JP5749567B2 - Push type slide rail locking device - Google Patents

Description

The present invention relates to a push slide rail locking device used for drawers and the like.

Conventionally, the operation of pushing in the storage direction brings the moving side rail into the locked state, and the operation of pushing the moving side rail further from the locked state releases the locked state of the moving side rail. Various push-type slide rails are provided.
For example, it consists of a latch member attached to the rear end of the fixed side rail and a locking pin formed on the moving side rail. The latch member is in a state where the moving side rail is housed and locked in the fixed side rail. A pressing spring that always applies a biasing force in the direction of pushing the moving side rail from the fixed side rail, and an automatic locking member that moves up and down with the movement of the locking pin. And a stopper protrusion located at a predetermined interval on the storage side of the guide protrusion, the guide protrusion from a push-down guide surface inclined upward from the drawer side to the storage side, and a drawer-side end portion of the push-down guide surface A push-up guide surface that slopes upward toward the storage side at a gentle angle from the push-down guide surface, and a substantially heart-shaped sideways shape from a locking recess recessed on the drawer side formed between the push-down guide surface and the storage-side end of the push-up guide surface The stopper protrusion has a guide stopper surface that protrudes in the drawer side direction with a predetermined interval on the storage side of the locking recess, and has a guide stopper surface on the upper surface that the drawer side is inclined downward. With the biasing force applied, the tip of the pull-down guide surface on the pull-out side is located below the passing line of the locking pin, and the end of the push-up guide surface on the storage side The end of the guide stopper surface on the drawer side with the locking pin locked in the locking recess and the moving rail locked to the fixed rail Some parts are located above the locking pins. (For example, refer to Patent Document 1.)

In a state where the moving side rail is not locked to the fixed side rail, a biasing means (usually a spring) is used to hold the automatic locking member at a predetermined position (may be a locking pin). ) Was needed.
Therefore, it takes time and labor to incorporate the urging means and the cost of the urging means itself, which increases the cost as a whole.

JP 2007-330686 A

SUMMARY OF THE INVENTION It is an object of the present invention to provide a push-type slide rail locking device that not only reduces costs as a whole by reducing the number of members and facilitating assembly of members, but also ensures operability. And

Therefore, in order to solve the above-mentioned problem, the present invention is configured as the first means in that the moving side rail pushed in the storing direction is set to the locked state, and the moving side rail pushed further from the locked state is set. A push-type slide rail comprising a latch member attached to the storage side end of the fixed rail and a guide member attached to the storage side end of the moving rail and detachable from the latch member. In this locking device, the latch member includes a push spring that pushes the movable rail released from the locked state to a predetermined position, and a lock pin that is slidable in the vertical direction and is detachable from the guide member. It consists of a retaining member, a retaining member that holds the push spring and the retaining member, and is connected to the storage side end of the fixed rail. The retaining state of the moving rail is released, and the guide member is pulled out of the latch member. Located in When the locking pin is engaged with and disengaged from the guide member, the elastic element that elastically holds the locking member so that the locking pin can move in the vertical direction is maintained. It is formed of a synthetic resin material integrally with the holding member.

Next, in order to solve the above-described problem, the present invention is configured as the second means. In addition to the structure as the first means, the elastic element moves away from the continuous portion with the holding member. The fixed side rail is inclined in a direction away from the board, and is elastically pressed against the board side surface of the fixed side rail of the locking member attached to the holding member.

Next, in order to solve the above-mentioned problem, the present invention is configured as a third means in which the moving side rail pushed in the storing direction is in the locked state, and the moving side rail pushed further from the locked state. A push-type slide comprising a latch member attached to the storage-side end of the fixed rail and a guide member attached to the storage-side end of the moving-side rail and detachable from the latch member. In the rail locking device, the latch member has a push spring that pushes the movable rail released from the locked state to a predetermined position, and a locking pin that is slidable in the vertical direction and detachable from the guide member. It is composed of a locking member, a holding member that holds the push spring and the locking member, and is connected to the storage side end of the fixed side rail, in a state where the locking state of the moving side rail to the fixed side rail is released, Locking pin Always elastic element to maintain a predetermined height, in which are formed by the locking member integrally with the synthetic resin material.

Next, in order to solve the above problems, the present invention is configured as the fourth means. In addition to the structure as the third means, the elastic element bulges in a semicircular shape in the left-right direction, and the holding member. It is elastically press-contacted to the left and right support surfaces of the guide fitting portion formed in the above.

According to the structure as the first means, the latch member having the latch pin and the latch member which is incorporated into the holding member by the push spring are provided at the storage side end of the fixed rail, Since the guide member that can be engaged and disengaged is simply provided on the moving side rail, the number of members is small, so the member management is easy, and there is no need other than the processing for mounting the member on the fixed side rail and the moving side rail. Therefore, a normal slide rail can be easily converted to a push-type slide rail.
Also, when the locking state of the moving rail is released and the guide member is positioned on the front side of the latch member, the height of the locking pin is maintained. The elastic element that elastically holds the locking member so that the locking pin can move in the vertical direction is formed of a synthetic resin material integrally with the holding member. Can be produced.

