JPH09228723A - Sush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make easy the work applied to a lower frame and prevent deformation of housing by providing an engaging fin at the lower frame, and fitting a lower edge positioned right and left in the opening and closing directions of 'Shoji' (Japanese typical paper-based sliding door) of housing in a door wheel fitting space. SOLUTION: A lower edge having stepped parts for insertion parts 14a, 14c in both side walls of an outer housing 11 is inserted from a front end of a lower frame 2 so that it is fitted in an engaging groove 9, 10, and moved horizontally in the rear direction. Then, an engaging claw 21 of the housing 11 is fitted in an engaging hole of partitioning wall, and simultaneously therewith, a stopper part 23a, 23c of the insertion part 14a, 14c collides on a front end of fin 7, 8. The housing 11 is mounted in a door wheel fitting space 4 so that it can not move forward and rearward. A rolling wheel 13 is supported between right an left side plates of an inner housing 12 so as to be turnable. The inner housing 12 is fitted to the outer housing 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door door roller.

[0002]

2. Description of the Related Art Most of sliding doors that run on rails are provided with a door roller. A door roller usually has a housing and rolling wheels, and the rolling wheels are rotatably supported by the housing, and the housing is attached to the lower frame of the shoji (Shokai 59-1738).
No. 75). At the time of installation, a notch is provided in the lower wall of the lower frame, the housing is inserted together with the rolling wheel from there, and the lower wall portion left by the notch processing is used to position and fix the housing ( 64-1
8274, etc.).

In this case, since the lower wall is formed so that the bottom of the lower frame is entirely closed (FIG. 7A), in order to make a necessary notch, as shown in FIG. It requires a process. Furthermore, the shoji load is applied to the door roller from above, acts in a direction that distorts the housing, and the horizontal force is repeatedly applied when opening and closing the shoji, so that the side walls and front and rear walls are reliably positioned and fixed. There is a need.

Conventionally, the positioning is fixed by utilizing the engagement between a protrusion or a cut-and-raised portion provided on the housing and a hole or a notch provided on the lower frame (the above-mentioned publication, Japanese Utility Model Laid-Open No. 61- No. 133682 gazette, etc.) has a structure in which it is difficult to withstand the deformation due to the fine processing and a decrease in strength or the deformation toward the inside of the space. For this reason, in order to obtain stable running of the shoji for a long period of time, troublesome work such as welding and screwing is added to the housing formed by pressing a steel plate.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a sash having a sweeping door roller device, in which a lower frame is easily processed when installing a door roller, and the housing is deformed by a load of a shoji screen or a force at the time of opening and closing. And the provision of a door roller to be used in such a device.

[0006]

[Means for Solving the Problems] In a sash, a door frame device is composed of a lower frame of a shoji screen and a door frame. The lower frame has a door roller mounting space whose lower surface is open in cross section, and hook-shaped engaging fins facing upward are provided in the longitudinal direction of the lower frame toward the lower inner surfaces of both side walls forming the door roller mounting space. That is, the hook-shaped engaging fin provides an engaging groove that opens upward in the longitudinal direction of the lower frame. The door roller has a housing whose outer shape is a substantially rectangular parallelepiped, and the lower edges of both side walls of the housing, which are left and right with respect to the opening / closing direction of the shoji, are fitted into the engagement grooves of the lower roller in the door roller mounting space of the lower roller. Install with.

Since the lower frame has an open lower surface and there are only engaging fins on both sides along the longitudinal direction, when the door roller is mounted, the shaft portion slightly protruding from both sides of the housing is passed through. It only needs to be provided with a notch, and it only needs to be machined once. The lower frame engaging groove serves as a guide when the housing is attached, and the lower edges of both side walls of the housing are restrained by the lower frame engaging groove to prevent the housing from being deformed inward.

The housing of the door roller can be, for example, a pressed product of a single sheet metal having at least both left and right side walls and front and rear walls. In this case, the front and rear walls are formed by bending the extensions at both ends of the left and right sidewalls and overlapping the folded extensions. Then, at the overlapping position, the protrusion in the front-rear direction provided on one extension is engaged with the engagement hole provided on the other extension.

