JP4437859B2 - Runner unit for door panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a runner unit applied to a sliding door, a hanging door, etc., and more particularly to a runner unit in which an adjustment element of a front-rear adjustment mechanism assembled in the runner unit is configured with an arm and a screw that swing back and forth.
[0002]
[Prior art]
A runner unit having a swing arm and a screw as adjustment elements can be found in, for example, Japanese Patent Application Laid-Open No. 11-50729 related to the applicant's proposal. There, the housing is fixed to the door panel, and the swinging arm is pivotally supported via a horizontal shaft so as to tilt forward and backward, and an adjusting screw is provided between the swinging arm and the housing. A roller is pivotally supported at the upper end of the swing arm via a roller bracket that also serves as a slide body for vertical adjustment.
[0003]
In the present invention, the swing arm and the groove cam are used together as the adjustment element. However, it is known in Japanese Patent Application Laid-Open No. 8-21145 that the front-rear adjustment is performed using the groove cam. JP-A-10-227170 discloses an adjustment structure having the same concept.
[0004]
[Problems to be solved by the invention]
In the runner unit disclosed in Japanese Patent Laid-Open No. 11-50729, the roller is tilted back and forth together with the swing arm during front-rear adjustment. Therefore, the rail groove shape of the guide rail and the circumferential cross-sectional shape of the roller need to be semicircular, and the guide rail must be specially manufactured, and the cost is inevitable. In a state where the swing arm is tilted to the limit, an uneven load acts on the roller rolling surface, so that the roller may be unevenly worn, and this is not applicable particularly when the door panel is heavy.
[0005]
It is an object of the present invention to provide a runner unit that can easily perform front-rear position correction when the door panel is adjusted forward and backward during construction or when the door panel warps and deforms due to secular change. Another object of the present invention is that the runner body and the door panel can be moved relative to each other in parallel during front-rear adjustment, thus eliminating the uneven load acting on the roller during front-rear adjustment and keeping the runner body in an appropriate state at all times. Another object of the present invention is to provide a suspended-car runner unit that can travel and move and can be applied to a C-shaped guide rail that is generally used. Another object of the present invention is to provide a suspended-runner-type runner unit that has a height adjustment function in addition to a front-rear adjustment function, requires only a small number of components, and can reduce manufacturing costs accordingly. . Another object of the present invention is to provide a runner unit that also includes a back-and-forth adjustment mechanism and that can perform front-rear adjustment on the lower side of the door panel and also serves as a steady rest.
[0006]
[Means for Solving the Problems]
The runner unit according to the present invention includes a runner body 4 that is guided by the guide rail 2 and a housing 5 that is attached to the door panel 1. The runner unit 8 is provided between the runner shaft 8 provided on the runner body 4 and the housing 5. A front and rear adjustment mechanism is provided. The front / rear adjustment mechanism is supported by a swing arm 19 supported by a vertical swing shaft 18 fixed to the housing 5 so as to swing back and forth, and supported by the housing 5 so as to slide left and right. And a cam plate 20 that is operated to be displaced to the right. The runner shaft 8 is connected to the swing arm 19 in a state of being inserted through the cam groove 23 provided in the cam plate 20. Thus, the lateral displacement of the cam plate 20 is converted into the longitudinal displacement by the cam groove 23, and the runner shaft 8 and the swing arm 19 are adjusted in the longitudinal direction.
[0007]
The runner shaft 8 is rotatably supported by the runner block 6. The runner shaft 8 and the swing arm 19 are connected via a screw 25 for height adjustment. An operation portion 9 is provided on a part of the runner shaft 8 protruding from the housing 5.
