JP3084768U - Rear lock structure of rail - Google Patents

Abstract

(57) [Summary] (Problem corrected) [Problem] To lock a middle roll in a fixed position when an inner roll of a three-stage slide rail is extended, and to provide a lock structure at a rear stage of the rail that can easily extend and contract the slide rail. provide. An inner rail is fixed to a wall of a furniture and includes an outer rail in which a middle rail is slidably inserted and an inner rail inserted in the middle rail. The positioning body 2 of the locking body 15 and the positioning piece 24 that abuts
The middle rail has a locking hole 14 to be engaged with, and the middle rail has an action piece 25 having an action of pushing up the positioning leg of the positioning piece by pressing force between the inner rail and the positioning piece by contact with the inner rail.
And a locking body 18 with which the locking member 33 of the inner roll abuts. When the drawer is extended, the inner rail moves on the middle rail until the locking member abuts the locking body, releasing the pressing force applied to the active piece. Next, the middle rail is extended, and the localization legs of the localization piece engage with the locking holes of the outer rail and are locked.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a lock structure for a rail, and is particularly used for a slide rail having an inner rail, a middle rail, and an outer rail. The present invention relates to a rear lock structure of a rail that can be maintained in a position.

[0002]

[Prior art]

 Conventionally, this type is as follows.

[0003] Conventional three-stage slide rails typically include an outer member, an intermediate member, and an inner member. Take for example the cabinet or the slide rails used for the drawers, of which the outer rail is fixed to the cabinet, the inner rail is fixed to both sides of the drawer, and the middle rail is housed in the outer rail. Inner rail can be installed. The three members can be connected to each other by connecting means (usually a ball bearing design), and can reciprocate the inner rail and the middle rail with respect to the outer rail along the same axial direction. In this way, the drawer can be movably pulled out of the cabinet by the slide rail or pushed back for storage inside the cabinet.

In an exploded perspective view of the conventional three-stage drawer rail structure shown in FIG. 7, the conventional three-stage drawer rail structure mainly includes an outer rail 91, a middle rail 92 and an inner rail 93. Since a plurality of rolling balls 94 are provided between the middle rail 92 and the inner rail 93, the fitted inner rail 93 can move smoothly, and at the same time, its three-stage drawer rail structure. In order to further facilitate assembly, the inner rail 93 is provided with a locking member 95. The locking member 95 is formed with elastically openable and closable legs 96, and the middle rail 92 is provided with a locking body 97. The locking body 97 is formed with a protruding locking portion 971. When the inner rail 93 is pulled out after the inner rail 93 is fitted into the middle rail 92, the protruding portion 951 of the locking member 95 is engaged. Since the inner rail 93 is formed so as to be locked with the locking portion 971 of the stop body 97, it is possible to prevent the inner rail 93 from coming out of the middle rail 92. As described above, the protrusion 951 of the locking member 95 and the locking portion 971 of the locking body 97 form a localization structure that can prevent the locking member 95 from being detached outside.

[0005]

[Problems to be solved by the invention]

 Regarding the above-described conventional three-stage drawer rail structure, the localization structure can prevent the inner rail 93 from detaching from the middle rail 92 when the drawer is pulled out. Since the inner rail 93 cannot be prevented from being retracted into the middle rail 92, when the user uses the above-described three-stage drawer rail structure, the above-mentioned rail is unexpectedly moved by an elbow or an external object. If you touch the inner rail, there is a problem that it is very inconvenient to use because the inner rail shrinks into the middle rail.

The present invention has been devised in view of such a problem, and an object thereof is to lock the middle rail in a fixed position when the inner rail of the slide rail extends an appropriate distance. The slide rail is intended to provide a rear lock structure of the rail which can be easily and smoothly extended and contracted.

[0007]

[Means for Solving the Problems]

 To achieve the above object, the rear lock structure of the rail according to the present invention is as follows. That is, the rear-stage lock structure of the rail is composed of the outer rail, the middle rail, and the inner rail. The outer rail is provided with two upper and lower lip sides, a stop plate is provided at one end of the outer rail, and a locking hole and a locking body are provided on the outer rail itself. The middle rail is provided with two upper and lower lip sides, which are inserted so as to move within the lip side of the outer rail, and one end of the middle rail is provided with a projection for abutting against the locking member of the outer rail. (22) is protruded. The middle rail itself can be connected to the positioning member by the positioning member, and the positioning member has one or more protruding positioning legs. The stereotactic legs can be fitted into the locking holes in the outer rail. An active plate is operatively connected between the localization piece and the middle rail, and the active plate has a protruding piece for fitting into a locking hole formed in the localization piece, and is provided at the other end of the localization piece. Is provided with wing pieces, and a locking body protrudes from the middle rail itself. The inner rail is provided with two upper and lower lip sides, which are inserted so as to move within the lip side of the middle rail, and a stop edge is formed at one end of the inner rail, and the stop edge is connected to the middle rail. The inner rail is provided with a locking member for abutting against the locking member of the middle rail.

