JP7196030B2 - Hanging sliding door frame and manufacturing method thereof - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hanging sliding door frame used for a single sliding door and a manufacturing method thereof.

In general, a single-sliding sliding door has a sliding margin portion that forms a space into which the sliding door is drawn, and an opening that allows the front side and the back side of the sliding door to communicate with each other. The sliding door frame is manufactured as one frame including not only the opening but also the sliding margin.

Sliding doors include a lower rail type in which the door is placed in a groove and slid, and a top suspension type in which the door is suspended from the floor by a hanger rail. The hanging type is popular because it does not have rails on the floor and the floor can be made flat.

Traditionally, sliding door frames were made of wood. A wooden sliding door frame is disclosed, for example, in US Pat.

JP 2017-155470 A

FIG. 1 is an explanatory diagram of a conventional hanging type wooden sliding door frame 31. As shown in FIG. FIG. 1(A) is a longitudinal sectional view, and FIG. 1(B) is a front view. In this figure, the wooden sliding door frame 31 is marked with a dashed diagonal pattern. As shown in FIG. 1A, the hanging door 34 is hung from a hanger rail 33 , and the hanger rail 33 is fixed to the lower surface of the upper frame 32 .

Sliding door frames are generally fixed to surrounding beams, wooden shafts, or the like. In the case of the lower rail type, most of the weight of the sliding door is received by the rail installed on the floor.
However, in the case of the wooden sliding door frame 31 of the hanging type, the load of the hanging door 34 must be received only by the upper frame 32 .

When a constant load is applied to wood for a long period of time, wood may creep, in which the deflection gradually increases. Therefore, in order to prevent the wooden upper frame 32 from bending under the load of the hanging door 34, the upper frame 32 is provided with more reinforcing materials 36 such as wooden shafts than in the case of using the wooden sliding door frame for the lower rail type. had to be reinforced.
For example, in FIG. 1(B), the wooden shaft 35 required to support the wooden sliding door frame for the lower rail type is represented by diagonal lines extending from the lower left to the upper right, and it is necessary to add it to fix the upper frame 32 of the hanging type. A reinforcing member (wooden shaft) 36 with a .
The work of adding such a reinforcing member 36 at the installation site required a great deal of labor.

In addition, the wooden sliding door frame 31 is manufactured by carving the upper end of the wooden vertical frame 37 and the both ends of the upper frame 32 by a carpenter and assembling them. Wood undergoes deformation such as bending, warping, twisting, and expansion and contraction due to changes in moisture content, load, and the like. Such properties of wood vary depending on the type of wood and how the grain is formed. A carpenter is a craftsman who processes and assembles wood at the installation site using advanced techniques based on extensive knowledge and experience regarding wood. Chopping and assembling wood is a work that requires labor and skill, and requires the skills of a skilled carpenter.
In recent years, it has become difficult to manufacture the wooden sliding door frame 31 as the number of skilled building carpenters has decreased.

In addition, when chopped and assembled lumber is transported, there is a possibility that the connections between the lumbers will loosen due to vibrations during transportation. Therefore, conventionally, the wooden sliding door frame 31 could only be manufactured at the installation site.

Furthermore, the wooden sliding door frame 31 is relatively easily damaged because the base material is wood.
Therefore, the inventors of the present application have considered manufacturing the sliding door frame with steel material, carrying the completed sliding door frame to the installation site, and installing it.

FIG. 2 is an explanatory diagram of the hanging sliding door frame 41 whose constituent parts are all made of steel. This hanging sliding door frame 41 was produced by the inventor of the present application for examination. FIG. 2(A) is a plan view, and FIG. 2(B) is a vertical sectional view. FIG. 2(C) is an enlarged view of the Q portion of FIG. 2(B). In FIGS. 2(A) and 2(B), the steel top-hanging sliding door frame 41 is marked with dashed diagonal lines.
As shown in FIGS. 2(A) and 2(C), in the hanging sliding door frame 41, the vertical frame 42, the central mullion 43, and the upper frame 44 are all made of steel.

The following merits (1) to (4) were obtained by making the sliding door frame made of steel, which was conventionally made of wood.
First, since the strength of the upper frame 44 can be ensured by making all the parts steel, (1) it is possible to adopt a hanging type fitting without reinforcing the structure with the reinforcing material 36, and (2) the sliding allowance part. It was possible to make the wall thickness thinner than the wooden sliding door frame 31, and (3) it was possible to reduce the number of flaws pointed out. Furthermore, by making the sliding door frame steel, it was confirmed that (4) the labor of the building carpenter per place can be reduced by about 0.3 manpower compared to the case where the sliding door frame is made of wood.

