JP3462409B2 - Connection structure of metal cabinet - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for connecting components of a metal cabinet for storing documents and other articles to each other.

[0002]

2. Description of the Related Art In a metal cabinet, a rectangular box-shaped cabinet body is formed by a back plate, left and right side plates, a top plate and a bottom plate, and a shelf plate is attached to the inside of the cabinet. The opening on the front surface of the cabinet body has a form in which a door that is left open is not provided, and a form in which a door such as a swing door or a sliding door is attached.

[0003]

However, the conventional cabinet has a disadvantage that the cost is increased because it is manufactured and stocked separately as a cabinet depending on the presence or absence of the front door or the difference in the form of the door. On the other hand, if the front door can be replaced and the door frame with rails for guiding the sliding door and the hinged door can be selectively attached to the cabinet body, the cabinet body can be shared and the cost can be reduced. Great effect is expected above.

In this case, it is simple to construct the door frame by combining the upper and lower horizontal frame members and the left and right vertical frame members into a rectangular frame shape, but these frame members are also detachable. If the frame can be disassembled and reassembled, the space for transportation and storage is reduced, which is convenient, and the frame can be easily and securely assembled, and if necessary, it can be disassembled and reassembled. Structure is desired.

[0005]

Therefore, in the present invention, since the connecting structure of metal cabinets is used as a sliding door type cabinet, upper and lower horizontal frame members having guide rails for guiding sliding doors and left and right horizontal frame members are provided. A door frame in which vertical frame members are combined in a rectangular frame shape is a metal cabinet adapted to be attached to a front opening of a cabinet body, and a metal connection plate for mutually connecting the door frame and the cabinet body. , A flexibility for connecting the vertical and horizontal frame members that constitute the door frame in cooperation with the connecting plate in a right angle L shape with the side faces of one frame member facing the end faces of the other frame member. A synthetic resin-made connecting block, the connecting block includes a lid portion that closes an end opening of the one frame member, and the other frame member that projects from a side surface of the one frame member. Open end An elastic coupling portion to be press-fitted is integrally formed on the connecting plate, the one frame member
Fixed part that is fixed against and extend from this fixed part
The plug inserted into the elastic joint of the connecting block
The insertion part and the cabinet part projecting rearward from the insertion part.
And a connecting portion that is retained by being locked to the main body,
On the elastic coupling part of the
A pair of clamping pieces for clamping from below are provided, and the pair of clamping pieces
The piece is formed to be longer than the insertion portion and has its tip portion
It is possible to expand and contract, and elastically deform this tip part inward.
The inner surface of the other frame member is pressed against the inner surface .

According to this, the vertical and horizontal frame members can be detachably connected without reducing the joint rigidity of the vertical and horizontal frame members. Since the opening of the end of the frame member is closed, the appearance is good and the number of parts is small.

[0007] In particular, the pair of holding pieces are connected to each other at the front side, the insertion portion of the connecting plate to the plane of its inner
It is preferable that the end surfaces of the connecting plates are brought into contact with each other. According to this structure, the connecting portion of the connecting plate with respect to the cabinet body may be projected rearward from the insertion portion as it is, thus avoiding complication of the connecting plate shape. it can.

In addition to this, it is preferable that the sandwiching piece has a double wall structure having a cavity whose side surface is open. According to this, the sandwiching portion is easily bent, and press-fitting resistance is reduced to perform a connecting operation. Can be easy. In addition, the elastic coupling portion of the connecting block is provided with a protrusion that fits into a groove formed in the other frame member, and the tip end of the protrusion is formed to be thicker than the width of the groove. According to this, it is possible to suppress rattling of the elastic coupling portion and obtain a proper slip-out preventing force.

[0009]

DETAILED DESCRIPTION OF THE INVENTION The configuration of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a metal cabinet to which the connection structure according to the present invention is applied. This metal cabinet is used as a sliding door type cabinet, and has a cabinet body 1 having an opening 1a on the front surface.
And a door frame 2 having a guide rail for guiding a sliding door or a glass door mounted on the front surface of the cabinet body 1.

