JP7160976B2 - assist door - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assist door that has a door that is suspended in a door frame and slides to assist the movement of the door.

Conventionally, as this type of assist door, as shown in Patent Document 1, for example, a hanging door rail is provided on the upper side of the door, and a hanging wheel that moves with the door suspended is movably accommodated in the hanging door rail. 2. Description of the Related Art In a top-hung type sliding door in which a door is slid by movement of a hanging wheel, a sliding door is known in which the hanging wheel is driven by a linear motor device in a hanging door rail to assist the movement of the door.

Japanese Patent No. 6418565

By the way, a top-hung type sliding door has a three-sided door frame with left and right vertical frames and an upper frame. The door is suspended. Two suspension wheels are usually fixed to the left and right ends of the door (the ends in the width direction of the door). The reason why these two hanging wheels are fixed to the right and left ends of the door is that when the hanging wheels are attached to the door, a notch is processed in the upper part of the door and the hanging wheel is accommodated in the notch. If the excavation is large, a member for fixing the hanging wheel is required separately, which not only increases the labor of construction by that amount, but also causes a problem that the door strength of the portion of the door where the hanging wheel is not fixed is reduced. . Therefore, in order to minimize the processing of digging in the upper part of the door and to make the size that the fixed part of the hanging wheel fits exactly, the hanging wheel is fixed to the left and right ends of the door, which causes the above problem. are avoiding.

On the other hand, a door storage groove is formed in the inner surface of the vertical frame (the surface on the opposite vertical frame side), and when the door is in the closed position, the door tip side end is stored in the door storage groove. In order to block light and air leakage from the gap, no gap is formed between the edge of the door and the vertical frame.

Therefore, the hanging door rail for suspending the hanging wheel extends into the door housing groove of the vertical frame so that the end portion is positioned in the door housing groove. The hanging wheel is supported by the hanging door rail even when the door is housed in the door housing groove.

However, if not only the suspension wheel but also an assist device such as a linear motor device for driving the suspension wheel is accommodated in the hanging door rail as in the assist door of the above-mentioned Patent Document 1, the front and rear of the suspension door rail will be increased accordingly. The width (depth) is larger than that of one that contains only the suspension wheel without the assist device. Therefore, in order to place the end of the hanging door rail in the door storage groove of the vertical frame, it is necessary to widen the width of the door storage groove. There arises a problem that the size of the frame increases and the external appearance deteriorates.

If the end of the hanging door rail with a large front-to-rear width is arranged outside the door-accommodating groove of the vertical frame, the above problem does not occur, but the length of the hanging door rail becomes shorter than the movement range of the hanging door, and the door cannot move. When the end on the door tip side is accommodated in the door accommodation groove, there is a risk that the hanging wheel may fall off from the end of the hanging door rail.

The present invention has been made in view of the above problems, and its object is to improve the structure of the assist door so that the ends of the hanging door rail with a large front-to-rear width can be accommodated in the door accommodating groove of the vertical frame by accommodating an assist device. While adopting a structure in which the hanging wheel is not arranged in the closed position, when the end of the door tip side of the door in the closed position is stored in the door storage groove, the hanging wheel is supported by the hanging door rail from the end without falling off. It is to be

In order to achieve the above object, in the present invention, the mounting position of the hanger relative to the door is intentionally displaced inward from the end face of the door on the door tip side.

Specifically, the first invention includes a door frame connected between the upper parts of left and right vertical frames by bringing the left and right ends of the upper frame into contact with the vertical frame, and a door frame arranged in the door frame. The object of the present invention is an assist door that is suspended from the upper frame and includes a door that is slidable in the left-right direction, and that assists the sliding movement of the door.

In this assist door, the door frame has an inset structure constructed in the opening of the wall, and a hanging door rail is attached to the lower surface of the upper frame. and an assist device for driving the hanging wheel and assisting the sliding movement of the door. At least one of the vertical frames faces the vertical frame. On the inner surface of the other vertical frame side, a door receiving groove for receiving the door tip side end portion at the closed position of the door is formed so as to extend at least to the position of the lower surface of the upper frame, and the hanging door rail has a rail width The end portion is wider than the groove width of the door accommodating groove and abuts on or is close to a position within the height range of the door accommodating groove on the inner surface of the vertical frame on the lower side of the upper frame . It has a moving part that moves within the door rail and a fixed part that is connected to the moving part so as to hang down. The suspension wheel is attached to the fixed portion of the suspension wheel by a predetermined distance so that the suspension wheel does not drop off from the end of the hanging door rail when the door tip side end of the door is accommodated in the door storage groove. It is characterized in that the end face is mounted at an inner position deviated inward in the door width direction from the end face of the door tip side of the door.

