JP2021110178A - Gate type sliding door device - Google Patents

Abstract

To allow a sliding door 31 to run smoothly and stably, while making it difficult to come off even if a lateral load is applied to the door 31, in a gate type sliding door device A that opens/closes the lower part of a building opening 1.SOLUTION: The gate type sliding door device A is in the form of an outset structure, and an upper rail member 8 is provided on a front side of a wall part W on one side of an opening 1 in the horizontal direction. An undrawn part 32 which overlaps with the wall part W is provided at a door tail side of a sliding door 31 at a closed position thereof, and at an upper part of the undrawn part 32, two spaced-apart door end side and door tail side guide pins 36 and 37 are provided in a protrusion manner which are in sliding engagement with the upper rail member 8. In a state in which an upper part of the undrawn part 32 is engaged with the upper rail member 8 by the guide pins 36 and 37, the sliding door 31 can travel on a floor F below the upper rail member 8 or a floor F at the front side of the opening 1.SELECTED DRAWING: Figure 1

Description

The present invention relates to a gate type sliding door device.

Conventionally, as a sliding door device that opens and closes an opening of a building by a sliding door, for example, a suspended type as shown in Patent Document 1 is well known and widely used. This hanging type sliding door device is also called a top load type, and is provided with an upper rail member extending over the opening and the wall portion on the side thereof, and is provided on the door end side and the door tail side of the sliding door (door). A door roller (roller) that is rotatably engaged with the upper rail member is attached to the upper end of the door, and the sliding door is suspended and supported by the upper rail member at the upper end and slides by moving the door roller with the upper rail member. do. A groove is formed on the lower surface of the lower end of the sliding door, and the lower rail member or the guide pin on the floor is engaged with the groove to guide the sliding door. This above-suspended sliding door device can support the sliding door with a small number of members and allow the sliding door to run stably.

Japanese Unexamined Patent Publication No. 2003-343164

By the way, for example, in a building such as an infant facility or a childcare facility where infants are present, a baby gate (infant gate) is installed in the opening to prevent the infant from freely going out of the room through the opening. Sometimes. This baby gate does not open and close the entire opening, but closes only the lower part of the opening in the closed state to prevent infants from inadvertently passing through the opening.

However, when this baby gate is to be formed by the above-mentioned hanging type sliding door device, the upper rail member for suspending the sliding door passes through the upper and lower middle portions of the opening, which hinders the original use of the opening and is practical. There is no sex.

In addition, when the baby gate is in the closed or semi-closed state, even if an infant pushes the sliding door or hits the sliding door and a certain amount of lateral load or impact is applied to the sliding door, the sliding door will come off from the upper and lower rail members. It is required to improve the operational stability and reliability of the sliding door by preventing it from running and ensuring the running of the sliding door.

The present invention has been made in view of these points, and an object of the present invention is not limited to a sliding door device in which a sliding door opens and closes the lower part of an opening by devising the structure of the sliding door device, but the entire opening is opened and closed. Even in the sliding door device, the sliding door is made to run smoothly and stably, and the sliding door is hard to come off when a lateral load is applied to the sliding door.

In order to achieve the above object, in the present invention, the sliding door device is a underload type having an outset structure in which a sliding door arranged on one side in the thickness direction of the wall portion runs on the floor portion. On top of that, an upper rail member is arranged on the wall portion on the side of the opening, and a remaining portion that overlaps the wall portion on the side of the opening is formed in the sliding door at the closed position, and the sliding door door is formed in the remaining portion. A plurality of guide pins separated from each other on the front side and the door tail side were projected, and these guide pins were engaged with the upper rail member to guide them.

Specifically, in the first invention, a sliding door is provided on the front side, which is one side in the thickness direction of a wall portion having an opening in a building, and the opening is opened by moving in the left-right direction along the wall portion of the sliding door. The target is a gate-type sliding door device with an outset structure that opens and closes.

In this gate type sliding door device, an upper rail member is provided on the front side of the wall portion on the left and right sides of the opening. On the door tail side of the sliding door, a remaining portion that overlaps with the wall portion when the sliding door is in the closed position with the opening closed is provided, and the upper portion of the remaining portion extends upward and is described above. At least two guide pins that are slidably engaged with the upper rail member are provided so as to be spaced apart from each other in the direction connecting the door end side and the door tail side of the sliding door. The upper part of the rail member is engaged with the upper rail member by the guide pin, and the vehicle can travel on the floor portion below the upper rail member or on the floor portion on the front side of the opening.

In the first invention, the gate type sliding door device has an outset structure in which the sliding door is arranged on the front side where the sliding door is on one side in the thickness direction of the wall portion, and the upper rail member is arranged on the front side of the wall portion. .. Then, the lower end of the sliding door runs on the floor below the upper rail member or on the floor on the front side of the opening, and a plurality of guide pins protruding to the upper end engage with the upper rail member and slide. , Move left and right to open and close the opening. As a result, the sliding door runs smoothly and stably. Further, since the upper rail member is provided on the front side of the wall portion on the left and right sides of the opening, the upper rail member has an opening even if the sliding door has a structure in which the lower portion of the opening is closed at the closed position. It does not extend to the upper and lower intermediate parts and does not interfere with the original use of the opening.

