JP2000204864A - Floating prevention device for slide door type gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floating prevention device for a slide door type gate capable of preventing the front part of the gate together with the floating prevention device from being raised. SOLUTION: A floating prevention device for a slide door type gate comprises a sash sheave 5f at the front of the gate and a floating prevention device 7 installed near the front end part of a rail 1. An outwardly projecting lock part 53b is provided at the lower end part of a side wall of a sash sheave case of the sash sheave 5f. The floating prevention device 7 comprises an upper surface wall 71 and a leg part 72 which extends downward from both end parts of the upper surface wall 71 and buried in the ground. The upper surface wall 71 comprises a notch part 73 used to fit a wheel of a front sash sheave 5b of the gate moved to a close position to the lower end part of the side wall of the sash sheave case 53. The upper surface wall 71 is engaged, on its upper side, with a lock part 53b of the front sash sheave case 53 of the gate located at the close position. The floating prevention device 7 comprises a locked part to be locked, on its lower side, to the end part on both right and left sides of the rail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door using an inner lock, and more particularly to a retaining device for preventing a locked gate from being lifted.

[0002]

2. Description of the Related Art On a ground surface, a front end of a gate in a closed position is extended from the vicinity of a column (door support column) contacting therethrough via a side of an intermediate column erected on the side of a rear end of the gate. On the rails provided, the door rollers provided at the front and rear of the bottom of the gate are rollably mounted, and the upper part of the gate is freely opened and closed by a pair of left and right guide rollers rotatably mounted on the arm protruding from the intermediate support. The supported sliding doors are widely used. An internal lock is generally used for such a locking device for a sliding door. The inner lock penetrates through the gate through an L-shaped receiving bracket attached to the inside of the site of the door support column, and a handle provided outside the site and an inside lever provided inside the site at the front of the gate. And a gate-side unit that is rotatably connected by a shaft. When the inner lock is locked, the handle or lever of the gate-side unit is rotated in a predetermined direction, and the lever is locked by simply fitting and locking the lever into the receiving bracket. By inserting a key into a keyhole provided on a mounting bracket for mounting the unit to the gate and rotating the key in a predetermined direction, the structure of preventing the shaft of the gate-side unit from rotating can be obtained.

Therefore, in the closed state of the gate, the rear end of the gate is prevented from being detached by the arm of the intermediate support and the guide roller. However, when the front end of the gate is lifted, the door wheel easily rises from the rail. In addition, the lever of the inner lock easily escapes upward from the receiving fitting and becomes exactly in the same state as when it is unlocked, so that there is a problem of lack of security.

In order to prevent the front end of the closed / locked gate from being lifted and unlocked, the door wheel at the front of the gate is moved to the rail door when the gate is moved to the closed position. It is necessary to prevent the gate from being lifted by engaging with a floating stopper buried near the end on the side of the support column.
In this case, it is conceivable to embed a saddle-shaped floating stopper that straddles the rail and to form a projection on the door roller holding bracket that is inserted into and engaged with the floating stopper at the gate closing position.

[0005]

However, as described above, if a projection is provided on the front door roller, there is a danger that the foot or the clothes of the gate closing worker may be caught on the projection and injured. It is dangerous for people and infants. Also,
If the retaining device is formed in a saddle shape and is simply buried so as to cover it from the upper side of the rail, if a strong lifting force is applied to the front part of the gate, the protrusion of the door wheel will remain engaged while retaining the protrusion. There is a danger that the front of the gate may be lifted and separated from the door strut, making it possible to enter the site. In the present invention, the front part of the gate is lifted together with such a retaining member, and is separated from the door support,
It is an object of the present invention to provide a retaining device for a sliding door that can prevent entry into a site.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a door support column is provided at a position near one end of a rail laid on the ground, and an intermediate column is provided at a position near an intermediate portion of the rail. A guide roller provided on the upper part of the intermediate support guides the upper part of a gate movably mounted on the rail via a door roller, and the front part of the gate abuts on the door support post. In the sliding door type gate retaining device having an inner lock that locks the door support column and the front part of the gate when moved to the position, the following configuration requirements are provided. It shall consist of a door roller at the front of the gate and a floating stopper provided near the front end of the rail. The door roller at the front of the gate has a locking portion projecting outward at the lower end of the side wall of the door roller case. The floating stopper has a top wall located above the rail, and legs extending downward from both ends of the top wall and buried in the ground, wherein the top wall has been moved to the closed position. The door has a notch for fitting the wheel of the front door roller and the lower end of the side wall of the door roller case, and engages with the locking portion of the front door roller case of the gate moved to the closed position on the upper side thereof. ,
The leg portion has a locking portion that is locked at a lower side on both right and left ends of the rail. With the above configuration, when the gate is moved to the closed position, the wheel of the front door wheel of the gate and the side wall of the case fit into the notch of the floating stopper, and the locking portion of the lower end of the side wall of the door wheel case has The lower surface engages the upper surface wall of the floating stopper. Therefore, in a state where the inner lock is locked, even if a lifting force is applied to the front part of the gate, the front door wheel prevents the gate from being lifted. Since the floating stopper is locked to the rail, the lifting stopper is prevented from being lifted.