Further, the rear lock structure of the rail according to the present invention can be configured as follows. 1. Slides are mounted on the lip side between the outer rail and the middle rail and on the lip side between the middle rail and the inner rail. 2. The activity plate is formed in a substantially rectangular shape.

[0009]

[Embodiment of the invention]

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a rear lock structure of a rail according to an embodiment of the present invention. The slide rail of the present invention is mainly composed of members such as an outer rail 1, a middle rail 2 and an inner rail 3. .

The outer rail 1 is provided with two upper and lower lip sides 11, and between the two lip sides 11, a middle rail is used to insert and move, and between the outer rail 1 and the middle rail 2. Is loaded with a slide 12. In the best embodiment, the slide 12 can be made of a sphere, such as a steel ball, so that the best sliding is formed between the two. A stop plate 13 is provided at one end of the outer rail 1 so that the middle rail 2 can be prevented from coming off by the stop plate 13, and a lock hole 14 and a lock body 15 are formed in the outer rail 1 itself. Provided.

The middle rail 2 is inserted so as to move into two upper and lower lip sides 11 of the outer rail 1, and the middle rail 2 has upper and lower two lip sides 11 corresponding to the two lip sides 11 of the outer rail. Each lip side 21 is provided, and the sliding between the outer rail 1 and the middle rail 2 can be made relatively smooth by inserting the slide 12 between the two lip sides 21. After the middle rail 2 moves, the middle rail 2 can be stopped from moving by abutting against the locking member 15 of the outer rail 1 by the projection 22. One end of the middle rail 2 can be connected to the localization piece 24 and the active plate 25 by the localization member 23. The localization piece 24 has one or more protruding localization legs 241 protruding therefrom. One or more other locking holes 242 can be formed in the positioning member 24 so as to fit into the locking holes 14. The active plate 25 is formed in a substantially rectangular shape, and the active plate 25 is operatively connected between the localization piece 24 and the middle rail 2, and one end of the active plate 25 has a lock formed in the localization piece 24. Since one or more protruding pieces 251 for fitting into the holes 242 are protruded, the active plate 25 does not escape. The other end of the active plate 25 is provided with wing pieces 252 projecting obliquely, and the wing pieces 252 can be pressed by the inner rail 3. When the wing piece 252 of the active plate 25 is pressed against the inner rail 3, the projecting piece 251 protruding from the active plate 25 can press the localization piece 24, so that the localization leg 241 of the localization piece 24 moves to the outer rail. It can be separated from one locking hole 14.

The inner rail 3 is provided with two upper and lower lip sides 31 and is inserted so as to move into the lip side 21 of the middle rail 2, and slides 27 between the inner rail 3 and the middle rail 2. By loading, the sliding between the inner rail 3 and the middle rail 2 can be relatively smooth. A stop edge 32 is formed at one end of the inner rail 3, and the stop edge 32 can be pressed against a wing 252 of the active plate 25 connected to the middle rail 2. The inner rail 3 is provided with a locking member 33 for contacting the locking body 28 of the middle rail 2, so that the inner rail 3 can be prevented from detaching from the middle rail 2.

FIGS. 2 and 3 are a front view and a sectional view, respectively, showing a state in which the rail is engaged with the minimum length of the rear-stage locking structure of the rail according to the embodiment of the present invention. Since the wing pieces 252 of the active plate 25 are formed so as to be pressed against each other, the protruding pieces 251 projecting from the active plate 25 are formed so as to abut against the localization pieces 24, and the localization legs 241 of the localization pieces 24 are outside. It is formed so as to be attached to the inner surface of the rail 1.

FIGS. 4 and 5 are a front view and a cross-sectional view, respectively, showing a state in which the rear lock structure of the rail according to the embodiment of the present invention is engaged with the maximum length of the rail. The inner rail 3 is formed to move along the inner rail 3 at the same time that the inner rail 3 extends in length relative to the outer rail 1 because the inner rail 3 is pressed against the stop edge 32 of the inner rail. The middle rail 2 is formed to stop when the projection 22 of the outer rail 1 comes into contact with the locking body 15 of the outer rail 1. Further, the inner rail 3 can continue to be pulled with respect to the outer rail 1. At this time, since the retaining edge 32 of the inner rail 3 does not press the wing piece 252, the positioning piece 24 is positioned by its own elasticity. Since the legs 241 can be fitted into the locking holes 14 of the outer rail 1, the middle rail 2 stops at a fixed position until the locking member 33 of the inner rail 3 presses the locking body 28 of the middle rail 2. The maximum length of the three-stage slide rail is formed at this time. The locking member 33 can be made of various conventional structures, and the locking member 33 can be formed so as to prevent the slide rail from contracting due to unexpected collision.

