JP3523747B2 - Door catch device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door catching device, for example, a device for holding a door body such as a sliding door that opens and closes an opening of furniture and fittings in an open state in which the opening is opened.

[0002]

2. Description of the Related Art Conventionally, as a door catching device of this type, for example, one end of a guide rail embedded in a lower surface of a top plate of furniture is provided with an upper end and a lower end protruding from an upper end of a door body on a door contact side. A stopper body for receiving the guide roller mounted on the roller support shaft in the direction is embedded. The stopper body has a roller accommodating recess for accommodating one guide roller having a guide port communicating with the guide rail. Then, when the door body is opened, the guide roller of the door body is received from the guide rail through the guide port into the roller accommodating recess.

Further, the stopper body is formed with a resistance projection on one side of the front side of the guide opening which is a resistance against the guide roller when the guide opening is slightly narrowed and enters the roller accommodating recess. There is also a structure in which a guide roller decelerates a guide roller entering the roller accommodating recess by a projection.

[0004]

However, in the structure of the stopper body having the roller accommodating recess formed with the guide opening, the guide roller of the door body that has entered the roller accommodating recess from the guide opening when the door body is opened is There is a problem that the momentum when the door is opened rebounds excessively, and easily pops out from the roller accommodating recess to the guide rail side.

Further, in the structure of the stopper having a resistance projection on one side of the front side of the guide hole, the guide rollers of the door body, the even Tsu Hanekae left over the momentum upon opening of the door body The resistance of the resistance protrusion prevents the protrusion from the roller accommodating recess toward the guide rail side, but there is a problem that the protrusion from the roller accommodating recess toward the guide rail side may occur depending on the momentum when the door is opened.

Recently, two guide rollers are rotatably arranged side by side at the upper end of the door body on the door-stop side.
In the case of the structure in which these guide rollers are engaged with the guide rails, in the structure of each of the stopper bodies, it is not possible to receive the pair of two guide rollers in the roller accommodating recess when the door body is opened, There is a problem that these guide rollers pop out toward the guide rail side due to the momentum when the door is opened, and the stopper action thereof is difficult to function.

The present invention has been made in view of the above point, and it is possible to sufficiently catch the two guide rollers of the door body at the ends of the guide rails when the door body is opened. An object of the present invention is to provide a door catching device capable of reliably preventing the roller from bouncing off excessively when the door body is opened.

[0008]

According to a first aspect of the present invention, there is provided a door catching device comprising a guide rail, a door body that is openably and closably suspended by the guide rail, and an upper end portion of the door body on a door-contact side .
It is rotatably arranged in the guide roller unit to the opening and closing direction of the door body movably engaged with the outer to the guide rail
And a roller catch body fixed to an end portion of the guide rail and catching each of the guide rollers when the door body is opened. The body includes a fixed base fixed to an end portion of the guide rail, and an elastically deformable roller pressing plate extending from an upper portion of the fixed base along the guide rail toward a closing direction of the door body. The fixed base body has a first roller catch portion for receiving a guide roller on the outer side of the door body on an inner side portion thereof, and the roller pressing plate abuts on an upper end portion of the guide rail at a tip end portion thereof. The contact protrusions that come into contact with each other and between the contact protrusions and the upper portion of the fixed base body are elastically deformed by the passage of each of the guide rollers to prevent the guide rollers inside the door body from bouncing back. Second
The roller catch portion of the
1 roller catch part and said 2nd roller catch part
It is located between and is elastically deformed by passing the outer guide roller.
To prevent the outer guide roller from rebounding
And a roller catch portion of .

When the door is opened, the first roller is gradually decelerated by the second roller catch portion of the roller pressing plate where the inner guide roller elastically deforms from the outer guide roller. Moved towards the catch.
Then, with the outer guide rollers that is received by the first roller catch portion enters the first roller catch part, stopped accepted inside of the guide roller that is enters the second roller catch portion .

