JPH0229178Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door roller type shoji such as aluminum sash, and more specifically to a door roller type shoji that does not require rails or grooves.

Conventional door rollers run on horse-riding rails or in grooves installed in the shoji frame, so when cleaning the shoji frame, the rails and grooves get in the way and make cleaning difficult. There is a problem.
As a countermeasure to this problem, the applicant proposed the following door roller in Utility Model Application No. 57-137580. The door roller has tires running on a flat running surface (without rails or grooves) of the lower frame, and the guide engaging portion of the door roller engages with a downwardly opening guide groove provided in the lower frame. There is. However, if the running surface is made flat in this way, the running direction of the tires cannot be controlled by the running surface, so if force is applied diagonally (for example, slightly toward the outdoors) when opening or closing the shoji, In this case, the shoji may run at an incline, and as a result, the gasket of the shoji lower stile strongly presses against the lower frame, creating a large frictional force, resulting in the inconvenience that the shoji cannot be run smoothly.

The present invention attempts to solve the above problems, and includes a tire that runs on a flat running surface of the lower frame,
A door roller is attached to both ends of the shoji lower stile, and includes an engaging part that engages with the guide groove of the bottom opening of the lower frame, and a body that supports the tire and the engaging part, and is mounted horizontally and horizontally to the lower frame. A gasket facing in a horizontal and lateral direction perpendicular to the longitudinal direction is provided on the lower stile of the shoji over almost the entire length, a fixing piece for holding a brush for cleaning the running surface is integrally provided on the body, and the gasket At a position adjacent to the lower frame in the longitudinal direction, a protrusion made of a member with a low friction coefficient is integrally protruded from the fixed piece in the horizontal and lateral direction,
The present invention is characterized in that a steady rest part that contacts the lower frame in the above-mentioned direction when the shoji moves on an incline is formed by the above-mentioned protrusion.

Next, embodiments will be described with reference to the drawings. In FIG. 1, which is a partially cutaway vertical cross-sectional view, the shoji lower frame 1 is provided with horizontal walls 2 and 3 for running the shoji in a stepped manner,
A shoji 5 is installed above each of the horizontal walls 2 and 3. The lower stile 6 of the shoji 5 is the vertical wall 7 on the outdoor F side
A vertical wall 8 on the indoor R side and horizontal walls 9, 10 (or only 10) connecting both vertical walls 7, 8 are integrally provided. The vertical walls 7 and 8 extend further downward than the horizontal wall 10, and a door wheel 11 is fitted and fixed in a downwardly opening groove formed by both of the vertical walls 7 and 8 and the horizontal wall 10.

The door roller 11 includes a body 12 that supports tires 13 and a retaining arm 14, and the body 12 is attached to a horizontal wall 10.
It is held between vertical walls 7 and 8 in a state in which it is in contact with the lower surface of. A running surface 15 on which the tires 13 run is substantially flat and is formed by the upper surface of the portion of the horizontal walls 2 and 3 closer to the outdoor F. The arm 14 protrudes from the body 12 toward the room R side, and a small block-shaped engagement portion 16 is attached to the protruding end thereof in an upwardly protruding posture. The engaging portion 16 is slidably fitted into a downwardly opening guide groove 17 provided in the lower frame 1, and the engaging portion 16 allows the tire 13 to be aligned with the running surface 15 during driving.
It is prevented from coming off. The arm 14 is attached to the body 12 so that it can rise and fall, and when the shoji 5 is removed from the erected state shown in the figure, when the shoji 5 is slightly lifted, the tire 13 and its support mechanism are slightly lowered relative to the body 12. As a result of this downward movement, the arm 14 is greatly lowered from the illustrated position relative to the body 12, and the entire engaging portion 16 is lowered below the groove 17, so that the lower part of the shoji 5 can be removed to the outdoor F side. Become. Furthermore, during erection, each part operates in the opposite manner to that during removal, making it possible to easily erect each part into the state shown.

A groove 19 with a narrow opening width (wide inside) is formed in the lower edges of both vertical walls 7 and 8, and is open toward the room R side. 18 mounting portions are fitted and fixed. The packing 18 is perpendicular to the bottom frame 1, and the contact surface 20
It is opposed from the outdoor F side in a substantially contacting state, and prevents wind, rain, dust, etc. from entering the indoor R. The contact surface 20 is formed by a vertical wall of the groove 17 on the outdoor F side.

As shown in FIG. 2, which is a partial schematic view taken along the line - in FIG. 1, the door roller 11 is attached to both ends of the lower stile 6. The packing 18 is provided over almost the entire length of the lower stile 6, but the packing 18 is provided on both end sides of the lower stile 6.
A steady rest protrusion 21 is provided instead. Protrusion 2
Reference numeral 1 denotes a substantially rectangular parallelepiped-shaped member attached to the door roller 11 as described later, and is provided in the form of an extension of the seal 18, but it is attached to the contact surface 20 side by a small distance (for example, 0.1 to 0.2 mm) from the seal 18. protrudes to. The seal 18 is made of, for example, a copolymer of ethylene and vinyl acetate, which has a high coefficient of friction, whereas the protrusion 21 is made of a material with a low coefficient of friction, such as polyamide.

