Experimental bench

Abstract

To make it possible to reliably prevent an instrument to be stored, despite a simple structure thereof, from falling and to easily put in and take out the instrument without requirement for a complicated mechanism.SOLUTION: A laboratory table comprises a fall prevention device 6 having: a pair of arm parts 162 of which one end side is rotatably and pivotally supported on a top face of a storage shelf 60 which is supported by a shelf frame fixed to a deep end side of a work desk, on which work is performed, and can store various instruments to be used on the work table face; a movable guard 62 for fall prevention which is connected to the other end side of the pair of arm parts 162, and is movable in a vertical direction at a front end part of the storage shelf 60 by rotation of the pair of arm parts 162; and a click hinge 165 which is attached to one end side of the pair of arm parts 162, and can move the movable guard 62 in the vertical direction in association with putting-in and taking-out of the instruments with respect to the top face of the storage shelf 60.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to an experimental bench where various experiments, tests, etc. are conducted.

Background Art

[0002] Generally, in facilities where experiments, tests, etc. are conducted, various experiments, tests, etc. are carried out using an experimental bench.

[0003] Conventionally, bookshelves and shelf boards (shelves) have been provided on experimental benches to store equipment such as experimental instruments, testing equipment, or chemicals. It is desirable for the bookshelves and shelf boards to be equipped with a fall prevention device to prevent the equipment from falling.

[0004] In particular, as a fall prevention device applicable to such an experimental bench, an article fall prevention device with a stopper member movable up and down has been proposed (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in conventional experimental benches, although the application of an article fall prevention device can prevent the fall of articles and facilitate the loading and unloading operations of articles, the article fall prevention device has a problem that the structure of the mechanism for moving the stopper member is complex. This has been a factor hindering the application of the article fall prevention device to experimental benches.

[0007] The present invention has been made in view of the above, and an object thereof is to provide a laboratory bench that can prevent equipment from falling from a storage shelf without requiring a complicated mechanism and that allows easy access to the equipment to be stored.

Means for Solving the Problems

[0008] To achieve the above object, a laboratory bench according to one aspect of the present invention includes a work table on which work is performed, and Both a shelf frame fixed to an end of the work table, A pair of and a storage shelf supported by the shelf frame and capable of storing various equipment used on the work table, A pair of and a fall prevention device that is movably provided on the upper surface of the storage shelf and prevents the equipment stored in the storage shelf from falling. The fall prevention device includes There is a support groove having a circular cross-sectional shape with an upward opening portion provided along the left-right direction of the work table a pair of arm portions on the upper surface of the storage shelf, It has a cylindrical rotating portion pivotally supported by the support groove at one end side, and the other end side is and a guard member for fall prevention that is connected to the other end sides of the pair of arm portions and is movable in the vertical direction at the front end portion of the storage shelf by the rotation of the pair of arm portions, Arranged so as to protrude from the opening portion and is characterized by including The as the pair of arm portions move up and down along with the loading and unloading of the equipment with respect to the upper surface of the storage shelf. Provided on the rotating portion along with the loading and unloading of the equipment with respect to the upper surface of the storage shelf. A free-stop type click hinge designed such that a predetermined catching force acts on the pair of arm portions and.

Advantages of the Invention

[0009] According to the present invention, it is possible to provide a laboratory bench that can prevent equipment from falling from a storage shelf without requiring a complicated mechanism and that allows easy access to the equipment to be stored.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that in the embodiments, the drawings schematically show the outline of the invention and are different from the actual ones.

[0012] [One Embodiment] FIG. 1 is a perspective view showing the schematic configuration of an experimental bench 1 according to an embodiment. FIG. 2 is a front view of the experimental bench 1, and FIG. 3 is a side view of the experimental bench 1 shown from the side of the liftable storage cabinet (down cabinet) 50. FIG. 4 is a cross-sectional view of the experimental bench 1 along the line IV-IV in FIG. 2.

[0013] The experimental bench 1 according to the present embodiment is an experimental bench equipped with a swing-type liftable storage cabinet 50, and has a structure that allows the operator (user) to take in and out the equipment stored in the liftable storage cabinet 50 almost in the working posture without using a step ladder or the like.

