JP6710541B2 - Sliding door upper guide device - Google Patents

Description

The present invention relates to an upper guide device that guides an upper part of a sliding door that opens and closes an opening of a structure along an upper rail attached to the structure at an upper edge of the opening.

Conventionally, with regard to sliding doors that open and close the openings of structures, an upper hanging sliding door (suspending sliding door) that suspends the sliding door on the upper rail of the door frame, and a bottom-supporting sliding door that runs on the lower rail of the lower door frame There is (non-hanging sliding door). Of these sliding doors, not only top-hanging sliding doors but also lower-supporting sliding doors may be provided with an upper runner device that guides the sliding door upper portion to the upper rail of the door frame upper portion (for example, Patent Document 1 and Patent Document 2). reference).

JP, 10-311176, A JP, 2006-194026, A

Among these sliding doors, the upper runner device of the top-hanging sliding door is provided with a height adjusting mechanism for adjusting the hanging height in order to adjust the tilt of the sliding door and avoid over tightening. (For example, see Patent Document 1). This height adjustment mechanism is equipped with a relatively large number of parts, and there is play between these various parts, albeit little by little, and when these play are combined, the rattling in the vertical direction becomes large. There is. These rattles are desired to be suppressed because they cause the sliding door to flip up, specifically, cause noise and the like, but it is also necessary to ensure the operation of the height adjusting mechanism.

On the other hand, some bottom-supporting sliding doors have an adjuster function that allows the sliding door to travel smoothly even if the mounting height of the upper rail is uneven in the opening/closing direction of the sliding door (for example, Patent Document 2). reference). Specifically, the upper runner member includes a case portion attached to the upper frame portion of the sliding door, and an adjuster portion accommodated in the case portion in a state of protruding upward, and the adjuster portion is arranged above and below the case portion. It is housed in a case that can move up and down in the vertical direction, and traveling wheels are attached to the top of the case, so that the adjuster part moves up and down with respect to the case even when there is uneven mounting height of the upper rail when opening and closing the sliding door. By doing so, this unevenness is absorbed (hereinafter, the function of absorbing the unevenness due to the mounting height of the upper rail is simply referred to as "adjuster function").

However, although the upper runner device with an adjuster function is also configured to be able to absorb the unevenness of the mounting height of the upper rail by the adjuster portion that moves up and down in the vertical direction with respect to the case portion, as described above, When an impact force is applied to the sliding door, in addition to various play, this adjuster function may promote the phenomenon that the sliding door jumps upward, which not only causes noise. However, there is a need to suppress jumping up while ensuring the adjuster function because it may lead to wheeling of the lower door car.

The present invention has been made in view of the above-mentioned conventional problems, and suppresses the flip-up of the sliding door while ensuring various functions of the upper runner device relating to height adjustment such as height adjustment function and adjuster function. It is an object of the present invention to provide an upper runner device for a sliding door that can be used.

In order to solve the above problems, an upper guide device for a sliding door according to the present invention is provided with a sliding door fixing body fixed to an upper portion of a sliding door that opens and closes an opening of a structure, and attached so as to be vertically movable with respect to the sliding door fixing body. An upper guide device for a sliding door having a runner body for guiding the sliding door along an upper rail provided on the structure, wherein the sliding door is provided on either one of the sliding door fixing body and the runner body. An inclined hole that extends obliquely with respect to the edge and one of the sliding door fixing body and the runner body that are provided on the other side and have the same width as the width of the inclined hole, and relatively move along the inclined hole. And a guide portion for moving the sliding door fixing body and the runner body relative to each other by being guided by the sliding door fixing body and the runner body. It is characterized by being present. Here, with respect to the guide portion, "having the same width as the width of the inclined hole" means that the guide portion has substantially the same width as the inclined hole. Is a concept that also includes. In this case, the guide portion can be smoothly moved along the inclined hole by setting it slightly smaller than the width of the inclined hole.

According to this invention, an inclined hole provided in one of the sliding door fixing body and the runner body and extending obliquely with respect to the upper edge of the sliding door, and provided in the other of the sliding door fixing body and the runner body. Since the guide portion is configured to have the same width as the width of the inclined hole, and is relatively guided along the inclined hole, the sliding door fixing body and the runner body are relatively moved up and down. When slowly sliding the sliding door fixing body and the runner body in the height direction, such as the height adjusting function and the adjuster function, by relatively moving the guide portion along the inclined hole, The sliding door fixing body and the runner body can be moved relative to each other in the vertical direction, and thus various functions of the upper runner device relating to the adjustment in the height direction can be ensured.

On the other hand, in this upper guide device for the sliding door, the guide portion is configured to have the same width as the width of the inclined hole, and the inclined hole is inclined in the range of 5 to 25 degrees with respect to the upper edge of the sliding door. Therefore, against impact force such as flipping up of a sliding door, friction resistance between the inner peripheral surface of the inclined hole and the outer peripheral surface of the guide portion causes relative displacement between the inclined hole and the guide portion. Or the relative displacement between the two is suppressed, and the reaction force against the impact force acts at or near the place, so that the sliding door fixed body and the runner body do not move up and down relatively, and the sliding door Can be effectively suppressed.

The specific configuration of the runner body is not particularly limited, and may include a main body portion and a guide sliding portion such as a guide block that is attached to the main body portion and slides along the upper rail. It is preferable that the runner body includes a main body portion and a guide roller attached to the main body portion and traveling along the upper rail. In this case, regarding the height relationship between the main body portion and the top portions of the guide rollers. The top of the guide roller is preferably set higher than the top of the main body.

