JP4155451B2 - Single guide rail - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guide rail used for reducing friction when pulling out drawers and tables such as office furniture and household furniture such as cabinets, etc., and relates to a so-called single guide rail in which a solid side and a moving side are combined. The drawer body of the present application represents a general object to be pulled out, and includes a drawer, a table to be pulled out, and the like.
[0002]
[Prior art]
Conventionally, single or double guide rails incorporating individual rollers have been used to draw out particularly heavy objects, such as cabinet drawers, smoothly. Patent Document 1 below discloses a slide rail incorporating a unit component in which a plurality of rollers (including a disk-like member) are mounted on a retainer instead of an individual roller.
[Patent Document 1]
Japanese Patent No. 3354737 [0003]
[Problems to be solved by the invention]
Enlarging the drawer as much as possible with respect to the size of the casing, which is the drawer storage body, is a natural proposition considering the compactness of the furniture. Although it is possible to provide a smoothly operating slide rail that prevents backlash, there is room for improvement in achieving this compactness. In addition, when the inner rail is attached to the drawer side, the rail member has a predetermined gap, so that when it is attached to the drawer side and pulled out, the unit parts installed inside may be seen from the outside. Besides being detrimental to beauty, it is a sliding member, so that, for example, grease may be attached, and hands and clothes may be soiled.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a single-type guide rail having a structure that can be operated smoothly and that can reduce the width of the rail and make it compact.
Another object of the present invention is to prevent dirt from being attached to the user while keeping the beauty when the drawer is pulled out.
[0004]
[Means for Solving the Problems]
In view of the above object, in claim 1, a single-type guide rail having a rail provided on a drawer body side of furniture such as a cabinet and a rail provided on a storage body side which is in a relative movement relationship with respect to the rail, In the cross section, 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. 4th wall part extended in the shape of a bend on the same side as 2 wall parts, and the extended shape side end part of the 2nd wall part, it is bent in the same side as the 1st wall part to this 2nd wall part And the third rail portion is separated from the fourth wall portion, and the other rail member has a cross section extending from the third wall portion side toward the first wall portion side. A wall portion extending in this manner, a B wall portion extending from the end portion of the A wall portion close to the first wall portion toward the second wall portion, and the B wall portion A C wall portion extending from the end portion close to the second wall portion toward the first wall portion, and an extending portion extending outward of the one rail member continuously to the A wall portion, The one rail member and the other rail member are spaced apart from each other and are inserted into the one rail member, and the B wall portion and the C wall portion of the other rail member are inserted. A holding member having a cross-sectional shape, a first rolling element mounted on the holding member and rolling substantially between 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 between the opposing wall surfaces, a third rolling element that rolls substantially between the opposing wall surfaces of the fourth wall portion and the C wall portion, a second wall portion and A. There is a combination of two rail members including a fourth rolling element that rolls substantially between wall surfaces facing the wall portion. To provide a Doreru.
One and the other rail members are not limited to one each. In the case of a plurality of rolling elements, there is an effect that the number of rolling elements (the holding member to which is mounted) is increased, the load is dispersed, and the durability of the guide rail is improved.
[0005]
Since a rolling element is provided between each inner wall surface of one rail member having the above shape and each of the A, B, and C wall portions of the other rail member, one rail member is provided. When moving relative to the other rail member, it becomes a movement due to rolling friction and can be moved with a small force, and is restrained in a two-dimensional direction via each rolling element so that play can be regulated and smooth operation is possible. It becomes. More importantly, the third rolling element and the fourth rolling element are separated from the other rail member by a C wall portion and an A wall portion separated by the extending length (width) of the B wall portion. Each of the rolling elements overlaps with each other in the width direction according to the width of the B wall, so that one rail member can be made compact and the guide rail is compact. become.
[0006]
According to a second aspect of the present invention, the one rail member is attached to the drawer body side, the other rail member is attached to the storage body side, and the rail member is attached to the drawer body side so as to 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. Therefore, when the rail member is attached to the drawer body side and pulled out, the gap Although the internal mechanism can be seen through the opening and the appearance may be impaired, this can be prevented by the presence of the plate-like member, and the drawer body side rail member may be attached with grease, for example. And clothes can be prevented from touching.
[0008]
According to a third aspect of the present invention, the end of the holding member on the front side of the drawer body comes into contact with the first engaging portion provided at a predetermined position of the other rail member to cause a sudden rise in the drawing resistance, and the drawer body rear side The single-type guide rail according to claim 1 or 2, wherein an end of the abutting portion abuts on a second engaging portion provided at another predetermined position of the other rail member to cause a sudden increase in pushing resistance.
If the holding member, which is an essential member, is used to bring about a sudden increase in the resistance of the drawer body to be pulled out and pushed in, the drawer body can be temporarily stopped and the mechanism is simple.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail based on an embodiment shown in the accompanying drawings.
FIG. 1 is a side view of a single guide rail according to the present invention, and FIG. 2 is an enlarged cross-sectional view taken along line BB, but the unit body described later in FIG. 2 shows a state cut by a simple plane. It is not shown, but is a figure for clearly showing the roller. This is a rail mechanism that guides in the horizontal direction when the cabinet 20 is taken as an example of furniture and the drawer 20 as the drawer is inserted into and removed from the housing 10 as the storage body in the horizontal direction. However, it is within the scope of the present application to guide other than the horizontal direction such as the vertical direction.
