JPH0443565Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a door roller and key body mechanism of a sliding door used in a show case or a storage.

(Prior Art and its Problems) Conventionally, sliding doors used in show cases and the like have generally been structured to be locked to prevent theft. For example, the door wheel and key body attachment mechanism of a sliding door that closes an opening for taking out articles such as a case with two inner and outer sliding doors is as shown in FIG. That is, in FIG. 5, 1 and 2 are a pair of inner and outer sliding doors each formed on a rectangular frame, and the upper edge of each upper frame has an article retrieval opening 3 (not shown).
It is fitted into the upper recess of the
Door wheels 4 and 5 attached to the left and right parts of the bottom recesses of each of the lower frames 1a and 2a are engaged with two inner and outer rails 6 and 7 laid along the bottom surface of the opening 3. 8
is a key body, which is fixed to the outer surface of the lower frame 2a by screws from the inside in the vicinity where the sliding doors 1 and 2 overlap each other when closed, and the cylinder portion 8a passes through the lower part 2a. The cylinder portion 8a has an engaging rod 8b built therein so as to be retractable, and by inserting a key (not shown) into a keyhole (not shown) opened on the outer surface of the key body 8 and rotating it, the engaging rod 8b can be moved into the cylinder. Projecting inwardly from the inner opening of the portion 8a and outwardly from the side frame 1b of the inner sliding door 1 in the closed state,
Mutual movement of both sliding doors 1 and 2 is prevented.

Therefore, due to the presence of the key body 8, at least the door wheel 5 of the outer sliding door 2 is installed closer to the center than the key body 8, and the distance between the left and right door wheels 5 of the sliding door 2 is narrowed, resulting in poor stability. Therefore, it rattles when opening and closing.

(Means for Solving Problems) The door roller and key body attachment mechanism of a sliding door according to the present invention consists of a mechanism for attaching each door roller to an inverted U-shaped receiver, a roller interposed between the vertical plates of the receiver, and a center of the roller. and a pin loosely inserted into a through hole drilled in the vertical plate part, and the left and right door wheels are assembled into the left and right ends of a recess formed over the entire length of the bottom surface of the lower frame of the sliding door, and one A key body is mounted on the outer surface of the lower frame at a side closer to the center than the door wheel, and a cylinder portion of the key body crosses and penetrates the recess to prevent movement of the one door wheel. It is characterized by Therefore, the distance between the left and right door rollers is widened, improving stability, and since the cylinder part prevents the door roller from moving, the door roller can be securely fixed simply by fitting it into the recess, and it does not require the use of screws, etc. It also prevents rattling due to loosening.

(Example) Hereinafter, an example of the present invention shown in FIGS. 1 to 4 will be described in detail. Reference numeral 10 denotes a show case in which two inner and outer sliding doors 11 and 12 are incorporated in an opening 10a for taking out articles. The sliding doors 11 and 12 have left and right frames 11a and 11b; 12a and 12b, and an upper frame 11, respectively.
c, 12c and the lower frames 11d, 12d are combined into a rectangular shape to form a frame, and plate glasses 11e, 12e are fitted into the frame-shaped spaces. Then, the upper edges of each upper frame 11c, 12c are fitted into the upper surface 10a ₁ recess of the opening 10a, and each lower frame 11d, 12
d Door wheel 1 inserted on the left and right sides of the bottom surface as described later
The rollers 13a and 14a of 3 and 14 are connected to the opening 10.
It is engaged with two inner and outer rails R laid over the entire length of the lower surface _10a2 of a, so that it can roll freely and cannot come off.

The bottom surfaces of the lower frames 11d and 12d form recesses 11d ₁ and 12d ₁ that span the entire length in the longitudinal left and right directions and are open downward, and grooves 11d are formed on the opposing inner surfaces of the recesses 11d ₁ and 12d ₁ that span the entire length in the longitudinal direction. ₁₁ , 12d ₁₁ . The door wheels 13 and 14 are connected to the roller 1
3a, 14a, inverted U-shaped receivers 13b, 14b,
It consists of three parts: and pins 13c and 14c, and can be disassembled and assembled. That is, roller 13
a and 14a are respectively interposed in the holders 13b and 14b, and assembled by loosely inserting the pins 13c and 14c into the through holes bored between the centers of the rollers 13a and 14a and the vertical plates of the holders 13b and 14b. be. The door wheels 13 and 14 for the two left and right wheels are located in the recess 1.
1d ₁ , 12d ₁ , the recesses 11d ₁ , 12d _{1
The pin 13c ,}
Both protrusions of 14c are fitted into the grooves 11d ₁₁ and 12d ₁₁ , and moved in the left and right direction along the grooves 11d ₁₁ and 12d ₁₁ , so that the receivers 13b and 14b fit into the recess 11.
Left and right side frames 11a and 11b that close the longitudinal opening of d ₁ and 12d ₁ ; arranged at the left and right end positions that abut against the lower portions of 12a and 12b. For the left and right door wheels 13, 13 of the inner sliding door 11 and the right door roller 14 of the outer sliding door 12, cross each recess 11d ₁₁ , 12d 11 from inside each lower frame 11d, 12d in the vicinity of each door roller 13, ₁₄ . By screwing in the threaded stopper pin SP so that the door wheels 13 and 14
It is designed to prevent movement of the left and right direction.

