JP5607794B1 - Three-way elevator - Google Patents

Abstract

An elevator three-way frame that enables a landing door to be easily removed from a landing side is provided.
A three-way frame 10 of an elevator 1 is installed at a landing 3 facing a hoistway 2 and has a pair of jam lateral portions 20 and a jam upper portion 30 connected to the upper ends of the pair of jam lateral portions 20. . Each of the jam lateral portions 20 and the jam upper portion 30 includes a reinforcing body 21 extending between the hoistway 2 and the landing 3 and a surface material 25 connected along the reinforcing body 21. A part 25a1 of the surface material 25 is freely bendable from the other part 25a2.
[Selection] Figure 3

Description

  The present invention relates to an elevator three-way frame installed at a landing toward a hoistway, and more particularly to an elevator three-way frame that enables a landing door panel to be removed from the landing side.

  An opening serving as an entrance / exit of the elevator is formed in each landing wall that divides the elevator hoistway and the landing. For example, a three-sided frame shown in FIGS. 18 and 19 is installed so as to surround both ends and the upper end of the opening. FIG. 18 is a schematic perspective view showing a conventional three-way frame. FIG. 19 is a schematic side view showing a state in which the three-way frame shown in FIG. 18 is installed on the landing wall.

  As shown in FIGS. 18 and 19, the three-way frame 510 is typically made of a metal material such as a stainless steel plate, and is formed by bending according to the structure and design of the landing 503. The three-way frame is welded to the wall surface that defines the opening, or is anchored and fixed. The fixed three-way frame 510 is united with the landing wall 508 by backfilling the landing wall 508 made of gypsum board or the like using mortar.

  On the other hand, a landing door drive mechanism 505 is attached to a part of the landing wall 508 above the three-way frame 510. The landing door drive mechanism 505 includes an endless belt 505a and an L-shaped hanger 505b attached to the belt 505a. The L-shaped hanger 505b holds the landing door 504 while suspending it. On the other hand, a threshold 506 for guiding the landing door 504 is attached to the lower part of the three-way frame 510. With such a configuration, the landing door 504 can be opened and closed along the threshold 506 by driving the belt 505a and moving the L-shaped hanger 505b. Note that the L-shaped hanger 505b and the like constituting the landing door drive mechanism 505 are disposed at positions hidden by the three-way frame 510 and the landing wall 508 when viewed from the landing 503 side, thereby improving the design.

JP 2003-155184 A

  By the way, when a disaster or the like occurs and the surroundings of the landing are deformed, the landing door 504 may be unable to be opened and closed. If the landing door 504 cannot be opened and closed, a passenger who has entered the car cannot get off from the car to the landing 503 side. Therefore, it is necessary to remove the landing door 504 installed at the landing 503 in order to remove the passengers in the passenger car from the passenger car. In this regard, for example, Patent Document 1 describes a method in which a worker riding on the upper surface of the car removes the landing door 504 from the hoistway 502 side by raising and lowering the car to a predetermined position with respect to each landing 503. Yes. However, in this case, since the upper surface of the car is unstable as a scaffold, it is not easy to remove the landing door 504 from the hoistway 502 side.

  On the other hand, when removing the landing door 504 from the landing 503 side, it is necessary to remove the three-way frame 510 from the landing wall 508. In this case, however, the landing wall 508 surrounding the three-way frame 510 must be destroyed by using heavy equipment, and the three-way frame 510 must be dismantled. End up. Moreover, it is not easy to prepare heavy machinery when a disaster or the like occurs, and it is extremely difficult to remove the landing door 504.

  This invention is made | formed in view of such a point, and it aims at providing the three-way frame of the elevator which makes it possible to remove a landing door easily from a landing side.

The three-way frame of the first elevator according to the present invention is installed in the elevator landing toward the hoistway, and has a pair of jam lateral portions and a jam upper portion connected to the upper ends of the pair of jam lateral portions. In the frame,
Each jam lateral part and the jam upper part each have a reinforcing body extending between the hoistway and the landing, and a surface material connected along the reinforcing body,
Part of the surface material can be bent from the other part.

  In the three-way frame of the first elevator according to the present invention, the surface material may be bendable at an intermediate position between the hoistway and the landing.

  In the three-way frame of the first elevator according to the present invention, the surface material may be foldable on the landing side.

The three-way frame of the second elevator according to the present invention is installed in the elevator landing toward the hoistway, and has three pairs of jam lateral portions and an upper portion of the jam connected to the upper ends of the pair of jam lateral portions. In the frame,
Each jam lateral part and the jam upper part each have a reinforcing body extending between the hoistway and the landing, and a surface material connected along the reinforcing body,
A part of each surface material is separable from other parts.

In the three-way frame of the second elevator according to the present invention, each surface material includes a first part located on the hoistway side, a second part located on the landing side from the first part, and the first part. Including a bonding material disposed between the second portion and connecting the first portion and the second portion;
The first part may be separable from the second part via the bonding material.

  In the three-way frame of the second elevator according to the present invention, the surface material is formed with a groove extending in one direction between the landing and the hoistway, and the hoistway side portion of the surface material and the reinforcement body When the hoistway side portion of the surface material is broken from the landing side through the groove, the broken portion can be pushed into the space between the reinforcing bodies. May be.

The three-way frame of the third elevator according to the present invention is installed at the elevator landing toward the hoistway, and has a pair of jam lateral parts and an upper part of the jam connected to the upper ends of the pair of jam lateral parts. In the frame,
Each jam lateral part and the jam upper part each have a reinforcing body extending between the hoistway and the landing, and a surface material connected along the reinforcing body,
The surface material extends toward an opposite side of the opening from an opening surface facing an opening surrounded by the pair of jam lateral portions and the jam upper portion, and a landing side end portion of the opening surface. A finding surface, and a folding surface extending from the end of the finding surface opposite to the opening surface in parallel to the opening surface and fixed to the reinforcing body,
The folded surface is rotatable with respect to the finding surface and can be fixed to the reinforcing body,
The surface material is movable from the hoistway side toward the landing side in a state where the folding surface is rotated with respect to the finding surface.

  In the three-way frames of the first to third elevators according to the present invention, a decorative sheet may be attached to a surface of the surface material that faces away from the reinforcing body.

  ADVANTAGE OF THE INVENTION According to this invention, the three-way frame of the elevator which makes it possible to remove a landing door easily from the landing side can be provided.

