JP2772221B2 - Lifting shelf - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting shelf in which a lifting shelf body housed in a storage recess can be pulled out.

[0002]

2. Description of the Related Art Conventionally, in an elevating shelf in which a lifting / lowering shelf body stored in a storage recess formed at a high place can be pulled out from the storage recess, the lifting / lowering shelf body is placed in a substantially horizontal state via a link mechanism. While pulling it forward and downward. In these devices, a spring member is generally attached to the link mechanism, and the lifting and lowering shelf body is moved in and out by the spring force of the spring member. Here, when the lifting shelf body is taken in and out, the spring member is in a stretched state when the lifting shelf body is pulled out from the storage recess, and is lightly assisted by the spring force of the spring member when the lifting shelf body is stored in the storage recess. The lifting shelf main body can be stored in the storage recess by operating force.

[0003]

However, in the above conventional example, in order to apply the spring force of the spring member as much as possible when storing the elevating shelf main body, the elevating shelf main body from the storage recess is required. It is necessary to deform the spring member so as to greatly compress or expand the spring member when pulling out. As a result, when pulling out the lifting shelf main body, a large force is required to pull out the lifting shelf body against the spring force. Therefore, considering the case of pulling out the lifting shelf main body, it is not possible to use a spring member with a strong spring force, and even if it has a spring member, it is necessary for the user to apply force when storing it, and it is easy to use. There was a problem of bad.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide an easy-to-use lifting shelf which can be pulled out with a light operating force when pulled out and can be stored with a light operating force when stored. What you want to do.

[0005]

According to the present invention, in order to achieve the above object, a link mechanism A is provided in a storage recess 1 so as to be able to move downward and forward while maintaining a substantially horizontal state.
The storage shelf main body 2 is stored and arranged via the storage shelf, and the storage shelf main body 2 is urged in the storage direction when the storage shelf main body 2 is pulled out.
The spring member 3 and the second spring member 4 are provided in the link mechanism A, and one end of the second spring member 4 is connected to the link mechanism A.
The other end of the second spring member 4 is arranged to be movable up and down, and the other end of the second spring member 4 is brought into contact with the other end of the second spring member 4 in a no-load state while the lifting shelf main body 2 is being pulled out. Is characterized in that it is arranged in the forward direction of the moving direction.

A mounting base 6 is attached to the inner surface of the side wall of the storage recess 1, and the other end of the second spring member 4 is slidably movable in a vertically continuous slit 7 provided in the mounting base 6. And a spring contact 5 may be formed at the upper end of the slit 7.

[0007]

Although the first spring member 3 and the second spring member 4 have two spring members, only the first spring member 3 is initially pulled out from the storage recess 1. The lifting and lowering shelf main body 2 is pulled out against the spring force of the first spring member 3, and when stored in the storage recess 1, the urging force of the two spring members of the first spring member 3 and the second spring member 4 is applied. The lifting shelf main body 2 can be stored in the storage recess 1 by a light operating force.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. The elevating shelf B in the present invention indicates, for example, storage furniture such as a clog box. As shown in FIGS. 1 to 3, the storage shelf main body 2 is pulled down to the upper front of the lower storage section C, and is like a shoe. It is possible to store or take out various articles.

The elevating shelf B is a storage shelf main body 2 which is arranged so as to be freely taken in and out of the storage recess 1, and a link mechanism A for moving the storage shelf main body 2 downward and forward while maintaining a substantially horizontal state. And constitute the subject. Here, a door that can be opened and closed may be attached to the front opening of the storage recess 1 as needed. The storage shelf body 2 is shown in FIG.
15 and a shelf board 30 shown in FIG. 15, and the shelf board 30 is attached to the holding frame 10 so as to be vertically adjacent to each other as shown in FIG. 7. .

