automatically locked and connected to the lower storage body by its own weight due to the anti-fall locking mechanism, or a small push is applied. The upper storage body can be locked and connected to the lower storage body by simple manual operation using pressure. There have been cases where the user did not notice the existence of the function itself, or forgot to lock and connect, and continued to use the storage body while another storage body was placed on top of the storage body. Accordingly, since the upper and lower housing bodies can be easily locked and connected to each other as described above, it is expected that many users will utilize the fall prevention locking mechanism. The state is not easily released, and even if a heavy object is stored in the drawer body of the upper storage box, the rear of the upper storage body tilts upward when the drawer body is pulled out. To provide a stackable drawer storage box with a fall-preventive locking mechanism that is extremely practical, such as being well prevented from falling down.

In addition, according to the second aspect of the present invention, the projection locking receiving portion and the projection locking portion of the anti-fallover locking mechanism that reliably exhibits the above-mentioned functions and effects can be easily designed and realized with a simple configuration. It becomes a stackable drawer-type storage box with a collapse prevention mechanism that is even more practical.

It is a perspective view which shows a present Example. FIG. 4 is an explanatory partial enlarged perspective view showing a protruding locking portion and a protruding locking receiving portion of the fall prevention locking mechanism of the present embodiment; Another storage main body is placed on the storage main body of this embodiment, and the anti-slip positioning locking portion of the upper storage main body is engaged with the anti-slip positioning receiving portion of the lower storage main body to Fig. 10 is a side view showing a state in which the storage body in the upper stage is placed on the storage body in the upper stage without slipping. In FIG. 3, the positional relationship between the projection locking portion of the upper storage body and the projection locking receiving portion of the lower storage main body (the projection locking portion of the upper storage main body corresponds to the projection of the lower storage main body) FIG. 10 is an explanatory enlarged side view with a part cut away showing the state of being positioned above the row locking receiving portion). From the state of FIG. 3, the upper and lower storage bodies are locked and connected by applying a downward pressing force due to the weight of the upper storage body or a downward pressing force due to a pressing operation from the upper side to the lower side. It is a side view which shows (stacking use state). 5, the positional relationship between the projection locking portion of the upper storage body and the projection locking receiving portion of the lower storage main body (from the state of FIG. 3, the projection locking portion of the upper storage main body A state in which the projection lock receiving portion of the storage body is moved from the upper side to the lower side, and the projection locking portion is positioned below the projection lock receiving portion). FIG. 4 is a cutaway explanatory enlarged side view; In the stacking state shown in FIG. 5, when the center of gravity is moved forward by pulling out the upper drawer body, the projection locking portion of the upper storage body and the projection locking receiving portion of the lower storage body FIG. 11 is an explanatory side view showing a state in which the upper and lower housing main bodies are held in a locked and connected state by locking the return-movement-blocking locking surfaces to each other;

Optimal embodiments of the present invention will be briefly described with reference to the drawings to show the action of the present invention.

The drawer-type storage box of the present invention can be used by stacking a plurality of levels vertically by placing another storage body 1 on top of the storage body 1. The anti-slip positioning locking portion 6 (falling prevention locking mechanism 4) provided at the bottom of the upper storage main body 1 is attached to the anti-slipping positioning receiving portion 5 (falling prevention locking mechanism 4) provided. When locked, the storage body 1 in the upper stage is placed (stacked) on the storage body 1 in the lower stage in a non-slip state.

In addition, in the positioning state by locking the anti-slip positioning receiving part 5 and the anti-slip positioning locking part 6, the upper storage body 1 is pressed downward by its own weight or pressed from the upper side to the lower side. By applying a downward pressing force from a It moves from the upper side to the lower side so as to get over the projection locking receiving portion 7 (fall prevention locking mechanism 4), and after getting over it, the convex locking receiving portion 7 is moved to the lower side of the convex locking receiving portion 7. The stop portion 8 is positioned and locked to prevent upward return movement, and the upper and lower housing bodies 1 are locked and connected.

That is, according to the present invention, when another storage body 1 is stacked on top of the storage body 1, both are detachably locked, and when the drawer body 2 in the upper storage body 1 is pulled out and slid forward. The storing body 1 is provided with a fall-preventing locking mechanism 4 for preventing the front of the drawer body 2 from tilting downward and the rear of the storing body 1 from tilting upward.