Further, on the door tail side of the sliding door, a remaining portion that overlaps with the wall portion is formed at the closed position of the sliding door, and a plurality of guide pins protrude from the upper end portion of the remaining portion, and the upper end portion of the sliding door is raised by these guide pins. It is engaged with the rail member. Therefore, the upper end of the sliding door is supported by the upper rail member by a plurality of guide pins, and the lower end is supported by the floor. As a result, the resistance to the lateral load in the front-rear direction of the sliding door increases when the sliding door device is closed or half-closed, and a plurality of guide pins are provided on the door end side and the door tail side of the sliding door, especially at the upper end. Since they are arranged at intervals in the direction of connecting the above-mentioned lateral loads, a large resistance to the lateral load is secured. Therefore, even if a lateral load in the front-rear direction is applied to the sliding door, the sliding door is hard to come off, and the operational stability and reliability of the gate type sliding door device are improved.

In the second invention, in the first invention, the lower rail member extending in parallel with the upper rail member is provided so as to be continuous over the floor portion below the upper rail member or the floor portion on the front side of the opening, and the lower portion of the sliding door. Is provided with a door roller that travels on the lower rail member, and the lower portion of the sliding door is characterized in that it can travel along the lower rail member by the door roller.

In the second invention, the lower rail member is provided on the floor portion on the front side of the wall portion or the front side of the opening, and the door roller under the sliding door runs along the lower rail member. Further, a plurality of guide pins slide on the upper part of the sliding door by engaging with the upper rail member. As a result, the sliding door moves in the left-right direction to open and close the opening. In this way, the lower part of the sliding door is supported by the lower rail member by the door roller, and the resistance to the lateral load of the sliding door in the front-rear direction becomes even larger in the closed state or the half-closed state of the sliding door device.

According to the third invention, in the first or second invention, the guide pins are two, a door end side guide pin located on the door end side of the sliding door and a door tail side guide pin located on the door tail side of the sliding door. It is characterized by being.

In the third invention, although there are two guide pins, the door tip side guide pin and the door tail side guide pin, the resistance to the lateral load of the sliding door in the front-rear direction in the closed state or the half-closed state of the sliding door device is increased. Can be secured.

The fourth invention is characterized in that, in the third invention, the distance between the two guide pins is 110 mm or less.

In the fourth invention, when a lateral load in the front-rear direction is applied to the sliding door in the closed state or the semi-closed state of the sliding door device, the sliding door has the door end side guide pin as the center of rotation and the door end side guide pin upward. Instead of rotating in the direction of disengagement from the rail member, the door end side guide pin rotates in the direction of disengagement from the upper rail member with the door end side guide pin as the center of rotation. At that time, if the distance between the two guide pins is 110 mm or less, it is possible to effectively prevent the door tail side guide pin from coming off from the upper rail member due to the rotation.

The fifth invention is in any one of the first to fourth inventions, in which the upper surface of the upper rail member faces downward toward the front side (toward a direction away from the wall portion toward the front side). It is characterized by being inclined downward.

In the fifth invention, since the upper surface of the upper rail member is inclined downward, for example, even if a user, particularly an infant, tries to reach out from the front side of the wall portion and put a finger on the upper rail member, It becomes difficult for a finger to hang on the inclined upper surface, and it is possible to prevent the act of being held by the upper rail member and hanging.

According to a sixth aspect of the present invention, in any one of the first to fifth inventions, the height position of the upper end portion of the sliding door is lower than that of the upper end portion of the opening, and the sliding door opens and closes the lower portion of the opening at the closed position. It is characterized in that it is configured to do so.

The seventh invention is characterized in that, in the sixth invention, the height position of the upper end portion of the sliding door is 700 mm or more.

In the sixth and seventh inventions, the sliding door opens and closes the lower part of the opening at the closed position, and even if it is applied to an infant gate, for example, its operation stability and reliability are improved. Can be made to.

The eighth invention is characterized in that, in any one of the first to seventh inventions, the plurality of guide pins are the same as each other.

In the eighth invention, only one kind of guide pin is used, the number of parts is reduced, and the cost can be reduced.

As described above, according to the present invention, in the gate type sliding door device having an outset structure in which the sliding door travels on the lower rail member, a plurality of unsliding portions that overlap the wall portion at the closed position of the sliding door are provided, and a plurality of remaining portions are provided above the sliding door. Guide pins are projected at intervals in the direction connecting the door tip side and door tail side of the sliding door, and these guide pins are slidably engaged with the upper rail member, so that the sliding door is in the closed position. Even if the structure is such that the lower portion of the opening is closed, the upper rail member does not hinder the original use of the opening. Further, even if a lateral load in the front-rear direction is applied to the sliding door in the closed state or the semi-closed state of the sliding door device, the sliding door is hard to come off, and the operation stability and reliability of the sliding door device can be improved.