Metal connecting plates 3 are fixed to the door frame 2 at a total of four positions on the upper, lower, left and right ends. The tip of the connecting plate 3 is in front of the top plate 8 and the bottom plate 9 of the cabinet body 1. The door frame 2 is attached to the cabinet body 1 by inserting it into the guide groove hole 13 formed at the edge and engaging with the connection receiving tool 14 provided at the back. The door frame 2
Instead, a pair of left and right hinged doors provided with connecting plates of a desired shape on the top and bottom can be attached to the cabinet body 1 to be used as a hinged door type cabinet.

The door frame 2 is formed by combining the upper and lower horizontal frame members 4 and 5 and the left and right vertical frame members 6 and 7 into a rectangular frame shape. The vertical and horizontal frame members 4 to 7 are formed into a desired constant cross-sectional shape by, for example, extrusion molding of an aluminum alloy material, and the horizontal frame members 4 and 5 are formed on the upper and lower end side surfaces of the vertical frame members 6 and 7. Are connected to each other in a right-angled L-shape with their end faces facing each other.

As shown in detail in FIG. 2, the upper and lower horizontal frame members 4 and 5 have a groove-shaped cross-sectional shape with an open rear surface, and the upper and lower edges of the open portions 23 and 24 are L-shaped. Cross-section lips 25 and 26 are formed, and rear portions thereof have protruding portions 27 and 28 that overlap the inner surfaces of the top plate 8 and the bottom plate 9, respectively. Guide rails 21 and 22 are formed on the inner surfaces of the horizontal frame members 4 and 5 that face each other. On the other hand, the vertical frame members 6 and 7 are formed in a substantially rectangular closed cross-sectional shape, and the overlapping portion 29 with the inner surface of the side plates 10 and 11 is formed to project rearward. Although only the right vertical frame member 7 is shown in FIG. 2, the left vertical frame member 6 appears symmetrically with this.

Connection blocks 33 are provided at the upper and lower ends of the vertical frame member 7 so as to correspond to the connection plates 3, respectively. In this connecting block 33, a lid portion 35 that closes the end opening of the vertical frame member 7, and an elastic coupling portion that protrudes from the side surface of the vertical frame member 7 and is press-fitted and fixed in the end opening of the horizontal frame members 4 and 5. 34 and 34 are integrally formed of a highly flexible synthetic resin material.
On the other hand, the connecting plate 3 is formed by molding a metal plate material into a predetermined shape, and is fixed to the inner surface of the vertical frame member 7.
0, the insertion portion 31 extending from the fixing portion 30 and penetrating the side wall of the vertical frame member 7 and inserted into the elastic coupling portion 34 of the connection block 33, and the rear portion protruding from the insertion portion 31. The cabinet 32 is provided with a connecting portion 32 that is locked and held by the connecting receiving member 14 provided in the cabinet body 1.

The elastic coupling portion 34 of the connecting block 33 has a
As shown in FIG. 3, holding pieces 37 and 38 for holding the insertion portion 31 of the connecting plate 3 from above and below are provided, and the upper and lower holding pieces 37 and 38 are hollow double walls having cavities whose side surfaces are open. It has a structure.

The sandwiching pieces 37, 38 are formed to be longer than the inserting portion 31 of the connecting plate 3 sandwiched by the sandwiching pieces 37, 38, and the tip end portion which is not in contact with the inserting portion 31 can be expanded and contracted. In addition, mountain-shaped swelling portions 39 are formed at the tip end portion on the upper surface of the upper sandwiching piece 37 and the lower surface of the lower sandwiching piece 38, respectively, and the sandwiching piece 37 when fitted into the horizontal frame member 5. The tip portion of 38 is elastically deformed inward, and the restoring force of the elastic deformation causes the nipping piece 37.3 on the inner surface of the lateral frame member 4/5.
8 is pressed. At this time, the outer end portions of the holding pieces 37 and 38 are bent in an arc shape so that the fitting operation into the horizontal frame member 5 can be performed smoothly.

