JP2981473B1 - Top hanging door roller with vertical adjustment mechanism - Google Patents

Abstract

A sliding door with an up-down adjustment mechanism is provided, which can substantially easily install a sliding door and can easily perform maintenance such as replacement of parts. A second mounting frame (5) included in a holding unit (U) holding a wheel is slid from a side into a space (9) of a first mounting frame (3) fixed to an upper surface of an upper frame of a sliding door. I do.
Next, the covers 6, 6 are fitted on both sides of the space 9, and the hooks 15 of each cover 6 are attached to the front plate 11 of the first mounting frame 3.
And it automatically engages with the through hole 16 for engagement of the rear plate 12. The second mounting frame 5 is stopped by the two covers 6 and 6 in a state where the second mounting frame 5 is positioned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door with an up-down adjusting mechanism which is mounted on a sliding door such as an automatic door.

[0002]

2. Description of the Related Art When assembling a sliding door of a hanging type, a channel in which the wheel is opened downward with the sliding door lifted up in a vertical position after a door wheel holding wheels is mounted on an upper frame of the sliding door in advance. Was to slide into the rails. However, to slide the wheels into the rails,
While maintaining the lifted heavy sliding door at a certain height, the wheels must be moved in the left and right direction integrally with this sliding door,
This task was very difficult.

Therefore, the mounting frame of the door roller is divided into an outer frame attached to the frame and an inner frame unit holding the wheels, and the outer frame is previously mounted on the frame of the sliding door, while the wheel is previously mounted on the upper rail. Is inserted to suspend the inner frame unit from the upper rail. In this case, the sliding door can only be lifted to a predetermined height, and the inner frame suspended from the upper rail can be moved and mounted inside the outer frame.
The work becomes relatively easy.

[0004]

However, after the separated outer frame and inner frame unit are combined, a new operation for fixing the both with fixing screws or the like is required, which results in an increase in the number of work steps. Substantial reduction in construction work may not be achieved. In addition, when performing maintenance such as replacement of parts, it is necessary to loosen a fixing screw for fixing the outer frame and the inner frame, and the maintenance is troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an upper hanging door car with a vertical adjustment mechanism which can substantially easily install a sliding door and can easily perform maintenance such as replacement of parts. It is.

[0006]

As a means for solving the above-mentioned problems, a preferred embodiment of the present invention is that the sliding door is fixed to the upper surface of an upper frame and opened to the side in the sliding direction of the sliding door. A first mounting frame having a space; and a holding unit for holding the wheel, the holding unit being connected to a wheel base for rotatably supporting the wheel via a connecting shaft. A second mounting frame, which is slid into the space of the first mounting frame from the side and fitted to the first mounting frame, and a vertical position of the wheel with respect to the second mounting frame. And a cover made of a resin that covers an open portion on the side of the cavity of the first mounting frame and prevents the second mounting frame from falling out of the cavity, Each cover is fitted into the empty space and attached to the front and rear surfaces of the first mounting frame. Each pair of engaging through-holes formed are those characterized by comprising a groove profile having a pair of hook portions which resiliently engage.

In this embodiment, the first mounting frame is fixed to the upper surface of the upper frame of the sliding door in advance with screws or the like, and the wheels of the holding unit are fitted in the rail grooves in advance to connect the second mounting frame to the rail grooves. Hang it from. Then, the second mounting frame is moved to the first
After the slide is inserted into the empty space of the mounting frame body, each cover is fitted into the empty space to prevent the second mounting frame body from coming off. By simply slidingly inserting the pair of hooks of the cover made of the channel material into the cavity while elastically deforming the hooks, the hooks are automatically engaged with the engagement through holes of the first mounting frame from inside the cavity and locked. Can be performed.

On the other hand, when removing the cover for maintenance or the like, it is possible to easily disengage the hook and remove the cover by pushing the tip of a driver or the like into the engagement through hole from the outside and pushing the hook. it can. In a more preferred aspect of the present invention, the vertical adjustment mechanism includes a screw provided near the lower end of the connection shaft, a nut coupled to the screw and held by the second mounting frame so as not to rotate. A first gear rotatably supported at an intermediate portion of the connecting shaft so as to be integrally rotatable and slidable in the axial direction; and a second gear meshing with the first gear and rotatably supported by the second mounting frame. A gear and a rotation operating portion formed on an end surface of a support shaft of the second gear and configured to rotate the second gear are provided.

