JP2006348652A - Fittings - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide fittings capable of stabilizing a closing velocity of a door body. <P>SOLUTION: A thermal insulating means formed of a cover material 20 covering the surface of a closer body section 11 of a door closer 10 is provided, heat conduction from the outside to a hydraulic damper inside of the closer body section 11 is cut off by the cover material 20 to control a viscous variation of an oil in the hydraulic damper, constant damping force can be exhibited to the hydraulic damper, and the closing velocity of the door body can be stabilized with a proper velocity in spite of the temperature change around the door closer 10. Accordingly, such a closing failure that the door body is closed at a faster closing velocity or not completely closed can be prevented, and controllability of the front door can be finely maintained. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  More particularly, the present invention relates to a frame body provided on a building outer wall, a door body that is supported by the frame body so as to be opened and closed, and a door body closing device that urges the door body in a closing direction. It relates to the fittings provided.

A door body closing device (so-called door closer) that urges a door body in a closing direction to close the door body in a fitting such as an entrance door is known (for example, see Patent Document 1).
As this door closer, a metal closer main body fixed to the door body, a rotating shaft projecting from the closer body, a link mechanism connected to the rotating shaft and the door frame, a rotating shaft built in the closer body. Generally, a structure is provided that includes a spring that urges rotation and a hydraulic damper that is built in the closer body and attenuates the rotational speed of the rotating shaft (the closing speed of the door body). When the door is opened, the rotating shaft is rotated against the biasing force of the spring via the link mechanism, and if the door opening operation is stopped, the rotating shaft biased by the spring biasing force. The door body is closed by the rotational force (torque). Furthermore, by applying a damping force of the hydraulic damper in proportion to the rotational speed of the rotary shaft, the door body is prevented from closing at a speed exceeding the proper closing speed.

JP 2000-186460 A

However, in the conventional door closer described in Patent Document 1, the viscosity of the oil in the hydraulic damper changes due to the temperature change around the closer body, and the damping force to be applied varies, and the closing speed of the door body is reduced. There is a problem that it is difficult to maintain properly.
That is, for example, when there is a difference between the indoor temperature (room temperature) and the outside temperature, the viscosity of the oil in the hydraulic damper changes after opening the door for several minutes, thereby stabilizing the door closing speed. There are things that do not.

  The objective of this invention is providing the fitting which can aim at stabilization of the closing speed of a door body.

  The joinery of the present invention is a joinery provided with a frame body provided on a building outer wall, a door body supported by the frame body so as to be freely opened and closed, and a door body closing device for biasing the door body in a closing direction. The door body closing device includes an apparatus main body portion fixed to an indoor side surface of the door body or an indoor position of the frame body, an urging means and a hydraulic damper incorporated in the apparatus main body portion, and A shaft portion that is connected to the biasing means and the hydraulic damper and protrudes from the apparatus main body, a link mechanism having one end coupled to the shaft portion and the other end coupled to the frame body or the door body; And a heat insulating means for blocking heat conduction from the outside to the hydraulic damper.

  Here, as a heat insulation means, the cover material which covers the apparatus main body part of a door body closing apparatus may be sufficient, and the cover material which is provided inside the apparatus main body part and covers a hydraulic damper may be sufficient. Such a cover material may be in the form of covering the apparatus main body or the hydraulic damper, or may be bonded to the surface of the apparatus main body or the hydraulic damper. The heat insulating means may be a vacuum layer provided around the hydraulic damper in the apparatus main body or a heat insulating layer in which a liquid heat insulating material is sealed. Further, the heat insulating means may be a structure in which the device main body itself, the shaft portion, and the cylinder of the hydraulic damper are formed of a material having low thermal conductivity (for example, engineering plastic or ABS resin with glass fiber).

  According to the present invention described above, the heat conduction from the outside to the hydraulic damper is blocked by the heat insulating means, so that the change in the viscosity of the oil in the hydraulic damper can be suppressed and a constant damping force can be exhibited. Regardless of the temperature change around the body closing device, the closing speed of the door body can be stabilized at an appropriate speed. Therefore, even when the door body is opened for several minutes when the difference between the room temperature and the outside air temperature is large, a change in the viscosity of the oil in the hydraulic damper can be prevented, and the door closing speed can be stabilized.

Under the present circumstances, in the fitting of this invention, it is preferable that the said heat insulation means has a cover material which covers the surface of the said apparatus main-body part.
According to such a configuration, by attaching a cover material to the apparatus main body, heat conduction from the outside to the apparatus main body and the internal hydraulic damper can be suppressed. In addition, since the device body itself and the hydraulic damper do not need to have a special structure, conventional door closers can be used, manufacturing costs can be reduced, and door closers attached to existing fittings can be covered. The above-mentioned effects can be obtained by simply covering with a material.