According to the structure as the second means, in addition to the effect of the structure as the first means, the elastic element is inclined and held away from the substrate of the fixed rail as it moves away from the connecting portion with the holding member. Since it is elastically press-contacted to the board side surface of the fixed side rail of the locking member attached to the member,
The height dimension of the latch member can be made compact as a whole without being affected by the mounting position of the elastic element.

According to the configuration as the third means, the latch member having the latch pin and the latch member which is incorporated into the holding member by the push spring are provided at the storage side end of the fixed rail, Since the guide member that can be engaged and disengaged is simply provided on the moving side rail, the number of members is small, so the member management is easy, and there is no need other than the processing for mounting the member on the fixed side rail and the moving side rail. Therefore, a normal slide rail can be easily converted to a push-type slide rail.
Also, when the locking state of the moving rail is released and the guide member is positioned on the front side of the latch member, the height of the locking pin is maintained. The elastic element that elastically holds the locking member so that the locking pin can move in the vertical direction is formed of a synthetic resin material integrally with the locking member. Can be produced.

According to the configuration as the fourth means, in addition to the effect of the configuration as the third means, the elastic element swells in a semicircular shape in the left-right direction, and on the left and right support surfaces of the guide fitting portion formed on the holding member. Since it is elastically pressed, the height dimension of the latch member is not affected by the mounting position of the elastic element or the like, and the whole can be made compact.

The perspective view of the slide rail which comprised invention of 1st Example 1 is a cross-sectional view taken along line AA in FIG. The perspective view of the state which removed the latch member of 1st Example from the fixed side rail The exploded perspective view of the state which looked at the latch member of the 1st example from the front side The exploded perspective view of the state which looked at the latch member of the 1st example from the back side (A) is a perspective view when the guide member is viewed from the front side. (B) is a perspective view when the guide member is viewed from the back side. The main part expanded sectional view of the BB line of FIG. CC main part expanded sectional view of FIG. Sectional view along line DD in FIG. Explanatory drawing which shows the state in which the guide member was located in the drawer side of the locking pin Explanatory drawing which shows the state which the guide convex part pushed up the latching pin most Explanatory drawing which shows the state in which the storage side edge part of the 1st upper wall surface was located under the latching pin. Explanatory drawing which shows the state which the latching surface latched to the latching pin Explanatory drawing which shows the state by which the latching state of the latching surface and the latching pin was cancelled | released Explanatory drawing which shows the state which the 1st push-up wall pushed up the latching pin to the predetermined position The exploded perspective view of the state which looked at the latch member of the 2nd example from the front side The perspective view of the locking member of 2nd Example.

The present invention is attached to the storage-side end portion of the fixed-side rail, in which the moving-side rail pushed in the storing direction is brought into the locked state, and the moving-side rail pushed further from the locked state is released from the locked state. In the latch device of the push type slide rail, which is attached to the storage side end of the movable rail and the guide member detachably engageable with the latch member, the latch member is moved in the unlocked state. A holding spring that pushes the side rail to a predetermined position, a locking member that has a locking pin that is slidable in the vertical direction and that is detachable from the guide member, and that holds the pressing spring and the locking member. It consists of a holding member connected to the side end, and holds the height of the locking pin when the locking state of the moving rail is released and the guide member is positioned on the drawer side of the latch member. Pin engages / disengages from guide member In some cases, the elastic element that elastically holds the locking member so that the locking pin is movable in the vertical direction is formed of a synthetic resin material integrally with the holding member, and the elastic element is a continuous portion with the holding member As it moves away from the board, it is inclined in a direction away from the board of the fixed side rail, and is elastically pressed against the board side surface of the fixed side rail of the locking member attached to the holding member.

The push slide rail locking device of the first embodiment will be described in detail below with reference to the accompanying drawings.

1 and 2, reference numeral 100 denotes a push-type slide rail, and the push-type slide rail 100 is fixed to the fixed side via the fixed side rail 1 and balls 44... Rotatably held by the ball retainer 4. The intermediate rail 2 is slidably held on the rail 1 and the moving side rail 3 is slidably held on the intermediate rail 2 via balls 54... Rotatably held on the ball retainer 5. A latch member 60 is attached to the inner surface of the rear end of the fixed rail 1, and a guide member 9 is attached to the rear end of the moving rail corresponding to the latch member 60.
The latch member 60 holds the upper and lower push springs 7 and 7, the locking member 8, the upper and lower push springs 7 and 7, and the locking member 8, and is an elastic element that is attached to the storage side end of the fixed rail 1. The holding member 6 has 80. Hereinafter, the lower left direction in FIG. 1 will be described as the drawer side and the upper right direction as the storage side.

