JP7385893B2 - Sliding door stopper device - Google Patents

Description

The present invention relates to a sliding door stopper device that maintains the posture of a sliding door.

BACKGROUND ART Self-closing sliding door devices often used in public facilities such as hospitals are sometimes provided with an opening stopper that holds the sliding door in an open state, and the sliding door is used with the door open. Alternatively, in a sliding door device installed in a facility or the like that does not have a self-closing device, a stopper may be provided to maintain the closed or open position of the sliding door.
Conventionally, many sliding door devices installed at openings in buildings have a self-closing function that automatically closes the sliding door to prevent the sliding door from remaining open after a user passes through. .

In the conventional fully open stopper function, the sliding door stopper function is activated by the engagement of the first engaging body provided on the front side of the sliding door with the second engaging body provided on the fixed part of the sliding door frame, etc. Either the first engaging body or the second engaging body is made of an elastic member such as spring steel, and has a chevron-shaped engaging portion, and the other engaging member is formed of an elastic member such as spring steel. It is common to overcome the chevron-shaped engagement portion by pressing the portion while resisting the elasticity of an elastic member (for example, Patent Document 1).

If the elasticity of such a stopper is weak, the stopper will easily come off due to the rebound force of the sliding door, so you will have to fully open the sliding door with your hand all the way to the end. There is a tendency to increase the elastic force of the elastic member and increase the holding force of the stopper.
However, if the elastic force of the engaging member is made strong, the elastic force of the engaging member is set to be weak, as the elastic force of the engaging member is set to be weak. Another method is to set the height of the chevron-shaped engaging part to be large and to cause large elastic deformation of the elastic engaging member to prevent the stopper from easily coming off. However, even in this case, the elasticity of the elastic part Since the amount of deformation becomes large, the engagement member may break from the elastic portion. Further, it is necessary to provide a large space for the elastic engagement member to undergo elastic deformation, and it is not easy to fit it into the sliding door device.

Patent No. 3538562

In view of the conventional problems, an object of the present invention is to provide a sliding door stopper device in which the engaging member is difficult to break even if the holding force of the sliding door stopper is set high, and the engaging member can be formed small. Take it as a challenge.

The present invention provides, as a first means to solve the above problems, a sliding door that is provided with a rail member on a sliding door frame fixed to a steel frame for a building, etc., and that is hung from the rail member so that it can be opened and closed freely and closed automatically. In a stopper device for a sliding door that is held in an open state or a closed state, the stopper device includes a first engaging member provided on the sliding door side and a fixed member provided on the sliding door frame side that engages the first engaging member when the sliding door is opened. and a second engaging member that engages with the mating member, and when the sliding door is opened, the first engaging member and the second engaging member engage to maintain the open/closed state of the sliding door. At least one of the first engagement member and the second engagement member is provided with an elastic member that can be elastically deformed, and the stopper device is engaged and disengaged using the elastic deformation of the elastic member, and the elastic member includes: It has a first elastic part that extends in the opening and closing direction of the sliding door, and a second elastic part that is connected to the first elastic part at the extension end of the first elastic part, and the first elastic part is attached to the engaging member on the elastic member side. A regulating part is provided to regulate the amount of elastic deformation of the elastic part, and the second elastic part is elastically deformed after the amount of elastic deformation of the first elastic part is regulated.

According to the invention of the first means, since the elastic deformation of the first elastic part is regulated by the regulating part that regulates the amount of elastic deformation of the first elastic part provided on the fixed part side, the engagement process of the stopper is prevented. Alternatively, in the disengagement process, after the elastic deformation of the first elastic part is regulated, the second elastic part is elastically deformed, and the elastic deformation points can be dispersed, so that only the first elastic part is elastically deformed. In addition, the locus of elastic deformation of the engaging member is smaller than when only the first elastic portion is elastically deformed, so the engaging member can be compactly packed. I can do it.
Furthermore, after the elastic deformation of the first elastic part is regulated, the second elastic part is elastically deformed, but the distance between the second elastic part and the engaging part is shorter than the distance between the first elastic part and the engaging part. Therefore, more force is required to elastically deform the second elastic part than before regulating the elastic deformation of the first elastic part, so the force to apply the stopper and the force to release the stopper become larger. . Therefore, the holding force of the stopper can be increased.

