JPH0522788U - Sliding door roller - Google Patents

Abstract

(57) [Abstract] [Purpose] Regarding a sliding door roller in which the rail does not directly contact the surface plate of the sliding door, set the lower part of the front and back sides of the synthetic resin body cover below the lower end of the roller. It became possible to slide and guide both sides of the rail under the main body cover without touching any part with the rail. [Structure] Door roller attached to the back of the front plate (7) of the sliding door (B)
(A), the lower part of the front and back sides of the main body cover (1) made of synthetic resin in which the roller (2) is rotatably mounted therein is extended below the lower end of the roller, and the sliding contact piece (3 ), The lower end portions on both sides of the main body cover are cut out to form a retreat portion (4) for escaping the rail (C) for supporting the roller.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sliding door roller, and more particularly to a sliding door roller in which a rail does not directly contact a surface plate of the sliding door.

[0002]

[Prior Art]

 In the conventional sliding door roller, the lower end portion of the roller rotatably mounted on the main body cover is projected downward from the main body cover, and the guide with the rail is formed with an annular groove at the center of the outer periphery of the roller. The annular groove was engaged with the rail. Alternatively, a roller made of synthetic resin with a flat outer periphery is attached to the main body made of a metal plate so that the lower end of the roller protrudes downward from the main body, and the main body is screwed to the lower reinforcing part of the sliding door and guided with the rail. In most cases, the lower edge of the surface plate of the sliding door or a part of the reinforcing portion is slidably contacted with the front and rear edges of the rail.

However, in the former case, there is a problem that the sliding door easily comes off the rail because the engagement between the rail and the roller is shallow, and in the latter case, the sliding door surface plate and the reinforcement are reinforced. Since a part of the part directly contacts the rail, frictional resistance is large and smooth opening and closing cannot be performed, and there is a problem that the rail is damaged when the sliding door made of metal and the rail made of synthetic resin are combined.

[0004]

[Problems to be solved by the device]

 In view of the above situation, the present invention is to solve the problem by setting the lower part of the front and back sides of the main body cover made of synthetic resin below the lower end of the roller without contacting any part of the sliding door with the rail. The point is to provide a sliding door roller that can slide and guide both sides of the rail under the body cover.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention is a door roller mounted on the back surface of a front plate of a sliding door, in which the front and back lower parts of a synthetic resin main body cover inside which a roller is rotatably mounted are attached to the roller. The sliding door roller was constructed by extending below the lower end of the main body to form a sliding contact piece, and notching the lower end portions on both sides of the main body cover to form a retracting portion through which the rail that supports the roller escapes.

[0006]

[Action]

 According to the sliding door roller of the present invention having the above-mentioned contents, the lower part 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 attached with is attached to the rail of the cabinet etc., both sliding pieces slide and guide both sides of the rail, so the surface plate of the sliding door and the lower reinforcing part do not come into direct contact with the rail. Of. Also, the retracting parts provided at the lower ends of both sides of the main body cover can naturally support the rollers on the rails without contacting the rails.

[0007]

【Example】

 The present invention will be further described in detail with reference to the embodiments shown in the accompanying drawings.

1 to 3 show a typical embodiment, showing a state in which a door roller A according to the present invention is attached to a sliding door B and is attached to a rail C of a cabinet.

The door roller A comprises a main body cover 1 made of synthetic resin that can be attached to the lower end of the sliding door B, and a roller 2 rotatably mounted inside the main body cover 1. Rails C extending downward from the lower end of the main body cover 1 and forming tapered sliding contact pieces 3 and 3 whose inner surface is slightly open downward, and notching the lower end portions on both sides of the main body cover 1 to support the roller 2 The retreat portions 4 and 4 are formed to allow the escape. In this embodiment, the roller 2 is also made of synthetic resin and is rotatably attached to the main body cover 1 only by fitting.

Further, the main body cover 1 of the door roller A is formed in a flat shape having a substantially quadrangular shape when viewed from the front, and on both sides and above the retracting portions 4 and 4, is inclined and projected upward and outwardly at the tip. 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 back surface of the lower end portion of the surface plate 7, and both sides and upper edges are bent inward to form a reinforcing edge 9. .. Here, the reinforcing member 8 is provided with fixing pieces 10 and 11 to the surface plate 7 at the top and bottom, and a beam portion 12 having a U-shaped cross section is formed inwardly in the middle thereof, and a part of a bottom surface 13 of the beam portion 12 is formed. It is cut and raised to form a holding piece 14. The holding piece 14 is flush with the side surface 15 of the beam portion 12, and both notched 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 1. Further, the width of the notch 17 of the lower fixing piece 11 provided for cutting and raising the holding piece 14 is also made substantially equal to the width of the main body cover 1.

