JP5487153B2 - Non-rail sliding door - Google Patents

Description

  The present invention relates to a non-rail sliding door. More specifically, the present invention relates to a non-rail sliding door that can be opened and closed with a uniform operating force in a non-rail sliding door that can be opened and closed without using a rail.

As a conventional example of a non-rail sliding door, there is a technique disclosed in Patent Document 1. As shown in FIG. 9, this prior art has a structure in which a horizontally long door 101 is suspended on a guide roller applied to a support 102, and the door 101 is movable in the longitudinal direction.
The support body 102 is fixed to the road surface, and a guide roller A (A1, A2, A3, A4) for guiding the door body 101 is provided on the support body 102, and the movement of the door body 101 in the longitudinal direction is performed. It is possible. A gently-curved steel push-up member 103 is disposed below the door body 101. The push-up member 103 includes a support roller B (B1, B2) provided on the support body 102 and a press roller C ( C1 and C2) are movable along the door body 101.

  Push-up rollers D1 and D2 are attached to both ends of the push-up member 103, and the push-up rollers D1 and D2 support the weight of the door body 101 while allowing the door body 101 to move laterally. Engagement pieces 104 are attached to the lower surfaces of both ends of the door body 101 so as to push and move the push-up member 103 against the end of the push-up member 103. Stoppers 105 are also attached to both ends of the push-up member 103, and the stopper 105 hits the support rollers B1 and B2 that are pivotally supported by the support body 102 to restrict the movement range of the push-up member 103. It is like that.

  When the door body 101 is opened and closed, when the engaging pieces 104 at both ends of the door body 101 hit the end of the push-up member 103, the push-up member 103 follows the door body 101 as shown in FIG. Move. Although it moves to the left in FIG. 10, it is the same when moving to the right. In this way, the push-up member 103 is moved by being pushed by the door body 101. At this time, since the push-up member 103 is curved in an arc shape, the end on the moving side is higher by the dimension Z than the center portion. Thus, the front end portion of the door body 101 is pushed up, so that the drooping of the door body 101 can be suppressed. For this reason, the door body 101 is prevented from drooping when moving, and the gate can be opened and closed without any trouble.

By the way, the overall opening / closing operation of the conventional non-rail sliding door is as shown in FIG.
The left side of the figure shows the opening operation, and the right side shows the closing operation. Reference numeral (1) during the opening operation indicates a fully closed state, (2), (3) and (4) indicate states during the opening operation, and (5) indicates a fully open state.
Reference numeral (6) at the time of the closing operation indicates a fully opened state, (7), (8) and (9) indicate states during the closing operation, and (10) indicates a fully closed state.

  At the time of the above opening operation, the engaging piece 104 at the rear end of the door body 101 does not hit the lifting member 103 from the start of the opening operation (1) to immediately before the opening operation (3). The member 103 is in an unconstrained state. Then, in the state of (3), the engagement piece 104 hits the push-up member 103, and thereafter, as shown in (4), the push-up member 103 is moved in the opening direction together with the door body 101, so that the fully-open state It reaches (5).

  Further, during the closing operation, the engagement piece 104 at the rear end of the door body 101 does not contact the lifting member 103 from the start (6) of the closing operation to immediately before the closing operation (8). The member 103 is in an unconstrained state. Then, in the state of (8), the engagement piece 104 hits the push-up member 103, and thereafter, as shown in (9), the push-up member 103 is moved in the closing direction together with the door body 101, so that it is fully closed. State (10) is reached.

  However, the conventional example has a problem that the operation becomes heavy during opening and closing. That is, in the state before and after (4) during the opening operation and the state before and after (8) during the closing operation, the front end portion of the door body 101 tends to hang down and its weight w is applied to the front end of the push-up member 103. At this time, the push-up member 103 pushes up the door body 101 in a state where the tip of the push-up member 103 is moved upward to prevent drooping. Moreover, since the push-up member 103 is pushed and moved together with the door body 101 while the weight w and the push-up force are antagonized, the resistance is extremely large. For this reason, the conventional technique has a problem that the opening / closing operation becomes locally heavy during the opening / closing operation.

Japanese Patent No. 3078222

  In view of the above circumstances, an object of the present invention is to provide a non-rail sliding door that can be opened and closed with a light and uniform operating force.

