JP5047818B2 - Suspension device for hanging door - Google Patents

Description

  The present invention relates to a suspension device for hanging doors such as a single sliding door or a folding door. Specifically, the present invention relates to a runner body that can run along a traveling rail, a connecting shaft that projects downward from the runner body, and a suspension shaft. The present invention relates to a hanging device for hanging a door, comprising a runner fixture fixed to an upper portion of a door and connected to the connecting shaft, wherein the connecting shaft is detachable from the runner fixture.

  Conventionally, as a suspension device of this type, Japanese Patent Application Laid-Open Publication No. 2004-228542 has an opening in a side surface for introducing the mounting portion from the horizontal direction in the mounted portion, and the opening is formed in the vertical direction. , A temporary holding portion connected to the back side of the introduction portion, and a removal portion provided between the temporary holding portion and the introduction portion to prevent the attachment portion from moving in the horizontal direction and coming out of the temporary holding portion. Provided with a stop part and a fixed part for continuous fixing of the mounting part in the horizontal direction and the vertical direction by relative movement in the vertical direction of the mounting part and the mounted part. Is disclosed.

Furthermore, the following Patent Document 2 includes a suspension shaft attached to a runner body that travels on a rail, and a connecting member attached to a door plate, and the suspension shaft has a relatively large diameter portion and a relative diameter. And a small-diameter portion having a small diameter, and the connecting member is elastic and has two pieces arranged opposite to the axis of the suspension shaft so as to be narrowed downward. A locking piece that is locked to the flange portion is provided, and the suspension member and the connection member are attached and detached by moving the connection member in two directions, ie, the radial direction and the axial direction of the suspension shaft.
Japanese Patent No. 3764735 Japanese Patent Laid-Open No. 2007-2466

  However, in the suspension device described in Patent Document 1, when the sliding door is attached, the attached portion moves from the introduction portion of the attached portion toward the temporary holding portion by horizontally moving the attached portion toward the attaching portion. Since it is pushed in the horizontal direction and temporarily held, it is secured at the retaining part, and then the sliding door is lifted up so that the two-step operation of fixing the sliding door is required. It was complicated.

  The suspension device described in Patent Document 2 also requires two steps of operation for moving the suspension shaft in two directions, ie, the radial direction of the suspension shaft and the axial direction, and the suspension work is complicated. Further, the locking piece is formed in a long shape extending from the lower part of the fitting part to the lower part of the expanding part, and when locking with the suspension shaft, the flange part of the circular suspension shaft and Since the structure is such that two parallel long locking pieces are engaged, it is necessary to apply an extra pushing force to the extent that the flange portion expands the locking pieces when moving in the axial direction. There were problems such as poor workability. Furthermore, in order to release the engagement state, the engagement piece is expanded by pushing up a mountain-shaped unlocking body installed below the engagement piece. In order to expand, a large push-up force must be applied to the unlocking body, and there is a disadvantage that workability is poor in this respect.

  Therefore, the main problem of the present invention is that the suspension can be completed substantially by the operation of horizontal movement, facilitate the suspension work, and maintain the reliable suspension state and easily release the suspension state. The object is to provide a door suspension device.

In order to solve the above-mentioned problems, the present invention according to claim 1 is fixed to a runner body that is allowed to travel along a traveling rail, a connecting shaft that protrudes downward from the runner body, and an upper portion of a suspension door. A hanging door hanging device connected to the connecting shaft, wherein the connecting shaft is detachable from the runner fitting,
The connecting shaft includes a large diameter portion having a relatively large diameter,
The runner fittings are arranged to face each other on the left and right sides, and are supported so as to be rotatable about a vertical axis. And a connecting shaft attaching / detaching mechanism including a lock member that cannot be clamped, and an engaging block that engages with the lock member and allows the connecting shaft to be held and released. A suspension device for a hanging door is provided.