With this configuration, when moving the relative vertical positions of the sliding door fixing body and the runner body in the proximity direction, the sliding door is opened and closed, and the guide is guided to the inner surface of the top wall of the upper rail prior to the main body. The rollers can be brought into contact. By this contact, a downward force (contraction force) can be smoothly applied to the runner body. For this reason, after the sliding door fixing body and the runner body are relatively separated from each other in the height direction such as the height adjusting function and the adjuster function, the sliding door can be moved in the proximity direction by simply opening and closing the sliding door, Moreover, the operation of the guide roller allows the sliding door to be smoothly opened and closed.

In this case, the specific configuration of the main body of the runner body is not particularly limited, either, but the base body portion and the base body portion projecting upward from the top portion of the base body portion and the top portion of each of the guide rollers. It is preferable to include a jump-up suppressing projection portion which is located between and is made of a hard synthetic resin. Further, the specific configuration of the guide roller is not particularly limited, and the material thereof may be made of a known material such as metal or wood. It is preferable that the guide roller is made of an elastic body, and is elastically deformed when the sliding door is flipped up to come into contact with the inner surface of the top wall of the upper rail together with the jumping-up suppressing protrusion.

According to this structure, when the upward impact force is applied to the upper guide device as the sliding door is flipped up, the guide roller is elastically deformed and hits the inner surface of the top wall of the upper rail together with the jump-up suppressing protrusion. By making contact with each other, the flip-up of the sliding door can be suppressed more effectively.

Further, in the present invention, one of the sliding door fixing body and the runner body has a first inclined contact surface along the inclined hole, and the other one of the sliding door fixing body and the runner body, It is preferable to have a second inclined contact surface that abuts the first inclined contact surface. The second inclined contact surface does not have to be in constant contact with the first inclined contact surface at all times and may be in contact with at least some of them when the sliding door is flipped up.

According to this structure, when the sliding door fixing body and the runner body are displaced relatively slowly in the height direction, such as the height adjusting function and the adjuster function, the slanted hole (specifically, the peripheral portion) is In addition to the engagement with the guide portion, the relative up and down movement of the first and second inclined contact surfaces is guided by the contact thereof. Moreover, when an impact force acts upward, such as when the sliding door is flipped up, in addition to the engagement between the inclined hole (specifically, the peripheral edge portion) and the guide portion, these first and second inclined contact surfaces Are abutted against each other and are in surface contact with each other, displacement in the left-right direction is suppressed, and a reaction force against the impact force can be applied at or near that position, and the relative vertical movement between the sliding door fixing body and the runner body The movement can be suppressed more effectively, and the flip-up of the sliding door can be suppressed more effectively.

According to the upper guide device for the sliding door of the present invention, when the sliding door fixing body and the runner body are relatively displaced in the height direction, the guide portion is relatively moved along the inclined hole. As a result, various functions of the upper runner device relating to height adjustment can be ensured, while the tilt hole and the guide portion are relatively displaced against impact force such as flipping up of a sliding door. Since the reaction force against the impact force acts on or near the place, the sliding door fixing body and the runner body do not move up and down relatively, and the sliding door is effectively flipped up. Can be suppressed to.

It is a perspective view showing the outline of the sliding door to which the upper guide device concerning one embodiment of the present invention is applied. It is a perspective view which expands and shows an upper guide device. It is a front view of an upper guide device. It is a top view of an upper guide device. It is a side view of an upper guide device. It is a front view which shows a sliding door fixed body. It is a top view which shows a sliding door fixed body. It is a front view showing a runner body. It is a bottom view showing a runner body. It is explanatory drawing which shows typically the relationship between a guide roller and a jumping-up suppression protrusion part. It is explanatory drawing explaining operation|movement of an upper guide apparatus. It is the perspective view which showed the outline of the sliding door to which the upper guide apparatus which concerns on other embodiment is applied.

An embodiment according to the present invention will be described below with reference to the drawings. The upper guide device for a sliding door according to the present embodiment is applied to a non-suspending type (lower support type) sliding door with a lower door wheel whose upper end is guided by a guide rail. It can also be applied to other sliding doors such as a sliding sliding door and a hanging sliding door. Further, although this upper guide device will be described for a sliding door that is not provided with a slide assist device, it is also applicable to a sliding door that is provided with a slide assist device on both sides or one of either side. The present invention can also be applied to a sliding door provided with another device such as a sliding door cushioning device that applies a braking force to the sliding door at the end of sliding of the sliding door in order to reduce the collision of the frame.

FIG. 1 is a perspective view showing an outline of a sliding door structure to which the upper guide device of the present embodiment is applied. Note that, for convenience, the +X direction in each drawing will be described as the right direction, the +Y direction as the rear direction, and the +Z direction as the upward direction in each drawing, but the expression of these directions is not particularly limited, and the present embodiment is simply used. It represents a relative positional relationship in.

First, a sliding door structure to which the upper guide device 1 of the present embodiment is attached will be briefly described. The sliding door structure includes a sliding door D that opens and closes the opening W of the structure, and a door frame F that is fixed to the peripheral edge of the opening W of the structure and in which the sliding door D slides inside. The sliding door D includes a door body D1, a pair of left and right lower door wheels D2 attached to a lower portion of the door body D1, and a pair of left and right upper guide devices 1 attached to an upper portion of the door body D1. A height adjusting mechanism (not shown) is provided in the lower door car, and even if a gap is formed between the door frame and the door frame (especially the inner surface of the side) due to aging, the door main body D1 is tilted and left unclosed. It is supposed to be resolved.