In this aspect, when the rotary operation portion is rotated, the connection shaft is rotated via the second gear and the first gear, and accordingly, the screw provided on the connection shaft and the second mounting frame are rotated. The screwing position with the nut held by the body goes up and down. Thus, the vertical position of the second mounting frame with respect to the wheel is adjusted. There is an advantage that adjustment can be performed with a simple mechanism using a pair of gears and screws.

[0010] In a more preferred aspect of the present invention, the second mounting frame is positioned by both covers in the direction of insertion into and removal from the space. The rotary operation unit can be operated from the outside through an opening formed in the rear surface. In this aspect, the rotary operation unit can be easily operated from the outside in a state where the second mounting frame is positioned by the retaining cover.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partially broken perspective view showing a state in which a sliding door is built using a door roller according to an embodiment of the present invention, and FIG. 2 is a schematic perspective view showing a building process. FIG. 3 is an exploded perspective view of the main door wheel.

First, referring to FIG. 1 and FIG.
Is a first attached to the upper surface 2b of the upper frame 2a of the sliding door 2.
, A holding unit U that holds the wheels 4 and is combined with or separated from the first mounting frame 3, and a second mounting frame 5 included in the holding unit U is first mounted. A pair of covers 6 and 6 for retaining the frame 3 are provided as main elements.

In this embodiment, the first mounting frame 3 is
While the screw 4 is fixed to the upper surface 2b of the upper frame 2a of the sliding door 2 in advance, the wheel 4 of the holding unit U is fitted in the rail groove 8 (rail groove is not shown in FIG. 2; see FIG. 1) in advance. Then, the second mounting frame 5 is suspended from the rail groove 8. Then, after the second mounting frame 5 is slid and inserted into the space 9 in the first mounting frame 3, each cover 6, 6 is removed.
To prevent the second attachment frame 3 from coming off.

Next, referring to FIG. 3 and FIG. 4, which shows a cross section of the door roller in the mounted state, the first mounting frame 3 is attached to the bottom plate 10.
And the front plate 1 rising from the bottom plate 10 and facing each other.
1 and a rear plate 12, and the whole is formed in a groove shape. The upper ends of the front plate 11 and the rear plate 12 have inwardly bent flanges 13, 13. The above-mentioned space 9 is defined by the bottom plate 10 and the front plate 11 and the rear plate 12 with the flange 13, and from the side of the first mounting frame 3 (the sliding direction X of the sliding door 2) to the space 9. The second mounting frame 5 can be slid and inserted. The upper end of the second mounting frame 5 inserted into the space 9 is
The load of the sliding door 2 is supported by engaging with the sliding doors 3 and 13.

On the other hand, each cover 6 is formed of a channel having a main body 14 and a pair of hooks 15 facing outward. The front plate 11 and the rear plate 12 of the first mounting frame 3 are provided with a pair of engaging through holes for engaging the hook portions 15, 15 on the same side of the covers 6, 6 fitted in the space 9. A hole 16 is formed. Each through-hole 16 is vertically long, and the middle part in the up-down direction is formed wide. This is because the tip of the driver or the like is introduced into the wide portion and the hook 15 is pushed inward to release the engagement of the hook 15.

By simply sliding and inserting the pair of hook portions 15, 15 of the cover 6 made of the channel material into the cavity 9 while elastically deforming the same, the hooks 15, 15 are placed inside the cavity 9 as shown in FIG. From the through holes 16 for engagement of the first mounting frame 3,
16 to automatically lock the second mounting frame 5 to the first mounting frame 3. Further, in this state, the second mounting frame 5 is positioned in the insertion / removal direction with respect to the first mounting frame 3 by the hook portions 15 of the both covers 6, and the rotation operation unit 32 described below is moved to the first mounting frame 3. To the position of the opening 17 of the mounting frame 3. Thus, the rotary operation unit 32 can be easily operated from outside by a driver or the like.

