JP3470630B2 - Drawer mounting structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer mounting structure widely applicable to wagons, cabinets, desks and the like.

[0002]

2. Description of the Related Art For example, as one of the structures of a wagon, a suspension rail mechanism is provided on the inner surfaces of the left and right side walls of the wagon body, and a drawer is attached to the tip rail of this suspension rail mechanism. It is known that the operation of the rail mechanism can be used to greatly pull the wagon body forward from the storage position.

[0003]

By the way, conventionally, the attachment of the drawer to the suspension rail mechanism is conventionally performed by screwing the drawer to the tip rail. The reason is that the drawer is at least immovable in the front-rear direction with respect to the tip rail, and it is necessary to prevent the drawer from coming off the tip rail when the drawer is accidentally kicked up. In other words, the drawer may be easily lifted from the tip rail and disengaged from the tip rail by simply providing an engaging portion formed between the drawer and the tip rail, the engaging portion including the opening window and the protrusion that closely engage in the front-rear direction. On the contrary, if the engaging portion including the opening window and the engaging claw that is engaged by simply moving the drawer forward and backward relative to each other is provided between the drawer and the tip rail, the drawer does not react with the tip rail. This is because backlash in the front-back direction will occur when it is biased in the opposite direction.

Under these circumstances, conventionally, it is customary to prevent the drawer from moving back and forth and being pulled out by screwing a large number of drawers to the tip rail. Therefore, there is a problem that the mounting work is complicated.

[0005]

In order to solve the above problems, the present invention adopts a simple engaging structure and attaches a drawer to a movable receiving portion such as a tip rail without back and forth. It is an object of the present invention to provide a drawer mounting structure in which the drawer is prevented from being disengaged from the movable receiving portion all at once due to a force from below.

[0006]

Therefore, in the drawer mounting structure according to the present invention, when the drawer is attached to the movable receiving portion, the drawer can be moved forward or backward between the rear end portion of the drawer and the corresponding position of the movable receiving portion. A rear engaging portion is provided for locking the drawer to the movable receiving portion so that the drawer cannot be moved upward by sliding in that direction, and the sliding movement is performed between the front end portion of the drawer and the corresponding position of the movable receiving portion. Sometimes a drawer is operated in a stepwise manner to provide a front engaging portion that locks the drawer to the movable receiving portion so that the drawer cannot move forward and backward. It is characterized in that the engagement cannot be released.

According to this structure, the drawer is fixedly attached to the movable receiving portion so that the rear end of the drawer is immovably locked via the rear engaging portion, and the front end is fixed to the front engaging portion. When the drawer is operated in the front-rear direction, the front engagement part is locked so that the drawer cannot be disengaged from the movable receiving part only by the upward movement. The drawer and the movable receiving part work together without rattling, and even if the drawer is kicked up from below, it is effectively prohibited by the front and rear engaging parts to withdraw from the movable receiving part all at once. Become.

Moreover, when the drawer is attached to the movable receiving portion, both the engaging portions can be constructed by sliding the drawer and operating the front end portion stepwise in the meantime. The drawer can be effectively attached to the movable receiving portion without the need for complicated attachment work such as. Further, if the reverse operation is performed, both engaging portions can be easily disengaged from the movable receiving portion.

Moreover, if the screwing is not required, it is possible to have a structure in which both engaging portions are completely covered from the periphery at a predetermined mounting position. It is also possible to make the appearance more favorable without impairing the appearance. As a specific embodiment, the front engagement portion has a through hole that opens to either the drawer or the movable receiving portion, and a protrusion that is provided in the other and that fits tightly in the front-rear direction with respect to the through hole. And a front engaging claw that extends in the front-rear direction from the projecting end of the projecting portion and is positioned at a position deviated from the through hole.

In this case, it is desirable that the amount of protrusion of the protrusion and the distance from the front engagement claw to the surface on which the through hole is provided at the time of engagement are set to be substantially equal. In order not to damage the appearance and to make the drawer easy to use, it is preferable that the through hole is provided on the movable receiving portion side and the projecting portion is provided on the drawer side. In addition, as another specific embodiment,
The rear engaging part is set to the rear end of either the drawer or the movable receiving part, and the other is projected from the other and engages with the engaging part from the front-back direction to prohibit upward movement. And a rear engaging claw.