[0008]
An arm chamber 13 for accommodating the swing arm 19 is formed in the housing 5 so as to penetrate in the front-rear direction. A guide portion 14 for slidingly guiding the cam plate 20 is provided on the upper wall of the arm chamber 13. The cam plate 20 includes a slide portion 20a having a U-shaped cross section guided by the guide portion 14, and a female screw portion 20b provided at one end lower portion of the slide portion 20a. The adjusting screw 21 supported only rotatably by the housing 5 is screwed into the female screw portion 20b of the cam plate 20 so that the cam plate 20 can be displaced in the left-right direction.
[0009]
Another runner unit of the present invention includes a runner 31 that is guided by the guide rail 3 to restrict the forward and backward movement of the lower side of the door panel 1 and a housing 32 that is attached to the door panel 1. A second front / rear adjustment mechanism is provided between the runner shaft 50 and the housing 32. The front / rear adjustment mechanism is provided between a swing arm 41 supported by a vertical swing shaft 44 fixed to the housing 32 so as to swing back and forth, and between the swing arm 41 and the housing 32. An adjustment screw 42 that adjusts 41 in the front-rear direction and a female screw body 43 that is attached to the swing arm 41 and meshes with the adjustment screw 42 are included. The runner shaft 50 is supported by a boss 40 provided on the swing arm 41 so as to be movable up and down, and is advanced and biased by a spring 52.
[0010]
An arm chamber 36 for accommodating the swing arm 41 in the housing 32 is formed so as to open downward from one side of the outer surface in the front-rear direction. One end of the swing arm 41 is pivotally supported by the swing shaft 44 on one side of the arm chamber 36 so that it can swing back and forth, and a boss portion 40 is provided at the swing tip. The adjustment screw 42 is assembled in a state of penetrating the swing arm 41 and the female screw body 43 in the front-rear direction, and the shaft end of the adjustment screw 42 is rotatably supported by the housing 32. Let it come.
[0011]
[Effects of the invention]
Since the swing arm 19 is pivotally supported by the swing shaft 18 in the vertical direction so that the runner shaft 8 connected to the swing arm 19 can be swung back and forth along the horizontal plane, Can be prevented from changing. Therefore, according to the runner unit of the present invention, the runner body 4 can always travel and move in an appropriate posture, and the uneven wear of the roller 7 that cannot be avoided in this type of conventional runner can be eliminated. Since the posture of the roller 7 can always be kept constant, it is advantageous in that a popular product having a C-shaped cross section that is generally used as the guide rail 2 can be applied.
[0012]
The runner shaft 8 is accompanied by the swing arm 19 and supported stably so that only the back and forth swing is possible, and then the runner shaft 8 is adjusted and moved in the front-rear direction by positioning the cam plate 20 to the left and right, and the adjustment is performed. Therefore, for example, when an external force in the front-rear direction or the left-right direction acts on the door panel 1, the swing arm 19 and the cam plate 20 counteract these external forces in cooperation, and the runner shaft 8 is stabilized at the adjustment position. Position. In the conventional runner unit using the point cam groove as an adjustment element, the runner base corresponding to the swing arm 19 is held only by the cam groove with respect to the housing and lacks stability. In the runner unit of the present invention that regulates the operating range of the runner shaft 8, the runner shaft 8 can be stably held in position. There is no need to form a guide groove on the housing 5 side.
[0013]
According to the runner unit that adjusts the height of the door panel 1 by connecting the runner shaft 8 and the swing arm 19 via a screw 25 and changing the screwing amount of the runner shaft 8 using the screw 25. The structure of the height adjustment mechanism can be simplified. In addition, since the swing arm 19 for front / rear adjustment is used as an adjustment target for height adjustment, the number of components is reduced in spite of being a runner unit having front / rear adjustment and height adjustment functions, Cost can be reduced.
[0014]
Since the housing 5 is provided with a front and rear penetrating arm chamber 13, a swing arm 19 is incorporated therein, and the cam plate 20 is guided and supported by the upper wall of the arm chamber 13 so as to be freely slidable to the left and right. 19 and the cam plate 20 can be easily and quickly assembled to the housing 5, and labor and cost required for assembling the runner unit can be reduced. According to the cam plate 20 having the slide part 20a and the female screw part 20b, the number of parts for front-rear adjustment is reduced compared to the case where the female screw body for the adjustment screw 21 is made as a separate part, and the manufacturing cost is correspondingly reduced. Can be saved.