In this first invention, the door frame has an inset structure constructed in the opening of the wall, and the hanging wheel moves within the hanging door rail attached to the lower surface of the upper frame of the door frame. The lowered door slides in the horizontal direction within the door frame to open and close the opening in the door frame, and the sliding movement of the door is assisted by an assist device within the hanging door rail.

The rail width of the hanging door rail is wider than the groove width of the door accommodating groove of the vertical frame, and the end of the hanging door rail is within the height range of the door accommodating groove on the inner surface of the vertical frame on the lower side of the upper frame. abutting or proximate to a position; Therefore, even if the front-to-rear width (rail width) of the hanging door rail is increased by accommodating not only the suspension wheel but also the assist device inside, the groove width of the door storage groove of the vertical frame must be adjusted to accommodate the ends. There is no need to widen the vertical frame, and the front and rear width (depth) of the vertical frame can be small, so that the door frame does not become large and the external appearance does not deteriorate.

In addition, since the end of the hanging door rail is arranged outside the door storage groove of the vertical frame, when the door tip side end is stored in the door storage groove at the closed position of the door, the suspension wheel is normally suspended. Although there is a risk of falling off from the end of the door rail, in the present invention, the end surface of the fixed portion of the hanging wheel on the door tip side is shifted inward in the door width direction by a predetermined distance from the end surface of the door on the door tip side. Since it is attached, even when the edge of the door on the door tip side is housed in the door housing groove, the suspension wheel does not come off from the end of the hanging door rail outside the door housing groove of the vertical frame.

When a conventional general hanging wheel that is attached to the groove of the door is used as the hanging wheel, the groove for fixing one of the hanging wheels is made deeper toward the center in the width direction of the door , and the fixing part of the hanging wheel is made deeper. Only by changing the position of the end face on the door tip side, the mounting position of the hanging wheel can be shifted, and the mounting position can be easily changed while using a conventional general hanging wheel.

By these means, in an assist door with an inset structure, it is possible to prevent an increase in the front-rear width (depth) of the vertical frame and to prevent the hanging wheel from falling off when the door is accommodated in the door accommodation groove at the end of the door on the door tip side. can be done.

In a second aspect of the invention, in the assist door of the first aspect, a mounting recess is formed in the end surface of the door tip side of the door for fitting and mounting the fixing portion of the hanging wheel , and the depth of the mounting recess in the left-right direction is is larger than the lateral thickness of the fixing portion of the hanging wheel, and the fixing portion of the hanging wheel is fitted and fixed in the mounting recess with a space formed between it and the edge of the door on the door tip side. and the space portion is filled with a cap member.

In the second aspect of the invention, the mounting recess is formed in the end face of the door tip side of the door, and the fixing portion of the hanging wheel is fitted into the mounting recess to be mounted, and the door is slidably moved on the hanging door rail via the hanging wheel. supported as possible. Since the lateral depth of the mounting recess on the end face of the door on the door tip side is greater than the thickness in the lateral direction of the fixing part of the hanging wheel, the fixing part of the hanging wheel is positioned between the door tip side end face of the door and the mounting recess. They are fitted and fixed with a space formed. Due to the fixed structure in which this space is formed, the hanger wheel is attached to the inner side of the door at a predetermined distance away from the end face of the door, and the end of the door on the door end is accommodated in the door receiving groove. A structure is specifically obtained in which the hanging wheel falls off from the end of the hanging door rail outside the door receiving groove of the vertical frame in this state. In addition, since the space is filled with the cap member, it is possible to prevent the space from being exposed and to cause discomfort, thereby improving the appearance.

A third invention is the assist door according to the first or second invention, wherein the assist device comprises a stator fixed to the hanging door rail and a mover driven by the stator and integrally connected to the hanging wheel. and a controller for controlling the operation of the mover by means of a stator to control the assisting force during sliding movement of the door.

In the third aspect of the invention, when the door at the closed position is opened or the door at the open position is closed, the linear motor device as the assisting device operates, and the stator is controlled by the controller to move the mover. is controlled, and along with that, the movement of the hanging wheel and the door that are integrally connected to the mover are also controlled. This assists the sliding movement of the door.

