JP2005087360A - Ascending and descending shelf - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ascending and descending shelf having an article placement member which can be pulled out to a lower part at the front, allowing a stored article to be easily taken out and effectively utilizing a space on the front side without greatly projecting the pulled-out member to the front. <P>SOLUTION: This ascending and descending shelf is provided with: a fixed case body 1; a movable frame 3 attached to the fixed case body 1 so as to be swung and pulled out to the front through a parallel linking mechanism 2; and an article mounting member 5 attached to the movable frame 3 so as to be freely pulled out and housed in front and back horizontal directions H. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a lifting shelf.

  Conventionally known elevating shelves arranged on the upper part of the wall surface or the ceiling surface include a housing fixed to the wall surface, a placing member for placing and storing articles, a housing and a placing member. There is one with a parallel four-bar link mechanism to be connected, and the mounting member is switched from the rear upper storage state to the front lower pulling state with respect to the housing by the swinging operation of the link mechanism. (For example, refer to Patent Document 1).

However, this conventional lifting shelf has a problem that it is difficult to apply particularly to a case having a large (deep) depth dimension. That is, if the casing side fulcrum part of the link mechanism is provided in the inner part of the casing, it is necessary to lengthen the link arm in order to pull out the mounting member completely from the casing. However, it cannot be adopted if the height of the casing is small.
In addition, if the housing side fulcrum portion of the link mechanism is provided at the front portion of the housing, the above problem is solved, but the placed mounting member is projected far away from the housing, so the mounting member is A large space for drawing out was required in front of the housing. And the useless space has arisen between the housing | casing and the mounting member.
JP 2001-327337 A

  The problem to be solved is that in a shelf (housing) having a large depth dimension, it has been difficult to obtain a structure in which a member on which an article fully utilizing the dimension is placed is pulled out by swinging. Moreover, the mounting member pulled out to the front is greatly extended toward the front, and a wide space is required.

The present invention is a fixed housing, a movable frame attached to the fixed housing so as to be swingable and pullable forward through a parallel link mechanism, and attached to the movable frame so as to be retractable in the front-rear and horizontal directions. An article placement member.
In addition, a regulating member is provided in a part of the parallel link mechanism, and when the article placement member is stored in the rear, the regulation member interferes with a part of the article placement member and swings forward by the parallel link mechanism. This prevents the swinging of the movable frame forward.
Further, a first guide member is provided in a part of the parallel link mechanism, and as the article placement member swings and pulls forward, the horizontal position of the article placement member with respect to the movable frame is moved backward. The article placing member is provided with a first guided recessed portion that engages while sliding with the first guide member so as to be forcibly moved.

Further, a second guide member is provided in a part of the parallel link mechanism, and when the movable frame is swinging forward, the article placement member is moved horizontally back and forth by engaging with the second guide member. A second guided recessed portion to be blocked is provided on the article placing member.
Further, the restriction member and the first guide member are shared by the same member. Alternatively, the restriction member, the first guide member, and the second guide member are shared by the same member, and the first guided recess and the second guided recess are shared by the same member.

Even if the lifting shelf of the present invention is a casing (shelf) having a large depth dimension, the article placement member can be pulled out to a position below the casing. In other words, the article placement member having a size that fully utilizes the depth of the housing can be easily switched from the rear upper storage state to the front lower pulling state by the swinging operation and the horizontal pulling (storage) operation. Can be used.
Further, the article placement member pulled out to the front lower side does not protrude greatly forward from the casing, and the article placement member can be positioned at a position closest to the front lower side of the casing.

FIG. 1 is a front view showing an embodiment of the lifting shelf of the present invention, and FIGS. 2, 3 and 4 are sectional side views of the lifting shelf.
The lifting shelf is fixed to the wall surface B (or standing from the floor surface), for example, and is fixed to the wall surface B, and the fixed housing 1 is swung forward via the parallel link mechanism 2. It is an elevating shelf comprising a movable frame 3 attached so as to be movable and drawable, and an article placement member 5 attached to the movable frame 3 so as to be able to be drawn and stored in the front-rear horizontal direction H.
Note that the illustrated lifting shelf is described as a lifting shelf. In addition, an opening / closing door may be provided on the front side (opening side) of the fixed housing 1, but the door is omitted in the figure.