Reference numeral 15 denotes a key body attached to the left side of the lower frame 12d of the outer sliding door 12. The main body block 15a has a keyhole _15a1 in the center of the surface and is attached to the outer surface of the lower frame 12d.
A cylinder portion 15b is formed to protrude inwardly from the center of the inner surface of the main body block 15a and is penetrated through the lower frame 12d so as to cross the recess _12d1 , and a locking rod is built into the cylinder portion 15b so as to be retractable. 15c, the left and right inner surfaces of the main body block 15a are fixed from the inner surface of the recess _12d1 with screws 16, and the cylinder portion 15b abuts against the vertical plate portion of the left door wheel 14b disposed at the left end of the recess _12d1 . , the recess 12d ₁ prevents the door roller 14 from moving in the left and right direction together with the lower part of the left side frame 12a that closes the left opening. 1
7 is a sealing material pasted on the outer surface of the right side frame 11b of the inner sliding door 11 over the entire length in the vertical direction.

When the outer sliding door 12 is moved to the right with respect to the inner sliding door 11 and closed, the inner surface of the left side frame 12a overlaps with the right side frame 11b of the inner sliding door 11 in a sealed manner through the sealing material 17. Then put the key K in the keyhole 15a ₁
When inserted into the cylinder portion and rotated in one direction, the locking rod 15c protrudes from the tip opening of the cylinder portion 15b, and the protruding end of the locking rod 15c is inserted into the right side frame 1.
1b, the sliding doors 11 and 12 are prevented from moving laterally, and are in a locked state (the state shown in FIG. 3).

In the above-mentioned embodiment, there are two sliding doors 11 and 12 inside and outside.
However, it can also be implemented in the same way as a single sliding door with a door pocket. Further, the cylinder portion 15b
By carving a narrow groove on the circumferential surface of the door wheel 12 and fitting the side edge of the vertical plate of the receiving plate 14b of the door wheel 12 into this narrow groove, the door wheel 12 can be fixed even more firmly.

(Effects of the invention) As explained above, when using the sliding door door roller and key body mounting mechanism of the present invention, the left and right door wheels of the sliding door can be extended to the full width of the sliding door, improving the stability of the sliding door. Sliding doors open and close smoothly,
Since the cylinder part of the key body placed on the side near the center of one door roller prevents the movement of this one door roller, there is no need to use screws etc. to fix the door roller, and therefore the frequency of opening and closing is reduced. This simple mechanism improves the functionality of sliding doors, such as eliminating the fear of rattling due to loosening of the door roller mounting screws on tall sliding doors, or of the rollers of the door roller coming off the rails due to the mounting screws coming off. It has a great effect.

[Brief explanation of the drawing]

Figures 1 to 4 show one embodiment of the present invention, in which Figure 1 is a perspective view of a show case adopting the present invention, Figure 2 is an enlarged front view of a portion of Figure 1, and Figure 3 is a partially enlarged front view of Figure 1. FIG. 4 is a bottom view in the direction of the arrows in the figure, and FIG. FIG. 5 is a bottom view similar to FIG. 3 showing a conventional example. In the figure, 10 is a show case, 11 is an inner sliding door,
12 is an outer sliding door, 12d is a lower frame, _12d1 is a recess, 14 is a door wheel, 15 is a key body, and 15b is a cylinder portion.

Claims (1)

[Scope of utility model registration request] A frame is formed by combining a pair of left and right side frames, an upper frame, and a lower frame into a rectangular shape, and a pair of door wheels is built into the left and right parts of the recess formed across the entire length of the bottom of the lower frame. In the sliding door, the door roller is formed of an inverted U-shaped receiver, a roller interposed between the vertical plate parts of the receiver, and a pin loosely inserted into a through hole bored in the center of the roller and in the vertical plate part. The door wheel is assembled into the left and right ends of the recess, and the key body is mounted on the outer surface of the lower frame at a position laterally toward the center of one of the door wheels, and the cylinder portion of the key body is attached to the outer surface of the lower frame. 1. A door roller and key body attachment mechanism for a sliding door, characterized in that the sliding door door roller and key main body mounting mechanism is configured to penetrate across the area to prevent movement of the one door roller.