JP2022160189A - laboratory table - Google Patents

Abstract

To provide a laboratory table in which a preserved lid member does not interfere experiment, in which the lid member can be sanitarily and safely preserved, and a simplified structure, weight reduction and improvement of durability of a preservation structure of the lid member can be achieved.SOLUTION: There is provided a laboratory table comprising: a core part 2 on which a sink 4 is provided; and a top plate 2A on the core part 2. In the laboratory table 1, there are provided: a lid member 9 for detachably covering a top face opening of the sink 4; an opening 2a which is formed on a peripheral face of the core part 2 below the sink 4 and which has a width at least equal to that of the lid member 9; a storage space S which is formed in the core part 2 and stores the lid member 9 detached from the sink 4 through the opening 2a; a back plate 10 which holds in a standing posture, the lid member 9 detached from the sink 4 and stored in the storage space S; and holding means using a guide wire 12.SELECTED DRAWING: Figure 5

Description

TECHNICAL FIELD The present invention relates to a laboratory bench comprising a core part with a sink on top.

For example, science classrooms in schools and laboratories in research laboratories have laboratory benches that are used for various experiments. There is a core part having a sink provided on the upper part for cooling, and a top plate made of a table adjacent to the core part. In such a laboratory table, when the sink is not in use, the top opening of the sink is covered with a detachable rectangular plate-like lid member, and a wide work space is secured by the top surface of the lid member and the top plate. I'm trying to

When it becomes necessary to use the sink on the laboratory table, the cover covering the top opening of the sink is removed, and the storage location for the removed cover is a problem. For example, if the cover member is dirty, there are hygiene and safety problems during storage, and depending on the storage location, it may interfere with the work of using the sink.

Regarding this point, Patent Document 1 proposes a laboratory table in which the removed cover member 109 is vertically hung from the front side of the sink 104 of the core portion 102 for storage, as shown in FIG. ing. According to this laboratory table, as shown in FIG. 18A, the top opening of the sink 104 is covered with a cover member 109 when the sink 104 is not in use. When the sink 104 is to be used, the pair of left and right handles 121 provided on the upper surface of the lid member 109 are grasped to remove the lid member 109 from the sink 104, and the pair of left and right handles provided on the back surface of the removed lid member 109 is removed. Hooks (not shown) are hooked on a pair of left and right U-shaped engaged members 122 (see FIG. 18(a)) protruding from the front surface of the core portion 102, as shown in FIG. 18(b). , the lid member 109 is hung vertically.

Japanese Patent No. 5220913

However, in the laboratory table proposed in Patent Document 1, the lid member 109 stored in a vertically suspended state is exposed on the front side of the core portion 102 as shown in FIG. Therefore, when an experimenter such as a student or a researcher stands in front of the sink 104, the experimenter's thigh naturally touches the lid member 109, and when the experimenter moves laterally in front of the sink 104, the lid member touches the lid member. Problems such as the side of 109 hitting the experimenter occur. In addition, if the cover member 109 whose surface is soiled with chemicals or the like is exposed and supported by being vertically suspended, hygiene and safety problems cannot be solved. Furthermore, if the body of an experimenter or a moving object or device contacts or collides with the suspended lid member 109, the locking member provided on the lid member 109 and the core portion 102 will be damaged, and the lid member 109 will be removed. There is a risk of human injury due to falling, damage, or falling of the lid member 109 .

Further, in the laboratory table proposed in Patent Document 1, a handle 121 is protruded from the surface of the lid member 109, and a hook and a plurality of (four) projections as cushioning materials are attached to the rear surface. Therefore, there is a problem that the number of parts of the lid member 109 increases, and the structure of the lid member 109 becomes complicated and heavy. When the operation of removing the lid member 109 from the sink 104 and vertically suspending it is repeated many times, the location where the lid member 109 is suspended and supported is damaged or damaged, and the lid member 109 cannot be used for a long period of time. It may not be possible to stably hang and store the

The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to store the lid member in a sanitary and safe manner without disturbing the experimenter when the lid member is removed from the sink and stored. To provide a laboratory bench capable of simplifying the structure and reducing the weight of a lid member and improving the durability of the storage structure.

In order to achieve the above object, the present invention provides a laboratory table having a core portion provided with a sink on the top thereof, a top plate on the core portion, a cover member detachably covering an upper opening of the sink, and an opening having at least the width of the lid member formed in the outer peripheral surface of the core portion below the sink; a storage space formed inside the core for storing the lid member removed from the sink from the opening; and the storage space. and holding means for supporting the lid member removed from the housed sink in an upright posture.