As described above, according to the present invention, the door is slidably suspended on the hanging door rail of the upper frame of the door frame provided with the vertical frame and the upper frame, and the sliding movement is assisted. In an assist door consisting of a sliding door, the width of a hanging door rail is made larger than the groove width of a door accommodating groove formed in a vertical frame on the door tip side and accommodating the door tip side end of a door in a closed position, A hanging wheel having a moving part that moves within the hanging door rail and a fixed part that is connected to the moving part so as to hang down from the moving part that has the end of the hanging door rail located outside the door storage groove It is attached so that the front end face is located at an inner position shifted inward by a predetermined distance from the door tip side end face of the door, and even when the door tip side end part of the door is accommodated in the door accommodation groove, the end face of the hanging door rail does not I made sure it didn't fall off. As a result, the longitudinal width of the vertical frame is prevented from becoming large, and the increase in the size of the door frame and deterioration in appearance can be avoided. It is possible to prevent the hanging wheel from falling off and improve the operation reliability of the assist door.

FIG. 1 is a front view showing the overall configuration of an assist door according to an embodiment of the invention. FIG. 2 is a horizontal sectional view showing an enlarged overall configuration of the assist door. FIG. 3 is a vertical cross-sectional view showing an enlarged overall configuration of the assist door. FIG. 4 is an exploded perspective view showing the overall configuration of the assist door. FIG. 5 is an exploded perspective view of the door frame including the mullion. FIG. 6 is a plan view showing the lintel as seen from below. FIG. 7 is a perspective view showing a state in which the hanging door rail is attached to the lower surface of the lintel. FIG. 8 is an enlarged perspective view showing a state in which the suspension wheel of the hanging door rail is attached to the attachment recess of the door. FIG. 9 is a front view showing a state in which the left and right hanging wheels are connected to move integrally by the mover of the linear motor device. FIG. 10 is a perspective view showing the connection structure of the power supply wiring to the linear motor device in the hanging door rail with the hanging door rail removed from the lintel. FIG. 11 is a front view showing the connection structure of the power wiring to the linear motor device in the hanging door rail. FIG. 12 is a perspective view showing a wiring insertion hole formed by a notch portion at the end of the lining and the vertical frame. FIG. 13 is a perspective view showing a state in which a wiring drill hole is formed in the lintel from the wiring insertion hole between the notch portion of the lintel end and the vertical frame. FIG. 14 is a plan view showing a wiring insertion hole between the notch at the end of the lintel and the vertical frame, and a drill hole for power supply wiring formed in the lintel. FIG. 15 is a side view of the vertical frame on the side of the door. FIG. 16 is an enlarged horizontal cross-sectional view showing the positional relationship between the door receiving groove of the door tip side vertical frame and the hanging door rail. FIG. 17 is an enlarged cross-sectional view showing a state in which the door-end-side suspension wheel is attached to an inner position deviated from the door-end-side end face of the door by a predetermined distance. FIG. 18 is a perspective view showing a state in which the cap member is filled in the space between the fixed portion of the door-end-side hanger attached to the mounting recess of the door-end-side end surface of the door and the door-end-side end surface of the door. .

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The following descriptions of the embodiments are merely exemplifications in nature, and are not intended to limit the invention, its applications, or its uses at all.

1 to 3 show the overall construction of an assist door A according to an embodiment of the invention. This assist door A consists of a single sliding door with an inset structure constructed in an opening in a wall of a building. Specifically, as shown in FIGS. 7 and 10, for example, left and right pillars 1, 1 and a horizontal member installed between the middle portions in the height direction of the pillars 1, 1 on the wall of the building An opening 4 surrounded by a lintel 2 and a floor 3 is formed, and a door frame 10 of an assist door A is constructed in the opening 4 with an inset structure. In the description, one side partitioned by the wall portion will be referred to as the "front" side, and the other side will be referred to as the "rear" side. explain. The front and rear directions are also shown in the drawing.

As shown in FIGS. 4 and 5, the door frame 10 includes a left vertical frame 11, a right retaining wall vertical frame 12, and a lintel 13 as an upper frame connected between the upper portions of the vertical frames 11 and 12. The left vertical frame 11 is fixed to the left pillar 1 outside the door frame 10, and the right buttress wall vertical frame 12 is similarly fixed to the right pillar 1 outside the door frame 10. The lintel 13 is fixed to the lower surface of the lintel 2. As shown in FIG. 5, the left and right ends of the lintel 13 are abutted against the opposing side surfaces of the left and right vertical frames 11, 12 and connected by screws V, V, . . . It's becoming The upper end of the mullion 15 is connected and fixed to the rear side of the lintel 13 substantially at the center in the lateral length direction with a screw V, and the lower end of the mullion 15 is fixed to the floor 3 .