Furthermore, in the joinery of the present invention, the cover material is formed in a substantially rectangular parallelepiped shape with one surface opened, and an opening edge of the cover material is provided with a notch through which the shaft portion is inserted. preferable.
According to such a configuration, an opening is provided on one surface of the cover material, and a notch is provided at an edge of the opening, so that the cover material is attached to the frame body and the door body. It can be easily attached to and detached from the apparatus main body, and adjustment of the urging force of the urging means and the damping force of the hydraulic damper can be easily performed by removing the cover material. Further, when the cover member is attached to the door closing device in the existing joinery, it is not necessary to remove the door closing device, and the cover member can be easily attached.

Furthermore, in the joinery of the present invention, it is preferable that the heat insulating means includes an auxiliary cover material that covers a surface of the apparatus main body at a notch position of the cover material.
According to such a configuration, by covering the surface of the device main body with the auxiliary cover material at the notch position of the cover material, the device main body of the notched portion is not exposed, and heat conduction from this portion is prevented. Therefore, the above-described effects can be realized more reliably.

Further, in the joinery of the present invention, the cover material is formed in a substantially rectangular parallelepiped shape with one surface opened, and is divided into right and left with the shaft portion interposed therebetween, and at the edge of the cover material at the division position It is preferable that a pair of notches surrounding the shaft portion from the left and right sides are provided facing each other.
According to such a configuration, the cover material is divided into left and right, and a notch surrounding the shaft portion is provided at the divided position, so that the periphery of the shaft portion protruding from the apparatus main body portion is surrounded by the cover material without a gap. And heat conduction from the outside to the apparatus main body can be further suppressed. And since the cover material can be attached to and detached from the apparatus main body, the urging force of the urging means and the damping force of the hydraulic damper can be easily adjusted as described above, and the existing door body closing device can be used. It can also be easily attached.

In the joinery of the present invention, it is preferable that the heat insulating means is configured to include a shaft cover material that covers and closely covers a portion of the shaft that protrudes from the device main body.
According to such a configuration, by covering the shaft portion protruding from the apparatus main body portion with the shaft portion cover material, heat conduction from the shaft portion that tends to become a heat bridge can be suppressed, and the hydraulic damper The heat conduction to can be further suppressed.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In the second and subsequent embodiments, the same constituent members as those described in the first embodiment and the constituent members having the same functions are denoted by the same reference numerals as those in the first embodiment. Those descriptions are omitted or simplified.

[First Embodiment]
Drawing 1 is a front view which looked at entrance door 1 which is a fitting concerning a 1st embodiment of the present invention from the room inner side. FIG. 2 is an enlarged front view showing the door closer 10 which is a door closing device provided on the entrance door 1. 3 to 5 are a side view, a perspective view, and a plan view showing the door closer 10, respectively.
In FIG. 1 to FIG. 5, the entrance door 1 is provided at a doorway (entrance or doorway) of a building such as a detached house or an apartment house, partitions the indoor space and the outdoor space of the building, and opens and closes the resident. Etc. can enter and exit, and is configured to have crime prevention by locking.

The front door 1 has an upper frame 2 and left and right vertical frames 3 and is formed into a generally rectangular shape by combining a door frame 4 as a frame fixed to the outer wall of a building and a metal plate material. 4 is configured to include a door body 5 supported to be freely opened and closed, and a door closer 10 as a door body closing device that biases the door body 5 in the closing direction.
The door closer 10 includes a closer main body (apparatus main body) 11 fixed to the indoor side surface of the door body 5, a spring (not shown) as a biasing means built in the closer main body 11, and a hydraulic damper (not shown). And a rotary shaft (shaft portion) 12 that is connected to these springs and hydraulic dampers and protrudes up and down from the closer main body 11, one end is connected to the rotary shaft 12, and the other end is the door frame 4. And a link mechanism 13 connected to each other.

  The link mechanism 13 includes a first arm 131 having one end (one end of the link mechanism 13) fixed to the rotating shaft 12 protruding upward from the closer body 11, and one end rotatable to the other end of the first arm 131. The second arm 132 is connected, and a bracket 133 (the other end of the link mechanism 13) is rotatably connected to the other end of the second arm 132 and fixed to the door frame 4. . When the door 5 is opened, the rotary shaft 12 is rotated against the biasing force of the spring via the link mechanism 13, and the spring biasing force is transmitted via the rotary shaft 12 and the link mechanism 13. By being transmitted to the door frame 4, the door body 5 is automatically closed.