Here, the holding means detachably engages a back plate arranged inside the storage space so that the rear surface of the lid member stored in the storage space faces the lid member stored in the storage space. and/or locking means for stopping.

According to the present invention, when the sink is to be used, it is removed from the sink, the removed lid member is stored in the storage space through the opening of the core portion, and the lid member is held in an upright state including an inclined state by the holding means. The lid member can be stably stored in the storage space by holding the lid member in the storage space. In this case, since the lid member hardly protrudes from the outer peripheral surface of the core portion, the lid member does not interfere with the experimenter, and exposure of the soiled lid member to the outside poses hygiene and safety concerns. No problems arise.

Further, the lid member can be stored in the storage space while being securely held by a simple structure in which the lid member stored in the storage space in an inclined state is locked by the locking means. The structure of the lid member is simplified, the weight of the lid member is reduced, and attachment/detachment of the lid member can be easily performed. In addition, since a simple structure can be used as the locking means, even if the lid member is stored in the storage space and taken out from the storage space many times, the locking means will not be damaged or broken. The durability of the storage structure of the lid member is enhanced.

1 is a front view of a laboratory bench according to Embodiment 1 of the present invention; FIG. FIG. 2 is a plan view of the laboratory table of FIG. 1; FIG. 2 is an enlarged side view of the laboratory table of FIG. 1; FIG. 2 is an enlarged front view of the core portion of the test bench of FIG. 1; FIG. 5 is a partial cross-sectional view taken along the line AA of FIG. 4; FIG. 6 is an enlarged detailed view of the B portion of FIG. 5; 4(a) to 4(e) are partial side cross-sectional views of the core portion showing the procedure for housing and storing the cover member of the laboratory table according to the first embodiment in the order of steps. FIG. 4 is an enlarged front view of a core portion of a laboratory bench according to Embodiment 2 of the present invention; CC line partial cross-sectional view of FIG. FIG. 10 is an exploded perspective view of the holding portion of FIGS. 8 and 9; FIG. 10(a) to 10(d) are partial side cross-sectional views of the core portion showing the procedure for accommodating and storing the cover member of the laboratory bench shown in FIGS. 8 and 9 in the order of steps. FIG. 11 is an enlarged front view of a core portion of a laboratory bench according to Embodiment 3 of the present invention; FIG. 12 is a cross-sectional view taken along line DD of FIG. (a) to (d) are a front view and a partial side cross-sectional view of the core portion showing the procedure for housing and storing the cover member of the laboratory table of FIGS. 12 and 13 in the order of steps. FIG. 11 is an enlarged front view of a core portion of a laboratory bench according to Embodiment 4 of the present invention; FIG. 15 is a partial cross-sectional view taken along line EE of FIG. 15; (a) to (d) are a front view and a partial side cross-sectional view of the core portion showing the procedure for housing and storing the cover member of the laboratory table of FIGS. 15 and 16 in the order of steps. FIG. 10 is a perspective view of the core portion of the laboratory table proposed in Patent Document 1, where (a) shows the state when the sink is not in use, and (b) shows the state when the sink is in use.

An embodiment of the present invention will be described below with reference to the accompanying drawings.
<Embodiment 1>
FIG. 1 is a front view of a laboratory bench according to Embodiment 1 of the present invention, FIG. 2 is a plan view of the same laboratory bench, FIG. 3 is a side view of the same laboratory bench, and FIG. 4 is an enlarged front view of the core portion of the same laboratory bench. FIG. 5 is a partial cross-sectional view along line AA of FIG. 4, FIG. 6 is an enlarged detailed view of B part of FIG. 5, and FIGS. FIG. 10 is a partial side cross-sectional view of the core portion showing how to store and store the lid member in the order of steps; In the following description, directions indicated by arrows in FIGS. 1 to 3 are defined as "vertical", "leftward" and "backward" directions, respectively.

The laboratory bench according to the present invention is installed on the floor FL of a school science classroom or the like. In the laboratory bench 1 shown as an example in FIGS. A core portion 2 having a shape and a pair of tables 3 installed adjacent to the core portion 2 on the left and right sides thereof.

A pair of pottery sinks 4 with an upper opening are arranged face-to-face on the front and back of the core part 2 . A pair of right and left water faucets 5 bent in an inverted U shape are erected on the far side), and an open/close valve 6 is arranged at the base of each faucet 5 (see FIG. 1). . On the left and right sides of a planar top plate 2A (see FIGS. 1 and 2) formed in the center of the upper surface of the core portion 2, there are a total of four pairs of front and rear gas plugs 7 for connecting gas burners and the like. is erected. Here, the upper surface of the top plate 2A is used as a decorative surface.