On the other hand, the door frame F (included in the structure) includes a Kamoi F1, a sill F2, an upper rail L1 provided on the lower surface of the Kamoi F1 for guiding the sliding direction of the sliding door D, and a sliding door D provided on the sill F2. The lower door car D2 is guided, and the lower rail L2 is included, and the sliding door D is opened and closed along these upper and lower rails L1 and L2. That is, the upper part of the sliding door D is guided by inserting the upper guide device 1 arranged on the upper part thereof into the upper rail L1, and the lower part of the lower door car D2 travels on the lower rail L2. The lower part is guided.

The upper rail L1 of the present embodiment has a C-shape that opens downward, that is, a top wall portion L11 that extends in the left-right direction, front and rear side wall portions L12 that extend downward from both front and rear end edges of the top wall portion L11, and these. The front and rear flanges L13 extend inward in the width direction from the lower ends of the front and rear side wall parts L12, and the front ends of the front and rear flanges L13 are spaced apart from each other so that they are open downward. A guide roller 32, which will be described later, rolls on the front and rear flange portions L13.

Although the upper rail L1 is fixed to the lower surface of the Kamoi F1 of the door frame F, it may be embedded in the Kamoi F1 or the upper part of the peripheral portion of the opening W of the structure. It may be fixed directly to the edge or similar.

The upper guide device 1 of the present embodiment is fixed to the upper part of the door body D1 of the sliding door D, specifically, to the left and right ends of the upper end. In the present embodiment, the upper guide devices 1 are arranged in the same direction in the left-right direction, but the direction is not particularly limited, and the upper guide devices 1 are arranged line-symmetrically with respect to the vertical line. May be Since each of the left and right upper guide devices 1 has the same configuration, one of the upper guide devices 1 will be mainly described below.

FIG. 2 is an enlarged perspective view of the upper guide device. 3 to 5 are a front view, a plan view, and a side view of the upper guide device, respectively. 6 and 7 are a front view and a plan view showing the sliding door fixing body. 8 and 9 are a front view and a bottom view showing the runner body.

The upper guide device 1 includes a sliding door fixing body 2 fixed to an upper portion of a door body D1, and a runner body that is vertically movable with respect to the sliding door fixing body 2 and guides the sliding door D along an upper rail L1. 3 and 3. The upper guide device 1 is configured such that the sliding door fixing body 2 and the runner body 3 can be relatively slowly displaced in the vertical height direction when a force having a vertical component acts slowly. When a force having a vertical component is abruptly applied, the two and the two are not relatively displaced or hardly displaced.

Specifically, the sliding door fixing body 2 includes a base block 21 embedded in the top of the sliding door D, a connecting block 22 projecting upward from the base block 21, and the other end of the connecting block 22 (specifically, The columnar block 23 provided at the left end portion in FIG. 6 is provided, and these are divided and configured from a plurality of parts. Although not described in detail, the sliding door fixing body 2 can finely adjust the front-rear position of the connecting block 22 with respect to the base block 21 by rotating the front-rear adjusting screw 25 (see FIGS. 1 and 2) left and right. Is configured. The sliding door fixing body 2 is for fixing the runner body 3 to the door body D1, and is configured to connect the runner body 3 so as to be vertically movable (elevating) via a connecting block 22.

The base block 21 is a block-shaped body having an accommodation chamber 21a (see FIG. 6) that opens upward and accommodates the lower end portion of the connection block 22, and the block-shaped body is provided on both left and right sides of the upper end portion of the door body D1. The block is fixed to the door body D1 by a screw (not shown) that penetrates the block in the left-right direction in a state where the block is housed in a housing groove (not shown) provided at an edge portion and opened to the upper side and the side.

The connection block 22 is a block body that connects the base block 21 and the runner body 3. More specifically, the connection block 22 is disposed at a trapezoidal plate-shaped connection body 221 and one lower end portion (right end portion in the illustrated example) of the connection body 221, and is connected to the front and rear sides of the connection body 221. A pair of front and rear auxiliary guides 222 projecting to the front and back, and an insertion piece (not shown) continuously provided at the lower left end of the connection body 221 is housed in the housing chamber 21a of the base block 21 in the front and rear horizontal axis. It is pivotally supported on the base block 21 by 26.

The connecting main body 221 is dimensioned to the left and right longer than the base block 21, and as shown in FIG. 6, the connecting main body 221 is arranged so as to project from the left end of the base block 21 to the right more than the right end of the base block 21. There is. The connecting main body 221 has an inclined guide hole 223 (corresponding to an inclined hole) that inclines vertically from the left end portion to the right end portion in the front view, that is, in the present embodiment, the upper edge of the door main body D1, that is, the horizontal direction. It penetrates in the plate thickness direction (front-back direction). The inclination angle of the inclination guide hole 223 with respect to the upper edge of the door body D1 (which coincides with the horizontal direction in this embodiment) is specifically set within the range of 5° to 25°. That is, when the angle of inclination is smaller than 5°, even if a force having a vertical component is slowly applied to one of the sliding door fixing body 2 and the runner body 3, the sliding door fixing body 2 and the runner body 3 are separated from each other. Becomes relatively difficult to displace. Further, when the inclination angle is larger than 25°, even if a force having a vertical component is suddenly applied to either the sliding door fixing body 2 or the runner body 3, the sliding door fixing body 2 and the runner body 3 are Are relatively easily displaced, and the original function of the upper guide device, which is difficult to displace with respect to impact force, is deteriorated. In the present embodiment, the inclined guide hole 223 is set to form an angle of 15° with respect to the upper edge of the sliding door (horizontal horizontal direction).

The inclined guide hole 223 has an elongated oval shape and is set to have a width (direction orthogonal to the center line) that matches the outer diameter of the guide boss portion 37 described later. Further, the inner peripheral surface of the inclined guide hole 223 is formed of a surface parallel to the axis in the front-rear direction, and a predetermined frictional force is generated between the inner peripheral surface and the guide boss portion 37. Further, the height dimension of the inclined guide hole 223 in the vertical direction is set to a range that can absorb the assumed nonuniformity of the mounting height of the upper rail L1, or more specifically, in the range of 3 mm to 15 mm. It is set.