  In the first aspect of the present invention, the runner fixtures are arranged in a pair of left and right sides, are supported rotatably around a vertical axis, and are rotated by insertion of the connecting shaft from the horizontal direction. Since it has a lock member that holds the large-diameter portion of the connecting shaft so that it cannot be removed, the runner mounting tool is fixed in a state where the runner body with the connecting shaft protruding downward is fixed to the traveling rail. By simply pushing the suspended door from the horizontal direction, the connecting shaft is fixed to the runner attachment, and there is no need to move the suspension door upward as in the conventional suspension device. It can be made easier.

  In addition, the runner fixture includes an engagement block that engages with the lock member and allows the connection shaft to be held and released, so that the connection shaft is securely held by the lock member. Thus, the suspended state can be reliably maintained, and the suspended state can be easily released.

As a second aspect of the present invention, the lower end of the lock member is provided with a protruding shaft that protrudes downward, and the engagement block is disposed on the lower surface side of the lock member and suspended by a spring member. A biased portion is provided that is biased and held outwardly from the door surface, and the upper surface is engaged with the protruding shaft,
In the plan view, the concave portion slides with the projecting shaft due to the rotation of the lock member accompanying insertion of the connecting shaft from the horizontal direction on both the left and right sides, and resists the engagement block against the spring biasing force. An inclined side portion for immersing in the runner fitting is formed, and the engagement block is moved by a spring biasing force when the protruding shaft passes over the inclined side portion at an intermediate portion of the inclined side portion. Then, by holding and holding the protruding shaft so as not to move, a holding portion for the protruding shaft that holds the connecting shaft in a state in which the connecting shaft cannot be removed is formed, and the engagement is provided at the position of the opposing surface of the holding and holding portion. 2. A chevron-shaped release portion is formed that is sandwiched between the projecting shafts by a block immersing operation and opens the space between the projecting shafts to release the holding state of the connecting shaft. A suspension device for a hanging door is provided.

  The invention according to claim 2 is a specific structure of the lock member and the engagement block for holding and releasing the pinching state of the connecting shaft by the engagement block.

  As a third aspect of the present invention, there is provided the suspension device for hanging a door according to any one of the first and second aspects, wherein each lock member is formed with a gear portion that meshes with each other.

  According to the third aspect of the present invention, each of the lock members is formed with a gear portion that meshes with each other, thereby rotating the pair of left and right lock members in conjunction with each other. Accordingly, it is possible to avoid the problem that the connecting shaft abuts only on one lock member when the suspension door is installed, and only this one lock member is locked.

  As described above in detail, according to the present invention, the suspension can be substantially completed by an operation of horizontal movement, the suspension work can be facilitated, and the reliable suspension state can be easily maintained and the suspension state can be easily released. It becomes.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First embodiment]
FIG. 1 shows a folding door 2 supported by a hoisting apparatus 1 according to the present invention, (A) is a front view, and (B) is a BB cross-sectional view thereof.

  As shown in FIG. 1, the folding door 2 includes an upper guide rail 3 disposed above the opening, a lower guide rail 4 disposed below, and a runner fixed to the upper end of the folding door 2. The main body 6 is guided to travel along the upper guide rail 3, and the lower traveling body 5 fixed to the lower end of the folding door 2 is guided to travel along the lower guide rail 4 so that it can be opened and closed. It has become.

  The hoisting device 1 is fixed to the runner body 6 that can run along the upper guide rail 3, a connecting shaft 7 that protrudes downward from the runner body 6, and the upper part of the folding door 2. The runner attachment 8 is connected to the shaft 7, and the connection shaft 7 is detachable from the runner attachment 8.

  As shown in FIG. 2 and FIG. 3, the runner body 6 includes a total of four rollers 11, 11,... That are supported on each side by roller support shafts 10A, 10B. Are movable along the upper guide rail 3 by rolling the running grooves 3a, 3a of the upper guide rail 3. Further, a connecting shaft 7 connected to the runner mounting tool 8 is attached downward from a substantially central portion between the roller support shafts 10A and 10B. Here, the runner body 6 is provided with an adjusting mechanism for adjusting the vertical position of the connecting shaft 7.

