JPH0677580U - Rail device for extraction - Google Patents

Abstract

(57) [Summary] [Purpose] In the rail device to be attached to the extractor,
Even if it is used for a long period of time, it is possible to prevent the parts from being deformed and to operate the rail device reliably. [Structure] A rotary piece 22 that extends and projects a detachable lever 27 is pivotally supported at the tip of the retainer 6. Further, the engaging stepped portion 28 provided on the attachment / detachment lever 27 is engaged with the engaging projection 14 at the tip of the inner rail 7 when the inner rail 7 is pulled out, and the dropping out of the extraction is prevented. Also, the inner rail 7
At the time of insertion, the attaching / detaching lever 27 is engaged with the abutment projection 30 provided on the inner surface of the outer rail 1 until the inserted front end surface 25 gets over the rotary piece 22, and the extraction insertion work is performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an extraction rail device that is attached to an extraction desk such as an office desk or cabinet and that facilitates the extraction operation.

[0002]

[Prior art]

 Conventionally, as a device for extracting office desks, cabinets, etc., and mounting slide shelves, etc., a retainer is slidably mounted in an outer rail as in the invention described in Japanese Utility Model Laid-Open No. 52630/1990. However, there is an outer rail in which the inner rail is attached so as to be able to move forward and backward through this retainer.

In this conventional device, the engagement protrusion provided at the tip of the inner rail in the insertion direction is engaged with the engagement step portion protruding from the retainer of the retainer, so that the retainer of the retainer is prevented. The inner rail was not allowed to separate from the retainer except when operating.

In addition, the retainer projects elastic pieces on both sides of the separation prevention piece, and the ends of the elastic pieces are engaged with the protruding pieces on the inner surface of the outer rail, so that the outer rail is inserted when the inner rail is inserted. I was trying to prevent the retainer from sliding inside the rails. Further, when the elastic piece is regulated inward by the inserted inner rail, the retainer releases the engagement between the elastic piece and the protruding piece and slides in the outer rail.

[0005]

[Problems to be solved by the device]

 However, according to this conventional device, when engaging the engaging projection of the inner rail with the engaging step of the retainer, the engaging step pulls out the strong pull-out of the inner rail through the engaging projection. A force acts in the direction. Therefore, the disengagement prevention piece is greatly curved toward the inner rail via the engagement step portion, and if this state is repeated many times, there is a risk of plastic deformation to an unrecoverable state.

When the separation preventing piece is plastically deformed, even if the engagement between the engagement projection and the engagement step portion is released, the separation preventing piece does not return to the inner rail direction. Therefore, before the engaging protrusion and the engaging step engage with each other, the engaging protrusion of the inner rail and the tip of the separation preventing piece come into contact with each other first, and the engaging protrusion reaches the engaging step. It will prevent the moving inner rail from sliding. In addition, it is impossible to extract and extract only the dimension between the tip of the separation prevention piece and the engagement step portion.

Further, as described above, since the engagement projection of the inner rail and the tip of the separation prevention piece come into contact with each other before the engagement projection and the engagement step are engaged, the separation prevention piece Is hidden behind the inner rail. For this reason, it was difficult to pull out the inner rail from the retainer by operating the separation prevention piece, and it was impossible to pull out the inner rail.

Further, in the conventional device, when the inner rail is mounted on the outer rail, the elastic piece of the retainer is in contact with the inner rail and is always regulated inward. Therefore, even if the inner rail was removed from the outer rail and the restriction on the elastic piece was released, the elastic piece was plastically deformed and could not restore its position after long-term use. For this reason, the retainer cannot engage the elastic piece with the protruding piece of the outer rail and is free to slide in the outer rail, which sometimes makes it difficult to insert the inner rail.

The present invention is intended to solve the above-mentioned problems, and in a rail device for attaching an extractor or the like to an office desk, a cabinet, or the like, a failure due to deformation of parts or the like is caused. The rail device can be reliably operated, and the pull-out operation and the pull-out operation such as extraction can be favorably performed.

