JP2015012913A - Lock device for slide rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device for a slide rail, which maintains accommodation of shelf boards such as display shelves in a body, the lock device being a simple structure, being able to be manufactured at low costs with fewer components, and being excellent in workability.SOLUTION: In a locking device for a slide rail having a locking member and a lock member, the locking member is formed from synthetic resin material so as to integrate upper and lower fitting projection parts, a fixing part, and locking projection continuously provided on the internal face of the fixing part. The locking projection has: a guide inclining part formed on the front end side, and an abutting locking part formed at the rear end. The lock member is formed from a synthetic resin material so as to integrate: upper and lower elastic alar parts, a fixed base plate part, and a lock part having a locking projection, which locks to locking projection; and an operation arm part that unlocks the lock projection and the locking projection from each other. The lock projection has: an inclination part to be guided so as to correspond to the guide inclination part; and an abutting lock part corresponding to the abutting locking part.

Description

The present invention relates to a slide rail locking device that maintains a state in which shelf boards such as display shelves are housed in a main body.

Conventionally, a number of slide rail locking devices have been provided.
As a typical example thereof, as shown in Prior Art Document 1 (Patent Document 1), a fixed rail fixed to a main body such as a rack, and a movable rail arranged to be slidable with respect to the fixed rail. In the slide rail comprising a lock piece provided on the inner surface of the front end portion of the moving side rail, a locking projection piece protruding in the direction of the moving side rail is formed at the front end portion of the board of the fixed side rail, and the locking piece is , An operation projection that projects forward of the moving rail, and a guide ramp that projects to the locking projection piece side and the front end is locked to the locking projection piece and the rear end is inclined to a position away from the locking projection piece And a locking state maintaining portion that maintains the locking state of the guide inclined piece, and is rotatable in parallel with the moving side rail. It has been granted.
And the said rotational force was obtained by using a winding spring.

That is, the lock device has a problem of inventory management, cost, etc. due to an increase in the number of parts such as a lock piece (required for right and left), a winding spring, and a rivet. Furthermore, when assembling the lock device to the slide rail, it has to be assembled in a state where the winding spring is elastically deformed, and this work is very complicated and the productivity is not good.

Japanese Patent No. 3594494

The present invention is a slide rail that can be configured compactly with a simple structure, can be manufactured inexpensively with a small number of parts, is excellent in workability, and can add a lock function to a general slide rail that has already been manufactured. It is an object to provide a locking device.

Therefore, in order to solve the above problems, the present invention is configured as a first means, a fixed rail fixed to a main body such as a rack, and an intermediate rail slidably disposed with respect to the fixed rail. A movable rail slidably disposed with respect to the intermediate rail, a locking member detachably provided on the inner surface of the front end of the stationary rail, and a moving rail corresponding to the locking member. In the slide rail locking device including a locking member provided on the inner surface of the front end, the locking member is provided between the upper and lower fitting protrusions that are fitted to the fixed rail and the upper and lower fitting protrusions, and slides. A fixed part that is fixedly attached in the sliding direction of the rail and a locking projection that is continuously provided on the inner surface of the fixed part are integrally formed of a synthetic resin material, and the lock member is an upper and lower part that is fitted to the moving side rail. Elastic wings and upper and lower elastic wings A fixed substrate portion that is connected between the center portions in the sliding direction, is rotatable on the moving rail, and is fixedly attached to the sliding direction of the slide rail, and is connected in front of the fixed substrate portion, and A lock part having a lock protrusion to be engaged with the protrusion and a front part of the lock part, projecting forward of the moving side rail, and rotating the fixed substrate part in either the upper or lower direction, And an operation arm portion for releasing the locking state of the locking protrusion is integrally formed of a synthetic resin material.

  In order to solve the above problems, the present invention is configured as the second means. In addition to the first means, the locking projection is formed at the front end side and the guide inclined portion at the rear end. The locking protrusion has a guided inclined portion corresponding to the guide inclined portion and a contact locking portion corresponding to the contact engaging portion.