According to the invention of the second means, since the engaging member can be prevented from rotating in a direction perpendicular to the direction of elastic deformation using the first elastic portion, the fixing portion of the engaging member can be made small. This allows the entire engaging member to be compactly assembled. Further, since it is possible to prevent the first elastic portion from being elastically deformed in a direction different from the set elastic deformation direction, breakage of the engagement member can be suppressed.

FIG. 2 is a schematic front view of the sliding door of the present invention in a closed state. An enlarged cross-sectional view taken along the line A-A in FIG. 1. An enlarged cross-sectional view taken along the line B-B in FIG. 1. An enlarged cross-sectional view taken along the line CC in FIG. 1. An enlarged diagram of the front part with the inspection side rammer panel removed. FIG. 3 is a perspective view of the first engagement member. FIG. 3 is an exploded perspective view of the first engagement member. A schematic diagram showing the stopper device immediately before operation. FIG. 3 is a schematic diagram showing a state in which the first elastic portion is elastically deformed. FIG. 6 is a schematic diagram showing a state in which the second elastic portion is elastically deformed. FIG. 3 is a schematic diagram showing the stopper device in operation.

In order to provide a sliding door stopper device in which the engaging member is difficult to break even if the holding force of the sliding door stopper is set high and the engaging member can be formed small, an embodiment will be described below based on an example.

The first embodiment will be described in detail below with reference to the accompanying drawings.
In FIG. 1, reference numeral 1 indicates a sliding door frame. As shown in FIGS. 1 to 4, the sliding door frame 1 includes a door end side vertical frame 13 and a door end side vertical frame 14 fixed to a building steel frame 11 through brackets 12... It is arranged between the upper ends of the bottom side vertical frame 13 and the door end side vertical frame 14, and is composed of an upper frame 15 and the like connected to the building steel frame 11.

Then, at an approximately intermediate position between the door end side vertical frame 13 and the door end side vertical frame 14, the upper end is located on both the front side (the inspection side in the example) and the rear side (the outdoor side in the example) of the upper frame 15. A front middle vertical frame 3 and a back middle vertical frame 30 which are connected and whose lower ends are embedded in the floor surface are arranged with a predetermined interval in front and rear.
Hereinafter, the space between the door end side vertical frame 13 and the front and rear middle vertical frames 3 and 30 is on the door pocket side, the space between the door end side vertical frame 14 and the front and rear middle vertical frames 3 and 30 is on the doorway side, and the front middle vertical frame 3 and the rear middle vertical frame. The direction 30 is called the front-rear direction, and the direction of the door end side vertical frame 13 and the door end side vertical frame 14 is called the opening/closing direction.

In FIGS. 1, 2, and 4, reference numeral 2 denotes a rail holding member whose both ends in the opening/closing direction are connected to the upper inner surface of the door end side vertical frame 13 and the door end side vertical frame 14 so that the height can be adjusted. It shows.
A rail member 5 is attached to the front side of the rail holding member 2, and a sliding door 6 is suspended from the rail member 5.
Reference numeral 16 indicates a base material fixed over the entire width of the floor surface on the door pocket side, and reference numeral 4 indicates a guide device provided at the end of the base material 16 on the doorway side.
In FIGS. 1, 3, and 4, reference numeral 17 indicates base rails disposed at predetermined intervals in the vertical direction on both sides of the door compartment interior and the door compartment exterior.
In FIG. 2, reference numeral 18 denotes a front decorative frame, which is disposed between the upper end of the front middle vertical frame 3 and the door edge side vertical frame 14 and has approximately the same width in the front-rear direction as the front middle vertical frame 3. The reference numeral 19 indicates a rear decorative frame, which is disposed between the upper end of the rear intermediate vertical frame 30 and the door edge side vertical frame 14 and has approximately the same width in the front-rear direction as the rear intermediate vertical frame 30. .