[0010]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention mounts a retainer on the outer rail so that the retainer is capable of sliding forward and backward, and the inner rail is mounted on the outer rail via this retainer. In the case where it is mounted so that it can move forward and backward, an engaging projection protruding toward the retainer is provided at the tip of this inner rail in the insertion direction, and the engaging projection is slid at the tip of the retainer on the abutting projection side. A rotary piece is rotatably supported by a support shaft with a moving interval, and the tip of the rotary piece is extended and protruded to form a detachable lever. The detachable lever is provided with an engaging protrusion of an inner rail. Has an engaging step that can be engaged when the inner rail is pulled out, and the tip of the detachable lever engages when the inner rail is inserted when the detachable lever is pressed toward the outer rail. This projection is -The crossover portion that projects on the inner surface of the rail and abuts against the tip surface in the insertion direction of the inner rail when the attachment / detachment lever and the abutment protrusion are engaged It is formed as a rotating piece, and an inner rail overcoming the crossover portion by a strong pressing force can rotate the rotating piece from the spindle to release the engagement between the attaching / detaching lever and the abutting protrusion. .

Further, the rotating piece and the attaching / detaching lever may be made of a metal material.

[0012]

[Action]

 Since the present invention is configured as described above, in order to mount the inner rail on the outer rail, first, the retainer mounted inside the outer rail is positioned on the insertion side of the inner rail. Then, the attachment / detachment lever at the tip of the rotating piece pivotally supported by the retainer is pressed toward the outer rail side, and the tip of the attachment / detachment lever is engaged with the abutting protrusion provided on the inner surface of the outer rail. Further, by this rotation, the rotating piece moves to the inner rail side at the crossover portion located via the support shaft with respect to the attachment / detachment lever.

Then, the inner rail is inserted into the retainer from the tip portion. With the insertion of the inner rail, the retainer also tries to slide in the outer rail in the insertion direction of the inner rail. However, since the attachment / detachment lever located at the tip of the retainer on the side of the abutting projection engages the tip of the abutment projection as described above, the retainer moves inside the outer rail until this engagement state is released. It does not move, making it easy to insert the inner rail.

Then, when the inner rail is further inserted, the engaging projection at the front end in the insertion direction of the inner rail passes through the sliding interval of the rotating piece pivotally supported by the retainer. Simultaneously with this passage, the front end surface of the inner rail in the insertion direction abuts on or gets over the crossover portion of the rotating piece. Therefore, by the inner rail that rides over the crossover section with a strong force, the rotating piece rotates the crossover section to the outer rail side with the support shaft as the fulcrum. In addition, this rotation moves the attachment / detachment lever, which is located via the support shaft with respect to the boarding portion, to the inner rail side. Therefore, the engagement between the tip of the attaching / detaching lever and the abutting protrusion of the outer rail is released, and the retainer slides in the outer rail while inserting the inner rail.

Further, when the engaging protrusion of the inner rail passes through the sliding interval of the rotating piece, it comes into contact with the engaging step of the attaching / detaching lever, and the attaching / detaching lever moves the attaching / detaching lever through the engaging step. Press on. By pressing the attaching / detaching lever, the rotating piece tries to rotate in the pressing direction, but since the crossover portion is in contact with the inner surface of the inner rail, it does not rotate.

Therefore, the attachment / detachment lever at the tip of the rotating piece is curved toward the outer rail side, and the engagement protrusion of the inner rail can get over the engagement step of the attachment / detachment lever, so that the inner rail can be attached to the outer rail.

Then, in the normal use of pulling out the extract or the like and putting in or out the contents inside the extract, the extract or the like is pulled out, and the inner rail is moved in the direction opposite to the inserting direction at the time of mounting. To move. With this movement of the inner rail, the retainer also slides in the outer rail in the same direction as the inner rail. Then, when the attaching / detaching lever is exposed from the moving inner rail and the engaging projection of the inner rail engages with the engaging step of the attaching / detaching lever, the inner rail stops moving in the disengagement direction. Therefore, the extraction etc. does not fall off the desk etc.