In order to add a lateral positioning function to the rear engaging portion, the engaging piece is provided with a taper groove opened to the rear end side, and the rear engagement is provided in the taper groove at a predetermined attaching position of the drawer. It is desirable to have the artificial jaws enter. In order to slide the drawer backward so that the rear engaging portion can be formed, it is convenient to set the engaging piece on the drawer side and provide the rear engaging claw on the movable receiving portion side.

As a preferred application example of the present invention, the movable receiving portion may be a tip rail of a suspension rail mechanism or a bracket attached to the rail.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a wagon A to which this embodiment is applied. This wagon A has a three-stage structure in which an upper drawer 2A, a middle drawer 2B and a lower drawer 2C are freely inserted into and removed from the wagon body 1, and the upper drawer 2
A is provided with a key operation portion 21 that constitutes a lock mechanism, and by operating this key operation portion 21, the upper drawer 2A can be locked at the storage position. Further, the middle drawer 2B and the lower drawer 2C are provided with a safety lock mechanism (not shown) that operates in conjunction with the lock mechanism of the upper drawer 2A. This safety lock mechanism locks both the drawer 2B in the middle stage and the drawer 2C in the lower stage at the same time in the storage position in conjunction with the lock mechanism described above, and while the lock mechanism is released, the drawer 2B in the middle stage and the drawer 2C in the lower stage Drawer 2C
When any one of them is pulled out, the other is locked so that it cannot be pulled out to prevent forward fall.

In such a structure, the drawers 2A, 2B, 2 are provided on the left and right side walls 11 of the wagon body 1.
The suspension rail mechanism 3 is arranged at a position corresponding to C, and the drawer rails 2A, 2B, 2C are respectively attached to the tip rails 31 (see FIGS. 2 and 3) of these suspension rail mechanisms 3 via brackets 4 which are movable receiving portions. I am trying to attach.

The suspension rail mechanism 3 will be described in detail by taking the middle drawer 2B as an example.
As shown in FIG. 2 and FIG. 3, a base end rail 32 and a tip rail 31 are connected in series so as to be relatively slidable in the longitudinal direction. The tip rail 31 is stored in the storage space of the wagon body 1 at the storage position. Then, at the drawn-out position, substantially the entire structure can be projected forward from the storage space.

The bracket 4 is attached to a vertical wall facing the storage space of the tip rail 31 by an appropriate means such as welding, and has an upright piece 41 and a horizontal piece 42.
It has a letter shape. Then, the horizontal piece 42 to the standing piece 41
A rectangular through-hole 42a in a plan view at a front end thereof over a part of
And a rear engaging claw 42b bent forward and upward is provided at the rear end of the horizontal piece 42.

On the other hand, the drawer 2B is a cabinet-shaped drawer body 21 which is opened upward, and a front wall 21 of the drawer body 21.
The end plate 22 attached to a is provided with a protrusion 23 that is loaded on the horizontal piece 42 of the bracket 4 along the longitudinal direction on the outer surface of the side wall 21b of the drawer body 21. The ridge 23 is formed by plastically deforming a sheet metal material so that at least the outer surface has a U-shaped cross section, and is fixed to the side wall 21b of the drawer body 21 by welding or the like. At the mounting position, at the corresponding position of the through hole 42a in the bottom wall 23a of the ridge 23, as shown in FIG. 2, FIG. 4 and FIG.
3b and a front engaging claw 23c extending rearward from the projecting end of the projecting portion 23b are integrally formed, and the bottom wall 23a is also provided.
As the engaging piece of the present invention, a taper groove 23d opened to the rear end side is cut out at the corresponding position of the rear engaging claw 42b.

That is, at the predetermined mounting position, as shown in FIG. 6, the projecting portion 23b is set so as to be tightly fitted to the through hole 42a in the front-rear direction, and the front engaging claw 23c is moved from that position. It is positioned in the lower space of the horizontal piece 42 at a position deviated rearward from the through hole 42a, and at that time, the protrusion amount L1 from the lower surface of the bottom wall 23a of the protruding portion 23b and the upper edge of the engaging claw 23c are transparent. The distance L2 to the surface on which the hole 42a is provided, that is, the distance to the lower surface of the horizontal piece 42 is set to be substantially equal, and the through hole 42a and the protruding portion 23 are provided.
b and the front engaging claw 23c locks the front end of the drawer 2B so that the front end of the drawer 2B cannot move back and forth to the bracket 4 and is not disengaged from the bracket 4 only by the upward movement of the drawer 2B. The front engaging portion X of the invention is formed.