The walls 37a and 37b of the upper sandwiching piece 37 and the walls 38a and 38b of the lower sandwiching piece 38 are connected to each other at a portion near the base end into which the inserting portion 31 of the connecting plate 3 is inserted, and inside thereof. The end surface of the insertion portion 31 comes into contact with the surface (see FIG. 5). In this portion, only one side surface of the cavity is open, while in the portion near the tip, both sides of the cavity are open. 3 shows the lower connecting block 33 and the connecting plate 3 mounted on the lower end of the vertical frame member 7, and the upper connecting block 33 and the connecting plate 3 appear vertically symmetrical to this.

A protrusion 40 is formed on each of the upper and lower holding pieces 37, 38 so as to project laterally from the outer walls 37a, 38a. This ridge 40 is a holding piece 3
7 and 38 are inserted into the groove 41 formed by the lip 26 of the horizontal frame member 5 when the horizontal frame member 5 is inserted into the end opening of the horizontal frame member 5. Further, a widened portion 40a having a thickness larger than the width dimension of the groove 41 is formed in a manner continuous with the bulging portion 39 on the lower surface (see FIG. 4).
The tip end side of the widened portion 40a is formed in a taper shape by retreating from the tip ends of the sandwiching pieces 37 and 38, which facilitates the insertion operation and provides an appropriate slip-out prevention force by the restoring force of elastic deformation. can get.

A lid plate 4 is attached to the lid portion 35 of the connecting block 33.
A fitting portion 44 having a U-shaped cross section is provided inside the vertical frame member 7 along the inner peripheral surface of the vertical frame member 7. A locking piece 45 is inserted into the fitting portion 44 so as to sandwich the connecting plate 3.
Is provided, whereby the lid portion 35 is restrained by the connecting plate 3, and the lid portion 35 is prevented from being bent at the time of assembling, so that smooth assembling can be performed. Fitting part 4 of lid 35
4 is connected to the lower sandwiching piece 38 of the elastic joint portion 34, whereby the lid portion 35 and the elastic joint portion 34 are integrated.

A screw hole 4 is formed in the fixing portion 30 of the connecting plate 3.
7 is screwed, and a mounting screw 49 inserted into a screw insertion hole 48 formed in the vertical frame member 7 is screwed into the vertical frame member 7 so that the connecting plate 3 is screwed at two points above and below, and the connecting plate 3 is connected to the vertical frame member. Fixed to 7. The fixing portion 30 is positioned by a widening portion 30a on the front end side which is formed to have a size substantially equal to the inner size of the vertical frame member 7 so that the screw 49 can be easily screwed. Since the screw mounting surface of the vertical frame member 7 is covered with the side plate 11 of the cabinet body 1 in the assembled state, the screw 49 is not exposed and looks good (see FIG. 5).

A rectangular notch 50 having a predetermined depth is formed at the end of the vertical frame member 7, whereby the connecting plate 3 is inserted into the connecting block 33 and then the fixing portion 30 of the connecting plate 3 is formed. When the lid portion 35 of the connecting block 33 is fitted into the end opening of the vertical frame member 7, the vertical frame member 7 is fitted without interfering with each other so that the end surface of the vertical frame member 7 comes into close contact with the inner surface of the lid plate 43. A rectangular recess 51 is formed in a portion of the connecting plate 3 on the fixed portion 30 side of the insertion portion 31, and the recess 51 fits into an edge portion of the cutout 50 of the vertical frame member 7 ( (See FIG. 5).

The connecting portion 32 of the connecting plate 3 has an inserting portion 31.
The connection receiving member 1 that extends from the opening portion 24 of the horizontal frame member 5 in the assembled state, is inserted into the guide groove hole 13 of the bottom plate 9 of the cabinet body 1 and is provided at the back of the guide groove hole 13.
4 is locked. A hole 53 is formed in the insertion portion 52 on the distal end side of the engaging portion 32, and a locking projection provided on the coupling receiving tool 14 is engaged with the insertion portion 52 to prevent the engagement portion 32 from coming off. An insertion portion 54 that is wider than the insertion portion 52 is provided on the base end side of the insertion portion 52 so as to correspond to the guide groove hole 13 (see FIG. 5).

