JPH0978931A - Door closer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door closer which allows easy adjustment of the angle by which a door panel is fully opened, can prevent the door from being opened in excess, and allows an arm and a link to stably fit into place. SOLUTION: This door closer comprises a closer main body 2 mounted on the upper part of the back of a door panel 1; an arm 3 projected from the closer main body 2 in such a way as to freely rotate and energized so as to rotate the door panel 1 in a closing direction; a link 4 freely rotationally connected to the end of the arm 3; and a bracket 6 by which the end of the link 4 is freely rotationally journalled to the upper frame part 5 of the frame of a door-mounting opening. The closer main body 2 is mounted on a horizontal mounting rail 7 provided on the upper part of the back of the door panel 1, in such a way that the closer main body 2 is free to be slid or fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door closer which is mounted between a rear upper portion of a door panel and an upper frame portion of a door mounting opening frame so as to be automatically closed while braking the door panel. is there.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a closer body (b) mounted on the upper rear surface of a door panel (a).
And an arm (c) that is rotatably projected from the closer body (b) and is urged to rotate the door panel (a) in the closing direction, and the arm (c) is rotated to the tip of the arm (c). A door closer is known that includes a link (d) that is freely connected and a bracket (f) that pivotally connects the tip of the link (d) to the upper frame portion of the door mounting opening frame (e). There is.

In this case, the door panel (a) is pivotally attached to one side frame portion of the door mounting opening frame (e) via a hinge (g) so that it can be freely opened and closed, and the arm (c) is rotated. When the arm (c) and the link (d) are rotated by an urging force so as to be folded, the door panel (a) is automatically rotated and closed while being braked.

[0004]

However, in the above-mentioned prior art, the closer body (b) and the bracket (f) are both the upper rear surface of the door panel (a) and the upper frame portion of the mounting opening frame (e). Since they are directly attached to each other by fasteners such as screws and nails, it is difficult to adjust the attachment position. Therefore, it becomes difficult to adjust the full opening angle of the door panel (a), and if the full opening angle is too large, the opening / closing side end portion of the door panel (a) or the handle (li) hits the side wall surface (h). There is a problem that the wall surface (h) is damaged. Further, depending on the mutual positional relationship between the closer body (b) and the bracket (f), the connecting portion between the arm (c) and the link (d) that are in a folded state when the door panel (a) is closed. May largely project from the door mounting opening frame (e) to the front side, and in this case, there is a problem of appearance and safety of the housing.

The present invention has been invented to solve the above-mentioned problems in the prior art. That is, the problem is that the fully open angle of the door panel can be easily adjusted to prevent the door panel from being opened too much. (EN) Provided is a door closer which can be prevented, and in which the arm and the link can be properly stored when the door panel is closed.

[0006]

According to a first aspect of the present invention, there is provided a door closer, which is attached to an upper portion of a back surface of a door panel, and a rotatably projecting portion from the closer body, the door panel being rotated in a closing direction. An arm that is urged to rotate, a link that is rotatably connected to the tip of the arm, and a bracket that pivotally connects the tip of the link to the upper frame of the door mounting opening frame. A horizontal mounting rail is provided on the upper rear surface of the door panel, and the closer body is slidably mounted on the mounting rail.

Therefore, by slidingly moving the closer body along the mounting rail and adjusting and fixing the mounting position, the fully open angle of the door panel, which is restricted by the arm and the link being in the extended state, can be easily adjusted. Therefore, it is possible to prevent the door panel from being opened too much, and moreover, to ensure that the arm and the link do not project from the door mounting opening frame when the door panel is closed. it can.

A door closer according to claim 2 of the present invention is
In the door closer according to claim 1, a support rail is provided along an upper frame portion of the door mounting opening frame, and a bracket is slidably coupled to the support rail. Therefore, in this case, in particular, not only the position adjustment of the closer body but also the position adjustment of the bracket is performed by sliding the bracket along the support rail and adjusting and fixing the mounting position of the bracket. It is possible to easily adjust the fully open angle of a wide range.

A door closer according to claim 3 of the present invention is
The door closer according to claim 2 is characterized in that a support rail is integrally formed with an upper frame member attached to an upper frame portion of the door mounting opening frame. Therefore, in this case, in particular, the support rail can be easily provided in the longitudinal direction of the upper frame portion of the door mounting opening frame.