As shown in FIGS. 1 to 3, the pair of left and right tables 3 are each provided with a horizontal rectangular flat plate-shaped top plate 3A on the upper part, and each top plate 3A has core portions 2 at both left and right ends. and a rectangular plate-shaped post 8, respectively. Here, the upper surface of each top plate 3A is a decorative surface.

By the way, in the laboratory table 1 according to the present embodiment, the upper opening of the sink 4 that is not used is covered with a rectangular plate-shaped lid member 9 . Here, the pair of faucets 5 erected vertically when in use are laid down and stored in the sink 4 when not in use, so that these faucets 5 and the lid member 9 do not interfere with each other. Here, the top surface of the lid member 9 that covers the top opening of the sink 4 is a decorative surface 9a. The top plate 3A of the table 3 and the top plate 2A of the core part 2 are positioned on the same horizontal plane (flush with each other) to secure a wide work space on the test bench 1. FIG.

As shown in FIG. 5, below each sink 4 (only one side (front side) is shown in FIG. 5) of the rectangular box-shaped core portion 2, a storage space S having an opening 2a, which will be described later, is formed. As shown in FIGS. 4 and 5, at least a lid member is provided on the outer peripheral surface of the core portion 2 below each sink 4, which is the surface 2B facing the experimenter standing in front of the sink 4 in the example of the figure. A rectangular opening 2a having a lateral width of 9 is formed and continues to the storage space S. As shown in FIG.

As shown in FIG. 5, in the vicinity of the opening 2a of the storage space S (on the far side of the storage space S), a rectangular flat plate-like back plate 10 is arranged vertically so as to cover the opening 2a from the inside of the storage space. It is arranged in a state inclined obliquely with respect to (upper side inclined forward). Specifically, the back plate 10 is disposed so as to be inclined (tilted forward) at an angle α shown in the figure with respect to the vertical so that the upper end approaches the opening 2a.

Further, as shown in FIG. 4, in the vicinity of the opening 2a in the upper part of the storage space S of the core part 2, both left and right ends thereof are rotatably supported by support members 11 fixed to both side walls 2C of the storage space S. A guide wire 12 is provided which has laterally elongated substantially concave restraining portions 12a which protrude and bend over a predetermined length from both left and right ends of the supported guide wire 12 . Here, on the upper inner surfaces of the left and right side walls 2C defining the storage space S of the core portion 2, flat support members 11 are attached by screws 13, respectively. Both ends are rotatably supported.

More specifically, the guide wire 12 is made of a round metal rod, and as shown in FIG. 4, has a laterally elongated generally concave shape that protrudes and bends for a predetermined length from both left and right ends at the center in the width direction. A restraining portion 12a is provided. The guide wire 12 constitutes locking means for locking a part of the lid member 9 when the lid member 9 is stored in the storage space S of the core portion 2 as described later. When the member 9 is not stored in the storage space S, the restraining portion 12a of the guide wire 12 is at the position a shown in FIG. , is received by the back plate 10 under its own weight.

By the way, in the laboratory table 1 according to the present embodiment, the top opening of the sink 4 is covered with the lid member 9 when the sink 4 is not used as described above. The member 9 is detached from the sink 4, and the removed lid member 9 is introduced into the storage space S through the opening 2a opening in the core portion 2 and obliquely stored along the back plate 10.例文帳に追加

Here, a back plate 10 is obliquely arranged inside the storage space S so that at least a part of the decorative surface 9a of the lid member 9 stored in the storage space S abuts thereon; The guide wire 12, which is locking means for releasably locking the lid member 9, constitutes holding means for holding the lid member 9 stored in the storage space S in an inclined standing posture. In the first embodiment, the holding means is composed of the back plate 10 and the guide wire 12 as the locking means. You may configure means. This point also applies to second to fourth embodiments described later.

By the way, on the left and right sides of the bottom plate 2D of the storage space S, as an example shown in FIGS. It is fixed in parallel along the left-right direction in FIG. Here, the positioning block 14 guides and positions both lower ends in the width direction of the lid member 9 when the lid member 9 is introduced into the storage space S, and is shown in detail in FIG. A V-shaped notched engagement groove 14a is formed in a part of the cover member 9 for engagement with the widthwise lower end of the lid member 9. As shown in FIG.

Here, in the laboratory table 1 according to the first embodiment, the lid member 9 covering the top opening of the sink 4 when the sink 4 is not in use is removed from the sink 4 when the sink 4 is in use. It is housed and stored in the storage space S in the core portion 2. Hereinafter, the procedure for storing the lid member 9 in the storage space S will be described with reference to FIGS. 7(a) to 7(e).