[0007] The object of the present invention can also be solved by configuring the floating retaining device for a sliding door with the following components. A front door wheel of a gate, a retaining member provided at a position near a front end of a rail, and a connecting member for connecting the retaining member to the door support column. The front door roller of the gate is provided with a locking portion projecting outward at the lower end of the side wall of the door roller case. The floating stopper has an upper surface wall located above the rail, and legs extending downward from both ends of the upper surface wall and buried in the ground, and the upper surface wall has been moved to a closed position. The door has a notch for fitting the wheel of the front door of the door and the lower end of the side wall of the door case, and the portion near the notch of the upper surface wall is the case of the front door of the door moved to the closed position. The leg portion has an engaging portion that covers the locking portion and protrudes inward to be engaged with one end portion of the coupling tool. The connecting tool has one end fixed to the rail, fixes the leg of the floating stopper, extends from the rail to the door strut, and has the other end fixed to the door strut. Things. With the above configuration, in the state where the gate is moved to the closed position and the inner lock is locked, similarly to the case of the above-described invention, the wheel of the front door wheel of the gate and the side wall of the door wheel case are cutout portions of the floating stopper. And the locking portion at the lower end of the side wall of the door case engages with the upper surface wall of the retaining device on the lower side thereof. The retaining device engages the rail via one end of the connector, and the other end of the connector is connected to the door support column. That is, the retaining member is connected to the support via the rail and the connecting member. Therefore, even if the front part of the locked gate is to be lifted using power, this can be prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described based on the illustrated embodiment. FIG. 1 is a front view showing the installation state of a sliding door type gate according to the present invention, as viewed from the inside of a site, FIG. 2 is a perspective view of a floating prevention device, and FIG. 3 is a floating prevention device when the gate is in a closed position. FIG. 4 is a sectional view taken along the line XX of FIG. 3 showing the positional relationship of the components.

In FIG. 1, reference numeral 1 denotes a rail laid on the ground, which is formed in a mountain-shaped cross section as shown in FIGS.
The upper half portion including the top portion protrudes upward from the ground (GL) and is laid horizontally. Reference numeral 2 denotes a door support post, which is provided upright at a position near one end of the rail 1 on an extension of the rail 1. Reference numeral 3 denotes an intermediate support provided upright on the side of the rail 1 at an intermediate position, and a gate (not shown) provided at an upper end thereof with an arm (not shown) protruding horizontally above the rail in a direction perpendicular to the rail. A pair of left and right guide rollers (not shown) for pinching and guiding the roller 4 are rotatably provided vertically. The number of guide rollers and the guide structure are not particularly limited.

Reference numeral 4 denotes a sliding door, which is a frame formed by forming an upper frame 41, a lower frame 42, and front and rear vertical frames 43, 44 into a rectangular shape, and having a 1,000-lattice or other boundary surface having an arbitrary appearance. It is provided with a forming member 45. And lower frame 4
Door wheels 5f, 5r are attached to the front and rear of 2,
The door wheel is fitted and mounted on the top of the rail 1 and the upper frame 4
2 between the left and right guide rollers of the intermediate support,
While being pinched and guided by the guide rollers, the door roller 5f,
5r is moved along the rail 1 so as to be movable between a closed position where the front vertical frame 43 contacts the door support column 2 and an open position where the vertical frame 43 approaches the intermediate column 3. Have been.

Reference numeral 6 denotes a known inner lock that locks the gate 4 moved to the closed position by engaging the door 4 with the door support column 2, and is an L-shaped protrusion protruding from the side surface of the door support column 2 in the premises. Bracket 6
1 and a gate-side unit 62 attached to the front vertical frame 41 of the gate. The gate-side unit 62 has a handle (not shown) provided outside the site of the vertical frame 43 and a site inside the site, as is known. And a connecting shaft (not shown) for connecting the handle and the lever. Then, in the closed position of the gate 4, the handle or the lever is turned by hand, and the tip of the lever is received in the metal fitting 6.
1, it is possible to perform empty tightening, and insert a predetermined key into a keyhole provided in a washer 62 b for attaching the gate-side unit 62 to the gate, and rotate in a predetermined direction, or in the opposite direction. By rotating, final tightening or unlocking is possible.