  Although the said adjustment mechanism may be what is generally used, the adjustment mechanism described in Unexamined-Japanese-Patent No. 2000-320230 can be used conveniently. In detail, as shown in FIG. 3, the runner body 6 has a hollow portion 6a formed in a range including the roller support shaft 10B on one side, and the roller support shaft 10B supporting the roller 11 is used as a common support shaft. A swingable swing piece 12 is provided. The swing piece 12 has a vertical shaft insertion hole 12 a formed at the tip of the swing groove, and the upper portion of the connecting shaft 7 is inserted through a shaft through hole 6 b formed on the lower surface side of the runner body 6. At the same time, after the upper end portion of the connecting shaft 7 is inserted into the shaft insertion hole 12a, the tip is crimped and the connecting shaft 7 is held so as not to come out downward. In addition, on the lower surface side of the runner body 6, there is provided a vertical adjustment screw 13 screwed in an obliquely upward direction from the side portion, and the tip of the vertical adjustment screw 13 is a screw on the lower surface of the swing piece 12. It abuts against the abutment surface 12b.

  In order to adjust the vertical position of the connecting shaft 7, a screwdriver (Screwdriver) S is brought in, the vertical adjustment screw 13 is rotated around the axis to be retreated, and the swinging piece 12 is swung. This is done by adjusting the position.

  In the case of such a vertical adjustment mechanism, the connecting shaft 7 is supported via the swing piece 12, and the vertical movement of the connecting shaft 7 is performed by swinging the swing piece 12 with the vertical adjustment screw 13. Accordingly, the connecting shaft 7 does not receive any pressing force in the horizontal direction from the adjusting screw 13 and is always supported in a suspended state by the swing piece 12. Will always be maintained smoothly.

  As shown in FIG. 2, the connecting shaft 7 includes a flange-shaped large-diameter portion 7b having a relatively large diameter at the lower end of the shaft portion 7a.

  As shown in FIG. 4, the runner fixture 8 is housed in the housing case 20 in an assembled state with the housing case 20 having an internal space communicating from the opening, and is disposed in a pair of opposite sides. Lock members 21, 21 that are rotatably supported around a vertical axis, rotate by insertion of the connecting shaft 7 from the horizontal direction, and hold the large-diameter portion 7 b of the connecting shaft 7 in a non-removable manner; An engagement block 22 that engages with the lock member 21 to enable the connection shaft 7 to be held and released, and to hold the engagement block 22 in the outward direction (outward direction) of the suspension door 2. It is mainly comprised from the spring member 23 to do. Each of the lock members 21 and 21 is rotatably supported by a communication shaft 24 inserted from the upper surface of the housing case 20.

  As shown in FIG. 6, the storage case 20 has an internal space that communicates with an opening formed on the front surface, and a case body 25 that is embedded and fixed on the side surface side of the suspension door 2, and the suspension door. 2 and a mounting flange 26 having a substantially rectangular shape when viewed from the front.

  The case body 25 has a substantially cylindrical outer shape whose rear surface is closed, and a flat upper surface portion 25 </ b> A is formed so that the outer peripheral upper portion is flush with the upper surface of the hanging door 2. A groove portion 27 is formed in the upper surface portion 25A so that the shaft portion 7a of the connecting shaft 7 can be inserted in the horizontal direction. The introduction portion of the groove portion 27 is formed with a taper portion 27a that expands toward the opening side end so that the connection shaft 7 can be smoothly inserted.

  The upper surface portion 25A of the case body 25 is provided with a pair of left and right shaft insertion holes 25a and 25a through which the communication shaft 24 for rotatably supporting the lock member 21 is inserted on both sides of the groove portion 27. In addition, the support bases 25b and 25b protruding from both side surfaces inside the case body 25 are each provided with a shaft insertion hole 25c through which the communication shaft 24 is similarly inserted.

  The mounting flange 26 is provided with mounting holes 26a and 26a for mounting a fixing screw (not shown) for fixing to the side surface of the suspension door 2.

