JP7221820B2 - door - Google Patents

Description

The present invention relates to doors .

2. Description of the Related Art Conventionally, there is known a door closer that is rotatably supported on a door frame attached to an opening of a building and used for a door that opens and closes the opening by rotating (see, for example, Patent Document 1).
The door closer described in Patent Literature 1 includes a closing device main body attached to the upper end of a door, and a link member connecting the closing device main body and the wall side. A closing mechanism for automatically closing the door is installed inside the closing device body. Therefore, when the hand is released from the door after the door is opened, the door is automatically closed by the closing mechanism.

JP-A-10-280793

However, the door closer described in Patent Literature 1 has a link member, so there is a problem that the size of the door closer increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door that can be downsized.

In order to achieve the above object, a door closer according to the present invention is a door that is rotatably supported by a support member attached to an opening of a building, and that rotates to open and close the opening . and a door closer, wherein the door closer is inserted into the hollow portion, is disposed with a portion protruding from the hollow portion, and engages with the support member to engage with the support member. A shaft member that allows the door to rotate, and a shaft member that is vertically movably attached to the door and moves vertically in conjunction with the relative rotation of the shaft member with respect to the door when the door is opened and closed. and an urging member disposed in the hollow portion, connecting the interlocking member and the door, and urging the door in a closing direction via the interlocking member , wherein the hollow portion is provided with a guide hole extending vertically to communicate the inside and outside of the hollow portion, and the interlocking member includes an interlocking member main body arranged outside the hollow portion and the guide hole a first connecting portion connecting between the interlocking member main body and the shaft member via the guide hole; and a second connecting portion connecting between the interlocking member main body and the biasing member via the guide hole. and is movable up and down while being guided by the guide hole .

According to the door of the present invention, size reduction can be achieved.

It is the figure which looked at the door which concerns on embodiment from the outdoor side. Fig. 3 is a cross-sectional view of the door; It is a figure which shows the structure of a door closer. It is the figure which looked at the rotating cam from the side. It is a figure explaining operation|movement of a door closer. It is a figure explaining operation|movement of a door closer. It is a figure explaining operation|movement of a door closer. It is a figure which shows the modification of embodiment.

EMBODIMENT OF THE INVENTION Below, with reference to drawings, the form (henceforth, embodiment) for implementing this invention is demonstrated. It should be noted that the present invention is not limited by the embodiments described below. Furthermore, in the description of the drawings, the same parts are given the same reference numerals.

[General configuration of the door]
FIG. 1 is a view of a door 1 according to this embodiment as seen from the outside. FIG. 2 is a cross-sectional view of the door 1. FIG.
In addition, the "prospect direction" described below is the direction along the depth of the door 1 (the direction of the arrow Ar in FIG. 2). A plane along the projection direction may be called a projection plane, and a plane orthogonal to the projection direction may be called a projection plane.
The door 1 is an outward-opening hinged type indoor door that is used as an indoor partition or the like. (Fig. 2). That is, the door frame 100 corresponds to the supporting member according to the invention.

Here, the door frame 100 includes a suspension-side vertical frame 101, a door-end-side vertical frame 102, and a pair of support plates 103 (FIG. 2).
A pair of support plates 103 are provided at both upper and lower ends of the suspension-side vertical frame 101, respectively. The pair of support plates 103 extend toward the outside of the room and support the door 1 .
The door 1 is supported between the pair of support plates 103 so as to be rotatable around the rotation axis Ax (FIG. 2). That is, the door 1 according to the present embodiment is a so-called outset type door in which the rotation axis Ax and the door 1 are arranged outside the opening OP and is not provided with a door latch. Therefore, the door 1 is in a closed position (the position of the door 1 indicated by a solid line in FIG. 180° rotatable around the rotation axis Ax between the open position where the opening OP is open (the position of the door 1 indicated by the dashed line in FIG. 2) (opening angle: 0° at the closed position; opening angle: 180°) (Fig. 2). Further, the door 1 according to the present embodiment is configured as a center hinge type door in which the rotation axis Ax is positioned at the center of the door 1 in the prospective direction.