That is, the fixed-side rail 1 is formed in a channel shape from the base plate 10 and the upper and lower bent edges 11, 11, and a plurality of balls 44 · located between the inner surfaces of the upper and lower bent edges 11, 11 and the outer surface of the intermediate rail 2. The intermediate rail 2 is slidably held via The plurality of balls 44 are rotatably held by a long flat plate-like ball retainer 4 that is approximately half the length of the fixed-side rail 1.
A stopper before the retainer (not shown) that restricts the movement range of the ball retainer 4 in the pull-out direction is formed at the pull-out side end of the substrate 10 of the fixed rail 1.

The intermediate rail 2 is substantially the same length as the fixed side rail 1 and is formed in a substantially channel shape in the same direction as the fixed side rail 1 from the base plate 20 and the upper and lower bent edges 21 and 21, and the outer surface of the upper and lower bent edges 21 and 21. The ball 44... Has an outer side ball sliding groove on which the balls 44... Roll in the sliding direction, and the balls 54. Has a ball sliding groove on the inner surface side on which the roller rolls.
The upper and lower ends of the storage side of the substrate 20 are provided with a ball retainer 4 having a drawer side end abutting against a retainer front stopper (not shown) of the fixed rail 1 when the intermediate rail 2 is pulled out to the maximum. When the retainer post-retainer stoppers 25 and 25 are formed in contact with the storage-side end portion and restrict the maximum pull-out amount of the intermediate rail 2, and the movable member 3 reaches the maximum extension state at the pull-out side end portion of the substrate 20. A ball retainer front end stopper (not shown) with which the drawer side end of the ball retainer 5 abuts is formed.

The moving side rail 3 is formed to be approximately the same length as the fixed side rail 1 and is slidable through balls 54... Held by the ball retainer 5. It is formed in a substantially C-shaped cross section from the upper and lower bent edges 31 and 31 having the ball sliding grooves of the balls 54 in the longitudinal direction of the outer surface and the substrate 30 formed by bending both ends in an outward arc shape. ing.

Then, the storage side end of the substrate 30 accommodates the ball retainer 5 in which the drawer side end abuts against a ball retainer front end stopper (not shown) of the intermediate rail 2 when the movable rail 3 is pulled out to the maximum. A ball retainer rear end stopper (not shown) is formed in contact with the side end portion and restricts the maximum pull-out amount of the moving side rail 3.

The ball retainer 5 is a strip-shaped metal plate that is about half the length of the intermediate rail 2, and has a U-shaped substrate 50 sized to be inserted between the intermediate rail 2 and the substrates 20, 30 of the moving-side rail 3. It protrudes in an L shape from both ends of the substrate 50, and is formed in a substantially U-shaped cross section from upper and lower protruding edges 51, 51 located between the upper and lower bent edges 21, 21, 31, 31 of the intermediate rail 2 and the moving rail 3. A plurality of balls 54... Are rotatably held in the sliding direction of the upper and lower protruding edges 51, 51.

The push-type slide rail 100 is configured as described above, and the sliding of the intermediate rail 2 in the drawer side direction relative to the fixed rail 1 and the sliding of the moving rail 3 in the drawer side direction relative to the intermediate rail 2 are as follows. become.
When the intermediate rail 2 slides to the drawer side with respect to the fixed side rail 1, the ball retainer 4 also moves to the drawer side with a movement amount that is half of the movement amount of the intermediate rail 2, and eventually the drawer side end of the ball retainer 4 is moved. The portion comes into contact with a stopper before the retainer (not shown) of the fixed rail 1 and stops, and at the same time, the stoppers 25 and 25 after the retainer of the intermediate rail 2 are in contact with the stopper before the retainer (not shown). The retainer 4 comes into contact with the storage side end and stops.

On the other hand, when the moving rail 3 slides to the drawer side with respect to the intermediate rail 2, the ball retainer 5 also moves to the drawer side with a movement amount that is half the movement amount of the moving rail 3, and eventually the front end of the ball retainer 5 is moved. The ball retainer front end stopper of the intermediate rail 2 comes into contact with the stopper and stops, and the ball retainer rear end stopper of the moving rail 3 comes into contact with the storage side end of the stopped ball retainer 5 so that the moving rail 3 stops.

On the other hand, sliding in the storage side direction of the intermediate rail 2 with respect to the fixed side rail 1 and sliding in the storage side direction of the moving side rail 3 with respect to the intermediate member 2 are as follows. When the intermediate rail 2 slides toward the storage side with respect to the fixed side rail 1, the ball retainer 4 also moves to the storage side with a movement amount that is half the movement amount of the intermediate rail 2, and eventually the stopper 25 after the retainer of the intermediate rail 2 is reached. , 25 abuts against a part of the latch member 60 attached to the storage side end of the fixed rail 1, and the sliding of the intermediate rail 2 stops.