The right retaining wall vertical frame 12 is the door bottom vertical frame. On the other hand, the vertical frame 11 on the left side is a vertical frame on the side of the door, and is made of a thick plate material with a front-to-rear width larger than that of the vertical frame 12 of the retaining wall on the right side. Although they are in the same front and rear position, the rear end protrudes rearward from the retaining wall vertical frame 12 .

FIG. 6 shows the state of the lintel 13 viewed from below, the left side protrudes rearward from the right side, the front-to-rear width of the left side is larger than that of the right side, and the left end of the right side has a directional cut on the rear surface. A notch 13b is formed, and the upper end of the mullion 15 is fitted and fixed in the mullion notch 13b.

Then, as shown in FIG. 2, a retaining wall 5 is constructed between the mullion 15 and the rear portion of the retaining wall vertical frame 12 on the right side. The opening (space) is blocked. As a result, an opening surrounded by the vertical frame 11, the mullion 15, the lintel 13 and the floor 3 is formed in the door frame 10, and this opening is opened and closed by a door 35, which will be described later. The front side wall panel 5a of the retaining wall 5 is fixed between the right side front portion of the mullion 15 and the left side rear portion of the retaining wall vertical frame 12, and the rear side wall panel 5b is fixed from the right side rear portion of the mullion 15. The retaining wall vertical frame 12 extends to the right beyond the pillar 1 on the right side.

As shown in FIG. 6 again, a rail mounting groove 17 having a rectangular cross section is formed along the entire length of the lintel 13 in the lower surface (the front part in the left side) of the lintel 13. A plate mounting groove 18 and a curtain plate mounting groove 19 only on the left side on the rear side are formed in parallel with the rail mounting groove 17, respectively. and FIG. 4) are fitted and fixed at their upper ends.

As shown in FIGS. 3, 4 and 7, a hanging door rail 23 extending over the entire rail mounting groove 17 is fitted and fixed by screws V, V, . . . (see FIG. 7). It is The hanging door rail 23 is composed of a rectangular rail with a substantially U-shaped cross section that is open downward. It has become. The inside of the hanging door rail 23 is divided into upper and lower spaces. Left and right suspension wheels 25 and 26 (see FIGS. 7 and 10) are movably supported on the hanging door rail 23 on the door front side and the door bottom side.

The left and right suspension wheels 25 and 26 are identical to each other, and have a base portion 27 located in the lower space inside the hanging door rail 23 and shafts extending in the front-rear direction (the width direction of the hanging door rail 23) on both left and right sides of the base portion 27. It has four front and rear rollers 28, 28, . A moving unit 29 is configured. The four rollers 28, 28, . . . roll on the rail surface of the lower end portion of the hanging door rail 23, so that the suspension wheels 25 and 26 move within the hanging door rail 23. As shown in FIG.

A fixed portion 31 is connected to the base portion 27 of each suspension wheel 25 and 26 so as to hang down from the base portion 27 via one rod-shaped connecting portion 30 extending in the vertical direction. The upper end portion of the connecting portion 30 is connected to a position between the left and right rollers 28, 28 at the base portion 27, and the lower end portion extends outside and below the hanging door rail 23. As shown in FIG. The fixing part 31 has a substantially rectangular box shape and is fitted into a mounting recess 36 of a door 35 to be described later. The lower end of the connecting portion 30 is connected to the side position. The outer surface of the fixing portion 31 (surfaces on both sides in the left and right length direction of the hanging door rail 23) is formed flat as a whole.

As shown in FIGS. 1 to 4, a single plate-like door 35 is arranged in the door frame 10 for opening and closing the opening in the door frame 10. As shown in FIGS. The door 35 is a top hanging sliding door that is hung from the lintel 13 (upper frame) and slides in the left-right direction, and the opening in the door frame 10 is closed when the door 35 moves leftward. Therefore, the left side of the door 35 is the leading edge side, and the right side is the trailing edge side. As shown in enlarged view in FIGS. 3 and 8, mounting recesses 36, 36 are formed in the upper end portions of the left and right end faces of the door 35, that is, the end faces on the door tip side and the door trailing end side. Each of the mounting recesses 36 is formed by opening the upper ends of the left and right end surfaces of the door 35 so that the depth is in the left-right direction (door width direction), and the mounting recesses 36 are formed on the upper surface of the door 35. is also open. That is, the mounting recess 36 has a structure in which a part of the left and right upper corners of the door 35 is cut away in the door thickness direction, and is opened to the left and right end surfaces and the upper surface of the door 35 . The fixing portions 31 of the hanging wheels 25 and 26 are fitted into the respective mounting recesses 36 from the left and right end surfaces of the door 35 and fixed by a locking structure (not shown). The moving portion 29 protrudes upward from the door 35 from the upper opening of the mounting recess 36 (the upper end surface of the door 35). That is, the suspension wheels 25, 26 are conventional general ones that are attached to the attachment recesses 36, 36 at the left and right ends of the door 35. As shown in FIG. In this state, the suspension wheels 25 and 26 move in the hanging door rail 23, causing the door 35 to slide in the left-right direction. The door 35 does not overlap the retaining wall 5 in the front-rear direction and closes the opening in the door frame 10. When the door 35 moves to the right as indicated by the phantom line, the door 35 does not overlap the retaining wall 5. It overlaps front and back to open the opening. In the drawing, reference numerals 38, 38 denote handles attached to the front and rear surfaces of the end portion (left end portion) of the door 35 on the door tip side.