FIG. 1 is a front view showing a closed state of the gate type sliding door device according to the embodiment of the present invention. FIG. 2 is a view corresponding to FIG. 1 showing an open state of the gate type sliding door device. FIG. 3 is an enlarged cross-sectional view taken along line III-III of FIG. FIG. 4 is an enlarged front view showing the end of the upper rail member on the door tail side.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments are merely exemplary and are not intended to limit the present invention, its applications or its uses.

1 and 2 show the overall configuration of the gate-type sliding door device A according to the embodiment of the present invention, and the gate-type sliding door device A opens and closes the lower part of the opening 1 formed in the wall portion W of the building. It has become like. In this embodiment, the building is for a plurality of infants such as a childcare facility, and the opening 1 is opened in the wall portion W between the infant's living room and another space, for example, and is a gate type sliding door device. A is installed as a baby gate (infant gate) to prevent infants from coming and going from the living room to other spaces. In the present embodiment, the front side refers to the living room side in the gate type sliding door device A, the rear side refers to the side opposite to the living room, and the left and right refers to the gate type sliding door device A as viewed from the front side.

A vertical frame 2 on the door end side is constructed on the left side of the opening 1. The door end side vertical frame 2 has a front-rear width larger than the thickness of the wall portion W, and has a door stop portion 2a protruding forward from the wall portion W at the front portion thereof, and the right side surface of the door stop portion 2a ( On the side surface on the door end side), a notch step portion 3 is formed in which the right side surface of the door stop portion 2a is cut out in a stepped shape so that the thickness of the door stop portion 2a is thinner than the other portions. A vertical frame on the door tail side may be installed on the right side of the opening 1.

The gate type sliding door device A includes a sliding door 31 (door) located on the front side (front side in FIGS. 1 and 2) on one side in the thickness direction of the wall portion W having the opening 1, and the sliding doors 31 are left and right. By moving in the direction, only the lower part of the opening 1 is opened and closed while the upper part of the opening 1 is left open, and the gate type sliding door device A has an outset structure.

An upper rail member 8 extending in the left-right horizontal direction is attached and fixed at a predetermined height position (a position slightly higher than the sliding door 31) on the front side of the wall portion W on the right side of the opening 1. The upper rail member 8 has a length slightly shorter than the left-right width of the sliding door 31, and its left end portion is located near the door tail side end portion of the opening 1.

As shown in FIGS. 3 and 4, the upper rail member 8 includes a rail member main body 9 and a cover 20. The rail member main body 9 has a square tubular rail structure 10 and a plate-shaped mounting portion 14 located on the rear side thereof, and the lower wall portion of the rail structure 10 is in the length direction of the rail structure 10. A slit-shaped rail groove 11 extending to is opened. In the rail structure 10, front and rear vertical wall portions 10a and 10a extending downward are formed at both front and rear ends of the rail groove 11, and the lower end portions of the vertical wall portions 10a are separated from the opposing vertical wall portions 10a. It is bent and the distance between both lower ends is slightly larger than the other parts on the upper side. Further, the horizontal wall portions 10b and 10b are projected so as to face each other at the positions near the upper part of the facing surfaces of the two vertical wall portions 10a and 10a, respectively, and the two horizontal wall portions 10b and 10b and the respective horizontal wall portions 10b are below. A groove-shaped rail portion 12 that engages and guides the rotating rollers 40 of the guide pins 36 and 37, which will be described later, is formed in a portion partitioned by both vertical wall portions 10a and 10a on the side. The rail portion 12 has a two-stage structure in which the width of the lower portion is wider than that of the upper portion due to the bending of the lower end portion of the vertical wall portion 10a.

The mounting portion 14 is an elongated plate having a width in the vertical direction, and the upper portion of the intermediate portion in the width direction and the upper rear corner portion of the rail structure 10 are obliquely rearward from the corner portion. It is connected by an extending upper connecting portion 15. On the other hand, the lower portion of the mounting portion 14 in the width direction and the corner portion of the lower rear portion of the rail structure 10 are connected by a lower connecting portion 16 extending horizontally from the corner portion to the rear side. The mounting portions 14, upper and lower connecting portions 15, 16 are integrally formed with the rail structure 10. Then, the rail member main body 9 is formed by screwing the mounting portion 14 to the wall portion W at the upper mounting position of the connecting portion to the upper connecting portion 15 and the lower mounting position of the connecting portion to the lower connecting portion 16. It is fixed to the wall part W.

A front engaging portion 17 extending upward is provided at the upper front portion of the rail structure 10, and a rear engaging portion 18 located at a position higher than the front engaging portion 17 is provided at the upper end portion of the mounting portion 14. Each is formed. These engaging portions 17 and 18 are claw-shaped portions in which a plate-shaped portion is bent in a substantially L-shaped cross section at an intermediate portion in the width direction thereof. The rail member main body 9 including the rail structure 10, the mounting portion 14, the connecting portions 15, 16 and the engaging portions 17, 18 is made of, for example, an extruded aluminum material.

