JP6027497B2 - Lifting shelf - Google Patents

Description

  The present invention relates to a lifting shelf.

  Conventionally known as an elevating shelf, the hanging shelf body is used by switching between a drawer-down state at the front and a storage state at the rear-upper side by a swinging operation by a parallel four-bar linkage mechanism with respect to the fixed peripheral frame. (For example, refer to Patent Document 1).

JP 2003-24152 A

However, when a conventional lifting shelf is installed in a kitchen or the like, for example, the hanging shelf main body is pulled out to the front and lower side, so that the hanging shelf main body hinders the use of the cooking table and sink in the pulled out state. . Therefore, in order to use the cooking table and sink, it is troublesome to store the hanging shelf body upward, and it is inconvenient that it is not possible to work in front while pulling out the hanging shelf body and putting in and out articles. there were.
Furthermore, when raising / lowering the hanging shelf main body, there is a possibility that an article stored in the hanging shelf main body falls down due to an impact when the hanging shelf main body is pulled out and stopped.

  Therefore, the present invention reduces the number of link members, simplifies the structure, and further ensures a sufficient working space in the foreground even when the hanging shelf body is in a state where articles can be taken in and out. An object is to provide a lifting shelf that can be used.

In order to achieve the above object, a lifting shelf according to the present invention bulges to the front with a fixed portion, a suspension shelf main body attached to the fixed portion so as to move up and down in a straight line through the vertical linear guide means. An upper arm member and a lower arm member that are pivotally attached to the fixed portion so that the tip portion can move up and down while drawing an arcuate locus, a rail portion formed along the lower end edge of the side wall of the suspension rack body, and the rail A roller that can roll along the portion, a handle arm that has the roller and extends forward, and the tip of the upper arm member and the tip of the lower arm member are vertically extended to extend downward. And a hanging arm connected and fixed to the handle arm.
Further, the suspension rack main body that moves up and down in a straight line is provided with two dampers arranged vertically and close to the rear to prevent the suspension rack from stopping at an upper limit and a lower limit. .

According to the present invention, the hanging shelf body moves up and down in a straight line, so that it is possible to use a cooking table and a sink at a lower position at all times, and the structure of the link mechanism and the like can be simplified and compact. it can.
Furthermore, the posture of the hanging shelf main body is stable (without wobbling), and the lifting and lowering operation can be performed by grasping the handle arm with the hand smoothly and lightly. In particular, since the handle arm is disposed in the vicinity of the rolling part where the roller rolls on the rail part, when a human force acts on the handle arm as an external force, the rotational moment acting on the rolling part is increased. Therefore, the roller travels lightly on the rail portion, and the operational feeling is light and smooth.

It is a perspective view of the accommodation state (the highest rise state) of the hanging shelf main body which shows one Embodiment of this invention. It is a right view of the storage state of a hanging shelf main body. It is a perspective view of the halfway state which lowered | hanged only about half the hanging shelf main body. It is a right view of the state in the middle of lowering the hanging shelf main body by about half. It is a perspective view of the lowest state which lowered the hanging shelf main body to the minimum. It is a right view of the lowest state which lowered the hanging shelf main body to the minimum. It is a principal part right view of the highest rise state. It is a principal part perspective view of the highest state. It is a principal part right view of the middle state which lowered | hung the hanging shelf main body only about 1/4. It is a principal part perspective view of the middle state which lowered | hung the hanging shelf main body only about 1/4. It is a partially broken principal part left view of the middle state which lowered | hung the hanging shelf main body only about 1/4. It is a principal part right view of the middle state which lowered | hanged the suspension shelf main body by about half. It is a principal part perspective view of the middle state which lowered | hung the hanging shelf main body only about half. It is a partially broken principal part left side view of the halfway state which lowered | hung the hanging shelf main body only about half. It is a principal part right view of the middle state which lowered | hanged the suspension shelf main body only about 3/4. It is a principal part perspective view of the middle state which lowered | hung the hanging shelf main body only about 3/4. It is a partially broken principal part left view of the middle state which lowered | hung the hanging shelf main body only about 3/4. It is a principal part right view of the lowest fall state which lowered | hanged the suspension shelf main body to the minimum. It is a principal part perspective view of the lowest state which lowered the suspension shelf main body to the minimum. It is a partially broken left side view in the lowest lowered state where the hanging shelf body is lowered to the lower limit.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
In FIG. 1 to FIG. 5, there is a fixing portion 10 that is fixed to a fixed object such as a wall (not shown), a cabinet, or a fixed support frame. The sheet metal fixing members 10A and 10A are provided separately on the right and left sides. Reference numeral 2 denotes a hanging shelf body having a bottom wall (bottom plate) 6, left and right side walls (side plates) 5, and a ceiling wall (top plate) 7. The hanging shelf body 2 is attached to the fixed portion 10 via the upper and lower linear guide means 30, and the hanging shelf body 2 moves up and down linearly.
In the illustrated example, the vertical linear guide means 30 is formed (or fixed) on the guide portion 8 attached to the rear of the left and right side walls 5 and 5 and extending in the vertical direction, and the fixing member 10A (fixing portion 10). It consists of upper and lower rails 9 and the like.