In the above, the inner rail is attached to the outer rail, but in order to separate the inner rail from the outer rail, first, the engagement step of the attaching / detaching lever and the engagement protrusion of the inner rail are engaged. Cancel the state. To release this, the detachable lever exposed from the inner rail is pressed toward the outer rail by moving the inner rail in the pull-out direction. Due to this pressing, the attachment / detachment lever tries to rotate together with the rotating piece via the support shaft, but the rotating piece cannot rotate because the crossover portion is in contact with the inner surface of the inner rail. . Therefore, the attachment / detachment lever in the tip direction from the rotating piece is curved toward the outer rail side, and the engaging step portion is retracted toward the outer rail side. The engaged state can be released.

When the inner rail is further moved in the disengagement direction while releasing the engagement state, the engagement protrusion of the inner rail rides over the engagement step of the attachment / detachment lever, and the sliding interval of the rotating piece is increased. The inner rail can be separated from the outer rail after passing through.

As described above, in the rail device, the turning piece is rotatably supported by the tip of the retainer on the abutting projection side via the support shaft, and the tip of the turning piece is extended and projected to form a detachable lever. As a result, the rotating piece and the attachment / detachment lever are formed separately from the retainer. Therefore, it is possible to form the attachment / detachment lever and the rotating piece with a high-strength material different from the material of the retainer for sliding the rail.

Therefore, even if the rotating piece abuts against the tip end surface of the inner rail, it can be prevented from being significantly worn or damaged. Further, the attaching / detaching lever does not undergo plastic deformation even when subjected to a strong pressing force by the engaging projections of the inner rail, and it is possible to prevent the detachment failure of the inner rail.

Further, in the rail device, as in the conventional case, an extra force is not always applied to each component in a state where the inner rail is attached to the outer rail. Therefore, even if the rail device is used for a long period of time, there is no risk of causing a failure, etc., and it is possible to reliably perform the pulling-out operation and the pulling-out operation of the extraction with the rail device fixed.

Further, if the rotating piece and the attaching / detaching lever are made of a metal material, damage, wear, plastic deformation, etc. due to contact with the inner rail can be prevented more reliably, and the operation of the rail device is improved. .

[0024]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. (1) is an outer rail, which is made of metal, hard synthetic resin, or the like, and is fixed to an extractor or the like as shown in FIG. The part (2) is formed flat and both sides of the fixed part (2) are bent to form side walls (3), and the side walls (3) are curved in an arc shape that bulges outward. There is.

In addition, the outer rail (1) has an insertion hole (4) formed through the fixing portion (2), and a stopper (5) such as a bolt or a screw inserted through the insertion hole (4) is used for the purpose. It can be fixed to the section. In addition, an inner rail (7) is mounted inside the outer rail (1) via a retainer (6) so as to be able to move forward and backward.

The inner rail (7) is made of metal, hard synthetic resin, or the like, and the mounting and fixing portion (8) for a desk or the like is formed flat, and at the same time, the mounting and fixing portion (8) has bolts and screws. An insertion hole (11) for the stopper (10) is formed so that it can be fixed to the target portion. Further, the inner rail (7) is bent at both sides of the mounting and fixing portion (8) to provide a both-side bent wall (12). Further, the curved concave groove (13) is formed by bending the both side bent walls (12) in an inward arc shape. Further, the inner rail (7) has an engaging projection (14) formed by projecting the insertion direction end of the attachment fixing portion (8) toward the retainer (6).

Further, the inner rail (7) is mounted in the outer rail (1) via the retainer (6). The retainer (6) is made of a synthetic resin such as nylon having self-lubricating property, and as shown in FIGS. 1 and 3, the base (6) located so as to face the fixed portion (2) of the outer rail (1). 15) is provided, and both sides of the base 15 are raised to form both side sliding walls 16.

In addition, the retainer (6) is located with the both side sliding walls (16) facing the both side walls (3) of the outer rail (1), and at the same time, the both side sliding walls (16) are appropriately spaced. The fitting hole (17) is opened by and the steel ball (18) is rotatably fitted in the fitting hole (17). Further, the retainer (6) is slidable in the outer rail (1) by abutting the outer peripheral surface of the steel ball (18) against the inner surfaces of the side walls (3). In addition, the retainer (6) projects the inside of the outer peripheral surface of the steel ball (18) into the inside of the sliding walls (16) on both sides, and the outside of the curved groove (13) of the folding walls (12) on both sides. The inner rail (7) can be freely slid against the abutment.

