JP2002078540A - Lift for storing shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lift for storing shelf capable of surely stopping storing shelves at any position on the way of movement, preventing the falling out of accommodated articles, and ensuring the safety of a worker. SOLUTION: The storing shelves are supported vertically movable on a frame fixed to the storing furniture. A braking disc is mounted on a rotating shaft rotatably supported on the fixed frame and rotated following the movement of the storing shelves. A braking member usually energized by the elastic force of an elastic member, is pressure contacted with a disc face of the braking disc. The braking member is separated from the disc face of the braking disc by a braking releasing means against the elastic force of the elastic member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a storage rack elevating device,
More specifically, the present invention relates to a storage rack elevating device provided with a braking device that can surely stop and hold the storage rack during elevating.

[0002]

For example, in a kitchen or entrance, furniture for a high place such as a door pocket or a clog box is provided at a high place in order to efficiently store items that are rarely used.
In this type of furniture for high places, an elevating device for elevating and lowering a storage shelf is provided in order to efficiently store and retrieve articles.

The applicant of the present invention has disclosed, for example, Japanese Patent Application No. 11-2104.
In No. 25, in furniture installed in the upper space,
A base member having a pair of left and right side plates supported so as to be able to protrude forward in the furniture; and a planar member supported between the pair of left and right mounting frames so as to be vertically movable with respect to the base member. A shelf frame to which a plurality of shelves are attached, a balancer movably supported on the side plate of the base member in the opposite direction with the movement of the shelf frame, and a shaft member rotatably supported on a rear surface of the base member A first gear that is fixed to each shaft end of each of the first and second gears and synchronously rotates with a pair of left and right plate gears extending in the front-rear direction and attached to the bottom plate of the furniture, and rotatable on the rear surface of the shelf frame. A second gear fixed to each shaft end of the supported shaft member and meshing with a pair of left and right plate gears extending vertically and attached to the rear portion of the base member to rotate synchronously. It was proposed furniture lifting apparatus of the type to directly lift up and down direction after projecting forwardly from the high place furniture as structures.

[0004] Similarly, in Japanese Patent Application No. 11-372212, a fixed frame fixed in furniture for high places and having a rotating shaft rotatably supported between a pair of opposed side plates, and can be positioned between the side plates of the fixed frame. The line connecting each pivot point is a parallelogram with respect to the rotation axis of the fixed frame, the fixed frame, and the side plate and the side plate of the shelf frame, and each shaft is rotatable between a vertical position and a horizontal position. The first and second punter arms supported are mounted on a rotating shaft located on one side plate side of the fixed frame, and one end is hooked on the fixed frame and the other end is hooked on the side plate of the shelf frame. A first elastic member capable of receiving the weight of the shelf frame, a second elastic member that always restricts rotation of the rotating shaft by an elastic force, and enabling rotation of the rotating shaft by the second elastic member. Consisting of braking release means Furniture lifting apparatus of a type which moves up and down swings around a rotation shaft provided in the high place furniture as concrete was proposed.

However, in any of the storage rack elevating devices, when the storage rack is stopped in the middle of elevating and lowering, the storage rack including the stored items is regulated to lower by applying a force corresponding to the weight of the storage rack. It was necessary and workability was bad. In particular, when the object to be stored is heavy, a large force is required to regulate the descent, and the workability is poor and dangerous.

[0006] Further, since the storage shelves storing the objects are themselves heavy, the storage shelves drop sharply by their own weight when the hands are released, and the stored objects pop out and are damaged. Or the operator may be injured.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks. An object of the present invention is to reliably stop the storage shelves at an arbitrary position in the middle of elevating the storage shelves. An object of the present invention is to provide a storage rack elevating device that can be used.

Another object of the present invention is to raise and lower a storage shelf which can surely stop the storage shelf during ascent and descent, prevent stored items from jumping out, and ensure the safety of workers. It is to provide a device.