[0015]
In the runner unit including the runner 31 that restricts the back and forth movement of the door panel 1, the load to be borne is sufficiently small as compared with the runner unit including the previous runner body 4. Therefore, an adjustment screw 42 is provided between the swing arm 41 and the housing 32, and the distance between the swing arm 41 and the housing 32 is adjusted to adjust the runner 31 in the front-rear direction. Also in this case, since the runner shaft 50 only moves horizontally along with the swing arm 41, the posture of the runner 31 is prevented from changing with the longitudinal adjustment, and the runner 31 is moved relative to the guide rail 3. Can always run properly. The crossing angle of the adjusting screw 42 and the swinging arm 41 is changed by the swinging back and forth of the swinging arm 41 at the time of forward / backward adjustment. In order to absorb the change in the angle and adjust and turn the adjusting screw 42 without any trouble. In addition, a female screw body 43 is provided separately from the swing arm 41.
[0016]
Since the runner shaft 50 is assembled to the boss portion 40 provided on the swing arm 41, a case for accommodating the runner shaft 50 and the spring 52 for advancing and biasing the runner shaft 50 is omitted, and the cost of the runner unit is correspondingly reduced. Can be reduced. The runner shaft 50 is advanced and biased by the spring 52 even when the guide rail 3 is inclined toward one side, the runner 31 is brought into close contact with the guide rail 3 and the door panel 1 is This is to prevent rattling and smooth the opening and closing.
[0017]
The housing 32 is provided with an arm chamber 36 that opens downward on one side in the front-rear direction and the swing arm 41 is assembled there. Therefore, the swing arm 41 can be easily and easily assembled to the housing 32. Incidentally, since components such as the runner 31, the adjusting screw 42, and the female screw body 43 are assembled in advance to the swing arm 41, most of the assembly work can be easily performed. Since the swinging arm 41 swinging back and forth is completely accommodated in the arm chamber 36, the appearance can be improved and, for example, if the opening surface of the arm chamber 36 is covered with a cap, it is less susceptible to tampering. .
[0018]
【Example】
FIG. 1 thru | or FIG. 6 shows the Example which applied the runner unit based on this invention to the sliding door. In FIG. 2, reference numeral 1 is a wooden door panel, 2 is an upper guide rail made of an aluminum profile, and 3 is a lower guide rail. A suspension type runner unit is attached to each of the upper corners of the both ends of the door panel 1, and a runner unit for steadying is attached to each of the lower corners of the both ends of the door panel 1.
[0019]
The suspended-car runner unit includes a runner body 4 that is guided by the guide rail 2, a housing 5 that is embedded and fixed to the door panel 1, a front and rear adjustment mechanism, a height adjustment mechanism, and the like provided in the housing 5. To do. In FIG. 3, the runner body 4 includes a horizontally long runner block 6, a pair of left and right rollers 7 disposed on the front and rear surfaces of the runner block 6, and a runner shaft 8 that is rotatably connected and supported at the center of the runner block 6. And consist of Reference numeral 11 denotes a roller shaft. An operation portion 9 for rotating the runner shaft 8 is provided on the shaft portion facing the lower surface of the runner block 6, and a screw portion 10 is formed in the majority lower portion of the shaft portion.
[0020]
The housing 5 is formed of a plastic molded product having a reverse keyhole shape when viewed from the side and a quadrangular shape when viewed from the front, and an arm chamber 13 penetrating in the front-rear direction is formed at substantially the center thereof. A guide portion 14 for a cam plate 20 to be described later is formed in an inverted convex shape on the upper wall of the arm chamber 13 (see FIG. 4), and a clearance hole 15 for the runner shaft 8 is provided in the approximate center of the upper wall. To do. A receiving seat 16 is provided at the inner surface right end of the arm chamber 13.