The cover 20 is made of an extruded material such as aluminum or hard resin, and is integrally attached to the upper rail member 8 so as to cover the upper rail member 8 from the front side and the upper side. The cover 20 is located on the front side of the rail structure 10 in the rail member main body 9, and is continuous with the front wall portion 20a extending in the vertical direction covering the rail structure 10 from the front side and the upper end of the front wall portion 20a. It has an upper wall portion 20b that is located above the rail structure 10 or the mounting portion 14 and covers them from the upper side, and the upper wall portion 20b descends forward (rises backward) so as to face downward toward the front side. It is inclined to. A front locking portion 21 extending downward is provided on the lower surface of the upper wall portion 20b near the front end, and a similar rear locking portion 22 is integrally projected on the rear end portion. Reference numeral 22 denotes a claw-shaped portion in which the plate-shaped portion is bent in a substantially L-shaped cross section at the intermediate portion in the width direction, similarly to the engaging portions 17 and 18 of the rail member main body 9, and the front locking portion 21 is a rail member. The cover 20 is attached and fixed to the rail member main body 9 by engaging the front engaging portion 17 of the main body 9 and the rear locking portion 22 with the rear engaging portion 18 of the rail member main body 9. ..

The cover 20 is open to both ends in the length direction, and both open ends are closed by end caps 24 and 24 integrally fixed to both ends of the cover 20, and each end cap 24 is closed by, for example, the cover 20. It is made of the same resin as. The end cap 24 is also fixed to the rail member main body 9 by screwing or the like, and in FIG. 3, 19 is a screw fixing portion of the rail member main body 9.

It is preferable that the color of the upper rail member 8, specifically, for example, the color of the cover 20 exposed on the outer surface side thereof is the same color as or similar to that of the wall portion W.

Further, as shown in FIG. 4, an end stopper 25 projecting downward from the lower surface of the upper rail member 8 is fixedly attached to the rail structure 10 of the rail member main body 9 and attached to the right end portion. When the upper end of the door end side of the sliding door 31 comes into contact with the end stopper 25, the sliding door 31 is restricted to the open end position.

Although not shown, a steady rest member for restricting the sliding door 31 from swinging in the front-rear direction and falling may be fixed to the upper rail member 8. For example, the steady rest member is a member having a U-shaped cross section that is open downward and has an elongated hole extending in the length direction of the steady rest member formed through the bottom wall portion. Then, the steady rest member is installed on the upper surface of the bottom wall portion at the lower end portion of the rail member main body 9 and arranged so as to cover the upper end portion of the sliding door 31 from the front and back, and the sliding door 31 is slidably inserted into the steady rest member. Just do it. By doing so, it is possible to prevent the upper end portion of the sliding door 31 from swinging in the front-rear direction and falling over, which is preferable.

On the other hand, as shown in FIGS. 1 and 2, a lower rail member 28 extending in the horizontal and left-right directions in parallel with the upper rail member 8 is provided on the floor portion F on the front side of the opening 1 to the wall portion W. It is laid so as to be continuous over a range from the lower floor portion F (floor portion F on the front side of the wall portion W) to the floor portion F on the front side of the opening 1. As the lower rail member 28, for example, an embedded type that is embedded in a groove formed in the floor portion F and fixed by screwing, or a direct mounting type that is fixed to the floor portion F by a screw or the like is used, and both are floor portions. It is a flat rail having a small step with F, and although not shown, a rail groove that opens upward is formed on the upper surface of the lower rail member 28. Further, at the right end portion of the lower rail member 28, an end stopper 29 projecting upward thereof is fixed and attached to the end stopper 25 of the upper rail member 8 so as to correspond to the upper and lower sides, and the sliding door 31 is attached by the end stopper 29. The position of the open end of the door is regulated by the lower end of the door end.

The sliding door 31 is a plate-like body having a flush structure, and the height position of the upper end portion thereof is 700 mm or more lower than the upper end portion of the opening 1 and higher than, for example, the height of the infant (height that the infant cannot easily overcome). ). As a result, the sliding door 31 is configured to open and close the lower part of the opening 1 at the closed position.

The door end side door roller 33 is embedded in the sliding door 31 at the lower part of the door end side end portion which is the left end portion of the sliding door 31, and the door end side door roller 34 is embedded in the lower part of the door tail side end portion which is the right end portion. It is attached. A roller (not shown) protruding from the lower surface of the sliding door 31 is rotatably supported on these door rollers 33 and 34 with a rotation axis in the front-rear direction, and the roller is supported on the lower rail member 28. By rolling in a state of being engaged with the groove portion, the sliding door 31 is moved in the left-right direction under a state of a lower load supported by the floor portion F. Therefore, the sliding door 31 is supported between the upper rail member 8 and the lower rail member 28 and moves in the left-right direction. The positions where the door rollers 33 and 34 are attached are not limited to the door end side end portion and the door tip side end portion of the sliding door 31, and the number may be three or more.