In the present invention, at least a front door (hereinafter referred to as a front door) 5f at the front of the gate has a door case 53 for rotatably supporting wheels 51 via an axle 52.
The lower ends of the pair of left and right side walls 53a supporting the axle are:
The locking portion 53b is provided outwardly, that is, bent in a direction away from the other side wall.

At a position on the rail 1 corresponding to the front door wheel 5f when the gate is moved to the closed position, a floating stopper 7 is provided so as to ride on the rail 1. The retaining member 7 has an upper surface wall 71 located above and separated from the rail 1 and leg portions 72 extending downward from both ends of the upper surface wall and buried in the ground. The upper surface wall 71 is a wheel 5 of a front door wheel 5f of the gate 4 in the closed position.
1 and a notch 73 for fitting the lower end of the side wall 53 a of the door case 53. The notch 73 engages with the locking portion 53b of the case 53 of the front door roller 5f of the gate whose peripheral edge is in the closed position on its upper side, and the locking portion 53
The size is set to prevent the upward movement of b. A locking portion 74 which is fitted to and locked to the left and right end portions of the rail 1 on the lower side thereof at both leg portions 72 of the floating stopper 7.
However, as an example, it is formed by cutting and raising the leg 72.

In this manner, the floating stopper 7 is provided with the upper wall 71,
The end of the rail 1 is inserted or fitted between the two leg portions 72 and both the locking portions 74 to lock the locking portion 74 to the lower end portion of the rail 1, and The top wall 71 protrudes upward from the ground (GL), the top of the rail 1 is positioned substantially at the center of the notch 73, and the notch 73 is opened in the direction opposite to the door support column 2 and in the vertical direction. Buried in the state. In this case, the end of the rail 1 is
It is desirable that the door be stopped at a position slightly closer to the door support post than the inside of the door support or the floating stopper. This is because when the rail 1 is terminated at such a position, a dust sweep port is formed on the ground between the rail 1 and the door support column 2. But,
The end of the rail 1 may extend to the door support 2.

With the above arrangement, when the gate 4 is moved to the closed position, the wheels 51 of the front door 5f and the door case 5
The lower end of the side wall 53 a is fitted into the notch 73 of the floating stopper 7, and both the locking parts 53 b of the door case 53 are positioned below the upper wall 71 of the floating stopper 7. Therefore, even if it is attempted to lift the front part of the gate with the inner hook 6 locked (fully tightened), the front part of the gate is lifted by the locking action between the locking part 53b of the front door wheel 5f and the upper surface wall 71 of the floating stopper 7. Is blocked.

The locking portion 74 of the retaining member 7 is not indispensable, but when the retaining portion 74 is provided and retained on the rail 1, the lifting force applied to the retaining member 7 from the gate via the front door wheel is provided. Are distributed to the rails 1, so that the rails 1 also greatly contribute to the prevention of lifting, and the floating retaining effect of the floating retaining device is remarkably increased.

The retaining member 7 may be buried in the ground together with the retaining member after the retaining member 7 has been attached to the rail 1 in advance, or may be retrofitted to the end of the existing rail.

FIG. 5 is a front view of an essential part showing another preferred embodiment of the present invention, and FIG. 6 is a sectional view taken along line YY of FIG. In this embodiment, the front door car 5f is not different from that of the previous embodiment. The floating stopper 7 is also substantially the same as that of the previous embodiment, but is slightly different from the retaining member 74 of the leg 72.
Is provided near the lower end of the leg 72. The locking portion 74 extends from the end of the rail 1 ending at a position close to the front door 5f of the gate in the closed position to one end of the connection fitting 8 buried by extending between the door support columns 2. It is connected to the rail 1 via a part.

The connecting fitting 8 is provided with two locking portions 7 of the floating stopper 7.
It is formed in a band shape having a width substantially equal to the distance between the four, and has an engaging portion 81 formed by cutting and raising a widthwise middle portion at one end portion, and the other end portion is bent downward at a right angle, It has a fixing portion 82 fixed to the front of the door support column 2. Then, one end of the connection fitting 8 is connected to both engagement portions 8.
1, the lower end of the rail 1 is fitted and locked so as to hold the lower end of the rail 1, and is fixed to the rail 1. , And is firmly fixed to the door support. At one end of the connection fitting 8, both ends in the width direction are engaged with the locking portions 74 of the floating stopper 7, or a locking portion between the end of the connection fitting 8 and the floating stopper 7 is provided. It is connected by welding, screwing, etc.
Are connected. In this embodiment, the floating stopper 7 is connected to the end of the rail 1 and the door support
, The effect of preventing the locked gate from being lifted is further ensured.