On the other hand, when the moving rail 3 slides toward the storage side with respect to the intermediate rail 2, the ball retainer 5 also moves to the storage side with a movement amount that is half of the movement amount of the moving rail 3, and eventually the drawer of the moving rail 3 is pulled out. A moving-side rail stopper 33 formed at the side end abuts against the drawer-side end surface of the intermediate rail 2 and slides toward the storage side against the elasticity of the push spring 7 along with the intermediate rail 2, The guide member 9 attached to is abutted against a part of the latch member 60, and the moving side rail 3 stops. Then, the intermediate rail 2 and the moving rail 3 are slightly pushed back by the upper and lower push springs 7 of the latch member 60, the guide member 9 is engaged with the locking member 8 of the latch member 60, and the intermediate rail 2 and the moving side are moved. The stored state of the rail 3 is maintained.

The holding member 6 of the latch member 60 has upper and lower fitting protrusions 62 and 62 fitted to the inner surfaces of the upper and lower bent edges 11 and 11 of the fixed side rail 1 at the upper and lower ends, and the fixed side rail. A predetermined interval is provided between the mounting board 61 located on the inner surface of the upper and lower ends, the upper and lower spring holding cylinders 63 and 63 projecting from the upper and lower fitting protrusions 62 and 62, and the upper and lower spring holding cylinders 63 and 63. Between the upper and lower insertion columns 64, 64 projecting toward the drawer side and provided continuously with the mounting substrate 61, and between the upper and lower insertion columns 64, 64, slightly projecting toward the drawer side and approximately at the center in the vertical direction of the mounting substrate 61. A synthetic resin material is integrated with the connecting fitting portion 65 that is provided continuously and the end surface closing portion 66 that is provided continuously with the storage side end portion of the mounting substrate 61 and closes the storage side end surface of the fixed rail 1 in the mounted state. Is formed.

The upper and lower fitting protrusions 62 and 62, the upper and lower push spring holding cylinders 63 and 63, the upper and lower push springs 7 and 7 attached to the upper and lower push spring holding cylinders 63 and 63, and the upper and lower push springs 7 and 7. Since the caps 71 and 71 and the upper and lower insertion columns 64 and 64 are formed in the same shape facing each other in the vertical direction, only the upper side will be described below.
The upper fitting protrusion 62 is formed with an upper push spring holding hole 621 that communicates with the upper push spring holding surface 631 of the upper push spring holding cylinder 63. An upper drop prevention protrusion 632 is formed to prevent the push spring 7 from dropping from the upper push spring holding cylinder 63.

The upper push spring 7 is a compression spring that is slightly longer than the combined length of the upper push spring holding hole 621 and the upper push spring holding cylinder 63 formed over almost the entire width of the upper fitting protrusion 62 in the sliding direction. An upper fitting cap 71 made of a synthetic resin material is attached to the side.

The upper fitting cap 71 has a length that is approximately half the length of the upper pressing spring 7, is fitted into the upper pressing spring 7, and is an insertion holding column 711 for holding the upper pressing spring 7 in a straight line. An upper fitting head 712 that is integrally formed with the drawing-side end of the fitting-holding column 711, closes the drawing-side end surface of the upper pressing spring 7, and matches the shape of the upper pressing spring holding surface 631; The upper pressing spring 7 and the upper fitting cap 71 protrude upward from the fitting head 712 and abut against the storage-side end surface of the upper drop-off preventing protrusion 632 with a predetermined elasticity by the upper pressing spring 7. It has an upper inner surface side contact protrusion 712 that prevents the holding tube 63 from falling off.

Then, as the upper spring 7 slides toward the storage side of the moving side rail 3 and the intermediate rail 2, the post-retainer stopper 25 of the intermediate rail 2 comes into contact with the drawer side end surface of the upper fitting head 712. In order to maintain the locked state of the guide member 9 and the latch member 60 by this, a predetermined elasticity is applied to the moving side rail 3 via the intermediate rail 2 and the locked state is released at the same time. And the elasticity for the movement side rail 3 to slide in a drawing-out direction via the intermediate rail 2 is provided.

The upper insertion column 64 is formed in a columnar shape as a whole in which the drawer side end portion is substantially conical.
Then, in a state where the locking member 8 and the guide member 9 of the latch member 60 are locked, the ball sliding groove of the ball 54... Formed in the longitudinal direction of the outer surface of the upper bent edge 31 of the moving side rail 3. The upper insertion column 64 is elastically pressed to the upper surface of the storage side end, and the drawer side end of the upper insertion column 64 is formed on the inner surfaces of the upper bent edges 21 and 21 of the intermediate rail 2 in the sliding direction. Of the intermediate rail 2 in the locked state of the latch member 60 and the guide member 9 by being fitted between the lower surface of the storage side of the inner surface side ball sliding groove on which the balls 54. The strength of the storage side portion (portion where the balls 54... Are not located) of the moving rail 3 protruding from the storage direction is prevented.

The connection fitting portion 65 is formed on the substrate 10 in the vicinity of the storage side end of the fixed side rail 1 and attached to the fixed side rail 1. A coupling engagement hole 651 is formed to engage with 101.

