JP6088155B2 - Hand arm insertion opening movable hood - Google Patents

Description

  The present invention relates to a movable hood with a hand-arm insertion opening such as a so-called draft chamber and a clean bench that isolates a work space so that an operator is not affected by the work when the work is processed in the work space.

  In this type of hand-arm insertion opening movable hood, when processing an object to be processed placed in the work space, specifically, an object to be processed such as chemicals and bacteria harmful to the human body and the environment, The work space is isolated so that the living room space is not affected by the workpiece. Therefore, the front of the work space can be opened and closed with a transparent glass door. When an operator processes an object to be processed, the door is opened, and the operator inserts a hand through the front opening of the door to process the object to be processed.

  Even when an operator inserts his / her hand into the work space from the front opening to process the workpiece, the air in the work space is exhausted so that harmful gases and bacteria do not leak from the work space. Thus, the atmospheric pressure in the work space is made lower than the outside air.

  Furthermore, in order to improve the sealing performance, the operator completely closes the opening / closing door of the front opening and processes the workpiece in the work space through rubber gloves attached to the opening provided in the opening / closing door. I have to.

  However, since the opening for attaching the rubber gloves is provided at a predetermined position of the open / close door, the reachable range in the work space has been limited. For this reason, it has been pointed out that there is a problem that the hand cannot be reached at both ends or the upper side of the object to be processed, or processing can be performed only from the front of the object to be processed.

Japanese Patent No. 2801864

  The present invention has been made in view of the above, and an object thereof is to provide a hand-arm insertion opening movable hood that can widely use a work space such as a draft chamber or a clean bench.

To achieve the above object, the movable hood with a hand-arm insertion opening according to claim 1 is configured to close the front opening with a transparent plate that moves while maintaining the front opening on the front surface of the work space in the vertical direction. And insertion hole position moving means that allows the position of the insertion hole for inserting the operator's hand provided in the front opening closing means to be moved in the left-right direction while maintaining the closed state. And
The gist of the hand hood insertion opening movable hood according to claim 2 is characterized in that the lower end of the transparent plate of the front opening closing means is movable beyond the lower end of the front opening downward.

The front opening closing means of skill insertion opening movable hood according to claim 3 is directed to subject matter in that it comprises weight reducing means for reducing the weight of the transparent plate for closing.

The insertion hole position moving means of the hand arm insertion opening movable hood according to claim 4 includes a horizontally long opening formed in the front opening closing means and an independent opening while maintaining the opening closed. The gist of the invention is to have a plate material that is movably mounted in a sliding door manner in the left-right direction and an insertion hole for inserting the operator's hand provided in the plate material.

  A hand-arm insertion opening movable hood in which the suction air sucked from the front opening on the front side of the work space passes through the work space and is discharged to the outside from the rear exhaust opening, and the front opening while closing the front opening And a vertically movable transparent plate made of a transparent plate so that the inside of the work space can be visually observed, and a horizontally long opening formed in the vertically movable transparent plate. And two left-and-right moving transparent plates made of a transparent plate material that is attached to the opening so as to be movable in the left-right direction while closing the opening. It may be configured to have two left and right movable transparent plates each having an insertion hole for inserting an operator's hand.

  In such a hand-arm insertion opening movable hood, the vertically movable transparent plate is movable in the vertical direction along the front opening, and the two horizontally movable transparent plates attached to the opening of the vertically movable transparent plate Since the plate can move left and right in a sliding door manner while closing the opening, if the operator inserts his hand into the two insertion holes formed in the two left and right transparent plates, the worker The hand can move freely up and down, left and right, and can move to any position in the work space. The state is maintained, and there is no gap in the front opening, so that the worker can work safely without inhaling toxic gas or bad odor from the work space.

  A vertically movable transparent plate is attached to one end of a rope suspended from above at both left and right ends, and the other end of the rope is attached to a balance weight via a pulley fixed above the vertically movable transparent plate, The balance weight may be configured to be suspended in a balanced state.

  In such a hand-arm insertion opening movable hood, the vertically movable transparent plate is attached to one end of a rope suspended from above, and the other end of this rope is attached to a balance weight via a pulley, and the balance weight is used for the balance. Since the transparent plate that can be moved up and down can be moved to an arbitrary position in the vertical direction, the transparent plate can be balanced and stopped at the moving position, and can be inserted into the insertion hole. If the operator inserts his / her hand and moves it up and down, he / she can easily move to a desired position and stand still while balancing with a balance weight.