  According to the first means of the present invention, the locking member and the locking member are formed of a synthetic resin material, the locking member has a vertical fitting protrusion and a fixing portion, and the locking member is a moving side rail. Since the upper and lower elastic wing portions and the fixed substrate portion are fitted to each other, the moving rail or the fixed rail can be attached without using a tool. Since the lock member allows the fixed substrate portion to turn freely and the lock portion is connected to the front of the fixed substrate portion, if the turning force is applied to the operation arm portion in either the upper or lower direction, Since the locking state of the locking protrusion can be released, the locking member and the locking member can be used for both left and right, reducing the number of members and manufacturing at low cost. Further, when the rotational force is released, the original shape can be restored by the upper and lower elastic blades.

  According to the second means of the present invention, when the locking projection and the locking projection are released and the moving rail is moved forward, the locking projection is locked to the locking projection. However, when the moving side rail is housed again, the guided inclined portion is formed corresponding to the guiding inclined portion of the locking protrusion, so that the locking protrusion is on the moving side. When it is displaced to a position that does not affect the storage of the rail and passes through the locking projection, the contact lock part returns to the position where it comes into contact with the contact locking part of the locking projection, and the moving rail is locked. Can do.

It is a perspective view in the middle of extension of a slide rail of the present invention. It is a basic sectional view of a slide rail. It is a principal part perspective view of a movement side rail and a locking member. It is a perspective view of the back surface side of a locking member. It is a perspective view of a locking member. It is a principal part perspective view of a stationary-side rail and a locking member. It is explanatory drawing of the locked state of a slide rail. It is explanatory drawing which shows the state by which the protrusion for a lock | rock moved to the upward direction of the latching protrusion, and the locked state was cancelled | released. It is explanatory drawing which shows the state by which the protrusion for a lock | rock moved to the downward direction of the latching protrusion, and the locked state was cancelled | released. It is explanatory drawing which shows the state which the movement side rail slides, while the protrusion for a lock | rock contacts a latching protrusion. It is explanatory drawing which shows the state which the to-be-guided inclined surface of the protrusion for a lock | rock and the guide inclined surface of a latching protrusion are contacting. It is explanatory drawing which shows the state which the moving side rail was pulled out and the lock member was located ahead of the latching member.

The present invention includes a fixed rail fixed to a main body such as a rack, an intermediate rail slidably disposed with respect to the fixed rail, and a movable rail slidably disposed with respect to the intermediate rail. A locking device for a slide rail comprising a locking member detachably provided on the inner surface of the front end portion of the fixed side rail, and a locking member provided on the inner surface of the front end portion of the moving side rail, corresponding to the locking member, The locking member includes an upper and lower fitting projection that is fitted to the fixed rail, a fixed portion that is connected between the upper and lower fitting projections, and is fixedly attached in the sliding direction of the slide rail, and an inner surface of the fixing portion The locking projections that are continuously connected to the synthetic resin material are integrally formed, and the locking projection has a guide inclined portion formed on the front end side, and a contact locking portion formed on the rear end, The lock member includes upper and lower elastic wings that are fitted to the moving rail, and a slide lever. The fixed board part is connected between the upper and lower elastic wings at the center of the sliding direction of the cable, is rotatable to the moving rail, and is fixedly attached in the sliding direction of the slide rail, and is connected to the front of the fixed board part. A locking portion having a locking projection for locking to the locking projection, and connected to the front of the locking portion, protruding forward of the moving rail, and rotating the fixed substrate portion in either the up or down direction Thus, the operating arm for releasing the locking state between the locking protrusion and the locking protrusion is integrally formed of a synthetic resin material, and the locking protrusion corresponds to the guided inclined portion corresponding to the guide inclined portion. A contact lock portion is provided corresponding to the contact locking portion.