A guide fitting portion 67 for holding the locking member 8 so as to be movable in the vertical direction is formed on the mounting substrate 61.
The guide fitting part 67 is positioned between the upper fitting columns 64 and the guide fitting hole 671 penetrating in the front-rear direction from the connecting fitting part 65, and the guide fitting hole 671 from the drawer side and the end face on the storage side, Guide fitting recesses 672 that have left and right support surfaces 679 and 679 of a predetermined depth located on the drawer side and the storage side with predetermined dimensions, and are continuously provided on the substrate 10 side of the outer rail 1 of the guide fitting hole 671, and a guide Between the two left and right upper and lower guide grooves 673 and 673, which are provided at a depth shallower than the fitting recess 672 and continuously above the fitting recess 672, and are located on the drawer side and the storage side, and between the left and right upper and lower guide grooves 673 and 673 The guide support protrusion 674 is formed.

Then, at the center of the guide fitting hole 671 in the drawer side and storage side direction, at the lower end of the guide fitting recess 672 and from the end face of the outer rail 1 on the substrate 10 side, a predetermined distance from the guide support protrusion 674 (will be described later). An elastic element 80 is formed integrally with the mounting substrate 61 so as to protrude upward to a position having a locking member mounting gap 800).

The elastic element 80 inclines in a direction away from the substrate 10 of the fixed-side rail 1 as it moves away from the connecting portion with the mounting substrate 61 (the connecting portion with the holding member 6) (approaching the guide support protrusion 674), It is molded to a predetermined thickness with a predetermined elasticity in the front-rear direction.

The locking member 8 attached to the guide fitting portion 67 is fitted to the guide fitting hole 671, has a vertical dimension that can move a predetermined distance in the vertical direction, and protrudes a predetermined dimension in the opposite direction of the elastic element 80. A guide fitting convex portion 82 having 81, and a substrate convex portion 83 that fits into the guide fitting concave portion 672 at the same height as the guide fitting convex portion 82 and at the same depth as the guide fitting concave portion 672. And protrudes upward at a predetermined interval (interval at which the guide support protrusions 674 are fitted) at the end portions on the storage side and the drawer side of the substrate convex portion 83, and fits in the left and right vertical guide grooves 673 and 673. In the state where the locking member 8 is located at the uppermost position, the upper end is formed by left and right guide corners 84 and 84 formed to a height that does not protrude above the upper fitting convex portion 62.

The elastic element 80 is fitted to the surface of the guide fitting convex portion 82 opposite to the surface from which the locking pin 81 protrudes (the surface of the substrate convex portion 83 on the fixed rail 1 side). An elastic element fitting recess 85 is formed.
That is, by applying a force from the front side surface to the substrate 10 side of the fixed side rail 1 to elastically deform the elastic element 80, the locking member mounting gap 800 is widened, and the widened locking member mounting gap is expanded. In 800, the guide fitting convex portion 82 and the substrate convex portion 83 are guided from an oblique direction in a state where the locking pin 81 is set to the front side direction and the left and right guide corner portions 84 and 84 are gripped and the locking member 8 is slightly bent. When the force applied to the elastic element 80 is removed after fitting into the fitting hole 671 and the guide fitting recess 672, the elastic element 80 is fitted into the elastic element fitting recess 85, and the left and right guide corners 84, 84 are The engaging member 8 is fitted in the left and right upper and lower guide grooves 673 and 673 and is pushed in the front side direction by the elastic force of the elastic element 80.

Since the front surface of the substrate protrusion 83 is in contact with the bottom surfaces 670 and 670 of the guide fitting recess 672, the locking member 8 is pressed with a predetermined strength with a predetermined strength. It does not move up and down unless external force is applied.

The latch member 60 is configured as described above, and is inserted from the storage side end of the fixed rail 1, and the upper and lower fitting convex portions 62 and 62 are the inner surfaces of the corners of the fixed rail rail 10 and the upper and lower bent edges 11 and 11. And the coupling engagement hole 651 engages with the coupling engagement protrusion 101 formed on the stationary rail 1 in a state where the end surface blocking portion 66 is in contact with the storage-side end surface of the stationary rail 1. It is attached to the storage side end of the fixed rail 1.

A guide member 9 that is attached to the storage-side end of the movable rail 3 and that can be freely engaged with and disengaged from the latch member 60 is integrally formed of a synthetic resin material.
The guide member 9 is formed by a guide substrate 90 having a predetermined thickness, and a guide recess 91 in which a storage-side end formed on the guide substrate 90 is opened and a tip portion of the locking pin 81 is inserted.
A laterally approximately heart-shaped guide projection 92 is formed at a substantially central portion in the vertical direction of the guide recess 91.

The guide substrate 90 protrudes in the direction of the substrate 30 of the moving rail 3, matches the notch portion of the storage side end surface of the moving side rail 3, and an end surface protruding edge 93 formed on the storage side end surface closing the notch end surface. And a fitting protrusion 94 that fits into a mounting hole (not shown) formed in the board 30 of the moving rail 3 on the side of the predetermined dimension of the end face protruding edge 93 and the board 30 of the moving rail. There are upper and lower fitting edges 95 and 95 that fit tightly to the corners of the bent edges 31 and 31, and strong pressure is applied to the inner surface of the substrate 30 between the upper and lower bent edges 31 and 31 at the storage side end of the movable rail 3 Fitted and attached.