Further, as shown in FIGS. 1 to 3, the retainer (6) is provided with a pair of shaft support pieces (20) at a predetermined interval at the tip of the base (15) in the insertion direction of the inner rail (7). ) Is provided in a protruding manner, and a rotating piece (22) is rotatably supported between the shaft supporting pieces (20) through a supporting shaft (21). Further, since the rotating piece (22) is provided with the sliding interval (23) of the engaging projection (14) of the inner rail (7), the engaging projection ( 14) There is no risk of contact with the inner rail (7), but there is a tip located on both sides of the engaging projection (14) of the inner rail (7) at the crossover portion (24) provided on the insertion side end surface of the inner rail (7). It is possible to hit the surface (25). Further, as shown in FIG. 2, the rotating piece (22) comes into contact with the friction projection (26) provided on the inner surface of the shaft support piece (20), so that the pressing force from the outside is stopped. It can be stationary.

Further, as shown in FIGS. 1 and 2, the rotating piece (22) has a tip end extended and protruding to form a detachable lever (27). The attaching / detaching lever (27) has an engaging step portion (28) protruding from the forming surface on the inner rail (7) side. The engaging stepped portion (28) is formed with a thick walled taper in the tip direction of the attachment / detachment lever (27), and when the inner rail (7) is pulled out, the engaging protrusion (14) of the inner rail (7). Can be engaged with. In this engaged state, the inner rail (7) cannot be disengaged from the outer rail (1).

In addition, the attaching / detaching lever (27) is rotated via the support shaft (21) of the rotating piece (22) while being pressed to the outer rail (1) side, and the outer rail (1) is rotated. It is possible to bring the tip into contact with the inner surface of the fixed part (2). When the retainer (6) in the outer rail (1) is located on the insertion side of the inner rail (7), the tip of the detachable lever (27) rotated to the outer rail (1) side is attached to the outer rail (1). It can be abutted and engaged with a bump projection (30) projecting on the inner surface of (1). In this engaged state, the retainer (6) is stopped from sliding in the inserting direction of the inner rail (7).

Further, in order to release the engagement state between the attaching / detaching lever (27) and the abutment protrusion (30), the tip end surface (25) of the inner rail (7) inserted in the retainer (6) is rotated. When the crossover portion (24) of the moving piece (22) is overcome by strong pressure, the turning piece (22) is turned from the support shaft (21), and the detachable lever (27) and the abutment protrusion (30) are moved. It is supposed that the engaged state can be released.

Further, although the rotating piece (22) and the attaching / detaching lever (27) are formed separately from the retainer (6), the rotating piece (22) and the attaching / detaching lever (27) are If it is made of a metal material such as iron, it is possible to reliably prevent damage, wear, plastic deformation, etc. due to contact with the inner rail (7), and improve the operation.

In order to mount the inner rail (7) on the outer rail (1) in the structure as described above, first, the retainer (6) mounted inside the outer rail (1) is shown in FIG. It is located on the insertion side of the inner rail (7) as shown. Then, the attachment / detachment lever (27) at the tip of the rotating piece (22) pivotally supported by the retainer (6) is pressed to the outer rail (1) side, and the tip of the attachment / detachment lever (27) is attached to the outer rail (1). It engages with the abutment protrusion (30) provided on the inner surface. As a result of this rotation, the rotating piece (22) causes the step-over portion (24), which is located via the support shaft (21) with respect to the attachment / detachment lever (27), to be attached to the attachment fixing portion (8) of the inner rail (7). ) Move to the side.

