JP2555067Y2 - Sliding door door - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention relates to a sliding door for a sliding door,
More specifically, the present invention relates to a sliding door door car in which a rail does not directly contact a surface plate or the like of a sliding door.

[0002]

2. Description of the Related Art In a conventional door sliding door, a lower end portion of a roller rotatably mounted on a main body cover is projected below the main body cover, and a guide to a rail is formed by an annular groove in a central portion of the outer periphery of the roller. And the annular groove is engaged with the rail. Alternatively, a synthetic resin roller having a flat outer periphery is axially attached to a main body made of a metal plate so that its lower end projects downward from the main body, and the main body is screwed to a lower reinforcing portion of the sliding door, and the guide with the rail is provided. In most cases, the lower edge or a part of the reinforcing portion of the sliding door is brought into sliding contact with the front and rear edges of the rail.

However, in the former, there is a problem that the sliding door is easily detached from the rail because the engagement between the rail and the roller is shallow, and in the latter,
Since the sliding door surface plate and part of the reinforcement directly contact the rail, frictional resistance is large and smooth opening / closing cannot be performed.In addition, the combination of a metal sliding door and a synthetic resin rail damages the rail. there were.

[0004]

The problem to be solved by the present invention in view of the above situation is that the lower part of the front and back sides of the synthetic resin body cover is set below the lower end of the roller,
It is an object of the present invention to provide a sliding door sliding door capable of slidingly guiding both sides of a rail below a main body cover without any part of the sliding door contacting the rail.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a body cover to be attached to the back of a front plate of a sliding door.
A door wheel rotatably mounted with a roller inside the
The body cover is made of synthetic resin and the inside is opened
Hollow form, together form a sliding contact piece front and back side lower and extended downward from the lower end of the roller, to form a saving unit for releasing the rail which Utate支roller with notches both side lower end, further Notched grooves continuous from the center to the bottom on both sides
And the upper end of the notch groove is a semi-arc-shaped sliding surface.
And the inner surface also serves as reinforcement along the upper edge of the sliding surface.
A protruding edge is provided, and the roller slides at the center on both sides.
A protrusion having a diameter slightly smaller than the width of the notch groove to make sliding contact with the surface
A protruding shaft is provided, and the protruding edge is set around the protruding shaft.
The sliding door for a sliding door was formed by forming an annular concave portion .

[0006] In addition, both sides of the body cover
At the upper part of the evacuation section, it is inclined and protrudes upward and outward at the tip.
An engaging piece having an engaging claw and having elasticity is integrally formed.
Of the reinforcing member fixed to the back of the lower end of the front plate of the sliding door.
At the bottom of the U-shaped beam, attach the holding piece to the side of the beam.
Cut and raise it so that it is flush with the surface and insert the main unit cover
A notch part, and the engaging claw is formed at both notch ends of the bottom surface.
A locking edge to engage was provided.

[0007] Further, the door roller is separated from the surface plate of the sliding door.
Between the body cover and the face plate to be mounted in the rear position
The spacer to be interposed is a plate-shaped body having a predetermined thickness
A connecting pin protruding from one side of the connecting pin.
Into the engaging hole formed in the body cover
Is also preferred.

[0008]

In the sliding door door of the present invention having the above-mentioned contents, the lower portion of the front and back sides of the main body cover is extended downward from the lower end of the roller rotatably mounted therein to form a sliding contact piece. When the sliding door to which the door roller is mounted is mounted on a rail such as a cabinet, the sliding pieces slide and guide on both sides of the rail, so that the surface plate and the lower reinforcing portion of the sliding door can directly contact the rail. There is no. The retracting portions provided at the lower ends on both sides of the main body cover naturally allow the rollers to be rolled on the rails without contacting the rails. And on the body cover, front and back
Form a notched groove continuous from the center to the lower end on both sides and
The upper end of the notch groove is a semi-circular sliding surface,
A projecting edge that also serves as reinforcement along the upper edge of the sliding surface,
Rollers should be centered on both sides in order to slide against the sliding surface.
When projecting a protruding shaft with a diameter slightly smaller than the width of the notch groove,
In addition, an annular recess for accommodating the protruding edge is provided around the protruding shaft.
Formed, so that both protruding shafts of the rollers are
Insert from below and just position the protruding edge in the annular recess
The roller can be rotated with respect to the main body cover and it will not come off
It is possible to attach it in a state where it fits.