[0021]
The front / rear adjustment mechanism is fitted in the receiving seat 16 and guided by a swinging arm 19 pivotally supported by a vertical pin (swinging shaft) 18 so as to be able to swing back and forth. It consists of a cam plate 20 that is supported and an adjustment screw 21 that slides the cam plate 20. The swinging tip portion of the swinging arm 19 is formed in a boss shape, and a screw hole (female screw body) 22 that engages with the threaded portion 10 provided on the runner shaft 8 is formed therein. The cam plate 20 is formed of a press fitting integrally formed with a slide portion 20a having a U-shaped cross section that opens upward and a female screw portion 20b that is continuously bent at a side end of the slide portion 20a. A cam groove 23 is provided in the plate surface of the slide portion 20a. A screw boss 24 that meshes with the adjustment screw 21 is formed in the female screw portion 20b. In order to allow the swing arm 19 to swing back and forth, the front and rear thickness dimension of the peripheral wall of the arm chamber 13 is set larger than the front and rear thickness dimension of the swing arm 19.
[0022]
Each said components 18-24 are assembled | attached to the housing 5 in the following way, for example. First, the slide portion 20 a is applied to the guide portion 14 from the lower surface side, and the cam plate 20 is assembled to the arm chamber 13. Next, the base end of the swing arm 19 is fitted into the receiving seat 16, and the receiving seat 16 and the swing arm 19 are connected by a pin 18. Next, the adjusting screw 21 is inserted into the arm chamber 13 from the screw seat 26 side, the screw shaft is screwed into the screw boss 24 of the female threaded portion 20b, and the retainer plate 27 inserted from above the housing 5 is used to adjust the adjusting screw. 21 can not be removed, but the rotation can be engaged. Finally, the runner shaft 8 is inserted into the escape hole 15 and the cam groove 23, and the threaded portion 10 is screwed into the screw hole 22 of the swing arm 19 to integrate the runner body 4 with the housing 5.
[0023]
The runner unit, which is unitized as described above, is incorporated in the guide rail 2 in advance, and after the housing 5 is loaded into the mounting hole 28 formed in the door panel 1, the screw 29 is screwed in so as to be integrated with the door panel 1. It becomes. In the state where the door panel 1 is suspended, the distance between the front and back adjacent door panels 1 is confirmed. If the value is not appropriate, the adjusting screw 21 is rotated to run the runner shaft 8 and the door panel 1. Is relatively displaced back and forth.
[0024]
Specifically, when the adjustment screw 21 is operated to move the cam plate 20 to the left in FIG. 3, the runner shaft 8 is pushed by the cam groove 23 and tends to move to the front side of the page. Actually, since the runner body 4 is restrained by the guide rail 2 and cannot move back and forth, the side of the door panel 1 is displaced to the back side of the page. In FIG. 1, the swing arm 19 swings relative to the roller shaft 11 about the roller shaft 11 in the counterclockwise direction. Naturally, when the cam plate 20 is moved in the opposite direction, the door panel 1 is displaced away from the paper surface in the figure. In this way, the front and rear positions of the door panel 1 can be easily and quickly adjusted simply by adjusting and turning the adjustment screw 21.
[0025]
The height adjustment mechanism is composed of the runner shaft 8 and the swing arm 19, and rotates the arm chamber 13 of the runner shaft 8 to change the screwing amount of the screw portion 10 with respect to the swing arm 19 to a large or small. The height of the door panel 1 can be increased or decreased. That is, the screw portion 10 and the screw hole 22 also serve as the height adjusting screw 25.
[0026]
5 and FIG. 6, the runner unit for steadying is provided between a runner 31 guided by the lower guide rail 3, a housing 32 embedded in the door panel 1, and both 31 and 32. 2 front and rear adjustment mechanisms.
