JP7229903B2 - elevator door - Google Patents

Description

TECHNICAL FIELD The present invention relates to any one of a plurality of elevator doors formed by a plurality of independent sliding doors for opening and closing an entrance between an elevator car and a landing, and opening and closing operations so that the car side and the landing side can be kept facing each other. .

Patent Literature 1 discloses an elevator landing door that can suppress the temperature rise on the back side with a simple configuration. Specifically, a landing doorway formed by a landing three-sided frame erected in an elevator landing and the floor of the landing is opened and closed by a landing door provided on the hoistway side of the landing doorway. In order to prevent a fire that breaks out on one floor from spreading to other floors along the hoistway, fire resistance and heat insulating properties have been improved in the landing door device having the landing door as a main part. It is.

In recent years, in addition to preventing fire from spreading to other floors along the hoistway, depending on the safety standards of each country, after a fire breaks out in a building, it must remain in the elevator car for a specified period of time. It is obligatory to ensure the safety of the occupants who have been tested. It is desirable to realize a heat resistance function that complies with the safety standard with a simpler structure and ease of assembly.

WO2008/010271

The surface temperature on the back side of the landing door is transmitted linearly from the surface (heated surface) of the landing door. In conventional hall door devices, heat transfer from the front surface of the hall door to the back plate on the back side through the heat insulating member and heat transfer (heat bridge) to the back plate through the door panel, reinforcing plate, etc. put away. Therefore, in the conventional landing door device, the door panel that forms the outer shape of the landing door has a substantially rectangular cross-sectional shape. There was a problem that the

In addition, since the heat insulating member is interposed between the front plate and the back plate of the landing door, it is possible to suppress the surface temperature of the back side of the landing door. There was also a problem that the structure was complicated. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and aims to improve heat insulation to suppress temperature rise in the car, reduce overlapping of sheet metal members, and reduce the thickness of the door. To provide an elevator door simplified and easily assembled.

In order to solve the above-mentioned problems, there is provided an elevator door formed of a plurality of sliding doors that open and close independently in a doorway between an elevator car and a hall so that they can maintain facing each other, and the sliding doors serve as outer skin frames of the sliding doors. A flat box-shaped door panel comprising: a sheet metal door panel capable of forming a flat box-shaped space with a predetermined thickness; a rectangular parallelepiped heat insulating member that can be fitted into the flat box-shaped space; The volume ratio of heat insulating materials to the volume of the space is set to 95% or more.

ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide an elevator door that is easy to assemble by improving the heat insulating property to suppress the temperature rise in the car, reducing the overlapping of sheet metal members, simplifying the door without thickening it, and facilitating assembly.

BRIEF DESCRIPTION OF THE DRAWINGS It is plane sectional drawing which shows the elevator door which concerns on Example 1 of this invention. FIG. 1B is a cross-sectional plan view showing an elevator door according to a comparative example with respect to FIG. 1A; It is the longitudinal cross-sectional view which cut the vertical plane of the depth direction of the elevator door which concerns on Example 2 of this invention. FIG. 2B is a vertical cross-sectional view of the elevator door according to the comparative example with respect to FIG. 2A cut along a vertical plane in the depth direction; 4 is a flow chart showing a procedure of an elevator door assembling method according to Embodiments 1 and 2 of the present invention;

An embodiment will be described below with reference to the drawings. The structure of the elevator door according to the first embodiment of the present invention will be described using FIGS. 1A and 1B, the structure of the elevator door according to the second embodiment of the present invention will be described using FIGS. 2A and 2B, and FIG. will be used to explain the procedure of the elevator door assembling method according to the first and second embodiments of the present invention.

1A is a cross-sectional plan view showing an elevator door according to Embodiment 1 of the present invention. FIG. FIG. 1B is a cross-sectional plan view showing an elevator door according to a comparative example with respect to FIG. 1A. In FIGS. 1A and 1B, the upper side is the car side and the landing side, and the front side is exposed, but one of the independent sliding doors is exposed. The lower side is the back side that is not exposed. The direction indicates the door pocket side M, respectively.