The non-rail sliding door according to the first aspect of the invention is a door body that moves between an opening operation end and a closing operation end to open and close the gate, and in the same direction as the door body to support the door body during the opening and closing operation. A lifting member that moves; a guide roller that movably supports the door member; and a guide roller that movably supports the lifting member; and starting the opening and closing operation of the door member It has a traction mechanism that pulls the push-up member from time to time and releases traction at an intermediate position in the opening / closing stroke of the door body.
A non-rail sliding door according to a second aspect of the present invention is the non-rail sliding door according to the first aspect, wherein the push-up member is a movement range restriction having a movement limit at a position that supports an intermediate position of the door body at an opening operation end and a closing operation end of the door body The movement range is limited by a mechanism, and the traction mechanism includes an engagement member attached to the lower surface of both end portions of the door body, and the engagement member is pushed when the door body is opened and closed. Engage with the lifting member and disengage from the lifting member at the limit of movement of the lifting member.
A non-rail sliding door according to a third aspect of the present invention is the non-rail sliding door according to the second aspect, wherein the push-up member includes a push-up roller that supports the door body on the upper surface of both end portions, and the door body is engaged with the engagement member on the lower surface of both end portions. The engaging member is formed of a leaf spring, and the leaf spring bends to allow the operation to disengage from the position where the push-up roller is pushed. To do.
A non-rail sliding door according to a fourth aspect of the present invention is the non-rail sliding door according to the third aspect of the present invention, wherein the plate spring is a long plate-shaped first spring consisting only of a flat portion, and a long plate-shaped second spring in which the flat portion and the inclined portion are continuously connected. The first spring and the second spring are fixed to each other at the base portion, and the free end portion is allowed to move freely.

According to the first invention, the pulling mechanism pulls the push-up member from the start of the opening / closing operation and releases the pulling at an intermediate position in the opening / closing stroke of the door body, so it must support the drooping load of the door body. The push-up member stops moving after the intermediate position of the opening / closing stroke. Therefore, the subsequent opening / closing operation may be performed only by moving the door body, and it is not necessary to move the push-up member while supporting the hanging load of the door body. For this reason, the opening / closing operation force does not increase locally, and the opening / closing operation can be performed with a uniform light force.
According to the second aspect of the present invention, the push-up member moves beyond the movement limit supporting the intermediate position when the door body moves to the opening operation end or to the closing operation end by the movement range restriction mechanism. There is nothing. Since the engaging member engages and pulls up with the push-up member up to the movement limit, the push-up member can continue to support the hanging of the door body before the operating force becomes heavy. Further, since only the door body moves after the push-up member reaches the movement limit, the door body can be opened and closed with a uniform light force.
According to the third aspect of the invention, the plate spring itself has flexibility, and the push-up roller has a circular outer peripheral surface, so that the plate spring bends along the outer periphery of the push-up roller. Thus, the door body can be engaged and released while moving, and the door body opening / closing operation is not hindered. Further, since the bending of the leaf spring proceeds gradually, no shock is generated at the time of engagement and release, and smooth release of engagement can be performed.
According to the fourth invention, since the first spring and the second spring freely move on the free end side, when the inclined portion of the second spring is bent, the first spring and the second spring serve to suppress the movement of the first spring. Due to the action of the first spring, the second spring can be easily bent and a sufficiently large spring force can be applied. By combining the two springs in this way, it is possible to perform the release smoothly while ensuring the engagement.

It is principal part explanatory drawing which shows the traction mechanism in the non-rail sliding door which concerns on one Embodiment of this invention. It is operation | movement explanatory drawing of a traction mechanism. It is explanatory drawing of the opening / closing operation | movement and operation force equalization effect | action in the non-rail sliding door of this invention. It is the whole non-rail sliding door front view concerning one embodiment of the present invention. It is a whole top view of the non-rail sliding door of FIG. FIG. 5 is a state diagram during the opening operation of the non-rail sliding door of FIG. 4. It is a state figure at the time of the gate opening in the non-rail sliding door of FIG. 3 is an enlarged front view of a support body 2. FIG. It is explanatory drawing of the conventional non-rail sliding door. It is action | operation explanatory drawing of the raising member in the conventional non-rail sliding door. It is explanatory drawing of the opening / closing operation | movement and problem in the conventional non-rail sliding door.