FIG. 1 is a schematic front view showing a state in which a three-way frame according to a first embodiment of the present invention is installed on a landing wall. FIG. 2 is a schematic side view showing a state in which the three-way frame shown in FIG. 1 is installed on the landing wall. FIG. 3 is a cross-sectional view showing a cross section of the three-way frame along the line III-III shown in FIG. FIG. 4 is a cross-sectional view showing a state in which a part of the surface material of the lateral portion of the jam of the three-way frame is bent from the state shown in FIG. FIG. 5 is a cross-sectional view showing a cross section of the three-way frame along the line VV shown in FIG. FIG. 6 is a cross-sectional view showing a state in which a part of the surface material of the upper part of the jam of the three-way frame is bent from the state shown in FIG. FIG. 7 is a view corresponding to FIG. 3, and is a cross-sectional view showing a state where a decorative sheet is attached to the surface material of the jam lateral portion of the three-way frame. FIG. 8 is a cross-sectional view corresponding to FIG. 3 and showing a jam lateral portion of a three-way frame according to the second embodiment of the present invention. FIG. 9 is a cross-sectional view showing a state in which a part of the surface material of the jam lateral portion of the three-way frame is separated from the state shown in FIG. FIG. 10 is a cross-sectional view corresponding to FIG. 5 and showing an upper portion of the jam of the three-way frame according to the second embodiment of the present invention. FIG. 11 is a cross-sectional view showing a state in which a part of the surface material at the upper part of the jam of the three-way frame is separated from the state shown in FIG. FIG. 12 is a cross-sectional view showing a modified example of the jam lateral portion of the three-way frame shown in FIG. FIG. 13 is a cross-sectional view showing a state in which a part of the surface material of the jam lateral portion of the three-way frame is separated from the state shown in FIG. 14 is a cross-sectional view showing a modification of the upper part of the jam of the three-way frame shown in FIG. FIG. 15 is a cross-sectional view showing a state in which a part of the surface material at the upper part of the jam of the three-way frame is separated from the state shown in FIG. FIG. 16A is a view corresponding to FIG. 3, and is a cross-sectional view showing a lateral portion of the jam of the three-way frame according to the third embodiment of the present invention, and FIG. It is sectional drawing which shows the state which turned up the folding surface of the jam lateral part of a three-way frame from the state shown to a), FIG.16 (c) is a jam lateral part of a three-sided frame from the state shown in FIG.16 (b). It is sectional drawing which shows the state which moved the surface material of this to the landing side from the hoistway side. FIG. 17A is a view corresponding to FIG. 5, and is a cross-sectional view showing a jammed upper portion of a three-way frame according to the third embodiment of the present invention, and FIG. ) From the state shown in FIG. 17 is a cross-sectional view showing the folded back surface of the upper part of the jam of the three-sided frame. FIG. 17C is a surface material of the upper part of the jam of the three-sided frame from the state shown in FIG. It is sectional drawing which shows the state which was moved from the hoistway side to the landing side. FIG. 18 is a schematic perspective view showing a conventional three-way frame. FIG. 19 is a schematic side view showing a state in which the three-way frame shown in FIG. 18 is installed on the landing wall.

<< First Embodiment >>
The first embodiment of the present invention will be described below with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual product. FIG. 1 to FIG. 7 are diagrams for explaining a first embodiment according to the present invention. 1 and 2 are a schematic front view and a schematic side view showing a state in which the three-sided frame 10 according to the first embodiment of the present invention is installed on the landing wall 8, respectively.

  As shown in FIGS. 1 and 2, the three-way frame 10 is installed at each landing 3 provided toward the hoistway 2. Specifically, each landing wall 8 that divides the hoistway 2 and the landing 3 of the elevator 1 is formed with an opening 9 serving as an entrance / exit of the elevator 1 so as to surround both side ends and the upper end of the opening 9. A three-way frame 10 is installed. The three-way frame 10 includes a pair of jam lateral portions 20 disposed to face each other in the horizontal direction, and a jam upper portion 30 connected to the upper ends of the pair of jam lateral portions 20.

  As shown in FIG. 2, the landing door drive mechanism 5 is attached to a part of the landing wall 8 located above the three-way frame 10. The landing door drive mechanism 5 has an endless belt 5a and an L-shaped hanger 5b attached to the belt 5a. The L-shaped hanger 5b holds the landing door 4 while being suspended through the bolt 4b.

  On the other hand, a sill 6 for guiding the landing door 4 is attached to the lower part of the jam lateral part 20 of the three-way frame 10. The sill 6 is provided with a recess 6a extending in the opening / closing direction of the landing door 4, and the guide 4a of the landing door 4 is inserted into the recess 6a.

  By driving the belt 5a and moving the L-shaped hanger 5b, the landing door 4 can be opened and closed while the guide 4a of the landing door 4 is guided along the recess 6a of the sill 6.

  Next, the three-way frame 10 will be described in detail below. First, the jam lateral portion 20 of the three-way frame 10 will be described with reference to FIGS. 3 and 4. 3 is a cross-sectional view showing a cross section of the three-way frame 10 along the line III-III shown in FIG. 1, and FIG. 4 is a surface material 25 of the jam lateral portion 20 of the three-side frame 10 from the state shown in FIG. It is sectional drawing which shows the state which bent some.

  As shown in FIG. 3, each jam lateral portion 20 is arranged along the vertical direction, and is connected to the reinforcing body 21 that extends between the hoistway 2 and the landing 3, and is connected along the reinforcing body 21. Similar to 21, it has a surface material 25 extending between the hoistway 2 and the landing 3. In this case, as will be described later, the surface material 25 has an opening surface 25a that forms the surface on the opening 9 side, and the reinforcing body 21 is formed on the back side of the surface material 25, that is, between the surface material 25 and the landing wall 8. Arranged between. Moreover, the reinforcing body 21 and the surface material 25 are comprised by the flat member, and are shape | molded by a bending process.

  As shown in FIG. 3, the surface material 25 is formed from the above-described opening surface 25 a that forms the surface on the opening 9 side and the end of the opening surface 25 a on the landing 3 side toward the side opposite to the opening 9. It includes a finding surface 25c that extends and a folded surface 25b that extends in parallel to the opening surface 25a from the end of the finding surface 25c opposite to the opening surface 25a. Among these, the opening surface 25a is arrange | positioned along the up-down direction, and is extended toward the hoistway 2 side from the landing 3 side. The opening surface 25a is orthogonal to the opening / closing direction of the landing door 4, and a groove 26 extending in the vertical direction (one direction) is formed at an intermediate position between the hoistway 2 side and the landing 3 side of the opening surface 25a. ing. By this groove 26, the opening surface 25 a is partitioned into a first portion 25 a 1 located on the hoistway 2 side with respect to the groove 26 and a second portion 25 a 2 located on the landing 3 side with respect to the groove 26.

  In the present embodiment, the groove 26 formed on the opening surface 25a of the surface material 25 is not formed on the surface of the opening surface 25a facing the opening 9 side, but on the surface of the reinforcing body 21. It is formed on the surface on the side. Thereby, since the groove | channel 26 formed in the opening surface 25a is no longer visually recognized by the user who observes the surface material 25 from the opening part 9 side, the design property of the jam lateral part 20 can be improved.

  As shown in FIG. 4, the first portion 25a1 of the opening surface 25a can be bent with respect to the second portion 25a2 with the groove 26 as a starting point. When the first portion 25a1 is bent, the end portion on the hoistway 2 side of the first portion 25a1 can be positioned on the second portion 25a2 side. As described above, the first portion 25a1 can be rotated at least 90 degrees from the groove 26 as a starting point.