A floor attachment guide pin 7 is fixed to the floor portion 3 at a position on the front side of the mullion 15 (see FIGS. 1, 3 and 4). As shown in FIG. 3, the lower surface of the door 35 is formed with a guide groove 35a extending in the horizontal direction (door width direction). is slidably supported in the left-right direction in a state in which the lower part thereof is restrained in the front-rear direction by the floor part 3. - 特許庁

As shown in FIGS. 3, 4, 7, 10 and 11, a linear motor as an assisting device for driving suspension wheels 25 and 26 to assist sliding movement of the door 35 is installed in the hanging door rail 23. A device 40 (linear engine) is housed. The linear motor device 40 includes a stator 41 fixed to the hanging door rail 23, a mover 42 driven by the stator 41 and connected to the hanging wheels 25 and 26 so as to move integrally, and an operation of the mover 42. is controlled by a stator 41 to control the assist force when the door 35 is slid. Specifically, as shown in FIGS. 9 and 10, the mover 42 is a plate-shaped permanent magnet that extends in the longitudinal direction of the hanging door rail 23 and has a length that is approximately the same as the lateral width of the door 35. It consists of an assembly and is arranged in the space below the hanging door rail 23. - 特許庁The bases 27, 27 of the left and right suspension wheels 25, 26 are connected to both ends of the mover 42 so as to move integrally. Therefore, the mover 42 , the left and right suspension wheels 25 and 26 and the door 35 move integrally along the hanging door rail 23 .

The stator 41 and the controller 43 are accommodated and fixed in the space above the hanging door rail 23 . The stator 41 is composed of an electromagnet having a field coil, and its lateral length is shorter than the length of the hanging door rail 23 . The stator 41 is arranged and fixed in the left-right central part of the hanging door rail 23, and the stator 41 and at least a part of the mover 42 move vertically regardless of the position of the door 35 in the opening/closing direction. A magnetic field is formed between them and the mover 42 . The controller 43 is arranged on the left side of the stator 41 (closer to the vertical frame 1 on the side of the door). It is connected with box 46 . The controller 43 controls the action of the magnetic field of the stator 41 on the mover 42, and when the door 35 is operated to open from the closed position, the stator 41 moves through the mover 42 by detecting the operation and the movement distance. An assist force (thrust force) in the opening direction is applied to the door 35 to assist the opening operation of the door 35, and the assist force is reduced as the door 35 approaches the open position, while the door 35 is closed from the open position. Occasionally, the stator 41 also applies an assisting force in the closing direction to the door 35 through the mover 42 by detecting the closing operation and the movement distance, thereby assisting the closing operation of the door 35, and the door 35 approaches the closed position. The assist power is reduced as the number increases. The characteristic that the magnitude of the assist force changes with respect to the moving distance (moving stroke) of the door 35 is that, for example, the assist force gradually increases from the start of movement of the door 35 until the door 35 reaches a predetermined distance, and when the predetermined distance is reached, the assist force decreases. is maintained at a constant value, and when the door 35 reaches a position a predetermined distance ahead of the position where the door 35 stops moving, the assist force gradually decreases from the constant value.

The configuration and operation of the linear motor device 40 are known. The suspension wheels 25 and 26, the mover 42 of the linear motor device 40, the stator 41, and the controller 43 are inserted into the hanging door rail 23 from its end and accommodated.