A door 1 includes a panel 2 and a hanger-side vertical frame 3 (Fig. 2).
The face material 2 is a rectangular plate made of glass, a resin plate, a wooden panel, or the like.
The hanger-side vertical frame 3 is arranged on the hanger side of the door 1 (on the left side in FIGS. 1 and 2) and holds the panel 2. As shown in FIG. The suspension-side vertical frame 3 is formed of an extruded shape member made of metal such as aluminum or resin, and has substantially the same cross-sectional shape over the entire length. The suspension-side vertical frame 3 includes a hollow portion 31 communicating in the vertical direction, and a pair of holding pieces 32 projecting from the hollow portion 31 .

The hollow portion 31 includes an outdoor side wall portion 311, an indoor side wall portion 312, a suspension side wall portion 313, and a door tip side wall portion 314 (FIG. 2).
The outdoor side wall portion 311 and the indoor side wall portion 312 are walls extending in the left-right direction in FIG. 2 and facing each other along the direction of projection.
The suspension side wall portion 313 is a wall portion that connects the suspension side edge portions of the outdoor side wall portion 311 and the indoor side wall portion 312, and is formed in a semicircular cross section with the rotation axis Ax as the center of the circle. .
The door tip side wall portion 314 is a wall portion that connects edge portions on the door tip side of the outdoor side wall portion 311 and the indoor side wall portion 312, and is formed in a straight line.
The pair of holding pieces 32 are portions extending from the outdoor side wall portion 311 and the indoor side wall portion 312 toward the door end side. The face member 2 is held between the pair of holding pieces 32 .

In the door 1 described above, a door closer 4 (FIG. 1) is provided on the upper portion of the suspension side. The configuration of the door closer 4 will be described below.

[Structure of Door Closer]
FIG. 3 is a diagram showing the configuration of the door closer 4. As shown in FIG.
The door closer 4 has a self-closing function that rotates the door 1 in a closing direction when the door 1 is open (for example, in an open position). The door closer 4 includes a shaft member 5 , a rotating cam 6 , an interlocking member 7 , a tension spring 8 and a damper mechanism 9 .
The shaft member 5 is a columnar member that extends linearly and has a polygonal cross section (in the present embodiment, a hexagonal cross section (see FIG. 5). , the other end is inserted into the hollow portion 31, and is rotatable about the rotation axis Ax with respect to the holding member 33 fixed in the hollow portion 31 in a posture in which the central axis is aligned with the rotation axis Ax. One end of the shaft member 5 protruding upward from the suspension-side vertical frame 3 is inserted into a bearing hole (see In addition, in the door 1, a shaft member 5A (Fig. 1) similar to the shaft member 5 is also provided below the suspension side. One end of the suspension-side vertical frame 3 protruding downward engages with a bearing hole (not shown) provided in the lower support plate 103 of the pair of support plates 103. As a result, the door is opened. 1 is rotatable with respect to the door frame 100 (support plate 103), and since the shaft member 5 is engaged with the above-described bearing hole so as not to rotate about the rotation axis Ax, the door 1 is Even if it rotates, it does not rotate together with the door 1 concerned.

FIG. 4 is a side view of the rotating cam 6. FIG.
The rotating cam 6 has a cylindrical shape through which the shaft member 5 is inserted. It is rotatably held as a center. Note that the rotating cam 6 cannot rotate about the rotation axis Ax with respect to the shaft member 5 when the shaft member 5 is inserted therein. That is, when the door 1 rotates, the rotating cam 6 does not rotate together with the door 1, but relatively rotates together with the shaft member 5 with respect to the door 1. As shown in FIG.
A helical groove 61 is formed on the outer peripheral surface of the rotating cam 6 . In this embodiment, the door 1 is rotatable at an opening angle of 0° to 180°. It has a helical shape that is formed over the entire visible portion when the rotating cam 6 is viewed from the side and extends along the vertical direction. If the door 1 is rotatable at an opening angle of 0° to 90°, the groove 61 may be formed so as to cover the entire 1/4 area of the circumference of the rotary cam 6 .