[0014] That is, as shown in FIGS. 1 to 4 for example, this experimental bench 1 is configured to include a workbench 10 as a work table for a user to perform operations such as experiments and inspections, and a storage shelf 20 disposed at the upper rear of the workbench 10 for storing various equipment used in the work. Examples of the various equipment stored in the storage shelf 20 include chemicals such as experimental instruments, inspection equipment, or reagents used in the work.

[0015] Here, as an example of the system, the experimental bench 1 composed of the storage shelf 20 and the workbench 10 disposed on the front side of the storage shelf 20 is arranged in a face-to-face manner such that the workbenches 10 are line-symmetric on both sides of the storage shelf 20, and a case equipped with a shared sink 30 is illustrated.

[0016] Note that since each experimental bench 1 with the storage shelf 20 as the center has the same structure including the workbench 10 and the storage shelf 20, hereinafter, mainly one (for example, the front side) of the experimental benches 1 will be described.

[0017] In the experimental bench 1, the workbench 10 includes, for example, a plurality (here, four) of drawers 12, and mobile side tables (cabinet wagons) 14 and 15 disposed below the drawers 12, and enables work in a state of sitting on a chair (not shown).

[0018] The storage shelf 20 includes, for example, two sturdy steel shelf frames (bridge structures) 40 in the left-right (arrow X in the figure) direction, a liftable storage cabinet 50 disposed on one side of the shelf frame 40, a storage shelf (shelf board / shelf step) 60, and a storage shelf 70 disposed on the other side of the shelf frame 40.

[0019] The shelf frame 40 is a pair of support columns, and includes a connecting pillar (extension pillar) 42 connected to the support pillar 41, and a first erection part 43 and a second erection part 44 erected between the connecting pillars 42.

[0020] Here, the support pillar 41 connects the workbenches 10 to each other and enables the addition of the storage shelf 20 by retrofitting the shelf frame 40. That is, the support pillar 41 is, for example, at the rear of the workbench 10 (in the direction of the illustrated arrow Y), and is firmly attached and fixed to the vicinity of both the left and right ends and the vicinity of the center on the back end side of the worktable surface SF over substantially the entire length in the vertical direction (the illustrated arrow Z) of the workbench 10.

[0021] Therefore, by firmly connecting the connecting pillar 42 to the support pillar 41 so that, for example, the storage shelf 20 does not rattle, it becomes easy to add the storage shelf 20 with a sturdy shelf frame 40.

[0022] The experimental bench 1 according to the present embodiment is not limited to the case where it is initially provided with the storage shelf 20. For example, by attaching the support pillar 41 in advance between the workbenches 10 arranged face-to-face, it becomes easy to add the storage shelf 20 later and systematize it.

[0023] Note that the storage shelf 20 is made into a unitized structure with a front and back integrated common structure in advance, so that it can be used by the users of each experimental bench 1 from their respective workbench 1 sides. Of course, considering workability, it is also possible to configure the storage shelf 20 differently for each experimental bench 1.

[0024] Also, the shelf frame 40 is not limited to the case where a plurality of them are arranged side by side in the left-right (the illustrated arrow X) direction. For example, it may be a single unit.

[0025] In the storage shelf 20, the storage shelf 70 is arranged, for example, to be divided into four parts (2 tiers × 2 rows) vertically and horizontally between the first installation part 43 and the second installation part 44 of the right shelf frame 40. The storage shelf 70 is communicated so that it can be shared by both experimental benches 1, and a fall prevention guard 70a is provided at each opening serving as an access opening.

[0026] As the elevating storage cabinet 50, for example, three elevating shelves 51 are provided below the first installation part 43 of the left shelf frame 40 via a link mechanism. Each elevating shelf 51 is pulled forward so as to avoid the storage shelf 60 as appropriate and lowered near the work table surface SF by operating the elevating handle 52 by the user of the experimental table 1.