The lifting shelf includes a rear storage state (FIG. 2) in which the article placement member 5 on which the article is placed is housed in the fixed housing 1, and the article placement member 5 in front of the fixed housing 1. It is possible to switch between the front and lower drawer state (FIG. 4), which is in the drawer state at the nearest position, and switching between the rear storage state of the article placement member 5 and the front and lower drawer state, This is performed via a front horizontal pulling state (FIG. 3) in which the article placement member 5 is pulled out from the fixed housing 1 in the horizontal direction.
That is, the article placement member 5 is once pulled out to the front in the horizontal direction from the rear storage state, and then swings to a pull-out state in front and lower. On the other hand, from the pulled-down state at the front and lower side, it once enters the horizontal-drawing state at the front and then enters the rear storage state.

The fixed housing 1 is a frame body whose front surface is open. One end portion of the parallel link mechanism 2 is attached to the inner lower portion of the fixed housing 1 via the attachment member 4, and the other end portion of the parallel link mechanism 2 is attached to the upper portion of the movable frame 3. ing.
As shown in FIG. 1, the attachment members 4 are respectively disposed on the left and right sides of the fixed housing 1, and the parallel link mechanism 2 is attached to each of the attachment members 4. As shown in FIG. 2, the attachment member 4 is provided at a substantially intermediate position in the front-rear direction (depth direction) of the fixed housing 1 in a side view.

  The parallel link mechanism 2 includes a first link arm 10 and a second link arm 11 between the mounting member 4 and the movable frame 3, and one end of the first link arm 10 is connected to the mounting member 4 and the first horizontal arm. The other end is pivotally mounted about the movable frame 3 and the second horizontal axis 7 so as to be swingable about the axis 6. One end of the second link arm 11 is pivotally mounted around the mounting member 4 and the third horizontal axis 8, and the other end is swingable around the movable frame 3 and the fourth horizontal axis 9. It is pivotally attached to. The movable frame 3 can swing around the attachment member 4 side.

  The pair of left and right parallel link mechanisms 2 and 2 are coupled to each other by a link connecting member which is a horizontal member, and these parallel link mechanisms 2 and 2 can always operate integrally (in synchronization). . The connecting member connects the left and right first link arms 10 and 10, and may be used as the same member as the regulating member A described later.

The movable frame 3 includes a pair of left and right vertical movable plates 12 and 12, and an upper rear portion of the vertical movable plate 12 is an attachment portion with the parallel link mechanism 2. The vertical movable plate 12 has an upper guide member 13 and a lower guide member 14 in the horizontal direction.
On the other hand, the article placement member 5 (storage rack) has an upper placement member 15 and a lower placement member 16, and the upper placement member 15 and the lower placement member 16 are inclined in the vertical direction on the left and right sides, respectively. They are connected by a connecting member 17.

The upper placement member 15 of the article placement member 5 is slidable in the front-rear horizontal direction by the upper guide member 13 of the movable frame 3, and the lower placement member 16 is slid in the front-rear horizontal direction by the lower guide member 14. It can be moved. Since the upper and lower mounting members 15 and 16 are connected by the connecting member 17, they always move horizontally (synchronized operation).
The left and right connecting members 17, 17 protrude further downward from the lower mounting member 16, and are connected by a horizontal bar member at the lower end thereof, and the bar member serves as an operation handle 18. Thereby, the article placement member 5 can move in the horizontal direction (front-rear) with respect to the movable frame 3.

In addition, the lifting shelf is provided with a regulating member A in a part of the parallel link mechanism 2, and the regulating member A is a part of the article placing member 5 when the article placing member 5 is in the rear storage state (FIG. 2). It is configured to interfere and prevent forward swinging by the parallel link mechanism 2 and restrict swinging of the movable frame 3 toward the front.
More specifically, the restricting member A is a protruding member or a bar member that is provided on the first link arm 10 and contacts the lower surface of the upper placing member 15 of the article placing member 5. In the embodiment shown in FIGS. 1 and 2, the regulating member A and the link connecting member are the same and are used together, and the regulating member A comes into contact with the entire bottom surface of the upper mounting member 15.