The guide recess 91 has a vertical dimension corresponding to the vertical movable dimension of the locking member 8, and includes an entrance / exit insertion part 910 that opens at the storage side end, a first guide wall surface 911, and a first upper wall surface 912. , A first lower wall surface 913, an unlocking wall surface 914, a first upper wall surface 912, a second upper wall surface 915, a second lower wall surface 916, a first lift wall surface 917 and a second lift wall surface 918. Has been.

That is, the first guide wall surface 911 is gently inclined downward from the upper end of the entrance / exit opening 910 toward the drawer side, and further guides a gap through which the locking pin 81 can pass from above the guide protrusion 92. It has on the drawer side above the protrusion 92 and is inclined downward in an arc shape to a height position substantially the same as the upper end of the guide protrusion 92.

The first upper wall surface 912 extends from the drawer-side end portion of the first guide wall surface 911 to the drawer side at a height position substantially the same as the upper end of the guide protrusion 92, and the first lower wall surface 913 is engaged. The locking pin 81 is formed parallel to the lower side of the first upper wall surface 912 with a gap through which the locking pin 81 can pass, and the locking pin 81 can be placed on the storage side end from the drawer side end of the first guide wall surface 911. It protrudes slightly on the storage side.

The unlocking wall surface 914 is inclined downwardly from the storage side end of the first lower wall surface 913 to the substantially same height position as the lower end of the guide projection 92 in the pulling direction, and the second upper wall surface 915 is an unlocking wall surface. A predetermined length is extended from the drawer-side end portion of 914 to the drawer side in the same height position as the lower end of the guide projection 92 in the same manner as the first upper wall surface 912, and the second lower wall surface 916 is a locking pin 81. Is formed in parallel to the lower side of the second upper wall surface 915, and the storage-side end portion reaches the storage side slightly from the storage-side end portion of the guide convex portion 92.

The first push-up wall surface 917 is inclined upward toward the storage side from the storage side end of the second lower wall surface 916 to a position slightly higher than the lower end of the guide projection 92, and between the rear ends of the guide protrusions 92. In addition, the second push-up wall surface 918 is inclined downward from the upper end of the first push-up wall surface 917 toward the storage side.

The guide protrusion 92 is formed between the first upper wall surface 912 and the second lower wall surface 916 with a gap through which the locking pin 81 can pass. An inclined push-up guide surface 921, an engaging guide surface 922 inclined downward from the upper end of the push-up guide surface 921, and a lower end portion of the engaging guide surface 922 connected to the lower end. And a locking surface 923 that is inclined toward the drawer side.

The first embodiment is configured as described above, and the post-retainer stoppers 25 and 25 of the intermediate rail 2 are in contact with the upper and lower fitting heads 712 and 712 of the upper and lower push springs 7 and 7 so that the moving rail stopper of the moving rail 3 is moved. State in which 33 is in contact with the drawer side end surface of the intermediate rail 2 (state shown in FIG. 10)
When the moving rail 3 is pushed in while compressing the vertical push springs 7 and 7 with the intermediate rail 2, the push-up guide surface 921 of the guide projection 92 abuts on the locking pin 81 of the locking member 8, As the moving rail 3 (guide member 9) moves in the storage direction, the locking pin 81 (locking member 8) moves upward along the push-up guide surface 921 and gets over the guide convex portion 92. To reach. (The state in which the locking pin 81 is pushed up most. The state shown in FIG. 11)

When the moving rail 3 is further pushed in the storing direction, the locking pin 81 moves downward along the drawer side end of the first guide wall surface 911, and between the first upper wall surface 912 and the first lower wall surface 913. When the retracting force is released in a state where the moving side rail 3 and the intermediate rail 2 are pushed in most (sliding of the moving side rail 3 is stopped), the intermediate rail 2 (the moving side rail 3) is moved up and down. 7 and 7 is pushed back in the pull-out direction, and the storage-side end of the first upper wall surface 912 passes through the location of the locking pin 81 (the state shown in FIG. 12), and the locking guide surface 922 is engaged. Abuts against the stop pin 81, pushes down the engagement pin 81 along the engagement guide surface 922, and abuts against the engagement surface 923 (the latch member 60 and the guide member 9 are in an engaged state. The state shown in FIG. ), The moving side rail 3 and the intermediate rail 2 are connected to the fixed side rail 1. Storage state is maintained by.

Next, when the moving side rail 3 and the intermediate rail 2 are pulled out, if the moving side rail 3 is pushed into the storage side against the elasticity of the vertical push springs 7 and 7 from the state shown in FIG. The lock release wall surface 914 comes into contact, and the lock pin 81 is pushed down along the lock release wall surface 914. (The state shown in FIG. 14)
In this state, removal in the storage direction is removed, or further, the locking pin 81 is pushed most into a predetermined position between the second upper wall surface 915 and the second lower wall surface 916 (position where the moving rail 3 stops). When the addition is removed, the intermediate rail 2 (moving side rail 3) is pushed back to a predetermined position in the pull-out direction by the elastic force of the vertical push springs 7 and 7.