[0027]
As shown in FIG. 6, the housing 32 has an incompletely circular embedded portion 34 that is loaded into the mounting hole 33 of the door panel 1, and a flange portion 35 that projects to the left and right of the embedded portion 34. An arm chamber 36 for accommodating the front / rear adjustment mechanism is provided inside. The arm chamber 36 has an opening on the side where the flange portion 35 extends and a lower surface side, and a receiving seat 37 for a swing arm 41 which will be described later is provided on the right side of the arm chamber 36.
[0028]
The front / rear adjustment mechanism includes a horizontal T-shaped swing arm 41 having a vertically long boss 40 at one end, an adjustment screw 42 for operating the swing arm 41 back and forth, a female screw body 43 for the adjustment screw 42, and the like. Constitute. The swing arm 41 is configured such that the end far from the boss portion 40 is fitted into the previous receiving seat 37, and then the receiving seat 37 and the swing arm 41 are connected by a vertical pin (swing shaft) 44. By this, the housing 32 is pivotally supported so as to be swingable back and forth. The round shaft-shaped female screw body 43 is supported in parallel with the pin 44 through an adjustment hole 45 provided in the middle of the swing arm 41. By screwing the adjustment screw 42 into the screw hole 46 provided in the female screw body 43, the tip of the screw shaft is pivotally supported by the inner inner wall of the housing 32, and the retainer plate 47 is engaged and held so as not to move in the axial direction. The swing arm 41 can be swung back and forth via the female screw body 43 with the adjusting screw 42. Reference numeral 48 denotes an operation unit.
[0029]
The runner 31 includes a runner shaft 50 supported by a shaft hole 49 provided in the boss portion 40 and a vertical roller 51 provided at the lower end of the runner shaft 50. The runner shaft 50 is guided and supported by a shaft hole 49 so as to be movable up and down, and is pushed down and biased by a compression coil spring 52 loaded on the upper portion thereof. The vertical roller 51 has a flange portion 53 and an inverted frustoconical roller portion 54, and is supported by a runner shaft 50 so as to be freely rotatable.
[0030]
When performing the front-rear adjustment, the operation unit 48 facing the outer surface of the housing 32 is rotated to swing the swing arm 41 forward or backward. In this case, the relationship between the swing arm 41 and the door panel 1 is that the swing arm 41 is centered on the runner shaft 50 and the pin 44 side is relative to that of the suspension wheel type runner unit. By swinging, the door panel 1 is relatively swung back and forth. In this way, if the front and rear adjustment mechanisms are provided in each of the upper and lower runner units of the door panel 1, the entire door panel 1 is adjusted and moved in parallel in the front-rear direction, or only the upper or lower side of the door panel 1 is moved back and forth. Since it can be adjusted and moved in the direction, it is possible to eliminate the rubbing between adjacent door panels 1 when the door panel 1 is opened and closed, not only when the sliding door is constructed, but also when the door panel 1 returns and deforms due to aging.
[0031]
FIG. 7 shows a modification of the suspended-car runner unit. In this case, an off-the-shelf nut is used as the female screw body 22 of the swing arm 19, and this nut is loaded into a square hole 57 orthogonal to the insertion hole 56 for the runner shaft 8 formed in the swing arm 19. The shaft 8 was received. Further, the retainer plate 27 was inserted and loaded in the front-rear direction. Others are substantially the same as the previous embodiment, so the same reference numerals are given to the same members, and the description thereof is omitted.
[0032]
In addition to the above-described embodiments, the suspension type runner unit and the runner unit for steadying can be applied to the folding door, respectively. Bolts other than screws can be applied to the adjusting screws 21 and 42. The female screw body 43 can be replaced by a plate nut. The runner unit for steadying is not necessarily provided with the vertical roller 51, and may be provided with a slide piece guided by the guide rail 3 instead of the vertical roller 51.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line AA in FIG.