A basic configuration of the slide rail will be described with reference to FIGS.
The slide rail 100 includes a fixed side rail 1 connected to an inner surface of a main body such as a display shelf by a connection screw and the like, and a plurality of balls rotatably supported by the fixed side ball holding plate 3 with respect to the fixed side rail 1. The intermediate rail 4 is slidably provided via 30..., And the intermediate rail 4 is slid via a plurality of balls 50. A locking member 7, which is configured by a movable rail 2 provided movably and holds the state in which the movable rail 2 is housed in the fixed rail 1, is provided on the inner surface of the front end portion of the fixed rail 1. A locking member 6 that can be freely engaged and disengaged is provided on the inner surface of the front end of the moving rail 2. (See Figure 1)

  The fixed-side rail 1 includes upper and lower bent edges 11 and 11 having ball guide grooves in the inner longitudinal direction (sliding direction) formed by bending both short ends of a metal elongated strip into an inward arc shape. The substrate 12 has a substantially C-shaped cross section from the substrate 12, and a part of the substrate 12 protrudes in the direction of the moving rail 2 at the front part in the sliding direction, and the fixed side ball holding plate 3, the intermediate rail 4, the moving side ball holding plate 5 and the like. The moving side rail 2 is stopped in a state where the moving rail 2 is pulled out to the maximum, and the base plate 12 is projected in the moving side rail 2 direction at the rail extension stopper 13 for maximizing the extension of the slide rail 100 and the sliding direction rear end. A rail shortening stopper 130 is formed through the intermediate rail 4 or the like so as to stop the moving side rail 2 in the most retracted state and bring the slide rail 100 into the shortest contracted state.

The moving rail 2 has a length substantially equal to that of the fixed rail 1 and is a ball in the longitudinal direction (sliding direction) of the inner surface formed by bending both short ends of a metal elongated strip into an inward arc shape. Upper and lower bent edges 21 and 21 having guide grooves and a substantially C-shaped cross section facing the fixed side rail 1 from the substrate 22 are formed.
The front end of the board 22 is formed with a moving-side rail storage stopper 221 that protrudes in the direction of the fixed-side rail 1 and contacts the front end of the intermediate rail 4 when the moving-side rail 2 is stored. The moving rail rear end stopper 220 that contacts the rear end of the moving ball holding plate 5 in the maximum extension state of the slide rail 100 is formed in the part.

The intermediate rail 4 is formed in a size that can be inserted between the fixed-side rail 1 and the moving-side rail 2 with a band-shaped metal plate.
In other words, the short end portions of the metal elongated strip are bent outwardly in an arc shape, and the cross section is substantially composed of the upper and lower bent edges 42 and 42 having the ball guide grooves in the outer surface longitudinal direction (sliding direction) and the substrate 41. The C-shaped fixed-side intermediate rail and the fixed-side intermediate rail are symmetrical to the fixed-side intermediate rail, and the both ends of the short metal strip are bent into an outward arc shape, and the outer surface longitudinal direction (sliding direction) The upper and lower bent edges 43 and 43 having ball guide grooves and the substrate 40 are formed on the moving side intermediate rail formed in a substantially C-shaped cross section, and the substrates 41 and 40 are fixed to each other while being slightly displaced in the sliding direction. The cross section is substantially I-shaped, and is substantially the same length as the fixed side rail 1 and the movable side rail 2.

  The intermediate rail 4 projects to the fixed rail 1 side at the rear end of the base plate 41, contacts the fixed ball holding plate 3 at the time of pulling out the movable rail 2, and accommodates the movable rail 2. When the fixed side rail 1 is shortened, an intermediate rail rear end stopper 45 that contacts the inner surface of the stopper 130 is formed and protrudes toward the moving side rail 2 at the front end portion of the substrate 40, and moves when the moving side rail 2 is pulled out. A front end of the side ball holding plate 5 is in contact with the inner surface, and an intermediate rail front end stopper 44 is formed with which the inner surface of the stopper 221 is in contact with the moving side rail 2 when the moving side rail 2 is stored.

The fixed-side ball holding plate 3 is a strip metal plate that is shorter than the intermediate rail 4 by a predetermined dimension, and has a size that can be inserted between the fixed-side rail 1 and the intermediate rail 4, and the fixed-side rail 1 and the intermediate rail 4. Are formed in a substantially U-shaped cross section from the upper and lower protruding edges 32 and 32 positioned between the upper and lower bent edges 11, 11, 42 and 42, and balls are formed at several points in the longitudinal direction (sliding direction) of the upper and lower protruding edges 32 and 32. 30 ... are rotatably held.

