JP3652001B2 - Elevating storage device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage device that stores various items in a kitchen or the like, and more particularly to a liftable storage device that moves a storage part up and down inside and outside a storage cabinet.
[0002]
[Prior art]
As a conventional storage device of this type, for example, the one disclosed in Japanese Patent Laid-Open No. 7-148037 is known. Referring to FIG. 13, the lifting support device for the storage portion in the storage device will be described. The mounting base 61 is fixed to the inner surfaces on both sides of the storage cabinet (not shown), and the parallel links 62 are respectively connected to the mounting base 61. Is pivotally supported, and both side surfaces of a storage portion (not shown) are attached to a mounting plate 63 to which the free end portions of the parallel links 62 are connected. A mounting plate 64 is fixed to the mounting base 61 with a gap on the back side thereof, and a pivot shaft 66 fixed to one of the links 65a of the parallel link 62 is passed through the mounting base 61 and the mounting plate 64 so as to pass through them. A large gear 67 fixed to a pivot shaft 66 is disposed between the mounting base 61 and the mounting plate 64. A vine spring 68 is disposed on the outer periphery of the end of the pivot shaft 66 protruding to the back side of the mounting plate 64, and one end 68a is engaged with a locking member 69 fixed to the mounting plate 64, while the other end 68b is one side. When the large gear 67 rotates in conjunction with the link 65a, it is configured to engage with a push pin 70 projecting from the large gear 67. It should be noted that the storage portion is set so that the rotation range of an appropriate angle from the rising end where the storage portion is stored in the storage cabinet 60 is a play range where the other end 68b of the vine spring 68 and the push pin 70 are not engaged. Can be moved lightly. A rotary damper 71 is mounted on the back surface of the mounting plate 64, and a pinion 72 fixed to the shaft is meshed with the large gear 67. When the large gear 67 rotates in conjunction with one link 65a, the speed is increased. The damper 71 is configured to rotate.
[0003]
The pivot shaft 73 of the other link 65b of the parallel links 62 on both sides is rotatably supported by the bearing portion of the mounting base 61 and protrudes from the surface of the mounting base 61. Both ends of 74 are externally fitted and connected and fixed by connecting pins 75 or screws passing therethrough so that the parallel links 62 and 62 on both sides rotate in synchronization.
[0004]
[Problems to be solved by the invention]
By the way, in the configuration of the above conventional lifting storage device, the connecting shaft 74 can be attached and detached before attaching the mounting base 61 to the inner side surface of the storage cabinet, and it can be disassembled and packed compactly at the time of transportation or stocking. In addition, by selecting the connecting shaft 74 having an appropriate length according to the lateral length of the storage cabinet, the lifting support device having the same specification can be applied to the storage cabinet having various lateral lengths. However, since the connecting shaft 74 cannot be detached after being installed in the storage cabinet, the connecting shaft 74 is used when, for example, a storage shelf is further suspended from the lower part of the liftable storage device. There were inconveniences, such as sometimes getting in the way.
[0005]
In view of the above-described conventional problems, the present invention provides an elevating storage apparatus that can attach and detach an interlocking connecting shaft that rotates these parallel links in synchronization with each other even when elevating support apparatuses are installed on both inner sides of the storage cabinet. The purpose is to do.
[0006]
[Means for Solving the Problems]
The lifting storage device of the present invention connects the bases of one link of both parallel links with an interlocking connecting shaft so that the parallel links of the lifting support devices on both sides rotate synchronously, and With the lifting support device installed , a detachable coupling part is provided that detachably couples the interlocking connection shaft to the link, and the detachable connection part makes the interlocking connection shaft detachable in a direction perpendicular to the axial direction of the interlocking connection shaft. It is possible to remove the interlocking connecting shaft even after both lifting support devices are installed in the storage cabinet, and the interlocking connecting shaft does not get in the way when installing storage shelves etc. on the lower surface of the storage cabinet, Can be installed easily.
[0007]
The detachable coupling portion, the coupling state between the interlocking connecting shaft and one link releasably unit can be configured to include a for fixing, Then to release the fixing by the fixing means, or by simply vice versa The interlocking connecting shaft can be attached and detached, and the attachment and detachment itself can be performed with a simple operation.