  On the other hand, the finding surface 25c forms the surface of the surface material 25 observed when viewed from the landing 3 side toward the hoistway 2 side. The finding surface 25 c is arranged along the vertical direction, and is parallel to the opening / closing direction of the landing door 4.

  Further, the folding surface 25b is arranged along the vertical direction and is orthogonal to the opening / closing direction of the landing door 4. The folding surface 25b contributes to improving the bending rigidity of the surface material 25 together with the finding surface 25c. In the cross section shown in FIG. 3, the length of the folded surface 25b protruding from the finding surface 25c is considerably shorter than the length of the opening surface 25a protruding from the finding surface 25c.

  In addition, a finding back surface 25d arranged so as to extend in parallel with the finding surface 25c is connected to the end of the opening surface 25a on the hoistway 2 side. The finding back surface 25 d contributes to improving the bending rigidity of the surface material 25.

  Next, the reinforcing body 21 of the jam lateral part 20 will be described. As shown in FIG. 3, the reinforcing body 21 of the jam lateral portion 20 is in contact with the vicinity of the groove where the groove 26 is formed in the surface material 25, and reinforces the surface material 25. The reinforcing body 21 is fixed to the landing wall 8, and is fixed to the surface material 25 at a position closer to the landing 3 than the groove 26.

  As a specific configuration, the reinforcing body 21 includes an attachment surface 21a attached to the landing wall 8, a contact surface 21b in contact with a groove vicinity portion where the groove 26 of the opening surface 25a is formed, and from the attachment surface 21a to the contact surface 21b. It includes a connecting surface 21c that extends and a folded surface 21d that is connected to the end of the contact surface 21b on the landing 3 side and extends in a direction perpendicular to the contact surface 21b. Among these, the contact surface 21b is arranged in parallel to the opening surface 25a of the surface material 25, and is in contact with the second portion 25a2 from the first portion 25a1 of the opening surface 25a so as to cover the groove 26. The contact surface 21b is joined to the second portion 25a2 of the opening surface 25a via an adhesive, for example, and is not fixed to the first portion 25a1 of the opening surface 25a.

  On the other hand, the attachment surface 21 a is disposed along the landing wall 8. The mounting surface 21a is welded to the landing wall 8 or is fixed by driving an anchor. On the other hand, the connection surface 21c is disposed along the vertical direction, and is parallel to the opening / closing direction of the landing door 4 in the present embodiment. The folded surface 21d contributes to improving the bending rigidity of the reinforcing body 21.

  Next, the jam upper portion 30 of the three-way frame 10 will be described with reference to FIGS. 5 and 6. FIG. 5 is a cross-sectional view showing a cross section of the three-way frame 10 along the line VV shown in FIG. 1, and FIG. It is sectional drawing which shows the state bent partially. The configuration of the jam upper portion 30 substantially matches the configuration of the jam lateral portion 20.

  As shown in FIG. 5, the jam upper portion 30 is disposed along the horizontal direction, extends between the hoistway 2 and the landing 3, and is connected along the reinforcement body 31. Similarly, it has a surface material 35 extending between the hoistway 2 and the landing 3. In this case, the surface material 35 has an opening surface 35a that forms the surface on the opening 9 side as described later, and the reinforcing body 31 is located on the back side of the surface material 35, that is, between the surface material 35 and the landing wall 8. Placed in. Moreover, the reinforcing body 31 and the surface material 35 are comprised by the flat member, and are shape | molded by a bending process.

  As shown in FIG. 5, the surface material 35 is formed from the above-described opening surface 35 a that forms the surface on the opening 9 side and the end portion on the landing 3 side of the opening surface 35 a toward the side opposite to the opening 9. It includes a finding surface 35c that extends, and a folded surface 35b that extends in parallel to the opening surface 35a from the end of the finding surface 35c opposite to the opening surface 35a. Among these, the opening surface 35a is disposed along the horizontal direction and extends from the landing 3 side toward the hoistway 2 side. A groove 36 extending in the horizontal direction (one direction) is formed at an intermediate position between the hoistway 2 side and the landing 3 side in the opening surface 35a. By this groove 36, the opening surface 35 a is partitioned into a first portion 35 a 1 located on the hoistway 2 side with respect to the groove 36 and a second portion 35 a 2 located on the landing 3 side with respect to the groove 36.

  In the present embodiment, the groove 36 formed on the opening surface 35a of the surface material 35 is not formed on the surface of the opening surface 35a facing the opening 9 side, but on the surface of the reinforcing body 31. It is formed on the surface on the side. Thereby, since the groove | channel 36 formed in the opening surface 35a is not visually recognized by the user who observes the surface material 35 from the opening part 9 side, the design property of the jam upper part 30 can be improved.

  As shown in FIG. 6, the first portion 35a1 of the opening surface 35a can be bent with respect to the second portion 35a2 with the groove 36 as a starting point. When the first portion 35a1 is bent, the end portion on the hoistway 2 side of the first portion 35a1 can be positioned on the second portion 35a2 side. As described above, the first portion 35a1 can be rotated at least 90 degrees from the groove 36 as a starting point.

  As described above, the landing door 4 is fixed to the L-shaped hanger 5b via the bolt 4b at the upper end thereof. As shown in FIG. 6, when the first portion 35a1 of the opening surface 35a is bent with respect to the second portion 35a2 starting from the groove 36, the bolt 4b for fixing the landing door 4 can be accessed from the opening 9 side. .

  On the other hand, the finding surface 35c forms the surface of the surface material 35 observed when viewed from the landing 3 side toward the hoistway 2 side. The finding surface 35c is arranged along the vertical direction.

  Moreover, the folding | returning surface 35b is arrange | positioned along the horizontal direction. The folding surface 35b contributes to improving the bending rigidity of the surface material 35 together with the finding surface 35c. In the cross section shown in FIG. 5, the length of the folded surface 35b protruding from the finding surface 35c is considerably shorter than the length of the opening surface 35a protruding from the finding surface 35c.

  In addition, a finding back surface 35d arranged so as to extend in parallel with the finding surface 35c is connected to the end of the opening surface 35a on the hoistway 2 side. The finding back surface 35 d contributes to improving the bending rigidity of the surface material 35.

  Next, the reinforcing body 31 of the jam upper part 30 will be described. As shown in FIG. 5, the reinforcing body 31 of the jam upper portion 30 is in contact with the vicinity of the groove where the groove 36 is formed in the surface material 35 and reinforces the surface material 35. The reinforcing body 31 is fixed to the landing wall 8, and is fixed to the surface material 35 at a position closer to the landing 3 than the groove 36.

  As a specific configuration, the reinforcing body 31 includes an attachment surface 31a attached to the landing wall 8, a contact surface 31b in contact with a groove vicinity portion where the groove 36 of the opening surface 35a is formed, and from the attachment surface 31a to the contact surface 31b. It includes a connecting surface 31c that extends and a folded surface 31d that is connected to the end of the contact surface 31b on the landing 3 side and extends in a direction orthogonal to the contact surface 31b. Among these, the contact surface 31b is arranged in parallel to the opening surface 35a of the surface material 35, and is in contact with the second portion 35a2 from the first portion 35a1 of the opening surface 35a so as to cover the groove 36. Further, the contact surface 31b is joined to the second portion 35a2 of the opening surface 35a via, for example, an adhesive, and is not fixed to the first portion 35a1 of the opening surface 35a.