On the other hand, steel is heavier and more expensive than wood. Therefore, when the wooden sliding door frame 31 is made of steel, the overhead sliding door frame 41 is too heavy, the workability is poor, and the cost of the overhead sliding door frame 41 is increased. .

Therefore, development of a new overhead sliding door frame that can reduce weight and cost while maintaining the advantages (1) to (4) of the above-described steel overhead sliding door frame 41 has been demanded. .

SUMMARY OF THE INVENTION The present invention has been devised to solve the above problems. That is, an object of the present invention is to provide a hanging sliding door frame that can be manufactured at a location other than the installation site, has strength that does not require structural reinforcement, and is lighter than a sliding door frame whose members are all made of steel, and a method for manufacturing the same. is to provide

According to the present invention, a pair of vertical frames;
a mullion extending vertically between the pair of vertical frames;
an upper frame extending in a horizontal movement direction between the pair of vertical frames and between one of the vertical frames and the mullion;
a support member that fixes both ends of the upper frame to the pair of vertical frames,
The upper frame has a wooden core material whose both ends are supported by the vertical frame or the mullion;
and a steel frame extending in the movement direction while covering a part of the peripheral surface of the core material.

Further, according to the present invention, there is provided a method for manufacturing the above-described hanging sliding door frame, comprising:
There is provided a method for manufacturing a top-suspended sliding door frame, including the step of manufacturing the steel frame by bending a flat steel plate along the imaginary folding line extending in the moving direction.

According to the present invention described above, since the connection between the upper frame and the vertical frame is performed using the support material, the step of notching is unnecessary. Therefore, the hanging sliding door frame can be manufactured at a place other than the installation site, and the assembled hanging sliding door frame can be carried to the site. In addition, the assembly of the hanging sliding door frame can be performed by a worker other than the carpenter (for example, a unit worker).
Therefore, the present invention can reduce the labor of skilled carpenters.

In addition, since the upper frame of the present invention is configured such that a part of the peripheral surface of the wooden core material is covered with a steel frame, the steel frame prevents deformation such as bending, warping, and twisting of the core material. The strength of the core material can be reinforced. As a result, the hanging sliding door frame can be installed without using a reinforcing material such as a wooden shaft. Also by this, the labor of the carpenter can be reduced.

In addition, since the steel frame covers only a part of the peripheral surface of the wooden core material, it is possible to reduce the ratio of the steel material to the extent that there is a peripheral surface that is not covered by the steel frame. The total weight of the top-suspended sliding door frame can be made lighter than the sliding door frame made entirely of steel. Therefore, the workability of the overhead sliding door frame is better than that of the overhead sliding door frame whose constituent parts are all made of steel.

Furthermore, the overhead sliding door frame can be manufactured at a lower cost than the overhead sliding door frame whose component parts are all made of steel because the ratio of the steel material is small.

In addition, since the steel frame is manufactured by bending a steel flat plate, the steel frame can be manufactured easily. Moreover, since the flat steel plate is bent along the imaginary polygonal line extending in the movement direction, the section modulus of the steel frame is increased, and the bending rigidity can be enhanced.

It is explanatory drawing of the wooden sliding door frame of the conventional hanging type. FIG. 2 is an explanatory diagram of a top-suspended sliding door frame in which all components are made of steel. It is the front view and cross-sectional view of the sliding door frame for hanging from this embodiment. It is a partial perspective view and a partial longitudinal sectional view of the hanging sliding door frame of the present embodiment. It is sectional drawing of the sliding door frame for top suspension attached to the installation site. It is a perspective view of a long core material, a long frame which covers the peripheral surface of this, and a middle frame. FIG. 4 is a perspective view when the long core member is covered with the long frame and the middle frame. It is a perspective view of a short core material and a steel frame which covers the peripheral surface. It is explanatory drawing about the assembly method of the sliding door frame for hanging.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. In addition, the same code|symbol is attached|subjected to the part which is common in each figure, and the overlapping description is abbreviate|omitted.

FIG. 3 is a front view and a cross-sectional view of the hanging sliding door frame 1 of this embodiment.
FIG. 3A is a front view of the hanging sliding door frame 1. FIG.