The hydraulic damper has a cylinder integrally formed inside the closer body 11, a piston that is slidably provided in the cylinder and interlocks with the rotation of the rotary shaft 12, and oil sealed in the cylinder. Configured. As the rotary shaft 12 rotates, the piston moves in the cylinder against the viscous resistance of the oil, and a damping force acts. By this damping force, the rotational speed of the rotary shaft 12, that is, the opening and closing of the door body 5 is performed. The speed is controlled. According to such a door closer 10, the closing speed can be appropriately adjusted and the door body 5 can be reliably closed.
The above door closer 10 is generally commercially available and widely used in conventional doors.

In the entrance door 1 of the present embodiment, the door closer 10 is provided with a heat insulating means composed of a cover material 20 that covers the surface of the closer body 11. This heat insulation means blocks heat conduction from the outside to the hydraulic damper and suppresses a change in the viscosity of the oil in the hydraulic damper.
The cover member 20 is made of a resin containing a heat insulating material having a low thermal conductivity, and is formed in a substantially rectangular parallelepiped shape with one side (outside side surface) opened.
Here, the thermal conductivity of the heat insulating material constituting the cover member 20 is preferably 0.01 W / mK or less, and more preferably 0.005 W / mK or less.

  The cover member 20 has an upper surface portion 21, a lower surface portion 22, left and right side surface portions 23, and a front portion 24 on the indoor side, and is formed in an overall box shape having an opening 25 on the outdoor side. And in the state attached to the closer body part 11, each surface part 21,22,23,24 of the cover material 20 is in close contact with the upper and lower left and right surfaces and the indoor side surface of the closer body part 11, and the upper, lower, left and right face parts 21, The edges (opening edges) on the opening 25 side of 22 and 23 are in close contact with the door body 5.

  On the upper surface portion 21 and the lower surface portion 22 of the cover material 20, a notch 26 is formed by notching from each opening edge toward the indoor side. These notches 26 are provided for inserting the rotary shaft 12 in a state where the cover member 20 is attached to the closer body 11. And by forming the notch 26, as shown in FIGS. 3-5, the cover material 20 becomes removable from the indoor side with respect to the closer main-body part 11 fixed to the door body 5. As shown in FIG. Yes.

Furthermore, the heat insulating means in the present embodiment may be configured to include an auxiliary cover material 27 as shown in FIG. 6 and a shaft cover material 28 as shown in FIG. 7 in addition to the cover material 20. .
FIG. 6 is a perspective view showing the auxiliary cover member 27 constituting the heat insulating means. FIG. 7 is a perspective view showing the shaft cover member 28 provided in the door closer 10A. FIG. 8 is a plan view showing the door closer 10 when the auxiliary cover member 27 and the shaft cover member 28 are used.
The auxiliary cover material 27 is a plate material made of the same material as the cover material 20 and has a semicircular cutout 271 facing the cutout 26 of the cover material 20. Then, the notch 26 of the cover member 20 and the notch 271 of the auxiliary cover member 27 are made continuous so that the cover body 20 and the auxiliary cover member 27 cover the entire length of the side peripheral surface of the rotary shaft 12 of the door closer 10. The part 11 can be covered. Further, a stepped portion 272 is formed on the side edge of the auxiliary cover member 27, and a stepped portion 261 is formed on the inner edge of the notch 26 of the cover member 20, and these stepped portions 261 and 272 are engaged. By attaching the cover material 20, the auxiliary cover material 27 is prevented from being detached from the closer body 11.

  Further, the shaft cover material 28 is an annular member made of resin, and as shown in FIG. 7, is formed having an inner peripheral surface 281 and a step 282 formed on the outer peripheral surface. . Then, the shaft cover material 28 is inserted into the rotary shaft 12 with the first arm 131 of the door closer 10 removed, is attached in close contact with the outer peripheral surface of the rotary shaft 12, and is attached to the notch 26 of the cover material 20. A stepped portion 282 is engaged. Therefore, the shaft cover material 28 is prevented from being detached from the closer main body 11 and the rotating shaft 12 with the cover material 20 attached. The inner periphery of the notch 271 of the auxiliary cover member 27 is formed in a shape that engages with the step portion 282 of the shaft portion cover member 28, and the notch 271 prevents the shaft portion cover member 28 from coming off. You may make it comprise.