  FIGS. 7 to 20 are diagrams illustrating the main part, FIGS. 7 and 8 correspond to FIGS. 1 and 2, FIGS. 12 to 14 correspond to FIGS. 3 and 4, and 18 to 20 correspond to FIGS. 5 and 6.

Reference numeral 21 denotes an upper arm member that is pivotally attached to a fixed portion 10 (fixed member 10A) with a shaft 16 so that a tip end portion 21A can move up and down while drawing an arcuate locus that bulges toward the front.
41 is arranged below the upper arm member 21 and draws an arcuate locus that bulges forward to allow the tip 41A to move up and down and pivot on the fixed portion 10 (fixed member 10A) with a shaft 42. A lower arm member worn.
The upper arm members 21 and 21 and the lower arm members 41 and 41 are arranged one on each of the left and right sides.
A rail portion 14 is formed (in a concave groove shape) along the lower end edge 5A on the outer surface side of each of the left and right side walls 5 of the hanging shelf body 2.
Two rollers 33 and 33 are fitted on each of the left and right sides so as to be able to roll along the rail portion 14, and 2 on the left and right rear end bases of the handle arm 11 extending forward. A number of rollers 33 are provided.

The handle arm 11 includes left and right arm portions 12 and 12 and a grip rod 34 that bridges the front ends of the arm portions 12 and 12 on the left and right sides. The base portion of the arm portion 12 is branched, and the two rollers 33 and 33 are attached to the horizontal piece portion, and the vertical piece portion corresponds to an attachment piece portion for connecting and fixing to the lower end of the hanging arm 13 described later. To do. Moreover, the arm portion 12 is a stretched shape toward the front (and somewhat lower) stretched length L ₁₂ from the roller 33 of the arm portion 12 is short dimension. Here, the short dimension means 40% to 90% of the longitudinal dimension (depth dimension) of the hanging shelf body 2. That is, since the arm portion 12 has a short dimension, the rotational moment due to the external force applied to the grip rod 34 by the hand of the person acting near the roller 33 is reduced, and an excessive force acts on the roller 33. Can be prevented. As a result, the roller 33 can easily roll along the rail portion 14, and there is an advantage that the operational feeling becomes light.

By the way, 13 extends downward while pivoting the distal end portion 21A of the upper arm member 21 and the distal end portion 41A of the lower arm member 41 to form a vertical piece at the proximal end of the arm portion 12 of the handle arm 11. The hanging arm is connected and fixed by fixing tools such as bolts 35 and 35.
The pivot shafts 36 and 37 of the hanging arm 13, the upper arm member 21 and the lower arm member 41, and the shafts 16 and 42 are disposed at the apex positions of the parallelogram. That is, the upper arm member 21, the lower arm member 41, the drooping arm 13 and the fixing member 10A constitute a so-called parallel link mechanism, and the drooping arm 13 always maintains a drooping state (vertical state), and as a whole. The operation of drawing an arcuate locus that bulges forward is performed.
During operation, when the grip rod 34 is moved in the front-rear direction by a human hand, the drooping arm 13 moves in the front-rear direction, and accordingly, the distal end portions 21A, 41A of the upper arm member 21 and the lower arm member 41 are circular. While swinging up and down while drawing an arcuate trajectory, the roller 33 and the rail portion 14 at the lower position are given a force to move the hanging shelf body 2 up and down, and are moved up and down linearly through the upper and lower linear guide means 30. .