Then, the door end side vertical frame 13, the door end side vertical frame 14, the upper frame 15, the rail holding material 2 to which the rail member 5 is attached, the base material 16, the front middle vertical frame 3, the rear middle vertical frame 30, and the base. The crosspieces 17..., the guide device 4, the front decorative frame 18, and the rear decorative frame 19 are installed before the interior finishing (attaching the decorative board 100, cloth, etc.), and after the interior finishing is completed, The sliding door 6 is hung on the rail member 5, and adjustment with the floor surface, confirmation of sliding/drawing of the sliding door 6, connection and fixation of the rail holding member 2, etc. are performed.
After that, the inspection side rammer panel 7 and the fixed side rammer panel 70 are attached above the sliding door 6 so that their surfaces are flush with the sliding door 6.
That is, in Example 1 of the present invention, when the construction is completed, the door edge side vertical frame 14, the front middle vertical frame 3, the rear middle vertical frame 30, the front decorative frame 18, the rear decorative frame 19, and the inspection side rammer panel 7. Everything other than the fixed side rammer panel 70 and the sliding door 6 is hidden by the decorative board 100.

Hereinafter, members related to the present invention will be explained in detail.
The door end side vertical frame 13 is formed in a substantially U-shape in cross section, and is erected at a position spaced a predetermined distance from the entrance/exit side of the building steel frame 11, and the L-shaped brackets 12... and the building steel frame 11 are welded together. After that, it is welded to the bracket 12 in a vertical position. Reference numeral 138 indicates a buffer member attached to the side surface of the doorway, with which the end surface of the sliding door 6 comes into contact when the sliding door 6 is fully opened.

As shown in FIG. 3, the door end side vertical frame 14 has a flat rectangular shape, and is provided with fixing members 141 at predetermined intervals in the vertical direction on the building side steel frame 11 side, so that the sliding door 6 A closing recess 148 is provided in the vertical direction at the portion where the door end is located.

As shown in FIG. 2, the upper frame 15 has a substantially U-shaped cross section facing upward.
After the L-shaped brackets 12 are welded to the building steel frame 11, they are welded to the brackets 12 in a horizontal position.

The door end side vertical frame 14 and the upper frame 15 are constructed as described above, and after the door end side vertical frame 13 is erected, the door end side of the upper frame 15 is screwed to the door end side vertical frame 14. After the upper frame 15 and the door end side vertical frame 14 are temporarily assembled, the upper frame 15 and the door end side vertical frame 13 are temporarily assembled in the same manner.
Next, while maintaining the above state, the fixing member 141 of the door end side vertical frame 14 is welded and connected to the building steel frame 11 via the L-shaped bracket 12 on the door end side. The upper frame 15 and the building steel frame 11 are connected to each other.

As shown in FIGS. 3 and 4, the base material 16 has a fixed surface 161 located across the entire width of the floor on the door pocket side, and an end portion of the fixed surface 161 on the indoor side (inspection side) and outdoor side (fixed side). The formed rising surfaces 162, 162, the L-shaped base board receiving surfaces 163, 163 formed so as to protrude inward from the rising surfaces 162, 162, and the end portions of the fixing surface 161 on the entrance/exit side that protrude toward the entrance/exit. A guide device 4 is fixed on the upper surface of the sliding door 6 to rotatably hold a guide roller 41 that fits into a guide groove 60 formed on the lower end surface of the sliding door 6.
The end of the guide roller mounting member 164 on the entrance side is fixed to the floor with an anchor bolt, and the end of the base material 16 on the entrance side is connected to the inner surfaces of the indoor middle frame 3 and the outdoor middle frame 30. Furthermore, the door end side end portion is connected to the door end side vertical frame 13 and fixed to the floor surface.

As shown in FIGS. 1 and 4, the base crosspiece 17 is composed of a substrate surface portion 171 and upper and lower flange portions 172 and 173, which are formed by bending the upper and lower ends of the substrate surface portion 171 into an L shape. An engagement piece attached to the edge of the door is inserted into an engagement hole provided at a predetermined interval in the vertical direction in the outdoor middle frame 30 and the indoor middle frame 3, and is inserted into the engagement hole provided at a predetermined interval in the vertical direction. The door end side end portion is screwed and connected to the door end side vertical frame 13, and is arranged at a predetermined interval in the vertical direction.

As shown in FIG. 2, the guide device 4 includes a guide roller 41 that fits into a guide groove 60 on the lower surface of the sliding door 6, and a guide roller mounting member 42 that rotatably holds the guide roller 41 on its upper surface. ing.
Then, the end of the guide roller mounting member 42 on the entrance/exit side is fixed to the floor surface with an anchor bolt.