  When an operator inserts both hands into the insertion hole formed in the left and right movable transparent plate and moves both hands in the vertical direction, the transparent plate capable of moving up and down according to the vertical movement is the balance weight. When the balance is moved in the vertical direction and both hands are moved in the left-right direction, the two left-right moving transparent plates may be moved in the left-right direction in accordance with the movement in the left-right direction.

  In such a hand arm insertion opening movable hood, by inserting both hands into the insertion hole and moving both hands up and down, it is possible to move both hands up and down and left and right while balancing, It is possible to move freely and perform processing operations without moving smoothly to any position in the work space without forming a gap.

  The gist of the invention is that the two horizontally moving transparent plates are attached to the window frame attached to the opening so as to be movable in the left-right direction in a sliding door manner.

  In such a hand-arm insertion opening movable hood, the two horizontally movable transparent plates are attached to the window frame of the opening portion of the transparent plate that can be moved up and down so as to be movable in the left-right direction in a sliding door manner. Can be easily moved to an arbitrary position in the left-right direction, and the processing operation can be performed smoothly.

  The two insertion holes are constituted by a cylindrical hole having a cylindrical part extending outward, and an open end of a rubber glove is attached in a close contact state to the cylindrical part of the cylindrical hole. Alternatively, the operator may insert a hand into a rubber glove attached to the cylindrical portion of the shape hole, put the hand into the work space, and perform a processing operation on the workpiece in the work space.

  In such a hand arm insertion opening movable hood, the insertion hole is constituted by a cylindrical hole having a cylindrical part, and an open end of a rubber glove is attached to the cylindrical part of the cylindrical hole, and an operator is attached to the rubber glove. Inserts a hand into the work space and performs a processing operation on the workpiece in the work space, so that there is no gap in the part where the operator inserts the hand. You can work safely without inhaling bad odors.

  The vertically movable transparent plate may be a transparent glass plate, and the left-right movable transparent plate may be a sliding door type transparent window glass.

  In such a hand-arm insertion opening movable hood, the vertically movable transparent plate is a transparent glass plate, and the left-right movable transparent plate is a sliding door type transparent window glass.

  According to the present invention, the front opening closing means for closing the opening on the front surface of the work space by the transparent plate moving in the vertical direction, and the position of the insertion hole for inserting the operator's hand provided in the front opening closing means are as follows. It has an insertion hole position moving means that can move in the left-right direction, so that the position of the insertion hole into which the operator's hand is inserted can be moved up, down, left, and right as desired by the operator while completely closing the front opening. It is possible to move freely.

  Further, since the front opening closing means includes weight reducing means for reducing the weight of the transparent plate to be closed, it is possible to work without being aware of the weight of the front opening closing means.

  The vertically movable transparent plate is movable in the vertical direction along the front opening, and the two horizontally movable transparent plates attached to the opening of the vertically movable transparent plate close the opening while sliding the door. Therefore, if the operator inserts his hand into the two cylindrical holes formed in the two left and right transparent plates, the operator can freely move his hand up, down, left and right. It can move to any position in the work space, and even if you move your hand up and down and left and right, there is no gap in the front opening due to the movement of the transparent plate that can move up and down and the transparent plate that can move left and right. Work can be performed safely without inhaling toxic gases or odors from the work space.

  Further, according to the present invention, the vertically movable transparent plate is attached to one end of a rope suspended from above, and the other end of the rope is attached to a balance weight via a pulley, and is stationary in a balanced state by the balance weight. Therefore, even if the transparent plate capable of moving up and down is moved to an arbitrary position in the vertical direction, the transparent plate can be balanced and stationary at the moving position, and an operator can enter the insertion hole. If a hand is inserted and moved up and down, it can be easily moved to an arbitrary position and kept stationary while balancing with a balance weight.

  Furthermore, according to the present invention, the two horizontally movable transparent plates are attached to the window frame of the opening of the vertically movable transparent plate so as to be movable in the left-right direction in a sliding door manner. The person can easily move the hand to any position in the left-right direction, and can smoothly perform the processing operation.

  According to the present invention, the insertion hole is constituted by a cylindrical hole having a cylindrical part, and an open end of a rubber glove is attached to the cylindrical part of the cylindrical hole, and an operator inserts a hand into the rubber glove. Since the operator puts his hand in the work space and performs the processing work on the workpiece in the work space, there is no gap in the part where the operator inserts his hand, and sucks in toxic gas or bad odor from the work space. And work safely.

