JP2004215751A - Single guide rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a single guide rail that ensures a smooth operation and permits decrease in rail width. <P>SOLUTION: The single guide rail has a rail provided on the drawer 20 side of furniture such as a cabinet and a rail in a relative movement relationship with the rail and provided on the storage 10 side. One rail member 22 has a clearance opening while forming, a rectangle surrounded by four wall portions 22A, 22B, 22C and 22D in the cross section and the other rail member 12 has a holding member 30 having wall portions 12A, 12B and 12C forming a part of a swastika and inserted into one rail member 22 and into which the wall portions 12B and 12C of the other rail member 12 are inserted and having a cross sectional shape and four rollers R1, R2, R3 and R4 mounted to the holding member and rolling between the two facing wall portions. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a guide rail used for reducing friction when drawing out a drawer or a table of office furniture such as a cabinet or home furniture or the like, and relates to a so-called single type guide rail in which a solid side and a movable side are combined. The drawer of the present application represents a general thing to be drawn, and includes a drawer, a table to be drawn, and the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, when a heavy object such as a drawer of a cabinet is drawn out, a single type or a double type guide rail incorporating individual rollers has been used to smoothly pull out the heavy item. Patent Literature 1 below discloses a slide rail incorporating a unit component in which a plurality of rollers (including a disc-shaped member) are mounted on a retainer instead of individual rollers.
[Patent Document 1]
Japanese Patent No. 3354637
[Problems to be solved by the invention]
Making the drawer as large as possible with respect to the size of the drawer housing is a natural proposition in view of the compactness of the furniture. Although it is possible to provide a slide rail that operates smoothly without play, there is still room for improvement in achieving this compactness. Also, when the inner rail is mounted on the drawer side, since the rail member has a predetermined gap, when it is mounted on the drawer side and pulled out, the unit parts and the like mounted inside may be visible from the outside. In addition, the aesthetic appearance is impaired, and since the sliding member is used, for example, grease may be attached to the sliding member.
Accordingly, an object of the present invention is to provide a single guide rail having a structure capable of operating smoothly and making the rail width small and compact.
Another object of the present invention is to prevent the attachment of dirt to a user while maintaining the appearance when the drawer is pulled out.
[0004]
[Means for Solving the Problems]
In view of the above object, in claim 1, there is provided a single-type guide rail having a rail provided on a drawer side of furniture such as a cabinet and a rail provided on a storage body side which has a relative movement relation to the rail. The rail member has a first wall portion, a second wall portion extending in a bent shape at one end portion of the first wall portion, and a second wall portion at the other end portion with respect to the first wall portion. A fourth wall portion bent in the same direction as the second wall portion, and a bent end portion of the second wall portion on the same side as the first wall portion with respect to the second wall portion; And a third wall portion that is separated from the fourth wall portion, and the other rail member has a cross section from the side of the third wall portion toward the side of the first wall portion in a cross section thereof. A wall portion extending from the end portion of the A wall portion close to the first wall portion, a B wall portion extending toward the second wall portion, and the B wall portion A C wall extending from the end close to the second wall toward the first wall, and an extension extending outward from the one rail member continuously with the A wall; The one rail member and the other rail member are spaced apart from each other with a gap therebetween, and are inserted into the one rail member and insert the B wall portion and the C wall portion of the other rail member. A holding member having a cross-sectional shape, a first rolling element mounted on the holding member, and rolling substantially across the opposing wall surfaces of the first wall portion and the B wall portion, a third wall portion and a B wall portion A second rolling element that rolls substantially across the opposing wall surfaces of the third wall, a third rolling element that rolls substantially between the opposing wall surfaces of the fourth wall section and the C wall section, A combination of two rail members including a fourth rolling element that rolls substantially across a wall portion facing the wall portion. To provide a Doreru.
The one and the other rail members are not necessarily one each. In the case of a plurality of rolling elements, the number of rolling elements (holding members on which the rolling elements are mounted) increases, and the load is dispersed, thereby improving the durability of the guide rail.
[0005]
Since the rolling element that rolls substantially across the inner wall surface of one of the rail members and the A, B, and C wall portions of the other rail member is disposed, Movement due to rolling friction when moving relative to the other rail member, and it can move with a small force, and because it is mutually restricted in two dimensions via each rolling element, play can be regulated and smooth operation is possible Becomes More importantly, the third rolling element and the fourth rolling element are separated from the other rail member by the C wall and the A wall separated by the extension length (width) of the B wall. , Respectively, the rolling elements overlap each other in the width direction in accordance with the width of the B wall portion, so that one of the rail members can be made compact, and the guide rail can be made compact. become.