[0027] Thereby, the user can pull the elevating shelf 51 of the elevating storage cabinet 50 close to the hand while sitting on the chair (posture). As a result, it becomes possible to easily take in and out the equipment stored in the elevating shelf 51, and the work efficiency is significantly improved.

[0028] Each elevating shelf 51 is, for example, divided into upper and lower two stages, and a fall prevention guard 51a is provided at each access opening.

[0029] The storage shelf 60 is provided, for example, with substantially the same width on the front surface part (front side) of the second installation part 44 of the left shelf frame 40. On the upper surface of the storage shelf 60, a storage part 61 that is flat and can store various equipment is fixed to the front surface part of the connecting pillar 42 so as to be substantially at the same height as the upper surface of the second installation part 44.

[0030] In the storage part 61, for example, as shown in FIGS. 5 and 6, a movable guard (guard member) 62 for fall prevention that constitutes a fall prevention device 6 described later is provided at the access opening side (front end part). The movable guard 62 can be easily pushed down from a predetermined guard position by hand or the like when the user takes in and out the equipment, for example, by a click hinge manufactured by Sugatsune Kogyo Co., Ltd. (details will be described later). The pushed-down movable guard 62 is automatically returned to the guard position.

[0031] Note that FIG. 5 is an enlarged view of the vicinity of part V in FIG. 1, and here, the state where the elevating shelf 51 is not pulled out is shown. FIG. 6 is an enlarged view of the vicinity of part VI in FIG. 4.

[0032] As shown by the arrow in the figure, since the movable guard 62 can change its position, it can suppress the accidental fall of the equipment from the storage part 61 and make it easier to take in and out the equipment with respect to the storage part 61.

[0033] On the lower surface of the storage shelf 60, as shown in FIGS. 1 to 3 for example, it is possible to attach a holder 90 for temporarily holding (storing and housing) equipment in use. In addition to attaching to the lower surface of the storage shelf 60, the holder 90 can also be attached to, for example, the second installation part 44 of the shelf frame 40 on the right side.

[0034] Between the connecting pillars 42 of the shelf frame 40 behind the work table surface SF of the workbench 10, as shown in FIG. 7 for example, a storage box 81 storing a power tap or a gas burner (not shown) is provided. The storage box 81 is always covered by a lid part (lid body) 82 that can be opened and closed manually.

[0035] Between the storage box 81 and the like on the inner end side of the work table surface SF, as shown in FIG. 7, a drip liquid recovery groove (liquid recovery part) 85 for recovering liquid (dripping liquid) spilled on the work table surface SF is disposed in the vicinity of the lid part 82. The drip liquid recovery groove 85 is for preventing the dripping liquid from entering the storage box 81, and is, for example, a rectangular groove with a width of about 15 mm that is disposed along the left - right direction (X direction) on the inner side of the work table surface SF and is open upward.

[0036] The drip liquid recovery groove 85 is provided with a groove cover (cover member such as a rubber packing) 87 that uniformly has a slight gap 86 serving as a recovery port on the work table surface SF side and covers the upper surface opening part of the drip liquid recovery groove 85. The groove cover 87 has, for example, a cross - sectional shape that is curved in an arc shape upward.

[0037] This suppresses the dripping liquid from advancing toward the storage box 81 beyond the groove cover 87, and enables the dripping liquid to be reliably collected in the dripping liquid collection groove 85 through the gap 86. Therefore, even if liquid is accidentally spilled onto the work table surface SF during operations such as experiments and inspections, it is possible to prevent the dripping liquid from entering the storage box 81 and causing leakage in power taps or the like arranged in the storage box 81.

[0038] In addition, by providing the groove cover 87, it is possible to prevent instruments, writing utensils, etc. from falling into the dripping liquid collection groove 85.

[0039] In particular, when the groove cover 87 is configured to be detachable from the dripping liquid collection groove 85, it is also suitable for cleaning the inside of the dripping liquid collection groove 85.

[0040] Note that the dripping liquid collection groove 85 can also be configured to be detachable together with the lid portion 82, for example.