[0009]

SUMMARY OF THE INVENTION The present invention is directed to a storage shelf supported up and down with respect to a fixed frame fixed in storage furniture, and a storage shelf rotatably supported by the fixed frame and moving the storage shelf. A rotating shaft that rotates with the rotating shaft, a braking disk that rotates integrally with the rotating shaft, a braking member that comes into contact with and separates from the disk surface of the braking disk, and a braking member that is always attached in a direction of pressing against the disk surface of the braking disk. The braking member includes a biasing elastic member, and braking release means for releasing the pressure of the braking member against the disk surface of the braking disk against the elastic force of the elastic member.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 In FIG. 1 to FIG. 4, furniture for high places 1 is a piece of furniture for storing relatively infrequently used items such as a hanging cabinet or a hanging shoebox attached to an upper part (high place) of a kitchen or an entrance. What is used. The place where the furniture for high places 1 is mounted is not limited to the above-mentioned place, but may be any furniture that is mounted at a relatively high place and stores various objects.

In the furniture for high places 1, a storage rack elevating device 3 is provided.
Is attached. The fixed frame 5 of the storage rack elevating device 3 is formed by bending side plates 5b standing on both sides of the bottom plate 5a fixed to the bottom plate 1a of the furniture for high places 1 by screws or the like (not shown).

The storage shelf 7 is attached to the fixed frame 5 so as to swing downward after projecting forward. A plurality of shelves 7b for accommodating various objects are attached to the storage shelf 7 at predetermined intervals in the vertical direction. An operation bar 8 extending in a horizontal direction is attached to a lower front part of the storage shelf 7, and the operation bar 8 is gripped and the storage shelf 7 is moved up and down.

A rotating shaft 9 is rotatably supported by a pair of opposing side plates 5b, and one end of a panta arm 11 is fixed to the shaft end of the rotating shaft 9. One end of a second punter arm 13 is rotatably supported at a position on the side plate 5b at a predetermined distance rearward and upward with respect to the rotation shaft 9, and the punter arm 11 and the second The other end of the arm 13 is rotatably supported on the side plate 7a of the storage shelf 7 such that imaginary lines connecting the respective pivot points of the respective panta arms 11 and the second panta arm 13 form a parallelogram, It constitutes a pantograph mechanism. As a result, the storage shelf 7 is moved with respect to the fixed frame 5 at the time of ascending and descending so that the top and bottom directions always point in the vertical direction.

A torsion spring 15 constituting a weight receiving means is mounted on the end of the rotating shaft 9 on one side plate 5b side, and one end of the torsion spring 15 is provided in an elongated hole 11a formed in the panta arm 11. Is locked. The other end of the torsion spring 15 is freely rotatable with respect to the rotating shaft 9 and is locked by the rotating body 17 whose movement is restricted in the axial direction.

A worm gear 17a is fixed to the rotating body 17, and the worm gear 17a is meshed with a worm shaft 17f rotatably supported by a mounting bracket 17b fixed to the bottom plate 5a. The worm shaft 17
f is connected to the rear end side of the handle shaft 17c rotatably supported by the mounting bracket 17b in parallel with the axis of the worm shaft 17f via gears 17d and 17e.

The worm gear 1 is rotated by rotating a handle (not shown) attached to the handle shaft 17c.
The elastic force of the torsion spring 15 is increased or decreased by rotating the torsion spring 15a in the forward or reverse direction to increase or decrease the diameter of the torsion spring 15. Thus, the elastic force of the torsion spring 15 is appropriately adjusted according to the weight of the object stored in the storage shelf 7.

A gear 23 is fixed to the shaft end of the rotating shaft 9 located on the other side plate 5b side, and a braking device 24 is connected to the gear 23. That is, a braking shaft 27 having an axis parallel to the rotating shaft 9 is rotatably supported on the side plate 5 b on the gear 23 side, and a braking gear 25 provided on the braking shaft 27 is meshed with the gear 23. Thereby, the braking shaft 27 is rotated with the rotation of the rotating shaft 9.

A brake disk 29 is fixed to the brake shaft 27. A pair of left and right operating arms 31a and 3 having one end pivotally supported by the bottom plate 5a is provided on each disk surface of the brake disk 29.
1b, the operating arm 31 facing the disk surface
Braking pads 33a and 33b are attached to the side surfaces a and 31b.

A shaft 35 having an axis in a direction perpendicular to the longitudinal direction of the operating arms 31a and 31b is provided at the tip end side of each of the operating arms 31a and 31b.
b and the other operating arm 31
a so as to extend therethrough.

One end of the shaft 35 has an operating arm 3.
An elastic member 37 such as a compression spring, which is in contact with the outer surface of 1a and whose other end is prevented from coming off with respect to the shaft 35, is attached.