As described above, if the connecting block 33 and the connecting plate 3 are attached to the vertical frame member 7 with the screws 49 in advance, the connecting block 3 protruding to the end side surface of the vertical frame member 7.
By simply pushing the elastic coupling portion 34 of 3 into the end opening of the horizontal frame member 5, both frame members 5 and 7 are assembled in a right angle L shape, and the door frame 2 can be easily assembled, and finally Since the connecting plate 3 is fixed to the cabinet body 1 to prevent the elastic coupling portion 34 from coming out, the frame members 5 and 7 are not separated from each other in the assembled state. If the door frame 2 is removed from the cabinet body 1, the vertical and horizontal frame members 5
7 can be easily separated, and can be easily and surely assembled and disassembled without using a tool.

[Brief description of drawings]

FIG. 1 is a perspective view showing a metal cabinet to which a connection structure according to the present invention is applied.

FIG. 2 is a perspective view showing a state in which vertical and horizontal frame members forming a door frame are separated.

FIG. 3 is an exploded perspective view of a connection structure according to the present invention.

FIG. 4 is a side view of a connecting block.

FIG. 5 is a cross-sectional view showing an assembled state of the door frame.

[Explanation of symbols] 1 Cabinet body, 1a opening 2 door frames 3 connection plate 4.5 Horizontal frame material 6.7 Vertical frame material 8 Top plate 9 Bottom plate 10/11 side plate 13 Guide slot 14 Connection receiver 21 ・ 22 Guide rail 23.24 open section 25/26 Lip 27 ・ 28 ・ 29 Overlap 30 Fixed part 31 Insert 32 connection 33 Connection block 34 Elastic connection 35 Lid 37 ・ 38 Clip 39 bulge 40 ridges 43 lid plate 44 Fitting part 45 Locking piece 47 screw holes 48 screw insertion hole 49 screws 50 cutouts 51 recess 52/54 insertion part 53 holes

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47B 47/02 E05D 15/06 E06B 1/00

Claims (4)

(57) [Claims] 1. A front opening of a cabinet body, comprising a door frame in which upper and lower horizontal frame members and a left and right vertical frame members each having a guide rail for guiding the sliding door are combined in a rectangular frame shape for use as a sliding door type cabinet. In a metal cabinet adapted to be attached to a section, a metal connecting plate that connects the door frame and the cabinet body to each other, and the vertical and horizontal horizontal plates that cooperate with the connecting plate to form the door frame. A connecting block made of a synthetic resin having high flexibility, which connects the frame member in a right-angled L-shape with the end faces of the other frame member facing the side faces of one frame member, and the connecting block includes A lid portion that closes an end opening of the one frame material, and an elastic coupling portion that protrudes from a side surface of the one frame material and is press-fitted and fixed to the end opening of the other frame material are integrally formed, The connection plate is It is fixed with respect to the rectangular frame member of
Fixed part and the connecting block extending from the fixed part
Insertion part to be inserted inside the elastic coupling part of
Protruding from the rear part and retained by the cabinet body
The connecting plate is connected to the elastic connecting portion of the connecting block.
A pair of clamping pieces for clamping the insertion part of from above and below are provided,
The pair of sandwiching pieces are formed to be longer than the insertion portion.
The tip part of the can be expanded and contracted, and this tip part is
So that it is pressed against the inner surface of the other frame material.
A metal cabinet connection structure that is characterized by Wherein said pair of holding pieces are connected to each other at the front side, of the insertion portion of the connecting plate to the plane of its inner
The connection structure for a metal cabinet according to claim 1, wherein the end faces are in contact with each other. 3. The connecting structure for a metal cabinet according to claim 1, wherein the sandwiching piece has a double wall structure having a cavity whose side surface is open. 4. The elastic coupling portion of the connection block includes:
4. A ridge to be fitted into a groove formed in the other frame member is provided, and a tip end portion of the ridge is formed to be thicker than the width of the groove. The connection structure of the metal cabinet according to any one of 1.