The front and rear middle vertical frames 3, 30 are formed symmetrically in the front and rear direction.
The front middle vertical frame 3 includes a reinforcing frame 31 located on the inner side whose upper end is screwed and connected to the indoor vertical surface of the upper frame 15, and a reinforcing frame 31 located on the indoor side from the end of the reinforcing frame 31 on the entrance/exit side. It is composed of an inner and outer frame 36.
The indoor side outer frame 36 has an indoor side middle frame protrusion 32 that protrudes from the end on the doorway side to the indoor side and hides the doorway side end of the indoor door bag decorative board 100, and an indoor side middle frame protrusion 32. A decorative board support part 33 that protrudes from the inner surface end in the direction of the door end side vertical frame 13 and to which the indoor door bag decorative board 100 is attached, and an end of the decorative board support part 33 on the door end side vertical frame 13 side. It is formed of a base crosspiece connecting portion 34 that protrudes in an L-shape toward the door end side vertical frame 13 and has an engagement hole that engages with a locking piece 174 at the end of the base crosspiece 17 on the indoor side middle frame 3 side. The lower end portion is connected to the base material 16, and the lower end is embedded in the floor surface and erected when the floor surface is finished.

The front middle vertical frame 30 has a reinforcing frame 301 located on the inner side whose upper end is screwed and connected to the vertical surface of the upper frame 15 on the outdoor side, and a reinforcing frame 301 located on the indoor side from the end of the reinforcing frame 301 on the entrance/exit side. It is composed of an outer outer frame 306.
The outdoor side frame 306 has an outdoor middle frame protrusion 302 that protrudes from the end on the doorway side to the outdoor side and hides the doorway side end of the outdoor door bag decorative board 100; A decorative board support part 303 protrudes from the inner surface end in the direction of the door end side vertical frame 13 and to which the outdoor door bag decorative board 100 is attached, and from the end of the decorative board support part 303 on the door end side vertical frame 13 side. It is formed from a base rail connecting portion 304 that projects in an L-shape toward the door end side vertical frame 13 and has an engagement hole that engages with the locking piece 174 at the end of the base rail 17 on the indoor side middle frame 3 side. The lower end portion is connected to the base material 16, and the lower end is embedded in the floor surface and erected when the floor surface is finished.

As shown in FIG. 2, the front and rear decorative frames 18 and 19 are formed symmetrically in the front and rear direction. That is, the left and right ends of the front decorative frame 18 in the opening/closing direction are arranged between the inner surface of the upper end of the front middle vertical frame 3 and the front inner surface of the upper end of the door end side vertical frame 14, and the rear end surface 181 and the inspection side rammer An inspection side rammer panel upper fitting gap 182 is formed between the panel upper holding protrusions 155.
On the other hand, the left and right ends of the rear decorative frame 19 in the opening/closing direction are arranged between the upper end inner surface of the rear middle vertical frame 30 and the upper end rear inner surface of the door end side vertical frame 14, and the front end surface 191 and the rammer panel A rammer panel upper fitting gap 192 is formed between the upper holding protrusions 156.

The fixed side rammer panel 70 and the inspection side rammer panel 7 are formed substantially symmetrically in the front-rear direction. The fixed side rammer panel 70 has a rear surface plate 701 that is formed in a horizontally long plate shape and is disposed upwardly flush with the rear side of the sliding door 6 when the surface is attached, and a rear surface plate 701 that is disposed upwardly in the above-mentioned rammer panel upper fitting gap 192 from below. It consists of a rammer panel upper fitting part 702 to be fitted.

The inspection side rammer panel 7 includes a front surface plate 71 formed in a horizontally elongated plate shape and disposed upward so that its surface is flush with the front plate of the sliding door 6 in the attached state; , an inspection-side rammer panel upper fitting portion 72 that fits into the inspection-side rammer panel upper fitting gap 182 from below.

As shown in FIG. 2, the rail holding member 2 has a rail member connecting wall to which the rail member 5 is connected on the front side, and has a height between the upper end portions of the door end side vertical frame 14 and the door end side vertical frame 13. The sliding door frame, the inspection side rammer panel, and the fixed side rammer panel are immovable members, and are arranged horizontally and are not interlocked with the sliding movement of the sliding door 6.

