JP3247521B2 - Lowering damper device for lifting storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a descending damper device for a storage unit which is used for storing various items in a kitchen or the like. The present invention relates to a descending damper device for an ascending / descending storage unit that limits the descending speed of the ascending / descending storage unit.

[0002]

2. Description of the Related Art A descending damper device for such a lifting storage unit is known from Japanese Patent Application Laid-Open No. 61-154610.

In this device, a storage portion is supported between the free ends of parallel links on both sides individually pivotally supported on inner surfaces of both sides of the storage board, and the storage portion is stored in a storage position on the storage board and a lower front portion of the storage board. It is possible to move up and down between the unloading position and the unloading position. By using a tension spring between the link and the fixed part, the link pair can lower the storage part at a low speed, and the storage part is in the storage position in the inclined position where the parallel link is inclined backward from the vertical position. By supporting it, it is possible to prevent it from inadvertently protruding forward even in the event of an earthquake or the like and dropping to the take-out position, thereby ensuring use safety.

[0004]

However, in the above-mentioned conventional configuration, the structure is such that the lowering speed of the storage section is limited only by operating the tension spring between the link and the fixing section. If the weight with the things to store is large,
If a strong and long spring is not used, a sufficient damper function cannot be exhibited.When the storage unit is lowered to the take-out position, the parallel link is greatly inclined forward so that the weight of the storage unit increases the descent speed. Until it works, the resistance becomes too large, making it difficult to use.

[0005] In addition, although the use of the storage portion can be supported by supporting the storage portion in the storage position in the inclined position in which the parallel link is inclined rearward from the vertical position, the extension spring is provided with a tension spring. It works as a damper in the whole process of lowering to the take-out position after raising from the inclined position to the vertical position, so the parallel link will lift the storage unit until the parallel link changes from the backward inclined position to the vertical position, and also pull This is done against the spring, which requires a large force to start moving a stationary heavy object. It has become something.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and an object of the present invention is to provide a descending damper device for a vertically movable storage unit which ensures sufficient safety and is convenient for use. .

[0007]

According to the present invention, in order to achieve the above-mentioned object, a lowering damper device for a storage part for raising and lowering the storage part is provided by a parallel link which is raised and lowered, and a lower part in front of the storage position. In a descending damper device for an ascending / descending storage part, which restricts the descending speed of an elevating / housing part supported so as to be able to ascend and descend to a take-out position pulled out to a take-out position, a fixed part pivotally supported so that the link of a parallel link can be raised and lowered A first aspect is that a damper is provided, and the damper is connected to a pivot that pivotally supports the link and rotates integrally with the link via a speed increasing gear that transmits the rotation of the pivot to the damper side at an increased speed. A rotary damper is provided on a fixed portion pivotally supported so that the link of the parallel link can be raised and lowered, and the rotary shaft and the rotary damper which pivotally support the link and are rotated by the same body are rotated. One end of the helical spring at a position halfway down in the downward operation where the helical spring is wound around the pivot or the shaft associated therewith to lower the storage portion of the parallel link. A push pin is provided on the pivot so as to rotate or interlock with the pivot so as to start pushing toward the charge side, and a spring receiver for receiving the other end of the spiral spring from a direction opposite to the charge direction is provided on the fixed portion. This is a second feature of the present invention.

In these, it is preferable that the rotation transmitting means is a speed increasing gear for increasing the rotation of the pivot and transmitting the rotation to the rotary damper, and the push pin can adjust the position of the pivot or a member interlocked therewith. It is preferable to provide them as described above.

Further, a plurality of spiral springs are provided so as to work between the same or individual push pins and spring supports, so that the contact relationship with each push pin or spring support can be released as appropriate. Can be.

[0010] The rotary damper is preferably an oil damper.