As shown in FIG. 3(A), the hanging sliding door frame 1 includes a pair of vertical frames 2 extending vertically, a central mullion 3 extending vertically between the pair of vertical frames 2, and an upper frame 4 extending horizontally. and The vertical frame 2, the central mullion 3, and the upper frame 4 of the hanging sliding door frame 1 constitute a sliding margin portion 1a and an opening portion 1b. The sliding allowance portion 1a is a portion that forms a space for pulling in the hanging door 8. As shown in FIG.
In addition, the code|symbol 18 of this figure is a temporary fixing material. The temporary fixing member 18 is a member for fixing the lower ends of the vertical frame 2 and the central mullion 3 in order to maintain the shape of the sliding door frame 1 for upward suspension when the sliding door frame 1 for upward suspension is transported. In order to maintain the shape of the hanging sliding door frame 1, the temporary fixing member 18 is attached to the lower ends of the vertical frame 2 and the central mullion 3 at the installation site. At that time, the temporary fixing member 18 is used as a receiving member for the floor parting member 19 (see FIGS. 3(B) and 5).

FIG. 3(B) is a sectional view taken along the line DD of FIG. 3(A) when the hanging sliding door frame 1 is installed at the installation site.
The hanging door 8 moves horizontally between the sliding margin portion 1a and the opening portion 1b. In the following description, the horizontal direction in which the hanging door 8 moves is defined as a moving direction 9 .

FIG. 4 is a partial perspective view and a partial longitudinal sectional view of the hanging sliding door frame 1 of this embodiment.
FIG. 4A shows a perspective view of the upper end of the hanging sliding door frame 1. FIG.
The vertical frame 2 and the mullion 3 are steel materials such as shaped steel (channel material, etc.), and all of them are made of metal. Their upper ends are configured so that both ends of the upper frame 4 can be attached with supports 13 .
The upper frame 4 extends in the moving direction 9 between the pair of vertical frames 2 and between one of the vertical frames 2 and the central mullion 3 . The upper frame 4 comprises a wooden core 5 and a steel frame 6 . The upper frame 4 has a structure in which a part of the peripheral surface 5e of a wooden core member 5 extending in the movement direction 9 is covered with a steel frame 6. ) is a hybrid material. The peripheral surface 5 e of the core member 5 is a surface extending parallel to the moving direction 9 among the surfaces constituting the core member 5 .

The core material 5 is a horizontal piece of wood attached to the upper ends of the vertical frame 2 and the central mullion 3 and extending in the moving direction 9 . The core member 5 preferably has a long core member 5a extending from one of the pair of vertical frames 2 to the other, and a short core member 5b extending from one of the vertical frames 2 to the mullion 3. However, the present invention is not limited to this, and the long core member 5a and the short core member 5b may be integrally provided.

4(B) is a vertical cross-sectional view of the R portion of FIG. 3(A), and FIG. 4(C) is a cross-sectional view when the members of FIG. 4(B) are disassembled.
As shown in FIG. 4(C), grooves 12 extending in the moving direction 9 are provided in the bottom surface 5f of the long core member 5a. The groove 12 is provided over the entire length of the long core member 5a, and both ends of the groove 12 are provided with steps 12a. The step 12a is dug to a depth equal to or greater than the thickness of the support member 13 that fixes the ends 5c and 5d of the long core member 5a to the pair of vertical frames 2. As shown in FIG.
Moreover, slits 2a and through-holes 2b are provided at the upper ends of the pair of vertical frames 2, respectively. The slit 2a is a hole through which the support member 13 is passed, and the through hole 2b is a hole through which the wood screw 11 for fastening the support member 13 to the long core member 5a is passed.

As shown in FIG. 4B, the upper frame 4 is fixed to the upper end portion of the vertical frame 2 by placing the groove 12 of the long core member 5a on the support member 13 passing through the slit 2a of the vertical frame 2. be done. Since the step 12a provided in the groove 12 of the long core member 5a is provided in accordance with the thickness of the support member 13, when the support member 13 is fitted in the step 12a, the lower surface of the support member 13 and the bottom surface of the groove 12 are aligned. become flush. A hanger rail 7 is fitted into the groove 12 during use. Since the supporting member 13 is fastened to the long core member 5a with the wood screw 11 and the hanger rail 7 is put thereon, the supporting member 13 is hidden by the hanger rail 7 from the outside (below the upper frame 4). there is

The support member 13 is fastened to both end portions 5c and 5d of the long core member 5a with the vertical frame 2 interposed therebetween by wood screws 11 that pass horizontally through the through holes 2b. As a result, both ends 5c and 5d of the long core member 5a are connected to the vertical frame 2, and the position of the long core member 5a in the height direction with respect to the vertical frame 2 is fixed.