[0041] The sink 30 is for cleaning instruments used in experiments, inspections, etc. In addition to the faucet 31 and the sink 33, it is equipped with, for example, a recovery device 35 for recovering used chemicals, etc. The sink 30 is also equipped with a splash guard 36.

[0042] On the back side of the sink 30, between each experimental table 1, a unit device 37 equipped with a recovery tank 88 for storing the dripping liquid recovered by the dripping liquid collection groove 85 and a drain pipe 89 is arranged. The recovery tank 88 is preferably configured to be easily detachable from the unit device 37 for draining.

[0043] Note that it is also possible to provide, for example, pipes for water supply and drainage for the sink 30 inside this unit device 37.

[0044] It is desirable that the work table surface SF of the experimental table 1, the upper surface of the sink 30, and the upper surface of the unit device 37 be at the same height in consideration of workability.

[0045] Here, the configuration of the storage shelf 60 and the fall prevention device 6 provided on the storage shelf 60 will be further described.

[0046] The storage shelf 60 included in the experimental table 1 according to the present embodiment is formed of a metal such as aluminum, and has a cross-sectional shape in which the base end side is thick and gradually becomes thinner toward the tip (front end) side, as shown in FIGS. 8 and 9(a) and (b), for example. Further, the storage shelf 60 has a length substantially the same as the width in the left-right direction (X direction) of the second installation portion 44 of the left shelf frame 40.

[0047] The base end side of the storage shelf 60 is abutted against the front surface portion of the second installation portion 44 of the left shelf frame 40 via the connection member 66, and in that state, it is fixed to the front surface portion of the connecting pillar 42 by the end cap 161 locked by the screw 167 (see FIG. 6, for example).

[0048] The height of the storage portion 61 on the upper surface of the storage shelf 60 is adjusted so as to be substantially the same as the height of the upper surfaces of the connection member 66 and the second installation portion 44. Thereby, a storage space as the storage portion 61 is secured wider by the amount of the upper surfaces of the connection member 66 and the second installation portion 44.

[0049] Note that a support groove 64 for mounting the fall prevention device 6 described later is formed on the upper surface of the storage shelf 60, and a mounting groove 63 for attaching the holder 90 is formed on the lower surface of the storage shelf 60. The mounting groove 63 has a substantially trapezoidal cross-sectional shape having a downward opening portion formed along the left-right direction (X direction) of the experimental table 1. The support groove 64 has a substantially circular cross-sectional shape having an upward opening portion formed along the left-right direction of the experimental table 1.

[0050] A fall prevention device 6 including a pair of arm portions 162, a movable guard (guard member) 62 for fall prevention, and a free-stop type click hinge (hinge member) 165 is provided on the upper surface of the storage shelf 60.

[0051] This fall prevention device 6 is configured to prevent the equipment stored in the storage section 61 of the storage shelf 60 from falling, and to facilitate the loading and unloading of the equipment into and out of the storage section 61.

[0052] That is, in the fall prevention device 6 according to the present embodiment, one end (base end portion) side of the pair of arm portions 162 is formed in a cylindrical shape and is rotatably supported by the support groove 64 on the upper surface of the storage shelf 60. A movable guard 62 for preventing fall, which is movable in the vertical direction at the front end portion of the storage shelf 60 by the rotation of the arm portion 162, is spanned between the other ends (tip portions) of the pair of arm portions 162.

[0053] When descending, it is desirable to adjust the movable guard 62 so that it is positioned below the height of the storage section 61 so as not to interfere with the loading and unloading of the equipment.

[0054] In the support groove 64, a click hinge 165 for vertically moving the movable guard 62 is attached to one end side of the pair of arm portions 162 in accordance with the loading and unloading of the equipment with respect to the storage section 61 on the upper surface of the storage shelf 60.

[0055] As the click hinge 165, for example, it is desirable to use a click hinge MPH-30 manufactured by Sugatsune (LAMP). This click hinge MPH-30 is a free stop type suitable for opening and closing a folding mobile phone or the like, and is designed so that a predetermined catching force acts during movement. Thereby, the position of the movable guard 62 can be arbitrarily changed according to the user's manual operation, that is, the movable guard 62 can be kept stopped at an arbitrary position (predetermined catching force). Therefore, by gently applying a force in the direction of further pressing down from the stop position, the position of the movable guard 62 can be gradually lowered, and after being moved to the lowermost stage, it automatically returns to a predetermined guard position for fall prevention.