FIG. 6 is a cross-sectional view of the rail according to the embodiment of the present invention when it is about to contract from the maximum length of the rear locking structure. First, the stop edge 32 of the inner rail 3 is set to the active plate of the middle rail 2. 25 comes into pressure contact with the wing pieces 252 provided on the active plate 25, and then the protruding pieces 251 protruding from the active plate 25 press the localization pieces 24, and further, the localization legs 241 of the localization pieces 24 become outer rails. The inner rail 3 is contracted with the middle rail 2 until the inner rail 3 moves away from the locking hole 14 of the first rail 1 so that the middle rail 2 is interlocked with the inner rail 3. Is simultaneously contracted into the outer rail 1 until it comes into contact with the stopper plate 13 of the outer rail 1.

[0017]

[Effect of the invention]

 According to the present invention, when the inner rail and the middle rail are pulled to the maximum length, the stop edge of the inner rail comes into contact with the wing piece provided on the active plate of the middle rail first, so that The rails can be interlocked so as to extend at the same time, and are formed so that the projections protruding from the middle rail stop when they come into contact with the locking members of the outer rail. It is formed so as to be positioned and locked by being fitted into the locking hole of the horn. Also, when the three-stage slide rail is about to contract from its maximum length, the stop edge of the inner rail can be pressed against the wing piece provided on the active plate of the middle rail, so that it protrudes from the localization piece. The positioning piece is pushed up by the provided protruding piece, whereby the positioning leg of the positioning piece is formed so as to be separated from the locking hole of the outer rail. As described above, the middle rail can be contracted with respect to the outer rail, so that there is an advantage that the extension or contraction of the three-stage slide rail becomes simpler and more convenient.

The present invention may be embodied in other ways without departing from its spirit and essential characteristics. Accordingly, the preferred embodiments described herein are illustrative and not limiting.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a rear lock structure of a rail according to an embodiment of the present invention.

FIG. 2 is a front view of the rear lock structure of the rail according to the embodiment of the present invention, which is engaged with a minimum length.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a front view of the rear lock structure of the rail according to the embodiment of the present invention, which is engaged with the maximum length.

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

FIG. 6 is a cross-sectional view of the rear lock structure of the rail according to the embodiment of the present invention when it is about to contract from the maximum length.

FIG. 7 is an exploded perspective view of a conventional three-stage drawer rail structure.

[Explanation of symbols]

Reference Signs List 1 outer rail 11 lip side 12 slide 13 stop plate 14 locking hole 15 locking body 2 middle rail 21 lip side 22 projection 23 positioning member 24 positioning piece 241 positioning pin 242 locking hole 25 active plate 251 projecting piece 252 wing piece 26 Slot 27 Slide 28 Lock body 3 Inner rail 31 Lip side 32 Stop edge 33 Lock member

Claims (3)

[Utility model registration claims] 1. A rear-stage locking structure for a rail constituted by an outer rail (1), a middle rail (2) and an inner rail (3), wherein the outer rail (1) has two upper and lower lip sides ( 11), a stop plate (13) is provided at one end of the outer rail (1), and a locking hole (14) and a locking body (15) are provided in the outer rail (1) itself. The middle rail (2) is provided with two upper and lower lip sides (21) and is inserted so as to move within the lip side (11) of the outer rail (1). Outer rail (1)
A projection (22) is provided to abut against the locking body (15) of the center rail, and the middle rail (2) itself can be connected to the positioning member (24) by the positioning member (23).
4) is provided with one or more protruding positioning legs (241), and the positioning legs (241) are provided with locking holes (1) for the outer rail (1).
4), an activity plate (25) is connected freely between the stereotactic piece (24) and the middle rail (2),
The active plate (25) is provided with a protruding piece (251) for fitting into a locking hole (242) formed in the localization piece (24), and the other end of the localization piece (24) has a wing piece. (252) is provided, a locking body (28) is projected from the middle rail (2) itself, and two upper and lower lip sides (3
1) is provided and inserted so as to move into the lip side (21) of the middle rail (2), and a stop edge (32) is formed at one end of the inner rail (3), and the stop edge (32) is formed. 32) is a wing piece (25) of the active plate (25) connected to the middle rail (2).
The inner rail (3) is provided with a locking member (33) for abutting against the locking body (28) of the middle rail (2). Construction. 2. A slide (12) is provided on the lip side (11) between the outer rail (3) and the middle rail (2) and the lip side (21) between the middle rail (2) and the inner rail (1). , 2
The rear-stage lock structure according to claim 1, wherein 7) is inserted. 3. The rear locking structure according to claim 1, wherein said active plate is formed in a substantially rectangular shape.