Next, an embodiment of the present invention will be described with reference to the drawings.
First, the whole structure of the non-rail sliding door A to which the present invention is applied will be described with reference to FIGS.
The non-rail sliding door A includes a door body 1, a support body 2, and a push-up member 3. The door body 1 is a known horizontally long door in which a large number of vertical bars are fixed between an upper horizontal fence and a lower horizontal fence and vertical fences are fixed at both ends.
The push-up member 3 is made of an arcuately curved steel material disposed below the door body 1, and both ends thereof are higher than the central portion, and rollers D1, which support the door body 1 from below at both ends thereof. D2 is attached.

The support body 2 is a structure having two struts 2a and 2b as strength members. First and second guide roller units G1 and G2 are disposed below the support 2. These basic structures are common to the conventional example of FIG.
In addition, on the left side of the door body 1, a door-to-door pillar P is erected so as to stand vertically from the ground. W is a fence provided on the left and right sides of the gate.

The door body 1 moves laterally while being suspended on the support body 2 to open and close the gate. FIG. 4 shows a closed state, and the door body 1 is located at the closing operation end. FIG. 6 shows a state in the middle of opening the gate. FIG. 7 shows a state where the gate is opened, and the door body 1 is located at the opening operation end.
In the closed state shown in FIG. 4, the right end of the door body 1 is cantilevered by the support body 2, and the lifting roller D <b> 1 of the lifting member 3 is supported so as to push up the intermediate position of the door body 1. The drooping of the left end of the door body 1 is prevented.
In the state in the middle of the opening shown in FIG. 6, the support body 2 remains supporting the intermediate portion of the door body 1.
In the open state shown in FIG. 7, the left end portion of the door body 1 is cantilevered by the support body 2, and the push-up member 3 is supported so as to push up the intermediate position of the door body 1. Prevents drooping.
In the present invention, the push-up rollers D1 and D2 of the push-up member 3 support the intermediate position of the door body 1 at the opening operation end and the closing operation end of the door body 1. It does not need to be a strictly intermediate position in the width direction (laterally long direction) of the body 1, and means a region having a certain extent. In short, any position that can prevent the door body 1 from hanging down is acceptable.

FIG. 8 is an enlarged view of the support body 2 suspending the door body 1 and the push-up member 3 in the VIII portion of FIG.
A base member 7 is provided at the lower part of the support 2, and this base member 7 is fixed to the foundation concrete in the ground with anchor bolts 5. First and second guide roller units G <b> 1 and G <b> 2 are installed on the upper surface of the base member 7 via a connecting member 20. As illustrated, the first guide roller unit G1 and the second guide roller unit G2 are provided apart from each other in the left-right direction of the support body 2 (same as the opening / closing direction of the door body 1).

The mounting position of each guide roller on the support 2 is as follows.
A guide roller A3 that supports the door 1 and guide rollers C1 and B1 that sandwich the push-up member 3 from above and below are pivotally supported by the first guide roller unit G1. A guide roller A4 that supports the door body 1 and guide rollers C2 and B2 that sandwich the push-up member 3 from above and below are pivotally supported on the second guide roller unit G2. Each of these guide rollers is attached to attachment plates 30 provided upright at both ends of the connecting member 20.
Guide rollers A 1 and A 2 for guiding the movement of the door body 1 are attached to the upper portion of the support body 2.

Next, the push-up member 3 which is a precondition for the structure of the pulling mechanism of the present invention will be described.
As shown in FIG. 4, stoppers 4 are attached to both ends of the push-up member 3. Although only the stopper 4 at the left end is shown in FIG. 8, this stopper 4 hits the mounting plate 30 to which the guide roller B (B1, B2) or the guide roller C (C1, C2) is attached, and the lifting member 3 Is to stop the movement. In other words, the movement limit of the push-up member 3 is regulated so that the stoppers 4 at both ends move within the region where the stopper 4 contacts the mounting plate 30. This movable area is from about half the moving area of the door 1 to the same length. The movement range regulating mechanism referred to in the claims comprises the stopper 4 and the mounting plate 30.

  As shown in FIG. 4, the push-up rollers D1 and D2 are attached to the upper surfaces of both end portions of the push-up member 3 as described above. Although only the left side lifting roller D1 is shown in FIG. 8, these lifting rollers D1 and D2 are disposed on the door body 1 when the door body 1 moves further from the intermediate position of the opening / closing stroke during the opening / closing operation. It is a push-up support that prevents drooping. Accordingly, while the moving end side of the door body 1 is moving in the region closer to the support body 2 than the intermediate position of the opening / closing stroke, there is no significant sag, so there is no gap between the push-up roller D1 and the lower surface of the door body 1. It is in a state of being touched or lightly touched.