The upper surface of the connecting body 221 has a non-contact surface 221a having a normal line in the vertical direction and an upper inclined guide surface 221b (corresponding to the first contact surface) having an inclination that matches the inclination angle of the inclined guide hole 223. ) And an upper impact guide surface 221b is brought into contact with an inner inclined surface 38a of a movement permitting groove 38 of the runner body 3 which will be described later when an upward impact force is applied to the sliding door fixing body 2. The frictional force is generated along with this contact.

The connecting body 221 of the present embodiment includes a planar non-contact surface 221a having a normal line in the vertical direction, but the non-contact surface 221a is not limited to a flat surface, and the runner body is not limited thereto. 3 may have a known surface shape such as a curved surface, a spherical surface, or a wave surface, or may be omitted as appropriate so that the upper surface of the connecting body 221 is composed of only the upper inclined guide surface. good.

As described above, the auxiliary guide portion 222 is provided at the lower right end portion of the connection body 221 so as to project forward and backward. The auxiliary guide portion 222 has a substantially right-angled triangular shape when viewed from the front, and is in a state where the lower end edge and the one side edge (the right side edge in the illustrated example) match the lower end edge and the one side edge of the connecting body 221 respectively. It is formed integrally with the connection body 221. The upper surface of the auxiliary guide portion 222 is configured as a lower inclined guide surface 222a having an inclination that matches the inclination angle of the inclined guide hole 223, similarly to the upper inclined guide surface 221b of the connection body 221. Similarly to the upper inclined guide surface 221b, the lower inclined guide surface 222a also has a lower inclined guide surface 222a of the runner body 3, which will be described later, when an upward impact force is applied to the sliding door fixing body 2. The side inclined guide surface 34b is brought into contact with the side inclined guide surface 34b, and a frictional force is generated due to the contact.

The width of the lower inclined guide surface 222a is greater than the thickness of the connecting body 221 from the viewpoint of generating an appropriate frictional force while ensuring the slidability between the sliding door fixing body 2 and the runner body 3. It is preferably set within the range of 0.3 times to 1.0 times, and more preferably within the range of 0.5 times to 0.7 times.

The columnar block 23 is for correcting the inclination by directly or indirectly contacting the door frame F when the sliding door D is inclined in the door frame F, and has a substantially columnar shape (in the present embodiment). Is a substantially prismatic body). In the present embodiment, the columnar block 23 is a cushion that covers the column main body 23a integrally formed with the connecting block 22 and at least the side portion (the left end portion in the illustrated example) of the column main body 23a on the side closer to the sliding door D. And a decorative material 23b. The cushioning decorative material 23b is made of a softer material than the pillar main body 23a and suppresses the generation of impact noise when the pillar block 23 contacts the door frame F.

Next, the runner body 3 will be described. 8 and 9 are a front view and a bottom view showing the runner body.

The runner body 3 travels left and right on the upper rail L1 to guide the sliding door D, and in the present embodiment, as shown in FIG. 8, has a trapezoidal shape in a front view. Specifically, the runner body 3 includes a runner main body 31 (corresponding to the main body) elongated in the left-right direction, and guide rollers 32 attached to the left and right ends of the runner main body 31 in pairs of front and rear. The main body 31 is attached to the sliding door fixing body 2 by being connected to the connecting block 22 of the sliding door fixing body 2 so as to be vertically movable.

The runner body 31 has a base body 34 having a movement permitting groove 38 extending in the left-right direction, and a pair of guide rollers 32 arranged at one end (right end in the example) of the base body 34. Roller mounting portion 35, a jump-up suppressing projection portion 36 that protrudes upward at a position near the other end of the base body portion 34 (close to the left end in the example), and a lower end of the other end of the base body portion 34 (the left end in the example). A guide boss portion 37 provided so as to cross the movement permitting groove 38 in the lower portion), and the base body portion 34, the roller mounting portion 35, and the jump-up suppressing protrusion portion 36 are made of hard synthetic resin (for example, polyamide resin, polyethylene resin). , A known synthetic resin such as propropylene resin).

When viewed from the front, the base body portion 34 has a substantially trapezoidal shape that is elongated in the left and right directions and has a lower bottom set shorter than an upper bottom. The base body portion 34 is provided with a movement permitting groove 38 that opens downward from one end edge in the left-right direction to the other end edge in the center portion in the thickness direction, and at one end portion (right end portion in the illustrated example) of the movement permitting groove 38. An upper opening 39 that communicates is provided, and the connection main body 221 of the sliding door fixing body 2 is slidably fitted in the movement allowing groove 38 and the upper opening 39.

The movement allowance groove 38 is set so that its depth is inclined upward as it goes to the right side, and its inclination angle is set so as to coincide with the inclination guide hole 223 of the connection body 221. Therefore, the inclination angle of the inclined inner side surface 38a of the movement permitting groove 38 (the inner bottom surface of the movement permitting groove 38) also matches the inclination guide hole 223. As described above, the inclined inner side surface 38a is configured to contact the upper inclined guide surface 221b of the connecting body 221 when at least an upward impact force is applied to the sliding door fixing body 2. Further, one end of the movement permitting groove 38 communicates with the upper opening 39 as described above, and the non-contact surface 221a of the connecting body 221 can be projected upward from the upper opening.