The interlocking member 7 engages with the groove 61 of the rotating cam 6 and moves vertically in conjunction with the relative rotation of the rotating cam 6 with respect to the door 1 . The interlocking member 7 includes an interlocking member main body 71 , an engaging pin 72 and a connecting portion 73 .
The interlocking member main body 71 is formed of a plate extending vertically. The interlocking member main body 71 is disposed outside the hollow portion 31 and facing the door tip side wall portion 314 .
The engaging pin 72 is attached to the upper end side of the interlocking member main body 71 . Here, the door tip side wall portion 314 is provided with a guide hole 315 (see FIG. 5) that communicates between the inside and outside of the hollow portion 31 and extends in the vertical direction. The engaging pin 72 protrudes into the hollow portion 31 through the guide hole 315 and engages with the groove portion 61 .
The connecting portion 73 is attached to the lower end side of the interlocking member main body 71 and protrudes into the hollow portion 31 through the guide hole 315 .

The pull spring 8 corresponds to the biasing member according to the invention. The pull spring 8 is arranged side by side with respect to the interlocking member 7 in the hollow portion 31 . The pull spring 8 connects the connecting portion 73 and the fixing portion 34 fixed to the door tip side wall portion 314 in the hollow portion 31, and moves the interlocking member 7 downward when the interlocking member 7 moves upward. direction.

The damper mechanism 9 is arranged side by side with respect to the interlocking member 7 in the hollow portion 31 . The damper mechanism 9 is composed of an extendable cylinder damper (for example, an oil damper) or the like. The damper mechanism 9 connects the connecting portion 73 and the fixed portion 34 and applies an upward load (braking force) to the interlocking member 7 when the interlocking member 7 moves downward.

As described above, the rotating cam 6 , the interlocking member 7 , the tension spring 8 and the damper mechanism 9 are built in the door 1 . As described above, the shaft member 5 and the rotating cam 6 do not rotate together with the door 1 even when the door 1 rotates. On the other hand, since the interlocking member 7, the pull spring 8, and the damper mechanism 9 are fixed to the door 1, they rotate together with the door 1 when the door 1 rotates.

[Operation of the door closer]
5 to 7 are diagrams for explaining the operation of the door closer 4. FIG. Specifically, FIG. 5(a) is a diagram showing a state in which the door 1 is positioned at the closed position. FIG. 5(b) shows a state in which the door 1 opens the opening OP. FIG. 6 shows the state of the door closer 4 in the state shown in FIG. 5(a). FIG. 7 shows the state of the door closer 4 in the state shown in FIG. 5(b).
When the door 1 rotates from the closed position toward the open position, the interlocking member 7 moves upward as the engaging pin 72 is guided by the groove 61 . At this time, the extension spring 8 extends between the connecting portion 73 and the fixing portion 34, and thus biases the interlocking member 7 downward. In other words, the pull spring 8 urges the door 1 through the interlocking member 7 in the closing direction.
When the door 1 is released, the interlocking member 7 is moved downward by the biasing force of the pull spring 8 while the engaging pin 72 is guided by the groove 61 . Accordingly, the door 1 rotates toward the closed position. At this time, the damper mechanism 9 applies an upward load (braking force) to the interlocking member 7 . In other words, the damper mechanism 9 applies a load (brake force) in the opening direction to the door 1 via the interlocking member 7 when the door 1 rotates in the closing direction.
From the above, when the door 1 is rotated toward the open position and the hand is released from the door 1, the door 1 self-closes due to the biasing force of the pull spring 8, and the load applied from the damper mechanism 9 ( (brake force) slowly self-closes.

(Other embodiments)
Although the embodiments for carrying out the present invention have been described so far, the present invention should not be limited only to the above-described embodiments.
In the embodiment described above, only one door closer 4 is provided to correspond to the upper support plate 103 of the pair of support plates 103, but the present invention is not limited to this. Of the pair of support plates 103, only one door closer 4 may be provided corresponding to the lower support plate 103, or two door closers 4 may be provided corresponding to both of the pair of support plates 103. .

In the above-described embodiment, the door 1 is configured as an outset type door. You can configure it with
In the above-described embodiment, the door 1 is configured as a center hinge type door. may be located at a position deviated from the center of the door 1 in the prospective direction.