  On the other hand, the attachment surface 31a is fixed to the landing wall 8 by driving the anchor 32 in the present embodiment. Further, the folded surface 31d contributes to improving the bending rigidity of the contact surface 31b.

  A material having tenacity against bending can be used for the surface materials 25 and 35 of the jam lateral portion 20 and the jam upper portion 30 having such a configuration. An example of the material constituting the surface materials 25 and 35 is, for example, a flame-retardant reinforced resin. When the surface materials 25 and 35 are made of a flame-retardant reinforced resin, the surface materials 25 and 35 can be configured to be lightweight, which contributes to weight reduction of the three-sided frame 10. In addition, the operation of bending the first portions 25a1 and 35a1 of the surface materials 25 and 35 with the grooves 26 and 36 as starting points can be easily performed.

  Moreover, the decorative sheet 40 may be affixed on the surface which faces the opposite side to the reinforcement bodies 21 and 31 among each surface material 25 and 35. FIG. In FIG. 7, the example which affixed the decorative sheet 40 on the surface material 25 of the jam horizontal part 20 is shown. In the example shown in FIG. 7, the decorative sheet 40 covers the entire area of the surface of the surface material 25 facing away from the reinforcing body 21. According to such a form, the decorative sheet 40 will be observed by the user who observes the surface material 25 from the opening 9 side, and the design of the three-sided frame 10 can be improved.

  On the other hand, for the reinforcing bodies 21 and 31 of the jam lateral part 20 and the jam upper part 30, various metals that have been conventionally used as members constituting the three-way frame 10 can be used. An example of the material constituting the reinforcing bodies 21 and 31 is, for example, stainless steel.

  Next, the operation of the present embodiment configured as described above will be described with reference to the drawings.

  When the elevator 1 is operating normally, as shown in FIG. 3, the reinforcing body 21 of each jam lateral portion 20 is in contact with the vicinity of the groove where the groove 26 of the surface material 25 is formed, and the surface material 25 is It is reinforced. For this reason, even if the surface material 25 of each jam lateral part 20 is pressed from the opening 9 side, the surface material 25 does not break from the groove 26 as a starting point. Similarly, as shown in FIG. 5, the reinforcing body 31 of the jam upper portion 30 is in contact with the vicinity of the groove where the groove 36 of the surface material 35 is formed, thereby reinforcing the surface material 35. For this reason, even if the surface material 35 of the jam upper portion 30 is pressed from the opening 9 side, the surface material 35 does not break from the groove 36 as a starting point. Therefore, when operating the elevator 1 as usual, each jam lateral portion 20 and the jam upper portion 30 have sufficient strength to withstand use.

  On the other hand, when the landing door 4 is removed due to a disaster or the like, first, a tool such as a bar is inserted between the finding back surface 35d of the surface material 35 of the jam upper portion 30 and the landing door 4 to see the landing door 4. The attached back surface 35d is pulled away from the reinforcing body 31. Thereby, as shown in FIG. 6, the first portion 35 a 1 of the opening surface 35 a of the jam upper portion 30 can be bent downward with respect to the second portion 35 a 2 starting from the groove 36. In the illustrated example, the first portion 35a1 is rotated at least 90 degrees from the groove 36 as a starting point. Thereby, the bolt 4b for fixing the landing door 4 can be accessed from the opening 9 side, and the bolt 4b can be removed. Further, a space for removing the landing door 4 can be secured between the landing door 4 and the jam upper portion 30.

  Next, a tool such as a bar is inserted between the finding back surface 25 d of the surface material 25 of each jam lateral part 20 and the landing door 4, and the finding back surface 25 d is pulled away from the reinforcing body 21. As a result, as shown in FIG. 4, the first portion 25 a 1 of the opening surface 25 a of each jam lateral portion 20 can be bent in the horizontal direction with respect to the second portion 25 a 2 starting from the groove 26. In the illustrated example, the first portion 25a1 is rotated at least 90 degrees from the groove 26 as a starting point. Thereby, the space for removing the landing door 4 can be ensured between the landing door 4 and each jam lateral part 20.

  Thereafter, the landing door 4 is easily removed from the landing 3 side using the space between the landing door 4 and each jam lateral portion 20 and the jam upper portion 30.

  As described above, according to the present embodiment, the jam lateral portions 20 and the jam upper portion 30 are respectively provided with the reinforcing bodies 21 and 31 extending between the hoistway 2 and the landing 3 and the reinforcing bodies 21 and 31. The surface materials 25 and 35 are connected to each other, and the surface materials 25 and 35 are partly bent (first portions 25a1 and 35a1) from other portions (second portions 25a2 and 35a2). It has become. According to such a form, the opening portion 9 is formed in the bolt 4b for fixing the landing door 4 by bending a part 35a1 of the surface material 35 of the jam upper portion 30 with respect to the other portion 35a2 starting from the groove 36. It becomes accessible from the side, and the bolt 4b can be removed. Further, a space for removing the landing door 4 can be secured between the landing door 4 and the jam upper portion 30. On the other hand, by bending a part 25a1 of the surface material 25 of each jam lateral part 20 with respect to the other part 25a2 with the groove 26 as a starting point, the landing doors are provided between the landing door 4 and each jam lateral part 20. A space for removing 4 can be secured. For this reason, the landing door 4 can be easily removed from the landing 3 side using the space between the landing door 4 and each jam lateral portion 20 and the jam upper portion 30.

  Moreover, according to this Embodiment, each surface material 25 and 35 can be bent in the intermediate position of the hoistway 2 and the landing 3. According to such a configuration, the landing door 4 is removed between the landing door 4 and the jam upper portion 30 by bending the surface material 35 of the upper jam portion 30 at an intermediate position between the hoistway 2 and the landing 3. Sufficient space can be secured. Further, a space for removing the landing door 4 between the landing door 4 and each lateral jam 20 by folding the surface material 25 of each lateral jam 20 at an intermediate position between the hoistway 2 and the landing 3. Can be secured sufficiently. For this reason, the landing door 4 can be more easily removed from the landing 3 side.

<< Modification of First Embodiment >>
Note that various modifications can be made to the above-described embodiment. Hereinafter, an example of modification will be described with reference to the drawings. In the following description and the drawings used in the following description, the same reference numerals as those used for the corresponding parts in the above embodiment are used for the parts that can be configured in the same manner as in the above embodiment. A duplicate description is omitted.

  In the first embodiment described above, as shown in FIGS. 3 and 5, the surface materials 25 and 35 of the jam lateral portions 20 and the jam upper portion 30 are folded at intermediate positions between the hoistway 2 and the landing 3. Although the example which can be bent was shown, the structure of each surface material 25 and 35 is not limited to the structure mentioned above. Each surface material of each jam lateral part and jam upper part may be bendable on the landing side. According to such a form, by bending each surface material on the landing side, the landing door 4 can be removed between the landing door and each jam lateral portion and between the landing door and the jam upper portion. A larger space can be secured. For this reason, the landing door 4 can be more easily removed from the landing 3 side.