[0006]
According to claim 2, the one rail member is attached to the drawer body side, and the other rail member is attached to the storage body side, and is attached to the drawer body side and arranged to substantially cover one rail member from the outside. The single guide rail according to claim 1, further comprising a plate-shaped member.
[0007]
In one rail member, there is a gap opening between the third wall portion and the fourth wall portion due to the necessity of relative movement, so that when the rail member is attached to the drawer body side and pulled out, the gap is formed. The internal mechanism can be seen through the opening and the appearance may be impaired, but this can be prevented by the presence of the plate-like member.In addition, the drawer-side rail member may be attached with grease, for example. And clothes can be prevented from touching it.
[0008]
According to the third aspect, the front end of the drawer of the holding member comes into contact with the first engagement portion provided at a predetermined position of the other rail member, causing a sudden increase in pullout resistance, and the drawer rear side. 3. The single guide rail according to claim 1, wherein an end portion of the single guide rail contacts a second engagement portion provided at another predetermined position of the other rail member to cause a sudden increase in pushing resistance.
If the resistance of pulling out and pushing in of the drawer is rapidly increased by using the holding member which is an essential member, the drawer can be temporarily stopped, and the mechanism is simple.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail based on embodiments shown in the accompanying drawings.
FIG. 1 is a side view of a single-type guide rail according to the present invention, and FIG. 2 is an enlarged cross-sectional view taken along line BB of FIG. 2, showing a unit body described later in FIG. 2 cut in a simple plane. It is not illustrated, and is a diagram for clearly showing rollers. This is a rail mechanism that guides in the horizontal direction when a drawer 20 as a drawer is taken in and out of a housing 10 as a storage body in a horizontal direction, taking a cabinet as an example of furniture. However, any guide other than the horizontal direction such as the vertical direction is also within the scope of the present application.
[0010]
The guide rail mechanism will be described mainly with reference to FIG. The one rail member 22 is a drawer side rail member attached to the drawer 20 in this example. For example, the bracket 20B provided on the drawer side surface 20H is attached to the left and right (direction) flat wall portions 22A of the drawer side rail member 22. (1st wall part) It attaches to the engaging part 22F provided in (Hereinafter, flat shape is abbreviate | omitted for various wall parts), and is attached to a drawer, However, You may attach directly to a drawer side wall. . At the left and right end portions of the left and right wall portions, upper and lower (direction) wall portions 22D (fourth wall portion) and 22B (second wall portion) are formed to extend in a bent shape at a right angle, and the upper and lower portions on the drawer side surface 20H side are respectively formed. At the lower end of the wall portion 22B, a left and right (direction) wall portion 22C (third wall portion) is formed to extend in a bent shape on the same side as the left and right wall portions 22A.
[0011]
The left and right wall portions 22C have a smaller extension width than the left and right wall portions 22A, and the upper and lower wall portions 22D have a smaller extension width than the upper and lower wall portions 22B. Therefore, there is a gap opening between the left and right wall portions 22C and the upper and lower wall portions 22D. If one of the left and right wall portions 22C and the upper and lower wall portions 22D has a small width in order to secure the gap opening, the other may be the same as or longer than the wall portions 22A and 22B. Further, in this example, in the drawer side rail member 22, each wall portion extends in a bent shape at a right angle, but in the present application, the angle between these wall portions is not limited to a right angle. At such a general angle, it is sufficient that there is a gap opening between the wall portions 22D and 22C, and the above relationship of the width dimension is unnecessary.
[0012]
Returning to the example of FIG. 2, the other rail member 12 is a housing-side rail member attached to the housing 10 in this example, and is, for example, a part of a later-described extended portion of the housing-side rail member 12. Although the engaging portions 12B provided on the upper and lower wall portions 12E are engaged with and attached to the housing 10, the upper and lower wall portions 12E may be directly joined to the housing. The upper and lower wall portions 12A extend vertically upward from near the ends of the left and right wall portions 22C, and the upper end portions thereof are horizontally bent in the direction of the wall portion 22B to form left and right wall portions 12B. At a position closer to 22B, it is further bent in the direction of the wall 22A to form upper and lower walls 12C, which are separated from the wall 22A.