As a result, the operating arms 31a and 31b are constantly urged to rotate toward each other by the elastic force of the elastic member 37, and press the brake pads 33a and 33b against the disk surface.

A cam shaft 39 is rotatably supported on the bottom plate 5a corresponding to the end between the operating arms 31a and 31b, and a cam member 41 is provided on the upper portion of the cam shaft 39 with the operating arm 31a.
・ Attached so as to be located between the distal ends of 31b.
A connection shaft 39a extending in the radial direction is provided below the cam shaft 39, and one end of a brake release wire 43 described later is fixed to the connection shaft 39a.

On the other hand, a pair of left and right swing levers 45 are rotatably supported on the inner surface of the lower part of each side plate 7a of the storage shelf 7, and one arm of each swing lever 45 constitutes a part of braking release means. A braking release bar 47 is mounted in parallel with the operation bar 8. The other arm of the one swing lever 45 located on the side of the gear 23 is bent and formed so as to extend outward through the notch 7c of the side plate 7a.
Is connected to one arm of a link lever 49 which is rotatably supported by the arm.

A brake release wire 43 is connected between the other arm of the link lever 49 and the connection shaft 39a, and the cam is rotated when the brake release bar 47 is pivoted to the operation bar 8 side. The operating arm 3 is formed by the cam member 41 of
With respect to 1a and 31b, the press-contact of the brake pads 33a and 33b with respect to the disk surface is released by increasing the mutual interval between the tips.

The brake release wire 43 is inserted into a tube 43a having one end fixed to a bracket 5c attached to the side plate 5b and the other end fixed to a bracket 7d attached to the side plate 7a.

Next, the operation of the storage rack elevating device 3 configured as described above will be described. 5 to 8, in order to pull out the storage shelf 7 from the inside of the furniture 1 for a high place, the storage shelf 7 is pulled forward while holding the brake release bar 47 together with the operation bar 8 as shown in FIG. Move it down while pulling it out.

When the brake release bar 47 is gripped together with the operation bar 8, the swing lever 4 is rotated by the rotation of the brake release bar 47.
5. The link lever 49 is pivoted in the direction of the arrow shown in the figure to pull the brake release wire 43 to rotate the cam member 41, thereby increasing the distance between the distal ends of the operation arms 31a and 31b by the long diameter portion. As a result, the pressure contact of the brake pads 33a and 33b against the disk surface of the brake disk 29 is released, and the rotating shaft 9 is made rotatable so that the storage shelf 7 can be swung.

When lowering the storage shelf 7 drawn out of the furniture for high places 1, the torsion spring 15 whose one end is locked in the long hole 11 a of the panta arm 11 is moved by the torsion spring 15.
The storage shelf 7 is elastically deformed in a direction in which the elastic force increases with the downward movement, and receives the weight of the storage shelf 7 by the elastic force, and swings the storage shelf 7 almost without load.

The elastic force of the torsion spring 15 must be adjusted according to the weight of the object stored in the storage shelf 7 in advance.
As the adjusting method, when the weight of the storage shelf 7 in which the objects are stored is relatively light, the torsion spring 15 is expanded by the worm shaft 17f and the worm gear 17a which are turned by the turning operation of the handle, and the elasticity is increased. In the case where the weight of the storage shelf 7 in which the objects are stored is heavy, the handle is rotated in the opposite direction to the above to operate the torsion spring 15.
Is adjusted so that its elastic force increases.

Further, since the fixed frame 5 and the storage shelf 7 are connected by the panta arm 11 and the second panta arm 13 whose imaginary lines connecting the respective fulcrum points always maintain a parallelogram, the fixed frame 5 and the storage shelf 7 are in the middle of being pulled out. Controls the posture of the storage shelf 7 so that the top and bottom directions thereof always point in the vertical direction, and prevents objects from jumping out of the storage shelf 7.

Then, the punter arm 11 rotated to the horizontal position with the drawer of the storage shelf 7 is brought into contact with the bottom plate 5a of the fixed frame 5 to restrict the rotation, and the storage shelf 7 is stopped at the lower limit position. .