Further, as shown in FIGS. 6 and 9, the opening width d1 of the inner end 23d1 of the tapered groove 23d is set in advance to be substantially equal to the width dimension d2 of the base end 42b of the rear engagement claw 42b.
At the predetermined mounting position, the base end 42b1 of the rear engagement claw 42b is allowed to enter the inner end 23d1 of the taper groove 23d, and the engagement piece 23a having the taper groove 23d and the rear engagement claw 42b. Form a rear engagement portion Y of the present invention that locks the rear end portion of the drawer 2B to the bracket 4 so as not to move upward. In the figure, reference numeral 51 is a rail cover, and 52 is a rail cover 5.
It is an attachment member for attaching 1 to the upper edge of the side wall 21b of the drawer 2B.

Next, a procedure for attaching the drawer 2B to the bracket 4 in the above structure will be described. The tip rail 31 of the suspension rail mechanism 3 is previously pushed into the storage position, the drawer 2B is slightly tilted backward as shown in FIG. 4, and the bottom wall 23a of the ridge 23 provided on the side wall 21b thereof is set to the tip rail 31. It is brought into contact with the horizontal piece 42 of the fixed bracket 4 to load a part of the load of the drawer 2B. Therefore, in the drawer 2B, the outer dimension between the left and right side walls 21b, 21b of the main body 21 is slightly smaller than the inner dimension between the upright pieces 41, 41 of the bracket 4 provided on the left and right tip rails 31 in advance. It is set to be, and side wall 2
1b, the bottom wall 23a of the ridge 23 is attached to the bracket 4
It is set so as to be positioned on the horizontal piece 42 of, and even if the drawer 2B is inserted randomly between the brackets 4 and 4,
The drawer body 21 is guided by the upright pieces 41 of the bracket 4, and the ridges 23 are naturally arranged at positions suitable for engagement. Then, as it is, the drawer 2B is slid backward as shown by the arrow in the figure, and
As shown in FIG. 7, the taper groove 23d is partially engaged with the rear engaging claw 42b, and the front engaging claw 23c is further inserted from that position.
Position above a. Next, pull out from this state 2B
By slightly dropping the front end side of the front engaging claw 23c
To the position shown in FIG. 5 inside the through hole 42a.
This state is naturally obtained by the front portion 23b1 of the protruding portion 23b contacting the horizontal piece 42 of the bracket 4. Thereafter, the drawer 2B is slid further rearward from that position, and the drawer 2B is moved in the vicinity of the proximal end 42b1 of the rear engagement claw 42b contacting the inner end 23d1 of the tapered groove 23d as shown in FIGS. By inserting the front end side as another paragraph, finally, as shown in FIG. 6, the protruding portion 23b is tightly fitted in the through hole 42a in the front-rear direction, and the attachment of the drawer 2B to the bracket 4 is completed.

With such a construction, the drawer 2B is fixedly fixed to the bracket 4 at the rear end portion via the rear engagement portion Y so that the drawer 2B cannot move upward, and the front end portion is engaged at the front. The front engaging claw 23c cannot be moved back and forth through the portion X and only the upward movement can be performed.
Is brought into contact with the lower surface of the horizontal piece 42 and cannot be disengaged from the bracket 4. Therefore, when the drawer 2B is operated in the front-rear direction, the drawer 2B moves together with the tip rail 31 via the bracket 4 via the front engaging portion X. It can operate integrally without rattling, and even if the drawer 2B is kicked up from below, it is effectively prohibited by the front and rear engaging portions X and Y to be pulled out from the bracket 4 at once.

Moreover, when the drawer 2B is attached to the bracket 4, the drawer 2B is slid as described above, and the front end side of the drawer 2B is operated stepwise as shown by the arrows in FIGS. By doing so, both the engaging portions X and Y can be configured, so that the drawer 2B can be effectively attached to the bracket 4 without the need for complicated attachment work such as screwing multiple points. Also,
Even when the operation is reversed, the disengagement of both the engaging portions X and Y from the bracket 4 can be facilitated, and the convenience of the work relating to attachment and detachment can be significantly improved.

In addition, if the mounting structure does not require screwing as described above, both engaging portions X and Y are completely covered from the periphery at a predetermined mounting position as in this embodiment. Therefore, the appearance can be made more preferable without impairing the ease of attachment and detachment. In particular, as a specific structure, the front engaging portion X has a through hole 42a that opens to the bracket 4, a protruding portion 23b provided on the drawer 2B so as to be tightly fitted in the through hole 42a, and the protruding portion 23b. And a front engaging claw 23c extended from the protruding end of the sheet metal to a position separated from the through hole 42a, and the sheet metal material can be manufactured by pressing or bending. Can be simplified.