Then, the inner rail (7) is inserted into the retainer (6) from the tip portion. With the insertion of the inner rail (7), the retainer (6) also tries to slide in the outer rail (1) in the insertion direction of the inner rail (7). However, as shown in FIGS. 3 and 4, the attachment / detachment lever (27) located at the tip of the retainer (6) in the insertion direction of the inner rail (7) engages the abutment protrusion (30) at the tip. Therefore, the retainer (6) does not move inside the outer rail (1) until the engagement state is released, and the inner rail (7) can be easily inserted.

Then, when the inner rail (7) is further inserted, the engaging projection (14) at the distal end in the insertion direction of the inner rail (7) has a rotating piece (22) pivotally supported by the retainer (6). ) Sliding distance (23). Simultaneously with this passage, the front end surface (25) of the inner rail (7) in the insertion direction hits the overhanging portion (24) of the rotating piece (22) as shown in FIG. Therefore, by the inner rail (7) that rides over the crossover section (24) with a strong force, the rotating piece (22) moves the crossover section (24) to the outer rail (1) side with the support shaft (21) as a fulcrum. Rotate.

By the rotation of the rotating piece (22), the attachment / detachment lever (27), which is located via the support shaft (21) from the overriding portion (24), is attached to the fixing portion of the inner rail (7). Move to side (8). Therefore, the engagement state between the tip of the attaching / detaching lever (27) and the abutting protrusion (30) of the outer rail (1) is released, and the retainer (6) is moved to the inner rail (7) as shown in FIG. ), Slide inside the outer rail (1).

Further, when the engaging protrusion (14) of the inner rail (7) passes through the sliding interval (23) of the rotating piece (22), the engaging step (28) of the attaching / detaching lever (27). ) And presses the attachment / detachment lever (27) to the outer rail (1) side through the engagement step (28). By pressing the attachment / detachment lever (27), the rotating piece (22) tries to rotate in the pressing direction, but since the boarding portion (24) is in contact with the inner surface of the inner rail (7), the rotating piece (22) rotates. There is nothing to do.

When the inner rail (7) is further strongly slid, the attaching / detaching lever (27) at the tip of the rotating piece (22) is curved toward the outer rail (1) side as shown in FIG. The engaging protrusion (14) of () rides over the engaging step (28) of the attaching / detaching lever (27). Then, when this overcoming is completed, the detachable lever (27) in the bent state is restored as shown in FIG. 8, and the inner rail (7) can be attached to the outer rail (1).

Then, in normal use of pulling out the extract or the like and putting in or taking out the contents inside the extract, the extract or the like is pulled out, and the inner rail is moved in the direction opposite to the inserting direction at the time of mounting. Move (7). With the movement of the inner rail (7), the retainer (6) also slides in the outer rail (1) in the same direction as the inner rail (7). Then, the attaching / detaching lever (27) is exposed from the moving inner rail (7), and the engaging step portion (28) of the attaching / detaching lever (27) engages with the inner rail (7) as shown in FIG. The part (14) is engaged and the inner rail (7) stops moving in the disengagement direction. Therefore, the extraction etc. will not fall off the desk etc.

Further, in the above, the inner rail (7) is attached to the outer rail (1), but in order to separate the inner rail (7) from the outer rail (1), first, the engagement / disengagement lever (27) is engaged. The engagement state between the step (28) and the engagement protrusion (14) of the inner rail (7) is released. To release this, the detachable lever (27) exposed from the inner rail (7) is pushed toward the outer rail (1) side with a finger or the like by moving the inner rail (7) in the pull-out direction, as shown in FIG. . By this pressing, the attachment / detachment lever (27) tries to rotate together with the rotation piece (22) via the support shaft (21), but the rotation piece (22) causes the crossover section (24) to move to the inner rail ( Since it is in contact with the inner surface of 7), it cannot rotate.

Therefore, the attaching / detaching lever (27) in the distal direction from the rotating piece (22) is curved toward the outer rail (1) side, and the engaging step portion (28) is retracted toward the outer rail (1) side. It is possible to release the engagement state between the engagement protrusion (14) of the inner rail (7) and the engagement step (28) of the attachment / detachment lever (27).

