JPH0574360U - Shelf board lifting device for display shelves - Google Patents

Abstract

(57) [Summary] [Purpose] To enable the height position of shelf boards to be adjusted steplessly without making major modifications to existing display shelves. [Structure] A pair of left and right main columns (1) with guide rails (9) and (21) mounted vertically and a pair of left and right lifts with brackets (16) for placing shelf boards ( The shelf board mounted on the bracket (16) is synchronously moved up and down along the left and right guide rails (9) and (21) by an elevating and lowering drive device. The height position of (8) can be adjusted steplessly, and the height position can be adjusted without withdrawing the shelf board and the articles placed thereon.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a display shelf, and more particularly, to a display shelf including a shelf elevating device that can adjust the height of the shelf infinitely.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, as a display shelf in which the height of a shelf board can be adjusted, a display shelf configured as shown in FIG. 4, for example, is known. In this display shelf, a pair of left and right horizontal leg members (102) are fixed to the lower ends of a pair of left and right vertical main columns (101), and a plurality of left and right main columns (101) and leg members (102) are provided. The horizontal beams (103) of the book are connected to each other to form an L-shaped frame. A pair of front and rear abutments (104) are attached to the lower surfaces of the left and right legs (102), respectively.

The main pillar (101) has a rectangular shape with a hollow cross section, and a large number of vertically elongated slits (105) are provided in the front surface of the main pillar (101) in a row at a predetermined pitch in the vertical direction. The slits (105) in the left and right main columns (101) are symmetrically provided at the same height position.

The bracket (106) for holding the shelf board is made of a plate material having an appropriate thickness, and has a horizontal upper edge on which the shelf board (108) is placed and a vertical edge that abuts the main pillar (101). A plurality of hooks (107) that are inserted into the slits (105) of the main pillar (101) are projected on the rear edge at a pitch that matches the slit (105). I am doing it. The bottom surface of the base of each hook (107) has a notch slightly wider than the wall thickness of the front wall of the main pillar (101) .After inserting each hook (107) into the slit (105), By pushing down 106, the notch is engaged with the lower side of the slit (105), and the bracket (106) is fixed to the main pillar (101).

The display shelf shown in FIG. 4 has a plurality of slits (105) arranged in a row on the left and right main columns (101) at a desired height position and is fitted with a bracket (106). Allows the height of the bracket (106) to be mounted, and thus the height of the shelf (108) mounted on the bracket (106) to be adjusted with the pitch of the slits (105) as a unit. ..

[0006] FIG. 5 is a perspective view showing a shelf board lifting device for a display shelf described in Japanese Patent Application No. 3-73729 by the present applicant. Each platform (111) is mounted so that it can be moved up and down, and a plurality of vertically long slits (113) are formed on the front of each platform (111) to attach one bracket (112) each. 4 is provided with a lifting drive device that engages the same bracket (112) as the conventional device of FIG. 4 and that vertically moves the pair of left and right lifts (111) synchronously so that they are always at the same height. It is a thing.

[0007]

[Problems to be solved by the device]

 In the conventional display shelf of FIG. 4, the height position of the shelf plate (108) can only be adjusted in units of the pitch of the slits (105), and cannot be set at an intermediate position. However, this is inconvenient when it is desired to finely adjust the height position of the shelf plate (108).

Further, in order to hold the shelf plate (108) horizontally, the one at the equal height position is selected from the large number of slits (105) respectively arranged in the left and right main columns (101). Then, the bracket (106) needs to be attached, but if the distance between the left and right main columns (101) is large, the left and right brackets (106) may be attached at different heights. Moreover, in that case, there is an inconvenience that it is only when the shelf plate (108) is placed that the left and right heights are found to be unequal.

Further, when it becomes necessary to display the articles and change the height position of the shelf board (108) in use, all the articles must be removed and the shelf board (108) must be removed. There is an inconvenience that the mounting position of the bracket (106) cannot be changed.

In the device of FIG. 5, the pair of left and right lifts (111) are always kept at the same height by the lift drive device so as to move up and down synchronously, thus eliminating the above-mentioned inconvenience. For vertical movement, vertical racks are installed in the left and right main columns (110), and the shafts (114) installed horizontally on the left and right lifts (111). By engaging the pinions fixed to the racks with the racks and driving the shaft (114) to rotate, the left and right lifts (111) are synchronously moved up and down.

Since the structure of the main pillar (110) is completely different from the conventional display rack of FIG. 4, the device of FIG. 5 is applied to the conventional display rack used as the existing equipment. I can't. However, the existing display shelves can also adjust the height position of the shelves steplessly, and, at the time of adjusting the height position, withdrawing the article being displayed and removing the shelves without the hassle of removing the shelves, It is desirable to be able to adjust the height position.