Further, when the door body is opened, if the outer guide roller tries to bounce back in the closing direction of the door body due to the momentum that has entered the first roller catch portion, the inner guide roller is driven by the second roller. Re received et <br/> at catching portion Rutotomoni, the outer guide rollers third Rorakya
The guide rollers prevent the guide rollers from bouncing in the closing direction of the door body. Therefore, each guide roller is sufficiently caught at the end of the guide rail, and the door body is held in the open state as a whole.

A door catching device according to a second aspect is the door catching device according to the first aspect, in which the roller pressing plate is located on the fixed base body side and prevents the guide roller outside the door body from rebounding. Of the third roller catch portion, and the second roller catch portion projects downward from the lower end portion of the third roller catch portion.

Since the second roller catch portion projects downward from the lower end portion of the third roller catch portion, the inner guide roller of the second roller catch portion serves as a door body. Bounce back in the closing direction is more reliably prevented. Therefore, the second roller catch portion and the third roller catch portion reliably prevent the guide rollers inside and outside the door body from bouncing back toward the closing direction of the door body.

[0013]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

Reference numeral 1 is a guide rail, and this guide rail 1
Is a horizontal portion 4 fixed along the lower surface portion of the upper frame 3 of the opening 2, and a vertical portion integrally vertically protruding downward from one end of the horizontal portion 4 in the width direction. The vertical portion 5 and the roller engaging portion 6 are integrally formed in a circular arc shape from the lower end of the vertical portion 5 toward the front side.

Reference numeral 7 denotes a door body that is hung openably and closably on the guide rail 1 and that opens and closes the opening 2. The door body 7 has an upper end portion on both sides in the width direction of the door body 7 on the door-contact side. The guide roller units 8 are embedded and fixed in the respective.

The guide roller unit 8 has a case body 9 embedded and fixed to the upper end of the door body 7 on the door-contact side.
A vertical roller mounting plate 10 fixed to the case body 9 so as to be positionally adjustable in the vertical direction, and an upper end portion of the roller mounting plate 10 in the opening / closing direction of the door body 7 (the horizontal direction of the opening 2). Roller support shafts 11 in a direction orthogonal to the roller mounting plates 10 located on both sides and fixed to each other, and roller support shafts 11 rotatably mounted on the roller support shafts 11 on both sides, respectively, are engaged with the guide rail 1 by a roller. And a plurality of guide rollers 12 engaged with the portion 6.

Reference numeral 13 is a roller catch body fixed to both ends of the guide rail 1, and the roller catch body 13 is
The fixed base 14 fixed between the horizontal portion 4 of the end portion of the guide rail 1 and the roller engaging portion 6, and the upper portion of the fixed base 14 along the horizontal portion 4 of the guide rail 1 An elastically deformable roller pressing plate 15 extending toward the closing direction of the door 7 is formed. Then, the fixed base 14 and the roller pressing plate 15 are integrally formed of synthetic resin.

The fixed base 14 has a circular arc-shaped first portion for receiving the guide roller 12a on the outer side of the door 7 on the inner side thereof.
The first roller catch portion 16 is formed in an arc shape so as to receive the outer side portion and the upper side portion of the outer guide roller 12a.

The roller pressing plate 15 has an abutting surface which abuts the horizontal portion 4 of the upper surface of the guide rail 1 at its tip.
A contact protrusion 18 having a guide roller 12 inside the door 7 between the contact protrusion 18 and the upper portion of the fixed base 14.
a second roller catch portion 19 for preventing bounce of the bounce,
A third roller catch portion 20 which is located on the fixed base 14 side and prevents the guide roller 12a outside the door body 7 from rebounding, the third roller catch portion 20 and the second roller catch portion 19 An arc-shaped concave portion 21 which is located between the second roller catch portion 19 and the upper portion of the guide roller 12b inside the door body 7 and which is formed in an upward arc shape. And a guide surface 19a which is formed to incline upward toward the inside of the portion 18 and guides the guide rollers 12a and 12b when the door 7 is opened.