FIG. 2 is a front view of a sliding door.
FIG. 3 is a longitudinal front view of a suspended wheel runner unit.
FIG. 4 is a vertical side view of a suspended wheel runner unit.
FIG. 5 is a front view of a runner unit for steadying.
6 is a cross-sectional view taken along line BB in FIG.
FIG. 7 is a front view showing another embodiment of the suspended wheel runner unit.
[Explanation of symbols]
1 door panel 2 guide rail (top)
3 Guide rail (bottom)
4 Runner body 5 Housing 8 Runner shaft 18 Oscillating shaft (pin)
19 Swing arm 20 Cam plate 21 Adjustment screw 23 Cam groove

Claims (5)

A runner body 4 guided by the guide rail 2 and a housing 5 attached to the door panel 1;
A runner unit in which a longitudinal adjustment mechanism is provided between the runner shaft 8 provided on the runner body 4 and the housing 5,
The front / rear adjustment mechanism is supported by a swing arm 19 supported by a vertical swing shaft 18 fixed to the housing 5 so as to swing back and forth, and supported by the housing 5 so as to slide left and right. And a cam plate 20 operated to be displaced to
The runner shaft 8 is connected to the swing arm 19 through a cam groove 23 provided in the cam plate 20.
A runner unit for a door panel, wherein a lateral displacement of the cam plate 20 is converted into a longitudinal displacement by a cam groove 23 and the runner shaft 8 and the swing arm 19 are adjusted in the longitudinal direction. The runner shaft 8 is rotatably supported by the runner block 6.
The runner shaft 8 and the swing arm 19 are connected via a screw 25 for height adjustment,
The runner unit for a door panel according to claim 1, wherein an operation portion 9 is provided on a part of the runner shaft 8 protruding from the housing 5. An arm chamber 13 for accommodating the swing arm 19 in the housing 5 is formed in a front-rear direction,
A guide portion 14 for slidingly guiding the cam plate 20 is provided on the upper wall of the arm chamber 13.
The cam plate 20 includes a slide portion 20a having a U-shaped cross section guided by the guide portion 14, and a female screw portion 20b provided at one end lower portion of the slide portion 20a.
The runner unit for a door panel according to claim 1 or 2, wherein the adjusting screw 21 rotatably supported by the housing 5 is screwed into the female screw portion 20b of the cam plate 20, and the cam plate 20 is displaced in the left-right direction. A runner 31 that is guided by the guide rail 3 to restrict the back-and-forth movement of the door panel 1 and a housing 32 that is mounted on the door panel 1 are provided between the runner shaft 50 of the runner 31 and the housing 32. A runner unit having two longitudinal adjustment mechanisms,
The front / rear adjustment mechanism is provided between a swing arm 41 supported by a vertical swing shaft 44 fixed to the housing 32 so as to swing back and forth, and between the swing arm 41 and the housing 32. An adjustment screw 42 that adjusts 41 in the front-rear direction, and a female screw body 43 that is attached to the swing arm 41 and meshes with the adjustment screw 42.
A runner unit for a door panel, in which a runner shaft 50 is supported by a boss 40 provided on a swing arm 41 so as to be movable up and down and is biased by a spring 52. An arm chamber 36 that houses the swing arm 41 in the housing 32 is formed in a state of opening downward with one side of the outer surface in the front-rear direction,
One end of the swing arm 41 is pivotally supported by the swing shaft 44 on one side of the arm chamber 36 so that it can swing back and forth, and a boss portion 40 is provided at the swing tip.
The adjustment screw 42 is assembled in a state of penetrating the swing arm 41 and the female screw body 43 in the front-rear direction, and the shaft end thereof is rotatably supported by the housing 32, and the operation portion 48 at the other end is provided outside the housing 32. The runner unit for door panels according to claim 4, which faces the side.

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