FIG. 5 is a cross-sectional view of the hanging sliding door frame 1 installed at the installation site. FIG. 5A is a cross-sectional view along EE in FIG. 3B, and FIG. 5B is a cross-sectional view along FF in FIG. 3B.
The steel frame 6 is a metal member extending in the movement direction 9 while covering a part of the peripheral surface 5 e of the core member 5 . Of the plurality of steel frames 6 , the steel frame 6 extending from one end 5 c to the other end 5 d of the core member 5 covers three continuous surfaces of the peripheral surface 5 e of the core member 5 . For example, the steel frame 6 may have three frames (long frame 6a, middle frame 6b, opening frame 6c). As shown in this figure, the portion of the peripheral surface 5e of the core member 5 covered with the steel frame 6 is preferably a portion that can be seen from the outside. In this figure, the long frame 6a covers three continuous peripheral surfaces 5e of the long core member 5a, and the opening frame 6c covers three continuous peripheral surfaces 5e of the short core member 5b. The middle frame 6b is a steel frame 6 extending in the movement direction 9 between the long frame 6a and the opening frame 6c.

A hanger rail 7 is fixed to the bottom surface 5f of the core member 5 during use. As shown in this figure, the hanger rail 7 is preferably fixed by being fitted into the groove 12 of the core material 5 . The hanger rail 7 guides the roller 8b provided at the upper end portion 8a of the hanging door 8 in the movement direction 9. As shown in FIG.

FIG. 6 is a perspective view of (A) the long core member 5a, (B) the long frame 6a, (C) the middle frame 6b of the opening 1b, and (D) the middle frame 6b of the stripping margin 1a.
As shown in FIG. 6(A), holes 11a are provided on both end surfaces of both end portions 5c and 5d of the long core member 5a, which become vertical surfaces when the hanging sliding door frame 1 is installed at the installation site. ing. This hole 11a is for screwing in the wood screw 11 for fixing the support member 13 without breaking the wood constituting the long core member 5a.
In addition, although the side surface 5h of the core member 5 in this figure is shown as a flat surface, the side surface 5h may be configured by a curved surface.

As shown in FIG. 6B, the long frame 6a is a steel member having a U-shaped cross-section taken along a vertical plane perpendicular to the moving direction 9. As shown in FIG. With this shape, the long frame 6a covers the top surface 5g, the bottom surface 5f, and the side surfaces 5h continuous to the top surface 5g and the bottom surface 5f in the peripheral surface 5e of the long core member 5a.
If the side surface 5h of the core material 5 is curved, the steel frame 6 is preferably curved at a portion in contact with the curved surface and bent along the curved surface of the core material 5. As shown in FIG.

As shown in FIGS. 6(C) and 6(D), it is preferable that the middle frame 6b is divided into two parts, one on the side of the sliding margin and the other on the side of the opening. Each inner frame 6b has a bottom surface 14a covering the bottom surface 5f of the long core member 5a and a first vertical surface 14b covering the side surface 12b of the groove 12 and perpendicular to the bottom surface 14a.
The middle frame 6b on the side of the pulling margin shown in FIG. 6(D) is a steel member having a U-shaped cross section taken along a vertical plane perpendicular to the moving direction 9. As shown in FIG. The middle frame 6b has a second vertical surface 14c continuous with the bottom surface 14a and parallel to the first vertical surface 14b. The parallel first vertical surface 14b and second vertical surface 14c, and the bottom surface 14a perpendicular thereto form the U-shaped cross-sectional shape of the middle frame 6b.

FIG. 7 is a perspective view when the long core member 5a is covered with the long frame 6a and the middle frame 6b. 7A and 7B are views viewed from different directions.
The steel frame 6 extends in the movement direction 9 while covering part of the peripheral surface 5e of the core member 5. As shown in FIG.
As shown in FIG. 7A, the long frame 6a extends from one end 5c to the other end of the long core material 5a while covering the peripheral surfaces 5e (top surface 5g, bottom surface 5f, side surface 5h) of the long core material 5a. It extends in the direction of movement 9 up to the portion 5d. The long frame 6a is preferably manufactured by bending a flat metal plate so as to wrap around the peripheral surface 5e of the long core 5a.