It is a perspective view which shows the whole structure of the hand arm insertion opening movable hood concerning one Embodiment of this invention. It is a perspective view which shows the main body of the state which removed the glass plate which can be moved up and down from the arm-and-arm insertion opening movable hood shown in FIG. It is a front view of the hand-arm insertion opening movable hood shown in FIG. It is a front view which shows the glass plate which can be moved up and down which is used for the arm insertion opening movable hood shown in FIG. It is a perspective view which shows the cylindrical hole currently used for the hand arm insertion opening movable hood shown in FIG. It is a perspective view which shows the state which moved the glass plate which can be moved up and down upwards in the arm insertion opening movable hood shown in FIG. It is explanatory drawing explaining the up-and-down moving mechanism which makes the up-and-down movable glass plate movable to the up-down direction in the arm insertion opening movable hood shown in FIG. It is explanatory drawing which shows the state which inserted the hand into the rubber glove fitted in the cylindrical hole currently used for the hand arm insertion opening movable hood shown in FIG. It is a side view which shows the up-and-down moving mechanism of the glass plate which can move up and down of the arm insertion opening movable hood concerning other embodiment of this invention, and its stopper position.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an overall configuration of a hand-arm insertion opening movable hood according to an embodiment of the present invention. The hand arm insertion opening movable hood 1 of the present embodiment is sucked and exhausted from the upper back of the work space 11 described later, so that the work space 11 is maintained at a negative pressure, and the air inside the work space 11 directly flows into the work space. 11 It is comprised so that it may not leak outside.

  A hand-arm insertion opening movable hood 1 shown in FIG. 1 has a vertically long trapezoidal body 3 made of, for example, an aluminum frame, and a front opening 5 is formed on the front side of the body 3.

  The front opening 5 is formed of a transparent glass plate so that the internal work space 11 can be seen, and can be moved up and down as will be described later. The front opening is closed. In FIG. 1, as will be described later, the vertically movable glass plate 7 is in a position moved downward.

  A side opening 9 closed with a transparent glass plate is also formed on the side of the main body 3 so that the internal work space 11 can be seen from the side opening 9. A workpiece 17 (not shown) is placed on the work surface 11a at the bottom of the work space 11 (see, for example, FIG. 9). Moreover, the glass plate employ | adopted by the glass plate 7 which can be moved up and down may be colored (a vapor deposition is included) the whole surface or one part, or may be divided | segmented.

  The main body 3 in a state in which the vertically movable glass plate 7 is removed from the hand-arm insertion opening movable hood 1 shown in FIG. 1 has a front plate 13 in which a front opening 5 is formed as shown in FIG. Guide rail portions 13a and 13b are formed at the left and right ends of the front plate 13 for sliding the vertically movable glass plate 7 so as to be movable in the vertical direction. FIG. 3 shows a front view of the front plate 13 on which the guide rail portions 13a and 13b are formed. The guide rail portions 13a and 13b of the front plate 13 hold the left and right ends of the vertically movable glass plate 7 so that the vertically movable glass plate 7 can be slid in the vertical direction.

  FIG. 4 is a front view showing the vertically movable glass plate 7 in which the left and right ends are held slidably on the guide rail portions 13a and 13b of the front plate 13 so as to be movable in the vertical direction. As shown in the figure, the vertically movable glass plate 7 has a horizontally long oval opening 7a formed at substantially the center. As shown in the perspective view of the cylindrical hole in FIG. 5, a cylindrical hole 21 is attached to the opening 7a, for example, a window glass 19 fixedly attached with an adhesive. The window glass 19 is configured to be movable in the lateral direction by a window frame 15 in which rails are installed, like the guide rail portion 13. At this time, the window glass 19a, 19b and the window frame 15 are provided with rubber or resin packing, thereby increasing the density.

  FIG. 6 is a perspective view showing a state in which the vertically movable glass plate is moved upward in the hand arm insertion opening movable hood shown in FIG. 1. The window frame 15 is formed so that the horizontal direction is longer than the opening 7 a of the glass plate 7 that can move up and down, and a part of the glass plate 7 that can move up and down is exposed to the left and right and the center of the window frame 15. As will be described later, when two transparent window glasses are attached to the window frame 15 so as to be slidable laterally in a sliding door manner, the two window glasses are moved close to each other in the center. Alternatively, when it is pulled outward, there is no gap between the vertically movable glass plate 7 and the window glass. In addition, attachment of the window frame 15 with respect to the opening part 7a of the glass plate 7 which can be moved up and down is possible by various methods, such as adhesion | attachment, screwing, and fitting, for example, It does not specifically limit.