[0008]
In addition, the detachable coupling portion rotates in conjunction with one link and from the direction in which the coupling protrusion that protrudes from the opposite surface of the link and the engaging portion formed at the end of the interlocking connecting shaft are orthogonal to the axial direction. detachably fitted to the engagement groove formed in the coupling projection to engage in the rotational direction, constituted by releasably preventing a means of disengagement of the engaging portion is fitted into the locking groove May be. The coupling protrusion may be provided on a pivot pin that pivots and rotates in conjunction with the link, or may be provided by extending the base end portion of the link and bending it in a U shape on the opposite surface side of the link. . According to this detachable coupling portion, since the coupling protrusion protrudes from the opposing surface of the link, the engagement portion can be easily inserted and extracted, and the structure of the engagement portion is simplified.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0011]
In FIG. 1, 1 is a storage cabinet installed on the upper wall surface of a kitchen or the like, 2 is a state in which the storage cabinet 1 is housed (indicated by a one-dot chain line), and a state in which the storage cabinet 1 is pulled out to the lower front part (virtual line) It is the storage part mounted | worn so that raising / lowering is possible. The storage unit 2 is configured by, for example, a storage rack provided with both side plates, a plurality of nets, and a handle at the lower front end. Elevating support devices 3 having parallel links 4 are disposed on the inner surfaces of both sides of the storage cabinet 1, and the storage portion 2 is supported by these elevating support devices 3 so as to be movable up and down as described above. The storage unit 2 is located highest at the position where the parallel link 4 is upright as indicated by the solid line, but in order to store the storage unit 2 in a stable state, the storage unit 2 is further rearward by about 10 degrees. It is configured to be completely accommodated in the storage cabinet 1 in the state shown by the rotated one-dot chain line, and in this specification, this position is defined as the rising end of the storage unit 2 and the state indicated by the phantom line is the falling end. It prescribes.
[0012]
As shown in FIG. 2, the elevating support device 3 pivotally supports the base ends of the front link 5a and the rear link 5b constituting the parallel link 4 with a mounting housing 6, and the links 5a, The free end portion 5b is pivotally attached to a connecting plate 7 fixed to both side surfaces of the storage portion 2. The base ends of the front links 5a of the lifting support devices 3 and 3 are coupled to each other by an interlocking connecting shaft 8, and the parallel links 4 and 4 of the lifting support devices 3 and 3 are configured to rotate in synchronization with each other. Has been. Further, the rear link 5b is formed with an extension portion 9 further extending from the base end portion. A rear edge in the vicinity of the base end portion of the rear link 5 b is engaged with the outer surface of the mounting housing 6 at the rising end of the storage portion 2, and a rear edge of the extension portion 9 is formed at the lower end of the storage portion 2. A stopper 10 having a substantially triangular shape as a whole is fixed so as to be engaged, and the elevating end of the storage portion 2 is regulated by the stopper 10.
[0013]
A pivot shaft 11 that pivots on the rear link 5b and rotates in conjunction with the rear link 5b protrudes into the mounting housing 6 and is supported in the mounting housing 6 as shown in FIG. An interlocking rotating plate 12 is fixed to the shaft 11. A tension spring 15 is interposed between a spring hook 13 attached to one end 12 a of the interlocking rotating plate 12 and a spring hooking protrusion 14 provided at the upper front end of the mounting housing 6, and the other end 12 b of the interlocking rotating plate 12. A direct acting damper 18 is interposed between the support pin 16 provided on the support shaft 16 and the support pin 17 provided at the upper rear end of the mounting housing 6. A pivot pin 19 is fixed to the base end portion of the front link 5a, and the pivot pin 19 is rotatably supported by a bearing portion 20 provided in the mounting housing 6.
[0014]
As shown in FIGS. 4 and 5, the base portion of the front link 5 a and the interlocking connecting shaft 8 are detachably coupled by a detachable coupling portion 21. The detachable coupling portion 21 is provided with a coupling protrusion 22 projecting from the opposite surface of the link 5a on the pivot pin 19, and a locking groove 23 extending in the diameter direction and having one end opened to the outer periphery is formed in the coupling projection 22. Then, flat engaging portions 24 that can be fitted and engaged with the locking grooves 23 are provided at both ends of the interlocking connecting shaft 8, and the engaging portions 24 that are fitted and engaged with the locking grooves 23 with the fixing screws 25 are provided. It is configured to be fixed and to prevent the engagement portion 24 from being detached from the locking groove 23.
[0015]
Reference numeral 25 a denotes a through hole of the fixing screw 25 that penetrates from the outer periphery of the coupling protrusion 22 to the locking groove 23, and reference numeral 25 b denotes a screw hole into which the fixing screw 25 formed in the engaging portion 24 is screwed. Reference numeral 19a denotes a square shaft portion that fits into a square hole 5c formed in the base portion of the front link 5a. A coupling projection 22 is formed on the outer side of the square shaft portion 5a to prevent the front link 5a from being detached from the pivot pin 19. Yes. In FIG. 5, reference numeral 19 b denotes a snap ring that prevents the pivot pin 19 from coming off from the bearing portion 20.