As shown in FIGS. 6 and 12 to 14, at the left end of the lintel 13 of the door frame 10, there is formed a wiring insertion hole 14 having a rectangular notch 13a cut in the middle in the front-rear width direction. It is The wiring insertion hole 14 is formed so that the opening of the notch 13a is closed by the inner surface of the vertical frame 11 in a state where the left end of the lintel 13 is butted against and connected to the left vertical frame 11 to form a through hole. The power wiring 45 of the linear motor device 40 is inserted through the insertion hole 14 . A power supply box 46 is embedded in advance in the upper wall of the lintel 2 above the wire insertion hole 14 (represented by a solid line in the figure for explanation). Then, as shown in FIG. 13, in order to connect the power supply wiring 45 to the power supply box 46 through the lintel 2 at the time of construction, the wiring drill hole 2a is drilled by the drill D through the wiring insertion hole 14 from the lower side of the lintel 2. Drilling is performed.

As shown in FIGS. 2 and 15, on the right side (the surface facing the retaining wall vertical frame 12) of the door leading edge side vertical frame 10 on the left side, when the door 35 is in the closed position, the leading edge of the door edge is provided. A door receiving groove 48 is formed to receive the portion, and this door receiving groove 48 extends over the entire height direction of the vertical frame. The groove width W1 of the door housing groove 48 is larger than the front-to-rear thickness of the door 35, and the left end (door tip side end) of the door 35 in the closed position is housed in the door housing groove 48, and the door tip of the door 35 is accommodated. The generation of gaps between the side ends and the vertical frame 11 is eliminated, and leakage of light and air due to the gaps is blocked. A spacer 49 (see FIG. 12) having substantially the same thickness as that of the door 13 is fitted to the upper end of the door housing groove 48, and the spacer 49 closes the upper end of the door housing groove 48. As shown in FIG.

Since the hanging door rail 23 accommodates the linear motor device 40 therein, it is larger than a normal one in which the linear motor device 40 is not accommodated. Therefore, as shown in FIG. 16, the rail width W2 of the hanging door rail 23 in the longitudinal direction is wider than the groove width W1 of the door receiving groove 48 in the vertical frame 11 (W2>W1). The left end of the hanging door rail 23 is in contact with (or may be close to) the inner surface of the vertical frame 11 .

Further, as shown in FIG. 17, when the door tip side end portion of the left door tip side hanger 25 is accommodated in the door accommodation groove 48 of the left vertical frame 11 at the closed position of the door 35, the door tip side hanger 25 is pulled upward. To prevent the suspension wheel 25 from falling off from the left end of the hanging door rail 23, the suspension wheel 25 is attached at an inner position shifted inward in the door width direction by a predetermined displacement distance L (for example, L = 3 mm) from the edge of the door tip side of the door 35. .

Specifically, when the fixing portions 31 of the hanging wheels 25 and 26 are fitted and attached to the mounting recesses 36 and 36 on the door tip side and the door trailing side on the left and right end faces of the door 35, the planar shape of the fixing portions 31 The outer surface of the door 35 is flush or substantially flush with the left and right end surfaces of the door 35 in a normal reference mounting position. On the other hand, in this embodiment, the depth d in the horizontal direction (depth from the left end surface of the door 35) of only the mounting recess 36 on the door tip side on the left side of the door 35 is It is larger than the thickness t in the left-right direction (d>t), so that the mounting position of the fixing portion 31 is intentionally and positively displaced inward (toward the door trailing edge side, right side) from the reference mounting position. It is Therefore, the fixing portion 31 of the hanging wheel 25 is fitted and fixed in the mounting recess 36 with a space portion 51 formed between the end face of the door 35 on the door tip side. It is located at an inner position displaced by a predetermined displaced distance L inward in the door width direction (horizontal direction) from the end face. 18, a cap member 52 is filled in the space 51 formed between the fixing portion 31 of the suspension wheel 25 and the end surface on the door tip side in the mounting recess 36, and the cap member 52 is filled. The outer surface is flush with the end surface of the door 35 on the door tip side. It is preferable that the maximum value of the displacement distance L of the door end side hanger 25 is the depth of the door receiving groove 48 of the vertical frame 11, and is preferably 6 mm, for example. Incidentally, the door trailing end suspension wheel 26 on the right side is attached to the normal reference attachment position.

Therefore, in the assist door A of the above-described embodiment, when the door 35 is at the closed position at the left end of the movement range, when the user operates the door 35 to open from the closed position to the right, the controller 43 of the linear motor device 40 The stator 41 drives the mover 42 by the drive, and the driving assist force is applied to the door 35 via the mover 42 and the suspension wheels 25 and 26 in the opening direction, thereby assisting the opening operation of the door 35 . As the door 35 approaches the open position at the right end of the movement range, the assist force decreases, and the assist ends at the open position. Conversely, when the door 35 is in the open position at the right end of the movement range, when the user closes the door 35 from the open position to the left, the linear motor device 40 similarly assists the door 35 in the closing direction. A force is applied to assist the closing operation of the door 35, the assisting force decreases as the door 35 approaches the closed position, and the assist ends at the closed position.