[0011]

According to the first feature of the descending damper device for the storage part for lifting and lowering of the present invention, the storage part is moved between the storage position by the undulation of the parallel link and the take-out position drawn out to the front lower part of the storage position. To support so that you can go up and down,
A rotary damper provided on a fixed portion pivotally supported so that the link of the parallel link can be raised and lowered, and a pivot that pivotally supports the link and rotates integrally with the link are transmitted by increasing the rotation of the pivot to the damper side. Since the rotation of the pivot shaft linked to the parallel link falling when the storage unit is pulled out from the storage position to the take-out position and lowered is transmitted to the rotary damper because the speed is increased, The rotary damper strengthens the damper action by the increased speed and exerts on the parallel link via the pivot, and the lowering speed of the storage part is sufficiently restricted by the rotary damper with a small damper capacity to ensure safety,
When the storage unit is pulled out from the storage position to the removal position due to the small damper capacity, it is pulled out and lowered, but when the parallel link is inclined forward greatly, the weight of the storage unit works to increase the descent speed. It can be easy to use without exerting a large resistance.

[0012] In the above configuration of the second feature of the descending damper device for the ascending / descending storage section of the present invention, the storage section is moved between the storage position by the undulation of the parallel link and the take-out position where the storage section is pulled out to the lower front part of the storage position. A rotary damper provided on a fixed portion pivotally supporting the link, while supporting the link so that it can be raised and lowered, always works via a rotation transmitting means between the link and a pivot which is integrally rotated by the link. On the other hand, a helical spring wound around the pivot or an axis interlocking with the pivot, from the middle position of the downturning operation for lowering the storage portion of the parallel link, a push pin that rotates or interlocks with the pivot and is fixed to the fixed side. The first half in which the weight of the storage unit does not significantly affect the lowering speed when the parallel link draws and lowers the storage unit from the storage position to the unloading position because the charge starts to be charged between the spring receiver and the storage unit and functions as a damper. In exerting minimal damping action required by one rotary damper, it is possible to easily pull out down to the intermediate position while ensuring safety,
In addition, in the latter half, where the weight of the storage unit greatly affects the lowering speed, in addition to the rotary damper, the vine spring acts as a damper to sufficiently reduce the effect of the weight of the storage unit and obtain a safe predetermined lowering speed. It can be easily lowered to the take-out position, and can be used easily.

If the rotation transmitting means is a speed-increasing gear for increasing the rotation of the pivot and transmitting the rotation to the rotary damper, the pivot linked to the falling of the parallel link when the storage portion is pulled out from the storage position to the removal position and lowered. The rotation of the rotary damper is increased and transmitted to the rotary damper, and the rotary damper strengthens the damper action by the increased speed and exerts on the parallel link via the pivot, so that the rotary damper having a small damper capacity has The lowering speed is sufficiently restricted to ensure safety, and the storage section is pulled out from the storage position to the take-out position due to the small damper capacity. The drawing operation does not exert a large resistance until it works to increase the speed, so that it can be made easy to use.

Further, if a plurality of spiral springs are provided so as to act between the same or individual pushing pins and spring supports, and the contact relationship with each of the pushing pins or spring supports can be appropriately released, By operating a number of helical springs in accordance with the weight of the storage section, even if the weight of the storage section fluctuates, it is easy to use because the damper performance is always easy enough.

If the rotary damper is an oil damper, the structure is simple and compact, so that it can be easily incorporated as a descending damper device.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a lowering damper device of the present invention.

FIGS. 1 to 6 show a first embodiment of the present invention. This embodiment shows a case of a storage device in which a storage unit elevating and lowering support unit A is stored in a storage board B as shown in FIGS. I have.

As shown in FIGS. 4 to 6, the storage unit elevating and lowering support unit A connects the parallel links 1 and 2 on both sides for supporting the storage unit C between the free ends to the left and right mounting bases 3 and 4. The pivots 5, 6 which are individually pivotally supported and which oppose the opposed front links 1 a, 2 a of the parallel links 1, 2 on both sides and which rotate together with the same are integrally connected by a coupling shaft 17. .
As a result, the mounting bases 3 and 4 are integrated, and the parallel links 1 and 2 on both sides are interlocked.