Further, the second roller catch portion 19 is
It is formed so as to project downward in a substantially inverted mountain shape on the side opposite to the arc-shaped concave portion 21, and the top portion thereof when the door body 7 is opened (a state in which the door body 7 is moved to one side and the opening 2 is opened). In addition, the guide roller 12b on the inner side of the door 7 is projected toward the upper inner side to prevent the inner guide roller 12b from rebounding.

When the door 7 is opened, the outer guide roller 12a and the inner guide roller 1 of the door 7 are opened.
2b is gradually decelerated by the second roller catch portion 19,
The second roller catch portion 19 is sequentially pushed by the outer guide roller 12a and the inner guide roller 12b to be elastically deformed upward, and the outer guide roller 12a and the inner guide roller 12b. After the passage, the second roller catch portion 19 elastically returns to prevent the inner guide roller 12b from rebounding.

Further, the third roller catch portion 20 is
It is formed so as to project downward in a substantially arc shape on the side opposite to the arc-shaped recess 21, and the lower end thereof projects toward the upper inside of the guide roller 12a outside the door 7 when the door 7 is opened. The lever is prevented from rebounding from the guide roller 12a.

Further, when the door body 7 is opened, the guide roller 12a on the outer side of the door body 7 is decelerated by the third roller catch portion 20, and the guide roller on the outer side is decelerated.
The third roller catch portion 20 is pushed and elastically deformed upward by 12a, and the outer guide roller 12
After the passage of a, the third roller catch portion 20 elastically returns to prevent the outer guide roller 12a from rebounding.

Therefore, the second roller catch portion 19
Is formed so as to project downward from the lower end of the third roller catch portion 20. When the door 7 is closed, the outer guide roller 12a causes the third roller catch portion 20 to move to the first roller catch portion.
When the door 7 is closed, the outer guide roller 12a compares the third roller catch 20 with the third roller catch 20 in a direction away from the first roller catch 16. It is easy to pass through.

Therefore, when the door body 7 is opened, the second roller catch portion 19 and the third roller catch portion 20 can reliably prevent the guide rollers 12a and 12b on both sides from rebounding. However, when the door body 7 is closed, the resistance to the guide rollers 12a and 12b on both sides has a light weight difference, so that the door body 7 can be easily moved in the closing direction. Reference numeral 22 in the drawing denotes a vertical frame of the opening 2.

Next, the operation of the above embodiment will be described.

When the door 7 is opened, the guide rollers 12a on the outer side of the door 7 and the guide rollers 12b on the inner side are sequentially decelerated by the second roller catch portion 19 of the roller pressing plate 15 which is elastically deformed. It is moved toward the first roller catch portion 16. That is, the guide roller 12a on the outer side of the door body 7 is guided from the guide surface 19a of the roller catch body 13 to the second roller catch portion 19, and the second roller catch portion 19 is pushed up and elastically deformed to pass therethrough. Then, it is decelerated by the second roller catch portion 19 and moved toward the first roller catch portion 16. Further, the outer guide roller 12a pushes up the third roller catch portion 20 to elastically deform it, and passes through to enter the first roller catch portion 16.

The guide rollers 12b on the inside of the door body 7 are the same as the guide rollers 12a on the outside, and the roller catch body 1
The third guide surface 19a guides the second roller catch portion 19, pushes up the second roller catch portion 19, elastically deforms it, and passes the outer guide roller 12a to the first roller catch portion 16. At the same time as it enters, the inner guide roller 12b enters the lower part of the arc-shaped recess 21.

The outer guide roller 12a enters the first roller catch portion 16 and is received by the first roller catch portion 16, and the inner guide roller 12b is placed in the second roller catch 19 portion. It gets in and is accepted.

Further, when the door body 7 is opened, if the outer guide roller 12a tries to bounce back toward the closing direction of the door body 7 by the momentum that has entered the first roller catch portion 16, the momentum of the inner guide roller 12a The roller 12b is received by the second roller catch portion 19, and the inner guide roller 12b is prevented from bouncing in the closing direction of the door body 7. Further, the outer guide roller 12a is received by the third roller catch portion 20, and the outer guide roller 12a is received.
12a is prevented from bouncing back toward the closing direction of the door body 7.