The left-right width of the sliding door 31 is larger than the left-right width of the opening 1, and the wall on the right side of the opening 1 is on the door tail side (right side) of the sliding door 31 at the closing position shown in FIG. A leftover portion 32 that overlaps with the portion W is provided. The door tail side portion of the remaining portion 32 of the sliding door 31 has a door end side guide pin 36 located on the door end side of the sliding door 31 and a door tail side guide pin 37 located on the door tail side. The book is attached so as to extend upward from the upper surface of the sliding door 31, and a gap D is provided between the two guide pins. These two guide pins 36 and 37 are the same as each other, and as shown in an enlarged view in FIG. 3, the lower embedded portion 38 of the columnar shape and the lower half portion are arranged concentrically in the embedded portion 38. A non-rotatable round bar-shaped shaft 39 whose upper half extends concentrically upward from the upper end of the embedded portion 38, and a disk-shaped rotation concentrically and rotatably supported above the shaft 39. It has a roller 40 and. The rotary roller 40 is composed of a stepped roller whose upper outer diameter is smaller than that of the lower outer diameter so as to correspond to the cross-sectional structure of the rail portion 12 in the upper rail member 8. That is, the outer diameter of the upper part of the rotary roller 40 is smaller than the width of the upper part of the rail portion 12, and the outer diameter of the lower part is smaller than the width of the lower part of the rail portion 12, and the rotary roller 40 is fitted to the rail portion 12. In this state, gaps on both front and rear sides are formed between the upper part and the lower part of the rotary roller 40 and the rail portion 12. Then, by fitting the embedded portion 38 into the bottomed embedded hole 31a formed on the upper surface of the sliding door 31 by press fitting or the like, the guide pins 36 and 37 cause the shaft portion 39 and the rotating roller 40 to protrude from the sliding door 31. It is fixed to the upper surface of the sliding door 31. The guide pins 36, 37 fixed to the remaining portion 32 of the sliding door 31 are movably engaged with the rail portion 12 of the upper rail member 8 by the rolling of the rotary roller 40. Therefore, the sliding door 31 can travel along the lower rail member 28 in a state where the upper portion of the remaining portion 32 is engaged with the upper rail member 8 by the two guide pins 36 and 37, and the sliding door 31 can travel along the lower rail member 28. In the fully open state, the sliding door 31 is located at a fully open position overlapping the front side of the wall portion W to open the opening 1, while in the fully closed state, the sliding door 31 has a door end side vertical frame 2 at the door end side. In the cutout step portion 3 of the door stop portion 2a in the above, the unpulled portion 32 is located at a fully closed position in a state of overlapping the wall portion W and closes the lower portion of the opening 1. Instead of the rotating roller 40, a slide member that slides the rail portion 12 may be provided.

As described above, the features of the present invention are the door end side guide pin 36 located on the door end side of the sliding door 31 and the door tail side guide pin located on the door end side on the upper part of the remaining portion 32 of the sliding door 31. Two guide pins 36 and 37 are attached, both guide pins 36 and 37 are engaged with the upper rail member 8, and the door end side guide pin 36 and the door tail side guide pin 37 are on the door end side of the sliding door 31. It is that they are arranged at intervals D from each other in the left-right direction (the width direction of the sliding door 31) connecting the portion and the door tail side portion. Of these, for example, the door tail side guide pin 37 is at a fixed position separated from the door tail side end of the sliding door 31 by a certain distance, and the door end side guide is located at a position separated from the door tail side guide pin 37 by a certain distance D. The pin 36 is fixed. The distance D between the guide pins 36 and 37 is preferably 110 mm or less, for example.

That is, when a lateral load in the front-rear direction is applied to the sliding door 31 in the closed state or the half-closed state of the sliding door device A, the sliding door 31 has the door end side guide pin 36 as the center of rotation with the door tail side guide pin 37 as the center of rotation. Instead of rotating in the direction of disengagement from the upper rail member 8, the door tail side guide pin 37 rotates in the direction of disengagement from the upper rail member 8 with the door end side guide pin 36 as the center of rotation. At that time, if the distance D between the guide pins 36 and 37 exceeds 110 mm, the sliding door 31 cannot travel due to damage to the door tail side guide pin 37, bending of the upper rail member 8, etc. even with a small lateral load. Because it may become. On the other hand, when the distance D between the two guide pins 36 and 37 becomes small enough to substantially function as one guide pin, the functions of the two guide pins 36 and 37 cannot be exhibited satisfactorily.

In the embodiment of the present invention, in addition to providing the two guide pins 36 and 37 in the remaining portion 32 of the sliding door 31, the following structure is adopted. For example, a soft closing mechanism 45 is provided inside the upper rail member 8. This soft-close mechanism 45 has a known structure and has a retractable spring and a damper (not shown), and at a predetermined position immediately before when the sliding door 31 moves from the open state or the half-open state toward the fully closed position. The sliding door 31 is captured by the trigger protruding from the upper rail member 8 and pulled in by the retracting spring, and the movement of the sliding door 31 due to the pulling is damped by the damper to slowly move the sliding door 31 and move it to the fully closed position. I try to let you. The same soft closing mechanism 45 is also used in the opening direction so that when the sliding door 31 moves from the closed state or the half-closed state toward the fully open position, the sliding door 31 is slowly moved to move to the fully open position. It can also be.