The rail member 5 is arranged over almost the entire width of the rail holding member 2, and has a substantially C-shaped cross section as shown in FIG. It has an approximately C-shaped cross section and is connected to the indoor side with screws, and has balls that are rotatably held in an outer member that is approximately the same length as the rail reinforcing member and a ball cage that is approximately two-thirds the length of the outer member. It consists of a movable member with a length of approximately one-third of the outer member, which is slidably held by the outer member through the movable member, and a movable member with a length of about the same length as the movable member on the front side of the movable member. A long hanging metal fitting 51 is fixed.

As shown in FIG. 2, the hanging fitting 51 includes a connecting fixing part 52 fixed to the front side of the moving member, and a U-shaped hanging part that is open on the front side and connected to the lower end of the connecting fixing part 52. It is composed of a lower support portion 53.
Suspension bolt insertion holes, which are open on the front side, are formed at both ends of the suspension support section 53 in the opening/closing direction.
The hanging fitting 51 is a moving member that slides on the rail member 5 in accordance with the opening/closing movement of the sliding door 6 in a state in which the sliding door 6 is suspended.

The sliding door 6 has a panel shape as shown in FIGS. 1 to 3, and has a guide groove 60 in which the guide roller 41 fits in the opening/closing direction of the lower end surface, and a predetermined interval in the opening/closing direction of the upper end surface. Suspension connecting screw holes 61, 61 are formed, and door tip side and door bottom side hanging bolts 62, 62 are screwed into the hanging connecting screw holes 61, 61. A door stop 600 is provided on the end surface of the sliding door 6 to protrude in the direction of the door vertical frame 14 and is located within the closing recess 148 of the vertical frame 14 in the closed state of the sliding door. There is.
Reference numeral 300 indicates a handle provided at the end of the sliding door 6 on the inspection side (indoor side) and the fixed side (outdoor side).

The hanging bolts 62 consist of a screw shaft and a bolt head, and when viewed from the inspection side of the entrance with the inspection side rammer panel 7 removed, the screw shafts of the hanging bolts 62, 62 are connected to the suspension support section 53. After inserting the hanging bolt into the insertion hole, the bolt head is held by the hanging support part 53, and if necessary, rotate the head with a wrench to position the sliding door 6 at a predetermined height. , bolt holders 65, 65 are connected to the suspension support part 53 from the front side, and are suspended from the rail member 5 via the suspension fittings 51.

A support member 80 is attached to the hanging fitting 51, and as shown in FIGS. 2 and 6, the support member 80 includes a plate-shaped base 801 having a vertically elongated rectangular shape, and a base 801. A mounting piece 802 formed by folding the lower end into a step shape, a brake contact piece 803 formed by bending the door side surface at the upper end of the base 801 toward the fixed side rammer panel 70, and a door bag side at the upper end of the base 801. An attachment portion 804 is formed by folding the upper surface in a stepped manner toward the fixed side rammer panel 70, and is screwed into the door end side of the hanging fitting 51 at the attachment piece 802.
The brake contact piece 803 is for operating an air brake device (not shown) that adjusts the closing speed of the sliding door 6.

A stopper seat 81 is attached to the attachment portion 804. As shown in FIG. A support body 812 is formed by first bending the upper end in the direction of the fixed side rammer panel 70 and then bending the bent end upward, and a support body 812 formed by bending the upper end of the support body 812 in the direction of the inspection side rammer panel 7. The connecting piece 811 is provided with threaded holes 811a, 811a using weld nuts, and the fixed part 813 has a longitudinal adjustment hole that is a long hole extending in the opening and closing direction of the sliding door. 813a is provided.