FIG. 8 is a diagram showing a modification of this embodiment. Specifically, FIG. 8 is a diagram corresponding to FIG. 4 and showing a modification of the groove 61 formed in the cylindrical cam 6. As shown in FIG.
In Embodiment 1 described above, the door 1 is configured as an outward-opening hinged door type door, but is not limited to this, and may be configured as an inwardly-opened hinged door type door. door.
Here, the door 1 is a swing door type door that opens inwards and outwards (for example, the opening angle at the closed position: 0°, the opening angle at the outward opening position: 90°, and the opening angle at the inward opening position: -90°). , the groove 61 formed in the cylindrical cam 6 may be changed to a groove 61A shown in FIG.
That is, two grooves 61A are provided, covering the entire 1/2 area of the entire circumference of the rotating cam 6 (the entire visible portion when the rotating cam 6 is viewed from the side as shown in FIG. 8). is formed over Moreover, the two grooves 61A have opposite spiral shapes extending upward from the one ends and communicating with each other at one ends.

In the embodiment described above, the door frame 100 was exemplified as the support member according to the present invention, but the present invention is not limited to this. For example, a configuration in which the pair of support plates 103 are directly attached to the opening OP (a configuration in which the hanger-side vertical frame 101 and the like are omitted) may be adopted. In this configuration, the support plate 103 corresponds to the support member according to the invention.
Although the interlocking member 7 engages with the grooves 61 and 61A of the rotating cam 6 in the above-described embodiment and the modification shown in FIG. 8, the present invention is not limited to this. For example, the rotation cam 6 may be omitted, grooves similar to the grooves 61 and 61A may be provided in the shaft member 5, and the interlocking member 7 may engage with the grooves.
In the above-described embodiment, the tension spring 8 is used as an example of the biasing member according to the present invention. However, other biasing members such as rubber may be used.

A door closer according to the present invention is a door closer that is rotatably supported by a support member attached to an opening of a building and is used for a door that opens and closes the opening by rotating, and is attached to the support member. and a shaft member that allows the door to rotate with respect to the support member, and a shaft member that is vertically movably attached to the door and rotates the shaft member relative to the door when the door is opened and closed. and an urging member that connects the interlocking member and the door and urges the door in a closing direction via the interlocking member. .

In the present invention, the door closer includes the above-described shaft member, interlocking member, and biasing member. For this reason, if the door closer is mounted on the door, the door will self-close due to the biasing force of the biasing member when the door is released after the door is opened.
That is, the door closer according to the present invention does not require a conventional link member, so that it is possible to reduce the size of the door closer.

Further, according to the present invention, in the door closer described above, the biasing member is a tension spring.
By the way, it is also conceivable to use a torsion spring instead of the extension spring, store elastic energy in the torsion spring by relative rotational movement of the shaft member with respect to the door, and use the elastic energy to provide the self-closing function of the door. However, in this configuration, the wire diameter of the torsion spring needs to be increased in order to smoothly close the door, which hinders downsizing of the door closer.
In contrast, in the present invention, the rotational motion of the shaft member relative to the door is converted into linear motion of the interlocking member, and the biasing force of the pull spring provides the self-closing function of the door. For this reason, compared with the configuration using the torsion spring described above, it is not necessary to increase the wire diameter of the extension spring more than necessary, and the size of the door closer can be reduced.

The door closer of the present invention further comprises a rotating cam that is attached to the shaft member and rotates relatively to the door together with the shaft member in response to the rotation of the door, wherein the outer circumference of the rotating cam is The surface is formed with a groove that engages with the interlocking member and moves the interlocking member vertically in conjunction with the relative rotation of the rotating cam with respect to the door. The surface has a helical shape extending in the vertical direction.
According to the present invention, since the above-described groove is formed on the outer peripheral surface of the rotating cam, it is possible to construct a door closer that corresponds to an outward-opening or inward-opening hinged door.

The door closer of the present invention further comprises a rotating cam that is attached to the shaft member and rotates relatively to the door together with the shaft member in response to the rotation of the door, wherein the outer circumference of the rotating cam is The surface is formed with two grooves that engage with the interlocking member and move the interlocking member vertically in conjunction with the relative rotation of the rotating cam with respect to the door. One end of the outer peripheral surface of the rotating cam communicates with each other, and has a reverse helical shape extending upward or downward from the one end.
According to the present invention, since the two grooves described above are formed on the outer peripheral surface of the rotating cam, it is possible to construct a door closer corresponding to a hinged door that opens inwards and outwards.