That is, FIG. 5 shows the regulating member A and the lower surface of the upper mounting member 15. The parallel link mechanism is pulled through the movable frame 3 by pulling it forward from the rear storage state with the operation handle 18 of the article mounting member 5. When trying to swing 2, the lower surface of the upper mounting member 15 comes into contact with the restricting member A, and the parallel link mechanism 2 cannot swing downward.
Accordingly, when the operation handle 18 is pulled forward, the article placement member 5 is always pulled out in the horizontal direction with respect to the movable frame 3 along the upper and lower guide members 1314, and the state shown in FIGS. Become. Further, the article placement member 5 is in the rear housing state in the fixed housing 1, and the upper placement member 15 of the article placement member 5 is placed on the restriction member A. The rear storage state can be maintained.

Then, as shown in FIG. 3, when the article placement member 5 is in the front horizontal drawing state, the contact portion (the lower face of the upper placement member 15) of the article placement member 5 becomes a front position away from the regulation member A. The parallel link mechanism 2 is in a state that can swing downward and forward.
When the article placing member 5 is pulled out in the front horizontal direction, as shown in FIG. 6, the regulating member A is provided at a position behind the article placing member 5 and horizontally away from the lower surface of the upper placing member 15. A state in which the article placement member 5 is pulled out horizontally to a predetermined position with respect to the movable frame 3 in contact with the vertical stopper surface 20 (the rear wall portion 19 of the first guided recessed portion C ′ described later). It becomes.
In the rear storage state (FIG. 2) or the front horizontal pull-out state (FIG. 3), the second horizontal axis 7 and the horizontal axis of the restricting member A are arranged on the same vertical line in a side view.

Further, the lifting shelf of the present invention is provided with a first guide member A ′ in a part of the parallel link mechanism 2, and is movable as the article placement member 5 is swung out by the parallel link mechanism 2. The first guided recessed portion C ′ that engages while sliding with the first guide member A ′ is provided on the article placement member 5 so as to forcibly move the front and rear horizontal positions of the article placement member 5 with respect to the frame 3. It is provided in the rear part.
More specifically, the first guide member A ′ is a projecting member or a rod member provided on the first link arm 10, and in the embodiment of FIGS. 3 and 4, the first guide member A ′ The restriction member A (link connecting member) is the same and serves as both.

  Further, as shown in FIGS. 2, 3, and 4, the first guided recess C ′ is formed so as to continue from the lower surface of the upper mounting member 15, and has a concave shape above the lower surface. It is a ditch | groove part comprised so that it might become. That is, the first guided recess C ′ is formed by bending a flat plate into an inverted U-shaped cross section, and is attached to a rear portion of the upper mounting member 15.

  Accordingly, as the article placement member 5 is swung by the parallel link mechanism 2 via the movable frame 3, the first guided recessed portion C ′ moves downward (in the direction of arrow L in FIGS. 6 and 7). Thus, the first guide member A ′ slides in the first guided recessed portion C ′ along the rear wall portion 19 of the recessed portion C ′, and the first guide member A ′ moves to the rear wall portion. 19 is pushed, and thereby the article placement member 5 is automatically slid in the horizontal direction with respect to the movable frame 3.

  Therefore, as shown in FIG. 4, the article placement member 5 draws a swing locus of the same shape (same radius) as the swing locus of the tip of the parallel link mechanism 2 at the position indicated by the two-dot chain line. However, with this configuration, it reaches a position that is returned to the fixed housing 1 side from the virtual arrival position indicated by the solid line. That is, it can be said that the article placement member 5 automatically moves backward in the horizontal direction while swinging downward toward the front.

  As described above, the article placement member 5 reaches the position closer to the fixed housing 1 by the front-rear direction dimension W than the virtual arrival position. That is, although the attachment member 4 to which the base end portion of the parallel link mechanism 2 is attached is disposed in front of the innermost part of the fixed housing 1 (at an intermediate position in the depth direction), the fixed housing The article placement member 5 can be disposed at a position closest to the front lower side of 1.