<< Second Embodiment >>
Next, a second embodiment of the present invention will be described with reference to FIGS. FIGS. 8 and 9 are cross-sectional views for explaining a jam lateral portion of a three-way frame according to the second embodiment of the present invention, and FIGS. 10 and 11 are according to the second embodiment of the present invention. It is sectional drawing for demonstrating the jam upper part of a three-way frame. The second embodiment described with reference to FIGS. 8 to 11 is different in the structure of the surface material of each jam lateral part and the upper part of the jam in the three-way frame. It can be configured in the same manner as the modification. In the following description of the second embodiment and the drawings used in the following description, the first embodiment described above and the parts thereof that can be configured in the same manner as the first embodiment described above and the modifications thereof are described. The same reference numerals as those used for the corresponding parts in the modification are used, and redundant description is omitted.

  As shown in FIGS. 8 and 9, the surface material 125 of each jam lateral portion 120 includes an opening surface 125 a that forms the surface on the opening 9 side and an end portion on the landing 3 side of the opening surface 125 a. A facing surface 125c extending toward the opposite side, a folded surface 125b extending in parallel with the opening surface 125a from the end of the finding surface 125c opposite to the opening surface 125a, and a hoistway of the opening surface 125a It includes a finding back surface 125d that is connected to the end portion on the two sides and arranged to extend in parallel with the finding surface 125c.

  Among these, the opening surface 125a includes a first portion 125a1 located on the hoistway 2 side, a second portion 125a2 located closer to the landing 3 side than the first portion 125a1, a first portion 125a1 and a second portion 125a2. And a bonding material 125a3 disposed adjacent to each other. The bonding material 125a3 connects the first portion 125a1 and the second portion 125a2.

  In the present embodiment, the bonding material 125a3 of the opening surface 125a is made of putty. The putty can join the first part 125a1 and the second part 125a2, but the joining force of the putty is not so great. Therefore, by inserting a tool such as a bar between the finding back surface 125d of the surface material 125 and the landing door 4 and pulling the finding back surface 125d away from the reinforcing body 121, as shown in FIG. 125a1 can be separated from the second portion 125a2 via the bonding material 125a3. Thereby, a space for removing the landing door 4 can be secured between the landing door 4 and the jam lateral portion 120.

  Moreover, the coating film is formed in the surface which faces the opening part 9 side of the opening surface 125a. Thereby, the design of the three-way frame can be improved by hiding the joint between the first portion 125a1 and the bonding material 125a3 and the joint between the second portion 125a2 and the bonding material 125a3.

  In this respect, preferably, the decorative sheet shown in FIG. 7 is affixed to the surface of the surface material 125 facing away from the reinforcing body 121, that is, the surface facing the opening 9 side. Thereby, the joint of the 1st part 125a1 and the joining material 125a3 and the joint of the 2nd part 125a2 and the joining material 125a3 can be hidden more effectively, and the designability of a three-sided frame can be improved.

  On the other hand, as shown in FIG. 8, the reinforcing body 121 of the jam lateral portion 120 is in contact with the bonding material 125 a 3 of the surface material 125 and reinforces the surface material 125. The reinforcing body 121 is fixed to the surface material 125 at a position closer to the landing 3 than the bonding material 125a3. As a specific configuration, the reinforcing body 121 includes a mounting surface 121a attached to the landing wall 8, a contact surface 121b in contact with the bonding material 125a3 of the opening surface 125a, and a connection surface 121c extending from the mounting surface 121a to the contact surface 121b. And a folded surface 121d connected to the end of the contact surface 121b on the landing 3 side and extending in a direction orthogonal to the contact surface 121b.

  Among these, the contact surface 121b of the reinforcing body 121 is in contact with the second portion 125a2 from the first portion 125a1 of the opening surface 125a so as to cover the bonding material 125a3. The contact surface 121b is joined to the second portion 125a2 of the opening surface 125a via an adhesive, for example, and is not fixed to the first portion 125a1 of the opening surface 125a.

  Next, with reference to FIG.10 and FIG.11, the structure of the jam upper part 130 of a three-way frame is demonstrated. It should be noted that the configuration of the jam upper portion 130 of the present embodiment is substantially the same as the configuration of the jam lateral portion 120.

  As shown in FIGS. 10 and 11, each surface material 135 of the jam upper portion 130 includes an opening surface 135 a that forms the surface on the opening 9 side, and an opening 9 from the end of the opening surface 135 a on the landing 3 side. A facing surface 135c extending toward the opposite side, a folded surface 135b extending in parallel with the opening surface 135a from the end of the finding surface 135c opposite to the opening surface 135a, and the hoistway 3 side of the opening surface 135a And a finding back surface 135d arranged so as to extend in parallel with the finding surface 135c.

  Among these, the opening surface 135a includes a first portion 135a1 located on the hoistway 2 side, a second portion 135a2 located on the landing 3 side with respect to the first portion 135a1, a first portion 135a1 and a second portion 135a2. And a bonding material 135a3 disposed adjacent to each other. The bonding material 135a3 connects the first portion 135a1 and the second portion 135a2.

  In the present embodiment, the bonding material 135a3 of the opening surface 135a is made of putty. The putty can join the first part 135a1 and the second part 135a2, but the joining force of the putty is not so great. Therefore, by inserting a tool such as a bar between the found back surface 135d of the surface material 135 and the landing door 4 and pulling the found back surface 135d away from the reinforcing body 131, as shown in FIG. 135a1 can be separated from the second portion 135a2 via the bonding material 135a3. Accordingly, the bolt 4b for fixing the landing door 4 can be accessed from the opening 9 side, and a space for removing the landing door 4 can be secured between the landing door 4 and the jam upper portion 130.

  Moreover, the coating film is formed in the surface which faces the opening part 9 side of the opening surface 135a. Thereby, the design of the three-way frame can be improved by hiding the joint between the first portion 135a1 and the bonding material 135a3 and the joint between the second portion 135a2 and the bonding material 135a3.

  In this respect, preferably, a decorative sheet is attached to the surface of the surface material 135 facing the side opposite to the reinforcing body 131, that is, the surface facing the opening 9 side. Thereby, the joint of the 1st part 135a1 and the joining material 135a3 and the joint of the 2nd part 135a2 and the joining material 135a3 can be hidden more effectively, and the designability of a three-sided frame can be improved.

  On the other hand, as shown in FIG. 11, the reinforcing body 131 of the jam upper portion 130 is in contact with the periphery of the bonding material 135 a 3 of the surface material 135 and reinforces the surface material 135. The reinforcing body 131 is fixed to the surface material 135 at a position closer to the landing 3 than the bonding material 135a3. As a specific configuration, the reinforcing body 131 includes a mounting surface 131a attached to the landing wall 8, a contact surface 131b that contacts the bonding material 135a3 of the opening surface 135a, and a connection surface 131c that extends from the mounting surface 131a to the contact surface 131b. And a folded surface 131d that is connected to the end of the contact surface 131b on the landing 3 side and extends in a direction orthogonal to the contact surface 131b.