[0013]
On the other hand, the lower end portion of the wall portion 12A is near the height position of the wall portion 22C, and preferably, is positioned lower than the wall portion 22C, and extends horizontally in the direction of the housing 10 in a bent shape so as to be left and right. A wall portion (first extending portion) 12D is formed, and an end portion of the wall portion is vertically extended in a bent shape to form an upper and lower wall portion (second extending portion) 12E. It may be stretched vertically downward. As described above, the housing-side rail member 12 is separated from the drawer-side rail member 22 and has no contact portion. In order to maintain such a separated state, a unit body whose side view is shown in FIG. 3 is inserted into the drawer side rail member.
[0014]
The cross-sectional shape of the holding member 30, which is the main body of the unit body, has a cross-sectional shape that can insert the walls 12B and 12C of the housing-side rail member 12 and can be inserted inside the drawer-side rail member. Its cross-sectional shape is shown in FIG. Rollers R1, R2, R3, R4 as rolling elements disposed at four locations are mounted on the holding member. That is, in FIG. 2, the upper roller R1 rotates about a horizontal axis C1, the lower roller R2 rotates about another horizontal axis C2, and the upper roller R3 rotates about a vertical axis C3. The lower roller R4 rotates around another vertical axis C4.
[0015]
The roller R1 has a size substantially extending between the walls 12B and 22A, and the roller R2 has a size substantially extending between the walls 12B and 22C. Therefore, vertical play between the drawer side rail member and the housing side rail member can be prevented. The roller R3 has a size substantially extending between the wall portions 12C and 22D, and the roller R4 has a size substantially extending between the wall portions 12A and 22B. Therefore, it is possible to prevent back and forth play between the drawer side rail member and the housing side rail member.
[0016]
The roller R1 is attached to the front and back of the holding member 30 by three, the roller R2 is attached to the front and rear, two by two, the roller R3 is attached to the front and back by one, and the roller R4 is attached to the front and back one by one. Only one may be provided before and after, or one for all four types.
[0017]
The inner dimension in the vertical direction of the drawer-side rail member 22 needs to be a dimension in which the diameter of each of the rollers R1 and R2 and the thickness of the wall portion 12B are combined. However, the inner dimension in the left-right direction may be smaller than the sum of the diameters of the rollers R3 and R4 and the thickness of the wall 12C (or 12A). That is, it is sufficient to make the width smaller by the width dimension Δ of the wall 12B. Therefore, the width of the drawer-side rail member 22 can be reduced in the storage space for storing the drawers provided inside the housing 10, and the inner size of the drawer in the left-right direction can be increased as much as possible. .
[0018]
Further, if the drawer is pulled out, the unit body inserted into the drawer-side rail member 22 may be seen from the gap opening between the wall portions 22C and 22D. Further, there is a possibility that dirt on the rail member 22 may adhere to the user. Therefore, in the case of this example, the wall 28 (plate-like member) which is attached to the drawer 20 and which is located on the housing side of the wall 22D and extends below the lower end of the wall 22D is indicated by a two-dot chain line. If provided, the unit body can be hidden and the user can be prevented from contacting the drawer side rail member. It is preferable that the lower end of the wall portion 28 reach near the horizontal height position of the wall portion 22C.
[0019]
As described above, in the above-described embodiment, the walls of the drawer-side rail member 22 extend in a bent shape at a right angle, but the angle between these walls is not limited to a right angle. Further, each wall of the housing-side rail member 12 also extends in a bent shape at a right angle, but the angle between these wall portions is not limited to a right angle.
[0020]
Further, the drawer-side rail member 22 may be mounted so as to face the bottom surface instead of the side surface of the drawer. That is, assuming that the surface 20H in FIG. 2 is a bottom surface, in this case, the height of the rail member 22 can be reduced by Δ. Therefore, the depth dimension of the drawer can be increased. In this case, for example, depending on the mounting position of the guide rail, such as a position near the center of the left and right width of the drawer, the wall 28 can be omitted without aesthetic and dirt prevention problems. The mounting position of the wall portion 28 may be on the side surface of the drawer or on the bottom surface.
In addition, the drawer as a mounting object of each of the two rail members 22 and 12 and the housing can be exchanged.
In the above embodiment, there is one rail member on the drawer side and one rail member on the storage body side, but the present invention is not limited to this.
[0021]
FIG. 4 is a main part side view of the single guide rail when the drawer is pulled out to the frontmost position. The drawer-side rail member 22 moves back and forth together with the drawer, and accordingly, the inserted unit moves at half the speed of the rail member 22. Due to the presence of the rollers, each moving member can move with smooth rolling friction. When the drawer is pulled out, the unit body stops when the front end portion 30F of the holding member 30 of the unit body comes into contact with the stop portion (first engagement portion) 12FS provided on the rail member 12.