Further, in the door closer of the present invention, the damper connects the interlocking member and the door, and applies a load in the opening direction to the door via the interlocking member when the door rotates in the closing direction. It is characterized by further comprising a mechanism.
In the present invention, the door closer includes the above-described damper mechanism in addition to the above-described shaft member, interlocking member, and biasing member. Therefore, if the door closer is mounted on the door, when the door is opened and the hand is released from the door, the door is self-closed by the biasing force of the biasing member, and the load (braking force) applied from the damper mechanism is applied. ) allows the door to slowly self-close.

Further, a door according to the present invention is a door that is rotatably supported by a support member attached to an opening of a building and opens and closes the opening by rotating, and includes the door closer described above. Characterized by
Since the door according to the present invention includes the door closer described above, it has the same functions and effects as the door closer described above.

Further, according to the present invention, in the door described above, the interlocking member and the biasing member are arranged side by side in the vertical direction.
By the way, in the door, the vertical frame or the like has a sufficiently wide space in the vertical direction. For this reason, if the interlocking member and the biasing member are vertically arranged side by side as in the present invention, the space inside the door (for example, inside the vertical frame) can be effectively used, and the size of the door can be increased by the door closer. large size) can be avoided.

Further, according to the present invention, in the door described above, the interlocking member and the biasing member are built in the door.
According to the present invention, since the interlocking member and the biasing member are built in the door, the door closer can be hidden and the design of the door can be improved. In addition, since each part of the door closer is built in the door in advance, it is possible to omit the work of attaching each part at the construction site of the door.

REFERENCE SIGNS LIST 1 door 4 door closer 5 shaft member 6 rotating cam 7 interlocking member 8 pull spring (biasing member) 9 damper mechanism 61, 61A groove 100 door frame (supporting member) OP opening

Claims (6)

A door that is rotatably supported by a support member attached to an opening of a building and that rotates to open and close the opening,
a vertical frame having a hollow portion;
a door closer;
The door closer is
a shaft member that is inserted into the hollow portion, is arranged in a state that a portion protrudes from the hollow portion, engages with the support member, and enables the door to rotate with respect to the support member;
an interlocking member attached so as to be vertically movable with respect to the door and moving vertically in conjunction with the relative rotation of the shaft member with respect to the door when the door is opened and closed;
a biasing member disposed in the hollow portion, connecting the interlocking member and the door, and biasing the door in a closing direction via the interlocking member ;
The wall portion that constitutes the hollow portion includes:
A guide hole is provided which communicates between the inside and outside of the hollow portion and extends vertically,
The interlocking member is
an interlocking member main body disposed outside the hollow portion; a first connecting portion connecting between the interlocking member main body and the shaft member through the guide hole; and the interlocking member through the guide hole. A second connecting portion connecting between the main body and the urging member is provided, and can move up and down while being guided by the guide hole.
A door characterized by: The biasing member is
2. The door of claim 1, wherein the door is an extension spring. The door closer is
further comprising a rotating cam attached to the shaft member and rotating relatively to the door together with the shaft member in response to rotation of the door;
On the outer peripheral surface of the rotating cam,
a groove that engages with the interlocking member and moves the interlocking member vertically in conjunction with the relative rotation of the rotating cam with respect to the door;
The groove is
3. The door according to claim 1, wherein the outer peripheral surface of the rotating cam has a helical shape extending in the vertical direction. The door closer is
further comprising a rotating cam attached to the shaft member and rotating relatively to the door together with the shaft member in response to rotation of the door;
On the outer peripheral surface of the rotating cam,
two grooves are formed to engage the interlocking member and move the interlocking member vertically in conjunction with the relative rotation of the rotating cam with respect to the door;
The two grooves are
3. The rotating cam according to claim 1 or 2, wherein the outer peripheral surface of the rotating cam has opposite ends that are in communication with each other and extend upward or downward from the one end. door. The door closer is
A damper mechanism that connects the interlocking member and the door and applies a load in the opening direction to the door via the interlocking member when the door rotates in the closing direction. 5. The door according to any one of 1-4. The interlocking member and the biasing member are
The door according to any one of claims 1 to 5, wherein the doors are vertically arranged side by side.

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