In addition, the lower surface of the base body portion 34 has a non-contact surface 34a having a normal line in the vertical direction, and a runner-side inclination that is continuous with the non-contact surface 34a and has an inclination that matches the inclination angle of the inclination guide hole 223. A guide surface 34b (corresponding to the second contact surface) is provided in front and rear of the movement allowance groove 38, and when the upward impact force acts on the sliding door fixing body 2, the runner side inclined guide surface 34b. Is brought into contact with the lower inclined guide surface 222a of the auxiliary guide portion 222. The non-contact surface 34a of the base body portion 34 can be appropriately omitted like the non-contact surface 221a of the coupling body 221, and the specific shape thereof is not particularly limited.

Furthermore, a boss hole (not shown) into which the guide boss portion 37 is fitted is provided at the lower end of the other end of the base body portion 34 (lower left end in the illustrated example), and this boss hole communicates with the movement permitting groove 38. Has been done. A shaft hole (not shown) into which the axles of the pair of guide rollers 32 are inserted is also provided above the boss hole in the base body portion 34.

The roller mounting portion 35 is arranged at one end portion (right end portion) of the base body portion 34, and also serves as a stopper for the coupling main body 221 that moves in the movement allowance groove 38 while the pair of guide rollers 32 on one side is attached. Fulfill The roller mounting portion 35 can be omitted as appropriate, and in this case, the pair of guide rollers 32 on one side is mounted on the base body portion 34.

On the other hand, the jump-up suppressing protrusions 36 are provided in a pair of front and rear in a state of protruding in the front-rear direction and protruding upward at the other end side of the upper end portion of the base body part 34 (closer to the left side in the example). .. Each of the jumping-up suppressing projections 36 is formed in a substantially rectangular parallelepiped shape, and as shown in FIG. 5, the top surface 36a is formed as a curved surface having a center line in the left-right direction. Of the top surface 36a, the highest position in the vertical direction is the top portion 36b. As shown in FIG. 10, the top portion 36b is set higher than the base body portion 34 and the roller mounting portion 35, and the guide roller 32 will be described later. It is set lower than the apex 32b by a minute difference h. That is, the tops 36b of the jumping-up suppressing protrusions 36 are located between the tops of the base body portion 34 and the roller mounting portion 35 and the tops 32b of the guide rollers 32. Specifically, the minute difference h (see FIG. 10) between the top 36b of the jump-up suppressing protrusion 36 and the top 32b of the guide roller 32 is within the range of 0.5% to 5% of the outer diameter of the guide roller 32. Therefore, it is preferable to set the height lower than the top 32b of the guide roller 32.

The top surface 36a is not limited to a curved surface and may have another shape such as a flat surface. However, when the top surface 36a is configured as a curved surface having a center line in the left-right direction as in this embodiment, the sliding door is inclined. Even when it jumps up in this state, damage to the jump-up suppressing projection 36 is suppressed.

The thickness (front-rear direction) and length (left-right direction) of the jump-up suppressing protrusion 36 are appropriately set in consideration of the thickness and outer diameter of the guide roller 32. The thickness of the jump-up suppressing protrusion 36 is preferably set within a range of 0.5 times to 2.0 times the thickness of the guide roller 32, and its length is 0.3 times the outer diameter of the guide roller 32. It is preferably set within the range of 2 times to 1.5 times.

The guide boss portion 37 (corresponding to the guide portion) is inserted into the inclined guide hole 223 to guide the vertical movement of the runner body 3 with respect to the sliding door fixing body 2, and is configured as a columnar body extending in the front-rear direction. There is. In particular, in the present embodiment, it is configured as a columnar body, and is attached in a caulked state to the base body portion 34 of the runner body 3, specifically, a boss hole provided at the lower left end of the base body portion 34. The guide boss portion 37 is formed in a cylindrical shape along the center line (front-rear direction), and the outer peripheral surface thereof uniformly contacts the inner peripheral surface of the inclined guide hole 223.

Further, the outer diameter of the guide boss portion 37 (corresponding to the width of the guide portion) is set to be equal to or slightly smaller than the width of the inclined guide hole 223 as described above, so that the vertical play is reduced. ing. Thereby, the flip-up of the sliding door D based on the play between the guide boss portion 37 and the inclined guide hole 223 can be suppressed as much as possible.

Note that the guide boss portion may be formed of a prismatic body or the like instead of the cylindrical shape as in the present embodiment. In this case, in the width direction orthogonal to the center line of the inclined guide hole 223. Is set to be the same as or slightly smaller than the width of the inclined guide hole 223.

On the other hand, the guide roller 32 basically rolls on the front and rear flange portions L13 of the upper rail L1 in accordance with the opening/closing operation of the sliding door D, and when the sliding door D is jumping up or with respect to the sliding door fixing body 2. When the runner body 3 rises, the runner body 3 can be brought into contact with the top wall portion L11 of the upper rail L1 and a downward force can be applied to the runner body 3. In addition, the guide roller 32 is configured to elastically deform when the sliding door D is flipped up and abut on the inner surface of the top wall portion L11 of the upper rail L1 together with the jumping-up suppressing projection portion 36, and when the sliding door D is opened and closed. When the runner body 3 rises with respect to the fixed body 2, the runner body 3 abuts and rolls on the inner surface of the top wall portion L11 of the upper rail L1 to suppress the running resistance of the sliding door D, and to the runner body 3. A downward force can be applied.

Specifically, the guide rollers 32 are provided on both left and right ends of the runner body 31, specifically, on the other end upper part of the base body part 34 (upper left end in the example) and one end side of the base body part 34. A pair of front and rear wheels are attached to each of the roller attachment portions 35 via the axles 32a. The outer diameter of the guide roller 32 is set within a range where it does not interfere with the jump-up suppressing protrusion 36, and at least the outermost ridge 32b having the highest height in the vertical height direction has the base body portion 34, the roller mounting portion 35, and the top 32b. It is set to be higher than the jump-up suppressing protrusion 36.