On the other hand, when the holding of the brake release bar 47 is interrupted during or after the storage shelf 7 is pulled out, the swing lever 45 and the link lever 49 that swing in the opposite directions to the above.
To return the brake release wire 43 to rotate the cam shaft 39 in the opposite direction. As a result, the diameter of the cam member 41 is reduced, and the pair of operating arms 31a and 31b are
By rotating the brake pads 27a and 33b against the disk surface of the brake disk 29 by rotating in the direction approaching each other by the elastic force of the brake 7, the rotation of the brake shaft 27 and therefore the rotation shaft 9 is regulated, and the storage shelf 7 is moved. Stop braking at the position.

Next, in order to return the storage shelf 7 to the high place furniture 1, the brake release bar 47 is gripped together with the operation bar 8, and the brake pads 33a and 33b are pressed against the disk surface of the brake disk 29 in the same manner as described above. Is released to allow the storage shelf 7 to move, and then the storage shelf 7 is returned upward into the furniture for high places 1 while being lifted upward.

At this time, the torsion spring 15 is
Since the elastic force is elastically deformed to increase with the downward movement, the weight of the storage shelf 7 can be complemented by the elastic return force of the torsion spring 15 and the storage shelf 7 can be lifted with a small force.

When the holding of the brake release bar 47 is interrupted even while the storage shelf 7 is being lifted, the brake pads 33a and 33b
The storage shelf 7 is stopped and held at an intermediate position by restricting the rotation of the rotating shaft 9 by pressing the storage shelf 7.

When the storage shelf 7 is lifted upward by the above operation, the storage shelf 7 is stopped in a state where a part of the storage shelf 7 projects slightly forward with respect to the furniture for high places 1. At this time, one end of the torsion spring 15 is locked to the other end in the elongated hole 11a. When the storage shelf 7 is pushed backward in the above state, the one end of the torsion spring 15 is elongated. 1
1a toward the other end, and inserts the storage shelf 7 into the slot 11
It is moved rearward (inside the furniture for high places 1) by the width of “a” and accommodated in the furniture for high places 1.

In this embodiment, the elastic force of the elastic member 37 urges the operating arms 31a and 31b in directions approaching each other to press the brake pads 33a and 33b against the disk surface of the brake disk 29. Movement can be regulated. Further, by receiving at least the weight of the storage shelf 7 by the elastic force of the torsion spring 15, the vertical movement operation of the storage shelf 7 can be performed with a small force,
The storage shelf 7 can be easily moved up and down.

Embodiment 2 In FIGS. 9 to 11, a storage rack elevating device 51 is mounted in each piece of furniture for high places 1 via a rail unit 53 so as to be able to come and go between the inside and the outside. Rail unit 5
Reference numeral 3 denotes a first rail 53a fixed to the lower part of the inner surface of the side plate of the furniture for high places 1, a third rail 53c fixed to the side plate 55 of the storage rack elevating device 51, and a portion between the first rail 53a and the third rail 53c. It has a three-stage structure of a second rail 53b slidably supported.

The rail unit 5 for supporting the storage shelf elevating device 51 so as to be slidable forward in the furniture 1 for high places.
Although a three-stage structure is used as 3, a rail member having a two-stage structure may be used when there is an extra space in the depth of the furniture 1 for high places. In this case, the storage rack elevating device 51
Must be longer than the rails mounted in the furniture for high places 1, but when housed in the furniture for high places 1, the rails escape in the extra space at the back and The storage rack elevating device 51 can be made to be able to appear and disappear.

Rail portions 55a are formed at the front end and the rear end of the opposing inner surface of the side plate 55 in the storage rack elevating device 51, and a storage rack 57 as a movable frame described later is formed on the rail portion 55a in the vertical direction. It is movably supported.

Each of the side plates 55 is formed with an opening 55b extending vertically at an intermediate portion. And each side plate 55
A pair of front and rear guide rods 59 having an axis in the vertical direction are attached to the front part and the rear part, respectively. A balancer 61 as a weight receiving means is supported on each guide rod 59 so as to be slidable in the vertical direction. ing. The balancer 61
Is set at least approximately equal to the weight of the storage shelf 57.

A lever 65 is swingably supported at the lower rear of each side plate 55. One arm 65a of each lever 65 is provided with an elastic member 67 such as a tension spring having one end attached to each side plate 55. The other end is latched.
The lever 65 is always urged by the elastic force of the elastic member 67 in the direction indicated by the solid line arrow.