Further, in the lifting shelf of the present invention, the second guide member A ″ is provided in a part of the parallel link mechanism 2, and the movable frame 3 is engaged with the second guide member A ″ when the movable frame 3 is swinging forward (FIG. 4). In combination, a second guided recessed portion C ″ that prevents the article placement member 5 from moving back and forth horizontally is provided at a rear portion of the article placement member 5.
More specifically, the second guide member A ″ is a protruding member or a rod member provided on the first link arm 10. In the embodiment of FIG. 4, the second guide member A ″ and the first guide are described above. The member A ′ (the restricting member A or the link connecting member) is the same and serves as both. Further, the first guided recessed portion C ′ and the second guided recessed portion C ″ are shared by the same member.

  In other words, in the state of FIG. 4, as shown in the cross-sectional view of the main part of FIG. 8, the second guide member A ″ is positioned at the back portion 21 that is the upper portion of the second guided recessed portion C ″. The front portion and the rear portion of A ″ are in contact with each other while being sandwiched between the rear front wall portion 22 and the rear rear wall portion 23 of the concave portion C ″, and the concave portion C ″ is in contact with the second guide member A ″. Can't move back and forth. That is, the article placement member 5 cannot move in the front-rear direction with respect to the movable frame 3.

  Further, the upper wall portion 24 at the back of the concave portion C ″ is in contact with the upper portion of the second guide member A ″ so that the concave portion C ″ cannot move further downward. Cannot be swung further downward by the parallel link mechanism 2 via the movable frame 3, and the article placement member 5 is held at a predetermined position (predetermined height) that is in a pulled-out state toward the front.

  Further, although not shown in the drawings, the lifting shelf of the present invention is a spring that applies an elastic force in the opposite direction around the swing center according to the downward swing angle around the swing center of the parallel link mechanism 2. It has a member. That is, the spring member is connected to the first link arm 10 or the second link arm 11 of the parallel link mechanism 2 (via an intermediate member), and when swinging and pulling down the article placement member 5 toward the front and lower, When the spring member is twisted and its elastic force (restoring force) prevents the article placement member 5 from dropping rapidly, and when returning the article placement member 5 rearward and upward, a twisted spring is used. The elastic force in the direction in which the member is restored acts, and acts as an auxiliary force to pull up the article placing member 5 that is heavier on the article.

The spring member may be, for example, a leaf spring disposed on the first horizontal axis 6 or the third horizontal axis 8 or an axis parallel to them in the mounting member 4, A spiral spring or the like having either one as an axis may be used.
Further, as shown in FIGS. 1 to 4, the parallel link mechanism 2 is provided with damper means 25 for preventing the article placing member 5 from swinging and suddenly descending.

  In the above description, the elevating shelf includes all (functions) of the regulating member A, the first guide member A ′, and the second guide member A ″. However, the elevating shelf includes only one of them. It is good also as an elevator shelf provided with any two.

As described above, according to the present invention, the fixed casing 1, the movable frame 3 attached to the fixed casing 1 through the parallel link mechanism 2 so as to be swingable and pullable forward, and the movable frame 3 Since the article placement member 5 is mounted in the horizontal direction H so as to be pulled out and retractable, the article placement member 5 can be pulled out toward the front in the horizontal direction and can be swung downward. Even if it is the deep fixed housing | casing 1, it can be set as the raising / lowering shelf which can pull out the article mounting member 5 to the near lower side from the fixed housing 1. FIG.
That is, the article placing member 5 having a size (depth) that sufficiently utilizes the depth of the fixed housing 1 can be easily and rearwardly accommodated by the swinging operation and the horizontal pulling (housing) operation. It can be used by switching the lower drawer state.

Further, when the regulating member A is provided in a part of the parallel link mechanism 2 and the article placement member 5 is stored in the rear, the regulation member A interferes with a part of the article placement member 5, and the parallel link mechanism 2 swings forward. Since the movement is prevented and the swing-out of the movable frame 3 toward the front is restricted, the swing operation cannot be performed unless the article placement member 5 is once pulled out in the horizontal direction. .
That is, the drawing operation is smooth without any erroneous operation.