[0016]
When the handle (not shown) at the lower end of the front end is pulled forward in order to pull out the storage part 2 from the storage cabinet 1 to the lower front part thereof, the parallel link 4 is directed forward. As the storage unit 2 rotates, the storage unit 2 starts to descend at an acceleration due to the rotation moment due to its own weight, but the reverse rotation moment by the interlocking rotation plate 12 and the tension spring 15 so as to cancel the rotation moment. Since the rotation speed is further suppressed by the direct acting damper 18, the storage portion 2 slowly descends to the lower end. When the lower end is reached, the side edge of the extension portion 9 of the link 5b collides with the stopper 10 to stop the rotation of the parallel link 4, and the storage portion 2 is stopped and supported at that position.
[0017]
When the storage unit 2 is lowered, the linear motion damper 18 that obtains a buffer action by the flow resistance of the orifice, the tension spring 15 and the interlocking rotary plate 12 connected to the pivot shaft 11 are used in combination. The tensile spring 15 can easily obtain a large spring load and can be easily combined with the interlocking rotating plate 12 so as to obtain stable operating characteristics even if the ambient temperature changes. A moment corresponding to a change in the rotational moment accompanying the downward movement can be easily obtained, and an optimum buffer characteristic can be realized.
[0018]
On the other hand, when the storage unit 2 is raised and stored in the storage cabinet 1, the rotational moment due to the load of the storage unit 2 is offset by the urging force of the tension spring 15, and the direct acting damper 18 is lifted by the one-way mechanism. Since there is almost no resistance at the time, it can be accommodated by raising it relatively lightly. Also at the rising end, the side edge of the link 5b collides with the stopper 10 and is similarly buffered and supported at that position.
[0019]
And according to this embodiment, since the base part of the front side link 5a and the interlocking connection axis | shaft 8 are couple | bonded so that attachment or detachment is possible, the both raising / lowering support apparatuses 3 and 3 were arrange | positioned in the storage cabinet 1. FIG. The interlocking connecting shaft 8 can be removed later if necessary, and the interlocking connecting shaft 8 can be easily attached even when another storage shelf or the like is installed on the lower surface of the storage cabinet 1.
[0020]
At that time, since the coupling protrusion 22 protrudes from the facing surface of the front link 5a, the engaging portions 24 at both ends of the interlocking connecting shaft 8 can be easily inserted and extracted.
[0021]
Further, when the interlocking connecting shaft 8 is removed, it is only necessary to remove the fixing screw 25 and extract the engaging portion 24 from the locking groove 23, so that the operation is very simple. After that, even when the front links 5a and 5a are interlocked and connected again by the interlocking connecting shaft 8, the engaging portion 24 is fitted into the locking groove 23 and fixed by the fixing screw 25. The interlocking connecting shaft 8 can be removed and attached with extremely good workability.
[0022]
The specific configuration of the detachable coupling portion 21 is not limited to the above illustrated example, and various configurations can be applied, and some examples will be described below with reference to FIGS.
[0023]
6 has substantially the same configuration as that of FIGS. 4 and 5, and FIG. 6A shows that the coupling protrusion 22 is not circular but rectangular, and both sides thereof are along both sides of the front link 5a. In FIG. 6B, as a means for preventing separation of the engaging portion 24 from the locking groove 23, a groove 26 is formed on the outer periphery of the circular coupling protrusion 22 to open the opening of the locking groove 23. The spring ring 27 is fitted so as to be closed.
[0024]
In the configuration shown in FIG. 7, the interlocking connecting shaft 8 is constituted by a groove-shaped member 28 having a U-shaped cross section, and the engaging portions 29 at both ends thereof are fitted and engaged with the rectangular coupling protrusion 22. The fixing screw 30 is used for fixing. In this case, it is not necessary to form the locking groove 23 in the coupling protrusion 22. Further, the entire length of the interlocking connecting shaft 8 may not be configured by the groove member 28 but only the engaging portion 24 may be configured by the groove member 28.
[0025]
8 and 9, the base portion of the front link 5 a is extended to be bent in a U shape on the opposite surface side of the front link 5 a to form a coupling protrusion 31, and the coupling protrusion 31 is locked. A groove 23 is formed, and a notch 32 for preventing the engaging portion 24 from being detached from the locking groove 23 by engaging the head 33a of the fixing screw 33 on one side of the coupling protrusion 31 is formed. is there.
