JP2001288956A - Door closer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door closer which, having a simple structure, is easily fitted or dismounted. SOLUTION: A door closer 1 is provided to close a door 21 of a building 2, and comprises an elastic body 11 and a fixing member 12 adjoining both end parts of the elastic body 11, respectively. The elastic body 11 comprises an elasticity adjusting part 13 for adjusting the entire elastic force. The elastic body 11 comprises a flat rubber and is fitted to the building 2 through the fixing member 12. One of the fixing member 12 is fixed to the door 21 while the other to a door frame 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door closer mounted on a building to close a door.

[0002]

2. Description of the Related Art Conventionally, as a door closer attached to close a door of a building, for example, Japanese Unexamined Patent Publication No.
JP-A-5-23245 (prior art 1), JP-A-56-1
No. 42979 (prior art 2) and JP-A-56-28
No. 981 (prior art 3). The door closers of the prior arts 1 and 2 have fixed portions at both ends, respectively, and are mounted between the door and the door frame. A link is provided between the fixed portions, and the link has a spring provided so that the door can be automatically closed.

According to these door closers, the door can be maintained in an open state, and when the door is closed to a certain position, the door can be automatically closed thereafter. In the door closer according to the prior art 3, a spring is provided at a hinge portion of the door. After the door is opened, the door can be closed by the spring.

[0004]

However, the structure of the conventional door closer is generally complicated and expensive. For this reason, for example, it is hardly used in the interior door of a general house. In addition, it is difficult to install and remove the door after the door has been installed. For this reason, it is almost always done at the same time when the door is installed.

The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a door closer which has a simple structure and can be easily attached and detached.

[0006]

According to the first aspect of the present invention, there is provided a door closer for closing a door in a building, wherein the door closer is adjacent to an elastic body and both ends of the elastic body. The door closer includes a fixed member provided, and the elastic body has an elastic adjustment portion for adjusting the overall elastic force.

The most remarkable point in the present invention is that the door closer includes the elastic member and the fixing member, and the elastic member has the elastic adjustment portion. Further, the door closer is configured with a small number of parts.

Next, the function and effect of the present invention will be described.
The door closer according to the present invention has the above-mentioned elastic body, and fixing members provided adjacent to both ends of the elastic body are respectively fixed to the door and the door frame. That is, the above-mentioned elastic body is mounted so as to bridge between the door and the door frame. Therefore, when the door is opened, the distance between the fixing member fixed to the door and the fixing member fixed to the door frame increases. Therefore, the elastic body is stretched. At this time, the elastic body has an elastic force acting to return to the original length.

Then, when the user releases his / her hand from the door, the door is pulled to the closed position in order to return the elastic body to its original length. Therefore, the door can be easily closed by the door closer.

[0010] The door closer has an elasticity adjusting portion for adjusting the overall elasticity. Therefore, by adjusting the elasticity adjusting portion, the force for closing the door and the force required for opening the door can be easily adjusted.

Further, the door closer can be constructed with a small number of parts as described above. for that reason,
It is very easy to realize a structure for automatically closing the door. Therefore, the door closer can be easily attached even after the door is completed. The door closer can be easily removed when it is not necessary, for example, when the door is intentionally opened. Therefore, it can be said that the door closer can be arbitrarily attached and detached.

Further, since the door closer can be realized with an extremely simple structure, it is inexpensive, and can be attached to, for example, an indoor door of a general house as a service product. Also, after the door is constructed, it is possible to easily respond to the demand after the landlord has lived.

As described above, according to the present invention, it is possible to provide a door closer which has a simple structure and can be easily attached and detached.

Next, as in the second aspect of the present invention, it is preferable that the elastic adjustment portion is a fixing tool provided on the elastic body itself to adjust a length of the elastic body in a free state. . As a result, it is possible to easily adjust the elastic force required for opening and closing the door, and furthermore, it is possible to configure a door closer having a simpler structure and easy to install and remove. Further, since the elasticity adjusting portion is provided on the elastic body itself, the elasticity can be adjusted without increasing the number of parts.