  As shown in FIG. 4, the pair of left and right symmetrical members of the lock member 21 are arranged opposite to each other in the case body 25 as shown in FIG. 4, and each lock member 21 is substantially semi-cylindrical as shown in FIG. It has the outer shape. The lock member 21 is provided with a shaft insertion hole 21a through which the communication shaft 24 is inserted at a position serving as a rotation center. In addition, when the lock members 21 and 21 are opposed to each other and are rotated around the vertical axis, the arc-shaped cutout portions are cut so that the lock members 21 and 21 are in contact with each other and the rotation is not hindered. 21b is provided.

  On the inner peripheral surface of the lock member 21, a small arc portion 21c having a relatively small inner diameter and a relatively large inner diameter are provided corresponding to the outer diameters of the shaft portion 7a and the large diameter portion 7b of the connecting shaft 7, respectively. A large arc portion 21d is formed, and a step is formed at the boundary portion. Thereby, the large diameter part 7b of the said connection shaft 7 is clamped by the said large circular arc part 21d in the clamping state by the locking members 21 and 21 so that it cannot be removed.

  A projecting shaft 30 projecting downward is provided at the lower end of the lock member 21. The protruding shaft 30 has an arbitrary shape such as a circular cross section (illustrated example), an elliptical cross section, a small judgment surface, etc., as long as it can slide smoothly with a concave portion 31 of the engagement block 22 described later. be able to. Among these, it is preferable to use a small judgment surface. If the protruding shaft 30 is a small determination surface, the movement of the engagement block 22 is realized, and the side surfaces of the linear portions are placed in a state of being accommodated in an accommodation holding portion 31b of the engagement block 22 described later. If it makes it contact | abut, it becomes possible to maintain a reliable accommodation state.

  As shown in FIGS. 4 and 5, the engagement block 22 is biased and held in the out-of-plane direction (outward direction) of the suspension door 2 by a spring member 23. One end of the spring member 23 is externally fitted to a convex portion 22 a provided at the center of the rear surface of the engagement block 22, and the other end is provided at the lower center of the rear surface of the case body 25. It is fitted on the convex portion 25d.

  Further, as shown in FIG. 8, a concave-shaped concave portion 31 is provided on the upper surface of the engagement block 22 in order to engage the protruding shaft 30 of the lock member 21. The concave portion 31 slides on the projecting shaft 30 due to the rotation of the lock member 21 accompanying the insertion of the connecting shaft 7 from the horizontal direction on the left and right sides in plan view, and the engagement block 22 is attached with a spring. Inclined side portions 31a and 31a are formed to be immersed in the runner attachment 8 against the force, and the protruding shaft 30 gets over the inclined side portion 31a at an intermediate portion of the inclined side portions 31a and 31a. At that time, the engagement block 22 is moved by the spring biasing force of the spring member 23, and the protruding shafts 30 and 30 are housed and held so as not to move, so that the connecting shaft 7 is held in a non-detachable state. A projecting shaft housing and holding portion 31b is formed, and the engaging block 22 is inserted into the opposing surface position of the housing and holding portion 31b so as to be sandwiched between the projecting shafts 30 and 30. Between 30 Yamagata sides shaped release portion 31c for releasing the holding state of the connecting shaft 7 by opening is formed.

  In addition, the front surface of the engagement block 22 is a flat pressing portion 22b for performing the immersion operation of the engagement block 22. In addition, in order to prevent excessive movement due to the immersion operation of the engagement block 22, a stopper portion 22c protruding downward from the bottom surface of the engagement block 22 is formed below the pressing portion 22b, and the stopper portion 22c is In order to lock, a step 25e protruding from the opening at a predetermined depth position is provided on the inner bottom of the case body 25.

  Next, a method for hanging and removing the hanging door 2 will be described with reference to FIGS. 9 is a vertical cross-sectional perspective view of the runner fixture 8 showing the construction procedure of the suspension method of the suspension door 2, FIG. 10 is a cross-sectional plan view thereof, and FIG. 11 is a cross-section showing the construction procedure of the removal method of the suspension door 2. It is a top view.