Further, according to the present invention, either or both of the ridge engagement receiving portion 7 and the ridge engagement portion 8 are provided with a guiding convex curved guiding surface 9 or a guiding tapered guiding surface for guiding over riding. In addition, a flat return-movement blocking locking surface 10 is provided on both the projection locking receiving portion 7 and the projection locking portion 8 to block the backward movement of the upper storage box. Even if the downward pressing force due to the pressing force from the upper side to the lower side or the downward pressing force due to the pressing operation from the upper side to the lower side is small The projection locking portion 8 is guided to get over, and the flat return-movement blocking locking surfaces 10 are locked together, and the upper and lower housing bodies 1 are locked and connected in a stacking state.

Therefore, even if this type of stackable drawer-type storage box is provided with a locking connection function during stacking, the user may not notice the existence of the function itself or forget to lock and connect the storage box. Although there was a case where another storage main body was placed on the main body and continued to be used, according to the present invention, the upper and lower storage main bodies 1 are automatically locked and connected to each other, or Since the upper and lower housing bodies 1 can be locked and connected by a simple operation with a small pressing force even manually, it is expected that many users will use the fall prevention locking mechanism 4 .

In addition, in the stacking and locking connection state by the fall prevention locking mechanism 4, deformation must be caused by a force greater than the downward pressing force to lock the flat return-blocking locking surfaces 10 to each other. Cannot disengage.

Therefore, in the present invention, as described above, although the upper and lower storage bodies 1 can be easily locked and connected during stacking, this locked and connected state is not easily released. Even if a heavy object is stored in the drawer body 2 of the box, the rear of the storage body 1 on the upper stage is prevented from tilting upward and falling down when the drawer body 2 is pulled out.

A specific embodiment of the present invention will be described with reference to the drawings.

In the drawer-type storage box of this embodiment, a drawer storage part 2 is provided in a storage body 1 which can be vertically stacked, and a drawer body 3 is stored in the drawer storage part 2 so as to be slidably drawn forward. .

Specifically, although not shown in detail, the storage body 1 of this embodiment is formed in a form in which the side walls and the rear wall are connected to the left and right ends and the rear end of the bottom wall in an upright state. A base portion made of synthetic resin (integrally molded) and a top wall portion made of synthetic resin formed (integrally molded) in a shape substantially matching the shape of the upper opening of the base portion, and the base portion By locking and fixing the top wall portion to the upper opening of the upper opening so as to block the upper opening, the front surface has a substantially rectangular shape in plan view having a length in the front-rear direction as shown in FIG. is formed in a synthetic resin box-like body with an opening, and the internal space of this storage main body 1 is configured as the drawer storage portion 2 .

In addition, the ceiling wall (upper plate) of the housing body 1 is formed (integrally molded) into a shape that is shallowly recessed while leaving the outer peripheral edge. By placing grounding legs 13 and 14, which will be described later, on the bottom of another housing body 1, it is configured to be vertically stackable as shown in FIGS. In addition, although the drawing shows a state of stacking in two tiers, it is possible to stack three tiers or more without being limited to this.

Although not shown in detail, the drawer body 3 of the present embodiment is formed (integrally molded) into a box-like body having an approximately rectangular shape in plan view and having an opening at the top, having a length in the front-back direction. The wall portion is provided with a finger hook portion 12 for putting a hand on to pull out or pull out the drawer. It is formed in a shape having a width.

In this embodiment, when another storage body 1 is stacked on top of the storage body 1, both are detachably locked and connected, and the drawer body 2 in the upper storage body 1 is pulled out and slid forward. At the same time, the storage body 1 is provided with a fall-preventing locking mechanism 4 for preventing the front of the drawer body 2 from tilting downward and the rear of the storage body 1 to fall upward.

In addition, the fall-prevention locking mechanism 4 of this embodiment is provided on the top of the storage body 1, and when another storage body 1 is stacked on top of the storage body 1, the stacking of the storage body 1 is prevented. A positioning receiving part 5 for position positioning, and a positioning receiving part 5 for positioning, and an upper part of the storage body 1 on the lower side (lower stage) when stacking the storage body 1 on the upper part of another storage body 1, which is provided at the bottom of the storage body 1 Anti-slip positioning locking portion 6 that locks with the anti-slip positioning receiving portion 5 to prevent slippage.

Specifically, a protruding line having a length in the left-right direction and protruding upward is formed (integrally molded) at a position closer to the front side of the upper surface of the ceiling wall portion of the storage main body 1 . A strip is configured as the anti-slip positioning receiving portion 5 (see FIGS. 1, 3, 5 and 7).