  Among these, the contact surface 131b of the reinforcing body 131 is in contact with the second portion 135a2 from the first portion 135a1 of the opening surface 135a so as to cover the bonding material 135a3. Further, the contact surface 131b is joined to the second portion 135a2 of the opening surface 135a via an adhesive, for example, and is not fixed to the first portion 135a1 of the opening surface 135a.

  Since the operation of the present embodiment configured as described above is substantially the same as that of the first embodiment, detailed description thereof is omitted here.

  As described above, according to the present embodiment, the first portion 135a1 of the surface material 135 of the jam upper portion 130 is separated from the second portion 135a2 via the bonding material 135a3, whereby the bolt 4b for fixing the landing door 4 is secured. Can be accessed from the opening 9 side, and the bolt 4b can be removed. Further, a space for removing the landing door 4 can be secured between the landing door 4 and the jam upper portion 130. On the other hand, by separating the first portion 125a1 of the surface material 125 of each jam lateral portion 120 from the second portion 125a2 via the bonding material 135a3, the landing door 4 is interposed between the landing door 4 and each jam lateral portion 120. A space for detaching can be secured. For this reason, the landing door 4 can be easily removed from the landing 3 side using the space between the landing door 4 and each jam lateral portion 120 and the jam upper portion 130.

  In particular, in the present embodiment, the first portion 125a1 of the surface material 125 of each jam lateral portion 120 is separable from the second portion 125a2. In this case, by carrying the separated first portion 125a1 outside the space for removing the landing door 4, the space can be secured more widely. Similarly, the first portion 135a1 of the surface material 135 of the jam upper portion 130 is separable from the second portion 135a2. In this case, by carrying the separated first portion 135a1 outside the space for removing the landing door 4, the space can be secured more widely.

<< Modification of Second Embodiment >>
In the second embodiment described above, as shown in FIG. 8 to FIG. 135a2 and bonding materials 125a3 and 135a3 that connect the first portions 125a1 and 135a1 and the second portions 125a2 and 135a2, and the first portions 125a1 and 135a1 can be separated from the second portions 125a2 and 135a2. However, the configuration of the surface materials 125 and 135 is not limited to the configuration described above. 12 to 15 show other structural examples of the surface material.

  As shown in FIGS. 12 and 13, the surface material 225 of each jam lateral portion 220 includes an opening surface 225 a that forms the surface on the opening 9 side, and an opening 9 from the end of the opening surface 225 a on the landing 3 side. A facing surface 225c extending toward the opposite side, a folding surface 225b extending parallel to the opening surface 225a from the end of the finding surface 225c opposite to the opening surface 225a, and a hoistway of the opening surface 225a And a locating back surface 225d arranged to extend in parallel to the locating surface 225c.

  In the present embodiment, a groove 226 extending in the vertical direction (one direction) is formed between the hoistway 2 side and the landing 3 side in the opening surface 225a of the surface material 225, and the surface material 225 is the groove 226. It can be broken. By the groove 226, the opening surface 225 a is partitioned into a first portion 225 a 1 located on the hoistway 2 side with respect to the groove 226 and a second portion 225 a 2 located on the landing 3 side with respect to the groove 226.

  In the present embodiment, the groove 226 formed on the opening surface 225a of the surface material 225 is not formed on the surface of the opening surface 225a facing the opening 9 side but on the reinforcing body 221. It is formed on the surface on the side. Thereby, since the groove | channel 226 formed in the opening surface 225a is not visually recognized by the user who observes the surface material 225 from the opening part 9 side, the design property of the jam lateral part 220 can be improved.

  On the other hand, as shown in FIG. 12, the reinforcing body 221 of the jam lateral portion 220 is in contact with a portion of the surface material 225 that is closer to the landing 3 than the groove 226, and reinforces the surface material 225. Specifically, the reinforcing body 221 includes an attachment surface 221a attached to the landing wall 8, a contact surface 221b that contacts only the second portion 225a2 of the surface material 225, and a connection surface that extends from the attachment surface 221a to the contact surface 221b. 221c and a folding surface 221d connected to the end of the contact surface 221b on the landing 3 side and extending in a direction orthogonal to the contact surface 221b. Among these, the contact surface 221b of the reinforcing body 221 is joined to the second portion 225a2 of the surface material 225 via an adhesive, for example.

  Further, the joining member 240 is attached adjacent to the first portion 225a1 of the surface material 225 and the connection surface 221c of the reinforcing body 221. The joining member 240 has a dogleg shape in the horizontal cross section and extends along the vertical direction. The joining member 240 is joined to the connection surface 221c of the reinforcing body 221 with a strength that can be removed by a strong impact. As a material constituting such a joining member 240, metal, resin, natural rubber, or the like can be used.

  In addition, as shown in FIG. 12, a space is provided between the hoistway 2 side portion composed of the first portion 225 a 1 and the finding back surface 225 d and the attachment surface 221 a and the connection surface 221 c of the reinforcing member 221. S is formed. And the hoistway 2 side part which consists of the 1st part 225a1 of the surface material 225 and the finding back surface 225d is separated from the 2nd part 225a2, the surface 225c, and the folding surface 225b of the surface material 225 through the groove | channel 226. It can be broken from the landing 3 side portion. At this time, a broken portion formed by the first portion 225a1 and the found back surface 225d of the surface material 225 can be pushed into the space S.

  According to such a form, as shown in FIG. 13, by applying a strong impact to the first portion 225a1 of the surface material 225, the joining member 240 is removed from the reinforcing body 221, and the first portion 225a1 of the surface material 225 is removed. And the hoistway 2 side portion composed of the locating back surface 225d can be broken from the landing 3 side portion composed of the second portion 225a2, the locating surface 225c and the folding surface 225b of the surface material 225 via the groove 226. it can. Thereby, the hoistway 2 side part which consists of the 1st part 225a1 of the surface material 225 and the finding back surface 225d can be pushed in in the space S. Thus, by pushing the hoistway 2 side portion of the surface material 225 into the space S, a space for removing the landing door 4 can be secured between the landing door 4 and the jam lateral portion 220.

  Next, the configuration of the jammed upper portion 230 of the three-way frame will be described with reference to FIGS. 14 and 15. It should be noted that the configuration of the jam upper portion 230 of the present embodiment is substantially the same as the configuration of the jam lateral portion 220.

  As shown in FIGS. 14 and 15, the surface material 235 of the jam upper portion 230 includes an opening surface 235 a that forms a surface on the opening 9 side, and an opening 9 from the end of the opening surface 235 a on the landing 3 side. A facing surface 235c extending toward the opposite side, a folding surface 235b extending in parallel with the opening surface 235a from the end of the finding surface 235c opposite to the opening surface 235a, and the hoistway 2 side of the opening surface 235a And a finding back surface 235d arranged so as to extend parallel to the finding surface 235c.