Next, as in the third aspect of the present invention, the elastic adjustment section may be provided at at least one end of the elastic body. As a result, it is possible to easily adjust the elastic force required for opening and closing the door, and furthermore, it is possible to configure a door closer having a simpler structure and easy to install and remove.

Next, it is preferable that the elastic body is made of rubber. As a result, it is possible to easily adjust the elastic force required for opening and closing the door, and furthermore, it is possible to configure a door closer having a simpler structure and easy to install and remove.

Next, a fifth aspect of the present invention is a door closer for closing a door in a building, wherein the door closer is adjacent to an elastic body and both ends of the elastic body, respectively. The door closer is provided with a fixing member provided, and the fixing member has an elasticity adjusting portion for adjusting the overall elastic force of the elastic body.

In the present invention, the elastic adjustment section is provided on the fixing member. Therefore, even when it is not possible to provide an elasticity adjusting portion on the elastic body itself, the elasticity can be adjusted without increasing the number of parts. Also,
In addition, the same functions and effects as the first aspect of the invention can be obtained.

Next, as in the sixth aspect of the present invention, the elastic body is preferably made of rubber. As a result, it is possible to easily adjust the elastic force required for opening and closing the door, and furthermore, it is possible to configure a door closer having a simpler structure and easy to install and remove.

Next, it is preferable that the elastic body is a spring. As a result, it is possible to easily adjust the elastic force required for opening and closing the door, and furthermore, it is possible to configure a door closer having a simpler structure and easy to install and remove. In addition, by using springs with various elastic forces,
The strength of the elastic force can be selected in advance.

An eighth aspect of the present invention is a door closer attached to a building for closing a door, the door closer being adjacent to an elastic body and both ends of the elastic body, respectively. The door closer comprises a fixing member provided.

When it is not necessary to adjust the force required to close the door and the force required to open the door, the elastic adjustment section can be omitted as in the present invention. In this case, the elastic body and the fixing member can be easily manufactured. In addition, the same operation and effect as the first aspect of the invention can be obtained.

Next, as in the ninth aspect of the present invention, the elastic body is preferably made of rubber. As a result, it is possible to easily adjust the elastic force required for opening and closing the door, and furthermore, it is possible to configure a door closer having a simpler structure and easy to install and remove.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 A door closer according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the door closer 1 in this example is a door closer 21 in a building 2.
Attached to close. Door closer 1
It comprises an elastic body 11 and fixing members 12 provided adjacent to both ends of the elastic body 11, respectively. And the elastic body 11
Is an elastic adjuster 13 for adjusting the overall elastic force.
have. One of the fixing members 12 is the door 2.
1 and the other is fixed to a door frame 22.

The details will be described below. FIG. 2 (a),
As shown in (b), the elastic body 11 is made of flat rubber, and the elastic body 11 is attached to the building 2 via the fixing member 12. The fixing member 12 is fixed to the door 2 by a fixing tool 121 such as a screw or a nail.
1 or the door frame 22. The elasticity adjusting section 13 is a fixture 131 for adjusting the length of the elastic body 11 in a free state. The fixture 131 is formed of a magic tape (registered trademark). This magic tape is provided in a pair at both ends of the elastic body 11. The elastic body 11 is attached to the building 2 by looping around the respective fixing members 12 attached to the door 21 and the door frame 22.

For this reason, the elastic body 1 is formed with the above-mentioned magic tape.
The length of the elastic body 11 can be easily adjusted by attaching or separating both ends of the elastic body 11. As shown in FIGS. 3 (a) and 3 (b), the fixing device 131 has a pair of claw 132 at one end and a snap ring 133 at the opposite end instead of the magic tape. A hook may be used.