[0026]
10 and 11, the base portion of the front link 5a is extended to be bent in a U-shape on the opposite surface side of the front link 5a to form a coupling protrusion 34, which is linked to the coupling protrusion 34. A locking hole 35 is formed in the shape of an elongated hole through which the engaging portion 24 of the shaft 8 can be inserted, and the engaging portion 24 engages in the rotating direction of the front side link 5a. The engagement portion 24 is inserted into the engagement hole 35 by screwing the engagement screw 24 between the engagement portion 24 and the engagement portion 24 is prevented from moving away from the engagement hole 35 by moving in the axial direction. is there. And in order to insert the engaging portions 24 at both ends of the interlocking connecting shaft 8 into the engaging holes 35 of the front links 5a, 5a facing each other of the lifting support devices 3, 3 on both sides, as shown in FIG. The engaging portion 24 on one end side of the interlocking connecting shaft 8 is deeply inserted into one locking hole 35 so that the engaging portion 24 on the other end side can be extracted from the other locking hole 35. In the illustrated example, the coupling protrusion 34 is formed by bending the front link 5a in a U shape. However, the coupling protrusion 34 may be provided on the pivot pin 19 as shown in FIGS.
[0027]
In the structure shown in FIG. 12, a shaft-like coupling protrusion 37 projects from the pivot pin 19 or the front link 5a so as to protrude from the opposing surface of the front link 5a. 8, fitting portions 38 formed at both end portions are fitted, and in a state where the fitting portions 38 are fitted to the shaft-like coupling protrusions 37, the coupling pins 39 are coupled releasably in the rotational direction and the axial direction. Is provided. Then, in order to fit the fitting portions 38 at both ends of the interlocking connecting shaft 8 to the shaft-like coupling protrusions 37 of the front links 5a, 5a facing each other of the lifting support devices 3, 3 on both sides, The coupling projection 37 is lengthened, and the fitting portion 38 on one end side of the interlocking connecting shaft 8 is deeply fitted to one long shaft-shaped coupling projection 37 to make the fitting portion 38 on the other end side of the other shaft shape. It is configured so that it can be extracted from the connecting protrusion 37. In the illustrated example, the shaft-shaped coupling protrusion 37 and the fitting portion 38 have circular cross-sections, but a rectangular cross-section can also be used. In this case, the coupling pin 39 is fitted with the shaft-shaped coupling protrusion 37. What is necessary is just to prevent the movement of the joint portion 38 in the axial direction.
[0028]
【The invention's effect】
According to the lifting storage device of the present invention, as is apparent from the above description, the bases of one link of both parallel links are interlocked so that the parallel links of the lifting support devices on both sides rotate synchronously. In addition to connecting with the shaft, and also provided with a detachable coupling portion that detachably couples the interlocking connecting shaft with the link in a state where both the lifting support devices are disposed in the storage cabinet, both the lifting support devices are disposed in the storage cabinet. The interlocking connecting shaft can be removed later, and even when installing a storage shelf etc. on the lower surface of the storage cabinet, the interlocking connecting shaft can be easily installed without obstructing, so according to the layout of each user's kitchen Thus, workability when installing various storage devices and storage shelves in an appropriate combination can be greatly improved.
[0029]
Further, the detachable coupling portion, the coupling state between the interlocking connecting shaft and one link releasably configured to include a means to fix, to release the fixing by the fixing means, or interlocked by simply vice versa The shaft can be attached and detached, and the attachment and detachment itself can be performed with a simple operation.
[0030]
Further, the detachable coupling portion rotates in conjunction with one of the links, and the coupling protrusion that protrudes from the opposing surface of the link and the engaging portion formed at the end of the interlocking connecting shaft from the direction perpendicular to the axial direction. a locking groove formed in the coupling projection to engage in the rotation direction and detachably fitted, configuring at means for releasably preventing disengagement of the engaging portion is fitted into the locking groove Since the coupling protrusion protrudes from the opposing surface of the link, the engaging portion can be easily inserted and removed, and the structure of the engaging portion can be simplified.
[0031]
In addition, the detachable coupling portion rotates in conjunction with one link and is inserted into the coupling protrusion protruding from the opposite surface of the link and the engaging portion formed at the end of the interlocking connecting shaft with respect to the rotation direction. And a means for preventing movement of the engaging portion inserted through the engaging hole in the axial direction, and at one end side of the interlocking connecting shaft. The engaging part on the other end side can be pulled out from the locking hole by inserting the engaging part deeply into the locking hole, or formed at the end of the interlocking connecting shaft so that it can be fitted into the coupling protrusion. With the fitting part and a means for releasably connecting them in the rotational direction with the fitting part fitted to the coupling protrusion, the fitting part on one end side of the interlocking connecting shaft is deeply connected to the coupling protrusion. Even if it is constituted so that the fitting part on the other end side can be extracted from the coupling protrusion by fitting, the coupling protrusion and the engaging part Structure of the fitting portion can be easily.