  In the present embodiment, a groove 236 extending in the horizontal direction (one direction) is formed between the hoistway 2 side and the landing 3 side in the opening surface 235a of the surface material 235, and the surface material 235 is the groove 236. It can be broken. The groove 236 divides the opening surface 235a into a first portion 235a1 located on the hoistway 2 side with respect to the groove 236 and a second portion 235a2 located on the landing 3 side with respect to the groove 236.

  In the present embodiment, the groove 236 formed on the opening surface 235a of the surface material 235 is not formed on the surface of the opening surface 235a facing the opening 9 side but on the reinforcing body 231. It is formed on the surface on the side. Thereby, since the groove | channel 236 formed in the opening surface 235a is no longer visually recognized by the user who observes the surface material 235 from the opening part 9 side, the designability of the jam upper part 230 can be improved.

  On the other hand, as shown in FIG. 14, the reinforcing member 231 of the jam upper portion 230 is in contact with a portion of the surface material 235 that is closer to the landing 3 than the groove 236, and reinforces the surface material 235. Specifically, the reinforcing body 231 includes an attachment surface 231a attached to the landing wall 8, a contact surface 231b that contacts only the second portion 235a2 of the surface material 235, and a connection surface that extends from the attachment surface 231a to the contact surface 231b. 231c and a folding surface 231d connected to the end of the contact surface 231b on the landing 3 side and extending in a direction orthogonal to the contact surface 231b. Among these, the contact surface 231b of the reinforcing body 231 is joined to the second portion 235a2 of the surface material 235 through an adhesive, for example.

  Further, the joining member 250 is attached adjacent to the first portion 235a1 of the surface material 235 and the connection surface 231c of the reinforcing body 231. The joining member 250 has a dogleg shape in the vertical cross section and extends along the horizontal direction. The joining member 250 is joined to the connection surface 231c of the reinforcing body 231 with a strength that can be removed by a strong impact. As a material constituting such a joining member 250, metal, resin, natural rubber, or the like can be used.

  Further, as shown in FIG. 14, a space between the hoistway 2 side portion composed of the first portion 235 a 1 and the back surface 235 d of the surface material 235, and the attachment surface 231 a and the connection surface 231 c of the reinforcing body 231. S is formed. And the hoistway 2 side part which consists of the 1st part 235a1 of the surface material 235 and the finding back surface 235d is separated from the 2nd part 235a2, the finding surface 235c, and the folding surface 235b of the surface material 235 through the groove 236. It can be broken from the landing 3 side portion. At this time, a broken portion formed of the first portion 235a1 and the found back surface 235d of the surface material 235 can be pushed into the space S.

  According to such a form, as shown in FIG. 15, by applying a strong impact to the first portion 235a1 of the surface material 235, the joining member 250 is removed from the reinforcing body 231, and the first portion 235a1 of the surface material 235 is removed. And the hoistway 2 side portion composed of the locating back surface 235d can be broken from the landing 3 side portion composed of the second portion 235a2, the locating surface 235c and the folding surface 235b of the surface material 235 through the groove 236. it can. Thereby, the hoistway 2 side part which consists of the 1st part 235a1 of the surface material 235 and the back surface 235d can be pushed in in the space S. Thus, by pushing the hoistway 2 side portion of the surface material 235 into the space S, the bolt 4b for fixing the landing door 4 can be accessed from the opening 9 side, and the landing door 4 and the jam upper portion 230 During this period, a space for removing the landing door 4 can be secured.

  As described above, the hoistway 2 side portion of the surface material 235 of the upper jam 230 is broken from the landing 3 side portion of the surface material 235 via the groove 236, and the hoistway 2 side portion of the surface material 235 is in the space S. The bolt 4b for fixing the landing door 4 can be accessed from the opening 9 side, and the bolt 4b can be removed. Further, a space for removing the landing door 4 can be secured between the landing door 4 and the jam upper portion 230. On the other hand, the hoistway 2 side portion of the surface material 225 of the surface material 225 of each jam lateral portion 220 is broken from the landing 3 side portion of the surface material 225 via the groove 226, and the hoistway 2 side portion of the surface material 225 is By pushing into the space S, a space for removing the landing door 4 can be secured between the landing door 4 and each jam lateral portion 220. For this reason, the landing door 4 can be easily removed from the landing 3 side using the space between the landing door 4 and each jam lateral portion 220 and the jam upper portion 230.

<< Third Embodiment >>
Next, a third embodiment of the present invention will be described with reference to FIGS. 16 (a) to 16 (c) and FIGS. 17 (a) to (c). 16 (a) to 16 (c) are cross-sectional views showing a three-sided jam lateral portion 320 according to the third embodiment of the present invention, and FIGS. 17 (a) to 17 (c) are views of the present invention. It is sectional drawing which shows the jam upper part 330 of the three-way frame by 3 embodiment. The third embodiment described with reference to FIGS. 16A to 16C and FIGS. 17A to 17C is different in the configuration of the jam lateral portion and the jam upper portion, but the other configurations are as follows. It can be configured in the same manner as the first embodiment and its modifications. In the following description relating to the third embodiment and the drawings used in the following description, the first embodiment described above and the parts thereof that can be configured in the same manner as the first embodiment described above and the modifications thereof are described. The same reference numerals as those used for the corresponding parts in the modification are used, and redundant description is omitted.

  As shown in FIG. 16A, each surface material 325 of the jam lateral portion 320 includes an opening surface 325a that forms a surface on the opening 9 side, and an end portion on the landing 3 side of the opening surface 325a. A facing surface 325c extending toward the opposite side, a folding surface 325b extending parallel to the opening surface 325a from the end of the finding surface 325c opposite to the opening surface 325a, and a hoistway of the opening surface 325a It includes a finding back surface 325d that is connected to the end portion on the second side and arranged to extend in parallel with the finding surface 325c.

  On the other hand, as shown in FIG. 16A, the reinforcing body 321 of the jam upper portion 330 includes an attachment surface 321a attached to the landing wall 8, a contact surface 321b in contact with the opening surface 325a of the surface material 325, and an attachment surface 321a. It includes a connection surface 321c extending to the contact surface 321b and a folded surface 321d connected to the end of the contact surface 321b on the landing 3 side and extending in a direction orthogonal to the contact surface 321b.

  In the present embodiment, as shown in FIG. 16A, the reinforcing body 321 of each jam lateral portion 320 has a fixed surface 321e extending in parallel to the folded surface 325b of the surface material 325 from the end portion of the folded surface 321d. Have. The fixing surface 321e of the reinforcing body 321 is adjacent to the folded surface 325b of the surface material 325, and is joined to the folded surface 325b via an adhesive, for example. On the other hand, the folded surface 325b of the surface material 325 is rotatably connected to the finding surface 325c.

  Unlike the first embodiment, the opening surface 325a of the surface material 325 is not formed with a groove extending in the vertical direction, and the opening surface 325a of the surface material 325 and the contact surface 321b of the reinforcing body 321 are not provided. And is not fixed.