The guide roller 32 is made of an elastic body, for example, synthetic resin softer than the base body portion 34 (e.g., elastomer) and is elastically deformable. Specifically, the duro hardness of the guide roller 32 (hardness measured by an A-type durometer for rubber) is preferably set in the range of 30 to 90, and more preferably set in the range of 50 to 70. More preferable. The guide roller 32 may have a roller portion integrally formed of an elastic body, or may have a tire portion and a wheel portion divided. In this case, at least the tire portion is made of an elastic body.

Such a runner body 3 is assembled to the sliding door fixing body 2 as follows.

That is, with the inclination angle of the runner side inclined guide surface 34b of the runner body 3 and the inclination angle of the lower side inclined guide surface 222a of the sliding door fixing body 2 matched, the sliding door is fixed to the movement permitting groove 38 of the runner body 3. Insert the connecting body 221 of the body 2. Then, the inclined guide hole 223 of the connecting main body 221 is aligned with the boss hole (not shown) into which the guide boss portion 37 of the runner body 3 is inserted.

In this aligned state, the guide boss portion 37 is inserted into the boss hole (not shown) of the runner body 3, and the guide boss portion 37 is fixed by caulking from both front and rear sides of the guide boss portion 37.

As a result, the runner body 3 is attached to the sliding door fixing body 2. In this state, the runner-side inclined guide surface 34b of the runner body 3 and the inclined inner side surface 38a of the movement permitting groove 38 are in contact with or substantially contact with the lower inclined guide surface 222a and the upper inclined guide surface 221b of the sliding door fixing body 2, respectively. The sliding door fixing body 2 and the runner body 3 are in contact with each other when an external force acts in a direction in which the sliding door fixing body 2 and the runner body 3 approach each other. That is, in the present embodiment, the upper inclined guide surface 221b of the connection body 221 and the lower inclined guide surface 222a of the auxiliary guide portion 222 are the "first inclined contact surface" (second inclined contact surface) referred to in the present invention. In the runner body 3, the slanted inner side surface 38a and the runner-side slanted guide surface 34b that come into contact with these guide surfaces 221b and 221a are referred to as "second slanted guide surface" (first slanted contact surface) in the present invention. ) Corresponds to. In other words, in the upper guide device 1 of the present embodiment, when the sliding door fixing body 2 and the runner body 3 each have a plurality of inclined abutting surfaces, and when an impact force in the vertical direction acts on both, 2, 3 In addition, the inclined contact surfaces are brought into contact with each other so that a sufficient frictional force acts.

Then, by fixing the upper guide device 1 assembled in this way to the door body D1 of the sliding door D, the upper guide device 1 can be installed.

The operation of the upper guide device 1 configured as above will be described with reference to FIGS. 1, 10, and 11. FIG. 11 is a front view showing an upper guide device showing the upper rail in a sectional state. The chain double-dashed line in FIG. 10 shows the contour of the guide roller elastically deformed by contacting the top wall of the upper rail.

When the sliding door D shown in FIG. 1 is slid in the opening/closing direction, the lower door wheel D2 of the sliding door D runs on the lower rail L2, and the guide roller 32 of the upper guide device 1 of the sliding door D moves inside the upper rail L1. The front and rear flanges L13 roll on the upper and lower sides, so that the upper and lower sides of the sliding door D are guided by the upper and lower rails L1 and L2.

By the way, the height W of the opening W of the structure is not constant in the left-right direction, but is slightly different. It is often higher than. When the upper rail L1 is attached to the opening W, the mounting height of the upper rail L1 becomes uneven in the left-right direction, which may cause running resistance of the sliding door.

However, in the upper guide device 1 of the present embodiment, since the runner body 3 is attached to the sliding door fixing body 2 so as to be vertically movable, the sliding door fixing is performed against the unevenness of the mounting height of the upper rail L1. The relative height of the runner body 3 to the body 2 can be changed (adjuster function), and the sliding door D can be smoothly opened/closed based on this adjuster function.

Specifically, with the opening/closing operation of the sliding door D, the guide roller 32 of the runner body 3 travels on the front and rear flange portions L13 of the upper rail L1. If the mounting height of the upper rail L1 becomes higher, as shown in FIG. 11, the external force upward acts slowly on the runner body 3 by the front and rear flange portions L13 via the guide rollers 32. When an upward external force is applied to the runner body 3, the runner body 3 is relatively displaced upward along the inclined guide hole 223 of the sliding door fixing body 2 by the guide boss portion 37 thereof, and the mounting height is not uniform. Can absorb sex.

On the contrary, if the mounting height of the upper rail L1 becomes low, the runner body 3 may be displaced toward the sliding door fixing body 2 side by the gravity of the runner body 3 (that is, the runner body 3 is naturally displaced). If it is not displaced or is insufficient due to, the runner body 3 moves up relative to the upper rail L1. At this time, the top 32b of the guide roller 32 of the runner body 3 is set higher than the top of the runner body 31 (the top 36b of the jump-up suppressing protrusion 36 in the present embodiment). The top 32b of 32 first comes into contact with the inner surface of the top wall L11 of the upper rail L1, and the downward external force slowly acts on the runner body 3. In this way, in the runner body 3, the top portion 32b of the guide roller 32 first comes into contact with the top wall portion L11. Therefore, running resistance due to the runner body 3 slidingly contacting the top wall portion L11 can be reduced, and the sliding door D Can be operated smoothly.

When a downward external force acts on the runner body 3, the runner body 3 is relatively moved downward by the guide boss portion 37 along the inclined guide hole 223 of the sliding door fixing body 2 as when the runner body 3 is raised. It is possible to displace and absorb the nonuniformity of the mounting height.