At the closed position of the door 35 , the left end (door tip side end) of the door 35 is accommodated in the door accommodation groove 48 on the right side surface of the vertical frame 11 . As a result, no gap is formed between the end of the door 35 on the door tip side and the vertical frame 11, and light and air leakage due to the gap can be blocked.

The hanging door rail 23 which suspends and supports the door 35 by hanging wheels 25 and 26 so as to be slidable has not only the moving parts 29 and 29 of the hanging wheels 25 and 26 but also the moving parts of the door 35. For this reason, the linear motor device 40 is accommodated and the front and rear rail width W2 is large, and the left end portion of the hanging door rail 23 is not arranged in the door accommodation groove 48 of the vertical frame 11, and is located in the door accommodation groove. 48 and is in contact with (or close to) the left side surface of the vertical frame 11 . Therefore, it is not necessary to widen the groove width W1 of the door receiving groove 48 in order to accommodate the left end portion of the hanging door rail 23, and accordingly, the longitudinal width (depth) of the vertical frame 11 does not need to be increased. By narrowing the front and rear width of the frame 11, it is possible to avoid an increase in the size of the door frame 10 and a deterioration in appearance.

Thus, in the structure in which the ends of the hanging door rails 23 are arranged outside the door accommodation grooves 48 of the vertical frame 11, the door tip side ends are accommodated in the door accommodation grooves 48 when the door 35 is closed. When this happens, the end of the door tip side protrudes from the hanging door rail 23, and there is a risk that the door tip side suspension wheel 25 may drop off from the left end part of the hanging door rail 23 in a normal structure.

However, in the present embodiment, the depth d of the mounting recess 36 formed on the door tip side end surface of the door 35 and into which the fixing portion 31 of the door tip side hanging wheel 25 is fitted and attached is determined by the depth d of the door tip side mounting recess 36 . is larger than the lateral thickness t of the fixing portion 31 of the hanging wheel 25, and the fixing portion 31 of the suspension wheel 25 is fitted into the mounting recess 36 with a space 51 formed between the end face on the door tip side. Fixed. With such a fixed structure, the hanging wheel 25 is attached to the left inner side of the door 35 by a predetermined displacement distance L away from the left end surface (door tip side end surface). Therefore, even when the end of the door 35 on the door tip side is accommodated in the door accommodation groove 48, the hanging wheel 25 falls off from the left end of the hanging door rail 23 outside the door accommodation groove 48 of the vertical frame 11. never do. As a result, the operational reliability of the assist door A can be ensured.

The hanging wheels 25, 26 are conventional general hanging wheels that are attached to mounting recesses 36, 36 at the left and right ends of the door 35. A mounting recess 36 for fixing one of the hanging wheels 25 on the door tip side is provided. Only by deepening the chisel toward the center in the width direction of the door, the mounting position of the hanging wheel 25 can be shifted from the reference mounting position, and the mounting position can be easily changed while using a conventional general hanging wheel. can do.

From the above, in the assist door A of the inset structure in which the door frame 10 is constructed in the opening of the wall, it is possible to prevent the longitudinal width (depth) of the vertical frame 11 from increasing, and In addition, it is possible to prevent the suspension wheel 25 from falling out while it is housed in the door housing groove 48 .

In addition, if the space 51 formed between the fixing portion 31 of the hanging wheel 25 and the end face of the door tip side is left exposed in the mounting recess 36 on the door tip side of the door 35, the fixing portion 31 may be misaligned. The difference in level is visible and creates a sense of incongruity. However, since the space portion 51 is filled with the cap member 52, it is possible to prevent the discomfort from occurring and improve the appearance.

In addition, in the assist door A of the inset structure in which the door frame 10 is constructed in the opening of the wall, a suspended door rail 23 is fixed to the lower part of the lintel 13, and a linear motor device as an assist device is installed in the suspended door rail 23. 40 is accommodated, it is necessary to pull out the power supply wiring 45 connected to the linear motor device 40 to the outside of the door frame 10 and connect it to the power supply box 46 (power supply). If the power supply wiring 45 were exposed to the outside of the assist door A, the external appearance would inevitably deteriorate.