  As shown in FIG. 16B, when the folded surface 325b of the surface material 325 is strongly pressed with a tool such as a bar to rotate the folded surface 325b with respect to the locating surface 325c, the folded surface 325b is reinforced. The fixing of the body 321 with the fixing surface 321e can be released. And as shown in FIG.16 (c), in the state which the folding surface 325b rotated with respect to the finding surface 325c, the surface material 325 becomes movable toward the landing 3 side from the hoistway 2 side. Yes. By moving the surface material 325 from the hoistway 2 side toward the landing 3 side, a space for removing the landing door 4 can be secured between the landing door 4 and the jam lateral portion 320.

  Next, the configuration of the jammed upper portion 330 of the three-way frame will be described with reference to FIGS. Note that the configuration of the jam upper portion 330 of the present embodiment is generally the same as the configuration of the jam lateral portion 320.

  As shown in FIG. 17A, each surface material 335 of the jam upper portion 330 includes an opening surface 335a forming a surface on the opening 9 side, and an opening 9 from the end of the opening surface 335a on the landing 3 side. Has a facing surface 335c extending toward the opposite side, a folded surface 335b extending in parallel with the opening surface 335a from the end of the finding surface 335c opposite to the opening surface 335a, and the hoistway 2 of the opening surface 335a. And a locating back surface 335d arranged to extend in parallel with the locating surface 335c.

  On the other hand, as shown in FIG. 17A, the reinforcing body 331 of the jam upper portion 330 includes an attachment surface 331a attached to the landing wall 8, a contact surface 331b in contact with the opening surface 335a of the surface material 335, and an attachment surface 331a. It includes a connection surface 331c extending to the contact surface 331b and a folded surface 331d connected to the end of the contact surface 331b on the landing 3 side and extending in a direction orthogonal to the contact surface 331b.

  In the present embodiment, as shown in FIG. 17A, the reinforcing body 331 of the jam upper portion 330 has a fixed surface 331e extending from the end of the folded surface 331d in parallel to the folded surface 335b of the surface material 335. ing. The fixing surface 331e of the reinforcing body 331 is adjacent to the folded surface 335b of the surface material 335, and is joined to the folded surface 335b with an adhesive, for example. On the other hand, the folding surface 335b of the surface material 335 is rotatably connected to the finding surface 335c.

  Unlike the first embodiment, the opening surface 335a of the surface material 335 is not formed with a groove extending in the horizontal direction, and the opening surface 335a of the surface material 335 and the contact surface 331b of the reinforcing body 331 are not formed. And is not fixed.

  As shown in FIG. 17B, when the folded surface 335b of the surface material 335 is strongly pressed with a tool such as a bar to rotate the folded surface 335b with respect to the locating surface 335c, the folded surface 335b and the reinforcement are strengthened. The fixing of the body 331 with the fixing surface 331e can be released. And as shown in FIG.17 (c), in the state which the return surface 335b rotated with respect to the finding surface 335c, the surface material 335 becomes movable toward the landing 3 side from the hoistway 2 side. Yes. By moving the surface material 335 from the hoistway 2 side toward the landing 3 side, it becomes possible to access the bolt 4b for fixing the landing door 4 from the opening 9 side, and between the landing door 4 and the jam upper portion 330. In the meantime, a space for removing the landing door 4 can be secured.

  Since the operation of the present embodiment configured as described above is substantially the same as that of the first embodiment, detailed description thereof is omitted here.

  As described above, according to the present embodiment, after turning the folding surface 335b of the surface material 335 of the jam upper portion 330 with respect to the finding surface 335c, the surface material 335 is moved from the hoistway 2 side to the landing 3 By moving toward the side, the bolt 4b for fixing the landing door 4 can be accessed from the opening 9 side, and the bolt 4b can be removed. Further, a space for removing the landing door 4 can be secured between the landing door 4 and the jam upper portion 330. On the other hand, after turning the folding surface 325b of the surface material 325 of each jam lateral part 320 with respect to the finding surface 325c, by moving the surface material 325 from the hoistway 2 side toward the landing 3 side, A space for removing the landing door 4 can be secured between the landing door 4 and each jam lateral portion 320. For this reason, the landing door 4 can be easily removed from the landing 3 side using the space between the landing door 4 and each jam lateral portion 320 and the jam upper portion 330.

  In the above description, in each embodiment, each jam lateral portion and each jam upper portion have a reinforcing body and a surface material, and all have the same structural features, but are limited to such examples. Not. Each jam lateral and upper jam may comprise different structural features. For example, the surface material 35 and the reinforcing body 31 in the first embodiment may be applied to the jam upper portion 30, and the surface material 125 and the reinforcing body 121 in the second embodiment may be applied to the jam lateral portion 20.

2,502 Hoistway 3, 503 Platform 4, 504 Platform door 4b Bolt 5b, 505b L-shaped hanger 8, 508 Platform wall 9,509 Opening 10, 510 Three-way frame 20, 120, 220, 320 Jam lateral 21, 121 221, 321 Reinforcing body 21 b, 121 b, 221 b, 321 b Contact surface 321 e Fixed surface 25, 125, 225, 325 Surface material 25 a, 125 a, 225 a, 325 a Open surface 25 a 1, 125 a 1, 225 a 1 First part 25 a 2, 125 a 2, 225 a 2 2 part 125a3 Joining material 25b, 125b, 225b, 325b Folding surface 25c, 125c, 225c, 325c Finding surface 26, 226 Groove 30, 130, 230, 330 Jam lateral part 31, 131, 231, 331 Reinforcing body 31b, 131b 231b, 331b contact 331e Fixing surface 35, 135, 235, 335 Surface material 35a, 135a, 235a, 335a Opening surface 35a1, 135a1, 235a1 First portion 35a2, 135a2, 235a2 Second portion 125a3 Bonding material 35b, 135b, 235b, 335b Folding surface 35c , 135 c, 235 c, 335 c locating surface 36, 236 groove 240, 250 joining member 40 decorative sheet

Claims (2)

In the three-way frame of the elevator that is installed at the elevator landing toward the hoistway and has a pair of jam lateral portions and a jam upper portion connected to the upper ends of the pair of jam lateral portions,
Each jam lateral part and the jam upper part each have a reinforcing body extending between the hoistway and the landing, and a surface material connected along the reinforcing body,
The surface material extends toward an opposite side of the opening from an opening surface facing an opening surrounded by the pair of jam lateral portions and the jam upper portion, and a landing side end portion of the opening surface. A finding surface, and a folding surface extending from the end of the finding surface opposite to the opening surface in parallel to the opening surface and fixed to the reinforcing body,
The folded surface is rotatable with respect to the finding surface and can be fixed to the reinforcing body,
A three-sided frame of an elevator, wherein the surface material is movable from the hoistway side toward the landing side in a state where the folding surface is rotated with respect to the finding surface. The three-sided frame for an elevator according to claim 1 , wherein a decorative sheet is affixed to a surface of the surface material that faces away from the reinforcing body.