In this case, the protrusion amount L1 of the protrusion 23b
Since the distance L2 from the front engaging claw 23c to the lower surface of the horizontal piece 42 at the time of engagement is set to be substantially equal to each other, the amount of floating of the drawer 4 on the front end side is suppressed as small as possible against the kicking force from below. As a result, the attached state of the drawer 2B can be made more stable. In particular, since the through hole 42a is provided on the bracket 4 side and the projecting portion 23b is provided on the drawer 2B side, the through hole 42a and the projecting portion 23b, the front portion of the drawer 2B and Engaging claw 23
It is possible to prevent the appearance from being damaged without exposing c and the like, and to ensure the ease of use of the drawer.

In addition to the above, in this embodiment, the rear engaging portion Y is
The engagement piece 23a set to the drawer 2B and the engagement piece 23a
a and rear engaging claws 42b protruding from the bracket 4 so as to prohibit the upward movement of the engaging piece 23a by engaging with a in the front-rear direction. These are also formed by pressing or bending a sheet metal material. Since it can be manufactured in a certain degree, the structure and the manufacturing process can be simplified.

In this case, the engaging piece 23a is provided with a taper groove 23d which is open to the rear end side, and the rear engaging claw 42b is inserted into the taper groove 23d. Drawer 2B with horizontal positioning function added
The mounting state of can be made more reliable. Particularly, the engagement piece 23a is set to the drawer 2B side, and the rear engagement claw 4
Since 2b is provided on the bracket 4 side, the rear engagement portion Y can be formed only by sliding the drawer 2B rearward.

Since the present embodiment has the above-mentioned structure, the suspension rail mechanism 3 is properly pulled out in a state in which an unstable object is sluggish at the pulling out position like the tip rail 31 and is pushed into the stable position. This is a very practical effect that can be attached, which is never obtained in the screwed structure. The above is exactly the same when the other drawers 2A, 2C are attached to the bracket. In addition, the specific configuration of each part is
The present invention is not limited to the illustrated embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, with respect to the front engaging portion, it does not prevent that the through hole is provided on the drawer side and the protruding portion and the front engaging claw are provided on the bracket side upward, and the horizontal piece of the bracket is provided with respect to the rear engaging portion. The engaging piece of the present invention does not prevent engagement of a downward rear engaging claw provided on the drawer side with the engaging piece. At this time, it is possible to mount the drawer by sliding it forward instead of sliding it backward. Further, in the above embodiment, the bracket is the movable receiving portion for attaching the drawer, but the tip rail itself may be used as the movable receiving portion and the drawer may be directly attached thereto.

[0028]

The present invention is carried out in the form described above, and has the following effects. That is,
The attachment structure of the drawer according to the present invention, when attaching the drawer to the movable receiving portion such as the tip rail of the suspension rail, attaches the rear end of the drawer to the movable receiving portion via the rear engaging portion formed by the sliding operation. It is locked so that it cannot move upward, and the front end of the drawer can be locked in a state where it cannot move forward and backward and a certain amount of upward movement is prohibited through a front engagement portion formed through stepwise operation. It is a thing.
Therefore, even though the structure does not require screw operation for attachment / detachment, even if the play in the front-rear direction of the drawer with respect to the movable receiving portion is eliminated, and even if the drawer is inadvertently kicked up from below, It is possible to secure a stable use condition without the risk that the drawer will pop up and come off.

Moreover, with such a structure, a structure in which both engaging portions are completely hidden from the outside is possible, so that the appearance at the time of mounting can be easily and effectively improved. In addition to the above, the front engaging portion has a through hole that opens to one of the drawer or the movable receiving portion, a protruding portion that is tightly fitted to this through hole in the other, and a transparent portion from the protruding end of this protruding portion. If the holes and the front engaging claws that extend to a position where they do not overlap are used, they can be manufactured simply and inexpensively using a sheet metal material or the like.

In this case, if the amount of protrusion of the protrusion and the distance from the front engaging claw to the surface on which the through hole is provided at the time of engagement are set to be substantially equal to each other, the kicking force from below can be increased. On the other hand, the amount of floating on the front end portion side of the drawer can be suppressed to a minimum and the attached state of the drawer can be made more stable. Especially, if the through hole is provided on the movable receiving part side and the projecting part is provided on the drawer side, the appearance of the drawer upper surface can be adjusted,
Good usability can also be guaranteed.