At this time, the second roller catch portion 19 has the third
The second roller catch portion 19 is formed by projecting downward from the lower end portion of the roller catch portion 20 of
Thus, the inner guide roller 12b is more reliably prevented from bouncing in the closing direction of the door body 7.

Therefore, the guide rollers 12a and 12b on the inner and outer sides of the door body 7 are sufficiently provided by the second roller catch portion 19 and the third roller catch portion 20 of the roller catch body 13 at the end portion of the guide rail 1. The door body 7 is caught and is held in an open state as a whole.

In the above-described embodiment, the case where the roller catch body 13 having the fixed base 14 and the roller pressing plate 15 is made of synthetic resin as a whole has been described, but the present invention is not limited to this, and the fixed base 14 and the roller pressing plate are not limited thereto. The roller catch body 13 having 15 may be made of metal. In this case, the roller pressing plate 15 can be elastically deformed by being pressed by the guide rollers 12a and 12b, and when the guide rollers 12a and 12b pass and the pressing is released, the roller pressing plate 15 is elastically deformed. It shall consist of an elastic plate that can be restored.

With this structure, the guide rollers on the inside and outside of the door body 7 are the same as in the above-described embodiment.
12a and 12b are sufficiently caught by the second roller catch portion 19 and the third roller catch portion 20 of the roller catch body 13 at the end of the guide rail 1, and the door body 7 as a whole.
Is held open.

[0035]

According to the first aspect of the present invention, when the door body is opened, the two guide rollers at the upper end portion of the door body on the door-contact side are provided with the first guide roller roller at the end portion of the guide rail.
Roller catch part , second roller catch part and third
Sufficiently can catch at the roller catch unit, these two guide rollers can be reliably prevented from spring back door body closing direction surplus momentum upon opening of the door body, therefore, the roller catch The door body can be securely held in the open state by the body.

According to the second aspect of the present invention , the second roller catch portion projects downward from the lower end portion of the third roller catch portion, so that the plurality of guide rollers can be more reliably rebounded and rebounded. Can be prevented.

[Brief description of drawings]

FIG. 1 is a front view of a door catching device showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a front view of the door catching device showing a state in which the same door body is opened.

[Explanation of symbols]

1 Guide rail 7 door body 12 Guide roller 13 Roller catch body 14 Fixed base 15 Roller retainer plate 16 First roller catch part 18 Abutment protrusion 19 Second roller catch part 20 Third roller catch part

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) E05C 17/60 E05C 19/00-19/06 E05F 5/00 E05F 7/04

Claims (2)

(57) [Claims] 1. A guide rail, a door body hung openably and closably on the guide rail, and a guide roller unit at an upper end portion of the door body on a door stop side, which is rotatably arranged in an opening / closing direction of the door body. Two guide rollers, which are provided outside and inside and are movably engaged with the guide rail, and fixed at the end of the guide rail when the door is opened.
A roller catch body for catching each guide roller, wherein the roller catch body is a fixed base fixed to an end of the guide rail, and the door body extends from an upper portion of the fixed base along the guide rail. A roller pressing plate that is elastically deformable and extends toward the closing direction, and the fixed base body has a first roller catch portion that receives a guide roller on the outer side of the door body at its inner portion, The roller pressing plate has an abutting protrusion at its tip end that abuts against the upper surface of the guide rail, and elastic deformation between the abutting protrusion and the upper portion of the fixed base body due to the passage of each of the guide rollers.
A second roller catch portion that prevents the recoil of the guide roller inside the door body, and the fixed base body side.
The first roller catch portion and the second roller carrier.
It is located between the switch and the outer guide roller.
Prevents the outer guide rollers from bouncing due to elastic deformation
A door catch device having a third roller catching part . 2. The door catch device according to claim 1, wherein the second roller catch portion projects downward from the lower end portion of the third roller catch portion.