In this housing, the extended portions of the front and rear walls, which are extended from both side walls and overlap each other, are simply joined together by the front and rear engaging projections and the engaging holes. There is no need for trouble such as screwing. In addition, since the overlapped extension is firmly connected by the front and rear ridges and the engagement hole, the extension is strong against deformation such that the side wall spacing on both sides becomes wide or narrow, and can be used for a shoji with a large load. it can.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 2 shows a door roller device 1 in a sash, which comprises a lower frame 2 of a shoji screen and a door roller 3. The lower frame 2 of the shoji screen is an extruded aluminum alloy product and has a door roller mounting space 4 whose lower surface is open in cross section. Further, hook-shaped engaging fins 7 and 8 facing upward are provided on the lower inner surface sides of both side walls 5 and 6 forming the door roller mounting space 4, and the hook-shaped engaging fins 7 and 8 allow the downward movement. Engagement grooves 9 and 10 are provided along the longitudinal direction of the frame.

The door roller 3 comprises an outer housing 11, an inner housing 12 and rolling wheels 13. Outer housing 11
Is a substantially rectangular parallelepiped without a bottom surface, as shown in FIG. 3, by press working including punching. When the sheet metal is punched, the left wall is formed on both sides of the upper wall B as a center. A and the right side wall C are integrally connected, and the left and right side walls A and C have extensions D, E and F, G at the front and rear ends, respectively. The directions and positions of front, rear, left and right are for convenience of description, and may be reversed depending on the position where the door roller 3 is attached.

The left side wall portion A has an insertion portion 14a on the lower side, and a notch 15a for inserting a support shaft portion 28 (described later) from the lower side upward. Reference numeral 16a is a restriction hole for limiting the rotation range of the inner housing, and reference numeral 17a is a bulged portion (FIG. 2) bulging outward. An engaging protrusion 18a is provided on the rear extension D, and a screw hole 19a is provided on the front extension E.
And an engaging protrusion 20a.

Engaging claws 21 are formed on the upper wall B by cutting and raising so as to engage with the forward movement. Reference numeral 22 is a reinforcing recess formed across the upper wall B and extending from both ends to the left and right side walls A and C. The right side wall portion C is formed symmetrically with the left side wall portion A, and similarly the lower side insertion portion 1 is formed.
4c, a notch 15c for inserting the support shaft, a restriction hole 16c for limiting the rotation range of the inner housing, and a bulge 17c bulging outward. The rear extension F has an engagement hole 18c, and the front extension G has a screw hole 19c and an engagement hole 20c. Furthermore, the insertion parts 14a, c are
A step is formed at the middle portion in the width direction, and stopper portions 23a and 23c are provided at the front end.

As shown in FIG. 4, the inner housing 12 is formed by pressing a front plate 2 from a single metal plate.
4 and left and right side plates 25 and 26 are formed and bent on both sides of the front plate 24. The left and right side plates 25 and 26 are respectively provided with a shaft support portion 27 (a, b) and a support shaft portion 28 (a, b) and the regulation protrusion 29 (a, b) are provided. These are front plate 2
4 are arranged symmetrically, and the support shaft portion 28 (a,
b) is slightly overhanging to the outside.

The outer housing 11 in which the sheet metal is punched (FIG. 3) is mountain-folded at the broken line portions and valley-folded at the chain line portions to assemble the whole into a rectangular parallelepiped as shown in FIG. Bend (a, c) inward. Notches 15 (a, c) in the left and right side walls A, C, regulation hole 1
6 (a, c) face each other, extensions D, F overlap at the rear,
The engagement protrusion 18a of the extension portion D fits tightly into the engagement hole 18c of the extension portion F. In addition, the engaging protrusion 19 of the extension portion E in front of
a is tightly fitted into the engagement hole 19c of the extension portion G, and the screw holes 20 (a, c) are aligned.

The door roller 3 is attached to the lower frame 2 as follows. Notches 30 and 31 are provided in the hook-shaped engaging fins 7 and 8 in the door frame mounting space 4 of the lower frame 2 (FIG. 6),
Further, an engagement hole 33 is formed in the partition wall 32 (FIGS. 2 and 6) of the lower frame 2.