Therefore, since the parallel links 1 and 2 on both sides pivotally supported by the mounting bases 3 and 4 constitute a unitized lifting support unit A for a storage unit, the entire unit is treated as one unit and each unit is handled as one unit. Mounting bases 3 and 4 for storage board B
Can be easily attached to the inner surfaces on both sides by screws 10 or the like without the need for a special alignment work between the two. When the pivots 7 and 8 of the rear links 1b and 2b are also connected and integrated, the rigidity of integration of the mounting bases 3 and 4 and the interlocking rigidity of the parallel links 1 and 2 on both sides can be further increased.

The parallel links 1 and 2 are provided between the free ends of the front and rear links 1a and 1b, and between the links 2a and 2b.
Between the free ends of the mounting seats 1c, 2c
In a state where the storage unit C is not supported by the connection unit c, a complete parallel link on the storage unit lift support unit A side is formed. Therefore, the parallel link 1,
In order to support the storage portion C between the two free ends, the mounting seats 1c and 2c may be mounted on both side plates 9 of the storage portion C with screws 10 or the like.

Due to such an assembling structure, the storage device of this embodiment, in which the storage unit lifting support unit A is stored in the storage board B and the storage unit C is supported so as to be able to move up and down, is easily and quickly assembled with a small number of work steps. be able to. The storage section C supported by the storage section elevating and lowering support unit A in the storage board B is stored by the parallel links 1 and 2 on both sides being raised and lowered on the mounting bases 3 and 4 about the pivots 5 to 8. The storage board is moved up and down between a storage position located in the board B as shown in FIGS. 1 and 2 and a take-out position in which the storage board B is pulled out and lowered as shown in FIG.

Further, since the parallel links 1 and 2 on both sides cooperate with each other, there is no difference in the support and movement of the storage portion C by the parallel links 1 and 2 on both sides, and the parallel links 1 and 2 on both sides are free. Even if the storage portion C supported between the ends is a simple low-rigidity type such as the cage type shown in the drawing, the storage portion C exhibits sufficient support rigidity to prevent the storage portion C from being twisted or shaken. , Can be made light and small as a whole.

On the other hand, the pivots 7, 8 pivotally supporting the rear links 1b, 2b of the parallel links 1, 2 and rotating together with them.
Between the mounting bases 3 and 4, damper mechanisms 11 and 12 for operating the speed of lowering the storage portion C of the parallel links 1 and 2 to the take-out position are operated. This damper mechanism 1
Even if only one of the pivots 7, 8 works on one of the pivots 7, 8, the parallel links 1, 2 on both sides can work together. Even if the two damper mechanisms 11 and 12 are shared and operated, they can be equally applied to the parallel links 1 and 2 on both sides regardless of whether they are of the same type.

The damper mechanisms 11 and 12 are provided with mounting bases 3a having both ends of the mounting bases 3 and 4 bent outward.
It is accommodated and operated in the space between the spaces 4a and between the mounting seats 3a and between the mounting seats 4a.

The damper mechanisms 11 and 12 are operated by utilizing the rotation of the pivots 7 and 8, and are mounted on the support structure of the links 1a and 2b separated from the links 1a and 2b.
It can be provided compactly by utilizing the rotation operations of ~ 8.

More specifically, one damper mechanism 11 operates a spiral spring 21 and a rotary oil damper 22, and the other damper mechanism 12 operates only a spiral spring 31.

The helical spring 21 of the damper mechanism 11 is wound around a portion of the pivot 7 projecting inward from the mounting plate 20. As shown in FIGS.
A large diameter is received by a locking member 25 welded to the inner surface of the mounting plate 20, and the other end 21 b of the mounting plate 20 is rotatably mounted on the pivot 5 between the mounting plate 20 and the mounting base 3. And with a play S against the push pin 24 attached to any of the plurality of attachment holes 23 on the gear 26 of FIG.

As a result, when the gear 26 rotates in conjunction with the operation in which the parallel links 1 and 2 fall down in the direction of the arrow shown in FIG. First, the end 21 of the spiral spring 21
b, but the play S disappears at a predetermined intermediate position where the inclination of the parallel links 1 and 2 increases and the weight of the storage section C increases the downward movement speed. The spiral spring 21 is gradually charged between the one end 21a which is pushed by the first member 21b and the one end 21a received by the locking member 25, and the weight of the storage portion C increases the descending speed. Even if the influence is caused as described above, the influence is reduced by the resistance at the time of the charging operation, so that the parallel links 1 and 2 can descend at a low speed.