As shown in FIGS. 4 and 5, the holding frame 10 includes a front frame 11 having a square shape, a rear frame 12 disposed behind the front frame 11, and a front frame 11 and a rear frame 12. A main body is constituted by a shelf support 13 provided between the front frame 11 and a reinforcing member 14 provided between upper portions of the front frame 11 and the rear frame 12. The front frame 11 is formed in a rectangular shape by a pair of vertical frames 15 and horizontal frames 16, and the holding frame 10 is moved in and out by a lower horizontal frame 16 provided between the lower portions of the opposed vertical frames 15. In this case, a grip 17 is formed for the user to hold by hand.

The rear frame 12 is formed of a linear material such as round steel, and is connected and fixed to the front frame 11 by a shelf support 13 formed by a vertical piece 18 and a horizontal piece 19 into an L-shaped cross section. I have. A connecting projection 20 projects upward from the horizontal piece 19 of the shelf support 13, and a shelf plate 30 disposed between the adjacent shelf supports 13 such that an end is placed on the horizontal piece 19.
Can be installed without using a fixing tool by inserting the connecting projection 20 into the locking hole 31 provided at the end.

The reinforcing member 14 is formed into an L-shaped cross section by a vertical piece 21 and a horizontal piece 22, and the horizontal piece 22 is connected and fixed to an upper horizontal frame 16 constituting the front frame 11, and the vertical piece 21 is formed. To front frame 1
It is connected and fixed to the upper part of one vertical frame 15 and connected and fixed to the upper part of the rear frame 12, and is bridged between the front frame 11 and the rear frame 12. A spacer 23 formed of a linear material is provided between adjacent reinforcing members 14. On the outer surface of the vertical piece 21 of the reinforcing member 14, the connecting shaft 24 on which the upper portions of the front support link 40 and the rear support link 60 constituting the link mechanism A are rotatably mounted. Are attached by welding and fixing as shown in FIG. The connecting shaft 24 is formed by projecting a shaft 26 from a base 25 welded and fixed to the outer surface of the vertical piece 21.
Is provided with a screw hole 27. Opposing reinforcing member 1
An opening 28 is provided between the openings 4 so that articles such as shoes can be taken in and out from the upper side of the holding frame 10 by using the opening 28, or tall objects such as boots and boots as shown in FIG. Can be stored.

The shelf plate 30 is formed of a thin plate having locking holes 31 at both ends as shown in FIG. 15, and is placed at the rear end as shown in FIGS. 16 and 17. A guard pipe 32 for preventing articles such as shoes from falling to the rear side is attached, and a non-slip 3 made of an elastic material such as rubber is provided at a front end.
3 can be attached. Further, as shown in FIG.
May be configured.

A mounting base 6 as shown in FIGS. 19 and 20 is mounted on the side wall of the storage recess 1.
A link mechanism A is mounted between the mounting base 6 and the holding frame 10. The mounting base 6 is configured by protruding mounting pieces 71 from both ends of the substrate 70, and by inserting a fixing tool into a side wall of the storage recess 1 through a through hole 72 provided in the mounting piece 71. It can be attached to the side wall of the storage recess 1. As the mounting base 6, there are a right mounting base 6a shown in FIG. 19 and a left mounting base 6b shown in FIG. 20, and a board 70 of each mounting base 6a, 6b is provided in FIG.
As shown in (1), support shafts 73 are attached at opposing positions. The support shaft 73 is formed by projecting a shaft 75 from a mounting base 74 welded and fixed to the substrate 70 as shown in FIG. A screw hole 76 is provided. A slit 7 continuous in the vertical direction is provided at the upper end of the left mounting base 6b.
The other end of a second spring member 4 described later is slidably attached to the slit 7. At the lower end of the slit 7, an insertion hole 7a for inserting and locking a slide member 131 as a connecting portion 130 attached to a connecting piece 4a at the other end of the second spring member 4 described later into the slit 7 is provided. ing. Also,
At the upper end of the slit 7, the second moving along the slit 7
A spring contact 5 is formed to stop the upward movement of the second spring member 4 when the other end of the spring member 4 contacts.