As described above, in the hanging sliding door frame 1, the long frame 6a has a U-shape covering the upper surface 5g, the bottom surface 5f, and the side surface 5h of the long core member 5a, and sandwiches the upper and lower sides of the long core member 5a. Therefore, even if the weight of the hanging door 8 acts on the long core member 5a for a long period of time and the creep phenomenon causes the long core member 5a to distort downward, the long core member 5a cannot be bent. Therefore, the hanging sliding door frame 1 can prevent the bending of the upper frame 4 by the load of the hanging door 8. - 特許庁
Also, as described above, the lumber may bend, warp, or twist due to changes in the moisture content. However, since the top-suspended sliding door frame 1 covers three continuous surfaces of the core material 5 with the steel frame 6, even if the covering range is a part of the peripheral surface 5e of the core material 5, the wooden core material 5 can be prevented from being warped or twisted.

As shown in FIGS. 7(A) and 7(B), the inner frame 6b on the side of the stripping portion has the first vertical surface 14b and the second vertical surface 14c, the stripping portion 1a of the long core member 5a. A portion of the bottom surface 5f is sandwiched, and the shape of the long core member 5a in the sandwiched portion is fixed.

With this configuration, with respect to the stripping portion 1a of the long core material 5a, the middle frame 6b sandwiches a part of the long core material 5a in the horizontal direction 15 orthogonal to the movement direction 9, so that the long core material in the horizontal direction 15 is held. Deformation of 5a can be prevented.

FIG. 8 is a perspective view of the short core member 5b and the steel frame 6 covering its peripheral surface 5e. FIG. 8A is a perspective view of each of the short core member 5b, the opening frame 6c, and the opening-side middle frame 6b. FIG. 8B is a perspective view of the short core member 5b covered with the opening frame 6c.
As described above with reference to FIG. 5, a part of the peripheral surface 5e of the short core member 5b is covered with the opening frame 6c and the middle frame 6b.
The opening frame 6c has a U-shape covering the upper surface 5g, the bottom surface 5f and the side surface 5h of the short core member 5b.

As shown in FIG. 8(B), the opening frame 6c covers the top surface 5g, the bottom surface 5f, and the side surface 5h continuous to the top surface 5g and the bottom surface 5f of the peripheral surface 5e of the short core member 5b. It extends in the moving direction 9 from one end 5c of the material 5b to the other end 5d. With this configuration, the opening frame 6c sandwiches the upper and lower sides of the short core material 5b with its U-shape, so that the short core material 5b can be prevented from bending, warping, twisting, and the like.

FIG. 8(C) is a perspective view of the long core member 5a covered with the long frame 6a and the middle frame 6b.
As indicated by diagonal lines in this figure, the bottom surface 14a of the middle frame 6b of the opening 1b extends toward the short core member 5b. The hatched bottom surface 14a of the inner frame 6b covers a portion of the bottom surface 5f of the short core member 5b (the checkered portion in FIG. 8B). As a result, when viewed from below the upper frame 4, the outer appearance looks as if the long core members 5a and the short core members 5b are integrally molded continuously.

In addition, on the bottom surface 14a of the middle frame 6b, the long core member 5a and the short core member 5b are in close contact with each other, and the horizontal direction 15 of the side surface 5h that is continuous with the top surface 5g and the bottom surface 5f of the long core member 5a and the short core member 5b. is fixed by the long frame 6a and the opening frame 6c. Therefore, it is possible to suppress the occurrence of warp or twist between the opening 1b of the long core material 5a and the short core material 5b.

Next, a method for manufacturing the hanging sliding door frame 1 will be described. It is preferable that the top-suspended sliding door frame 1 is manufactured at a place other than the installation site (hereinafter referred to as a factory or the like) and the completed top-suspended sliding door frame 1 is carried to the installation site. However, not limited to this, the hanging sliding door frame 1 may be manufactured at the installation site.

First, each member of the vertical frame 2, the central mullion 3, and the upper frame 4 is manufactured.
The vertical frame 2 and the mullion 3 are manufactured by cutting a steel material such as shaped steel (such as a channel material) into required lengths and shapes and providing holes required for assembly. The holes provided in the vertical frame 2 include, for example, a slit 2a for inserting the support member 13, and a through hole 2b for the wood screw 11 for fastening the support member 13 to the core member 5 to pass through the vertical frame 2, and the like.