Next, the traction mechanism will be described with reference to FIG.
The pulling mechanism includes a leaf spring 40 and push-up rollers D1 and D2 of the push-up member 3.
1, only the leaf spring 40 on the left side of the door body 1 and the push-up roller D1 on the left side of the push-up member 3 are shown, but the leaf spring 40 and push-up (not shown) are shown on the right side of the door body 1 and the push-up member 3. A pulling mechanism is configured with the roller D2. The leaf spring 40 is an engagement member referred to in the claims.

The leaf spring 40 includes a first spring 41 and a second spring 42.
The first spring 41 is a long plate-like spring composed of only a flat portion. The second spring 42 is a long plate-like spring in which a flat portion 43, a triangular inclined portion 44, and a flat portion 45 are formed continuously. The inclined portion 44 has inclined surfaces on both sides, making it easier to get over circular push-up rollers D1 and D2 (only D1 is shown in FIG. 1).
The bases (the left side in the figure) of the first spring 41 and the second spring 42 are fixed to the bottom plate 51 of the door body 1 with rivets 46 and the like, and a pressing member 52 having an L-shaped cross section is placed on the top surface and bolts 53 to the bottom plate 51. It is fixed. However, the free ends (the right side in the figure) of the first spring 41 and the second spring 42 are not restrained at all, and free movement is allowed.

The leaf springs 40 having the above structure are fixed to the lower surfaces of both end portions of the door body 1. On the upper surfaces of both end portions of the lifting member 3, push rollers D1 and D2 (only D1 is shown in FIG. 1) are attached to the mounting bracket. 35 is attached.
A pressing member 15 is provided on the lower surface of both end portions of the door body 1 on the outer side of the leaf spring 40. The pressing member 15 is a member for hitting the mounting bracket 35 of the lifting rollers D1 and D2 (only D1 is shown in FIG. 1) to push the lifting member 3 back following the movement of the door body 1.

Next, the engagement release operation between the leaf spring 40 and the push-up roller D1 will be described with reference to FIG.
FIGS. 6 and 7 show that the leaf spring 40 is positioned on the right side of the push-up roller D1 and the push-up member 3 is pulled to the left side by pushing the push-up roller D1 when the door body 1 moves to the left side. It is in a state of letting go.
FIG. 8 (8) shows a state where the leaf spring 40 is bent and disengaged when the push-up member 3 reaches the movement limit and stops moving. The movement of the first spring 41 and the second spring 42 at this time will be described later.
FIG. 9 (9) shows a state in which the leaf spring 40 has passed over the push-up roller D1, and thereafter the door body 1 continues to move, and the push-up member 3 is stopped from moving by the movement range regulating mechanism described above. It becomes a state.

Next, the opening / closing operation of the door body 1 using the traction mechanism and the operation force equalizing action at that time will be described with reference to FIG.
The right side of FIG. 3 shows the closing operation, and the left side shows the opening operation. First, the closing operation will be described.
At the start of the closing operation (6), the leaf spring 40 is in a position to press the push-up roller D1 as in FIG. 2, so the push-up member 3 is pulled and pulled out in the opening direction from the start of the closing operation. The same applies to (7) during the closing operation, and the push-up member 3 is pulled.
During the closing operation (8), the push-up member 3 reaches the movement limit (specifically, the right stopper 4 is placed on the right side of the support 2 (not shown, but the mounting plate 30 in the support 2). Therefore, the movement is stopped, and the leaf spring 40 gets over the push-up roller D1 while being bent as shown in FIG. 2 (8). Thereby, only the door 1 can be moved.
Next, after the closing operation (9), the gate is closed (10).

  In the above closing operation, in the prior art, the door body 1 and the push-up member 3 move together while supporting the weight of the door body 1 as shown in FIG. It was. However, in the present invention, after (9) in FIG. 3, the push-up member 3 stops moving. Then, the door body 1 is in a state of only sliding on the push-up rollers D1, D2 at both ends of the push-up member 3 from the previous stage (8). Therefore, the operation force for the closing operation of the door body 1 hardly changes, and the closing operation can be performed with a uniform light operation force. This is an advantage of the present invention during the closing operation.