Then, in order to mount the door roller A on the sliding door B, the door roller A is inserted into the beam portion 12 from between the holding piece 14 of the surface plate 7 and the reinforcing member 8, and the engaging pieces 6, 6 on both sides are inserted. The engaging claws 5 are engaged with the upper surface of the engaging edge 16 in a state where the engaging claw 6 is slightly narrowed, or the engaging pieces 6 and 6 automatically move when the engaging claw 5 moves over the engaging edge 16. Narrowed to engage the engaging pawl 5 with the locking edge 16 as well. In this state, the upper surface of the main body cover 1 comes into contact with the inner surface of the upper surface 18 of the beam portion 12 and its upward movement is restricted, and its downward movement is restricted by the engagement relationship of the engaging edge 16 of the engaging claw 5. Further, the lateral movement is restricted by the engaging pieces 6, 6 on both sides elastically abutting on the inner surfaces of both the locking edges 16, 16, and the main body cover 1 by the lower fixing pieces 11, 11. It is regulated by fitting in the notch 17 of the. In this way, since the upper portion of the main body cover 1 of the door roller A is fitted in the beam portion 12 of the reinforcing member 8, the mounting strength is improved. Further, when removing the door roller A, if the engaging pieces 6, 6 exposed below the bottom surface 13 of the beam portion 12 are compressed from the outside, the engaging claw 5 is easily disengaged from the engaging edge 16 and the beam is released. It can be pulled out from inside the part 12.

The rail C is made of synthetic resin and is provided at the lower part of the stile of the cabinet 19. Two rails 20 and 20 are formed on the front and rear sides, and guide rails 21 and 21 are further projected on the outside thereof. is doing. The width of the tip of the ridge 20 is made substantially equal to the width of the roller 2, and the width of the sliding contact pieces 3, 3 of the main body cover 1 is set to be slightly wider than this.

In the state where the door roller A is attached to the sliding door B, the height position of the tip of the ridge 20 of the rail C on the inner surface of the sliding contact piece 3 of the main body cover 1 is below the reinforcing member 8. The thickness is set so as to project from the inner surface of the fixed piece 11. In this way, the surface plate 7 of the sliding door B, the lower fixing piece 11 and the like do not directly contact the ridges 20 of the rail C, and the ridges 20 make contact with the sliding contact pieces 3, 3 of the main body cover 1. Only 3 is available, and smooth opening and closing guidance can be provided.

Next, a more specific example of the door roller A will be described. 4 to 7 show the first embodiment, and FIGS. 8 to 11 show the second embodiment. Here, the same components as those described above are designated by the same reference numerals and the description thereof will be omitted. First, the first embodiment will be described. As shown in FIGS. 4 and 5, the main body cover 1 has a hollow interior, opens downward, and has sliding contact pieces 3, 3 formed on the lower front and back sides in the same manner as described above. The outer surfaces of the pieces 3 and 3 are formed so as to spread slightly downward, and when mounted on the sliding door B, the surface plate 7 and the holding piece 14 are pressed against each other. Further, a circular through hole 22 is formed in the center of one side surface of the main body cover 1, and a fitting hole 23 having a smaller diameter than the through hole 22 is formed in the center of the other side surface facing the main cover 1. Further, a recess 24 is formed upward from the through hole 22, a connecting piece 25 is integrally formed upward from the recess 24, and a shaft portion 26 that can be inserted into the through hole 22 is provided outside the tip of the connecting piece 25. A projecting portion 27 that press fits into the fitting hole 23 is integrally formed at the center of the tip. In addition, the roller 2 is formed in a ring shape having a shaft hole 28 in the center of which the shaft portion 26 can be loosely inserted.

Then, with the roller 2 positioned inside the main body cover 1, as shown in FIG. 6 and FIG. 7, when the connecting piece 25 is bent into the base and is housed in the recess 24. At the same time, after inserting the shaft portion 26 into the through hole 22 and the shaft hole 28 of the roller 2, the protrusion 27 is fitted into the fitting hole 23, and the roller 2 is rotatably mounted. Thus, the roller 2 can be mounted without labor by only bending the connecting piece 25 and the shaft portion 26 integrally formed on the main body cover 1 and fitting them into the fitting holes 23 of the protrusions 27. In addition, engaging holes 29, ... For mounting a spacer, which will be described later, on the main body cover 1 are provided at four positions on one side of the main body cover 1.

Next, a second embodiment will be described. As shown in FIG. 8 and FIG. 9, the main body cover 1 has a hollow inside, is open downward, and is formed with notched grooves 30, 30 continuous from the central portion to the lower end on both front and back sides. .. The upper end of the notch groove 30 is a semicircular arc-shaped sliding surface 31, and an inner surface is provided with a projecting edge 32 which also serves as a reinforcement along the upper edge of the sliding surface 31. Further, the roller 2 has projecting shafts 33, 33 having a diameter slightly smaller than the width of the cutout groove 30 at the center of both sides thereof, and an annular recess for accommodating the projecting edge 32 around the projecting shaft 33. 34 is formed. Furthermore, inclined portions 35, 35 are formed at both ends of the projecting edge 32 and are continuous with the inner surfaces on both sides of the notch groove 30.