When the sink 4 is used, the top opening of the sink 4 is covered with a lid member 9 as shown in FIG. 7(a). At this time, as described above, the guide wire 12, which constitutes the locking means, has its center restraining portion 12a raised obliquely, and is leaned against the back plate 10 by its own weight to the illustrated position (shown in FIG. 5). a position).

When using the sink 4, as shown in FIG. 7B, the lid member 9 covering the top opening of the sink 4 is manually removed from the sink 4, and the lid member 9 thus removed is removed. is introduced into the storage space S through an opening 2a opening in the outer peripheral surface 2B of the core portion 2. As shown in FIG. Then, the cover member 9 introduced into the storage space S is moved toward the inner side of the storage space S while being guided by the positioning blocks 14 made of resin at both lower ends in the width direction, as shown in FIG. 7(c). Then, the decorative surface (upper surface) 9a is kept in close contact with the back plate 10, and is manually maintained in an upright state inclined at the same angle of inclination α as the back plate 10 (the state indicated by the dashed line in FIG. 5). Depending on the position of the engagement groove 14a of the positioning block 14, the lid member 9 and the back plate 10 can be brought into contact with each other partially so that they are not substantially in close contact with each other. In this way, even if the upper surface 9a is soiled with chemicals or experimental animals, such as bodily fluids of dissected organisms or germs adhering to plants, the back plate 10 can be prevented from being soiled.

Next, the guide wire 12 is manually turned in the direction of the arrow (counterclockwise) as shown in FIG. 7(d) from the state shown in FIG. 7(c) (the state shown by the dashed line in FIG. 5). Then, the holding portion 12a of the guide wire 12 hangs down vertically by its own weight (rotates to position b shown in FIG. 5). When the hand supporting the lid member 9 is released from this state, the lid member 9 rotates counterclockwise about the lower edge by a counterclockwise moment due to its own weight. Rotation is prevented by engaging the restraining portion 12a of the guide wire 12 with the upper portion of the lid member 9 over the entire width. That is, the cover member 9 is prevented from collapsing because the front upper portion thereof is locked over substantially the entire width by the restraining portion 12a of the guide wire 12, and as shown in FIGS. is stored in the storage space S in an upright state inclined by an angle β (>α) shown in the drawing. At this time, the restraining portion 12a of the guide wire 12 is at position c shown in FIG.

Here, the lid member 9 in the state indicated by the dashed line in FIG. Assuming that the distance from the end of the center of gravity G of the member 9 is L, it is obtained by the following equation.

M = W · sin β · L
Since the lid member 9 stored in the storage space S in the manner described above does not fall down unless the guide wire 12 is lifted intentionally to release the locking of the lid member 9, the storage space S is stable. stored and retained.

When the sink 4 is not to be used, the lid member 9 is pulled backward from the state shown in FIG. , the guide wire 12 is turned to the position a shown in FIG. As shown in FIG. 7A, the lid member 9 thus taken out can be placed over the sink 4 to cover the top opening of the sink 4 with the lid member 9 .

As described above, according to the laboratory table 1 according to the first embodiment, when the sink 4 is used, the lid member 9 removed from the sink 4 is stored in the storage space S through the opening 2a of the core portion 2. Then, the lid member 9 is also tilted in the storage space S along the back plate 10 that is obliquely disposed in the storage space S, and the upper front surface of the lid member 9 is guided by a guide wire 12 over substantially the entire width. The lid member 9 can be stably held in the storage space S by locking. In this case, since the lid member 9 hardly protrudes from the outer peripheral surface of the core portion 2, the lid member 9 does not interfere with the experimenter, and the soiled lid member 9 is exposed to the outside. There are no operational or safety problems. In the first embodiment, if the lid member 9 is stored in the storage space S with the decorative surface 9a facing the back plate 10, even if the experimenter kicks the lid member 9 with a shoe or the like, the lid member 9 will remain closed. The decorative surface 9a of the member 9 is not damaged or stained, and the durability of the lid member 9 is enhanced.

In addition, the lid member 9 can be securely accommodated in the storage space S by a simple configuration in which a portion of the lid member 9 stored in the storage space S in an inclined state is locked by the guide wire 12. Since the cover member 9 can be stored, the structure of the cover member 9 can be simplified, the weight of the cover member 9 can be reduced, and the attachment/detachment of the cover member 9 can be easily performed. Since the guide wire 12 having a simple structure can be used as the locking means, the guide wire 12 can be damaged even if the cover member 9 is stored in the storage space S and removed from the storage space S many times. The durability of the storage structure of the lid member 9 is enhanced without causing damage or damage.