An elevator is provided with an elevator door 1 for opening and closing an entrance between a car and a landing. Independent sliding doors are formed on the car side and the landing side. Each sliding door opens and closes in such a manner that the car side and the hall side can be kept facing each other. That is, the independent sliding door on the car side and the sliding door on the hall side are opened and closed at the same time. The elevator door 1 focuses on one of a plurality of overlapping sliding doors even on one floor, and has a common configuration that is applied to both the car side and the hall side.

During operation of the elevator, the faces maintained facing each other are not visible. Since it is not necessary to adjust the appearance of the surface that is not exposed in this way, the surface of the heat insulating member 3 to be filled by the thickness of the sliding door (hereinafter also referred to as "door thickness") is exposed without decorative finish. I do not care. Therefore, the door panel 4 made of sheet metal, which serves as the outer skin frame of the sliding door, does not cover the unexposed surface.

An elevator door 1 is provided with a sheet metal door panel 4 serving as an outer skin frame, a heat insulating member 3 fitted and filled with the door panel 4, and a fixing member 6 for each of a plurality of sliding doors. The door panel 4 can form a flat box-shaped space P having a predetermined thickness in the form of a pocket while the door panel 4 is being completely assembled. The heat insulating member 3 that can be fitted into the flat box-shaped space P is a thin rectangular parallelepiped with no flexibility. The fixing member 6 is also made of sheet metal and is a locking tool for fixing the heat insulating member 3 to the door panel 4 . The fixing member 6 is locked in a vertical frame shape on the side of the door pocket indicated by arrow M in FIG. 1A (the door pocket side M).

The door panel 4 of the elevator door 1 has an open edge 41 and a folded edge 42 . The open edge portion 41 can be fitted by inserting it from a direction parallel to the flat surface H on the side where the heat insulating member 3 can be kept face-to-face. The bent edge portion 42 is formed by bending at right angles from the flat surface H so that the one end face 31 of the heat insulating member 3 can be brought into contact and locked. In addition, the other end surface 32 of the heat insulating member 3 is positioned on the flat surface H opposite to the bent edge portion 42 . The fixing member 6 is fixed to the door panel 4 by contacting the other end face 32 and sandwiching the vicinity thereof.

Moreover, in the elevator door 1, it is preferable that the open edge portion 41 is on the door case side M and the bent edge portion 42 is on the door stop side N. Advantageously, the door stop side N is a folded edge 42 without a protrusion, since the side end surface of the sliding door is exposed. On the other hand, since the door pocket side M is not exposed, even if a tight fastening portion between the sheet metal members occurs at the open edge portion 41, it can be accommodated and hidden, so that there is little problem.

The volume ratio α of the heat insulating member 3 to the volume of the flat box-shaped space P, that is, the filling rate α is set to 95% or more. Preferably, the cage is densely packed with no gaps so that α = 100%, thereby improving the heat insulating property, suppressing the temperature rise in the cage, and improving the fire prevention and heat resistance performance. Both the volume of the flat box-shaped space P and the volume of the heat insulating member 3 can be calculated by multiplying the respective lengths obtained by measuring the length, width, and depth of the rectangular parallelepiped. α can also be easily calculated.

The elevator door 10 according to the comparative example shown in FIG. 1B has a complicated structure in which the heat insulating member 13 is interposed in the intermediate portion of the door panel 14 . In other words, in the elevator door 10, the fixing member 16 is fixed to the door panel 14 including the contact position range of the heat insulating member 13 on the flat surface H, so that the door side space 8 is generated. tend to As a result, the elevator door 10 accommodates the heat insulating member 13 with a smaller volume R than the volume of the flat box-shaped space P.

On the other hand, in the elevator door 1 , the position where the fixing member 6 holding the heat insulating member 3 is fixed to the door panel 4 is outside the contact position of the heat insulating member 3 on the flat surface H. Therefore, since the elevator door 1 does not create the door-side space 8, it is easy to set the filling rate α to 95% or more, and it is preferable to set the filling rate α to 100%. As a result, fire prevention and heat resistance performance is improved.