A stopper 8 as shown in FIGS. 27 and 28 is provided above the substrate 70 of each of the mounting bases 6a and 6b.
The stopper 80 restricts a rotation range of a rear support link 60 described later. This stopper 80 is a vertical piece 8
A cushion 8 formed of an elastic body such as rubber on a vertical piece 81 of a main body 83 formed substantially in an L-shape by a 1 and a horizontal piece 82.
4 is attached, and the horizontal piece 82 is attached to the substrate 70 by a fixing tool, so that each mounting base 6 is attached.
a, 6b. Reference numeral 85 denotes a connection hole for inserting the fixing tool.

The link mechanism A installed between the holding frame 10 and the mounting base 6 includes a front support link 40 shown in FIGS. 8 to 11, a rear support link 60 shown in FIGS. The main body is constituted by the first spring member 3 and the second spring member 4 for urging the support link 40 and the rear support link 60 with springs. The front support link 40 is configured by extending a horizontal frame 42 between lower portions of a pair of vertical frames 41, and a reinforcing member 1 forming the holding frame 10 is provided at an upper end of each vertical frame 41.
4 is provided with a connection hole 43 in which the lower connection shaft 24 provided on the vertical piece 21 is mounted.
A connection hole 44 is provided in which a lower support shaft 73 provided on the substrate 70 is mounted. A lever guide mounting plate 50 provided with an elongated mounting hole 51 is attached to the upper portion of one of the vertical frames 41, and the hole of the guide hole 53 is engaged with the mounting hole 51 in FIG. The lever guide 52 as shown in FIG. Here, the lever guides 52 are screwed into through holes 55 provided at the upper and lower ends of the lever guide mounting plate 50 from the through holes 54 provided at the upper and lower ends to be mutually connected and fixed. I have. A shaft mounting piece 45 projects from the lower end of the vertical frame 41 so as to be orthogonal to the horizontal frame 42, and a connecting shaft 46 projects from the shaft mounting piece 45 inward as shown in FIG. 10. One end of the first spring member 3 is mounted on the connection shaft 46.

The rear support link 60 is constructed by extending a horizontal frame 62 between the lower portions of a pair of vertical frames 61 having a length longer than the vertical frame 41 constituting the front support link 40.
1 has a connection hole 63 in which the upper connection shaft 24 provided on the vertical piece 21 of the reinforcing member 14 constituting the holding frame 10 is mounted. Is provided with a connection hole 64 into which the upper support shaft 73 provided on the shaft is mounted. Further, a shaft mounting piece 65 protrudes from a lower end portion of each vertical frame 61 so as to be orthogonal to the horizontal frame 62, and a connecting shaft 66 is protruded inward from the shaft mounting piece 65. One end of the second spring member 4 is axially mounted on the connection shaft 66. In addition, each vertical frame 61
A shaft mounting piece 67 protrudes from the upper end of the shaft mounting piece 65 in a direction opposite to the direction in which the shaft mounting piece 65 protrudes, and a connection shaft 68 protrudes inward from the shaft mounting piece 67,
The other end of the first spring member 3 is pivotally mounted on the connecting shaft 68.

As shown in FIG. 13, a stopper guide fitting 90 provided with an elongated guide hole 91 is attached to the upper part of one vertical frame 61. An insertion hole 92 is provided at an end of the guide hole 91 located at the upper end of the stopper guide fitting 90, and a guide hole 91 is provided at an end of the guide hole 91 located at the lower end of the stopper guide fitting 90. A lock hole 93 is formed in a direction substantially orthogonal to the direction.

The front support link 40 and the rear support link 60 are arranged in parallel so as to face each other in front and rear as shown in FIGS. 25 and 26. A stopper fitting 100 and a stopper release lever 110 are connected to 60. As shown in FIG. 23, the stopper metal member 100 is formed by a band plate material 101, a connecting shaft 102 is protruded toward one side at one end, and a through hole 103 into which a screw member is inserted is provided at the other end. Is provided. An engagement recess 1 is provided at one end where the connection shaft 102 is protruded so as to be adjacent to the connection shaft 102.
An engagement recess 104 is formed so as to partially cut out an upper edge of one end side.