An opening 17 is formed in the center of the front plate 11 to allow a rotation operation section of a vertical adjustment mechanism to be described later. Next, the holding unit U includes a wheel base 19 that rotatably supports the pair of wheels 4 via the support shaft 18.
And the second mounting frame 5 connected to the wheel base 19 via the connecting shaft 20, and a vertical adjustment mechanism 21 for adjusting the vertical position of the wheel 4 with respect to the second mounting frame 5. It is provided as a main part.

The wheel base 19 has a semi-cylindrical umbrella 2 for preventing unnecessary contact of the wheels 4 in the rail grooves 8.
2 are provided. Further, a pair of side plates 23, 23 which are screwed with the wheel base 19 sandwiched from both sides are provided, and the pair of side plates 23, 23 are used to connect the connecting shaft 2.
The upper end 24 of the zero is held so as to be able to idle while the movement in the axial direction is restricted.

At an intermediate portion of the connecting shaft 20 in the axial direction, at least one protruding ridge 25 projecting in the radial direction and extending in the axial direction is formed.
The screw 26 is formed in the region up to. The vertical adjustment mechanism 21 includes the screw 26 and the screw 26
A nut member 27 that is connected to the second mounting frame 5 and is non-rotatably held; a first gear 28 that is integrally rotatably connected to an intermediate portion of the connection shaft 20 in the axial direction; A second gear 29 which meshes with the second gear 29 and is rotatably supported by the second mounting frame 5, and a support shaft 3 of the second gear 29.
And a rotation operation unit 32 formed on the end surface 31 of the first gear 0 for rotating the second gear 29. First and second
The rotation axes of the gears 28 and 29 are orthogonal to each other.

The support shaft 33 formed integrally with the first gear 28 has an insertion hole 34 through which the connection shaft 20 is inserted. The insertion hole 34 is formed with a groove extending in the axial direction for fitting with the ridge 25 of the connecting shaft 20. The fitting of the groove with the ridge 25 allows the connecting shaft 20 and the first gear 2 to be fitted.
8 are freely rotatable integrally and relatively slidable in the axial direction.

The second mounting frame 5 has a rectangular parallelepiped shape close to a cube, and has an accommodation hole 35 penetrating vertically. The first and second gears 2 are inserted into the accommodation holes 35.
8, 29 are accommodated. Further, the screw 26 of the connecting shaft 20 that penetrates the first gear 28 from above and the nut member 27 that is inserted into the receiving hole 35 from below are connected to each other. The first gear 28 is provided on the upper surface of the second mounting frame 5.
A receiving surface 36 is provided. On the other hand, a seat surface 38 (see FIG. 4) for receiving a seat plate 37 formed integrally with the nut member 27 is formed on the lower surface of the second mounting frame 5.

On the front surface of the second mounting frame 5, a second
A support hole 39 for supporting the support shaft 30 of the gear 29 is formed. The support hole 39 communicates with the accommodation hole 35 and opens above the second mounting frame 5. The first gear 28 received by the receiving surface 36 is the second gear 2
By pressing the support 9, the support shaft 30 of the second gear 29 is positioned at the lower end of the support hole 39.

Reference numerals 40, 40 denote a pair of mounting members for mounting the first gear 28 and the seat plate 37 of the nut member 27 to the second mounting frame 5. Each of the mounting members 40 is formed of a channel, and covers the part of the upper surface of the first gear 28 to position the first gear 28 on the receiving surface 36.
1 and a second flange 42 that covers a part of the lower surface of the seat plate 37 of the nut member 27 and positions the seat plate 37 on the seat surface 38.
And a web 43 connecting the flanges 41 and 42 to each other.
And Each mounting member 40 is fixed to each side surface of the second mounting frame 5 by a screw 44 which is screwed through an insertion hole formed in the web 43.

The second mounting frame 5 is made of resin.
Abutting portion 45 elastically abutting on the tooth tip of the first gear 28;
have. Therefore, a predetermined rotational resistance is given to the first gear 28 from the contact portion 45, and the position adjusted by the vertical adjustment mechanism 21 is maintained. According to the present embodiment, after the second mounting frame 5 is slid and inserted into the space 9 of the first mounting frame 3, each cover 6 is simply fitted into the space 9, and the hook of the cover 6 is formed. Since the portion 15 is automatically locked, the second mounting frame 5 can be easily mounted.