Further, the first guide member A ′ is provided in a part of the parallel link mechanism 2, and the horizontal position of the article placement member 5 with respect to the movable frame 3 is changed as the article placement member 5 swings and pulls forward. Since the article placement member 5 is provided with the first guided recess C ′ that slides and engages with the first guide member A ′ so as to be forcibly moved rearward, the article placement member that is drawn downward toward the front is provided. 5 does not project greatly from the fixed housing 1 to the front, does not create a useless space between the fixed housing 1 and the article placement member 5, and places an article on a position immediately below the fixed housing 1. The mounting member 5 can be positioned.
Therefore, even if other shelves, walls, and the like are close to the lift shelf, the pulled-out article placement member 5 does not contact the other shelves, walls, and the like. That is, the lifting shelf of the present invention can be installed in a small space, and space saving can be achieved.

  Further, when the second guide member A ″ is provided in a part of the parallel link mechanism 2 and the movable frame 3 is swinging forward, the article placement member 5 is moved horizontally back and forth by engaging with the second guide member A ″. Since the second guided recessed portion C ″ that prevents this is provided in the article placing member 5, the article placing member 5 pulled out to the front and lower side does not wobble in the front-rear direction.

Further, since the regulating member A and the first guide member A ′ are shared by the same member, the number of parts can be reduced and the configuration can be simplified.
Further, the regulating member A, the first guide member A ′, and the second guide member A ″ are shared by the same member, and the first guided recessed portion C ′ and the second guided recessed portion C ″ are shared by the same member. Therefore, the number of parts can be reduced and the configuration can be simplified.

It is a front view which shows one Embodiment of the raising / lowering shelf of this invention. It is a cross-sectional side view of the raising / lowering shelf in a back accommodation state. It is a cross-sectional side view of the raising / lowering shelf in a front horizontal drawer | drawing-out state. It is a cross-sectional side view of the raising / lowering shelf in the drawer state of the front lower side. It is principal part sectional drawing explaining the rocking | fluctuation control effect | action by a control member. It is principal part sectional drawing explaining the state which became rockable. It is principal part sectional drawing explaining the operation | movement which forcibly moves an article mounting member back. It is principal part sectional drawing explaining the state which controlled the front-back horizontal movement of the article mounting member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed housing | casing 2 Parallel link mechanism 3 Movable frame 5 Article mounting member A Control member A '1st guide member A "2nd guide member C' 1st guided recessed part C" 2nd guided recessed part H The front-back horizontal direction

Claims (6)

  A fixed housing (1), a movable frame (3) attached to the fixed housing (1) via a parallel link mechanism (2) so as to be swingable and pullable forward, and the movable frame (3) An elevating shelf comprising: an article placement member (5) attached so as to be retractable and retractable in the front-rear horizontal direction (H).   When the regulation member (A) is provided in a part of the parallel link mechanism (2) and the article placement member (5) is in the rear storage state, the regulation member (A) is one of the article placement member (5). The elevating shelf according to claim 1, wherein the elevating shelf is configured to interfere with a moving portion and prevent forward swinging by the parallel link mechanism (2) to restrict swinging of the movable frame (3) toward the front.   A first guide member (A ′) is provided in a part of the parallel link mechanism (2), and the article mounting member (5) is moved with respect to the movable frame (3) as the article placement member (5) is swung forward. A first guided recess (C ′) that engages while sliding with the first guide member (A ′) so that the front and rear horizontal position of the article placement member (5) is forcibly moved rearward is provided on the article. The raising / lowering shelf of Claim 2 provided in the mounting member (5).   A second guide member (A ″) is provided in a part of the parallel link mechanism (2), and the movable frame (3) is engaged with the second guide member (A ″) when the movable frame (3) is swinging forward. The elevating shelf according to claim 3, wherein the article placing member (5) is provided with a second guided recessed portion (C ") for preventing the article placing member (5) from horizontally moving back and forth.   The elevating shelf according to claim 3, wherein the regulating member (A) and the first guide member (A ') are shared by the same member.   The restriction member (A), the first guide member (A ′), and the second guide member (A ″) are also used as the same member, and the first guided recessed portion (C ′) and the second guided member are combined. The elevating shelf according to claim 4, wherein the guide recess (C ") is also used as the same member.

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