[0056] Thus, the movable guard 62 can be easily lowered to any position by the user's easy manual operation, and moreover, it is possible to easily avoid the situation where the movable guard 62 bounces up vigorously or remains pushed down when it returns.

[0057] Note that between the pair of arm portions 162, a hinge receiver 163 for closing the opening portion of the support groove 64 while maintaining the distance between the pair of arm portions 162 is inserted.

[0058] In addition, in the present embodiment, a case where three movable guards 62 are arranged in the left - right direction on the storage shelf 60 is illustrated, but it is not limited to this. The number, length, etc. of the movable guards 62 with respect to the storage shelf 60 can be appropriately changed according to the equipment to be stored.

[0059] According to the fall prevention device 6 having such a configuration, normally, the movable guard 62 suppresses the fall of the equipment from the storage part 61, and by the user pushing down the movable guard 62 as the equipment is taken in and out, it is possible to avoid the movable guard 62 from interfering with the taking in and out of the equipment.

[0060] Therefore, when taking in and out the equipment with respect to the storage part 61, the equipment can be taken in and out safely and smoothly, and it can be made very convenient to use.

[0061] As described above, according to the present embodiment, it is easy to make it compact, and while having a simple structure, it is possible to surely prevent the fall of the stored equipment.

[0062] That is, the fall prevention device 6 does not require a complicated mechanism, and thus, when the fall prevention device 6 is disposed on the storage shelf 60, it does not require extra space, and while having a simple structure, it is possible to surely prevent the fall of the stored equipment.

[0063] Moreover, even when storing chemicals such as reagents as storage equipment, it is possible to surely prevent dropping and to make it easy to take in and out, resulting in a laboratory bench that is safe and very convenient for users.

[0064] <Other Embodiments> As described above, one aspect of the present invention has been described by way of examples of embodiments. However, these are merely examples, and the scope of the invention described in the claims can be variously modified without departing from the gist of the invention.

[0065] In addition, the laboratory bench 1 can be appropriately applied according to the use, such as in experimental facilities and research facilities of companies, universities, and specialized inspection institutions.

Explanation of Reference Numerals

[0066] 1 Laboratory bench 6 Fall prevention device 10 Workbench (work table) 20 Storage shelf 40 Shelf frame 60 Storage shelf 61 Storage part 62 Movable guard (guard member) 64 Support groove 162 Pair of arm parts 165 Click hinge (hinge member) SF Work table surface

Claims

1. A work table on which work is performed, A pair of shelf frames fixed to both ends of the work table, Supported by the pair of shelf frames and capable of storing various equipment used on the work table, a storage shelf provided with a support groove having an upward opening portion and a circular cross-sectional shape along the left-right direction of the work table, A fall prevention device movably provided on the upper surface of the storage shelf to prevent the equipment stored in the storage shelf from falling, Comprising, The fall prevention device, A pair of arm portions having a cylindrical rotating portion pivotally supported by the support groove at one end side and arranged such that the other end side protrudes from the opening portion on the upper surface of the storage shelf, A guard member for fall prevention connected to the other end side of the pair of arm portions and movable in the vertical direction at the front end portion of the storage shelf by the rotation of the pair of arm portions, A free-stop type click hinge provided on the rotating portion of the pair of arm portions and designed such that a predetermined catching force acts on the pair of arm portions as the equipment is taken in and out on the upper surface of the storage shelf, An experimental table characterized by comprising.

2. The experimental table according to claim 1, wherein the guard member is pushed downward by a manual operation of an operator as the equipment is taken in and out of the storage shelf.

3. The experimental table according to claim 1 or 2, wherein the guard member is pushed downward below the storage shelf when it descends.

4. The experimental table according to claim 1, wherein a holder for temporarily holding equipment in use or the like can be attached to the lower surface of the storage shelf.

Images