On the other hand, although not shown in detail, on the lower surface of the bottom wall of the base portion of the storage main body 1, there are two places in front and behind a front position and a rear position spaced apart from the front position by a small distance. Grounding legs 13 and 14 are provided (integrally molded) for grounding.

More specifically, a ridge having a length in the left-right direction and projecting downward is formed (integrally molded) at the front side position of the lower surface of the bottom wall of the base portion of the housing body 1 . is configured as the front grounding leg 13, and an annular ridge that protrudes downward and continues in a square shape when viewed from the bottom is formed (integrally molded) at a slightly rearward position from the front side grounding leg 13. , this annular ridge is configured as the rear grounding leg 14 . When another storage body 1 is stacked on the top of the storage body 1 in such a manner that the front and back directions are aligned and the front and rear positions of the storage body 1 and the front and rear positions of the storage body 1 are substantially matched, the lower stage is placed between the front and rear ground legs 13 and 14 of the storage body 1 on the upper stage. The anti-slip positioning receiving portion 5 of the storage body 1 is arranged, and the front laterally elongated ridge portion of the rear grounding leg 14 is configured as the anti-slip positioning locking portion 6. Then, the front side surface portion of the anti-slip positioning locking portion 6 is engaged with the rear side portion of the anti-slip positioning receiving portion 5, so that the storage main body 1 in the upper stage is attached to the storage main body 1 in the lower stage. It is configured so as to prevent forward displacement (see FIGS. 3, 5, and 7).

The fall-prevention locking mechanism 4 of the present embodiment is provided at the upper rear portion of the housing body 1, and includes a projection locking receiving portion 7 projecting forward in the left-right direction and a rear bottom portion of the housing body 1. , and is provided with a projecting engagement portion 8 that protrudes rearward in the left-right direction and engages with the projection engagement receiving portion 7 .

Specifically, as shown in FIGS. 1 and 2, the middle portion in the left-right direction of the rear portion of the upper surface of the top wall portion of the storage body 1 is equal in height to the height of the outer peripheral edge portion around the recessed portion 11. Extending forward while maintaining the height (the top wall portion is formed in a shape having the recessed portion 11 with the tall forward extending portion 15 left in the left and right intermediate portions of the upper rear portion (integrally molded ) and), and furthermore, at the front end of this tall forward extension 15, there is formed a projecting flange that protrudes horizontally forward in the form of a short thin plate with the same horizontal width as the horizontal width of this tall forward extension 15. (Integrally molded), the projecting collar portion is configured as the projecting engagement receiving portion 7 projecting forward in the left-right direction.

On the other hand, as shown in FIG. 2, the rear laterally elongated ridge 14A of the rear grounding leg 14 located behind the lower surface of the bottom wall of the base body 1 of the housing body 1 has a rear surface portion in the middle in the left-right direction. The recess 16 has a lateral width larger than the lateral width of the protruding engagement receiving portion 7. It is formed in a shape having a slightly wide left-right width, and is constructed so as to be able to dispose the projecting engagement receiving portion 7 in the concave portion 16. Further, in the concave portion 16, a short thin plate-like shape extends horizontally rearward. A protruding flange portion is formed (integrally molded) (the concave portion 16 is formed in a form in which the convex flange portion remains), and the convex flange portion in the concave portion 16 is long in the left-right direction and protrudes backward. It is configured as a ridge locking portion 8 .

Then, another storage main body 1 is stacked on top of the storage main body 1, and the anti-slip positioning locking portion 6 of the upper storage main body 1 is engaged with the anti-slip positioning receiving portion 5 of the lower storage main body 1. In the stopped positioning state, as shown in FIGS. 3 and 4, the protruding tip of the projecting locking portion 8 in the concave portion 16 of the upper storage main body 1 moves through the lower opening portion of the concave portion 16 to the lower side. so that the rear part of the storage body 1 on the upper stage is placed in an inclined state with the rear part facing slightly upward by abutting from above while slightly overlapping the protruding tip of the projecting engagement receiving portion 7 of the storage body 1 of the above. The positional relationship between the anti-slip positioning receiving portion 5, the anti-slip positioning locking portion 6, the ridge locking receiving portion 7 and the ridge locking portion 8, the ridge locking receiving portion 7 and the ridge locking portion 8 At this time, the downward pressing force due to its own weight indicated by the arrows in FIGS. The projecting locking portion 8 of the storage main body 1 in the upper stage climbs over the projecting lock receiving portion 7 of the storage main body 1 from the upper side to the lower side, and the projecting to the lower side of the projecting lock receiving portion 7 is carried out. The row locking portion 8 is positioned and locked, and the upward return movement of the projection locking portion 8 is prevented, and as shown in FIGS. It is configured to be placed (stacked) in a horizontal state equivalent to the