[0009] According to the second aspect, the door roller is referred to as a surface plate.
Inserting into the inside of the beam from between the holding pieces of the reinforcing member
First, the engaging claws of the engaging pieces on both sides
It can be mounted simply by engaging.

[0010] Further, according to the third aspect, the surface plate and the body cover are provided.
By placing a spacer between the bars,
Can be installed at a rear position away from the sliding door surface plate
And connect the connecting pin protruding from the spacer to the body cover.
The spacer moves because it fits into the engagement hole formed in the
Is regulated.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

[0012] FIGS. 1 to 3 show an exemplary embodiment, mounting the door roller A according to the present invention the sliding door B, and is shown mounted it to the rail C of the cabinet.

The door roller A comprises a synthetic resin main body cover 1 which can be attached to the lower end of the sliding door B, and a roller 2 which is rotatably mounted inside the main body cover. A rail C that extends downward from the lower end and forms tapered sliding contact pieces 3 and 3 whose inner surfaces are slightly opened downward, and that cuts off the lower ends of both sides of the main body cover 1 and supports the rail C that supports the roller 2. The escape portions 4, 4 for escape are formed. In this embodiment, the roller 2 is also made of synthetic resin and is rotatably mounted on the main body cover 1 only by fitting.

Further, the body cover 1 of the door roller A is flatly formed with a front view substantially square, inclined protrudes the tip outwards towards the upper side on the upper portion of the retracting portions 4 a both sides The engaging pieces 6 and 6 having the engaging claws 5 and having elasticity are integrally formed.

The sliding door B is made of metal and has a reinforcing member 8 fixed to the lower surface of the lower end of the front plate 7 and a reinforcing edge 9 formed by bending both sides and an upper edge inward. .
Here, the reinforcing member 8 is vertically fixed to the surface plate 7.
0 and 11 are provided, and a beam portion 12 having a U-shaped cross section is formed inward in the middle thereof. The holding piece 14 is flush with the side surface 15 of the beam portion 12, and both cutout ends of the bottom surface 13 where the holding piece 14 is cut and raised are formed as locking edges 16, 16. Actually, the locking edge 16 is set slightly to the side of the holding piece 14, and a space for inserting the engaging piece 6 is formed between the base of the holding piece 14 and the locking edge 16. Further, the width of the holding piece 14 is made substantially equal to the width of the main body cover 1 of the door roller A. Further, the width of the notch 17 of the lower fixing piece 11 provided to cut and raise the holding piece 14 is also substantially equal to the width of the main body cover 1.

[0016] and, in mounting the door roller A to the sliding door B is,
The door wheel A is inserted into the inside of the beam portion 12 from between the surface plate 7 and the holding pieces 14 of the reinforcing member 8, and the engagement pieces 6 on both sides are inserted.
The engaging pawl 5 is engaged with the upper surface of the locking edge 16 while the engaging pawl 6 is slightly forcibly narrowed. Engagement claw 5 narrowed
Is engaged with the locking edge 16 in the same manner. In this state, the upper surface of the main body cover 1 contacts the inner surface of the upper surface 18 of the beam portion 12 to restrict upward movement, and downward movement is caused by the engagement relationship of the engagement edge 16 of the engagement claw 5. As a result, the engaging pieces 6 and 6 on both sides are locked by the two locking edges 16 and 16.
And the body cover 1 is fitted in the notch 17 of the lower fixing pieces 11, 11. As described above, since the upper portion of the main body cover 1 of the door roller A is fitted into the beam portion 12 of the reinforcing member 8, the mounting strength is improved. Further, when removing the door roller A, the engaging claws 5 are easily disengaged from the locking edges 16 by pressing and shrinking the engaging pieces 6, 6 exposed below the bottom surface 13 of the beam portion 12 from the outside. It can be pulled out of the part 12.

The rail C is formed of a synthetic resin, is provided at the lower part of the stile of the cabinet 19, and has two protruding ridges 20 and 20 on the front and rear sides.
21 are provided. The leading end width of the ridge 20 is substantially equal to the width of the roller 2, and the sliding contact pieces 3, 3
Is set slightly wider than this.