The upper frame 4 is manufactured by the following first manufacturing process to fifth manufacturing process. The order of the first manufacturing process and the second manufacturing process is random. The first to third manufacturing steps of the upper frame 4 will be described with reference to FIGS. 6, 7 and 8. FIG.
In the first manufacturing process, the core material 5 of the upper frame 4 is manufactured.
As shown in FIGS. 6 and 8(A), the core 5 of the upper frame 4 is manufactured by cutting a piece of wood into a required shape (long core 5a and short core 5b). A groove 12 extending in the movement direction 9 is provided on the bottom surface 5f of the long core member 5a. A step 12 a corresponding to the thickness of the support member 13 is provided at both ends of the groove 12 in the movement direction 9 .
Holes 11a for screwing wood screws 11 are provided in both ends 5c and 5d of the long core member 5a.

In the second manufacturing process, the steel frame 6 is manufactured.
The steel frame 6 is preferably manufactured by bending a flat steel plate cut to the required shape along imaginary folding lines 17 extending in the direction of movement 9 . However, it is not limited to this, and may be manufactured by cutting a steel material such as a shaped steel (channel material, etc.). Alternatively, it may be manufactured by connecting a plurality of flat plates by welding. The steel frame 6 is provided along the peripheral surface 5 e of the core material 5 .

In the third manufacturing process, as shown in FIGS. 7 and 8B, the U-shaped portion of the steel frame 6 is fitted to the core material 5, and the core material 5 and the steel frame 6 are joined together. combine. Since a downward load is not applied to the steel frame 6 fitted to the core member 5, the steel frame 6 may be fixed to the core member 5 by adhesion, for example. However, not limited to this, the steel frame 6 may be fixed to the core member 5 by other methods.
Specifically, the long frame 6a is fitted to the long core member 5a (FIG. 7(A)), and the opening frame 6c is fitted to the short core member 5b (FIG. 8(B)).

The U-shaped portion of the middle frame 6b on the pulling margin side is fitted from below to the pulling margin portion 1a of the long core member 5a and adhered. The inner frame 6b on the opening side is also adhered to one end side of the long core member 5a so as to be continuous with the inner frame 6b on the pulling margin side. At this time, the bottom surface 14a of the inner frame 6b on the opening side protrudes from the long core member 5a (hatched portion in FIG. 8(C)). Next, the bottom surface 5f of the short core member 5b (the checkered portion in FIG. 8(B)) is attached to the bottom surface 14a (hatched portion in FIG. 8(C)) of the opening 1b of the middle frame 6b projecting from the long core member 5a. Place and glue.

The fourth and fifth manufacturing steps of the upper frame 4 are performed after the combination of the core member 5 and the steel frame 6 and the vertical frame 2 are combined.
FIG. 9 is an explanatory diagram of a method for assembling the top-suspended sliding door frame 1. As shown in FIG.

The long core member 5a and the vertical frame 2 are connected via the supporting member 13. As shown in FIG. The support member 13 may be, for example, a steel angle (for example, an L-shaped angle, etc.) formed by bending a flat plate at right angles.
First, the supporting members 13 are inserted into the slits 2a of the pair of vertical frames 2, and the grooves 12 of the long core members 5a are placed on the supporting members 13 projecting from the slits 2a of the vertical frames 2. As shown in FIG. Since the support member 13 has a shape bent at right angles, part of the downward load applied to the long core member 5a becomes a force that presses the support member 13 against the vertical frame 2. 2 are made of steel and are hard, the position of the upper frame 4 is fixed at a position where the bottom surface of the groove 12 is at the height of the slit 2a of the vertical frame 2. Further, most of the downward load applied to the long core member 5a is applied to the opening of the slit 2a of the vertical frame 2 via the support member 13. As shown in FIG. Since the vertical frame 2 and the supporting member 13 are made of metal and strong, they can sufficiently support the upper frame 4 even if the hanging door 8 is heavy.

A support member 13 is fitted into the step 12a provided in the groove 12 of the long core member 5a, and the support member 13 and the vertical frame 2 are fastened with wood screws 11 to both ends 5c and 5d of the long core member 5a. The wood screw 11 passes through the support member 13 and the through hole 2b of the vertical frame 2 and is screwed into the hole 11a provided in the long core member 5a.

The vertical frame 2 and the central mullion 3 are connected to the short core member 5b by fastening with wood screws 11 through the through holes 2b provided in the vertical frame 2 and the central mullion 3. As shown in FIG.