[0010]

1 and 2 show the first aspect of the present invention.
1 to 3 show an embodiment corresponding to all three, the door closer of the embodiment, a closer body 2 attached to the upper rear surface of the door panel 1, and a rotatably protruding from the closer body 2 in the closing direction. Arm 3 urged to rotate to, a link 4 rotatably connected to the tip of the arm 3, and the tip of the link 4 to the upper frame portion 5 of the door mounting opening frame. The bracket 6 is pivotally connected to the door panel 1. A horizontal mounting rail 7 is provided on the upper rear surface of the door panel 1, and the closer body 2 is slidably mounted on the mounting rail 7.

In the floor material joining structure of the present embodiment, the support rail 8 is provided along the upper frame portion 5 of the door mounting opening frame, and the bracket 6 is slidably fixed to the support rail 8. In this case, the support rail 8 is integrally formed with the upper frame member 9 attached to the upper frame portion 5 of the door mounting opening frame.

The mounting rail 7 is made of an extruded aluminum material having an appropriate length, has a substantially U-shaped cross section, and is integrally formed with inwardly bent flange pieces 10 on both side edges thereof, and a bottom piece 11 thereof. It is attached and fixed to the upper part of the back surface of the door panel 1 by a plurality of screws 12 that are inserted into the door panel 1. The mounting rail 7
A back plate 13 is slidably housed in the back plate 13.
Closure body 2 by tightening screw 15 screwed to 13
Is slidably mounted on the mounting rail 7.

That is, by tightening the tightening screws 15 which are inserted into the flange pieces 14 projecting from both sides of the closer body 2, the flange pieces 14 and the back plate 13 serve to attach the mounting rail 7 to each other. The closure body 2 is sandwiched and fixed to both flange pieces 10, and the tightening screw 15 is loosened, and the closer body 2 is slid along the mounting rail 7 together with the back plate 13 and the tightening screw 15.

An arm 3 is integrally connected to a rotary shaft 16 projecting upward from the closer body 2, and the arm 3 is driven by hydraulic pressure, pneumatic pressure, elastic restoring force, etc. applied to the rotary shaft 16. It is biased to rotate the door panel in the closing direction. One end of a link 4 is rotatably connected to the upper end of the arm 3 via a shaft pin 17, and the other end of the link 4 is rotatably connected to the lower side of the bracket 6 via a shaft pin 17. Is pivotally coupled to.

An upper frame member 9 protruding in an eaves-like shape to the front of the door panel 1 is attached and fixed to the upper frame portion 5 of the door mounting opening frame, and a support rail 8 is attached to a rear end edge of the upper frame member 9. Are integrally formed. The support rail 8 is brought into contact with the lower surface of the upper frame portion 5 and opens downward in a substantially U-shape, and like the mounting rail 7, a back plate 13 and a tightening screw 15 are provided on both flange piece portions 10 thereof. The bracket 6 is clamped and fixed, and the tightening screw 15 is loosened.
The bracket 6 is slid along with the support rail 8 together with 15.

Further, the upper frame member 9 is hollow, and a door-contacting piece 18 is integrally hung on the lower surface of the eave-shaped protruding portion, and the door-contacting piece 18 is attached and held. The upper end of the back surface of the door panel 1 is detachably abutted on the packing material 19. The door panel 1 is pivotally attached to one side frame portion of the door mounting opening frame via a hinge 20 so as to be rotatable and openable, and the arm 3 and the link 4 are folded by the rotational biasing force of the arm 3. When the door panel 1 is rotated, the door panel 1 is automatically rotated and closed while being braked.

Therefore, in the door closer of this embodiment, as shown in FIG. 2, the closer body 2 is slid along the horizontal mounting rail 7 provided on the upper rear surface of the door panel 1 to adjust its mounting position. By fixing, the fully open angle of the door panel 1 in which the arm 3 and the link 4 are restricted in the extended state can be easily adjusted.

As a result, it is possible to prevent the door panel 1 from opening too much, and there is no problem that the opening / closing side end portion of the door panel 1 or the handle 22 hits the side wall surface 21 and damages the wall surface 21. Moreover, as indicated by the chain double-dashed line in FIG. 2, when the door panel 1 is closed, the arms 3 and the links 4 which are in the folded state do not protrude from the door mounting opening frame. Frame part 5
Along with can be made to have a good appearance,
Safety can also be secured.