For example, the elevator door 1 is applied to a landing side door. In this case, the heat insulating member 3 fitted inside the door panel 4 is configured to directly face the hoistway. As a result, the elevator door 1 improves the heat insulating property and suppresses the temperature rise of the surface facing the inside of the car that is stopped on the floor even in the event of a fire in the building. Further, the same effect can be obtained even if the elevator door 1 is applied to the door on the car side.

Further, according to the elevator door 1, the heat insulating member 3 can be easily and reliably fixed by the fixing member 6 having a predetermined shape. As a result, it is possible to reduce the overlap of the sheet metal members, simplify the door without thickening it, and improve the easiness of assembly.

These points will be described by comparing the elevator door 1 in FIG. 1A and the elevator door 10 according to the comparative example in FIG. 1B. In the elevator door 10 of the comparative example, the door panel 14, which is a sheet metal outer skin frame, is bilaterally symmetrical between the doorstop side N and the door pocket side M. As shown in FIG. As a result, door side spaces 8 are created at a total of two locations, the vertical frame portion on the doorstop side N and the door pocket side M. In order to eliminate the door side space 8, it is desirable to fill the box-shaped space with a heat-insulating member without gaps in the box-shaped cross-sectional door formed by bending the sheet metal to enhance the heat-insulating effect.

A total of two door side spaces 8 are created as a result of fixing the heat insulating member 13 to the door panel 14 with a fixing member 16 having a T-shaped cross section. Not only is the heat insulating effect disadvantageous due to the door side space 8 , but the thickness of the elevator door 10 is increased by the plate thickness of the fixing member 16 . Even if the plate thickness is only 1 mm, the overlapping portion of the two elevator doors 10 will have a step difference between the plate thickness portion due to the fixing member 16 and the surface without the fixing member 16, which causes the door thickness to increase. become.

The fact that the thickness of the elevator door 1 can be made as thin as 1 mm is not only advantageous for the purpose of fire resistance and heat insulation, but is also advantageous from the viewpoint of increasing the degree of freedom in design as a general problem before that. For example, in the case of a sliding door that opens to one side and has a plurality of overlapping sheets, it is particularly desirable to make the door thinner. In relation to the thickness of the door, the gap in the overlapped portion becomes a hot air entrance path, so the wider the gap, the more disadvantageous it becomes. Therefore, it is better not to have this gap because it serves as a hot air entrance path.

Since the hot air entry path allows hot drafts to enter the car in the event of a fire, the elevator door 10 of the comparative example is disadvantageous in terms of fire prevention and heat resistance. Conversely, the elevator door 1 according to Example 1 of FIG. 1A is also more advantageous in terms of fire prevention and heat resistance than the elevator door 10 according to the comparative example of FIG. 1B. As a result, even in the event of a building fire, it becomes easier to ensure the safety of elevator users left in the car for a predetermined period of time.

Next, the configuration of the elevator door 2 according to Embodiment 2 of the present invention will be described with reference to FIGS. 2A and 2B. FIG. 2A is a vertical cross-sectional view of the elevator door 2 according to the second embodiment cut along a vertical plane in the depth direction. FIG. 2B is a vertical cross-sectional view of an elevator door 20 according to a comparative example for the elevator door 2 of FIG. 2A cut along a vertical plane in the depth direction. Further, FIG. 2A shows that the elevator door 2 can be realized even if the conventional basic structure is followed to some extent, leaving the door bottom space 18 and supporting the lower end surface 33 of the heat insulating member 3 with a reinforcing member. , these can be omitted. In this case, since the flat box-shaped space Q expands to the bottom of the door panel 5, if the size of the heat-resistant member 3 is enlarged accordingly, a filling rate α of 100% can be achieved. For convenience of illustration, the flat box-shaped space Q in FIGS. 2A and 2B coincides with the heat-resistant member 3 and is drawn as if it were slightly separated from the surfaces of the door panels 5 and 15. means a pocket-shaped space surrounded by a sheet metal member such as the door panel 15 and does not necessarily match the heat-resistant member 3 .