Furthermore, in Embodiment 1, both lower ends in the width direction of the lid member 9 stored in the storage space S are guided and positioned by the positioning blocks 14 arranged on the bottom plate 2D of the storage space S. An effect of preventing damage to the bottom plate 2D and the back plate 10 due to rubbing between the cover member 9 and the bottom plate 2D and the back plate 10 is also obtained. Note that the positioning block 14 is not limited to the embodiment. For example, it may be integrated with the bottom plate 2D, and the engagement groove 14a may also be a convex engagement projection. Also, the material of the positioning block 14 can be appropriately selected from metal, wood, etc. in addition to the resin.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described below with reference to FIGS. 8 to 11. FIG.

FIG. 8 is a front view of a core portion of a laboratory bench according to Embodiment 2 of the present invention, FIG. 9 is a partial cross-sectional view taken along the line CC of FIG. 8, FIG. 10 is an exploded perspective view of a holding portion, and FIG. 1 to 7D are partial side cross-sectional views showing the procedure for storing the cover member of the laboratory table according to Embodiment 2 of the present invention in the order of steps; The same reference numerals are given to the same elements as those in , and the repetitive description thereof will be omitted hereafter.

Embodiment 2 differs from Embodiment 1 only in the locking means of the lid member 9, and the rest of the configuration is the same as that of the laboratory table 1 according to Embodiment 1. FIG. In Embodiment 2, the locking means is composed of a recessed holding portion 15 having both ends rotatably supported at the center of the upper portion of the back plate 10 in the width direction and having a substantially recessed shape when viewed from the front.

As shown in FIG. 10, the concave holding portion 15 is formed by bending a round metal rod. Specifically, the concave restraining portion 15 is formed in a generally concave shape in a front view that protrudes and bends for a predetermined length from both left and right ends, and has a key-like engagement that bends in a generally L-shape in a side view at the distal end thereof. A stopping portion 15a is formed. Both left and right ends of the recessed restraining portion 15 form shafts 15b extending horizontally in the horizontal direction. By being inserted into the bearing portion 17a formed in the rear plate 10, the concave holding portion 15 is supported by the back plate 10 so as to be vertically rotatable about the left and right shaft portions 15b.

Also in the second embodiment, the lid member 9 covering the top opening of the sink 4 when the sink 4 is not in use is removed from the sink 4 and the core portion 2 is removed when the sink 4 is in use. 11(a) to 11(d).

When the sink 4 is used, the top opening of the sink 4 is covered with a lid member 9 as shown in FIG. 11(a). At this time, the concave restraining portion 15 that constitutes the locking means is in a vertically hanging state (position indicated by d in FIG. 9) due to its own weight.

When using the sink 4, as shown in FIG. 11(b), the lid member 9 covering the top opening of the sink 4 is removed from the sink 4. It is introduced into the storage space S through an opening 2 a that opens to the core portion 2 . Then, as shown in FIG. 11(c), the lid member 9 introduced into the storage space S is placed in the storage space in a state in which the concave holding portion 15 is lifted upward (the position indicated by e in FIG. 9). It is pushed into the back side of S, and its decorative surface (upper surface) 9a is maintained in a state of being inclined at substantially the same angle of inclination as the back plate 10 in a state of being in close contact with the back plate 10.例文帳に追加

Next, when the hand supporting the cover member 9 is released from the state shown in FIG. 11(c), the cover member 9 falls down due to the counterclockwise moment acting thereon, but as shown in FIG. 11(d). 9, the concave holding portion 15 rotates downward (counterclockwise) by its own weight to the position f shown in FIG. Therefore, the lid member 9 is prevented from falling down by the recessed restraining portion 15, and as shown in FIGS. Stored.

The lid member 9 stored in the storage space S in the manner described above does not fall down unless the recessed restraining portion 15 is intentionally lifted to release the engagement with the lid member 9. Therefore, the lid member 9 is stable in the storage space S. stored and stored.

When the sink 4 is not to be used, the lid member 9 is tilted backward from the state shown in FIGS. ), the recessed holding portion 15 is lifted upward to release the engagement of the engagement portion 15a with the lid member 9, and the lid member 9 is taken out of the storage space S in the reverse order of the storage procedure. As shown in FIG. 11(a), the lid member 9 can be placed over the sink 4 to cover the top opening of the sink 4 with the lid member 9. As shown in FIG.