Then, the fourth manufacturing process of the upper frame 4 is performed.
This step is a step of fixing the hanger rail 7 to the groove 12 of the long core member 5a.
The hanger rail 7 is fitted into the groove 12 of the long core member 5a and fastened to the long core member 5a with wood screws 11. - 特許庁As shown in FIG. 5, the wood screw 11 preferably penetrates the long core member 5a and reaches the beams and the wooden shaft 35 around the hanging sliding door frame 1. As shown in FIG.

The fifth manufacturing process of the upper frame 4 is a process of fixing the short core members 5b to the surrounding beams and wooden shafts 35. As shown in FIG. It should be noted that this step is preferably performed at the installation site.
A wood screw 11 is vertically screwed between two grooves 16a on the bottom surface 5f of the short core member 5b. This wood screw 11 has a length that vertically penetrates the short core member 5b.
Next, the upper ends of the blindfold members 16 are inserted into the two grooves 16a to hide the heads of the wood screws 11.例文帳に追加

As a result, the wooden core material 5 cannot be seen from the outside of the hanging sliding door frame 1 (below the upper frame 4), and the appearance can be arranged.
Further, since the core material 5 of the upper frame 4 is made of the same material as the surrounding beams and wooden shafts 35, the upper frame 4 can be fixed with the wood screws 11 which are easier to handle than the tapping screws.

Next, the effect of the hanging sliding door frame 1 will be described.
(Labor saving for carpenters)
Since the upper frame 4 and the vertical frame 2 are fixed by the support member 13, the members of the hanging sliding door frame 1 such as the vertical frame 2, the middle mullion 3 and the upper frame 4 can be manufactured in a factory or the like.
Further, the support member 13 and the vertical frame 2 are made of metal, and even if the connection becomes loose due to vibration during transportation, they can be firmly connected again by retightening the wood screws 11. Therefore, they can be assembled in advance at a factory or the like. , the hanging sliding door frame 1 can be carried into the installation site.

Therefore, compared with the case where the wooden sliding door frame 31 is used, the labor of building carpenters whose absolute number tends to decrease due to aging is reduced by 0.3 labor per place (0.1 labor for carving + 0.2 labor for assembly). can do.

(reduction of scratches)
Of the members that make up the top-hanging sliding door frame 1, the parts that can be seen after installation (vertical frame 2, middle stand 3, steel frame 6, hanger rail 7) are made of steel, so they are less likely to be damaged than the conventional wooden sliding door frame 31. The number of indications can be reduced. For example, in an experiment, the number of hanging sliding door frames 1 could be reduced to 25% to 30% of the number of wooden sliding door frames 31 .

(Compatible with hanger rail fittings without reinforcement)
The core material 5 of the upper frame 4 is made of lumber cheaper than steel, the core material 5 and the steel frame 6 are integrated to form the upper frame 4, and the support material for fixing the upper frame 4 and the vertical frame 2.例文帳に追加Since 13 is provided, it is possible to reduce the manufacturing cost and eliminate the need to add a reinforcing member 36 such as a wooden shaft.
Through experiments, it has been confirmed that the hanging sliding door frame 1 has strength enough to pass a repeated opening/closing test of 100,000 times without adding a reinforcing member 36 such as a wooden shaft. Due to this strength, the wall thickness of the sliding margin portion 1a can be made as thin as possible with the steel overhead sliding door frame 41 .

According to the present invention described above, since the upper frame 4 and the vertical frame 2 are connected by using the support member 13, the step of notching is unnecessary. Therefore, the member of the hanging sliding door frame 1 can be manufactured at a place other than the installation site such as a factory, and the assembled hanging sliding door frame 1 can be carried to the site. In addition, the assembly of the hanging sliding door frame 1 can be performed by workers other than carpenters (for example, unit workers).
Therefore, the present invention can reduce the labor of skilled carpenters.

In addition, since the upper frame 4 of the present invention has a structure in which a part of the peripheral surface 5e of the wooden core 5 is covered with the steel frame 6, the steel frame 6 prevents the core 5 from bending, warping, twisting, Such deformation can be prevented, and the strength of the core material 5 can be reinforced. Thereby, the hanging sliding door frame 1 can be installed without using a reinforcing member 36 such as a wooden shaft. Also by this, the labor of the carpenter can be reduced.