On the other hand, when the sliding door D is opened or closed vigorously, the sliding door D may collide with the door frame F vigorously, and the sliding door D may jump up at the time of this collision. Even when the sliding door D is flipped up, in the sliding door D provided with the upper guide device 1 of the present embodiment, the flipping up can be effectively suppressed.

Specifically, when the sliding door D jumps up, the upper guide device 1 also rises and the runner body 3, specifically, the top 32b of the guide roller 32 collides vigorously with the inner surface of the top wall L11 of the upper rail L1. To do. When an impact force is applied to the runner body 3 due to this collision, each of the left and right, front and rear guide rollers 32 is made of an elastic body, so that each guide roller 32 is elastically deformed as shown by the chain double-dashed line in FIG. Then, it comes into contact with the inner surface of the top wall portion L11 of the upper rail L1 together with the jump-up suppressing projection portion 36. At the same time, the inclined guide surfaces 221b and 222a on both upper and lower sides of the sliding door fixing body 2 come into contact with the inclined inner side surface 38a of the runner body 3 and the runner side inclined guide surface 34b, respectively, so that a frictional force is generated on these abutting surfaces. Moreover, the outer diameter of the guide boss portion 37 of the runner body 3 is set to have the same dimension as the width of the inclined guide hole 223 of the sliding door fixing body 2, and the upper edge of the inclined guide hole 223 of the sliding door D is set. Since the inclination angle is 15 degrees, the guide boss portion 37 does not jump up in the inclined guide hole 223, and a frictional force is generated between them.

Due to these frictional forces, the inclined guide hole 223 and the guide boss portion 37 are not relatively displaced or hardly displaced, and the reaction force by the upper rail L1 against the impact force acts at or near that position. Therefore, the sliding door fixing body 2 and the runner body 3 do not move up and down relatively, and the flip-up of the sliding door D can be effectively suppressed.

The upper guide device 1 for a sliding door described above is an embodiment of the present invention, and its specific configuration and the like can be appropriately changed without departing from the spirit of the present invention. Hereinafter, the modified example will be described.

(1) In the above embodiment, the upper guide device 1 is applied to a non-suspending sliding door that is not provided with a slide assist device, but is also applicable to a hanging sliding door. The present invention is also applicable to a sliding door provided with a slide assist device on both sides or one of the two sides.

FIG. 12 is a perspective view showing the outline of a hanging sliding door to which the upper guide device is applied and in which a slide assist device is provided on the right side.

In the sliding door d according to this other embodiment, an upper guide device 100 for further suppressing jumping is provided between the left and right upper guide devices for suspension 104, 105.

The upper guide device 100 is embedded in a predetermined location above the sliding door d, and is fixed to the sliding door d from above or from the side in this embedded state. The specific configuration of the upper guide device 100 is the same as that of the above-described embodiment except for the fixing structure, and thus the detailed description thereof is omitted here, and the reference numerals in the above-described embodiment are used as appropriate.

Further, since the hanging upper guide devices 104 and 105 also have a known structure, detailed description thereof will be omitted. However, each of the hanging upper guide devices 104 and 105 is a relative structure between the sliding door fixing body and the runner body. A height adjusting mechanism (not shown) for adjusting the distance in the vertical direction is provided, and the inclination of the sliding door d about the front-rear direction can be adjusted. Further, the slide assist device 106 is attached to the hanging upper guide device 105 disposed on the right side among the hanging upper guide devices 104 and 105. The slide assist device 106 will be briefly described below.

The slide assist device 106 includes a frame 110 connected to the hanging upper guide device 105, an elastic member 111 (one pair of front and rear in this embodiment) housed in the frame 110 with one end free. A slide member 112 attached to the free end of the elastic member 111, a damper member 113 that imparts a cushioning effect to the movement of the slide member 112 in at least a predetermined direction, and a receiving member 115 fixed to the upper rail L. The sliding member 112 and the receiving member 115 are engaged with each other when the sliding door d is slid in one direction (rightward in the illustrated example), and the elastic member 111 is extended to cause the sliding member 112 to move. The urging force is accumulated, and when the slide member 112 reaches a predetermined holding position, the engagement between the slide member 112 and the receiving member 115 is released, the slide member 112 is held at the holding position, and the opposite direction (Fig. When the slide member 112 and the receiving member 115 are engaged with each other when sliding in the left direction, the biasing force of the elastic member 111 is released, and the damping force of the damper member 113 is applied while the damping force is applied. The slide assist force is applied to the sliding door d through the slide member 112.

Similarly to the upper guide device 1 according to the above-described embodiment, the upper guide device 100 mounted on such a hanging sliding door d slowly moves the sliding door fixing body 2 and the runner body 3 relatively in the height direction. When displacing, the guide boss portion 37 can be relatively moved along the inclined guide hole 223, so that the height change by the height adjusting mechanism of the upper guide device 100 can be flexibly followed. On the other hand, the inclined guide hole 223 and the guide boss portion 37 are not relatively displaced or hardly displaced with respect to the impact force such as the flip-up of the sliding door d caused by the impact, and the impact force is generated at or near the place. Therefore, the sliding door fixing body 2 and the runner body 3 do not move up and down relatively, and the sliding up of the sliding door d can be effectively suppressed.

Specifically, when the height adjusting mechanism of the hanging upper guide devices 104 and 105 is operated, the relative heights of the sliding door d and the upper rail L change. In this case, if the relative height of the sliding door fixing body and the runner body of the upper guide device does not change, the runner body may interfere with the upper rail L and may cause running resistance of the sliding door.

