JPH024217Y2 - - Google Patents

Description

[Detailed explanation of the invention] The present invention consists of a main body, upper, lower, left and right frames that are fitted to each edge of the main body, and a slide piece that is fixed to the lower frame with at least two fasteners and slides on the rail. The purpose of this door is to connect the bottom frame to the left and right frames, and to attach the slide piece to the bottom frame with two fasteners. The purpose of this invention is to speed up the door assembly work by simultaneously performing the door assembly using a tool, and to easily replace the slide piece by removing a single stopper.

In general, a left-right sliding door disposed at an opening for storing and taking out products in a show case has a slide piece, which has approximately the same length as the lower frame, fixed to the lower frame. This slide piece is made of resin such as Diyuracon or nylon that does not produce frictional noise when sliding, so if used for a long time, it will wear out due to friction and must be replaced. This has the advantage of preventing dust from leaking out of the refrigerator and dust from outside entering the refrigerator.

The door with such a slide piece was made in 1977.
This is shown in Publication No. 18416 and Publication Utility Model Publication No. 49-22870, but the door described in the former publication has multiple holes formed in the slide piece, and a stopper passing through these holes directly connects the slide piece to the lower frame. Since the slide piece must be installed after the door is assembled, the number of parts is large, and when replacing the slide piece, all the fasteners must be removed, making it difficult to assemble the door and replace the slide piece. In addition, the door described in the latter publication has a dovetail groove in the lower frame, and the slide piece is fitted or screwed into this dovetail groove. Since both left and right sides of the door are covered by the lower ends of the left and right frames, one of the left and right frames must be removed when replacing the slide piece, resulting in the disadvantage that the door must be disassembled.

The present invention has been developed in view of these drawbacks, and embodiments thereof will be described below with reference to the drawings.

Reference numeral 1 denotes a low-temperature case that cools the inside of the refrigerator using a refrigeration system, and an opening formed in the front for storing and taking out products has doors 2 that can be slid in the left and right directions, and rails made of metal or resin that guide each of these doors. 3 are arranged. Both doors have a rectangular main body 4 made of a transparent glass plate, and upper, lower, left, and right frames 5 that are fitted to the upper, lower, left, and right edges of the main body and surround the peripheral edges.
A, 6A, 7A, 8A and the protrusion 3 of the rail
Slide piece 9 guided in sliding contact with A, 3A
It consists of Each frame is formed by extruding aluminum, resin, etc., and has grooves 5B and 6 that are fitted into opposing edges of the main body 4, respectively.
B, 7B, 8B are formed, and both upper and lower frames 5
A, 6A have cutout portions 5C, 5 in which both ends of the groove portions 5B, 6B are cut out, respectively, and the front and back surfaces of the respective frames are made to be on the same surface by butting against both the left and right frames 7A, 8A.
C, 6C, 6C, and holes 5D, 5D, 6D, 6D corresponding to the hollow portions described later at both ends.
is formed. Furthermore, cylindrical reinforcing strips 7C and 8C having hollow portions 7D and 8D corresponding to the respective holes are integrally formed on both the left and right frames 7A and 8A in the outer longitudinal direction of the groove portions 7B and 8B, and either one A handle 7E for opening and closing is integrally formed on the. Furthermore, a dovetail groove 10 is formed in the lower frame in its longitudinal direction, with an opening 10A at a part of the lower surface and openings 10B and 10C at both left and right sides, respectively.

The slide piece is made of a resin that is slightly softer than the rail 3, and its length is equal to that of the holes 6D and 6 of the lower frame 6A.
It has a convex shape with a sliding portion 9A projecting downward and having a concave sliding surface 9B that is slightly shorter than the distance D and slides on the protrusions 3A, 3A of the rail 3. This slide piece is inserted into the dovetail groove 10 from one of the openings 10B and 10C so that the sliding portion 9A protrudes below the opening 10A, and the hole 6 of the lower frame 6A
It is interposed between D and 6D. 11, 12, 13, 1
4 is a fastener such as a screw or a screw that connects each frame 5A, 6A, 7A, 8A to each other, and the hollow part 7D,
The screw parts 11A, 12A, 13A, 14A that are inserted into the reinforcing strips 7C and 8C, and the head 1
1B, 12B, 13B, and 14B, among which the heads 13B and 14B of the stoppers 13 and 14 are round, flat, or pan-shaped with diameters gradually smaller than the width of the opening 10A.