The oil damper 22 is mounted on the inner surface of the mounting plate 20, and the pinion gear 27 mounted on the rotary shaft 20a shown in FIG. The rotation speed is increased and transmitted to the rotation shaft 22a.

Therefore, the rotating blade 22b attached to the rotating shaft 22a and the braking blade 22c in the oil damper 22
Is increased, and the rotational resistance of the rotary blade 22b by the oil sealed in the oil damper 22 is increased. Thus, the pulling speed from the position where the parallel links 1 and 2 start to fall down from the standing state to the position where the spiral spring 21 starts to work can be sufficiently limited with a small damper capacity.

The spiral spring 31 of the other damper mechanism 12
Is provided substantially in the same manner as the spiral spring 21 by the pivot 8 and the rotating disk 32 mounted on the pivot 8 instead of the gear 26. The difference from the case of the spiral spring 21 is that one end 31a of the spiral spring 31 is received by a locking bolt 33 screwed to the mounting plate 20.

By rotating the locking bolt 33, the locking bolt 33 advances to a position facing the end 32a,
It can be retracted from this facing position. By setting the locking bolt 33 to the retracted position, the other end 31 b of the spiral spring 31 is moved to the pushing pin 2 on the turntable 32.
4, the helical spring 31 is only idled around the pivot 8 because the locking bolt 33 does not receive the end 31a even if it is pushed toward the one end 31a. 2, does not have a damper function. However, by setting the locking bolt 33 to the advanced position, the end 31b of the spiral spring 31 is moved by the pushing pin 24 to the end 31b.
a, the end 31a is fixed to the locking bolt 3
Since the spring 3 receives and does not escape, the spiral spring 31 is charged between both ends 31a and 31b, and exerts a damper function on the parallel links 1 and 2 like the spiral spring 21.

Accordingly, when the damper mechanism 12 is operated or not operated by moving the locking bolt 33 forward or backward, the damper function can be enhanced or weakened according to the weight of the object stored in the storage section C. . However, a plurality of such spiral springs can be mounted on the same pivot and selectively operated.

The gear 26 is provided with an arc-shaped long hole 26a through which a stopper pin 34 firmly mounted between the mounting base 3 and the mounting plate 20 passes.
At the position of the parallel links 1 and 2 where the storage section C descends to the removal position, the end of the elongated hole 26 a is
To prevent the parallel links 1 and 2 from rotating further downward. This prevents the storage section C from being excessively lowered below the predetermined take-out position.

The connecting shaft 17 connecting the pivots 5 and 6 is, for example, a pipe member as shown in the figure, and is screwed into the end portions 5a and 6a projecting from the mounting bases 3 and 4 of the pivots 5 and 6. The connection shaft 17 is fixed by 35 so that different lengths of the connection shaft 17 can be selectively used or replaced. Accordingly, it is possible to support the storage boards B having different lateral sizes and to support the storage section C having a size suitable for the storage boards B so as to be able to move up and down. Between the lower front portions of both side plates 9 of the storage section C, a handle 9a for elevating operation is provided.
Is installed.

On the inner surfaces on both sides of the storage board B, screw holes 36 for mounting the respective mounting bases 3 and 4 are provided in multiple stages, and the height of the storage board B corresponds to the height of the storage board elevating support unit A. When the height of the storage unit C is higher than the total height in a state where the storage unit C is supported, the mounting height of the storage unit lifting support unit A to the storage board B can be freely changed according to the height of the user. .

FIGS. 7 and 8 show a descending damper device for a vertically movable storage section as a second embodiment of the present invention. In this embodiment, the storage section C is supported and stored so as to be able to move up and down between the storage position and a take-out position pulled out to the lower front part of the storage position by the parallel links 1 and 2 of the storage section elevating support unit A. This is common to the first embodiment in that the damper mechanism 11 that accommodates and attaches to the board B and limits the lowering speed of the accommodating portion C is operated.