As described above, also in the second embodiment, when the sink 4 is used, the lid member 9 removed from the sink 4 is stored in the storage space S from the opening 2a of the core portion 2, and the storage space S The lid member 9 is also slanted in the storage space S along the obliquely arranged back plate 10, and the lid member 9 is accommodated by locking the upper portion of the lid member 9 with the recessed holding portion 15. It can be stably stored in the space S. In this case, since the lid member 9 hardly protrudes from the outer peripheral surface of the core portion 2, the lid member 9 does not interfere with the experimenter, and the soiled lid member 9 is exposed to the outside for sanitary reasons. and safety problems will not occur.

In addition, the same effects as those obtained in the first embodiment are also obtained in the second embodiment.

<Embodiment 3>
Next, Embodiment 3 of the present invention will be described below with reference to FIGS. 12 to 14. FIG.

FIG. 12 is a front view of a core portion of a laboratory bench according to Embodiment 3 of the present invention, FIG. 13 is a partial cross-sectional view taken along line DD of FIG. 12, and FIGS. FIG. 8 is a front view and a partial side cross-sectional view of a core portion showing, in order of steps, how to store and store the cover member of the laboratory table according to form 3; The same elements are denoted by the same reference numerals, and the repetitive description thereof will be omitted.

Embodiment 3 differs from Embodiments 1 and 2 only in the locking means of the lid member 9, and the rest of the configuration is the same as the configuration of the laboratory table 1 according to Embodiments 1 and 2. is. In Embodiment 3, the locking means is supported by a support shaft 18a such as a screw on the upper portion of the inner surface at the center in the width direction of the peripheral edge of the opening 2a of the core portion 2 so as to be rotatable about one end in the longitudinal direction. It is composed of a stopper plate 18, and this stopper plate 18 normally hangs down vertically as shown in FIGS. 12 and 13 due to its own weight.

Also in the third embodiment, the lid member 9 covering the top opening of the sink 4 when the sink 4 is not in use is removed from the sink 4 and the core portion 2 is removed when the sink 4 is in use. 14(a) to 14(d).

When the sink 4 is used, the top opening of the sink 4 is covered with a lid member 9 as shown in FIG. 14(a). At this time, the stopper plate 18, which constitutes the locking means, is in a vertically suspended state due to its own weight.

When using the sink 4, as shown in FIG. 14(b), the lid member 9 covering the top opening of the sink 4 is removed from the sink 4. It is introduced into the storage space S through an opening 2 a that opens to the core portion 2 . 14(c), the lid member 9 introduced into the storage space S is placed on the far side of the storage space S with the stopper plate 18 lifted upward (retracted sideways). The decorative surface (upper surface) 9a is kept in close contact with the back plate 10 and inclined at the same angle as the back plate 10. - 特許庁

Next, when the stopper plate 18 and the lid member 9 are released from the state shown in FIG. 14(c), the stopper plate 18 hangs vertically under its own weight and the lid member 9 is lifted as shown in FIG. 14(d). The lid member 9 falls due to the counterclockwise moment acting on it, but the fall of the lid member 9 is prevented by the stopper plate 18 engaging with the upper portion of the lid member 9 in the width direction, and the lid member 9 is vertically oriented. It is stored in a storage space S while being held in an inclined upright state.

The lid member 9 stored in the storage space S in the manner described above does not fall down unless the stopper plate 18 is intentionally rotated to release the locking of the lid member 9. Stored and stored stably.

When the sink 4 is not used, the lid member 9 is pulled backward from the state shown in FIG. Then, the stopper plate 18 is rotated upward to retreat from the opening 2a, and the cover member 9 is removed from the storage space S in the reverse order of the storage procedure. 2, the lid member 9 can cover the top opening of the sink 4 by covering the sink 4 from above.

As described above, also in the third embodiment, when the sink 4 is used, the lid member 9 removed from the sink 4 is stored in the storage space S from the opening 2a of the core portion 2, and the storage space S The lid member 9 is also tilted in the storage space S along the obliquely disposed back plate 10, and the upper portion of the lid member 9 is locked by the stopper plate 18, thereby moving the lid member 9 into the storage space. It can be stably stored in S. In this case, since the lid member 9 hardly protrudes from the outer peripheral surface of the core portion 2, the lid member 9 does not interfere with the experimenter as in the first and second embodiments. There is no hygienic or safety problem due to exposure of 9 to the outside.

In addition, the same effects as those obtained in the first and second embodiments are also obtained in the third embodiment.

<Embodiment 4>
Next, a fourth embodiment of the present invention will be described below with reference to FIGS. 15 to 17. FIG.