The stepped lower edges of the insertion portions 14 (a, c) of the left and right side walls A and C of the outer housing 11 are fitted into the engaging grooves 9 and 10, respectively, so that the outer housing 11 is attached to the lower frame 2. Insert from the front end and move horizontally to the rear. Then, the engaging claws 21 on the upper wall B of the outer housing 11 are engaged with the engaging holes 33 provided on the partition wall 32 of the lower frame 2.
The engaging claw 21 is fitted into the engaging hole 33 of the partition wall 32 at a position beyond. At the same time, the stopper portions 23 (a, b) at the front ends of the insertion portions 14 (a, c) collide with the front ends of the engaging fins 7, 8. As a result, the outer housing 11 is attached to the door roller mounting space 4 of the lower frame 2 so as not to move back and forth. Further, the raised portions 17 (a, c) provided on the left and right side walls A, C of the outer housing 11 are in contact with both side walls 5, 6 of the lower frame 2 to prevent the outer housing 11 from rattling left and right. Notches 15 (a, b) located on both sides of the outer housing 11
Corresponds to the notch 30 formed in the engaging fins 7 and 8 of the lower frame 2.

The rolling wheel 13 is inserted between the left and right side plates 25 and 26 of the inner housing 12 and rotatably supported (FIG. 5).

Inner housing 12 supporting the rolling wheels 13
Is fitted to the outer housing 11 from the lower side by aligning the support shaft portions 28 (a, b) projecting outward with the notches 15 (a, c) of the outer housing 11. Inner housing 12
The support shaft portion 28 (a, b) reaches the upper end of the notch 15 (a, c) and rotates at that position. Control projection 29 (a,
b) fits in the regulation hole 16 (a, c).

Overlapping screw holes 19 (a,
The adjusting screw 34 is screwed in from c), and the tip is brought into contact with the front plate 24 of the inner housing 12. The inner housing 12 can be removed by pulling it downwards without removing the sliding door so that the door roller 3 is not loaded. Further, when the shoji is built in, the rolling wheel 13 is pushed up by the load of the shoji and does not come off. When adjusting the height of the rolling wheel 13, the adjusting screw 34 is screwed in and the inner housing 12 is rotated around the support shaft portion 28 (a, b) (FIG. 6). In the rotation range, the regulation projections 29 (a, b) have the regulation holes 16 (a, c).
Is the range that can be moved.

Although the door roller 3 is provided with the outer housing 11 and the inner housing 12 as described above, it may be provided with only the outer housing 11 and the rolling wheels 13 are directly pivotally supported on the outer housing 11.

[0022]

According to the structure of the first aspect, since the lower edge of the housing is fitted in the engaging groove of the lower frame, even if the load of the shoji acts on the housing of the door roller, the inside or the outside of the door roller can be prevented. The door roller will not be deformed, and the durability of the door roller will be increased, and the shoji can be run stably for a long period of time.

According to the second aspect of the present invention, since the respective extension portions of the left and right side walls of the housing are overlapped and coupled with each other by the engaging projection and the engaging hole, means such as welding or screwing is required. Therefore, it is possible to reduce the time and effort required for manufacturing the door roller.
Further, since the connection of the polymerized extensions can be made strong, it is possible to suppress the tendency of the housing to be deformed inward or outward due to the load of the shoji.

According to the third aspect of the present invention, the reinforcement by the engagement between the engagement fin of the lower frame and the lower edge of the housing, the engagement protrusions and the engagement holes in the front wall portion and the rear wall portion of the housing are provided. The sash provided with the highly durable door roller device can be obtained by the reinforcement of the housing itself by the connection of the.

[Brief description of drawings]

FIG. 1 is a perspective view showing the entire door roller.

FIG. 2 is a front view of the lower frame (partially omitted)

FIG. 3 is an exploded view of an outer housing

FIG. 4 is a development view of an inner housing

FIG. 5 is a perspective view of an inner housing.

FIG. 6 is a mechanism diagram showing a mounted state.

FIG. 7A is a front view of the lower frame, and FIG. 7B is an explanatory view of a processed state (conventional).

8A is a front view of the lower frame, and FIG. 8B is an explanatory view of a processed state.