Next, the operation and effect of this embodiment will be described. The door closer 1 according to the present embodiment has the elastic body 11, and fixing members 12 provided adjacent to both ends of the elastic body 11 are fixed to the door 21 and the door frame 22, respectively. That is, the elastic body 11 comprises the door 21 and the door frame 2.
It is attached by being bridged between the two. Therefore, when the door 21 is opened, the fixing member 1 fixed to the door 21
The distance between the fixing member 12 and the fixing member 12 fixed to the door frame 22 increases. Therefore, the elastic body 11 is stretched. At this time, an elastic force acting to return to the original length is acting on the elastic body 11.

Then, when the hand is released from the door 21, the elastic body 11 attempts to return to the original length.
1 is pulled to the closed position. Therefore, the door 21 can be easily closed by the door closer 1.

The door closer 1 has an elasticity adjusting portion 13 for adjusting the overall elasticity. Therefore, by adjusting the elasticity adjusting section 13, the door 2
1 can easily adjust the closing force and the force required when the door 21 is opened.

Further, the door closer 1 can be constituted by a small number of parts as described above. Therefore, a structure in which the door 21 is automatically closed can be realized extremely easily. Therefore, the door closer 1 can be easily attached even after the construction of the door 21 is completed. The door closer 1 can be easily removed when it is not necessary, for example, when the door 21 is intentionally opened. Therefore, it can be said that the door closer 1 can be arbitrarily attached and detached.

Since the door closer 1 can be realized with a very simple structure, it is inexpensive and can be attached as a service product to, for example, an indoor door of a general house. Also, after the door is constructed, it is possible to easily respond to the demand after the landlord has lived.

Incidentally, as shown in FIG.
May be a fixing member 120 having a height slightly larger than the width of the door 21. In this case, it is possible to prevent the elastic body 11 from interfering with the door 21 or the door frame 22 when the door 21 is opened by about 90 degrees.

Embodiment 2 In this embodiment, as shown in FIGS. 5 (a) and 5 (b), the elastic body 11 is made of a round rubber, and the elastic adjustment portion 13 is fixed to the door 21. It is provided in the member 122. The other fixing member 123 is a screw having a hooking ring. At both ends of the elastic body 11, there are mounting portions 111 for attaching the elastic body 11 to the fixing members 122 and 123. Further, the elasticity adjusting section 13 is formed by providing a plurality of holes in the fixing member 122. Other configurations are the same as those of the first embodiment.

In this embodiment, the elasticity adjusting section 13 is provided on one of the fixing members 122. Therefore, even when the elastic body 11 itself cannot be provided with the elasticity adjuster 13,
The elastic force can be adjusted without increasing the number of parts. In addition, the same functions and effects as those of the first embodiment can be obtained.

Incidentally, as shown in FIG.
May be a spring 112. And this spring 112
Is preferably housed in a soft tube 113 so as not to damage the door 21 and the door frame 22. In this case, the strength of the elastic force can be selected in advance by using the springs 112 having various elastic forces.

Embodiment 3 In this embodiment, as shown in FIGS. 7A and 7B, the elastic body 11 is made of flat rubber, and fixed members 124, 126 are provided at both ends of the elastic body 11. Has a metal or plastic ring 114 for attachment to the device. The fixing member 124 has an adjusting tool 125 having a U-shaped tip, and the adjusting tool 125 plays the role of the elastic adjustment section 13. And this adjusting tool 12
5 can be adjusted to adjust the elastic force of the elastic body 11.

The tip of the fixing member 126 is formed in a U-shape, similarly to the adjusting tool 125. Then, the adjusting tool 125 and the fixing member 126 are connected to the ring 11 respectively.
4 can be easily attached.
The rings 114 are provided at both ends of the elastic body 11 by sewing the elastic body 11. Other configurations are the same as those of the first embodiment.

In this embodiment, the same operation and effect as those of the first embodiment can be obtained. As shown in FIG. 8, the elastic body 11 may have metal or plastic fittings 115 attached to both ends thereof instead of the ring 114.