However, in the upper guide device 100 of this embodiment, since the runner body 3 is attached to the sliding door fixing body 2 so as to be movable up and down, the height adjustment mechanism can absorb the height change. It is possible to absorb an attachment error with respect to the sliding door d, and to smoothly open and close the sliding door d.

Further, with respect to the point that the relative height between the sliding door fixing body 2 and the runner body 3 can be automatically adjusted according to the opening/closing operation of the sliding door d, and that the jumping up of the sliding door d can be effectively suppressed, It is similar to the embodiment.

(2) In the above-described embodiment, the upper guide device 1 in which the slant door fixing body 2 is provided with the inclined guide hole 223 and the runner body 3 is provided with the guide boss portion 37 has been described. It may be provided on the runner body, and a guide portion such as a guide boss portion may be provided on the sliding door fixing body.

(3) In the above-described embodiment, the pair of left and right upper guide devices 1 are described as being arranged in the same direction on the upper part of the door body D1 of the sliding door D, but the left and right upper guide devices 1 are opposite to each other. The runner body 3 may be displaced toward the outer side in the left-right direction of the sliding door D as the runner body 3 rises with respect to the sliding door fixing body 2, as well as the orientation. Alternatively, it may be arranged so as to be displaced inward in the left-right direction of the sliding door D in accordance with the rise. However, if the upper guide device 1 is disposed in such a direction that the runner body 3 is displaced toward the outer side in the left-right direction of the sliding door D as the runner body 3 rises with respect to the sliding door fixing body 2, the jump-up suppressing protrusion 36 is provided in the upper guide. In the device 1, since the sliding door D is disposed on the outer side in the opening/closing direction, jumping of the sliding door D can be effectively suppressed.

Further, in the above-described embodiment, the pair of left and right upper guide devices 1 are provided, but one side may be omitted and replaced with a normal upper guide device.

(4) In the above embodiment, the upper rail L1 is formed in a C shape that opens downward, but the specific shape of the upper rail L1 is not limited to this. For example, the front and rear flange portions L13 are formed in a flat plate shape, but may be formed in an arc shape protruding downward. Further, although the upper rail L1 is configured in a C shape, it may be configured in a U shape, that is, configured to open to the side. In this case, the runner guide roller is configured as a single wheel.

1 Upper guide device 2 Sliding door fixing body 221b Upper inclined guide surface (corresponding to the first inclined contact surface)
222a Lower inclined guide surface (corresponding to the first inclined contact surface)
223 Inclined guide hole (corresponds to the inclined hole)
3 Runner body 31 Runner body 32 Guide roller 32b Top 34b Runner side inclined guide surface (corresponding to the second inclined contact surface)
36 Jump-up suppression protrusion 37 Guide boss (corresponding to the guide)
38a inclined inner side surface (corresponding to the second inclined contact surface)

Claims (4)

A sliding door fixing member fixed to the upper part of the sliding door that opens and closes the opening of the structure, and is attached to the sliding door fixing member so as to be vertically movable and guides the sliding door along an upper rail provided on the structure. In the upper guide device of the sliding door with the runner body,
An inclined hole provided in one of the sliding door fixing body and the runner body and extending to be inclined with respect to an upper edge of the sliding door, and a width of the inclined hole provided in the other one of the sliding door fixing body and the runner body. And a guide portion that has a dimension of the same width as that of the sliding door fixing body and the runner body that moves up and down relatively by being relatively guided along the inclined hole.
The inclined hole is inclined in the range of 5 degrees to 25 degrees with respect to the upper edge of the sliding door ,
The runner body includes a main body portion and a guide roller attached to the main body portion and traveling along the upper rail,
The top of the guide roller is set higher than the top of the main body,
The main body portion includes a base body portion, and a jump-up suppressing projection portion that projects upward from the base body portion, the top portion is located between the base body portion and each top portion of the guide roller, and that is formed of a hard synthetic resin. Equipped with
An upper guide device for a sliding door, wherein the guide roller is made of an elastic body, and elastically deforms when the sliding door is flipped up so as to come into contact with the inner surface of the top wall of the upper rail together with the jumping suppressing protrusion. .. A sliding door fixing member fixed to the upper part of the sliding door that opens and closes the opening of the structure, and is attached to the sliding door fixing member so as to be vertically movable and guides the sliding door along an upper rail provided on the structure. In the upper guide device of the sliding door with the runner body,
An inclined hole provided in one of the sliding door fixing body and the runner body and extending to be inclined with respect to an upper edge of the sliding door, and a width of the inclined hole provided in the other one of the sliding door fixing body and the runner body. And a guide portion that has a dimension of the same width as that of the sliding door fixing body and the runner body that moves up and down relatively by being relatively guided along the inclined hole.
The inclined hole is inclined in the range of 5 degrees to 25 degrees with respect to the upper edge of the sliding door,
One of the sliding door fixing body and the runner body has a first inclined contact surface along the inclined hole, and the other one of the sliding door fixing body and the runner body has the first inclined contact surface. An upper guide device for a sliding door having a second inclined contact surface that abuts the surface. The runner body includes a main body portion and a guide roller attached to the main body portion and running along the upper rail, and the top portion of the guide roller is set higher than the top portion of the main body portion. The upper guide device for a sliding door according to claim 2, which is characterized in that. The main body portion of the runner body is a base body portion and protrudes upward from the base body portion, and the top portion is located between the base body portion and each top portion of the guide roller and is configured to prevent jumping up made of a hard synthetic resin. With a protrusion,
The said guide roller is comprised from an elastic body, and it elastically deforms with respect to the flip-up of the said sliding door, and contacts the inner surface of the top wall of the said upper rail with the said jumping-up suppression protrusion part, The claim 3 characterized by the above-mentioned. Upper guide device for sliding doors.

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