Specifically, the convex locking portion 8, which rides over and locks due to a downward pressing force due to its own weight or a downward pressing force due to a pressing operation from the upper side to the lower side, is provided with a guiding convex curved guide for riding over guidance. A surface 9 is provided (molded integrally), and a flat return-blocking locking surface 10 for blocking backward movement after overriding is provided on both the projection locking receiving portion 7 and the projection locking portion 8. is provided (integrally molded), and even if the pressing force is small, the projecting locking portion 8 is guided to the projecting locking receiving portion 7 by the guiding convex curved guide surface 9 to overcome and flatten. The return-movement-preventing locking surfaces 10 are locked to each other, the stacking state of the storage bodies 1 is locked and held, and the locking of the flat return-movement-blocking locking surfaces 10 in the positioning state is prevented. Therefore, it is configured so that it cannot be engaged and disengaged unless deformation is caused by a force greater than the pressing force.

More specifically, as shown in FIGS. 4, 6 and 7, on the lower surface of the rearward protruding front end of the projection locking portion 8, there is provided the above-mentioned overriding guide curved upwardly toward the rear. A guiding convex curved guide surface 9 is provided, and the surface direction for preventing the backward movement over the upper side surface of the projecting tip portion of the projecting locking portion 8 is horizontal (parallel to the installation portion (installation surface)). ) The return-movement-blocking locking surface 10 is provided in the form of a flat surface. A flat surface whose surface direction is horizontal (parallel to the installation surface) and engages with the flat return motion prevention engaging surface 10 on the upper side surface of the protruding engaging portion 8 when engaged over to the side. , the return-blocking locking surface 10 is provided.

Moreover, especially in the case of this embodiment, when even a small amount of stored items are stored in the drawer body 3 of the upper storage box, the weight of the stored items is added to the weight of the upper storage box, and the convex curved guide surface is guided. The degree of curvature of the guiding protruding curved guide surface 9 is set so that the protruding engagement portion 8 is guided by the protruding engagement receiving portion 7 by 9 to get over it. In other words, the upper and lower storage bodies are arbitrarily (automatically) locked and connected to each other simply by storing the stored items in the upper drawer body 3 after stacking.

In addition, in this embodiment, when the storage main body 1 is stacked and the projection locking portion 8 climbs over the projection locking receiving portion 7, the return-movement-preventing locking surfaces 10 are always in contact with each other. It is configured so that it does not stop, but is separated vertically with a small gap (see FIG. 6). That is, when the drawer body 3 of the upper storage box is pulled out and the rear portion of the upper storage main body 1 is slightly lifted upward, the projection engaging portion 8 of the upper storage main body 1 moves upward and this protrusion is lifted. The return motion prevention locking surface 10 of the row locking portion 8 is face-to-face locked to the return motion blocking locking surface 10 of the projection locking receiving portion 7 of the storage body 1 in the lower stage. is prevented from returning to the projection lock receiving portion 7 (see FIG. 7). Although not shown, a configuration is employed in which the return-movement-preventing locking surfaces 10 are always in a face-to-face locked state after the projecting locking portion 8 rides over the projecting locking receiving portion 7. Also good.

In addition, a configuration is adopted in which the above-mentioned protruding engagement receiving portion 7 is provided with the above-mentioned guiding protruding curved guide surface 9 for overriding guidance that is downwardly curved toward the front on the upper surface of the forward protruding tip portion. Alternatively, a configuration may be employed in which the guiding protrusive curved guide surface 9 is provided on both the protruding engagement portion 8 and the protruding engagement receiving portion 7 . In addition, instead of the guiding convex curved guide surface 9 (if it is provided in the projecting engagement portion 8, it is inclined upward toward the rear on the lower surface of the tip of the projecting rearward, and the projection engagement receiving portion 7 If provided, a configuration may be adopted in which a guiding tapered guiding surface for overriding guidance is formed on the upper side surface of the forward protruding tip portion, which slopes downward toward the front.