The first stopper body 82 is attached to the fixing part 813, and the first stopper body 82 is made of a thin steel plate, and as shown in FIG. 821, a protrusion 822 extending diagonally upward from the door pocket side end of the horizontal fixing portion 821 toward the door pocket side, and a support piece 823 extending diagonally downward toward the door pocket side from the door pocket side end of the protrusion 822; Roller attachment pieces 824, 824 are formed by raising the front and rear ends upward from the support piece 823.
A stopper wheel 825 molded from synthetic resin into a wheel shape is rotatably attached to a shaft pin 826 fixed using shaft holes provided in the roller attachment pieces 824 , 824 , and is rotatably attached to the first stopper body 82 . is composed of

The horizontal fixing part 821 is provided with a fixing hole 821a on the door edge side and a regulating hole 821b on the door bag side, which are spaced apart from each other in the opening/closing direction of the sliding door.
The first stopper body 82 is attached to the fixing portion 813 of the stopper seat 81 as follows.
First, the spacer 84 is placed on the upper surface of the fixing portion 813, which is a horizontal surface. The spacer 84 is made of a thick plate material, and the length on the sliding door opening/closing direction side is set to approximately half the length of the horizontal fixing part 821 of the first stopper body 82 on the sliding door opening/closing direction side, and the flat part A through hole 84a is provided therethrough.

Next, the horizontal fixing part 821 of the first stopper body 82 is placed on the upper surface of the spacer 84. Then, a plate-shaped screw seat 83 provided with two screw holes 831 spaced apart in the opening/closing direction of the sliding door is brought into contact with the lower surface of the fixing part 813.
In this state, the threaded part of the bolt 851 is passed through the fixing hole 821a from the upper surface of the horizontal fixing part 821, and the threaded part of the bolt 851 is passed through the through hole 84a and the longitudinal adjustment hole 813a, and the bolt 851 is inserted into the screw seat 83. The first stopper body 82 is fixed by screwing it into the screw hole 831 on the door end side and tightening the bolt 851.

In this state, the first stopper body 82 may rotate about the bolt 851 with respect to the stopper seat 81. Therefore, a regulating pin 852 having a shaft shape and a male threaded lower part is attached as follows to prevent rotation about the bolt 851 of the first stopper body 82.
First, insert the lower threaded part of the regulating pin 852 into the regulating hole 821b, pass through the front-back adjustment hole 813a, and then screw the threaded part into the threaded hole 831 on the door end side of the screw seat 83 to tighten the regulating pin 852. Tighten and stop tightening at the specified location. Since the regulation pin 852 is set to a length that projects upward from the regulation hole 821b, even if an attempt is made to rotate the first stopper body 82 around the bolt 851, the regulation pin 852 will penetrate the regulation hole 821b. Therefore, rotation of the first stopper body 82 is restricted.
In addition to the method of using a regulating pin as described above, it is also possible to raise the fixing part 813 or the horizontal fixing part 821 in the front and rear directions to form a regulating piece, and attach the fixing part 813 or the horizontal fixing part 821 to the regulating piece. It is also possible to use a method of holding and regulating the rotation.

With the first stopper body 82 attached to the stopper seat 81 in this manner, the spacer 84 is installed near the door edge of the horizontal fixing part 821, and is placed on the door edge side of the horizontal fixing part 821 including the regulating pin 852. is set so that a gap A corresponding to the plate thickness of the spacer 84 opens between the lower surface and the fixing part 813 (in the case of the embodiment, the gap is 3 mm in height).
Since the first stopper body 82 is elastically deformable using the elastic force of the thin steel plate, it can be elastically deformed downward by the gap A.
That is, the horizontal fixing part 821 on the door bag side from the door bag side end of the spacer 84 in which the gap A is provided is set as the first elastic part 86 .
Further, when the first elastic part 86 is elastically deformed downward in the gap A, the lower surface of the tip of the first elastic part 86 comes into contact with the upper surface of the fixed part 813, and further elastic deformation is restricted. That is, the upper surface of the fixing part 813 serves as a regulating part 87 that prevents the first elastic part 90 from being elastically deformed more than necessary.

Then, the stopper seat 81 to which the first stopper body 82 is attached is attached to the support member 80 as follows.
The mounting portion 804 of the support member 80 is provided with vertically elongated oval mounting holes 804a, 804a. The stopper seat 81 is attached to the support member 80 with screws from the inspection side rammer panel 7 side using the attachment holes 804a, 804a, and screw holes 811a, 811a.
The first stopper body 82 can be adjusted in height in the vertical direction within the range of the mounting hole 804a by loosening screws and bolts, and can also be adjusted in the opening/closing direction within the range of the longitudinal adjustment hole 813a. The effectiveness of the stopper of the stopper device 900 can be adjusted.
The stopper seat 81 and the first stopper body 82 attached to the support member 80 as described above constitute the first engaging member 8 that moves in the opening/closing direction in accordance with the opening/closing of the sliding door 6.