Next, to explain the assembly of the doors 2, 2, first, each frame 5A, 6A, 7A, 8A is fitted to each edge of the main body 4, and the end surfaces of each frame are butted against each other and assembled in a square shape. Openings 1 on both sides of the dovetail groove 10
0B and 10C are exposed to the outside. Next, by means of three fasteners 11, 12, and 13, both ends of the upper frame 5A and the upper ends of both the left and right frames 7A, 8A were interconnected, and one end of the lower frame 6A and the lower end of the left frame 7A were interconnected in sequence. The rear slide piece 9 is inserted into the dovetail groove 10 through the opening 10C, and the left side surface of the slide piece 9 is brought into contact with the head 13B of the stopper 13. Thereafter, the remaining stop 14 interconnects and connects the other end of the lower frame 6A and the lower end of the right frame 8A, and the head 14B of this stop 14 is brought into contact with the right side surface of the slide piece 9 or is pressed against the right side of the slide piece 9. The doors 2, 2 can be assembled by being close to each other.

According to the structure of the doors 2, 2, the movement of the slide piece 9 in the front-rear and up-down directions can be restricted by the dovetail grooves 10, and the movement in the left-right direction can be restricted by the stoppers 13, which are connecting members of the lower frame 6A. 14 heads 1
3B and 14B, the slide piece 9 can be installed without using new parts, and the lower frame 6 can be fixed by one stopper 13.
The connection of one end of the lower frame 6A and the stopping and positioning of the slide piece 9 housed in the dovetail groove 10 can be performed at the same time, and the other end of the lower frame 6A can be connected and the slide piece 9 can be prevented from falling out using the other stopper. This allows the connection of the lower frame 6A and the fixing of the slide piece 9 to be completed at the same time, making it possible to assemble the doors 2, 2 easily and quickly. The slide piece 9 can be replaced by removing one of the slide pieces 14, and this replacement can be performed without removing one of the lower, left, and right frames 6A, 7A, and 8A.

As described above, in the present invention, the heads of both stoppers that connect the lower ends of the left and right frames and both ends of the lower frame are brought into contact with or extremely close to both the left and right sides of the slide piece housed in the dovetail groove. Therefore, the slide piece can be attached at the same time as the door is assembled, and the slide piece can be replaced by removing one stopper without separating the frame.

[Brief explanation of the drawing]

The drawings show an example of the door according to the present invention, and FIG. 1 is a perspective view of a show case equipped with the door according to the present invention, and FIG.
Figure A-A' sectional view, Figure 3 is Figure 2 B-B' sectional view,
Figure 4 is a perspective view of the door, Figure 5 is a bottom view of the door, and Figure 6 is a perspective view of the door.
The figure is an exploded view of the door. 2, 2... Door, 3... Rail, 4... Subject, 5
A, 6A, 7A, 8A...Top, bottom, left, right frames, 9...Slide piece, 9A...Sliding part, 1
0...Dovetail groove, 10A, 10B, 10C...Opening,
13, 14...stop, 13B, 14B...head.

Claims (1)

[Scope of utility model registration request] It consists of a main body, upper, lower, left, and right frames that are fitted to the upper, lower, left, and right edges of the main body, and a slide piece that is fixed to the lower frame with at least two fasteners and slides on the rail. In a door that is installed in a horizontally sliding manner, the lower frame is integrally formed with a dovetail groove that opens on the lower surface and both left and right sides, and a slide piece is stored in this dovetail groove, and two fasteners are used to open both the left and right sides. A door characterized in that the lower end of the frame and both ends of the lower frame are interconnected and connected, and the heads of both stoppers are in contact with or extremely close to both left and right sides of a slide piece.