As shown in FIG. 3, which is a schematic perspective view, the door roller body 12
A fixing piece 22 made of synthetic resin is fixed to the lower part of the end face of one side (the tip side of the lower stile 6). The fixed piece 22 is a member that holds the upper part of the brush 23 for cleaning the running surface, and the protrusion 21 is fixed by integral molding on the indoor R side of the fixed piece 22 or by adhesive or the like. As shown in FIG. 4, which is a perspective partial view, the end of the vertical wall 8 of the lower stile 6 is cut out over a length l only at the circumferential wall portion of the gasket mounting groove 19. The protrusion 21 enters this notch l and comes into contact with the notch end surface 25 of the groove peripheral wall. A cut-out portion 26 for fixing the door roller is provided at the end of the other vertical wall 7. The cut-and-raised portion 26 is cut and raised toward the vertical wall 8, and the cut-and-raised portion 26 is fitted into a groove on the side surface (the side opposite to the protrusion 21) of the fixing piece 22 shown in FIG.

Explain the action. In FIG. 2, when a force in the longitudinal direction of the lower frame 1 is applied to the shoji 5 as indicated by an arrow P, the door roller 11 runs in the same direction and the shoji 5 opens and closes. In this opening/closing operation, if a force is applied to the shoji 5 in a direction inclined with respect to the longitudinal direction of the lower frame as shown by arrow Q, or if there is an error in the direction of the tires 13 of the door roller 11, the shoji 5 will move, for example. The vehicle travels in an inclined posture in which the door end a is more biased towards the indoor R side than the door end b. Then, the gasket 18 with a high coefficient of friction approaches the abutting surface 20 on the side of the door tip a, but only the protrusion 21 with a low coefficient of friction on the side of the door tip a comes into pressure contact with the abutting surface 20, and the gasket 18 comes into contact with the abutting surface 20. There is no pressure contact, and only the protrusion 21 slides on the contact surface 20 in a pressure contact state. Therefore, the shoji 5 can be opened and closed easily.

As explained above, according to the present invention, the protrusions 21 with a low friction coefficient are brought into contact with the contact surface 20 when traveling on an incline, and the seal 18 with a high friction coefficient is prevented from coming into pressure contact with the contact surface 20. It can be opened and closed easily at all times. Furthermore, the protrusion 21 is a member that comes into pressure contact with the contact surface 20 during inclined running, and the contact surface of the projection 21 (the surface that comes into pressure contact with the lower frame contact surface 20) is arranged approximately on the same plane as the contact surface (sealing surface) of the seal 18. Since it is possible to
0, and the sealing performance of the gasket 18 can be improved to a level that poses no practical problem. In particular, regarding the sealing performance against wind, the lower stile 6 etc. are bent due to the wind pressure and the seal 1
8 will come into close contact with the contact surface 20, and it can be expected that the sealing performance will be improved thereby. Furthermore, in the present invention, since the protrusion 21 is provided on the door roller 11, the protrusion 21 is provided on the lower stile 6.
The assembly work of the shoji 5 can be simplified compared to the case where the shoji 5 is fixed one by one. In particular, in this invention,
A fixed piece 22 that holds a brush 23 for cleaning the tire running surface 15 of the lower frame 1 is attached to the door roller body 12.
Since the protrusion 21 with a low friction coefficient for the steady rest is integrally protruded from the fixing piece 22, the protrusion 21 can be provided using the fixing piece 22 for the brush 23. The structure and assembly work can be particularly simplified.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway vertical cross-sectional view of an embodiment of the present invention, Fig. 2 is a schematic view of a portion viewed from the - arrow in Fig. 1, Fig. 3 is a schematic perspective view of a door roller, and Fig. 4 is a perspective view of a shoji lower stile. It is a partial diagram. 1...Bottom frame, 5...Shoji, 6...
Lower stile, 11... Door roller, 12... Door roller body, 13
... Tire, 15 ... Running surface, 16 ... Engagement part,
17... Guide groove, 18... Packing, 21... Steady rest protrusion (steady rest part), 22... Fixed piece,
23...Brush.

Claims (1)

[Scope of utility model registration request] A door roller equipped with a tire that runs on a flat running surface of the lower frame, an engaging part that engages with a guide groove opened at the bottom of the lower frame, and a body that supports the tire and the engaging part is mounted under a shoji. A shoji lower stile is provided with padskin attached to both ends of the stile and facing horizontally and laterally, horizontally to the lower frame and perpendicular to its longitudinal direction, over approximately the entire length of the shoji lower stile,
A fixed piece that holds a brush for cleaning the running surface is integrally provided on the body, and a protrusion made of a material with a low friction coefficient is installed on each door car at a position adjacent to the gasket in the longitudinal direction of the lower frame. A door roller type shoji, characterized in that the protrusion forms a steady rest part that integrally projects from the fixed piece in the horizontal and lateral direction and comes into contact with the lower frame in the direction when the shoji runs at an incline.