  The moving-side ball holding plate 5 is a strip metal plate that is shorter than the intermediate rail 4 by a predetermined dimension, and has a size that can be inserted between the moving-side rail 2 and the intermediate rail 4, and the moving-side rail 2 and the intermediate rail 4. Are formed in a substantially U-shaped cross-section from the upper and lower protruding edges 52, 52 located between the upper and lower bent edges 21, 21, 43, 43, and the ball 50 at several points in the longitudinal direction (sliding direction) of the protruding edges 52, 52. ... is held rotatably.

  The slide rail 100 is configured as described above, and when the moving side rail 2 is stored most in the fixed side rail 1 (shortest contracted state), the intermediate rail rear end stopper 45 is the stopper 130 when the fixed side rail 1 is shortened. The stopper 221 is in contact with the front surface of the intermediate rail front end stopper 44 and the lock member 6 is locked to the locking member 7 of the fixed rail 1. . (Locked state. In this state, a clearance for releasing the locking state between the locking member 6 and the locking member 7 is provided, and the moving-side rail 2 is slightly movable in the sliding direction of the slide rail 100. .)

From this state, when the locking state of the locking member 6 with respect to the locking member 7 is released and the moving side rail 2 is pulled forward, the moving side is moved by a distance that is half the moving distance of the moving side rail 2. Since the ball holding plate 5 moves and the fixed-side ball holding plate 3 moves by a distance that is a half of the moving distance of the intermediate rail 4, the front surface of the moving-side rail rear end stopper 220 is located on the moving-side ball holding plate 5. Abutting on the rear end, the front end of the moving side ball holding plate 5 abuts on the rear surface of the intermediate rail front end stopper 44 of the intermediate rail 4, and the front side of the intermediate rail rear end stopper 45 of the intermediate rail 4 is on the fixed side ball holding plate 3. The front end of the fixed side ball holding plate 3 contacts the rear surface of the stopper 13 when the rail of the fixed side rail 1 is extended, the moving side rail 2 and the intermediate rail 4 are stopped, and the slide rail 100 is Maximum elongation On purpose becomes.

Next, the lock member 6 according to the first embodiment will be described with reference to FIGS.
The lock member 6 according to the first embodiment includes the upper and lower elastic wings 61 and 61 fitted to the inner surfaces of the upper and lower bent edges 21 and 21 of the moving side rail 2, and the slide rail 100 of the upper and lower elastic wings 61 and 61. A fixed substrate portion 62 that is connected between the central portions in the moving direction, is rotatable on the moving rail 2, and is fixedly attached in the sliding direction of the slide rail 100, and is connected in front of the fixed substrate portion 62 and fixed. A lock part 63 having upper and lower locking projections 631 and 631 on the side rail 1 side, and a front part of the lock part 63 projecting forward of the moving side rail 2, and the fixed substrate part 62 is either It is comprised from the operation arm part 64 rotated in the direction, and is integrally shape | molded from the synthetic resin material.
The rear surface of the fixed substrate 62 (the surface of the moving rail 2 on the substrate 22 side) is fitted with a pivot protrusion 220 formed on the inner surface of the front end of the substrate 22 of the moving rail 2, and the slide rail 100. A rotation holding recess 621 is formed to be held in a freely rotating manner without moving in the sliding direction. Reference numerals 620 and 620 indicate punch holes for reducing material costs.

Since the upper and lower locking projections 631 and 631 are formed in the same shape, only one side will be described.
The upper locking projection 631 is formed in an arc shape at the front end, and the upper contact locking portion 632 that engages with the locking member 7 and the rear portion of the lower surface side of the upper locking projection 631 are inclined upward and rearward. Further, it is formed in a substantially triangular shape laterally viewed from the side, from the upper guided inclined portion 633.
Reference numerals 634 and 634 denote upper and lower cut-off step portions for preventing the upper and lower lock projections 631 and 631 from coming into contact with the upper and lower elastic wing portions 61 and 61 when the upper and lower lock projections 631 and 631 rotate in the vertical direction around the rotation holding recess 621. Is shown.