As shown in FIG. 24, the stopper release lever 110 is formed by a strip-shaped strip 111, and has an operation knob 12 as shown in FIG.
0 is attached. The operation knob 120 has a groove 121 formed on one side thereof so that the fitting groove 121 is engaged with one end of the band plate member 111, and the screw hole 1 is formed through a through hole 114 provided in the band plate member 111.
It is configured to be attached by driving a screw 123 into the inside 22. A locking projection 113 is provided on the other end of the strip 111 to project laterally, and a through hole 112 is provided at the other end of the strip 111 so as to be adjacent to the locking projection 113.

As shown in FIG. 25, the stopper 100 has a connecting shaft 102 at one end slidably engaged with a guide hole 91 of a stopper guide 90 provided on the rear support link 60, and a screw at the other end. By being connected and fixed to the upper part of the right mounting base 6a by the tool 94, the right mounting base 6a and the rear support link 60 are bridged. Here, the connecting shaft 10 at one end of the band plate material 101 is used.
2 is inserted into the guide hole 91 through an insertion hole 92 provided at an end of the guide hole 91, and the other end of the strip 101 is a screw 94 inserted into the through hole 103.
Is rotatably connected to and fixed to the right mounting base 6a by driving it into the upper portion of the substrate 70 of the right mounting base 6a.

The stopper release lever 110 has one end to which the operation knob 120 is attached is inserted into a guide hole 53 of a lever guide 52 provided on the front support link 40, and a screw inserted through a through hole 112 provided at the other end. The tool 56 is rotatably connected to the stopper 100 by driving the tool 56 into the back surface of the connecting shaft 102 of the stopper 100.

A first spring member 3 formed by a gas spring is provided with a connecting piece 3a provided at one end by a front support link 4
0 is rotatably mounted on a connecting shaft 46 provided on a shaft mounting piece 45 at the lower end of a connecting piece 3b provided on the other end.
And a lower end of the vertical frame 41 of the front support link 40, which is rotatably mounted on a connection shaft 68 provided on a shaft mounting piece 67 at the upper end of the rear support link 60, and is disposed so as to face front and rear. The rear support link 60 is mounted between the upper end of the vertical frame 61 and the rear support link 60. Here, the first spring member 3 is in an extended state when the front support link 40 and the rear support link 60 are in the upright state, and is in a state in which the front support link 40 and the rear support link 60 have fallen. The front support link 40 is arranged between the lower end of the vertical frame 41 of the front support link 40 and the upper end of the vertical frame 61 of the rear support link 60 so as to be compressed in the event of compression.

A second spring member 4 formed by a gas spring is provided with a connecting piece 4a provided at one end by a rear support link 6
0 is rotatably mounted on a connecting shaft 66 provided on a shaft mounting piece 65 at a lower end of the connecting portion 13 and a connecting portion 13 provided on the other end.
0 is slidably mounted on a slit 7 provided on the left mounting base 6b. The connecting portion 130 is constituted by a slide member 131 which can be slid along the slit 7 in a state where the connection member 130 is prevented from coming off by the slit 7.
Is connected and fixed to a connecting piece 4b at the other end of the spring member 4. Here, the second spring member 4 is in an extended state when the front support link 40 and the rear support link 60 are in the upright state, and is in a state in which the front support link 40 and the rear support link 60 are in a collapsed state. The slide member 131 slidably inserted into the slit 7 and slidably engaged therewith has the front support link 40 and the rear support link 60 in an upright state. In this case, the front support link 40 and the rear support link 60 are located below the slit 7, and when the front support link 40 and the rear support link 60 are slightly tilted, they are located in the middle of the slit 7.
The slit 7 is arranged so as to abut against the spring contact 5 at the upper end edge of the slit 7 in a state of falling down to 5 ° or less. That is, the front support link 40 and the rear support link 60 as the link mechanism A
The second spring member 4 is moved upward in the initial stage when it starts to fall, but the other end slides along the slit 7 so that the second spring member 4 is not compressed. 40 and rear support link 60 are approximately 45 °
The second spring member 4 starts to be compressed after the other end of the second spring member 4 abuts against the spring contact 5 to the following state.