15 is a front view of a core portion of a laboratory bench according to Embodiment 4 of the present invention, FIG. 16 is a partial cross-sectional view taken along line EE of FIG. 15, and FIGS. FIG. 10 is a front view and a partial side cross-sectional view of a core portion showing, in the order of steps, how to store and store the lid member of the laboratory table according to form 4; The same elements are denoted by the same reference numerals, and the repetitive description thereof will be omitted.

In Embodiment 4, only the locking means of the lid member 9 is different from that in Embodiments 1 to 3, and the rest of the configuration is the same as the configuration of the laboratory table 1 according to Embodiments 1 to 3. is. In this embodiment, the locking means is a pair of rectangular plate-shaped locking blocks 20 whose lower ends are rotatably supported by screws 19 on both upper sides in the width direction of the periphery of the opening 2a of the core portion 2. consists of Here, as shown in FIG. 15, each locking block 20 has its rotation center (the center of the screw 19) deviated from the center of the locking block 20 in the width direction by ε. there is

Also in the fourth embodiment, the lid member 9 covering the top opening of the sink 4 when the sink 4 is not in use is removed from the sink 4 and the core portion 2 is removed when the sink 4 is in use. 17(a) to 17(d), the lid member 9 is stored in the storage space S and stored therein.

The top opening of the sink 4 is covered with a lid member 9 when the sink 4 is not used. At this time, the left and right locking blocks 20 constituting the locking means are tilted toward the inside of the opening 2a by their own weight (the left and right locking blocks 20 are in a substantially V-shaped state when viewed from the front). )It is in. That is, as described above, the center of rotation of each locking block 20 is positioned outward in the width direction (on the side opposite to the opening 2a) with respect to the center in the width direction of the locking block 20 by ε (see FIG. 15). 15 and 17(a), each locking block 20 is tilted toward the inside of the opening 2a by its own weight ( The left and right locking blocks 20 are in a substantially V-shaped state when viewed from the front. The inclination angle of each locking block 20 is regulated by notches and stoppers (not shown).

When the sink 4 is to be used, as shown in FIG. 17(a), the lid member 9 covering the top opening of the sink 4 is removed from the sink 4, and the removed lid member 9 is attached to the core. It is introduced into the storage space S through an opening 2 a that opens to the part 2 . When the cover member 9 is introduced, the upper end of the cover member 9 supported in the engagement groove 14a of the positioning block 14 is pushed into the storage space S with the lower end as the center of rotation. As a result of this pushing, the left and right outer sides of the lid member 9 are brought into contact with the opposing inner sides of the left and right locking blocks 20 that are tilted in a substantially V shape, and the locking blocks 20 are retracted from the opening 2a. direction around the screw 19 (FIG. 17(b)).

When the upper end of the lid member 9 is further pushed into the storage space S in this state, the lid member 9 passes over the left and right locking blocks 20 that are rotating, and the upper surface 9a comes into close contact with the front surface of the back plate 10. becomes (FIG. 17(c)→FIG. 17(d)). On the other hand, the left and right engaging blocks 20 through which the lid member 9 has passed are rotated back to their original positions by their own weights and positioned in front of the lid member 9 . When the hand pushing the lid member 9 is released, the locking block 20 returns to its original position and supports the lid member 9, which tends to fall forward, and locks the lid member 9 (FIG. 17(d)). .

As described above, the lid member 9 shown in FIGS. 16 and 17(d) is stored in the storage space S while being held in an upright state inclined with respect to the vertical.

The lid member 9 stored in the storage space S in the manner described above does not fall down unless the left and right locking blocks 20 are intentionally and simultaneously rotated to retreat from the opening 2a. stably housed and stored in

When the use of the sink 4 is finished, the lid member 9 is pulled backward from the state shown in FIGS. As shown, by rotating the left and right locking blocks 20 to the side to be retracted from the opening 2a (substantially erected), the locking of the lid member 9 by the locking blocks 20 is released and the locking is released. Since the lid member 9 falls forward due to its own weight, the lid member 9 is caught by hand, and the lid member 9 is taken out from the storage space S in the reverse order of storage, and the lid member 9 is put on the sink 4 from above. The top opening of the sink 4 can be covered with the lid member 9 .