Furthermore, since the portion of the peripheral surface 5e of the core member 5 that can be seen from the outside is covered with the steel frame 6, the portion of the upper frame 4 made of wood (the core member 5) is not exposed to the outside. The vertical frame 2 and the mullion 3 are also made of steel. Therefore, the hanging sliding door frame 1 can reduce the number of defects after installation compared to the case where the wooden sliding door frame 31 is used.

In addition, since the steel frame 6 covers only a part of the peripheral surface 5e of the wooden core 5, the portion of the peripheral surface 5e that is not covered by the steel frame 6 reduces the proportion of the steel material. Therefore, the total weight of the hanging sliding door frame 1 can be made lighter than that of the sliding door frame 41 made entirely of steel. Therefore, the workability of the top-suspended sliding door frame 1 is better than that of the top-suspended sliding door frame 41 whose constituent parts are all made of steel.

Furthermore, the overhead sliding door frame 1 can be manufactured at a lower cost than the overhead sliding door frame 41 whose constituent parts are all made of steel, because the ratio of the steel material is small.

In addition, although the steel frame 6 covers only a part of the peripheral surface 5e of the core material 5, the portion covered by the steel frame 6 consists of three continuous surfaces. The steel frame 6 can avoid deformation such as bending, warping, and twisting.

Further, since the steel frame 6 is manufactured by bending a steel flat plate, the steel frame 6 can be manufactured easily. In addition, since the flat steel plate is bent along the imaginary folding line 17 extending in the movement direction, the section modulus of the steel frame 6 is increased and the bending rigidity can be enhanced.

It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

1 upper hanging sliding door frame, 1a sliding margin, 1b opening,
2 vertical frame, 2a slit, 2b through hole,
3 middle mullion, 4 upper frame,
5 core material, 5a long core material, 5b short core material,
5c one end of core material, 5d other end of core material,
5e peripheral surface of core material, 5f bottom surface of core material,
5g upper surface of the core material, 5h side surface of the core material,
6 steel frame, 6a long frame, 6b middle frame, 6c opening frame,
7 hanger rail, 8 hanging door, 8a upper end, 8b roller,
9 movement direction, 11 wood screw, 11a hole,
12 groove on bottom surface of core material, 12a step, 12b side surface of groove,
13 support material,
14a the bottom surface of the middle frame, 14b the first vertical surface of the middle frame,
14c the second vertical face of the middle frame;
15 horizontal direction perpendicular to the direction of movement;
16 blindfold member, 16a groove,
17 virtual polygonal line, 18 temporary fixing material, 19 floor parting material,
31 Conventional hanging type wooden sliding door frame,
32 conventional wooden upper frame, 33 conventional clothes rail,
34 conventional hanging door,
35 The wooden shafts required to support the wooden sliding door frame for the lower rail type,
36 stiffeners, 37 conventional wooden vertical frames,
41 Steel top-hanging sliding door frame,
42 vertical frame, 43 middle mullion, 44 upper frame

Claims (5)

a pair of vertical frames;
a mullion extending vertically between the pair of vertical frames;
an upper frame extending in a horizontal movement direction between the pair of vertical frames and between one of the vertical frames and the mullion;
a support member that fixes both ends of the upper frame to the pair of vertical frames,
The upper frame has a wooden core material whose both ends are supported by the vertical frame or the mullion;
a steel frame extending in the moving direction while covering a part of the peripheral surface of the core material ;
The vertical frame and the support member are made of steel,
The vertical frame has a slit extending in a horizontal direction orthogonal to the movement direction at its upper end,
The support member has a shape having two orthogonal planes in which a flat plate is bent at right angles,
one plane of the support material passes through the slit and the both ends of the core material are placed thereon;
The other plane of the supporting member extends above the slit and is fastened to the both ends of the core member with wood screws with the vertical frame interposed therebetween . 2. The steel frame extending from one end of the core member to the other end of the plurality of steel frames covers three continuous surfaces of the peripheral surfaces of the core member extending in the moving direction. Sliding door frame for top suspension described in . 3. The top-hung sliding door frame according to claim 2, wherein the three sides include a top surface, a bottom surface, and a side surface continuous with the top surface and the bottom surface. The top-suspended sliding door frame according to any one of claims 1 to 3, wherein the steel frame covers a peripheral surface of the core member that is visible from the outside. A method for manufacturing a top-hanging sliding door frame according to any one of claims 1 to 4 ,
A method for manufacturing a top-suspended sliding door frame, comprising the step of manufacturing the steel frame by bending a steel flat plate along an imaginary folding line extending in the moving direction.

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