A shaft 69 having an axis in the horizontal direction is rotatably supported on the other arm 65b of each lever 65, and gears 71 are fixed to both ends of the shaft 69, respectively.
Each gear 71 is always meshed with a horizontal rack gear 73 fixed so as to extend in the front-rear direction on the bottom plate upper surface of the furniture for high places 1 by the elastic force of the elastic member 67.

A regulating lever 75 is provided at the lower rear of each side plate 55.
Are supported to be swingable, and a cam 75 a having a curved surface is provided on the side of the high-grade furniture 1 of the regulating lever 75. The swing angle of each regulating lever 75 is set to the angle between the contact position of the cam 75a with the front surface of the bottom plate of the furniture 1 for high places and the non-interference position when the storage rack elevating device 51 projects from inside the furniture 1 for high places. You.

A storage shelf 57 is supported on the inner surface of each side plate 55 so as to be movable in the vertical direction.
7, one end is attached to the balancer 61, and the other end of the wire 79 turned by the pulley 63 attached to the upper part of the side plate 55 is attached. You. A shelf 81 is mounted between the pair of left and right mounting plates 77, and various objects (not shown) are placed on the shelf 81.
Is placed.

The balancer 61 aims at reducing the force required to move the storage shelf 57 up and down.
It is desirable that the weight of the storage shelf 57 including the objects placed on the shelf board 81 be substantially equal to the total weight thereof. It is necessary to adjust the weight of the balancer 61 according to the first use.

A contact piece 8 is provided at the lower rear of each mounting plate 77.
3 are provided so as to be able to abut against the regulating lever 75. Each contact piece 83 comes into contact with the regulating lever 75 when the storage shelf 57 is moved to the upper limit position of the side plate 55, and the cam 7
5 a is swung to a non-interfering position with respect to the front surface of the bottom plate of the furniture for high places 1.

At the upper rear of each mounting plate 77, a mounting plate 85 is mounted so as to pass through the opening 55b and extend to the rear of the side plate 55, and at the rear of the mounting plate 85, a lever 87 is swingable. Supported. And lever 8
7, the other end of an elastic member 89 such as a tension spring having one end attached to the attachment plate 85 is attached to one arm portion.
The elastic force of the elastic member 89 urges the lever 87 in the direction indicated by the solid arrow in the drawing.

A rotating shaft 91 extending in the horizontal direction is rotatably supported on the other arm of each lever 87.
Gears 93 are attached to both ends of the shaft 1 at the rear of the side plate 55 so as to extend vertically.
Are fixed so as to mesh with each other.

The brake disc 29 of the first embodiment is mounted on the rotating shaft 91, and the operating arms 31a and 31b, the brake pads 33a and 33b of the first embodiment,
The elastic member 37, the cam shaft 39, and the cam member 41 are provided respectively, and constitute a braking mechanism. The cam shaft 39 is fixed with a wire 101 connected to a brake release lever 99 which constitutes a part of a brake release means which is pivotally supported at a front portion of the side plate 55.

Next, the operation of the storage rack elevating device 51 configured as described above will be described. When the storage shelf lifting / lowering device 51 supported by the rail unit 53 is pulled out in the furniture for high places 1, the storage shelf lifting / lowering device 51 is moved to the first rail 53a.
And it is drawn out to the front side of the furniture for high places 1 by the second rail 53b sliding on the third rail 53c.

At this time, the respective gears 71 meshing with the respective horizontal rack gears 73 attached to both sides of the bottom plate in the furniture for high places 1 are connected by the shaft 69 and rotate synchronously, so that the storage shelf elevating device 51 from the furniture for high places 51 When pulling out, equalize the amount of left and right drawers to prevent tilting,
Enables smooth withdrawals.

Note that the storage rack elevating device 51 is used for the furniture 1 for high places.
When pulled out to the front side of the first to third rails 53a
The removal of the second rail 53b from the first and third rails 53a and 53c is regulated by the rollers attached to the first to third rails 53c.

Next, when the storage shelf 57 is moved downward with respect to the side plate 55 while gripping the brake release lever 99 in the above state, the regulating lever 75 moves the contact piece 83 of the mounting plate 77 which moves downward. Since the contact is released, the cam 75a swings downward by its own weight to position the cam 75a on the front surface of the bottom plate of the furniture 1 for high places. Thus, when the storage shelf 57 is pulled down, the storage shelf lifting / lowering device 51 is prevented from returning to the high place furniture 1, and the storage shelf 57 can be pulled down.