When the rotary operation section 32 is rotated by a driver from the front side of the sliding door 2, the connection shaft 20 is rotated via the second gear 29 and the first gear 28, and the connection shaft 20 The screwing position between the provided screw 26 and the nut member 27 held by the second mounting frame is moved up and down. Thereby, the vertical position of the second mounting frame 5 with respect to the wheels 4 is adjusted. A pair of gears 28 and 29 and a screw 26
There is an advantage that adjustment can be performed with a simple mechanism using.

Further, in a state where the second mounting frame 5 is positioned on the first mounting frame 3 with the pair of covers 6 and 6 for retaining the rotation, the rotation operation section 32 is mounted on the first mounting frame 3. Opening 17
Therefore, the rotation operation unit 32 can be easily operated from outside by a driver or the like. Note that the present invention is not limited to the above embodiment, and various changes can be made within the scope of the present invention.

[0027]

According to the first aspect of the present invention, the second mounting frame is locked to the first mounting frame simply by fitting the cover having the hook portion, and the assembly is completed. Construction can be performed substantially easily. Further, since the cover can be easily removed by pushing the hook from the outside, maintenance such as replacement of parts can be easily performed.

According to the second aspect of the present invention, vertical adjustment can be performed by a simple mechanism using a pair of gears and screws. According to the third aspect of the present invention, the rotary operation section can be easily operated from the outside in a state where the second mounting frame is positioned by the retaining cover.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing a state in which a sliding door is built using a door roller according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing a process of installing a sliding door.

FIG. 3 is an exploded perspective view of the door roller.

FIG. 4 is a longitudinal sectional view showing a state where a sliding door to which a door roller is mounted is erected.

FIG. 5 is a sectional view taken along line VV in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door car 2 Sliding door 2a Upper frame 2b Upper surface 3 First mounting frame 4 Wheel 5 Second mounting frame 6 Cover 9 Void 14 Main part 15 Hook 16 Engagement through hole 17 Opening 19 Wheel base 20 Connecting shaft DESCRIPTION OF SYMBOLS 21 Vertical adjustment mechanism 24 Upper end 26 Screw 27 Nut member 28 1st gear 29 2nd gear 30 Support shaft 31 End surface 32 Rotation operation part

Claims (3)

(57) [Claims] A first space fixed to an upper surface of an upper frame of a sliding door and having a space opened to a side in a sliding direction of the sliding door;
And a holding unit that holds the wheels. The holding unit is connected to a wheel base that rotatably supports the wheels, the wheel base is connected to the wheel base via a connecting shaft, and the first
A second mounting frame which is slidably inserted into the space of the mounting frame from the side and is fitted to the first mounting frame, and an up and down position for adjusting a vertical position of wheels with respect to the second mounting frame. An adjustment mechanism, and a cover made of resin that covers an open portion on a side of the space of the first mounting frame and prevents the second mounting frame from falling out of the space, It is characterized in that it is formed of a channel having a pair of hooks which are fitted into the cavities and respectively elastically engage with a pair of engagement through holes formed on the front and rear surfaces of the first mounting frame. Hanging door roller with a vertical adjustment mechanism. 2. An up-and-down adjusting mechanism comprising: a screw provided near a lower end of a connecting shaft; a nut connected to the screw and held by a second mounting frame so as not to rotate; and an intermediate portion of the connecting shaft. A first gear rotatably supported integrally with the first gear, a second gear meshing with the first gear, and rotatably supported by the second mounting frame; 2
And a rotation operating portion formed on an end surface of a support shaft of the gear for rotating the second gear. 3. The second mounting frame is positioned by the two covers in the insertion / removal direction to the cavity, and in this state, the second mounting frame is externally inserted through an opening formed in the front or rear surface of the first mounting frame. 3. The upper hanging door pulley with a vertical adjustment mechanism according to claim 2, wherein the rotary operation section can be operated from the side.