As described above, also in the fourth embodiment, when the sink 4 is used, the lid member 9 removed from the sink 4 is stored in the storage space S from the opening 2a of the core portion 2, and the storage space S The lid member 9 is also tilted in the storage space S along the back plate 10 which is obliquely disposed, and the upper portion of the lid member 9 is locked by the left and right locking blocks 20, thereby locking the lid member 9. can be stably stored in the storage space S in an upright state. In this case, since the lid member 9 hardly protrudes from the outer peripheral surface of the core portion 2, the lid member 9 does not interfere with the experimenter, and the soiled lid member 9 is exposed to the outside for sanitary reasons. and safety problems will not occur.

In addition, effects similar to those obtained in the first to third embodiments can also be obtained in the fourth embodiment.

In Embodiments 1 to 4 described above, all of the backboards 10 are installed in the storage space S in a forward tilting posture (angle α). Although not shown, the present invention may be provided with the back plate 10 tilted backward or in a substantially upright position. In the storage space S in which the back plate 10 is tilted backward, the lid member 9 can be supported by leaning against the back tilted back plate 10, so locking means need not be provided. Further, when the back plate 10 is substantially upright, the lid member 9 is also substantially upright or stands at a slight angle of inclination. .
It will be explained below that the present invention has a configuration in which the lid member 9 to be stored can be supported in an upright state inside the storage space S without the back plate 10 being provided. The back plate 10 also serves as a decorative plate that covers the interior of the storage space S when the lid member 9 is not stored.

As a holding means for holding the lid member 9 removed from the sink 4 in the upright posture in the storage space S, instead of the above-described holding means by the locking means such as the back plate 10 and the guide wire 12, or locking means may be used. A linear body, a rod-shaped body, or a strip-shaped body placed in the storage space S so as to face the front surface, the rear surface, or both the front and rear surfaces of the lid member 9 stored in the storage space S in combination with means. It may be held by any part of the body.

In Embodiments 1 to 4 described above, the locking means for detachably supporting the lid member 9 housed in the storage space S is configured as simply as possible in terms of safety and cost. In the present invention, when the lid member 9 to be housed is pushed in, the lid member 9 is automatically locked by the locking means having a locking structure using an appropriate latch mechanism or spring, and the lid member 9 is supported in an upright posture. It can be a structure that can be done.

The application of the present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the technical ideas described in the claims, the specification and the drawings. is.

REFERENCE SIGNS LIST 1 lab bench 2 core 2A top surface of core 2B outer peripheral surface of core 2C side wall of core 2D bottom plate of core 2a opening of core 4 sink 9 lid member 9a decorative surface of lid member 10 back plate 12 guide Wire (locking means)
12a Guide wire restraining portion 14 Positioning block 15 Concave restraining portion (locking means)
18 stopper plate (locking means)
20 locking block (locking means)
S Storage space ε Deviation amount of locking block 20 α Tilt angle of back plate 10

Claims (7)

In a core part with a sink on the top and a laboratory table with a top plate on the core part,
a lid member detachably covering the top opening of the sink;
an opening having at least the width of the lid member formed in the outer peripheral surface of the core portion below the sink;
a storage space formed inside the core for storing the lid member removed from the sink from the opening;
a holding means for supporting a lid member removed from the sink stored in the storage space in an upright posture;
A laboratory bench comprising: The holding means detachably locks a back plate arranged inside the storage space so that at least a part of the lid member stored in the storage space abuts against the lid member stored in the storage space. 2. A laboratory bench according to claim 1, comprising either or both locking means. 3. The laboratory table according to claim 1, wherein a positioning block for guiding and positioning the lower end of the lid member stored in the storage space is arranged at the bottom of the storage space. The locking means is composed of a guide wire having both left and right ends rotatably supported by both side walls of the storage space near the opening, and having restraining portions that protrude and bend from both the left and right ends by a predetermined length. 4. The laboratory table according to any one of claims 1 to 3, wherein the front upper portion of the lid member is locked over substantially the entire width by the restraining portion of the guide wire. The locking means is rotatably supported by the back plate at both left and right ends thereof, and is composed of restraining portions that project and bend from the left and right ends by a predetermined length. A laboratory table according to any one of claims 1 to 3, wherein a part of the upper edge of the front surface of said cover member is locked. The locking means is composed of a stopper plate supported on the upper inner surface of the opening so as to be rotatable about the upper end in the longitudinal direction. 4. The laboratory table according to any one of claims 1 to 3, which is partly locked. The locking means is a pair of locking blocks supported on both sides in the width direction of the peripheral edge of the opening so that the upper sides thereof are rotatable in the left-right direction. It comprises a pair of locking blocks that are present and are offset with respect to the center of the lateral width, and the locking blocks lock the upper portions of both edges in the width direction of the front surface of the lid member accommodated. 4. The laboratory bench according to any one of 3.

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