The locking member 7 includes upper and lower fitting protrusions 71 and 71 that are fitted in ball guide grooves formed on the inner surfaces of the upper and lower bent edges 11 and 11 of the fixed rail 1, and the upper and lower fitting protrusions 71 and 71. It is integrally formed of a synthetic resin material from a fixed portion 72 provided in between.
Further, fitting projections 721 and 721 that fit into mounting fitting holes 121 and 121 formed in the board 12 of the fixed rail 1 are continuously provided on the surface of the fixed portion 72 on the board 12 side of the fixed rail 1. The upper and lower locking projections 73 and 73 are connected to the surface on the moving rail 2 side corresponding to the upper and lower locking projections 631 and 631 of the locking member 6 and fixed to the rear of the upper and lower locking projections 73 and 73. A fitting hole 722 that fits into the mounting projection 122 formed on the substrate 12 of the side rail 1 is formed.

Since the upper and lower locking projections 73 and 73 are formed in the same shape, only one side will be described.
The upper locking projection 73 corresponds to the upper guided inclined portion 633 formed on the upper locking projection 631 at the upper front end portion, and the upper guide inclined portion 731 which is inclined downward toward the front, and the upper contact lock The upper abutment locking portion 732 formed at the rear end corresponding to the portion 632 is formed in a substantially triangular shape in a lateral direction when viewed from the side.

  The locking member 6 and the locking member 7 of the first embodiment are formed as described above, and the moving side rail 2 is accommodated from the maximum extended state (the state where the drawer, the shelf board, etc. are pulled out most). As a result, the intermediate rail 4 is stored first with respect to the fixed rail 1, the moving rail 2 is stored first with respect to the intermediate rail 4, and further, the moving rail 2 with respect to the intermediate rail 4 is stored. The storage and the storage of the intermediate rail 4 with respect to the fixed rail 1 are performed simultaneously.

  However, since the lock member 6 is provided in front of the stopper 221 when the moving side rail is housed, the lock member 6 is finally locked regardless of the storing order of the moving side rail 2 and the intermediate rail 4 with respect to the fixed side rail 1. 6, the upper and lower guided inclined portions 633, 633 formed on the upper and lower locking projections 631, 631 have a lower surface on the distal end side in the storing direction, and the vertical guiding inclined portions of the upper and lower locking protrusions 73, 73 formed on the locking member 7 731 and 731 are in contact with the upper surface of the leading end of the drawer side. (The state shown by the solid line in FIG. 11)

  Further, when the movable rail 2 is housed, the upper and lower elastic wing pieces 61 and 61 are simultaneously elastically deformed while being in contact with the upper and lower guide inclined portions 731 and 731 of the upper and lower locking projections 73 and 73, and The lock portion 63 is rotated around the rotation holding recess 621, and the upper and lower lock projections 631, 631 are moved upward. (The state shown in FIG. 10)

  Further, when the moving-side rail 2 is housed, when the upper and lower abutment locking portions 632 and 632 of the upper and lower locking projections 631 and 631 pass over the upper and lower locking projections 73 and 73 of the locking member 7 to the storage side ( The state shown in FIG. 8) Due to the elasticity of the upper and lower elastic blades 61, 61, the lock portion 63 is rotated to the original state, the upper and lower lock projections 631, 631 are also returned to the original position, and the slide rail 100 is The shortest reduction state is achieved. (State shown in FIG. 7)

  That is, the intermediate rail rear end stopper 45 comes into contact with the front surface of the stopper 130 when the fixed side rail 1 is shortened, and the moving side rail 2 stopper 221 comes into contact with the front surface of the intermediate rail front end stopper 44 when the moving side rail 2 is retracted. The upper and lower contact locking portions 632 and 632 of the lock member 6 are locked to the upper and lower contact locking portions 732 and 732 of the locking member 7. (In the locked state. In this state, the release clearance for releasing the locking state of the locking member 6 and the locking member 7 is between the vertical contact locking portions 632 and 632 and the vertical contact locking portions 732 and 732. The moving side rail 2 is slightly movable in the sliding direction of the slide rail 100.)