Further, when the inner rail (7) is further moved in the disengagement direction while releasing the engagement state, the engagement protrusion (14) of the inner rail (7) is attached / detached as shown in FIG. Get over the engagement step (28) of the bar (27). Then, when the inner rail (7) is moved in the disengagement direction as shown in FIG. 10, the inner rail (7) passes through the sliding interval (23) of the rotating piece (22), and the inner rail (7) moves to the outer rail (1). ) Can be left.

[0044]

[Effect of device]

 Since the present invention is configured as described above, in the rail device for attaching the extractor to the office desk, cabinet, etc., the rotating piece and the detachable lever are formed separately from the retainer. Therefore, it is possible to form the attaching / detaching lever and the rotating piece with a high-strength material different from the material of the retainer for sliding the rail.

Therefore, even if the rotating piece abuts against the tip surface of the inner rail, it is not significantly worn or damaged. Further, the detachable lever does not undergo plastic deformation even when subjected to a strong pressing force by the engaging projections of the inner rail, and the detachment failure of the inner rail can be prevented.

Further, in the rail device, when the inner rail is attached to the outer rail, an excessive force is not always applied to each component.

Therefore, even if the rail device is used for a long period of time, there is no fear of causing a failure or the like, and it is possible to reliably perform the pull-out operation and the pull-out operation of the extraction with the rail device fixed. Become.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which an outer rail and an inner rail are separated.

FIG. 2 is an enlarged perspective view of a rotating piece and a detachable lever.

FIG. 3 is a plan view showing a state where an inner rail is inserted in a retainer.

FIG. 4 is a cross-sectional view showing a state in which the inner rail is inserted into the retainer with the tip of the attaching / detaching lever engaged with the abutting protrusion of the outer rail.

FIG. 5 is a cross-sectional view showing a state in which a tip end surface of an inner rail inserted into a retainer abuts on a boarding portion of a rotating piece.

FIG. 6 is a cross-sectional view showing a state in which an engaging protrusion of an inner rail inserted in a retainer passes through a sliding interval of a rotating piece.

FIG. 7 is a cross-sectional view showing a state in which an engagement protrusion of an inner rail inserted into a retainer rides over an engagement step.

FIG. 8 is a cross-sectional view showing a state where the inner rail is completely attached to the outer rail.

FIG. 9 is a cross-sectional view showing a state in which the attaching / detaching lever is pressed toward the outer rail in the process of separating the inner rail from the outer rail.

FIG. 10 is a cross-sectional view showing a state where the inner rail is separated from the outer rail.

[Explanation of symbols]

 1 Outer Rail 2 Fixed Part 6 Retainer 7 Inner Rail 14 Engagement Projection Part 21 Support Shaft 22 Rotating Piece 23 Sliding Interval 24 Crossover Part 25 Tip Surface 27 Detachable Lever 28 Engagement Step Part 30 Abutment Protrusion

Claims (2)

[Scope of utility model registration request] 1. A retainer mounted in the outer rail so as to be able to slide forward and backward, and an inner rail being mounted in the outer rail through the retainer so that the inner rail can advance and retreat. An engaging protrusion projecting to the retainer side is provided in a protruding manner, and at the tip of the retainer on the abutting protrusion side, there is provided a sliding interval of the engaging protrusion so that the rotating piece is rotatable about the supporting shaft. Support, and extend and project the tip of this rotating piece to form an attaching / detaching lever. The attaching / detaching lever is provided with an engaging step portion that can be engaged with the inner rail engaging protrusion when the inner rail is pulled out. With the lever pressed to the outer rail side, the abutment protrusion that engages the tip of the detachable lever when inserting the inner rail is
The crossover portion protruding from the inner surface of the outer rail and abutting against the distal end surface of the inner rail in the insertion direction in the engaged state of the attaching / detaching lever and the abutting protrusion, the attaching / detaching lever is located at a position via a support shaft. It is characterized in that it is formed in a turning piece, and the turning piece can be turned from a support shaft by an inner rail that rides over the crossover portion by strong pressing, and the engagement between the attaching / detaching lever and the abutment protrusion can be released. Rail device for extraction. 2. The extracting rail device, wherein the rotating piece and the attaching / detaching lever are made of a metal material.