[0012] Based on this demand, the present invention provides a shelf lifting device for a display shelf that allows the height position of the shelf to be adjusted steplessly without significantly modifying the conventional display shelf. The purpose is to do.

[0013]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is configured as follows.

[0014] A pair of left and right main columns of the display shelves are vertically mounted on each pair of left and right guide rails, and vertically movable along each guide rail. A left and right pair of lifts equipped with plate holding brackets, and a lift drive device that vertically moves the pair of left and right lifts synchronously so that they are always at the same height. Shelf board lifting device.

The pair of left and right guide rails may be fixed to the facing inner surface sides of the pair of left and right main columns.

On the rear surface of the pair of left and right guide rails, a plurality of hooks that engage with a plurality of slits that are vertically arranged at a predetermined pitch on the front surfaces of the pair of left and right main pillars are formed. The guide rails may be attached to the front surface of the corresponding main pillar by engaging with the slits of the main pillar.

The elevating and lowering drive device is erected on a pair of racks vertically fixed to the left and right guide rails and a pair of left and right elevating tables, and is driven by a pair of racks at both ends for engagement and driving. It is preferable that the drive shaft is fixed to the drive shaft and the drive shaft is rotated around the drive shaft.

It is desirable that the means for rotationally driving the drive shaft is composed of a worm gear fixed to the drive shaft and a worm that is rotationally driven by meshing with the worm gear.

[0019]

[Action]

 Since the guide rails are attached to the inside or front surface of the pair of main pillars and the shelf board is configured to move up and down along the guide rails, the height of the shelf board can be adjusted without making a large modification to the existing display shelves. A shelf lifting device that adjusts the position steplessly can be installed.

[0020]

【Example】

 FIG. 1 is a front view showing a first embodiment of a display shelf to which the present invention is applied. The main part of this display shelf is the same as the conventional display shelf shown in FIG. 4, and the pair of left and right horizontal leg members (2) are attached to the lower ends of the pair of left and right vertical main pillars (1). The left and right main pillars (1) and leg members (2) are connected by a plurality of horizontal beams (3) to form an L-shaped frame. A pair of front and rear abutments (4) are attached to each.

The first embodiment has six upper and lower shelves, of which the lower three shelves (7) are arranged on the front surface of the main pillar (1) as in FIG. It is placed on the bracket (6) that is attached to the slit (5) provided.

Guide rails (9) are fixed to the upper half portions of the inner surfaces of the main pillars (1) facing each other, and the upper three shelf boards (8) are attached along the guide rails (9). It is configured so that it can be moved up and down.

FIG. 2 is a perspective view showing the elevating device for the shelf plate (8). Fig. 2 shows the left and right pair of left and right lifting devices. The right lifting device is symmetrical with the left lifting device except for the worm gear, worm and gear case described later. It has a shape.

The guide rail (9) is formed in a rectangular cross section in which both U-shaped edges are bent inward, and is fixed to the main pillar (1) by an appropriate number of countersunk bolts (10). is there.

A vertical rack (11) having teeth on the rear surface is fixed to the front side inside the guide rail (9), and the bent portion on the front edge side is located rearward of the tooth tips of the rack (11). A protrusion is formed on the rear side, and together with the bent portion on the trailing edge side, a movement guide for the pinion (12) is formed.

The pinion (12) is fixed to both ends of a drive shaft (13) which is constructed by connecting left and right lifting devices, and the rack (11) is guided by the front and rear bent portions of the guide rail (9). It meshes with and can roll up and down.

Inside the left and right pinions (12) of the drive shaft (13), a slide base (14) having a U-shaped cross section is fitted, and at the bottom thereof, inside the guide rail (9). A guide roller (15) that can roll up and down is pivotally supported. The slide base (14) is supported by the pinion (12) and the guide roller (15) so as to be able to move up and down along the guide rail (9).

Brackets (16) for supporting the shelves (8) are provided on the front surface of the slide base (14) in a protruding manner.

A worm gear (18) fixed to the drive shaft (13) is provided with a gear case (17) having a U-shaped cross section on the inner surface side of the left sliding base (14) shown in FIG. Is housed. Below the worm gear (18), a worm (20) fixed to a worm shaft (19) in the front-rear direction is meshed.

The worm shaft (19) is pivotally supported by the front and rear edge plates of the gear case (17), and the front end is projected forward from the gear case (17).

As described above, the lifting device on the right side is the same as the lifting device on the left side of FIG. 2 except for the gear case (17), the worm gear (18), the worm shaft (19) and the worm (20). It is constructed symmetrically.