According to this embodiment, there are the following effects.
(1) That is, since the heat conduction from the outside to the hydraulic damper in the closer body 11 is blocked by the cover material 20, the viscosity change of the oil in the hydraulic damper is suppressed, and a constant damping force is generated by the hydraulic damper. The closing speed of the door body 5 can be stabilized at an appropriate speed regardless of the temperature change around the door closer 10. Accordingly, it is possible to prevent a closing failure such that the door body 5 is closed at a closing speed that is too fast or cannot be completely closed, and the operability of the entrance door 1 can be maintained well.

(2) Furthermore, since the heat insulating means is constituted by the cover material 20 covering the closer body 11, heat conduction can be cut off without using a special structure for the closer body 11 itself or the internal hydraulic damper. The closer main body 11 can be used and the manufacturing cost can be reduced. If the main body of the door closer attached to the existing door is covered with the cover member 20, the door can be used even in the existing door. The closing speed of the body 5 can be stabilized.

(3) Moreover, since the notch 26 is provided in the opening edge of the upper surface part 21 in the cover material 20, without removing the closer main-body part 11 and the link mechanism 13 from the door frame 4 or the door body 5, it is a cover material. 20 can be easily attached to and detached from the closer main body 11, and if the cover member 20 is removed, adjustment of the biasing force of the spring and the damping force of the hydraulic damper can be easily performed. Furthermore, even when the cover member 20 is attached to the closer main body 11 of an existing door or the like, it is not necessary to remove the closer main body 11 and the cover member 20 can be easily attached.

(4) Further, as shown in FIGS. 6 and 8, an auxiliary cover material 27 is provided on the opposite side of the notch 26 of the cover material 20 across the rotating shaft 12, and the notch 26 is formed by the auxiliary cover material 27. By covering the surface of the closer body 11 at the corresponding position, the closer body 11 at the notch 26 portion is not exposed, and heat conduction from this portion can be blocked.

(5) Also, as shown in FIGS. 7 and 8, since the shaft cover member 28 is inserted into the rotating shaft 12 protruding from the closer body 11, the rotating shaft 12 is likely to become a heat bridge. Therefore, the heat conduction to the hydraulic damper can be further suppressed, and the stabilization of the closing speed of the door body 5 can be promoted.

[Second Embodiment]
Next, 2nd Embodiment of this invention is described based on FIG. 9 and FIG.
FIG. 9 is a plan view showing a door closer 10 </ b> A provided in the entrance door according to the second embodiment. FIG. 10 is a perspective view illustrating a procedure for attaching the cover member 30 in the door closer 10A.
The door closer 10A provided on the entrance door of the present embodiment is different from the door closer 10 of the first embodiment only in the configuration of the cover material, and the other configurations are substantially the same as those of the first embodiment. is there. Hereinafter, differences will be described.

  As shown in FIG. 9, the cover member 30 has an upper surface portion 31, a lower surface portion 32, left and right side surface portions 33, and a front surface portion 34 on the indoor side, and an overall substantially rectangular solid shape having an opening 35 on the outdoor side. Is divided into left and right sides with the rotary shaft 12 in between. That is, the cover member 30 is divided into a first cover member 30A on the right side and a second cover member 30B on the left side in FIG. 9, and the upper surface portion 31 and the lower surface portion 32 are the first and second cover materials. 30A and 30B are provided separately, and the front portion 34 is provided on the first cover member 30A. A pair of semicircular cutouts 36 that surround the rotary shaft 12 from both the left and right sides are opposed to the side end face 31A, which is a dividing position in the upper face 31 and the lower face 32 of the first and second cover members 30A and 30B. Is formed. By forming these notches 36, the first and second cover members 30 </ b> A and 30 </ b> B are attached to the closer main body 11 fixed to the door body 5 as shown in FIGS. 9 and 10. It is detachable by sliding from both left and right sides.

According to such an embodiment, in addition to the effects (1), (2), and (5) described above, the following effects can be obtained.
(6) That is, since the cover material 30 is divided into left and right, and the pair of notches 36 surrounding the rotation shaft 12 are provided on the end surface 31A at the division position, the rotation shaft 12 protruding from the closer body 11 is provided. Can be surrounded by the cover member 30 without a gap, and heat conduction from the outside to the closer body 11 can be further suppressed. And since the cover material 30 is detachable with respect to the closer main-body part 11, it can adjust easily the urging | biasing force of a spring and the damping force of a hydraulic damper similarly to the effect of above-mentioned (3), and existing. The cover member 30 can be easily attached to the door closer.