When the door roller A is attached to the sliding door B, the rail C is located on the inner surface of the sliding contact piece 3 of the main body cover 1.
The thickness is set so that the height position of the tip of the ridge 20 protrudes from the inner surface of the lower fixing piece 11 of the reinforcing member 8. By doing so, the surface plate 7 of the sliding door B and the lower fixing piece 11
No portion of the rails C directly contacts the ridges 20 of the rail C, and only the sliding contact pieces 3 and 3 of the main body cover 1 make contact with the ridges 20, so that smooth opening and closing guide can be performed.

[0019] Next, a more specific embodiment of the door rollers A. 4 to 7 are shown the exemplary embodiments. Here, the same components as those described above are denoted by the same reference numerals, and description thereof is omitted . Main body cover 1, together with the internal hollow formed to open downward, but forms a sliding piece 3,3 the same way on the front and rear side lower, sliding contact piece 3,3
Of the sliding door B
When it is mounted on the surface plate, the surface plate 7 and the holding piece 14 are pressed against each other. Also, the four sides of the front and back sides of the body cover 1
Spacers to be described later are attached to the body cover 1
Are provided.

[0020] This example will be described in more detail. As shown in FIGS. 4 and 5, the body cover 1 has a hollow interior, a lower opening, and cutout grooves 30 extending continuously from the center to the lower end on both front and back sides.
The upper end of the notch groove 30 has a semi-circular sliding surface 31,
A protruding edge 32 which also serves as reinforcement is provided on the inner surface along the upper edge of the sliding surface 31. Further, the roller 2 has a protruding shaft 3 having a diameter slightly smaller than the width of the
3 and 33, and an annular concave portion 34 for accommodating the protruding edge 32 is formed around the protruding shaft 33. Further, inclined portions 35, 35 are formed at both ends of the protruding edge 32, and are connected to the inner surfaces on both sides of the cutout groove 30.

When the roller 2 is inserted into the main body cover 1 from below, the protruding shafts 33 of the roller 2 are positioned and guided in the cutout grooves 30, and the upper portion of the outer peripheral portion 36 of the roller 2 is moved upward. At the same time as the sloping portion 35 is slid and the front and back surfaces of the main body cover 1 are spread and pushed over the protruding edge 32, the front and back surfaces of the main body cover 1 are elastically restored to the original state, as shown in FIGS. As such, the ridge 32 is located within the annular recess 34 of the roller 2. In this state, the roller 2 is fitted and stopped, and the shafts 26, 26 abut against the arc-shaped sliding surfaces 31, 31. Becomes possible. As described above, the roller 2 can be mounted on the main body cover 1 simply by press-fitting the roller 2 by using the elasticity of the front and back surfaces of the main body cover 1. Since the guide 26 is guided by the cutout groove 30 of the main body cover 1, the work is easy.

As shown in FIG. 3, the right sliding door B (FIG.
, The left sliding door B) is disposed on the front side of the left sliding door because the locking device is attached thereto, so that the position of the door roller A attached to the lower end portion is set more rearward than in the case of the left sliding door. In this case, the thickness of the reinforcing member 8 is increased, and the spacer 37 is interposed between the door roller A and the surface plate 7. As shown in FIGS. 8 (a), 8 (b) and 8 (c), the spacer 37 is an engagement hole formed on one side surface of the plate-shaped main body 38 having a predetermined thickness and provided in the main body cover 1 of the door roller A. The connecting pins 39 to be fitted in the engagement holes 29 at positions corresponding to 29,.
Are integrally protruded. In order to mount the spacer 37, first, the connecting pins 39,... Are fitted into the engaging holes 29,. I will install it.

[0023]

[Effect of the invention] The sliding door door of the present invention made as described above,
A door wheel attached to the back surface of a front plate of a sliding door, wherein lower portions of front and back sides of a synthetic resin body cover in which a roller is rotatably mounted extend below the lower end of the roller to form a sliding contact piece. Therefore, when the sliding door to which the door door is attached is mounted on a rail such as a cabinet, the sliding pieces slide and guide on both sides of the rail, so that the surface plate and the lower reinforcing portion of the sliding door directly contact the rail. The sliding door can be smoothly opened and closed without any trouble, and there is no possibility of damaging the rail. In addition, since the vertical dimension of the sliding contact piece protruding from the lower end of the roller can be appropriately set, the sliding door can be prevented from coming off the rail. In addition, since the retracting portions are provided at the lower ends on both sides of the main body cover, the roller can naturally be rolled on the rail without the main body cover coming into contact with the rail. And the body cover
The notch on the front and back sides has a continuous notch from the center to the bottom.
And the upper end of the notch groove is a semi-arc-shaped sliding surface.
And the inner surface also serves as reinforcement along the upper edge of the sliding surface.
A protruding edge is provided, and the roller has the sliding surface at the center on both sides.
A protruding shaft having a diameter slightly smaller than the width of the notch groove so as to slide on
And the protrusion is housed around the protrusion.
An annular concave part that forms
Insert into the notch groove of the cover from below,
Rotate the roller with respect to the body cover just by positioning
It can be mounted in a possible and retaining state.