[0010]
The guide rail mechanism will be described mainly with reference to FIG. One rail member 22 is a drawer side rail member mounted on the drawer 20 in this example. For example, a bracket 20B provided on the side surface 20H of the drawer is connected to the left and right (direction) flat wall portions 22A of the drawer side rail member 22. (First wall portion) (hereinafter, flat plate shape is omitted with respect to various wall portions) is engaged with the engaging portion 22F and attached to the drawer, but may be directly attached to the drawer side wall. . At the left and right end portions of the left and right wall portions, the upper and lower (direction) wall portions 22D (fourth wall portion) and 22B (second wall portion) are formed in a bent shape at right angles, and the upper and lower sides on the drawing side 20H side At the lower end of the wall portion 22B, the left and right (direction) wall portions 22C (third wall portions) are formed 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 width than the left and right wall portions 22A, and the upper and lower wall portions 22D have a smaller width than the upper and lower wall portions 22B. Accordingly, there is a gap opening between the left and right wall portions 22C and the upper and lower wall portions 22D. In order to ensure the gap opening, if either one of the left and right wall portions 22C and the upper and lower wall portions 22D is small, the other may be the same as or longer than the wall portions 22A and 22B. Furthermore, in this example, in the drawer-side rail member 22, each wall portion extends in a bent shape at a right angle, but in this application, the angle between these wall portions is not limited to a right angle. At such a general angle, it is sufficient if there is a gap opening between the wall portions 22D and 22C, and the relationship of the width dimension as described above is unnecessary.
[0012]
Returning to the example of FIG. 2, the other rail member 12 is a case-side rail member that is attached to the case 10 in this example, and is, for example, a part of a later-described extending portion of the case-side rail member 12. Although the engaging portion 12B provided on the upper and lower wall portions 12E is 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 are extended 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 portions 22B to form the left and right wall portions 12B. At a position approaching 22B, it is further bent in the direction of the wall portion 22A to form an upper and lower wall portion 12C, which is separated from the wall portion 22A.
[0013]
On the other hand, the lower end portion of the wall portion 12A is close to the height position of the wall portion 22C, and is preferably positioned lower than the wall portion 22C and extends horizontally in the direction of the housing 10 in a bent shape. A wall portion (first extending portion) 12D is formed, and an end portion of the wall portion (first extending portion) is bent vertically upward to form an upper and lower wall portion (second extending portion) 12E. You may extend | stretch vertically downward. As described above, the housing-side rail member 12 is separated from the drawer-side rail member 22, and there is no contact portion. In order to maintain such a separated state, the 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 that is the main body of the unit body has a cross-sectional shape that allows the wall portions 12B and 12C of the housing-side rail member 12 to be inserted and inserted into the drawer-side rail member. Its cross-sectional shape appears in FIG. Rollers R1, R2, R3, and 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 the horizontal axis C1, the lower roller R2 rotates about the other horizontal axis C2, and the upper roller R3 rotates about the vertical axis C3. The lower roller R4 rotates around the other vertical axis C4.
[0015]
The roller R1 has a size substantially extending between the wall portions 12B and 22A, and the roller R2 has a size approximately extending between the wall portions 12B and 22C. Therefore, it is possible to prevent vertical play between the drawer side rail member and the housing side rail member. The roller R3 has a size almost extending between the walls 12C and 22D, and the roller R4 has a size almost extending between the walls 12A and 22B. Therefore, backlash in the left-right direction between the drawer-side rail member and the housing-side rail member can be prevented.
[0016]
Three rollers R1 are attached to the front and rear of the holding member 30, two rollers R2 are attached to the front and rear, one roller R3 is one to the front and rear, and one roller R4 is one to the front and rear. Only one piece may be provided at the front and back, or all of the four types may be provided one by one.
[0017]
The inner dimension in the vertical direction of the drawer-side rail member 22 needs to be a dimension in which the diameters of the rollers R1 and R2 are combined with the plate thickness of the wall 12B. However, the inner dimension in the left-right direction may be smaller than the dimension obtained by combining the diameters of the rollers R3 and R4 and the thickness of the wall 12C (or 12A). In other words, the wall portion 12B may be reduced by the width dimension Δ. Therefore, in the storage space for storing the drawer provided inside the housing 10, the width of the drawer-side rail member 22 can be reduced, and the inner dimension of the drawer in the left-right direction can be increased as much as possible. .
[0018]
Moreover, if the drawer is pulled out, the drawer-side rail member 22 may show a unit body inserted therein through a gap opening between the wall portions 22C and 22D. Moreover, there is a possibility that dirt on the rail member 22 may adhere to the user. Therefore, the wall portion 28 (plate-like member) indicated by a two-dot chain line that is attached to the drawer 20 and is located on the housing side of the wall portion 22D and extends downward from the lower end of the wall portion 22D in this example. 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 reaches near the horizontal height position of the wall portion 22C.