Embodiment 4 In this embodiment, as shown in FIGS. 9A and 9B, the elastic body 11 is made of flat rubber, and is attached to the fixing members 127 at both ends of the elastic body 11. Or a metal or plastic fitting 116 is attached. Also,
The attachment 116 has a plurality of holes, and the plurality of holes play a role of the elasticity adjusting unit 13. In addition, the fixing member 127 has a U-shaped portion 128, so that the above-mentioned attachment 116 can be easily attached. Other configurations are the same as those of the first embodiment. In this embodiment, the same operation and effect as those of the first embodiment can be obtained.

Embodiment 5 In this embodiment, as shown in FIGS. 10 (a) and 10 (b),
The elastic body 11 in the third embodiment and the fixing member 127 in the fourth embodiment are used. Further, the elastic body 11 and the fixing member 127 do not have the elasticity adjusting section 13. Other configurations are the same as those of the first embodiment.

When it is not necessary to adjust the closing force of the door 21 and the force required when the door 21 is opened, the elastic adjustment section 13 can be omitted as in this embodiment. In this case, the elastic body 11 and the fixing member 127 can be easily manufactured. In addition, the same functions and effects as those of the first embodiment can be obtained.

[0042]

As described above, according to the present invention, it is possible to provide a door closer which has a simple structure and can be easily attached and detached.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a door closer attached to a building in a first embodiment.

FIGS. 2A and 2B are views showing a door closer according to the first embodiment, wherein FIG. 2A is a front view and FIG.

FIGS. 3A and 3B are diagrams showing an elastic body when a hook is used for an elasticity adjusting unit according to the first embodiment; FIG.
Front view.

FIG. 4 is an explanatory view showing a door closer attached to a building when another fixing member is used for a door frame in the first embodiment.

FIGS. 5A and 5B are views showing a door closer according to the second embodiment, wherein FIG. 5A is a front view and FIG.

FIG. 6 is an explanatory view showing another elastic body according to the second embodiment.

FIGS. 7A and 7B are views showing a door closer according to a third embodiment, wherein FIG. 7A is a front view and FIG.

FIG. 8 is an explanatory view showing another elastic body in the third embodiment.

FIG. 9 is a view showing a door closer according to a fourth embodiment, in which (a) is a front view and (b) is a plan view.

FIGS. 10A and 10B are views showing a door closer according to a fifth embodiment, wherein FIG. 10A is a front view and FIG.

[Explanation of symbols]

 1. . . 10. door closer, . . Elastic body, 12. . . 12. fixing member; . . Elasticity adjuster, 131. . . Fixing device, 2. . . Building, 21. . . Door, 22. . . Door frame,

Claims (9)

[Claims] Claims 1. A door closer for closing a door in a building, the door closer comprising:
A door comprising an elastic body and fixing members provided adjacent to both ends of the elastic body, wherein the elastic body has an elasticity adjusting portion for adjusting the overall elasticity of the door. Closer. 2. The elastic adjustment section according to claim 1, wherein
A door closer which is provided on the elastic body itself and adjusts a length of the elastic body in a free state. 3. The elastic adjustment section according to claim 1, wherein
A door closer provided on at least one end of the elastic body. 4. The method according to claim 1, wherein:
The above-mentioned elastic body is rubber, The door closer characterized by the above-mentioned. 5. A door closer for closing a door in a building, the door closer comprising:
An elastic body and a fixing member provided adjacent to both ends of the elastic body, and the fixing member has an elastic adjustment portion for adjusting the overall elastic force of the elastic body. And door closer. 6. The door closer according to claim 5, wherein said elastic body is rubber. 7. The door closer according to claim 5, wherein the elastic body is a spring. 8. A door closer for closing a door in a building, the door closer comprising:
A door closer comprising an elastic body and fixing members provided adjacent to both ends of the elastic body. 9. The door closer according to claim 8, wherein said elastic body is rubber.