The elevator door 1 according to the first embodiment shown in FIG. 1A described above and the elevator door 2 according to the second embodiment shown in FIG. 2A newly viewed from the side may be the same. In that case, both the fixing member 6 and the door shoe bracket 7 are used together for fixing. In particular, in that case, in FIG. 2A, by designing the door shoe bracket 7 and the fixing member 6 (not shown) so as not to overlap each other, it is possible to avoid increasing the thickness of the door. Moreover, if the fixing member 6 is also used, the upper part U in FIG. 2A may be left open. As a result, there is no need to increase the number of parts.

In the elevator door 2 of Example 2, the lower portion 51 of the door panel 15 on which the door shoe 11 is arranged is viewed from the side to describe its features. In the elevator door 2 , an open edge 52 is formed above U of the door panel 5 . The open edge portion 52 can be fitted by inserting the heat insulating member 3 from a direction parallel to the flat surface H on the side where the facing can be maintained. A door shoe 11 is arranged on the lower portion 51 of the door panel 5 . The door shoe 11 is slidably engaged with the threshold groove 12 to guide the opening/closing operation.

Furthermore, the door shoe 11 is provided with a guide surface 19 and a door shoe bracket 7 . The guide surface 19 is perpendicular to the flat surface H and can support the lower portion 51 of the door panel 5 . The door shoe bracket 7 is arranged perpendicularly upward to the guide surface 19 and engages the lower edge 34 of the heat insulating member 3 . Here, the description of only Example 2 ends. Next, an assembly method for both the elevator door 1 according to the first embodiment shown in FIG. 1A and the elevator door 2 according to the second embodiment shown in FIG. 2A will be described with reference to all drawings of FIGS.

FIG. 3 is a flow chart showing the procedure of the method for assembling the elevator doors 1 and 2 according to the first and second embodiments of the present invention. This is an elevator door assembling method for assembling any one of a plurality of sliding doors that open and close independently at a doorway between an elevator car and a hall so as to maintain a face-to-face relationship. In other words, the method of assembling a single thick sliding door from parts such as sheet metal will be described. The description up to the completion of painting and the opening/closing drive device is omitted.

The method for assembling the elevator doors 1 and 2 includes a sheet metal bending step (S10), a heat insulating member inserting step (S20), and a heat insulating member fixing step (S30) as follows. In the sheet metal bending step (S10), the sheet metal door panels 1 and 2, which will be the outer skin frame of the sliding door, are bent to a predetermined thickness so that the flat box-shaped spaces P and Q are formed. The volumes of the flat box-shaped spaces P and Q are set in the range of 1 to 1.05 times the volume of the heat insulating member 3 to be accommodated in a later step. Therefore, the heat insulating member 3 is densely housed without gaps.

In the insulating member inserting step (S20), the rectangular parallelepiped insulating member 3 is inserted into the formed flat box-shaped space. In the heat insulating member fixing step (S30), the fitted heat insulating member 3 is fixed to the door panel with the fixing member 6. As shown in FIG. Here, the volume ratio of the heat insulating member 3 to the volume of the flat box-shaped spaces P and Q is 95% or more. According to such an elevator door assembling method, the elevator doors 1 and 2 excellent in fire prevention and heat resistance performance can be easily assembled and completed with a small number of parts and a small number of steps.

The step of fixing the heat insulating member with the fixing member (S30) may be a step of locking the lower edge 34 of the heat insulating member with the door shoe bracket 7 (S31). You can fix it. In other words, instead of the fixing member 6, only the door shoe bracket 7 may be used for fixing. At this time, the door shoe bracket 7 is regarded as a fixing member.

The door shoe bracket 7 is a fixing member attached to the door shoe 11 . The door shoe 11 is slidably engaged with the threshold groove 12 at the lower portion 51 of the door panel 15 to guide the opening/closing operation. The door shoe bracket 7 has a guide surface 19 and a bent portion 9 . The guide surface 19 is perpendicular to the flat surface H of the door panel 15 and can support the lower portion 51 of the door panel 15 . The bent portion 9 extends perpendicularly upward to the guide surface 19 .