[0019]
As already described, each wall portion of the drawer-side rail member 22 extends in a bent shape at a right angle in the above embodiment, but the angle between these wall portions is not limited to a right angle. Moreover, although each wall part of the housing side rail member 12 is also extended in the shape of a right angle, the angle between these wall parts is not restricted to a right angle.
[0020]
Furthermore, you may mount | wear with the drawer side rail member 22 so that it may face not the side of a drawer but the bottom face. That is, considering the surface 20H in FIG. 2 as the bottom surface, in this case, the height dimension 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, a position closer to the center of the left-right width of the drawer can be configured without any problem in terms of aesthetics and prevention of dirt even if the wall portion 28 is not provided depending on the mounting position of the guide rail. Further, the mounting position of the wall portion 28 may be the side surface of the drawer or the bottom surface.
In addition, the drawer and the housing as the attachment targets of the two rail members 22 and 12 can be interchanged.
In the above embodiment, there is one rail member on the drawer side and one on the storage body side, but the present application is not limited to this.
[0021]
FIG. 4 is a side view of the main part of the single guide rail when the drawer is pulled out to the foremost position. The drawer side rail member 22 moves back and forth together with the drawer, and accordingly, the inserted unit body moves at half the speed of the rail member 22. Due to the presence of the rollers, each moving member can be moved by smooth rolling friction. When the drawer is pulled out, the front end portion 30F of the holding member 30 of the unit body comes into contact with a stop portion (first engagement portion) 12FS provided on the rail member 12, and the unit body stops.
[0022]
However, if the drawer is pulled more strongly, the rail member 22 does not move forward by rolling friction with the rollers of the unit body, but may move forward by the sliding while the unit body is stopped and fall. In order to prevent this, as shown in FIG. 1, the forward stop body 22HS provided near the rear end of the rail member 22 is configured to abut on the rear end portion 30R of the holding member 30. That is, the forward stop body 22HS is brought into contact with the holding member rear end portion 30R substantially simultaneously with the front end portion 30F of the holding member 30 of the unit body coming into contact with the stop portion 12FS provided in the rail member 12. ing.
[0023]
When the drawer is housed, the rear end portion of the holding member 30 comes into contact with a stop portion (second engagement portion) 12RS provided at an appropriate position of the rail member 12, and the unit body stops. However, if the drawer is pushed more strongly, the rail member 22 together with the drawer does not move backward due to rolling friction with the rollers of the unit body, but the unit body moves backward by sliding while it is stopped, and there is a space behind Falls. In order to prevent this, as shown in FIG. 1, the retracting stop body 22SS provided at an appropriate position of the rail member 22 is configured to come into contact with the front end portion of the holding member 30. That is, the rear end of the holding member 30 comes into contact with the stop 12RS of the rail member 12 and the unit body stops almost simultaneously with the rear stop 22SS of the rail member coming into contact with the front end of the holding member. ing.
As described above, the present application can be applied to a table or the like in addition to the drawer.
Although there is a part which becomes duplication description, each matter explained in a different form example is applicable also to other form examples, as long as there is no 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 that can be smoothly operated and the width of the rail can be reduced.
[Brief description of the drawings]
FIG. 1 is a side view of a single guide rail according to the present invention.
FIG. 2 is an enlarged cross-sectional view taken along the arrow BB.
FIG. 3 is a side view of the unit body.
FIG. 4 is a side view of an essential part of a single guide rail in a pulled-out state.
[Explanation of symbols]
10 Housing (container)
12 Housing 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 which is in a relative movement relation to the rail,
One 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 first wall portion at the other end portion in the cross section. Bent on the same side as the first wall portion with respect to the second wall portion at the fourth wall portion extending in a bent shape on the same side as the second wall portion and on the extending side end portion of the second wall portion A third wall portion extending in a shape and spaced apart from the fourth wall portion,
The other rail member has an A wall portion extending from the third wall portion side toward the first wall portion side and an end portion of the A wall portion close to the first wall portion in the cross section thereof. Continuous to the A wall portion, the B wall portion extending toward the second wall portion, the C wall portion extending from the end portion of the B wall portion close to the second wall portion toward the first wall portion, and the A wall portion 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 and are inserted into the one rail member, and the B wall portion and the C wall portion of the other rail member are inserted. A holding member having a cross-sectional shape, a first rolling element mounted on the holding member and rolling substantially between 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 between the opposing wall surfaces, a third rolling element that rolls substantially between the opposing wall surfaces of the fourth wall portion and the C wall portion, a second wall portion and A. A single-type guide rail comprising a combination of the above two rail members including a fourth rolling element that rolls substantially between wall surfaces facing the 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 a plate-like member attached to the drawer body side and disposed so as to cover one rail member from the outside is provided. The single-type guide rail according to claim 1, further comprising: The end of the holding member on the front side of the drawer body abuts on the first engagement portion provided at a predetermined position of the other rail member to cause a sudden rise in the pulling resistance, and the end on the rear side of the drawer body is The single-type guide rail according to claim 1 or 2, which abuts against a second engagement portion provided at another predetermined position of the other rail member to cause a sudden increase in pushing resistance.

Images