At this time, the storage-side end portion of the second lower wall surface 916 passes through the location of the locking pin 81, and the first push-up wall surface 917 contacts the lock pin 81, along the first push-up wall surface 917. After the locking pin 81 is pushed upward (the state shown in FIG. 15), the locking member 8 (locking pin 81) is moved to the bottom surfaces 670 and 670 of the guide fitting recess 672 by the elasticity of the elastic element 80. Since it is elastically pressed, it is maintained at a predetermined height. (Height position shown in FIG. 10)

That is, the first push-up wall surface 917 ensures that the locking pin 81 comes into contact with the lower end of the push-up guide surface 921 of the guide convex portion 92 at a slightly higher height position when the moving-side rail 3 is stored. Thus, the height position of the locking pin 81 is defined when the moving side rail is pulled out.

On the other hand, if the locking member 8 is simply attached to the holding member 6, the locking pin 81 is in an indefinite height position. In this state, the latch member 60 is attached to the stationary rail 1, and the moving rail When 3 is stored, as described above, the locking pin 81 does not necessarily abut against the push-up guide surface 921 of the guide convex portion 92.
Next, a case where the locking pin 81 is initially at a position higher than the guide convex portion 92 and a case where it is at a position lower than the guide convex portion 92 will be described.

When the locking pin 81 is at a position higher than the guide convex portion 92, the entrance / exit insertion portion 910 has a vertical dimension corresponding to the vertically movable dimension of the locking member 8, and the storage side end portion opens, The first guide wall surface 911 is gently inclined downward from the upper end of the entrance / exit insertion opening 910 toward the pull-out side, and further, the guide protrusion projects through a gap through which the locking pin 81 can pass from above the guide protrusion 92. The locking pin 81 is provided on the drawer side above 92, and is inclined in an arc shape downward to substantially the same height as the upper end of the guide projection 92, so that the moving side rail 3 is pushed in the storing direction. Moves downward from the storage-side end of the first guide wall surface 911 along the drawer-side end, is positioned between the first upper wall surface 912 and the first lower wall surface 913, and the moving rail 3 and the intermediate rail 2 are the most. It has been pushed in (the sliding of the moving rail 3 has stopped) .

When the storage force is released, the intermediate rail 2 (moving side rail 3) is pushed back in the pull-out direction by the elastic force of the upper and lower push springs 7 and 7, and the storage side end portion of the first lower wall surface 913 is connected to the locking pin 81. After passing through the location (the state shown in FIG. 12), the locking guide surface 922 comes into contact with the locking pin 81, and the locking pin 81 is pushed down along the locking guide surface 922 so that it contacts the locking surface 923. The latch member 60 and the guide member 9 are brought into a locked state (the state shown in FIG. 13), and the movable rail 3 and the intermediate rail 2 are maintained in the stored state with respect to the fixed rail 1.

When the locking pin 81 is at a position lower than the guide convex portion 92, the second push-up wall surface 918 is formed so that the upper end is inclined upward in the pull-out direction to a position slightly higher than the lower end of the guide convex portion 92. Therefore, the locking pin 81 is pushed upward along the second push-up wall surface 918, and then the push-up guide surface 921 of the guide convex portion 92 is abutted. Then, the locking pin 81 (the locking member 8) moves upward along the push-up guide surface 921 and reaches a position over the guide convex portion 92 (the state where the lock pin 81 is pushed up most. 11), and then comes into contact with the locking surface 923 (the latch member 60 and the guide member 9 are in the locked state (the state shown in FIG. 13). The moving side rail 3 and the intermediate rail 2 are The storage state is maintained with respect to the fixed rail 1.

A second embodiment will be described with reference to FIGS.
The second embodiment is the same as the first embodiment except for the holding member 6 of the latch member 60, the locking member 8, and the elastic element 80.
That is, the holding member 6 is similar to the first embodiment in that the upper and lower fitting protrusions 62 and 62, the mounting substrate 61, the upper and lower push spring holding cylinders 63 and 63, the upper and lower fitting columns 64 and 64, and the connection fitting portion. 65 and the end face blocking portion 66 are integrally formed of a synthetic resin material.
Then, the elastic element 80 in the case of the first embodiment moves away from the connection portion with the mounting substrate 61 (the connection portion with the holding member 6) (approaching the guide support protrusion 674), and then the substrate of the fixed rail 1 The elastic element 80 is formed in a predetermined thickness with a synthetic resin material integrally with the mounting substrate 61 while being inclined in a direction away from 10 and given a predetermined elasticity in the front-rear direction. Is provided on a locking member 8 to be described later, and a holding projection piece 68 projecting straight upward is formed instead of the elastic element 80 of the first embodiment.