Further, at the end of the sliding door 31 on the door end side, an elongated cushion member 46 made of soft resin or the like is attached and fixed from a position near the upper end to the lower end.

Further, a sickle lock 47 for locking the sliding door 31 in the closed state is provided at the door end side end of the sliding door 31 at a position higher than the upper end of the cushion member 46, that is, at a height position beyond the reach of infants. Has been done. The sickle lock 47 also has a known structure, and includes a sickle-shaped bolt (not shown) that is rotatably supported in the sliding door 31 with a rotation axis in the front-rear direction and protrudes from the end face on the door end side by rotation. It has an operating portion 47a for rotating the bolt, and the operating portion 47a is exposed on, for example, the front and rear surfaces of the sliding door 31. A seat (not shown) having an engaging hole is attached to the notch step portion 3 of the door end side vertical frame 2, the sliding door 31 is in the closed position, and the door end side end thereof is the door end. When the side vertical frame 2 is in contact with the notch step portion 3, the operation portion 47a rotates the bolt to project the sliding door 31 from the door end side end surface, and the tip portion engages with the engaging hole of the receiving seat. By inserting it in the combined state, the sliding door 31 is locked and held in the closed position.

Further, on the front and rear surfaces of the sliding door 31 at substantially the same height as the upper end of the cushion member 46, pull tabs 49 and 49 (in FIGS. 1 and 2, only the front pull tab 49 is shown). ) Is installed correspondingly. When the pull tab 49 or the sickle lock 47 is provided in the sliding door 31, a recess is provided at a predetermined position on the front and rear surfaces of the sliding door 31 to attach the pull tab 49 to the recess, or a hole for exposing the operation portion 47a of the sickle lock 47. In this embodiment, a through hole 31b is opened to penetrate the sliding door 31 over the front and rear surfaces instead of the recess, and the front and rear surfaces of the sliding door 31 of the through hole 31b are opened. The pull tabs 49 and 49 are attached to the opening, or the operation portion 47a of the sickle lock 47 is attached to another through hole 31b so as to be exposed on the front and rear surfaces of the sliding door 31. In this way, not only can the sickle lock 47 and the pull tab 49 be operated from both the front and rear sides of the sliding door 31, but also the front and rear surfaces of the pull tab 31 can be selected at the construction site of the gate type sliding door device A to operate the pull tab 49 and the sickle lock 47. Further, in the notch step portion 3 of the door stop portion 2a of the door end side vertical frame 2, the steady rest member 51 is attached at a position higher than the seat of the sickle lock 47. .. Although not shown, the steady rest member 51 has, for example, a vertically long protrusion that protrudes toward the door end, and this protrusion is, for example, a vertically long engaging recess (not shown) formed on the door end side end surface of the sliding door 31. Can be fitted to. Then, when the door end side end surface of the sliding door 31 comes into contact with the notch step portion 3 of the door tip side vertical frame 2 in the fully closed state of the gate type sliding door device A, the protrusion of the steady rest member 51 is brought into contact with the sliding door 31. By fitting into the engaging recess, the door tip side portion of the sliding door 31 is prevented from shifting back and forth and rattling.

Further, for example, a circular fixed window 53 in which a transparent material is fitted is formed in the lower part of the door end side portion of the sliding door 31, so that an infant or the like can see through the fixed window 53 on the opposite side of the sliding door 31. .. Since the opposite side of the sliding door 31 can be seen through the fixed window 53 at the lower part of the sliding door 31, even a short infant or the like can easily see the other side of the sliding door 31, which is advantageous in terms of safety. Moreover, since the fixed window 53 is arranged on the door end side portion of the sliding door 31, the fixed window 53 overlaps with the wall portion W and is hidden when the sliding door 31 is opened and closed, as compared with the case where the fixed window 53 is arranged on the door tail side portion. The frequency and proportion of appearance of the fixed window 53 is reduced, and the fixed window 53 is more likely to function.

Therefore, the gate type sliding door device A according to the above embodiment has an outset structure in which the sliding door 31 and the upper and lower rail members 8 and 28 are arranged on the front side of the wall portion W on the one side in the thickness direction, and the lower end of the sliding door 31. The door wheels 33 and 34 on the door end side and the door tail side of the portion run along the lower rail member 28 on the floor portion F on the front side of the wall portion W or the front side of the opening 1, and project to the upper end portion of the sliding door 31. The two guide pins 36, 37 engage with the upper rail member 8 on the front side of the wall portion W and slide. As a result, the sliding door 31 smoothly travels in the left-right direction and opens and closes the opening 1, and at the fully opened position, the opening 1 is opened with the sliding door 31 overlapping the front side of the wall portion W. In the fully closed position, the door end side end portion of the sliding door 31 enters the notch step portion 3 of the door stop portion 2a in the door end side vertical frame 2, and the leftover portion 32 on the door tail side overlaps the wall portion W. Close the lower part of the opening 1. Even if the sliding door 31 closes the lower part of the opening 1 at the closed position, the structure in which the upper rail member 8 passes through the upper and lower intermediate portions of the opening 1 becomes unnecessary, and the original use of the opening 1 is hindered. There is no.