In this embodiment, in particular, the parallel link 1 is shown in FIG.
As shown in FIG. 8A, the storage unit C is supported at the storage position in an inclined position inclined backward from the vertical position, and from this inclined position, the storage unit C is moved to a position immediately before the vertical position shown in FIG. A play is provided with the damper mechanism 11 up to a certain position. Specifically, as shown in FIG. 7B, the gear 26 and the pivot 7 in the rotary damper 22 of the damper mechanism 11 are used.
Is provided with a play SS in a predetermined rotation range.

Accordingly, the storage section C is supported so as to be able to move up and down between the storage position and the take-out position pulled out to the front lower portion of the storage position by the undulation of the parallel links 1 and 2. However, as shown in FIG. 7A, since the storage unit C is supported at the storage position in an inclined position inclined rearward from the vertical position, the parallel links 1 and 2 are formed by the weight of the storage unit C alone. Since the rotating moment acts rearward, the storage portion C does not inadvertently lift while rotating the parallel links 1 and 2 from the backward inclined posture to the vertical posture even in the event of an earthquake or the like. Therefore, safety in use can be achieved.

In addition, from the rearward inclined position to a position immediately before the vertical position or a position where the vertical position becomes almost vertical, the link 1b of the parallel links 1 and 2 is pivotally supported by the pivot shaft 7gear 26a. By having the play SS between the storage portions C in the storage position, the parallel links 1 and 2
Until the vertical posture shown in FIG. 8A or almost the vertical posture, and until the play SS disappears as shown in FIG. 8B, the spiral spring 21 of the damper mechanism 11 does not work, of course. It is easy to use because it can be pulled out lightly without resistance by the rotary damper 22.
When the parallel links 1 and 2 reach the vertical position immediately before or after the parallel links 1 and 2 reach almost the vertical position, the rotary damper 22 of the damper mechanism 11 operates in the same manner as in a normal case. There is no particular.

[0041]

According to the first feature of the descending damper device of the lifting storage portion of the present invention, between the storage position and the take-out position where the storage portion is pulled out to the lower front part of the storage position by the undulation of the parallel link. In order to support so that it can go up and down,
Rotation of a pivot that pivotally supports the link of the parallel link and rotates together with the link when pulling out the storage portion from the storage position to the removal position and lowering the rotation is provided on a fixed portion that pivotally supports the link via a speed increasing gear. The rotational speed of the rotary damper is increased by the speed increase and transmitted to the parallel link via the pivot axis, and the lowering speed of the storage section is sufficiently limited by the rotary damper having a small damper capacity. In order to secure safety and to lower the storage unit from the storage position to the removal position due to the small damper capacity, the parallel link is greatly inclined forward so that the weight of the storage unit increases the descending speed. It can be easily used without exerting a large resistance on the drawing operation until it works.

According to the second feature of the descending damper device for the up-and-down storage section of the present invention, the storage section is raised and lowered between the storage position by the undulation of the parallel link and the take-out position where the storage section is pulled out to the lower front part of the storage position. To the extent possible, a rotary damper pivotally supports the link and always works via a rotation transmitting means between the link and the pivot which is co-rotated therewith, while the spiral spring is used to accommodate the parallel link. In the first half of the rotary damper, when the parallel link pulls out the storage unit from the storage position to the take-out position and lowers the weight of the storage unit when the parallel link pulls the storage unit from the storage position to the take-out position, it does not significantly affect the lowering speed. With one, the required minimum damper action is exhibited, and it can be easily pulled out and lowered to the middle position while ensuring safety. In the second half, which has a great influence, in addition to the rotary damper, a spiral spring works to sufficiently reduce the influence of the weight of the storage unit and obtain a safe predetermined descent speed, and it is possible to easily descend to the unloading position. It can be easy to use.