Further, the cam member 41 is rotated by the wire 101 which is pulled in accordance with the gripping of the brake release lever 99, and the operation arm 31 a.
The pressure contact between the brake pads 33a and 33b against the disk surface of the brake disk 29 is released by enlarging the space between the distal end portions of the brake disk 29, and the rotation shaft 91 is made rotatable.

When the storage shelf 57 is lowered in the above state, the rotating shaft 91 is synchronously rotated by the gears 93 meshing with the respective vertical rack gears 95, so that the left and right lowering amounts of the storage shelf 57 are equalized to prevent the storage shelf 57 from tilting. And enable a smooth descent. In addition, each balancer 61 is moved upward as the storage shelf 57 descends.

When the brake release lever 99 is released from gripping and the cam member 41 is returned to its original position while the storage shelf 57 is being lowered and when the storage shelf 57 has been lowered to a predetermined position, the operating arm 31a
31b is rotated in a direction approaching each other by the elastic force of the elastic member 37 to press the brake pads 33a and 33b against the disk surface of the brake disk 29 to restrict the rotation of the rotary shaft 91.

Then, when an object to be stored is placed on the lowered shelf board 81, or after the object on the shelf board 81 is taken out, the storage shelf 57 is pushed upward with the brake release lever 99 being gripped. The storage shelves 57 rotate in synchronism with the vertical rack gears 95 and engage with the gears 93 in the same manner as described above.
Accordingly, the pushing-up amount of each mounting plate 77 is made substantially equal, and the storage shelf 57 can be raised smoothly.

Further, since the balancer 61 that moves downward with the pushing of each storage shelf 57 and at least the weight of the storage shelf 57 are balanced, the storage shelf 57 can be pushed up with a small force.

When the grip of the brake release lever 99 is released while the storage shelf 57 is being lifted or when the storage shelf 57 is raised to a predetermined position, the brake pads 33a and 33b are braked by the elastic force of the elastic member 37 in the same manner as described above. The rotation of the rotating shaft 91 is restricted by being pressed against the disk surface of the disk 29,
7 is stopped.

When each of the storage shelves 57 is moved to the upper limit position, the contact piece 83 of each mounting plate 77 comes into contact with each of the regulating levers 75, and the regulating lever 75 swings in the opposite direction. As a result, the cam 75a is moved to a position where it does not interfere with the front surface of the bottom plate of the furniture for high places 1 so that the storage shelf 57 can be pushed into the furniture for high places 1.

Modified embodiment In the above description, the operating arms 31a and 31b, each of which is rotatably supported at one end, are always urged by the elastic force of the elastic member 37 in the direction in which the brake pads 33a and 33b are pressed against the disk surface of the brake disk 29. Although the configuration is such that the operating arms 31a and 31b themselves are formed by spring members, the brake pads 33a and 33b are always pressed against the disk surface of the brake disk 29 by the elastic force of the operating arms 31a and 31b. Good.

[0063] In the above description, the elastic member 37 is attached via the shaft 35, and the operating arm 31a
The elastic member 37 is attached to the distal end side from the center of rotation of the operating arms 31a and 31b, and the elastic member 37 is attached to the operating arms 31a and 31b in a direction approaching each other by its tensile elasticity. It may be a configuration that vibrates.

[0064] In the above description, the operating arms 31a and 31b are rotated by the cam member 41 provided on the upper portion of the cam shaft 39 in a direction in which the operating arms 31a and 31b are separated from each other by the elastic force of the elastic member 37 or by the elastic force. , Camshaft 3
9 itself is formed on an eccentric shaft, and the operating arm 3 is formed by the eccentric shaft.
It is good also as composition which rotates 1a and 31b mutually.

[0065]

According to the present invention, the storage shelf can be reliably stopped at an arbitrary position while the storage shelf is being moved up and down extremely. In addition, the storage shelf can be reliably stopped during ascent and descent to prevent stored items from jumping out and to ensure the safety of the worker.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a storage shelf elevating device installed in furniture for high places.

FIG. 2 is a schematic perspective view schematically showing a load variable mechanism.

FIG. 3 is a schematic perspective view showing a braking device.

FIG. 4 is a plan view of the braking device.