Further , according to the second aspect, the door wheel is formed as a surface plate.
Inserting into the inside of the beam from between the holding pieces of the reinforcing member
First, the engaging claws of the engaging pieces on both sides
It can be simply by mounting to engagement.

[0025] Further, according to the third aspect, the surface plate and the body cover are provided.
By placing a spacer between the bars,
Can be installed at a rear position away from the sliding door surface plate.
Connection pins protruding from the spacers on the body cover
It fits into the formed engagement hole, so the movement of the spacer is restricted.
Can be controlled.

[Brief description of the drawings]

FIG. 1 shows a typical embodiment of a sliding door car of the present invention,
(A) is a sectional view of a main part in a state where a door roller is mounted on a sliding door,
(B) is a front view of a main part of the sliding door viewed from the back.

FIG. 2 is a perspective view of a main part in a state where a door roller is mounted on a sliding door.

FIG. 3 is a longitudinal sectional side view of a main part in a state where a sliding door is mounted on a cabinet.

FIG. 4 is a front view showing a main body cover of the door roller in a partial cross section.

FIG. 5 is a longitudinal sectional view of the same.

FIG. 6 is a longitudinal sectional side view showing an assembled state of a door roller.

FIG. 7 is a front view of the door car.

FIG. 8 shows a spacer, (a) is a front view, (b) is
Right side view, (c) is a rear view

[Explanation of symbols]

 Reference Signs List A Door car B Sliding door C rail 1 Main body cover 2 Roller 3 Sliding contact piece 4 Evacuation section 5 Engagement claw 6 Engagement piece 7 Surface plate 8 Reinforcement member 9 Reinforcement edge 10 Upper fixing piece 11 Lower fixing piece 12 Beam section 13 Bottom 14 Holding Piece 15 side surface 16 engagement edge 17 notch 18 upper surface 19 cabinet 20 ridge 21 guide 29 engagement hole 30 notch groove 31 sliding surface 32 projection edge 33 projection shaft 34 annular concave portion 35 inclined portion 36 outer peripheral portion 37 spacer 38 plate shape Body 39 Connecting pin

Claims (3)

(57) [Scope of request for utility model registration] 1. A body cover attached to the back of a front plate of a sliding door.
A door roller in which rollers are rotatably mounted inside the body , wherein the main body cover is made of synthetic resin and is opened at a lower portion to be inward.
Part a hollow formed, together form a front and rear side lower portion and extended downward from the lower end of the roller sliding contact piece, forming a retracting section for releasing the rail which Utate支roller with notches both sides lower end , And notches continuous from the center to the bottom on both sides
A groove is formed and the upper end of the notch groove is a semi-arc-shaped sliding surface.
And the inner surface also serves as reinforcement along the upper edge of the sliding surface.
A protruding edge is provided, and the roller slides at the center on both sides.
A protrusion having a diameter slightly smaller than the width of the notch groove to make sliding contact with the surface
A protruding shaft is provided, and the protruding edge is set around the protruding shaft.
A sliding door for a sliding door, wherein an annular concave portion is formed . 2. The apparatus according to claim 1, wherein the side faces of the main body cover and
It projects upward at the upper part of the escape part and engages outward at the tip
An engaging piece having claws and elasticity is integrally formed,
The cross section of the reinforcing member fixed to the back of the lower end of the front plate of the sliding door
The holding piece is attached to the bottom of the
Cut and raise so that they are flush with each other and insert the body cover
A notch is formed, and the engaging claw engages both notched ends of the bottom surface.
The sliding door door according to claim 1, wherein the sliding edge serves as a locking edge. 3. The rear side of the door roller separated from a surface plate of a sliding door.
Between the body cover and the face plate for mounting
The spacer to be located is one of a plate-shaped main body having a predetermined thickness.
A connecting pin protrudes from the side surface.
It is fitted and fitted in the engagement hole formed in the main body cover
The sliding door car according to claim 1 or 2.