[0022]
However, if the drawer is pulled more strongly, the rail member 22 may move forward by sliding friction with each roller of the unit body together with the drawer, and may slide forward while the unit body is stopped and fall. In order to prevent this, as shown in FIG. 1, the forward stop 22HS provided near the rear end of the rail member 22 is configured to contact the rear end 30R of the holding member 30. That is, the forward stop body 22HS is configured to abut the rear end 30R of the holding member 30 almost simultaneously with the front end 30F of the holding member 30 of the unit body abutting the stop 12FS provided on the rail member 12. ing.
[0023]
When the drawer is to be stored, the rear end of the holding member 30 comes into contact with a stop (second engagement portion) 12RS provided at an appropriate position of the rail member 12, and the unit body stops. However, if the drawer is further strongly pressed, the rail member 22 together with the drawer does not retreat by rolling friction with each roller of the unit body, but retreats by sliding while the unit body is stopped, and there is a space behind. Falls. In order to prevent this, as shown in FIG. 1, the retreat stop 22SS provided at an appropriate position on the rail member 22 is configured to abut on the front end of the holding member 30. That is, almost at the same time that the rear end of the holding member 30 comes into contact with the stop portion 12RS of the rail member 12 and the unit body stops, the retreat stop 22SS of the rail member comes into contact with the front end of the holding member. ing.
As described above, the present application can be applied to a table and the like in addition to the drawer.
Although there are portions that are duplicated, the items described in the different embodiments can be applied to other embodiments unless there is a particular contradiction.
[0024]
【The invention's effect】
As is apparent from the above description, according to the present invention, it is possible to provide a single guide rail having a structure capable of operating smoothly and reducing the width of the rail.
[Brief description of the drawings]
FIG. 1 is a side view of a single type guide rail according to the present invention.
FIG. 2 is an enlarged transverse sectional view taken along line BB of FIG.
FIG. 3 is a side view of the unit body.
FIG. 4 is a side view of an essential part of the single guide rail in an extended state.
[Explanation of symbols]
10. Housing (housing)
12 Chassis side rail member (the other rail member)
20 Drawer 22 Drawer side rail member (one rail member)
30 holding members R1, R2, R3, R4 rolling elements

Claims (3)

A single-type guide rail having a rail provided on a drawer side of furniture such as a cabinet and a rail provided on a storage body side having a relative movement relation to the rail,
One of the rail members has, in its cross section, a first wall portion, a second wall portion extending in a bent shape at one end of the first wall portion, and a first wall portion also at the other end portion. A fourth wall portion that is bent in the same direction as the second wall portion, and a second wall portion that is bent to the same side as the first wall portion with respect to the second wall portion at an extension destination end portion; A third wall portion that extends in a shape and is separated from the fourth wall portion.
The other rail member has, in its cross section, an A wall portion extending from the third wall portion side to the first wall portion, and an end portion of the A wall portion close to the first wall portion. A B wall extending toward the second wall, a C wall extending from the end of the B wall close to the second wall toward the first wall, and a continuous A wall. And an extending portion extending outward of the one rail member.
The one rail member and the other rail member are spaced apart from each other with a gap therebetween, and are inserted into the one rail member and insert the B wall portion and the C wall portion of the other rail member. A holding member having a cross-sectional shape, a first rolling element mounted on the holding member, and rolling substantially across the opposing wall surfaces of the first wall portion and the B wall portion, a third wall portion and a B wall portion A second rolling element that rolls substantially across the opposing wall surfaces of the third wall, a third rolling element that rolls substantially between the opposing wall surfaces of the fourth wall section and the C wall section, A single-type guide rail comprising a combination of the above two rail members including a fourth rolling element that rolls substantially across a wall portion facing a wall portion. The one rail member is attached to the drawer body side, the other rail member is attached to the storage body side, and the plate-shaped member attached to the drawer body side and arranged to substantially cover the one rail member from the outside. The simple guide rail according to claim 1, further comprising: The front end of the drawer of the holding member contacts the first engagement portion provided at a predetermined position of the other rail member to cause a sudden rise in pullout resistance, and the end of the drawer rear is The single guide rail according to claim 1, wherein the single guide rail comes into contact with a second engagement portion provided at another predetermined position of the other rail member to cause a sudden increase in push-in resistance.

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