Then, when the roller 2 is inserted into the body cover 1 from below, the protruding shafts 33, 33 of the roller 2 are positioned and guided in the notch grooves 30, 30, and the upper portion of the outer peripheral portion 36 of the roller 2 is guided. 10 slides over the slanted portion 35 and pushes over the front and back surfaces of the main body cover 1 while riding over the projecting edge 32, and at the same time, the front and back surfaces of the main body cover 1 are elastically restored to their original state. The ridge 32 is located in the annular recess 34 of the roller 2, as shown in FIG. In this state, the roller 2 is attached so as not to come off, and the shaft portions 26, 26 come into contact with the arcuate sliding surfaces 31, 31 to rotate the shaft portion 26 in sliding contact with the sliding surface 31. It becomes possible to move. In this way, the roller 2 can be attached to the main body cover 1 by using the elasticity of the front and back surfaces of the main body cover 1 and simply by press-fitting the roller 2, and at the time of attachment, the shaft portion of the roller 2 can be attached. Since the 26 is guided by the notch groove 30 of the body cover 1, the work is easy.

Further, as shown in FIG. 3, the right sliding door B (the left sliding door B in FIG. 3) is mounted on the lower end portion because it is arranged on the front side of the left sliding door because the locking device is mounted. The position of the door roller A is set rearward compared to 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. 12 (a), 12 (b) and 12 (c), this spacer 37 is one side surface of a plate-like main body 38 having a predetermined thickness and is provided on the main body cover 1 of the door roller A. Connection pins 39, which are fitted into the engagement holes 29, are integrally projected at positions corresponding to the holes 29 ,. To mount the spacer 37, first, the connecting pins 39, ... Are used to fit into the engaging holes 29, .. It can be attached to.

[0020]

[Effect of the device]

 The sliding door roller of the present invention as described above is a roller roller to be mounted on the back surface of the surface plate of the sliding door, and the lower part of the front and back sides of the synthetic resin main body cover inside which the roller is rotatably mounted is the lower end of the roller. Since it is extended downward to form a sliding contact piece, when the sliding door with the door roller attached is mounted on a rail of a cabinet or the like, both sliding pieces slide and guide both sides of the rail. Since the surface plate and lower reinforcing part of the rail do not directly contact the rail, the sliding door can be opened and closed smoothly, and there is no risk of damaging the rail. Moreover, since the vertical dimension of the sliding contact piece protruding from the lower end of the roller can be appropriately set, it is possible to prevent the sliding door from coming off the rail. In addition, since retreat parts are provided at the lower ends of both sides of the main body cover, it is naturally possible to support the rollers on the rails without the main body cover contacting the rails.

[Brief description of drawings]

FIG. 1 shows a typical embodiment of a sliding door roller of the present invention,
(a) is a cross-sectional view of the main part with the door roller attached to the sliding door, and (b) is a front view of the main part as seen from the rear of the sliding door.

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

FIG. 3 is a vertical cross-sectional side view of a main part with a sliding door attached to a cabinet.

FIG. 4 is a front view of a door cover main body cover of the first embodiment.

[Figure 5] Similarly, a vertical side view

FIG. 6 is a vertical sectional side view showing an assembled state of the door roller of the first embodiment.

[FIG. 7] Similarly, a front view of the door roller

FIG. 8 is a front view showing the main body cover of the door roller of the second embodiment in a partial cross section.

[Fig. 9] Similarly, a vertical side view

FIG. 10 is a vertical sectional side view showing an assembled state of the door roller of the second embodiment.

[Fig. 11] Similarly, a front view of the door roller

FIG. 12 shows a spacer, (a) is a front view, (b) is a right side view, and (c) is a rear view.

[Explanation of symbols]

 A Door roller B Sliding door C Rail 1 Main body cover 2 Roller 3 Sliding contact piece 4 Retracting part 5 Engaging claw 6 Engaging piece 7 Surface plate 8 Reinforcing member 9 Reinforcing edge 10 Upper fixing piece 11 Lower fixing piece 12 Beam part 13 Bottom surface 14 Holding Piece 15 Side 16 Engagement edge 17 Notch 18 Upper surface 19 Cabinet 20 Projection 21 Guide strip 22 Through hole 23 Fitting hole 24 Recess 25 Connection piece 26 Shaft 27 Projection 28 Shaft hole 29 Engagement hole 30 Notch groove 31 Sliding Surface 32 Projection edge 33 Projection shaft 34 Annular recess 35 Inclined section 36 Outer peripheral section 37 Spacer 38 Plate-shaped body 39 Connecting pin

Claims (1)

[Scope of utility model registration request] 1. A door roller mounted on the back surface of a front plate of a sliding door, wherein a lower part of front and back sides of a synthetic resin main body cover inside which a roller is rotatably mounted is extended below a lower end of the roller. A door roller for a sliding door, which is formed as a sliding contact piece and is formed with a retreating portion for notifying a lower end portion on both sides of a main body cover to allow a rail for supporting a roller to escape.