Further, in this embodiment, in addition to the locking connection method during stacking as described above, another storage main body 1 is placed on top of the storage main body 1 installed in the installation portion from above in a state where the position is shifted forward. By placing, the anti-slip positioning locking portion 6 (rear side grounding leg 14) of the upper storage main body 1 is placed on the anti-slip positioning receiving portion 5 of the lower storage main body 1 (upper storage The main body 1 is placed in an inclined state with the front side facing slightly upward), and then the upper storage main body 1 is slid rearward relative to the lower storage main body 1, thereby engaging the upper storage main body 1. It is also possible that the upper and lower storage bodies 1 are locked and connected by locating the stop portion 8 below the projection engagement receiving portion 7 of the storage body 1 in the lower stage.

It should be noted that the present invention is not limited to this embodiment, and the specific configuration of each component can be appropriately designed.

REFERENCE SIGNS LIST 1 storage body 2 drawer storage section 3 drawer body 4 anti-fall locking mechanism 5 anti-slip positioning receiving section 6 anti-slip positioning locking section 7 protruding locking receiving section 8 protruding locking section 9 guiding convex curved guide surface
10 Anti-return locking surface

Claims (2)

A drawer body is stored in a drawer storage part of a storage body so as to be slidably drawn forward, and when another storage body is stacked on top of the storage body, both sides are detachably locked and stacked on the top. When the drawer body in the storage body is pulled out and slid forward, the front of the drawer body together with the storage body is provided with a fall prevention locking mechanism that prevents the rear of the storage body from tilting upward and falling. A stackable pull-out storage box with an anti-tipping locking mechanism comprising:
The fall prevention locking mechanism is provided on the upper part of the storage main body, and is an anti-slip positioning receiving part for positioning the stacking position of the separate storage main body when stacking the separate storage main body on the upper part of the storage main body. and is provided at the bottom of the storage body, and when the storage body is stacked on top of another storage body, it engages with the anti-slip positioning receiving portion at the top of the storage body on the lower side to prevent slippage. It is provided with a positioning locking part for anti-slipping,
A projecting engagement receiving portion provided at the upper part of the rear portion of the storage body and projecting forward in the left-right direction, and the projecting engagement receiving portion provided at the rear bottom portion of the storage body and projecting backward in the left-right direction. and a protruding locking portion that locks,
When stacking the other storage body on top of the storage body in a positioning state in which the anti-slip positioning locking portion of the other storage body is engaged with the anti-slip positioning receiving portion of the storage body , a downward pressing force due to its own weight or a downward pressing force due to a pressing operation from the upper side to the lower side causes the ridge lock receiving portion at the upper rear portion of the storage body to engage the ridge at the rear bottom portion of the storage body. The engaging portion climbs over from the upper side to the lower side, and the projecting engagement portion is positioned below the projecting engagement receiving portion for engagement, thereby preventing upward return movement. ,
Either or both of the ridge locking receiving portion and the ridge locking portion that are overridden and locked by the downward pressing force due to the dead weight or the downward pressing force due to the pressing operation from the upper side to the lower side. In addition, a guiding convex curved guiding surface or a guiding tapered guiding surface for overriding guidance is provided, and a flat return movement blocking locking surface for blocking backward movement after riding over is formed between the convex locking receiving portion and the convex locking receiving portion. It is provided on both sides of the stop,
Even if the pressing force is small, the projecting locking portion is guided to the projecting locking receiving portion by the guiding convex curved guide surface or the guiding tapered guiding surface, and the flat return motion blocking locking surface is overcome. The stacking state of the storage bodies is locked and held, and the flat return-movement-preventing locking surfaces lock each other in the positioning state, so that a force greater than the pressing force is applied. A stackable drawer-type storage box with an anti-falling mechanism, characterized in that it is constructed so that it cannot be engaged and disengaged without causing deformation. On the lower surface of the projecting locking portion, there is the guiding convex curved guiding surface for guiding upwards toward the rear or the guiding tapered guiding surface for guiding upwards sloping toward the rear. In addition, a flat surface-like return-blocking locking surface is provided on the upper side surface of the projection locking portion to block the backward movement of the projection locking portion. A flat-surface-like return-blocking engagement that engages with the flat-surface-like return-blocking locking surface on the upper side surface of the projection-locking portion when the projection-locking portion is engaged downwardly. 2. A stackable drawer-type storage box with a fall prevention mechanism according to claim 1, wherein a stop surface is provided.

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