Next, the opening operation will be described based on (1) to (5) shown on the left side of FIG.
At the start of the opening operation (1), the leaf spring 40 is in a position to push the push-up roller D1 in the same manner as in FIG. 2 (however, the left and right sides are reversed). Pull out in the direction of the gate. The same applies to (2) during the opening operation, and the push-up member 3 is pulled.
In (3) during the opening operation, the push-up member 3 reaches the movement limit (specifically, the stopper 4 on the right side stops against the left side of the support body 2), so the movement is stopped, and ( As shown in 8) (however, the left and right sides are reversed), the leaf spring 40 gets over the push-up roller D1 while being bent. Thereby, only the door 1 can be moved.
Next, after the state of (4) during the opening operation, when the gate is opened, the state of (5) is obtained.

  Even in the above opening operation, the push-up member 3 stops moving after (4) in FIG. The door body 1 is in a state of only sliding on the push-up rollers D1 and D2 at both ends of the push-up member 3 from the previous stage (3). Therefore, the operation force for the opening operation of the door body 1 hardly changes, and the closing operation can be performed with a uniform light operation force. This is an advantage of the present invention during the opening operation.

Next, advantages of the leaf spring 40 will be described.
As shown in FIG. 2 (8), the first spring 41 and the second spring 42 are free to move freely on the free end side, so that both the leaf springs 41 and 42 independently exhibit elasticity. For this reason, as shown in the drawing, when the inclined portion 44 of the second spring 42 is bent and lifted upward, the first spring 41 functions to restrain it from moving too much upward. Due to the action of the first spring 41, the second spring 42 can be a flexible spring. Moreover, a sufficiently large spring force can be applied by the two springs. Therefore, since excessive bending is suppressed, engagement does not come off arbitrarily.
In this way, the leaf spring 40 can be released smoothly while the engagement is ensured by combining two springs.

  In addition, the leaf spring 40 itself is flexible, and the push-up rollers D1 and D2 have a circular outer peripheral surface, so that the plate spring 40 extends along the outer circumference of the push-up rollers D1 and D2. By being bent, it is possible to release the engagement while moving the door body, and the opening / closing operation of the door body 1 is not hindered. Further, since the bending of the leaf spring 40 gradually proceeds, no shock is generated at the time of engagement and release, and smooth release of engagement can be performed.

(Other embodiments)
In the above embodiment, the leaf spring 40 is composed of two springs. However, the present invention is not limited to this, and various springs can be used as long as they have a necessary spring force.
The above embodiment is an embodiment in which the door body 1 is a single sheet, but the present invention is also applied to a non-rail sliding door having two doors in which a support body 2 is installed on both the left and right sides of the gate and each door body 1 is suspended. The support structure of the invention can be applied.

DESCRIPTION OF SYMBOLS 1 Door body 2 Support body 3 Push-up member D1 Push-up roller 40 Leaf spring 41 1st leaf spring 42 2nd leaf spring

Claims (4)

A door that moves between an open end and a closed end to open and close the gate;
A push-up member that moves in the same direction as the door body to push-up and support the door body during opening and closing operations;
A support roller having a guide roller for movably supporting the door body and a guide roller for movably supporting the push-up member;
A non-rail sliding door having a pulling mechanism that pulls the push-up member from the start of the opening / closing operation of the door body and releases the pulling at an intermediate position of the opening / closing stroke of the door body. The push-up member has a movement range restricted by a movement range restriction mechanism having a movement limit at a position that supports an intermediate position of the door body at an opening operation end and a closing operation end of the door body,
The traction mechanism includes an engagement member attached to the lower surfaces of both end portions of the door body,
The engagement member engages with the push-up member at the start of the opening / closing operation of the door body, and disengages from the push-up member at a movement limit of the push-up member. Non-rail sliding door. The push-up member includes a push-up roller that supports the door body on the upper surface of both ends, and the door body includes the engagement member on a lower surface of both ends.
The non-rail according to claim 2, wherein the engagement member is configured by a leaf spring, and when the leaf spring is bent, an operation of disengaging from the position where the push-up roller is pushed is allowed. sliding door. The plate spring is composed of a long plate-shaped first spring composed of only a flat portion and a long plate-shaped second spring in which the flat portion and the inclined portion are continuously connected. The first spring and the second spring are The non-rail sliding door according to claim 3, wherein the non-rail sliding doors are fixed to each other at the base, and the free end is allowed to move freely.

Images