According to this elevator door assembling method, the lower edge 34 of the heat insulating member 3 can be easily and reliably fixed by the door shoe bracket 7 having a predetermined shape. Elevator doors 1 and 2 assembled by such a method can improve heat insulation properties to suppress temperature rise in the car, reduce overlapping of sheet metal members, simplify the door without thickening it, and facilitate assembly. .

As described above, the elevator doors 1 and 2 according to the first and second embodiments take into consideration the following three points. The first is to fill the flat box-shaped spaces P and Q with the heat insulating member 3 without gaps, the second is not to increase the thickness of the door, and the third is from the sheet metal bending step (S10) to the heat insulating member fixing step (S30). to increase the productivity of However, these first to third points have conflicting restrictions.

It is an object of the present invention to eliminate these contradictory constraints and achieve both the first to third points. In order to solve this problem, the embodiments of the present invention employ the characteristic configurations shown in Examples 1 and 2. FIG. In Example 1, the configuration in which the fixing member 6 is brought into contact with the end face 32 of the heat insulating member 3 on the door case side M is exemplified. In Example 2, the configuration of the door shoe bracket 7 that can also serve as a fixing member is illustrated. As a result, overlapping of the sheet metal members is eliminated, and the above first to third points are achieved without increasing the thickness of the door.

Elevator doors according to embodiments of the present invention can be summarized as follows.
[1] Elevators are provided with elevator doors 1 and 2 for opening and closing an entrance between a car and a landing. The elevator doors 1 and 2 are formed with independent sliding doors on the car side and the hall side, and each sliding door opens and closes so as to keep the car side and the hall side facing each other.

Each of the elevator doors 1 and 2 composed of the plurality of sliding doors described above is configured as follows. That is, each sliding door is provided with sheet metal door panels 4 and 5 that serve as outer skin frames, a heat insulating member 3 that is fitted and filled therein, and a fixing member 6 (7).

The door panels 4 and 5 can form the flat box-shaped spaces P and Q of a predetermined thickness during the completion of assembly. For convenience of explanation, the elevator doors 1 and 2, the door panels 4 and 5, and the flat box-shaped spaces P and Q are assigned two types of reference numerals, respectively, and are distinguished between FIG. 1A and FIG. 2A. It may be the same thing with the same shape and same volume.

The heat insulating member 3 that can be fitted into the flat box-shaped spaces P and Q is a thin rectangular parallelepiped. The fixing member 6 (7) is also made of sheet metal and is a locking tool for fixing the heat insulating member 3 to the door panels 4 and 5. As shown in FIG. This fixing member 6 (7) is locked in a vertical frame shape on the door pocket side M in FIG. 1A. Note that the fixing member 6 is omitted in FIG. 2A.

The volume ratio α of the heat insulating member 3 to the volume of the flat box-shaped spaces P and Q, that is, the filling rate α is set to 95% or more. Preferably, the cage is densely packed with no gaps so that α = 100%, thereby improving the heat insulating property, suppressing the temperature rise in the cage, and improving the fire prevention and heat resistance performance.

Since the elevator doors 1 and 2 are configured so that the heat insulating member 3 fitted inside the door panels 4 and 5 directly faces the hoistway, the temperature rise of the surfaces facing the inside of the car is suppressed and the heat insulating property is improved. can be improved. In addition, according to the elevator doors 1 and 2, the heat insulating member 3 can be easily and reliably fixed by the fixed member 6 having a predetermined shape. It is possible to improve ease of assembly.

[2] In the elevator door 1 of [1] above, the door panel 4 has an open edge portion 41 and a bent edge portion 42 . The bent edge portion 42 is bent at right angles from the flat surface H so as to contact the one end surface 31 of the heat insulating member 3 and engage with it. Further, the other end surface 32 of the heat insulating member 3 is sandwiched and fixed at a position opposite to the bent edge portion 42 on the flat surface H by the fixing member 6 . The open edge portion 41 can be fitted by inserting it from a direction parallel to the flat surface H on the side where the heat insulating member 3 can be kept face-to-face. Therefore, it is excellent in ease of assembly.

[3] In the elevator door 1 of [2] above, the position where the fixing member 6 holding the heat insulating member 3 is fixed to the door panel 4 is outside the contact position of the heat insulating member 3 on the flat surface H. preferable. Since the elevator door 10 according to the comparative example shown in FIG. A space 8 tends to occur.