When the gripper 17 at the lower part of the front frame 11 constituting the holding frame 10 is pulled out from the storage state shown in FIG. 1 by hand, the storage shelf main body 2 is shown in FIGS. As shown in FIG. 3, the link mechanism A is moved downward and forward while maintaining a substantially horizontal state.
In this state, articles such as shoes are placed on the shelf board 30 of the storage shelf main body 2 in the state shown in FIG. Subsequently, in order to store the pulled-out storage shelf body 2 in the storage recess 1, the stopper release lever 110 is operated to release the lock, and then the holding portion 17 is manually held and the storage shelf body 2 is lifted upward. Then, the storage shelf main body 2 can be stored in the storage recess 1 with a light force.

When the user holds the holding portion 17 by hand and pulls out the storage shelf main body 2 from the storage recess 1, the link mechanism A
The storage shelf main body 2 is moved downward and forward while maintaining a substantially horizontal state, and the front support link 40 and the rear support link 60 constituting the link mechanism A are the first
Of the spring member 3 against the spring force. here,
The second spring member 4 is also moved in the compression direction with the forward inclination of the rear support link 60, but the other end of the second spring member 4 extends along the slit 7 provided in the mounting base 6. Since the storage shelf body 2 is movable, the spring force of the second spring member 4 does not act on the front support link 40 and the rear support link 60 in the initial stage of pulling out the storage shelf body 2, and the storage shelf body 2 is initially pulled out. , The holding frame 10 is pulled out against the spring force of only the first spring member 3. The other end of the second spring member 4 hits the spring contact 5 at the upper end of the slit 7 before the storage shelf main body 2 is completely pulled out in a state where most of the slit is pulled out, so that the spring force of the second spring member 4 is reduced. It acts on the link mechanism A, but before the drawer is completed, the second spring member 4 is compressed by the inertia force that moves the storage shelf main body 2, so that a large pull-out force is not required. The second spring member 4 is compressed. When the storage shelf main body 2 is completely pulled out and the second spring member 4 is compressed, the connecting shaft 102 of the stopper fitting 100 that has moved along the guide hole 91 of the stopper guide fitting 90 of the rear support link 60 has the guide hole. At the same time, the locking projection 113 of the stopper release lever 110 engages with the engaging recess 104 of the stopper fitting 100, and thereby the link mechanism A When the storage shelf body 2 is pulled out with the spring force of the first spring member 3 and the second spring member 4 still acting on the link mechanism A when the drawer is completed, the locked state is automatically set. It is fixed as it is. Here, since the central portion of the stopper release lever 110 is inserted and locked in the guide hole 53 of the lever guide 52 provided on the front support link 40, the tip portion provided with the operation knob 120 moves downward. There is no such thing. Further, since the vertical frames 41 and 61 constituting the front support link 40 and the rear support link 60 are connected to each other by the horizontal frames 42 and 62, the strength can be increased and the front support link 40 can be increased. Also, it is possible to prevent the rear support link 60 from being distorted, and to provide a stopper fitting 100 and a stopper release lever 11 for locking and unlocking.
Reference numeral 0 indicates that the lock and the release of the lock can be reliably performed without deforming the link mechanism A even if the link mechanism A is attached to only one side.