Further, the rear engaging portion is engaged with the engaging piece which is set to one of the drawer or the movable receiving portion, and the other engaging piece which is on the other side is engaged from the front side to prohibit the upward movement of the engaging piece. Even when it is configured with the rear engaging claws, they can be manufactured simply and inexpensively using a sheet metal material or the like. In this case, if the engaging piece is provided with a taper groove that is open to the rear end side and the rear engaging claw is inserted into this taper groove, the rear engaging portion is provided with a lateral positioning function. The drawers in the same direction can be made better.

In particular, if the engagement piece is set on the drawer side and the rear engagement claw is provided on the movable receiving portion side, the rear engagement portion can be formed only by sliding the drawer backward. .
The present embodiment having the above-described configuration can be particularly useful when attaching the drawer to the tip rail of the suspension rail mechanism.

[Brief description of drawings]

FIG. 1 is a perspective view of a wagon to which an embodiment of the present invention is applied.

FIG. 2 is an exploded perspective view of the relevant part.

FIG. 3 is a front sectional view of the same main part.

FIG. 4 is a left side view of the same.

FIG. 5 is an operation explanatory view of the same embodiment.

FIG. 6 is an explanatory view of the operation of the same embodiment.

FIG. 7 is a partial plan view corresponding to FIG.

FIG. 8 is an explanatory view of the operation of the same embodiment.

FIG. 9 is an operation explanatory view of the same embodiment.

[Explanation of symbols]

2A, 2B, 2C ... Drawer 4 ... Movable receiving part (bracket) 23a ... Engaging piece 23b ... projection 23c ... Front engaging claw 23d ... taper groove 42a ... through hole 42b ... Rear engaging claw X ... Front engaging part Y ... Rear engaging part

─────────────────────────────────────────────────── ───Continued from the front page (56) References JP-A-7-184729 (JP, A) Actually open 6-33533 (JP, U) Actually open 59-86148 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) A47B 88/04

Claims (8)

(57) [Claims] 1. A mounting structure for mounting a drawer to a movable receiving portion, wherein the drawer is slidably moved back and forth between a rear end portion of the drawer and a corresponding position of the movable receiving portion. Providing a rear engaging portion for locking the drawer to the movable receiving portion so that the drawer cannot be moved upward, and operating the drawer stepwise between the front end portion of the drawer and the corresponding position of the movable receiving portion during the slide movement. the the drawer back-and-forth movement as not to provide a front engaging portion for engaging the movable receiving portion, the front engagement portion, only the upward movement operation of the drawer and shall not be disengaged from the movable receiving portion by ,
The drawer is moved from the movable receiving part at once in response to the force from below.
Drawer mounting structure characterized in that it will not fall off . 2. A front engaging portion, a through hole which opens to either one of the drawer and the movable receiving portion, and a protruding portion which is provided in the other and tightly fitted in the front-rear direction with respect to the through hole. 2. The attachment structure for a drawer according to claim 1, further comprising a front engaging claw that extends in the front-rear direction from the projecting end of the projecting portion and is located at a position displaced from the through hole. 3. The protrusion amount of the protrusion and the distance from the front engagement claw to the surface on which the through hole is provided at the time of engagement are set to be substantially equal to each other. Drawer mounting structure. 4. The drawer mounting structure according to claim 2, wherein the through hole is provided on the movable receiving portion side and the projecting portion is provided on the drawer side. 5. An engaging piece having a rear engaging portion set at the rear end of one of a drawer and a movable receiving portion, and an engaging piece protruding from the other and engaging with the engaging piece in the front-rear direction. The drawer mounting structure according to claim 1, 2, 3 or 4, characterized in that the drawer mounting structure comprises a rear engagement claw that prohibits upward movement of the engagement piece. 6. The engagement piece is provided with a taper groove open to the rear end side, and the rear engagement claw is inserted into the taper groove at a predetermined attachment position of the drawer. Item 5. The drawer mounting structure according to item 5. 7. The engagement piece is set on the drawer side, and the rear engagement claw is provided on the movable receiving portion side.
Drawer mounting structure described. 8. The movable receiving portion is a tip rail of a suspension rail mechanism or a bracket attached to the tip rail.
Or the attachment structure of the drawer described in 7.