Further, in the door closer of this embodiment, the bracket 6 is slid along the support rail 8 provided along the upper frame portion 5 of the door mounting opening frame to adjust and fix its mounting position. By performing not only the position adjustment of the closer body 2 but also the position adjustment of the bracket 6, the fully open angle of the door panel 1 can be adjusted more easily in a wide range. Further, the support rail 8 is integrally formed with the upper frame member 9 attached to the upper frame portion 5 of the door mounting opening frame, and the support rail 8 is easily provided along the entire length of the upper frame portion 5 in the longitudinal direction. ing.

FIG. 3 shows another embodiment corresponding to claim 1 of the present invention. In the door closer of this embodiment, the mounting rail 7 has a substantially I-shaped cross section and is made of synthetic resin. The mounting rail 7 is attached and fixed to the upper portion of the back surface of the door panel 1 by wood screws 24 inserted through both side portions of the piece portion 23. The narrow upper part 25 of the mounting rail 7 is slidably fitted with a groove-shaped part 26 which is formed in the front side of the closer body 2 and which is enlarged internally so as to hold it. The closer body 2 is fixed at an appropriate position in the longitudinal direction of the mounting rail 7 by a set screw 27 threadedly inserted into the side wall portion of the groove portion 26. Further, a bracket 6 is fixed to the lower surface of the upper frame portion 5 of the door mounting opening frame by a wood screw 24 so as not to move, and a door stop member 28 having a packing material 19 is attached and fixed to the lower surface of the upper frame portion 5. Has been done.

Other than that, the construction is substantially the same as that of the above-mentioned embodiment, and therefore, in the door closer of this embodiment as well, the closer body 2 is slid along the mounting rail 7 to adjust and fix its mounting position. By doing so, the fully open angle of the door panel 1 can be easily adjusted, which can prevent the door panel 1 from opening too much, and when the door panel 1 is closed, the arm 3 and the link 4 are It can be made to fit well so as not to project from the door mounting opening frame.

[0022]

As described above, in the door closer according to the first aspect of the present invention, the closer body is slid along the horizontal mounting rail provided on the upper rear surface of the door panel to adjust and fix the mounting position. By doing so, it is possible to easily adjust the full opening angle of the door panel, which can prevent the door panel from opening too much, and moreover, when the door panel is closed, the arm and the link have the door mounting opening. It can be made to fit well so that it does not protrude from the frame.

Further, in the door closer according to claim 2 of the present invention, in particular, the bracket is slid along a support rail provided along the upper frame portion of the door mounting opening frame to adjust and fix its mounting position. By doing so, not only the position adjustment of the closer body but also the position adjustment of the bracket can be performed, and the fully open angle of the door panel can be adjusted more easily in a wide range.

Further, in the door closer according to claim 3 of the present invention, in particular, the support rail is integrally formed with an upper frame member attached to an upper frame portion of the door mounting opening frame,
The support rail can be easily provided in the longitudinal direction of the frame portion.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of a door closer according to the present invention.

FIG. 2 is a schematic plan view showing an entire installation state of the door closer.

FIG. 3 is a cross-sectional view of main parts showing another embodiment of the door closer according to the present invention.

FIG. 4 is a schematic plan view showing an entire construction state of a conventional door closer.

[Explanation of symbols]

 1 Door Panel 2 Closer Body 3 Arm 4 Link 5 Upper Frame 6 Bracket 7 Mounting Rail 8 Support Rail 9 Upper Frame Form

Claims (3)

[Claims] 1. A closer body attached to an upper part of a back surface of a door panel, an arm rotatably projecting from the closer body and biased to rotate the door panel in a closing direction, and a tip end of the arm. A link that is rotatably connected, and a bracket that pivotally connects the tip of the link to the upper frame portion of the door mounting opening frame, and a horizontal mounting rail is provided on the upper rear surface of the door panel. A door closer made by mounting the closer body on the mounting rail so that it can be fixed in a slidable manner. 2. The door closer according to claim 1, wherein a support rail is provided along an upper frame portion of the door mounting opening frame, and a bracket is slidably fixed to the support rail. 3. The door closer according to claim 2, wherein a support rail is integrally formed with an upper frame member attached to an upper frame portion of the door mounting opening frame.