Next, the second engaging member 9 installed on the rail holding material 2 side will be explained.
The second engagement member 9 is fixedly installed on the lower surface of a protruding piece 21 that is formed in the upper part of the rail holding member 2 so as to protrude horizontally from the stationary side rammer panel 70 side toward the front and back direction of the inspection side rammer panel 7. It has a triangular shape that protrudes downward when viewed from the inspection side rammer panel 7 side.
More specifically, the first guide surface 91 on the lower surface of the protruding piece 21 projects gently diagonally downward from the door edge side toward the door pocket side, and the first guide surface 91 projects sharply from the lower end of the first guide surface 91 toward the door pocket side. A second guide surface 92 is formed that projects obliquely upward.
The positional relationship is such that the first engaging member 8 is disposed below the second engaging member 9 configured as described above, and the first engaging member 8 and the second engaging member 9 form a stopper. A device 900 is configured. Note that the first engaging member 8 is a movable member that moves together with the sliding door 6, and the second engaging member 9 is a stationary member.

Next, a case where the stopper device 900 operates as an opening stopper for the sliding door 6 will be described.
First, as shown in FIG. 5, when the sliding door 6 is fully closed, the first engaging member 8 is connected to the hanging fitting 51 via a member, so that it is located above the sliding door 6. There will be. The second engaging member 9 is arranged at a position on the door pocket side from the position of the first engaging member 8.
The position of the second engaging member 9 on the door bag side is set at a position where the sliding door 6 is desired to be held in an open state, so it is normally set at a position where the sliding door 6 is held in a fully open state.

Then, when the sliding door 6 is opened, the first engaging member 8 moves toward the door pocket together with the sliding door 6.
When the first engaging member 8 moves toward the door pocket, the stopper wheel 825 first comes into contact with the first guide surface 91 of the second engaging member 9, as shown in FIG. When the sliding door 6 is opened, the stopper wheel 825 is pushed down along the slope of the first guide surface 91, as shown in FIG. deforms elastically towards. When the first elastic part 86 comes into contact with the regulating part 87, the elastic deformation of the first elastic part 86 is suppressed.
When the sliding door 6 is further opened from this state, as shown in FIG. 10, the projection 822 is elastically deformed downward toward the door pocket side starting from the contact portion between the first elastic portion 86 and the restriction portion 87. Then, as shown in FIG. 11, when the stopper wheel 825 crosses the lowest point of the first guide surface 91, the first engaging member 8 is restored to its initial state by the restoring force of the first engaging member 8. , the stopper wheel 825 is positioned above the lowest point of the first guide surface on the door bag side of the second guide surface 92.

In this way, the protrusion 822 is set as the second elastic part 88, and the protrusion 822 elastically deforms downward on the door pocket side starting from the contact part between the first elastic part 86 and the regulating part 87.
Then, after the elastic deformation of the first elastic part 86 is regulated, the second elastic part 88 will be elastically deformed, so that the elastic deformation points of the first stopper body 82 can be dispersed. Fracture of the first stopper body 82 can be suppressed compared to the case where only the first elastic part is elastically deformed, and the locus of elastic deformation of the first stopper body 82 is smaller than when only the first elastic part is elastically deformed. The first engaging member 8 can be made compact.

As described above, when the sliding door 6 moves in the closing direction with the stopper wheel 825 moving toward the door compartment side of the first guide surface 91, the stopper wheel 825 contacts the second guide surface 92, and the sliding door 6 closes. It serves as a stopper to prevent the sliding door 6 from being damaged and to hold the sliding door 6. The stopper wheel 825 serves as an engaging portion.
When using the present stopper device 900 with a stopper that holds the sliding door 6 in a fully closed state, the first engaging member 8 and the second engaging member 9 are formed symmetrically in the opening/closing direction, so that the sliding door 6 is fully closed. This is possible by arranging the stopper wheel 825 of the first engaging member 8 to move toward the door end side of the first guide surface 91 in this state.