Note that the present invention is not limited to the above-described embodiments, and includes other configurations that can achieve the object of the present invention, and includes the following modifications and the like.
For example, in each of the above-described embodiments, the cover materials 20 and 30 that cover the surface of the closer body 11 are employed as the heat insulating means, but the heat insulating means of the present invention is not limited to such cover materials 20 and 30.
That is, the heat insulating means may be configured with a structure in which a heat insulating material such as a heat insulating sheet is fixed to the surface of the closer body 11 via an adhesive or a structure in which the hydraulic damper in the closer main body 11 is covered with a heat insulating material. Good. Further, the heat insulating means may be configured by a structure in which a vacuum layer is provided around the hydraulic damper in the closer main body 11 or a structure in which a heat insulating layer in which a liquid heat insulating material is sealed is provided around the hydraulic damper. Furthermore, the closer main body 11, the rotary shaft 12, the cylinder of the hydraulic damper, and the like may be formed of a heat insulating material, that is, a material having low thermal conductivity. Examples of such a material having low thermal conductivity include engineering plastics that can easily secure a predetermined strength, ABS resin containing glass fibers, and the like.

Moreover, in each said embodiment, although the closer main body part 11 of the door closer 10 was fixed to the door body 5, and the bracket 133 which is the other end of the link mechanism 13 was fixed to the door frame 4, it is not restricted to this, A closer main body part 11 may be fixed to the door frame 4 and the other end of the link mechanism 13 may be connected to the door body 5.
Furthermore, although the door closer 10 according to each of the above embodiments corresponds to the door body 5 of the outward opening type, it may be a door closer corresponding to the door body 5 of the inner opening type. In this case, only the attachment structure of each arm 131, 132 of the link mechanism 13 is different, and the configuration of the above embodiment can be adopted as the other configuration.

In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations.
Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

It is the front view which looked at the fitting which concerns on 1st Embodiment of this invention from the room inner side. It is a front view which expands and shows the door body closure apparatus provided in the said fitting. It is a side view which shows the said door body closing device. It is a perspective view which shows the said door body closing device. It is a top view which shows the said door body closing device. It is a perspective view which shows the auxiliary | assistant cover material provided in the said door body closing device. It is a perspective view which shows the axial part cover material provided in the said door body closing device. It is a top view which shows the door body closing apparatus provided with the said auxiliary | assistant cover material and the axial part cover material. It is a top view which shows the door body closing device provided in the fitting which concerns on 2nd Embodiment of this invention. It is a perspective view explaining the attachment procedure of the cover material in the said door body closing device.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 4 ... Door frame which is a frame body, 5 ... Door body, 10 ... Door closer which is a door body closing apparatus, 11 ... Closer body part which is an apparatus main body part, 12 ... Rotating shaft which is a shaft part, 13 ... Link mechanism, 20 , 30 ... Cover material which is a heat insulating means, 26, 36 ... Notch, 27 ... Auxiliary cover material, 28 ... Shaft cover material.

Claims (6)

A fitting provided with a frame body provided on the outer wall of the building, a door body that is supported by the frame body so as to be opened and closed, and a door body closing device that biases the door body in a closing direction,
The door closing device includes an apparatus main body fixed to the indoor side surface of the door or an indoor position of the frame, an urging means and a hydraulic damper built in the apparatus main body, and the urging means. And a shaft portion that is connected to the hydraulic damper and protrudes from the apparatus main body, a link mechanism having one end coupled to the shaft portion and the other end coupled to the frame body or the door body, and the hydraulic damper. And a heat insulating means for blocking heat conduction from the outside to the joinery.   The joinery according to claim 1, wherein the heat insulating unit includes a cover material that covers a surface of the apparatus main body.   The fitting according to claim 2, wherein the cover material is formed in a substantially rectangular parallelepiped shape with one surface opened, and a notch through which the shaft portion is inserted is provided at an opening edge of the cover material.   The joiner according to claim 3, wherein the heat insulating means includes an auxiliary cover material that covers a surface of the apparatus main body at a notch position of the cover material.   The cover material is formed in a substantially rectangular parallelepiped shape with one surface opened, and is divided into left and right sides with the shaft portion interposed therebetween, and at the edge of the cover material at the divided position, the shaft portion is viewed from both the left and right sides. The joinery according to claim 2, wherein a pair of surrounding notches are provided to face each other.   The said heat insulation means is a fitting in any one of Claims 2-5 comprised by having the axial part cover material which closely_contact | adheres the part which protruded from the said apparatus main-body part in the said axial part.

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