In this embodiment, the left end of the lintel 13 is formed with a notch 13a. When closed, it becomes a through-shaped wiring insertion hole 14 in the door frame 10, and the power wiring 45 of the linear motor device 40 is inserted through the wiring insertion hole 14. As shown in FIG. As a result, even with the assist door A having the inset structure, the power wiring 45 of the linear motor device 40 can be pulled out to the outside of the door frame 10 without being exposed. Therefore, the appearance of the assist door A having the inset structure can be improved.

(Other embodiments)
In the above-described embodiment, the assist door A is a right-pulling type in which the door 35 is pulled to the right to open when viewed from the front side.

In the above-described embodiment, the door 35 is suspended from the hanging door rail 23 by the suspension wheels 25 and 26 at the left and right ends. In the case of a door 35 with a , the number of suspension wheels may be increased so that the door 35 can be suspended by the suspension wheels even at the left and right intermediate portions.

The above embodiment is an example of the assist door A of a single sliding door, but the present invention can also be applied to an assist door consisting of a double sliding door and a sliding door, and the closed position of the door is on the door end side. Any assist door may be used as long as the vertical frame has a door receiving groove for receiving the end of the door on the door tip side.

Also, in the above embodiment, the linear motor device 40 is used as the assist device, but other types of assist devices such as a belt device, wire device, and screw feed device can also be used.

Furthermore, in the above embodiment, the assist door A has an inset structure in which the door frame 10 is constructed inside the opening of the wall. can also be applied to assist doors.

INDUSTRIAL APPLICABILITY The present invention is extremely useful in a sliding door type assist door in that it is possible to prevent an increase in the depth of the vertical frame and to prevent the hanging wheel from falling off when it is housed in the door housing groove at the end of the door on the door tip side. It has high industrial applicability.

A assist door 10 door frame 11 vertical frame (vertical frame on door side)
12 Retaining wall vertical frame (Door end side vertical frame)
13 Kamoi (upper frame)
14 Wiring insertion hole 15 Mulch 23 Hanging door rail W2 Rail width 25 End side suspension wheel L Shift distance 26 Door end side suspension wheel 29 Moving part 31 Fixed part t Thickness 35 Door 36 Mounting concave part d Depth 40 Linear motor device (assist Device)
41 Stator 42 Mover 43 Controller 45 Power Supply Wiring 46 Power Supply Box 48 Door Receiving Groove W1 Groove Width 51 Space 52 Cap Member

Claims (3)

a door frame in which an upper frame is connected between the upper parts of left and right vertical frames by contacting left and right ends of the upper frame with the vertical frame; An assist door that includes a door that can slide horizontally within a frame, and that assists the sliding movement of the door,
The door frame has an inset structure constructed in the opening of the wall,
A hanging door rail is attached to the lower surface of the upper frame, and the hanging door rail has a hanging wheel that suspends the door at least at the left and right ends and moves within the hanging door rail, and a hanging wheel that drives the door to slide. An assist device for assisting movement is provided,
In at least one of the vertical frames, the inner surface of the other vertical frame facing the vertical frame is provided with a door receiving groove for receiving the edge of the door when the door is closed, extending at least to the lower surface of the upper frame. is formed in
The hanging door rail has a rail width wider than the groove width of the door receiving groove, and an end of the hanging door rail abuts or approaches a position within the height range of the door receiving groove on the inner surface of the vertical frame on the lower side of the upper frame. and
The hanging wheel has a moving part that moves within the hanging door rail and a fixed part that is connected to the moving part so as to hang down,
The suspension wheel is attached to the door tip side of the fixed portion of the suspension wheel by a predetermined distance so that the suspension wheel does not fall off the end of the hanging door rail when the door tip side end of the door is accommodated in the door storage groove. An assist door, wherein an end surface of the assist door is attached to an inner position shifted inward in a width direction of the door from an end surface of the door tip side. In the assist door of claim 1 ,
A mounting recess for fitting and mounting the fixing portion of the hanging wheel is formed on the end surface of the door tip side of the door,
The depth in the horizontal direction of the mounting recess is greater than the thickness in the horizontal direction of the fixing portion of the hanging wheel,
The fixing portion of the hanging wheel is fitted and fixed in the mounting recess with a space formed between the door tip side end face of the door,
An assist door, wherein the space is filled with a cap member. In the assist door of claim 1 or 2,
The assist device includes a stator fixed to the rail of the hanging door, a mover driven by the stator and integrally connected to the suspension wheel, and a door sliding movement by controlling the operation of the mover by the stator. An assist door, characterized by being a linear motor device comprising a controller for controlling an assist force at a time.

Images