Next, when the sliding door 6 is forcibly moved in the closing direction from the state where the sliding door 6 is held, the stopper wheel 825 in contact with the second guide surface 92 is pushed down along the second guide surface 92. Therefore, the first elastic portion 86 of the first engagement member 8 is elastically deformed downward.
When the first elastic part 86 comes into contact with the regulating part 87, the elastic deformation of the first elastic part 86 is suppressed, so when the sliding door 6 is further closed, the second elastic part 88 moves downward toward the door pocket side. Deforms elastically. When the stopper wheel 825 passes over the lowest point of the second guide surface 92, the stopper of the sliding door 6 is released and the sliding door 6 can be closed.

In this way, after the elastic deformation of the first elastic part 86 is regulated, the second elastic part 88 is elastically deformed, but the second elastic part 88 and the stopper wheel 825, which is an engaging part, and the second guide surface 92 Since the distance between the first elastic part 86 and the engaging part becomes shorter than the distance between the first elastic part 86 and the engaging part, more force is required to elastically deform the second elastic part 88 than before the elastic deformation of the first elastic part 86 is restricted. , the force required to activate the stopper and the force used to release the stopper increases. Therefore, the holding force of the stopper can be increased.

Moreover, since the first elastic part 86 is restricted by the restriction pin 852 so that it moves only in the vertical direction, it is possible to prevent the first elastic part 86 from twisting in directions other than the vertical direction. Furthermore, since the first elastic portion 86 can be provided with a function of preventing rotation of the first stopper body 82, the fixing part of the first stopper body only needs to be located at one fixing hole 821a, so that the dimensions of the fixing part in the opening/closing direction can be reduced. It is possible to shorten the length and reduce the size of the first stopper body 82.

Although the stopper device 900 is configured in this manner, the first engaging member 8 that is elastically deformed is installed on the rail holding member 2 to serve as a second engaging member that is an immovable member, and the second engaging member 9 is suspended. The first engaging member may be a moving member installed on the metal fitting 51 side.
However, since the stopper part is usually installed in the door pocket, the first engaging member 8 that undergoes active elastic deformation usually requires periodic replacement. It is preferable that the second engaging member 9 be a moving member and the second engaging member 9 be a stationary member. However, if the door bag side is open, such as a surface-mounted sliding door device that is attached to a wall, the first engaging member 8 is installed on the rail holding member 2 and becomes an immovable member, and the second engaging member 9 It is easy to use it as a moving member installed on the side of the hanging metal fitting 51.

Such a stopper device can be widely applied not only to sliding door devices for opening and closing doorways, but also to cabinet sliding doors and window sashes.

1 Sliding door frame 2 Rail holding material 21 Projection piece 5 Rail member 51 Hanging fittings 7 Inspection side rammer panel 70 Fixed side fixed side rammer panel 8 First engaging member 80 Support member 801 Base portion 804 Mounting portion 804a Mounting hole 81 Stopper seat 811 Connecting piece 811a Threaded hole 812 Support body 813 Fixing part 813a Back and forth adjustment hole 82 First stopper body 821 Horizontal fixing part 821a Fixing hole 821b Regulation hole 822 Projection part 823 Support piece 824 Roller attachment piece 825 Stopper wheel 826 Axis pin 83 Screw seat 831 Threaded hole 84 Spacer 851 Bolt 852 Regulation pin A Gap 86 First elastic part 87 Regulation part 88 Second elastic part 9 Second engagement member 91 First guide surface 92 Second guide surface 900 Stopper device

Claims (1)

A stopper device for a sliding door in which a rail member is provided on a sliding door frame fixed to a steel frame for a building, etc., and the sliding door that is hung from the rail member so as to be openable and self-closable is held in an open state or a closed state. , consisting of a first engaging member provided on the sliding door side and a second engaging member provided on the fixed member on the sliding door frame side that engages with the first engaging member when the sliding door is opened; The sliding door is held in the open/closed state by engaging the first engaging member and the second engaging member when opening, and at least one of the first engaging member and the second engaging member has elasticity. The stopper device is provided with a deformable elastic member, and the stopper device is engaged and detached using the elastic deformation of the elastic member, and the elastic member includes a first elastic portion extending in the opening/closing direction of the sliding door, and a first elastic portion. a second elastic part connected to and formed in the first elastic part at the stretching end of the first elastic part; A stopper device for a sliding door, wherein the second elastic part elastically deforms after the amount of elastic deformation of the second elastic part is regulated.

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