  First, the connecting shaft 7 is attached to the runner body 6 and the runner body 6 is attached to the traveling rail. Further, the runner fixture 8 is fixed to the suspension door 2, and the lock members 21 and 21 are held in the expanded position as shown in FIGS. 9 (A) and 10 (A).

  In this state, as shown in FIGS. 9A and 10A, the runner attachment 8 portion of the hanging door 2 is moved in the horizontal direction toward the connecting shaft 7. In addition, the vertical position of the connecting shaft 7 is previously set to the vertical position of the connecting shaft 7 of the runner body 6 so that the large diameter portion 7b is within the range of the formation height of the large arc portion 21d of the lock member 21. Adjust with the adjusting mechanism.

  When the sliding door 2 is further moved in the horizontal direction, the connecting shaft 7 enters the groove 27 of the case body 25 and the large-diameter portion 7b of the connecting shaft 7 as shown in FIGS. 9 (B) and 10 (B). And the shaft portion 7a come into contact with the large arc portion 21d and the small arc portion 21c of the lock member 21, respectively, and the lock member 21 starts rotating around the communication shaft 24 as a rotation center. As the lock member 21 rotates, the projecting shaft 30 slides on the inclined side portions 31a and 31a, so that the engagement block 22 starts moving in the immersion direction against the spring biasing force.

  Thereafter, when the protruding shaft 30 gets over the inclined piece portion 31a, the engagement block 22 moves in the direction of the outer surface of the sliding door (outward direction) by the spring biasing force, and the protruding shafts 30 and 30 cannot move to the housing holding portion 31b. It is accommodated and held (FIGS. 9C and 10C). Thereby, the construction of the suspension door 2 is completed.

  In the case of the hoisting device 1, the runner attachment 8 and the connecting shaft 7 can be connected by a substantially horizontal movement operation, so that the lower traveling bodies 5 and 5 are installed on the lower guide rail 4 in a plane. The two runner bodies 6 are positioned inside the folding door 2 bent in a V shape as viewed, and the runner attachment 8 is made to face the connecting shaft 7 while the folding door 2 is further folded. It is possible to connect the two by inserting the connecting shaft 7 into the runner attachment 8 just by pressing the folding door 2 so that it is folded from both sides. Suspension work can be performed easily and easily.

  Then, the removal method of the hanging door 2 is demonstrated. In this case, first, as shown in FIG. 11 (A), the front pressing portion 22b of the engagement block 22 is immersed against the spring urging force, and the housing holding portion 31b of the protruding shafts 30 and 30 is moved. Release the accommodation holding state. Then, simultaneously with the release of the housing and holding state, the release portion 31c is sandwiched between the protruding shafts 30 and 30 ((B) in the same figure). As a result, the space between the projecting shafts 30, 30 is expanded, and the projecting shafts 30, 30 ride on the inclined side portions 31 a, 31 a, so that the engagement block 22 is moved outward by the urging force of the spring member 23. When moved, the lock members 21 and 21 are rotated to release the holding state of the connecting shaft 7 so that the suspension door 2 can be removed (FIGS. (C) and (D)).

[Second embodiment]
The second embodiment is different from the first embodiment in the form of the lock member. Specifically, as shown in FIG. 12 and FIG. 13, a gear portion 28 a that protrudes in the lateral direction is formed on the lower surface of the main body portion of each lock member 28 so as to mesh with each other while being opposed to each other. ing. Accordingly, the lock members 28 and 28 can be rotated in conjunction with each other.

  A method for suspending the suspension door 2 when the lock members 28 are used will be described with reference to FIG. As shown in FIG. 5A, the runner attachment 8 portion holding the locking members 28 in the expanded position is moved in the horizontal direction toward the connecting shaft 7. Then, the large-diameter portion 7b and the shaft portion 7a of the connecting shaft 7 come into contact with the large arc portion 21d and the small arc portion 21c of the lock member 28, respectively, and the lock member 28 starts to rotate about the communication shaft 24 as a rotation center. At this time, even if the connecting shaft 7 comes into contact with only one lock member 28, the pair of left and right lock members 28, 28 rotate at the same rotation angle because the gear portions 28 a, 28 a mesh with each other. To move. Thereafter, the projecting shafts 30, 30 provided on the lock members 28, 28 are securely accommodated and held in the accommodation holding portion 31b so as to be immovable ((B) in the figure).