On the other hand, the elevator door 1 according to the first embodiment shown in FIG. 1A does not generate the door side space 8, so it is easy to set the filling rate α to 95% or more, as shown in FIG. 1A. As shown, α=100% is preferable. As a result, fire prevention and heat resistance performance is improved.

[4] In the elevator door 1 of [2] above, it is preferable that the open edge portion 41 is on the door case side M and the bent edge portion 42 is on the door stop side N. Advantageously, the door stop side N is a folded edge 42 without a protrusion, since the side end surface of the sliding door is exposed. On the other hand, since the door pocket side M is not exposed, even if a tight fastening portion between the sheet metal members occurs at the open edge portion 41, it can be accommodated and hidden, so that there is little problem.

[5] In the elevator door 2 of [1] above, an open edge portion 52 is formed above U of the door panel 15 . The open edge portion 52 can be fitted by inserting the heat insulating member 3 from a direction parallel to the flat surface H on the side where the facing can be maintained. Therefore, it is excellent in ease of assembly.

A door shoe 11 is arranged on the lower portion 51 of the door panel 15 . The door shoe 11 is slidably engaged with the threshold groove 12 to guide the opening/closing operation. Furthermore, the door shoe 11 is provided with a guide surface 19 and a door shoe bracket 7 . The guide surface 19 is perpendicular to the flat surface H and can support the lower portion 51 of the door panel 15 . The door shoe bracket 7 is arranged perpendicularly upward to the guide surface 19 and engages the lower edge 34 of the heat insulating member 3 .

[6] The elevator doors 1, 2 of any one of [1] to [5] above are arranged in the car.
[7] The elevator doors 1, 2 of any one of [1] to [5] above are arranged at the landing.

An elevator door assembling method according to an embodiment of the present invention is an elevator door assembling method for assembling any one of a plurality of sliding doors that open and close independently at a doorway between an elevator car and a landing so as to maintain a face-to-face relationship. can be summarized as

[8] The elevator door assembling method for assembling any one of a plurality of sliding doors that are composed of sliding doors and that can be opened and closed so that the car side and the hall side can be opened and closed includes a sheet metal bending step (S10) and a heat insulating member inserting step. (S20) and a heat insulating member fixing step (S30).

In the sheet metal bending step (S10), the sheet metal door panels 1 and 2, which will be the outer skin frame of the sliding door, are bent to a predetermined thickness so that the flat box-shaped spaces P and Q are formed. The volumes of the flat box-shaped spaces P and Q are set in the range of 1 to 1.05 times the volume of the heat insulating member to be accommodated in the subsequent process. Therefore, the heat insulating member 3 is densely housed without gaps.

In the insulating member inserting step (S20), the rectangular parallelepiped insulating member 3 is inserted into the formed flat box-shaped space. In the heat insulating member fixing step (S30), the fitted heat insulating member 3 is fixed to the door panel with the fixing member 6. As shown in FIG. Here, the volume ratio of the heat insulating member 3 to the volume of the flat box-shaped spaces P and Q is 95% or more. According to such an elevator door assembling method, the elevator doors 1 and 2 excellent in fire prevention and heat resistance performance can be easily assembled and completed with a small number of parts and a small number of steps.

[9] The step of fixing the heat insulating member (S30) may be a step of locking the lower edge 34 of the heat insulating member with the door shoe bracket 7 (S31). You may use together and fix. In other words, instead of the fixing member 6, only the door shoe bracket 7 may be used for fixing. At this time, the door shoe bracket 7 is regarded as a fixing member.

The door shoe bracket 7 is a fixing member attached to the door shoe 11 . The door shoe 11 is slidably engaged with the threshold groove 12 at the lower portion 51 of the door panel 5 to guide the opening/closing operation. The door shoe bracket 7 has a guide surface 19 and a bent portion 9 . The guide surface 19 is perpendicular to the flat surface H of the door panel 5 and can support the lower portion 51 of the door panel 5 . The bent portion 9 extends perpendicularly upward to the guide surface 19 .