[Brief description of the drawings]
FIG. 1 shows an elevating storage apparatus according to an embodiment of the present invention, in which (a) is a side view and (b) is a front view in which a central portion is omitted.
2A and 2B show the storage unit lifting and lowering support device of the embodiment, wherein FIG. 2A is an enlarged cross-sectional view taken along the line AA of FIG. 1B, and FIG. 2B is a cross-sectional view taken along the line BB of FIG. is there.
FIG. 3 is an enlarged cross-sectional view taken along the line CC of FIG.
FIG. 4 is an exploded perspective view of a detachable coupling portion according to the embodiment.
FIG. 5 is a partial cross-sectional front view of the detachable coupling portion of the same embodiment.
6A and 6B show a modification of the attachment / detachment coupling portion of the embodiment, wherein FIG. 6A is a perspective view of a main part of the first modification, and FIG. 6B is a perspective view of a main part of the second modification. .
FIG. 7 is an exploded perspective view of a main part of a third modification of the detachable coupling portion of the embodiment.
FIG. 8 is an exploded perspective view of a fourth modification of the detachable coupling portion of the embodiment.
FIG. 9 is a partial cross-sectional front view of a fourth modification of the detachable coupling portion of the embodiment.
FIG. 10 is an exploded perspective view of a fifth modification of the detachable coupling portion according to the embodiment.
FIG. 11 is an explanatory diagram of a coupling process of a fifth modified example of the detachable coupling unit according to the embodiment;
FIG. 12 is an exploded perspective view of a sixth modification of the detachable coupling portion according to the embodiment.
FIG. 13 is a perspective view illustrating a configuration of a main part of a conventional lifting storage device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Storage cabinet 2 Storage part 3 Elevating support apparatus 4 Parallel link 5a Front side link 8 Interlocking connection shaft 21 Detachable joint part 22 Joint protrusion 23 Locking groove 24 Engagement part 25 Fixing screw 27 Spring ring 29 Engagement part 30 Fixing screw 31 Coupling Projection 32 Notch 33 Fixing screw 34 Coupling projection 35 Locking hole 36 Fixing screw 37 Shaft-like coupling projection 38 Fitting portion 39 Coupling pin

Claims (5)

In a lifting storage device in which a lifting support device having parallel links is arranged on both inner surfaces of the storage cabinet, and the storage unit is supported by the lifting support device so that it can be moved up and down in and out of the storage cabinet, the lifting support devices on both sides are parallel to each other. The bases of one link of both parallel links are connected by an interlocking connection shaft so that the links rotate synchronously, and the interlocking connection shaft is attached to and detached from the link in a state where both lifting support devices are arranged in the storage cabinet. An elevating storage device characterized in that a detachable coupling portion that can be coupled is provided , and the detachable coupling portion is configured to be detachable in a direction orthogonal to the axial direction of the interlocking connection shaft . Detachable coupling portion, elevating storage device according to claim 1, comprising the releasably means to secure the coupling state of the interlocking connecting shaft and one link. The detachable coupling part rotates in conjunction with one of the links, and the coupling projection that protrudes from the opposite surface of the link and the engaging part formed at the end of the interlocking coupling shaft can be detached from the direction perpendicular to the axial direction. characterized in that it consists of fitting the locking groove formed in the coupling projection to engage in the rotation direction by a releasably preventing a means of disengagement of the engaging portion is fitted into the locking groove in The elevating storage device according to claim 1 or 2. The detachable coupling portion rotates in the rotational direction by inserting a coupling projection that protrudes from the opposing surface of the link and an engagement portion formed at the end of the interlocking coupling shaft from the axial direction while rotating in conjunction with one link. and engaging holes formed in the coupling projection to engage against consists of a means for preventing movement of the axis direction of the engaging portion inserted through the locking hole, one end engaging the interlocking connecting shaft The elevating storage device according to claim 1, wherein the engaging portion on the other end side can be extracted from the locking hole by deeply inserting the joint portion into the locking hole. The detachable coupling part rotates in conjunction with one link and protrudes from the opposite surface of the link, and a fitting part formed at the end of the interlocking connecting shaft so that the coupling protrusion can be fitted from the axial direction. And a means for releasably coupling the coupling projection with the coupling projection and the other end by deeply fitting the coupling projection on one end side of the interlocking connecting shaft into the coupling projection. The elevating storage apparatus according to claim 1, wherein the side fitting portion can be extracted from the coupling protrusion.

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