[Explanation of symbols]

 1 Door Roller Device 2 Lower Frame 3 Door Roller 4 Door Roller Mounting Space 5 Left Side Wall 6 Right Side Wall 7 Engaging Fin (Left) 8 Engaging Fin (Right) 9 Engaging Groove (Left) 10 Engaging Groove (Right) 11 Outer Housing 12 Inner housing 13 Rolling wheel 14 Insertion part 15 (a, c) Notch 16 (a, c) Restriction hole 17 (a, c) Raised part 18a Engagement protrusion 18b Engagement hole 19 (a, c) Screw hole 20a Engagement projection part 20b Engagement hole 21 Engagement claw 22 Recessed part 23 (a, c) Stopper part 24 Front plate 25 Left side plate 26 Right side plate 27 (a, b) Shaft support part 28 (a, b) Support shaft part 29 (A, b) Control protrusion 30 Notch 31 Notch 32 Partition wall 33 Engagement hole 34 Adjustment screw

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 22, 1996

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] Claim 3

[Correction method] Change

[Correction contents]

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

The housing of the door roller can be, for example, a pressed product of a single sheet metal having at least both left and right side walls and front and rear walls. In this case, the front and rear walls are formed by bending and extending the extension portions at both ends of the left and right side walls. Then, at the overlapping position, the protrusion in the front-rear direction provided on one extension is engaged with the engagement hole provided on the other extension.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

In this housing, the extended portions of the front and rear walls, which are extended from both side walls and overlap each other, are simply joined together by the front and rear engaging projections and the engaging portions . There is no need for trouble such as screwing. In addition, the overlapped extension is firmly joined by the front and rear ridges and the engaging portion , so it is strong against deformation such that the side wall spacing on both sides becomes wide or narrow, and can be used for shoji with a large load. it can.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

Engaging claws 21 are formed on the upper wall B by cutting and raising so as to engage with the forward movement. Reference numeral 22 is a reinforcing recess formed across the upper wall B and extending from both ends to the left and right side walls A and C. The right side wall portion C is formed symmetrically with the left side wall portion A, and similarly the lower side insertion portion 1 is formed.
4c, a notch 15c for inserting the support shaft, a restriction hole 16c for limiting the rotation range of the inner housing, and a bulge 17c bulging outward. The rear extension F has an engagement hole 18c (engagement portion) , and the front extension G has a screw hole 1c.
9c and an engagement hole 20c. Furthermore, the insertion part 14
Each of a and c has a step at the middle portion in the width direction and has stopper portions 23a and 23c at the front end.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction contents]

Although the door roller 3 is provided with the outer housing 11 and the inner housing 12 as described above, it may be provided with only the outer housing 11 and the rolling wheels 13 are directly pivotally supported on the outer housing 11. The engaging projection 18a fits
The engaging hole 18c to be inserted is a concave portion having no hole as an engaging portion.
It may be a department.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Kinoshita 70 Hayakawa, Takaoka City, Toyama Prefecture Sankyo Aluminum Industry Co., Ltd.

Claims (3)

[Claims] 1. A hook-shaped member having a lower frame of a shoji screen and a door roller, the lower frame having a door roller mounting space whose lower surface is open in cross section, and facing upward toward the lower inner surface of both side walls forming the door roller mounting space. The door rail is provided with a housing in the longitudinal direction of the lower frame, and the door rail is provided with a housing. A sash that is characterized by being installed in the door car installation space. 2. A housing having at least left and right side walls and front and rear walls, wherein the front and rear walls are formed by bending extension portions at both ends of the left and right side walls and overlapping the folded extension portions. A door roller in which a front-rear engaging protrusion provided on one extension at the overlapping portion is engaged with an engagement hole provided on the other extension. 3. A lower frame of a shoji screen and a door roller, the lower frame having a door roller mounting space whose lower surface is open in cross section, and a hook-shaped member facing upward toward the lower inner surface of both side walls forming the door roller mounting space. An engaging groove formed by a coupling fin is provided in the longitudinal direction of the lower frame, the door roller is provided with a housing, and the housing has at least left and right side walls and front and rear walls, and the front and rear walls are bent extensions at both ends of the left and right side walls. , Has a structure in which a bent extension is formed by overlapping, and an engaging protrusion in the front-rear direction provided on one extension at an overlapping portion is engaged with an engagement hole provided on the other extension. A sash characterized in that the lower edges of both side walls of the housing, which are on the left and right with respect to the opening / closing direction of the shoji screen, are fitted into the engagement grooves of the lower frame and mounted in the door roller mounting space.