The floating stopper 7 and the connecting bracket 8 are connected to the rail 1
And the connection fitting may be fixed to the door support column 2 and the retaining member 7 and the rail 1 may be embedded together in the ground. It is easier to manage the member and to attach the retaining member 7 to the connecting member 8 beforehand. In the case of using a door roller having the same structure as the front door wheel 5f before and after the gate, regardless of whether the opening or closing of the gate is on the left or right side,
It can be installed regardless of the type of door roller, and can also exhibit a floating retaining effect.

[0021]

As described above, according to the first aspect of the present invention, since the door wheel does not have a projection protruding from the case in the closing direction, the risk of injury or damage to clothes when closing the gate is eliminated. . In addition, since the floating stopper is locked to the rail,
The gate lifting prevention effect is assured.

According to the second aspect of the present invention, since the retaining member is fixed to the rail and the door support column via the connecting metal, the effect of preventing the gate from being lifted is enormous.

[Brief description of the drawings]

FIG. 1 shows an installed state of a sliding door type gate according to the present invention;
Front view seen from inside the site.

FIG. 2 is a perspective view of an anti-floating device.

FIG. 3 is a front view of a main part showing a positional relationship between components of the retaining device when the gate is at a closed position.

FIG. 4 is a sectional view taken along line XX of FIG. 3;

FIG. 5 is a front view of a main part showing another preferred embodiment of the present invention.

FIG. 6 is a sectional view taken along line YY of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rail 2 Door support column 3 Intermediate column 4 Gate 5f, 5r Door wheel 51 Wheel 52 Axle 53 Door wheel case 53a Side wall 53b Lock portion 6 Inner lock 7 Float stop 71 Upper surface wall 72 Leg 73 Notch 74 Lock portion 8 Connection fitting 81 Engagement part 82 Fixation part

Claims (2)

[Claims] A door support strut is provided at a position near one end of a rail laid on the ground, and an intermediate support is erected at a position near an intermediate portion of the rail, and a guide roller provided at an upper portion of the intermediate support is provided. The upper part of the gate that is movably mounted on the rail via a door wheel is guided, and when the gate is moved to a closed position where the front part abuts the door support post, the door support and the front of the gate are moved. A sliding door type gate retaining device provided with an inner lock for locking a part, comprising a door roller at a front part of the gate and a floating stopper provided at a position near a front end of the rail, The front door roller is provided with a locking portion projecting outward at a lower end portion of a side wall of the door roller case, and the floating stopper is provided with an upper surface wall located above the rail, and both ends of the upper surface wall. Leg extending downward from the part and buried in the ground The top wall has a notch for fitting the lower end of the side wheel of the door car case with the wheel of the front door of the door moved to the closed position, and the front part of the gate moved to the closed position. Engaging with the locking portion of the case of the door roller, the upper portion thereof, the leg portion has a locking portion to be locked on the lower side at both left and right ends of the rail,
Sliding door type gate retaining device. 2. A door support strut is provided near one end of a rail laid on the ground, and an intermediate support is erected at a position close to an intermediate portion of the rail, and a guide roller provided above the intermediate support is provided. The upper part of the gate that is movably mounted on the rail via a door wheel is guided, and when the gate is moved to a closed position where the front part abuts the door support post, the door support and the front of the gate are moved. A door lock provided with an inner lock for locking a part, wherein the door lock at the front of the gate, a float stopper provided at a position near the front end of the rail, and the float stopper. The door lock at the front of the gate is provided with a locking portion projecting outward at a lower end portion of a side wall of the door case, and the floating stopper is formed of the connecting member connected to the door support post. Top wall located above the rail and its top And a leg extending downwardly from both ends of the door, and the upper surface wall is fitted with a wheel of a front door of a gate moved to a closed position and a lower end of a side wall of the door case. A notch portion of the upper surface wall, the portion near the notch portion covers the locking portion of the case of the front door wheel of the gate moved to the closed position, the leg portion projects inward, and the The coupling device has an engagement portion that is engaged with one end portion, and the one end portion is fixed to the rail, the leg portion of the floating stopper is fixed, and the connection tool extends from the rail to the door support column. Wherein the other end portion is fixed to the door support column.