Next, when the storage shelf main body 2 is to be stored in the storage recess 1, the operation knob 120 of the stopper release lever 110 is pulled downward to be engaged with the engagement recess 104 of the stopper fitting 100. Stopper release lever 11
The locking hole 113 of the stopper hole 90 of the stopper guide fitting 90 is removed by removing the locking protrusion 113
The connecting shaft 102 of the stopper fitting 100 engaged with the lock member 3 is disengaged from the lock hole 93, and the link mechanism A is caused by the spring force of the compressed first spring member 3 and the second spring member 4 to expand. It is urged to move in the direction in which it is raised,
The storage shelf body 2 is stored in the recess 1 with a light operating force by the spring force.
That can be stored within. That is, when the storage shelf body 2 is stored in the storage recess 1 by the two spring forces of the first spring member 3 and the second spring member 4.
It can be stored inside.

In the elevating shelf B, when the storage shelf main body 2 is pulled out of the storage recess 1, the storage shelf main body 2 is pulled out against the spring force of only the first spring member 3 in the initial stage. Only, and the storage shelf body 2 is
When the storage shelf main body 2 is stored in the storage recess 1, the two spring forces of the first spring member 3 and the second spring member 4 act on the link mechanism A. Even though it has two spring members, the storage shelf main body 2 can be pulled out with a light force in the initial stage of pulling out,
At the time of storage, the storage shelf main body 2 can be stored with a light force using the spring force of the two spring members.

In the above-described embodiment, a description has been given of a two-stage specification in which the shelf plates 30 provided on the holding frame 10 are provided in two upper and lower stages. However, the present invention is not limited to this. The holding frame 10, the front support link 40, the rear support link 60, and the mounting base 6 used in the case of the three-stage specification are shown in FIGS. 31 to 35, respectively. . In the above-described embodiment, the front support link 40 and the rear support link 6
Although the pair of vertical frames 41 and 61 constituting 0 are shown such that their lower parts are connected to each other by horizontal frames 42 and 62, each vertical frame is not provided as shown in FIG. 4
The lower portions of the members 1 and 61 may be connected and fixed to the mounting base 6. Further, in the above-described embodiment, the case where the elevating rack B is like a clog box for storing articles such as shoes is shown. However, the present invention is not limited to this, and the articles are tableware. May be used as a cupboard for storing books or as a bookshelf for storing books.

[0030]

As described above, according to the present invention, the storage shelf body is stored and arranged via the link mechanism in the storage recess so as to be able to move downward and forward while maintaining a substantially horizontal state. A first spring member and a second spring member for urging the storage shelf body in the storage direction when the drawer is moved are provided on the link mechanism, and the other end of the second spring member having one end connected to the link mechanism is moved up and down. The other end of the second spring member is abutted in the no-load state in the middle of pulling out the elevating shelf main body, and the spring contact is arranged at the end of the other end of the second spring member in the moving direction. Therefore, although it has two spring members, a first spring member and a second spring member, it rises and lowers against the spring force of only the first spring member at the initial stage of pulling out from the storage recess. The shelf itself is pulled out. 2 of the spring member and the second spring member
The lifting and lowering shelf body can be stored in the storage recess with a light operating force by the urging force of the two spring members.It can be pulled out with a light operating force when pulled out and can be stored with a light operating force when stored. It is possible to provide an easy-to-use lifting shelf.

[Brief description of the drawings]

FIG. 1 is a sectional view of a housed state showing one embodiment of the present invention.

FIG. 2 is a cross-sectional view of the same in the middle of drawing.

FIG. 3 is a cross-sectional view of the same drawing out state.

4A and 4B show a holding frame, wherein FIG. 4A is a front view,
(B) is a plan view, and (c) is a side view.

FIG. 5 is an exploded perspective view of the holding frame.

FIG. 6 is an enlarged cross-sectional view of a part A in FIG.

FIG. 7 is a perspective view of the lifting shelf main body as viewed from behind.

8 (a) is a front view, FIG. 8 (b) is a plan view, FIG. 8 (c) is a right side view, and FIG. 8 (d) is a left side view.

FIG. 9 is an enlarged front view showing an attached state of a lever guide attachment plate.

10 is an enlarged front view of a state in which the left and right parts of FIG.