When a crank handle (not shown) is engaged with the front end of the worm shaft (19) protruding forward from the gear case (17) to rotate the worm shaft (19), the worm shaft (19) passes through the worm (20) and the worm gear (18). The drive shaft (13) rotates, the left and right pinions (12) mesh with the rack (11), and they roll along the guide rails (9) to move the left and right lifts (14) synchronously up and down. The height position of the shelf plate (8) mounted on the bracket (16) can be continuously adjusted.

In the embodiment of FIG. 1, the guide rails (9) are attached to the upper half of the main pillar (1) so that the upper three shelves (8) among the upper and lower six shelves. It is possible to move up and down by the above-mentioned means, and the lower three shelves 7 are fixed like the conventional display shelves, but other forms are also possible.

For example, contrary to the case of FIG. 1, the guide rail (9) is attached to the lower half of the main pillar (1) so that the upper three steps are fixed and the lower three steps can be moved up and down. It can be used as a shelf board. Alternatively, the guide rails (9) can extend over the entire height of the main pillar (1) so that all the shelves can be moved up and down.

FIG. 3 is a perspective view showing an essential part of the second embodiment of the present invention. This embodiment is the same as the first embodiment except that the means for attaching the guide rail to the main pillar (1) is different.

The guide rail (21) of the second embodiment is formed in the same shape as the guide rail (9) of the first embodiment, and a vertical rack (not shown) is fixed to the inner rear surface side. The same is true.

On the rear surface of each guide rail (21), a plurality of hooks (22) are provided at a position where they engage with the slits (5) of the corresponding main pillar (1). The guide rails (21) are attached to the front surface of the main pillar (1) by engaging the (21) with the slits (5) respectively.

In the first embodiment, in order to mount the guide rails (9) on the inner surfaces of the main pillar (1) facing each other with bolts (10), female threads are formed in the main pillar (1). Although it is necessary, in the second embodiment, the guide rails (21) are attached by using the slits (5) provided in the main pillar (1), so that there is no need to attach the guide rails (21) to the ready-made display shelves. There is no need to add processing, and it can be carried out easily.

[0039]

[Effect of the device]

 The present invention has the following effects. (a) It is possible to install an elevating device that adjusts the height position of the shelves in a stepless manner without making a major modification to the existing display shelves.

(B) Since the article can be raised and lowered while being placed on the shelf, it is not necessary to take down the article or remove the shelf or the bracket when adjusting the height position.

(C) A conventional fixed type shelf plate and a vertically movable shelf plate can be arbitrarily combined and used, if necessary.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a display shelf to which a shelf lifting device of the present invention is applied.

FIG. 2 is a perspective view showing a main part of the first embodiment of the present invention.

FIG. 3 is a perspective view showing a second embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional display shelf.

FIG. 5 is a perspective view showing a conventional display shelf including a shelf lifting device.

[Explanation of symbols]

 (1) Main pillar (2) Leg material (3) Cross beam (4) Abutment (5) Slit (6) Bracket (7) Shelf plate (fixed type) (8) Shelf plate (elevation type) (9) Guide rail (11) Rack (12) Pinion (13) Drive shaft (14) Lifting platform (15) Guide roller (16) Bracket (17) Gear case (18) Worm gear (19) Worm shaft (20) Worm (21) Guide Rail (22) Hook

Claims (5)

[Scope of utility model registration request] 1. A pair of left and right main rails vertically mounted on a pair of left and right main pillars of a display shelf, and vertically movable along each guide rail. A display shelf characterized by comprising a pair of left and right lifts equipped with brackets for holding shelf boards, and a lifting drive device for vertically lifting the pair of left and right lifts synchronously so that they are always at the same height. Shelf lifting device. 2. A shelf board lifting device for display shelves according to claim 1, wherein a pair of left and right guide rails are fixed to opposite inner surface sides of the pair of left and right main columns. 3. A plurality of hooks are formed on the rear surfaces of the pair of left and right guide rails to engage with a plurality of slits vertically arranged on the front surface of the pair of left and right main pillars at a predetermined pitch. The shelf lifting device for display shelves according to claim 1, wherein each of the guide rails is attached to the front surface of the corresponding main pillar by engaging the hook of the above with the slit of the main pillar. 4. An elevating and lowering drive device is installed on a pair of racks vertically fixed to left and right guide rails and a pair of left and right elevating stands, and pinions for engaging and driving a pair of racks at both ends. The shelf board lifting device for a display shelf according to any one of the preceding claims, comprising a fixed drive shaft and means for rotationally driving the drive shaft around the shaft. 5. The shelf lifting device for display shelves according to claim 4, wherein the means for rotationally driving the drive shaft comprises a worm gear fixed to the drive shaft and a worm that is rotationally driven by meshing with the worm gear. .