The fixing member 10A has a substantially oblong rectangular shape in a side view, and the fixing member 10A is provided for preventing the suspension shelf body 2 that moves up and down in a straight line form from stopping at an upper limit and a lower limit. Two dampers 18 and 19 are arranged vertically. Accordingly, the two dampers 18 and 19 are disposed closer to the rear, and the fixing member 10A and the like have an advantage that the front and rear can be made compact.
Further, one damper 18 is an upper limit damper, and the hanging shelf body 2 does not act from the lower limit to the intermediate position, and acts as a buffer only near the upper limit. Therefore, when the person performs the ascending operation, the ascending operation can be performed lightly and quickly from the lower limit to the intermediate position, and the decelerating (buffering) action can be effectively performed in the vicinity of the final upper limit.
The other damper 19 is a lower limit damper, and the hanging shelf main body 2 does not act from the upper limit to the intermediate position, and only acts in the vicinity of the lower limit. Accordingly, when the person performs the lowering operation, the lowering operation can be performed lightly and quickly from the upper limit to the intermediate position, and the deceleration (buffering) can be effectively performed in the vicinity of the final lower limit.

The dampers 18 and 19 are fitted into slits 48 and 49 formed vertically in the fixing member 10A and in parallel with each other so that the cylinder (cylindrical portion) can slide up and down. The vertical length dimension of the slits 48 and 49 is set larger than the longest dimension of the dampers 18 and 19, and the difference corresponds to “relief” described later.
The base portion of the upper arm member 21 is formed in a large plate piece portion 21B in side view, and an operation link 39 having a pin 40 fitted in the arcuate guide hole portion of the plate piece portion 21B at one end, The dampers 19 and 18 are linked to each other via a linkage mechanism such as another operating link 38 that is pivotally connected by a pin 43.
As the upper arm member 21 swings around the shaft 16, the dampers 19 and 18 are compressed and extended (in the vertical direction).

  The operation of the lower limit damper 19 will be described. As shown in FIG. 11, “escape H” exists above the slit 49. After that, as shown in FIG. 14, when the upper arm member 21 swings downward, the “escape H” disappears, and the upper end of the lower limit damper 19 comes into contact with the upper end of the slit 49. The buffering action is performed from the lowered position of about half of the hanging shelf main body 2 shown in FIG. Therefore, from the upper limit to the middle position where the hanging shelf main body 2 is pulled down, it can be operated easily and lightly by hand. The pressing terminal 43A of the lower limit damper 19 is provided on the pin 43, and the pressing terminal 43A operates up and down via the operating link 39.

Next, the operation of the upper limit damper 18 will be described. That is, through FIG. 20 (FIGS. 18 and 19) to FIG. 17 (FIGS. 15 and 16), FIG. 14 (FIGS. 12 and 13), and FIG. 11 (FIGS. 9 and 10), FIG. A description will be given of how the upper limit damper 18 operates when sequentially switching to the ascending position (upper limit).
As shown in FIG. 20, “escape H” exists below the slit 48. After that, as shown in FIG. 17, when the upper arm member 21 swings upward, the “relief H” decreases, and the “relief H” disappears as shown in FIG. The lower end of the upper limit damper 18 abuts and a buffering action is performed from about half ascending position of the hanging shelf body 2 shown in FIG. 14, and then the upper limit damper 18 is compressed sequentially in FIGS. Go. Therefore, the hanging shelf body 2 is lightly and quickly moved from the lower limit (the lowest lowered state) shown in FIGS. 5, 6 and 18 to 20 to the intermediate position shown in FIGS. 3, 4 and 12 to 14. It is convenient because it can be lifted by hand.
The pressing terminal 44A of the upper limit damper 18 is fixed to the shaft 44 at the upper end of the operating link 38, and the pressing terminal 44A operates up and down via the operating link 38.

Incidentally, the lower limit damper 19 is accommodated in the slit 49 in an inverted manner, and the upper limit damper 18 is accommodated in the slit 48 in a normal state.
Further, a spiral spring 20 is provided near the lower portion of the fixing member 10A. The spiral spring 20 is covered with a cover member 26, and is connected to and secured to the central axis 20A of the spiral spring 20. And the plate piece portion 21B of the upper arm member 21 are interlocked and connected by the connecting arm 23. As a result, the upper arm member 21 is constantly urged and biased in the direction of swinging upward. Therefore, the load on the suspended shelf main body 2 and the stored items (inside it) is reduced, and the operation when the user raises the suspended shelf main body 2 is assisted.