FIG. 11 is a perspective view of a front support link.

12 (a) is a front view, FIG. 12 (b) is a plan view, FIG. 12 (c) is a right side view, and FIG. 12 (d) is a left side view.

FIG. 13 is an enlarged front view showing an attached state of a stopper guide fitting.

FIG. 14 is a perspective view of a rear support link.

FIG. 15 shows a shelf board, (a) is a front view,
(B) is a front view, (c) is a side view.

FIG. 16 is an exploded perspective view showing a mounting position of a guard pipe and a non-slip on a shelf board.

FIG. 17 is a partially broken side view showing a state where a guard pipe and a non-slip are attached.

FIG. 18 is an exploded perspective view showing another embodiment of the non-slip.

FIG. 19 shows a right mounting base, and (a)
Is a front view, and (b) is a plan view.

FIG. 20 shows the left mounting base, and (a)
Is a front view, and (b) is a plan view.

FIG. 21 is a perspective view of a right mounting base and a left mounting base.

FIG. 22 shows an attached state of the support shaft, and is an enlarged sectional view of a portion C in FIG. 20 (b).

FIGS. 23A and 23B show a stopper fitting, wherein FIG. 23A is a front view and FIG. 23B is a side view.

FIG. 24 shows a stopper release lever,
(A) is a front view, (b) is a partial plan view.

FIG. 25 is an exploded perspective view showing a connected state of a stopper fitting and a stopper release lever.

FIG. 26 is an exploded perspective view in which a link mechanism is partially omitted.

27 (a) is a front view, FIG. 27 (b) is a plan view, and FIG. 27 (c) is a side view.

FIG. 28 is an exploded perspective view of a stopper.

29 (a) is a front view, FIG. 29 (b) is a side view, and FIG. 29 (c) is a perspective view.

30 (a) is a front view, FIG. 30 (b) is a plan sectional view, and FIG. 30 (c) is a perspective view.

FIGS. 31A and 31B show a holding frame for three steps, where FIG. 31A is a front view, FIG. 31B is a plan view, and FIG. 31C is a side view.

FIG. 32 shows a front support link for three steps;
(A) is a front view, (b) is a plan view, (c) is a right side view,
(D) is a left side view.

FIG. 33 shows a rear support link for three steps;
(A) is a front view, (b) is a plan view, (c) is a right side view,
(D) is a left side view.

FIG. 34 is a front view showing a right mounting base for three steps.

FIG. 35 is a front view showing a left mounting base for three steps.

FIG. 36 is an exploded perspective view partially showing a link mechanism according to another embodiment of the present invention;

[Explanation of symbols]

 A Link mechanism 1 Storage recess 2 Storage shelf body 3 First spring member 4 Second spring member 5 Per spring 6 Mounting base 7 Slit

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Seizaburo Yasuda 1-12-23 Shimanouchi, Chuo-ku, Osaka-shi Futaba Industrial Co., Ltd. (56) References JP-A-62-139604 (JP, A) (58) ) Surveyed field (Int. Cl. ⁶ , DB name) A47B 51/00 501

Claims (2)

(57) [Claims] 1. A storage shelf main body is stored and arranged via a link mechanism in a storage recess so as to be able to move downward and forward while maintaining a substantially horizontal state, and the storage shelf main body is moved when the storage shelf main body is pulled out. A first spring member and a second spring member for urging in the retracting direction are provided on the link mechanism, and the other end of the second spring member having one end connected to the link mechanism is vertically movably disposed; A lifting shelf, wherein a spring contact with which the other end of the second spring member is brought into contact with the second spring member in a no-load state in the middle of pulling out is arranged in the movement direction of the other end of the second spring member. 2. A mounting base is attached to the inner surface of the side wall of the storage recess, and the other end of the second spring member is slidably mounted on a vertically continuous slit provided on the mounting base. The lifting shelf according to claim 1, wherein a spring contact is formed at an upper end.