FIG. 5 is a schematic side view showing a state where a storage shelf is moved up and down.

FIG. 6 is a schematic perspective view showing a load adjustment state.

FIG. 7 is a schematic perspective view showing a brake release state.

FIG. 8 is an explanatory diagram showing a state where the storage shelf is pushed into the furniture for high places.

FIG. 9 is an overall perspective view of the storage rack elevating device.

FIG. 10 is a perspective view showing a gear meshing mechanism with a horizontal rack gear and a regulating lever.

FIG. 11 is a perspective view showing a braking device.

[Explanation of symbols]

1-furniture for high places, 3-storage rack elevating device, 5-fixed frame, 7-storage rack, 9-rotation axis, 11-panta arm, 1
3-second panta arm, 15-torsion spring constituting weight receiving means, 27-brake shaft, 29-brake disc,
37-elastic member, 47-brake release bar

Claims (13)

[Claims] 1. A storage shelf supported up and down with respect to a fixed frame fixed in storage furniture, a rotating shaft rotatably supported by the fixed frame and rotated with movement of the storage shelf. A braking disk that rotates integrally with the rotating shaft, a braking member that contacts and separates from the disk surface of the braking disk,
An elastic member that normally urges the braking member in a direction of pressing against the disk surface of the braking disk, and a brake release unit that releases the pressing of the braking member against the disk surface of the braking disk against the elastic force of the elastic member. Storage shelf lifting device. 2. The storage device according to claim 1, wherein the fixed frame and the storage shelf are connected by a pantograph mechanism, and a rotation shaft is fixed to a panta arm of the pantograph mechanism, and the rotation shaft is rotated as the storage shelf moves up and down with respect to the fixed frame. Storage shelf elevating device made possible. 3. The fixed frame according to claim 1, wherein the fixed frame is supported so as to be able to protrude forward with respect to the storage furniture via a telescopic rail, and the storage shelf is supported movably in the vertical direction with respect to the fixed frame. A storage rack elevating device in which a rotation shaft rotatably supported by the fixed frame is rotatably provided as the storage rack moves up and down with respect to the frame. 4. The weight of the storage shelf, wherein one end of the rotation shaft is locked to the storage shelf and the other end is fixed, and the rotating shaft is urged by an elastic force corresponding to the weight of the storage shelf. Storage shelf elevating device with receiving member. 5. The storage rack lifting device according to claim 3, wherein the rotating shaft rotatably supported by the fixed frame meshes with a rack gear provided on the storage rack, and rotates as the storage rack moves up and down with respect to the fixed frame. 6. The storage frame according to claim 3, wherein a weight member corresponding to at least the weight of the storage shelf is supported on the fixed frame so as to be movable in the vertical direction, and the weight member is connected to the storage shelf. A storage rack elevating device capable of receiving the weight of a storage rack by moving a weight member in a vertical direction. 7. The weight receiving member according to claim 4, wherein the weight receiving member comprises a torsion spring, and one end of the torsion spring is engaged with the storage shelf and the other end is rotatably supported with respect to the rotation shaft. A storage rack elevating device that is locked to a rotating member, and the rotating member is always restricted from rotating with respect to a rotation axis. 8. The storage rack elevating device according to claim 1, wherein the brake disk is fixed to a rotating shaft. 9. The storage rack raising / lowering device according to claim 1, wherein the brake disk is fixed to a brake shaft rotatably supported on a fixed frame, and the brake shaft and the rotation shaft are connected by gears so as to be rotatable. 10. The brake releasing means according to claim 1, wherein the brake releasing means is slidably disposed on an operating lever to which the braking member is attached, and rotates the operating lever when lifting and lowering the storage shelf with respect to the fixed frame. A storage shelf elevating device comprising a cam member for releasing the pressure contact of the braking member against the disk. 11. A storage rack elevating device according to claim 10, wherein the operating lever is always urged by the elastic force of the elastic member in the direction in which the braking member is pressed against the disk surface. 12. The storage rack lifting / lowering device according to claim 10, wherein the operating member is always made of an elastic member which urges the braking member in a direction of pressing the disk against the disk surface. 13. A brake release lever provided on a storage shelf, wherein the brake release lever and the cam member are connected by a wire, and the cam member is rotated by a wire pulled by operating the brake release lever. Storage rack elevating device with actuating lever rotatable.