Then, the uppermost (upper) position shown in FIG. 7, the upper arm member 21, and its pivotal journaling shaft 16, and a pivot shaft 27 of the distal end portion 21A, the straight line L ₁ connecting the vertically upward at the upper As a result, the upper arm member 21 is inclined to the rear side by this angle α. α is preferably 2 ° to 9 °. Accordingly, the upper limit state can be maintained by using the total weight of the hanging shelf main body 2 and the stored item (so as not to swing forward).

  As described above, the present invention includes the fixed portion 10, the suspension shelf body 2 attached to the fixed portion 10 so as to move up and down linearly via the upper and lower linear guide means 30, and the circle bulging forward. The upper arm members 21 and 21 and the lower arm members 41 and 41 pivotally attached to the fixed portion 10 so that the tip portions 21A and 41A can move up and down along an arcuate locus, and the lower ends of the side walls 5 and 5 of the suspension rack body 2 Rail portions 14, 14 formed along the edges 5A, 5A, a roller 33 rollable along the rail portions 14, 14, a handle arm 11 having the roller 33 and extending forward. The upper arm member 21 and the lower arm member 41 have a drooping arm 13 that extends downward and is connected to and fixed to the handle arm 11 while vertically connecting the distal end portion 21A of the upper arm member 21 and the distal end portion 41A of the lower arm member 41. Therefore, the intended purpose can be achieved with a simple configuration, and the hanging shelf body 2 is always stable. The raising / lowering operation can be performed lightly and smoothly while maintaining the posture.

Conventionally, a lifting rack with a complicated and large structure using a parallel six-joint link mechanism was also known, but it can be simplified, made compact and lighter, and its posture is always stable. However, it can be operated easily.
In particular, the handle arm 11 to which the force is applied directly from the user's hand and the roller 33 / rail portion 14 are close to each other, so that the torsion, pressing force, rotational moment, etc. acting on the roller 33 / rail portion 14 etc. However, the roller 33 does not break down, and the roller 33 smoothly rolls to obtain a light operational feeling. In addition, the vertical arm 13 is simply applied with a force in the front-rear direction, and unnecessary external forces and moments such as twisting, bending, and twisting are not applied, and the upper and lower arm members 21 and 41 and the above-described hanging arm 13 are not affected. The parallel link formed by etc. operates smoothly and lightly.
Further, at the upper and lower intermediate positions where about half of the parallel link to which the largest torsion is applied is swung (see FIGS. 3 and 4), the parallel link is the most stable (side view) deployed state and does not wobble. With this, it is possible to move up and down quickly.

  In addition, two dampers 18 and 19 for preventing the suspension shelf body 2 that moves up and down linearly from stopping at the upper and lower limits are arranged vertically and closer to the rear. Therefore, the fixing member 10A is compact and can be reduced in weight, and in a use such as a kitchen, a disturbing object does not exist in the foreground, and a suitable lifting shelf can be obtained. In addition, by performing buffering intensively at the upper limit and the lower limit, the other ascending and descending operations can be performed lightly and smoothly.

2 Hanging shelf body 5 Side wall 5A Bottom edge
10 Fixed part
11 Handle arm
13 Drooping arm
14 Rail section
18, 19 damper
21 Upper arm member
21A Tip
30 Vertical linear guide means
33 Laura
41 Lower arm member
41A Tip

Claims (2)

  A fixed part (10), a suspension shelf body (2) attached to the fixed part (10) so as to move up and down linearly via an upper and lower linear guide means (30), and an arcuate locus bulging forward The upper arm members (21) and (21) and the lower arm members (41) and (41) pivotally attached to the fixed portion (10) so that the front end portions (21A) and (41A) can move up and down, and the suspension rack Rails (14) (14) formed along the lower edges (5A) (5A) of the side walls (5) (5) of the main body (2), and rolling along the rails (14) (14). A movable roller (33), a handle arm (11) having the roller (33) and extending forward, a tip end portion (21A) of the upper arm member (21), and the lower arm member (41) And a drooping arm (13) that is extended downward and pivotally connected to the handle arm (11) while being vertically connected to the tip end portion (41A). Lifting shelf to do.   Two dampers (18) and (19) for preventing the suspension shelf body (2) moving up and down linearly from stopping at the upper and lower limits in a vertical manner and closer to the rear The elevating shelf according to claim 1, which is disposed on the top.

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