Further, the lower end portion of the sliding door 31 is supported by the lower rail members 28 on the left and right door wheels 33 and 34 so as to be immovable in the front-rear direction and movable in the left-right direction due to the weight of the sliding door 31. On the other hand, regarding the upper end of the sliding door 31, the two guide pins 36 and 37 project from the upper end of the remaining portion 32 on the door tail side, and the upper end of the sliding door 31 is raised by the guide pins 36 and 37. By engaging with the member 8, the upper end portion of the sliding door 31 is supported by the upper rail members 8 by the two guide pins 36 and 37 so as to be immovable in the front-rear direction and movable in the left-right direction. Since the sliding door 31 is supported by the upper and lower ends in this way, the resistance to the lateral load of the sliding door 31 in the front-rear direction increases even if the sliding door 31 is in the closed position or the semi-closed position. As a result, even if a lateral load in the front-rear direction is applied to the sliding door 31 due to a collision of an infant or the like, the sliding door 31 is less likely to come off from the upper and lower rail members 8 and 28, improving the operational stability and reliability of the gate type sliding door device A. be able to.

In particular, since the upper end of the sliding door 31 is supported by the upper rail member 8 by the guide pins 36 and 37 at the end on the door tail side, the front and rear of the sliding door 31 are in the closed or semi-closed state of the sliding door device A. When a lateral load in the direction is applied, the sliding door 31 tries to rotate with the positions of the guide pins 36 and 37 at the end on the door tail side as fulcrums. However, since the guide pins 36 and 37 are arranged at intervals in the direction connecting the door end side portion and the door tail side portion of the sliding door 31, the two guide pins 36 and 37 are used. The rotation resistance due to the action of the lateral load increases, and it is possible to prevent the upper end portion of the sliding door 31 on the door tail side from rotating and the door tail side guide pin 37 from coming off from the upper rail member 8.

At that time, as described above, when a lateral load in the front-rear direction of the sliding door 31 is applied in the closed state or the semi-closed state of the sliding door device A, the sliding door 31 is on the door end side with the door tail side guide pin 37 as the center of rotation. The guide pin 36 does not rotate in the direction away from the upper rail member 8, but rotates around the door end side guide pin 36 near the point of action of the lateral load in the sliding door 31, and the door tail side guide pin 36. 37 tries to come off from the upper rail member 8. With respect to such movement, if the distance between the two guide pins 36 and 37 is 110 mm or less, it is possible to effectively prevent the door tail side guide pin 37 from coming off from the upper rail member 8 due to the rotation. can.

As a result, even if the sliding door device A is an infant gate that opens and closes the lower portion of the opening 1 by the sliding door 31, its operational stability and reliability can be improved.

Further, since the two guide pins 36 and 37 are the same as each other, it is sufficient to prepare one type of guide pins, and the number of parts can be reduced to reduce the cost.

Further, since the steady rest member 51 having a protrusion that fits into the engaging recess when the sliding door 31 is in the fully closed position is attached to the door end side vertical frame 2, the sliding door 31 is in the fully closed position. It is possible to prevent rattling in the front-back direction.

A sickle lock 47 is attached to the door end side portion of the sliding door 31, and at the closed position of the sliding door 31, the lock is rotated by the operation of the operation portion 47a of the sickle lock 47 to receive a seat in the door end side vertical frame 2. The sliding door 31 can be fixed in the closed position by engaging with the engaging hole of the sickle, and the sliding door 31 in the closed position does not open carelessly. Since the sickle lock 47 and its operating portion 47a are arranged at a height that the infant cannot reach in the sliding door 31, it is possible to prevent the infant from easily unlocking the sickle lock 47.

Moreover, a cover 20 is attached to the upper rail member 8, and the gap between the upper end portion of the sliding door 31 and the upper rail member 8 is reduced by the cover 20, so that an infant or the like can pinch a finger or the like in the gap. Can be prevented.

Further, since the upper wall portion 20b of the cover 20 is inclined downward (backward rising), it is easy for the fingers of the infant's hand to be caught as in the case where the upper wall portion 20b is in a horizontal state. Instead, it is possible to prevent the baby from being caught by the cover 20 and hanging.

Moreover, if the color of the upper rail member 8 (particularly the cover 20 exposed to the outer surface side) is the same color as or similar to that of the wall portion W, even if the upper rail member 8 protrudes from the wall portion W, the wall portion thereof. It becomes difficult to distinguish it from W, and it is possible to diminish the interest and consciousness that the infant is trying to hang by grasping the upper rail member 8.