As in the first embodiment, the locking member 8 according to the second embodiment includes a guide fitting convex portion 82, a substrate convex portion 83, left and right guide corner portions 84 and 84, and a locking pin 81.
Then, the elastic element 80 of the first embodiment is formed on the surface of the guide fitting convex portion 82 opposite to the surface from which the locking pin 81 protrudes (the surface on the substrate 10 side of the fixed rail 1 of the substrate convex portion 83). A holding projection piece concavity 86 having the same shape as the elastic element fitting concavity 85 into which the alternative holding projection piece 68 is fitted is formed.

In the elastic elements 80 and 80 of the second embodiment, the lower end portions of the left and right guide corner portions 84 and 84 are connected to each other, the upper end portion has a predetermined gap from the left and right guide corner portions 84 and 84, and the left and right direction (storage) In a semicircular shape in the direction and the drawing direction) and elastically pressed against the left and right support surfaces 679 and 679 of the guide fitting recess 672 formed in the holding member 6 to maintain the locking member 8 at a predetermined height. To do.
That is, by applying a force from the front side surface to the substrate 10 side of the fixed side rail 1 to elastically deform the holding protrusion 68, the locking member mounting gap 800 is widened, and this widened locking member mounting The guide fitting convex portion 82 and the substrate convex portion 83 are inserted into the guide fitting hole 671 and the guide fitting concave portion from an oblique direction with the locking pin 81 facing the front side and the locking member 8 slightly facing the gap 800. At the same time, the elastic elements 80 and 80 are flatly deformed and fitted between the left and right support surfaces 679 and 679 of the guide fitting recess 672.

Next, when the force applied to the elastic elements 80 and 80 and the holding protrusion 68 is removed, the elastic elements 80 and 80 are elastically pressed against the left and right support surfaces 679 and 679, and the holding protrusion 68 is fitted to the holding protrusion. Fit into the recess 86.
And since the surface of the front side of the board | substrate convex part 83 is contact | abutting to the bottom face 670,670 of the guide fitting recessed part 672, the latching member 8 is hold | maintained in the state attached to the guide fitting part 67, and external force Unless it is loaded, it will not move up and down unexpectedly.

As described above, according to the present invention, the operation of pushing the drawer in the storage direction with a part of the body makes the moving side rail locked with the fixed side rail, and further pushing the moving side rail from the locked state. This is a so-called push-type slide rail locking device that can release the locked state of the moving rail and pull out the drawer without using the hand up to a predetermined position. It can be used widely for seasoning drawers in the system kitchen, especially when touching the hands.

DESCRIPTION OF SYMBOLS 1 Fixed side rail 11, 11 Vertical folding edge 100 Slide rail 2 Intermediate rail 3 Moving side rail 6 Holding member 60 Latch member 672 Guide fitting recessed part 679,679 Left-right support surface
7 Pushing Spring 8 Locking Member 80 Elastic Element 81 Locking Pin
9 Guide members

Claims (4)

A latch member attached to the storage-side end portion of the fixed-side rail, wherein the moving-side rail pushed in the storing direction is brought into the locked state, and the moving-side rail pushed further from the locked state is released from the locked state; In the locking device for the push type slide rail, which is attached to the storage side end of the moving side rail and includes a guide member that is detachable from the latching member, the latching member holds the moving side rail that has been released from the locked state. A push spring that pushes out to a position, a latch member that has a latch pin that is slidable in the vertical direction and that can be freely engaged with and disengaged from the guide member, and that holds the push spring and the latch member at the storage side end of the fixed rail It is composed of a holding member to be connected, and the locking state of the moving side rail is released and the height of the locking pin is maintained when the guide member is positioned on the drawer side of the latch member. When disengaging with Elastic element pin movably retain the locking member resiliently vertically, the locking device of the push slide rail, characterized in that it is formed by the holding member integrally with the synthetic resin material. The elastic element inclines in a direction away from the board of the fixed side rail as it moves away from the connecting portion with the holding member, and elastically presses against the board side surface of the fixed side rail of the locking member attached to the holding member. 2. The push-type slide rail locking device according to claim 1, wherein: A latch member attached to the storage-side end portion of the fixed-side rail, wherein the moving-side rail pushed in the storing direction is brought into the locked state, and the moving-side rail pushed further from the locked state is released from the locked state; In the locking device for the push type slide rail, which is attached to the storage side end of the moving side rail and includes a guide member that is detachable from the latching member, the latching member holds the moving side rail that has been released from the locked state. A push spring that pushes out to a position, a latch member that has a latch pin that is slidable in the vertical direction and that can be freely engaged with and disengaged from the guide member, and that holds the push spring and the latch member at the storage side end of the fixed rail An elastic element that is composed of a holding member to be connected and that keeps the locking pin at a predetermined height in a state where the locking state of the moving rail with respect to the fixed rail is released is a synthetic resin integrally with the locking member. Formed of material Locking device push the slide rail, characterized in that is. The push-type slide rail engagement mechanism according to claim 3, wherein the elastic element bulges in a semicircular shape in the left-right direction and elastically presses against the left and right support surfaces of the guide fitting portion formed in the holding member. Stop device.

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