The folding door 2 supported by the hoisting device 1 is shown, (A) is a front view, and (B) is a BB sectional view thereof. 3 is a perspective view showing an assembled state of the runner body 6 and a connecting shaft 7. FIG. It is a principal part expanded sectional view of the runner main body 6 part. FIG. 6 is an exploded view of the runner fixture 8. 3 is a cross-sectional view showing an assembled state of the runner attachment 8. FIG. The storage case 20 is shown, (A) is a front view, (B) is a top view, and (C) is a side view. The lock member 21 is shown, (A) is a front view, (B) is a top view, and (C) is a side view. The engagement block 22 is shown, (A) is a plan view, (B) is a front view, (C) is a side view, and (D) is a view taken along line DD in (A). It is a longitudinal cross-sectional perspective view of the runner attachment tool 8 which shows the construction point of the hanging method of the hanging door 2. FIG. It is a cross-sectional top view which shows the construction point of the suspension method of the suspension door 2. FIG. It is a cross-sectional top view which shows the construction point of the removal method of the suspension door 2. FIG. It is a perspective view of the lock member 28 which concerns on a 2nd form example. The lock member 28 which concerns on a 2nd form example is shown, (A) is a front view, (B) is a bottom view, (C) is a side view. It is a cross-sectional top view of the runner fixture 8 which shows the construction point of the hanging method of the hanging door 2 which concerns on a 2nd form example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Suspension device, 2 ... Folding door, 3 ... Upper guide rail, 4 ... Lower guide rail, 5 ... Lower side traveling body, 6 ... Runner main body, 7 ... Connection shaft, 8 ... Runner attachment tool, 20 ... Housing case, DESCRIPTION OF SYMBOLS 21 ... Lock member, 22 ... Engagement block, 23 ... Spring member, 24 ... Communication shaft, 27 ... Groove part, 30 ... Projection shaft, 31 ... Concave part, 31a ... Inclined side part, 31b ... Accommodating holding part, 31c ... Release Part

Claims (3)

The runner main body that is allowed to travel along the traveling rail, a connecting shaft that protrudes downward from the runner main body, and a runner attachment that is fixed to the upper part of the suspension door and connected to the connecting shaft. A hanging device for hanging a door, the shaft of which is detachable from the runner fixture,
The connecting shaft includes a large diameter portion having a relatively large diameter,
The runner fittings are arranged to face each other on the left and right sides, and are supported so as to be rotatable about a vertical axis. And a connecting shaft attaching / detaching mechanism including a lock member that cannot be clamped, and an engaging block that engages with the lock member and allows the connecting shaft to be held and released. A hanging device for hanging doors. The lower end of the lock member is provided with a protruding shaft that protrudes downward, and the engagement block is disposed on the lower surface side of the lock member and is biased and held outward by the spring member. And, the upper surface is provided with a concave portion that engages the protruding shaft,
In the plan view, the concave portion slides with the projecting shaft due to the rotation of the lock member accompanying insertion of the connecting shaft from the horizontal direction on both the left and right sides, and resists the engagement block against the spring biasing force. An inclined side portion to be immersed in the runner fitting is formed, and the engagement block is moved by a spring biasing force when the projecting shaft passes over the inclined side portion at an intermediate portion of the inclined side portion. Then, by holding and holding the protruding shaft so as not to move, a holding portion for the protruding shaft that holds the connecting shaft in a state in which the connecting shaft cannot be removed is formed, and the engagement is provided at the position of the opposing surface of the holding and holding portion. 2. A chevron-shaped release portion is formed that is sandwiched between the projecting shafts by a block immersing operation and opens the space between the projecting shafts to release the holding state of the connecting shaft. Suspension device for hanging doors.   The suspension device for hanging a door according to claim 1, wherein each lock member is formed with a gear portion that meshes with each other.

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