According to this elevator door assembling method, the lower edge 34 of the heat insulating member 3 can be easily and reliably fixed by the door shoe bracket 7 having a predetermined shape, thereby simplifying the structure and improving the ease of assembly. becomes possible.

1, 2, 10, 20 elevator door, 3 heat insulating member, 4, 14, 5, 15 door panel, 6, 16 fixing member, 7 door shoe bracket, 41 open edge (of elevator door 1), 42 (elevator door 1) of) folded edge, H (insulating member 3) flat surface, P, Q, flat box-shaped space, α filling rate (volume ratio of the insulating member 3 to the volume of the flat box-shaped space P, Q)

Claims (8)

An elevator door formed of a plurality of sliding doors that open and close independently in a doorway between an elevator car and a hall,
The sliding door is
A door panel made of sheet metal that can form a flat box-shaped space of a predetermined thickness as an outer skin frame of the sliding door;
a rectangular parallelepiped heat insulating member that can be fitted into the flat box-shaped space;
a fixing member for fixing the heat insulating member to the door panel;
with
The volume ratio of the heat insulating member to the volume of the flat box-shaped space is 95% or more ,
The door panel is
The flat surface on the side that can maintain the face-to-face relationship has an open edge to which the heat insulating member can be inserted and fitted in a direction parallel to the flat surface;
a bent edge bent at a right angle from the flat surface so as to be able to engage with one end surface of the heat insulating member;
has
The fixing member clamps and fixes the other end surface of the heat insulating member at a position opposite to the bent edge on the flat surface.
elevator door. The position at which the fixing member holding the heat insulating member is fixed to the door panel is
Outside the contact position of the heat insulating member on the flat surface,
An elevator door according to claim 1 . The open edge is on the door pocket side, and the bent edge is on the door stop side.
An elevator door according to claim 1 . An elevator door formed of a plurality of sliding doors that open and close independently in a doorway between an elevator car and a hall,
The sliding door is
A door panel made of sheet metal that can form a flat box-shaped space of a predetermined thickness as an outer skin frame of the sliding door;
a rectangular parallelepiped heat insulating member that can be fitted into the flat box-shaped space;
a fixing member for fixing the heat insulating member to the door panel;
with
The volume ratio of the heat insulating member to the volume of the flat box-shaped space is 95% or more,
Above the door panel, an open edge is formed in which the flat surface on the side that can maintain the face-to-face relationship can be fitted by inserting the heat insulating member in a direction parallel to the flat surface,
A door shoe is provided at the bottom of the door panel for slidably engaging with the threshold groove to guide the opening and closing operation,
The door shoe has
a guide surface perpendicular to the flat surface and capable of supporting a lower portion of the door panel;
a door shoe bracket having a bent portion extending perpendicularly upward to the guide surface to lock the lower edge of the heat insulating member;
Elevator door with. The elevator door according to any one of claims 1 to 4 , attached to the car. The elevator door according to any one of claims 1 to 4 , which is attached to the landing. An elevator door assembling method for assembling any one of a plurality of sliding doors that open and close independently at a doorway between an elevator car and a hall, so as to be able to maintain facing each other,
a sheet metal folding step to form a flat box-shaped space having a predetermined thickness with respect to a sheet metal door panel that serves as an outer skin frame of the sliding door;
a heat insulating member inserting step of inserting a rectangular parallelepiped heat insulating member into the formed flat box-shaped space;
a heat insulating member fixing step of fixing the fitted heat insulating member to the door panel with a fixing member;
has
The volume ratio of the heat insulating member to the volume of the flat box-shaped space is 95% or more,
Elevator door assembly method. In the heat insulation member fixing step with the fixing member,
locking a lower edge of the insulating member with a door shoe bracket;
The door shoe bracket is attached to the door shoe that slidably engages with the threshold groove at the bottom of the door panel to guide the opening and closing operation, is perpendicular to the flat surface of the door panel, and can support the bottom of the door panel. and a bent portion extending perpendicularly upward to the guide surface,
A method for assembling an elevator door according to claim 7 .

Images