Further, since the upper rail member 8 has each tubular rail structure 10 and the rotating rollers 40, 40 of the guide pins 36, 37 are engaged with the rail portion 12 of the rail structure 10, the rail A space for incorporating the soft closing mechanism 45 can be secured inside the structure 10. By incorporating this soft-close mechanism 45, even if the sliding door 31 is vigorously opened and closed, its movement is damped by the soft-close mechanism 45 so that the sliding door 31 slowly moves to the closed position, the open position, or both. Therefore, it is possible to avoid the problem associated with the sudden movement of the sliding door 31 to those positions.

In addition, since the cushion member 46 is attached to the end of the sliding door 31 on the door end side, there is no problem even if an infant pinches his or her finger between the sliding door 31 and the vertical frame 2 on the door end side.

(Other embodiments)
In the above embodiment, the present invention is applied to a baby gate, but in the present invention, the height position of the upper end portion of the sliding door 31 is lower than that of the upper end portion of the opening 1, and the sliding door 31 is in the closed position. Any gate-type sliding door device configured to open and close the lower portion of the opening 1 can be applied. Further, in the present invention, the upper rail member 8 is at the same height as the opening 1, and the sliding door 31 opens and closes the entire opening 1 (at the closed position, the sliding door 31 closes the entire opening 1). It can also be applied to a type sliding door device, and is effective when it is difficult to attach the upper rail member 8 to the upper side of the opening 1.

Further, three or more guide pins may be provided on the remaining portion 32 of the sliding door 31.

Further, in the above embodiment, the lower rail member 28 is laid on the floor portion F, and the door wheels 33 and 34 of the sliding door 31 are rolled on the lower rail member 28 to move the sliding door 31. However, the structure for moving and guiding the lower part of the sliding door 31 may be other than that. For example, a guide groove in the left-right direction is formed in the lower part of the sliding door 31, and at least one guide pin that engages with the guide groove is placed at a position closer to the wall portion W of the floor portion F on the front side of the opening 1 or on the front side of the wall portion W. A structure in which the lower part of the sliding door 31 is guided by a guide pin on the floor part F and slid in the opening / closing direction, or a caster for straight running is attached to the lower part of the sliding door 31 and the caster is used. The sliding door 31 may be opened and closed by rolling the sliding door 31 on the floor portion F. In this way, the floor portion F on which the sliding door 31 moves becomes flat, which is advantageous in terms of safety and the like.

According to the present invention, with respect to a gate type sliding door device in which an upper rail member is not attached to the upper side of the opening, the sliding door is hard to come off even when a lateral load is applied, so that operational stability and reliability can be improved. It is extremely useful in fields such as baby gates and has high industrial applicability.

A Gate type sliding door device W Wall part F Floor part 1 Opening part 2 Door tip side vertical frame 8 Upper rail member 12 Rail part 20 Cover 20b Upper wall part 28 Lower rail member 31 Sliding door 32 Leftover part 33 Door end side door car 34 doors Rail-side door roller 36 Door-end side guide pin 37 Door-side guide pin D Interval 40 Rotating roller

Claims (8)

A gate type with an outset structure in which a sliding door is provided on the front side, which is one side in the thickness direction of a wall portion having an opening in a building, and the opening is opened and closed by moving the sliding door in the left-right direction along the wall portion. It ’s a sliding door device,
An upper rail member is provided on the front side of the wall portion on the left and right sides of the opening.
On the door tail side of the sliding door, a remaining portion that overlaps with the wall portion when the sliding door is in the closed position with the opening closed is provided, and the upper portion of the remaining portion extends upward and is described above. At least two guide pins that are slidably engaged with the upper rail member are provided so as to be spaced apart from each other in the direction connecting the door end side and the door tail side of the sliding door.
The sliding door is capable of traveling on the floor below the upper rail member or on the floor in front of the opening in a state where the upper part of the undrawn portion is engaged with the upper rail member by the guide pin. A gate-type sliding door device characterized by. In claim 1,
The lower rail member extending parallel to the upper rail member is provided so as to be continuous over the floor portion below the upper rail member or the floor portion on the front side of the opening.
A door roller that runs on the lower rail member is provided at the bottom of the sliding door.
The lower part of the sliding door is a gate type sliding door device characterized in that it can travel along the lower rail member by the door roller. In claim 1 or 2,
A gate-type sliding door device characterized in that there are two guide pins, a door end side guide pin located on the door end side of the sliding door and a door tail side guide pin located on the door tail side of the sliding door. In claim 3,
A gate-type sliding door device characterized in that the distance between two guide pins is 110 mm or less. In any one of claims 1 to 4,
A gate-type sliding door device characterized in that the upper surface of the upper rail member is inclined forward downward so as to face downward toward the front side. In any one of claims 1 to 5,
The height position of the upper end of the sliding door is lower than the upper end of the opening,
A gate-type sliding door device characterized in that the sliding door is configured to open and close the lower part of the opening at the closed position. In claim 6,
A gate-type sliding door device characterized in that the height position of the upper end of the sliding door is 700 mm or more. In any one of claims 1 to 7,
A gate-type sliding door device characterized in that a plurality of guide pins are the same as each other.

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