When pulling out the moving rail 2 (shelf board, etc.) from this state, the upper and lower elastic wing pieces 61 and 61 are fixed while elastically deforming so that the upper surface of the shelf board and the lower surface of the operating arm 64 are grasped with the fingertips. The operation arm portion 64 is moved upward so that the lock portion 63 is rotated around the rotation holding recess 621 of the substrate portion 62, so that the upper and lower lock protrusions 631, 631 are moved upward and downward of the locking member 7. It is located above the locking projections 73, 73. (The state shown in FIG. 8. However, since the locking member 7 and the locking member 6 are also used as slide rails 100, 100 facing left and right, the locking member 7 attached to the slide rail 100 on one side is used. The lock member 6 is used in the state shown in FIG.

Further, while maintaining the above-described state, the movable rail 2 is pulled out until the upper and lower locking projections 631 and 631 of the locking member 6 pass above the upper and lower locking projections 73 and 73 of the locking member 7 and operated. When the fingertip is released from the arm portion 64, the lock portion 63 is rotated to the original state by the elasticity of the upper and lower elastic wing pieces 61, 61, and the upper and lower lock projections 631, 631 are also returned to their original positions. The moving-side rail 2 reaches its maximum extension state and stops in the middle of drawing shown in FIG.

It should be noted that the release clearance for releasing the locking state of the locking member 6 and the locking member 7 in the locked state (the shortest contracted state of the slide rail 100) is the vertical contact locking portions 632 and 632 and the vertical contact locking. When the slide rail 100 is used for an inclined shelf, the upper and lower abutment locking portions 732 and 732 of the locking member 7 and the upper and lower abutment locking portions of the lock member 6 are formed. Since 632 and 632 are in contact with each other, when the operating arm portion 64 of the lock member 6 is moved upward, the moving rail 2 slightly moves backward, but the shelf board is supported by the arms (fingertips). However, since the lock is released, the shelf board does not pop out unexpectedly even on an inclined shelf, and the operation can be performed safely.

DESCRIPTION OF SYMBOLS 1 Fixed side rail 100 Slide rail 2 Moving side rail 221 Stopping stopper when moving side rail 4 Intermediate rail 6 Lock member 61, 61 Vertical elastic wing part Connecting part 62 Fixed substrate part 63 Lock part 631, 631 Vertical lock protrusion 632, 632 Vertical contact locking part 633, 633 Vertical guide inclined part 64 Operation arm part
7 Locking members 71, 71 Vertical fitting protrusions 72 Fixed parts 73, 73 Vertical locking protrusions 731, 731 Upper guide inclined parts 732, 732 Upper contact locking parts

Claims (2)

A fixed rail fixed to a main body such as a rack, an intermediate rail slidably disposed with respect to the fixed rail, a movable rail slidably disposed with respect to the intermediate rail, and a fixed rail In the slide rail locking device, which includes a locking member detachably provided on the inner surface of the front end portion and a locking member provided on the inner surface of the front end portion of the moving side rail, the locking member corresponds to the locking member. The upper and lower fitting protrusions that are fitted to the fixed rail, the fixed fitting that is connected between the upper and lower fitting protrusions, and is fixedly attached in the sliding direction of the slide rail, and the inner surface of the fixing part. The locking protrusion is integrally formed of a synthetic resin material, and the lock member is connected between the upper and lower elastic wings fitted to the moving rail and the center of the upper and lower elastic wings in the sliding direction of the slide rail. It is possible to turn the moving side rail, slide rail A fixed substrate portion fixedly attached in a sliding direction, a lock portion having a locking projection that is connected to the front of the fixed substrate portion, and locked to the locking protrusion, and is connected to the front of the lock portion, The arm part for operation which protrudes ahead of the moving side rail and rotates the fixed substrate part in either the upper or lower direction to release the locking state between the locking protrusion and the locking protrusion is integrally formed from the synthetic resin material. A slide rail locking device characterized by that.   The locking projection has a guide inclined portion formed on the front end side and a contact locking portion formed on the rear end. The locking projection corresponds to the guided inclined portion corresponding to the guide inclined portion. The slide rail locking device according to claim 1, further comprising a contact lock portion corresponding to the contact locking portion.

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