In this case, if the rotation transmitting means is a speed increasing gear for increasing the rotation of the pivot and transmitting the rotation to the rotary damper, the same effect as in the first feature can be further exhibited. Also, a plurality of spiral springs are provided so as to work between the same or individual push pins and spring supports, and the contact relationship with each push pin or spring receiver is appropriately released to reduce the weight of the storage portion. When a corresponding number of spiral springs are operated, even if the weight of the storage portion fluctuates, it is easy to use since a sufficient damper performance can be easily obtained.

In the first and second aspects, if the rotary damper is an oil damper, the structure is simple and small, so that it can be easily incorporated as a descending damper device.

[Brief description of the drawings]

FIG. 1 is a front view showing a storage device using a descending damper device as a first embodiment of the present invention.

FIG. 2 is a sectional view of the storage device of FIG. 1;

FIG. 3 is a longitudinal sectional view showing a state where a storage unit of the storage device of FIG. 1 is pulled out from a storage board and lowered.

FIG. 4 is a perspective view showing a storage unit elevating support unit used in the storage device of FIG. 1;

FIG. 5 is a side view showing a pivotal support structure of one parallel link and a damper mechanism of the storage unit elevating support unit of FIG. 1;

6 is a cross-sectional view of the damper mechanism shown in FIG.

FIG. 7 is a sectional view of a storage device using a descending damper device according to a second embodiment of the present invention, and a sectional view showing a state of play between a pivot of a link and a damper mechanism.

8 is a cross-sectional view showing a state where the storage unit of the apparatus shown in FIG. 7 is being pulled out, and a cross-sectional view showing a state of play between the pivot of the link and the damper mechanism.

[Explanation of symbols]

 Reference Signs List A lifting support unit for storage section B storage board C storage section S, SS play 1,2 parallel link pair 1a-2b link 3,4 mounting base 5-8 pivot 10,35 screw 11,12 damper mechanism 17 connecting shaft 26 , 27 Speed-up gear

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-7636 (JP, A) JP-A-4-19232 (JP, U) JP-A-4-56938 (JP, U) JP-A-4-7638 48669 (JP, U) Actually open 1981-11035 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47B 51/00 501 A47B 77/04

Claims (3)

(57) [Claims] 1. An ascending / descending storage portion for restricting a lowering speed of an ascending / descending storage portion which is supported so that a storage portion can be moved up and down between a storage position and a take-out position pulled out to a lower front part of the storage position by a parallel link that rises and falls. rotation Den in descending damper device, the rotary damper is provided on the fixed portion which is pivotally supported to be able undulating link of the parallel link, pivotally pre Symbol link and the pivot being this rotated together with said rotary damper
The pivot or the shaft associated therewith
Wrap the helical spring around the parallel link storage section
At the halfway point of the fall-down operation to lower
Axis so that one end starts pushing toward the charge side
The push pin can be adjusted on the member that rotates or interlocks with the body.
So that the other end of the spiral spring is
Secure the spring catch that catches from the opposite direction to the charging direction.
A descending damper device for a lifting storage unit, which is provided in a fixed part. 2. An ascending / descending storage portion for restricting a lowering speed of an elevating / lowering storage portion supported so that a storage portion can be moved up and down between a storage position and a take-out position pulled out to a lower front part of the storage position by an undulating parallel link. in descending the damper device, the rotary damper is provided on the fixed portion which is pivotally supported to be able undulating link of the parallel link, and pivotally support the link and therewith the pivot being rotated together with said rotary damper, the pivot
Speed-up gear that increases the speed of rotation and transmits it to the rotary damper.
One of the helical springs at a position in the middle of a downward operation in which the helical spring is wound around the pivot or the shaft associated therewith to lower the storage portion of the parallel link. A push pin is attached to the member that rotates or interlocks with the pivot so that the end of the
A descending damper device for a lifting storage unit, wherein the lower end is provided so as to be adjustable in position, and a spring receiver for receiving the other end of the spiral spring from a direction opposite to the charging direction is provided on the fixing unit. 3. The helical spring may be provided with the same or individual pushing pin.
Are provided so as to work between the
The contact with the moving pin or spring receiver can be released as appropriate.
The descending damper device for a lifting storage unit according to claim 1 .