  The two transparent window glasses 19a and 19b fitted into the window frame 15 are respectively formed with cylindrical holes 21a and 21b. The two cylindrical holes 21a and 21b have a base portion of the window glass 19a, It attaches to 19b and the front-end | tip protrudes from this base. The two cylindrical holes 21 a and 21 b are inserted into the work space 11 by the operator through the cylindrical holes 21 a and 21 b, and the workpiece 17 placed on the work surface 11 a of the work space 11. Is for processing. Note that the window glasses 19a and 19b constitute a left-right movable transparent plate, and the cylindrical holes 21a and 21b constitute an insertion hole.

  More specifically, as shown in FIG. 8, a sleeve portion which is an open end portion of a long-sleeved rubber glove 23a, 23b is attached to each of the two cylindrical holes 21a, 21b. , 23b and the like are inserted into the work space 11 at the tip. The operator can insert the hand covered with the rubber gloves 23a and 23b into the work space 11 by inserting his / her hands from the sleeves to the tips of the rubber gloves 23a and 23b. . Thus, by inserting a hand into the rubber gloves 23a and 23b attached to the cylindrical holes 21a and 21b, putting the hand into the work space 11, and processing the workpiece 17 in the work space 11 by hand, A gap is not formed between the operator's hand and the front opening. These constitute the insertion hole position moving means.

  As shown in FIG. 6, when the two window glasses 19a and 19b are fitted into a window frame 15 attached to the opening 7a of the vertically movable glass plate 7, the window glasses 19a and 19b are shown in FIG. Is movable in the left-right direction along the window frame 15 and can open and close the opening 7a of the vertically movable glass plate 7, and the tubes formed in the window glasses 19a and 19b. The shape holes 21a and 21b also move in the left-right direction according to the left and right movement of the window glasses 19a and 19b, and the cylindrical holes 21a and 21b can move toward and away from each other by this movement.

  That is, as described with reference to FIG. 8, when an operator puts his / her hand into the rubber gloves 23 a and 23 b attached to the cylindrical holes 21 a and 21 b, the worker moves his / her hand in the left / right direction to approach or move away from each other. By doing so, the window glasses 19a, 19b can also move in the left-right direction in accordance with the movement in the left-right direction of the hand so that they can be moved closer to or away from each other. Yes.

  FIGS. 7A, 7B, and 7C are explanatory views showing a vertical movement mechanism that allows the vertical movable glass plate 7 to move in the vertical direction along the guide rail portions 13a and 13b of the front plate 13. FIG. It is. In this vertical movement mechanism, pulleys 31a and 31b are respectively attached to the upper portions of the guide rail portions 13a and 13b of the front plate 13, and ropes 33a and 33b are respectively suspended on the pulleys 31a and 31b. Here, the rope includes a wire, a string, a wire, and the like. In FIG. 7, the window frame 15 and the window glasses 19a and 19b attached to the opening 7a of the vertically movable glass plate 7 are not shown.

  One end of each of the ropes 33a and 33b is fixedly attached below both ends of the vertically movable glass plate 7, and balance weights 35a and 35b are attached to the other ends. The balance weights 35a and 35b are configured to have a weight that can be balanced with the vertically movable glass plate 7. In the state of FIG. 7A, the vertically movable glass plate 7 and the balance weight 35 are provided at both ends of the rope 33. Is suspended, that is, hung in a suspended state, and is stationary while being balanced.

  FIG. 7 (b) shows a case where the vertically movable glass plate 7 is moved upward, and the vertically movable glass plate 7 balances with the balance weights 35a and 35b even in the state where it is moved upward. It can come to rest at this upper position. Further, FIG. 7 (c) shows a case where the vertically movable glass plate 7 is moved downward, and the vertically movable glass plate 7 is balanced with the balance weights 35a and 35b even in the state where it is moved downward. It can come to rest at this lower position.

  In the present embodiment, as the weight reducing means, the weight of the vertically movable glass plate 7 is reduced by the balance weight 35. However, for example, it is replaced with a spring type, air type, or hydraulic type open / close cylinder. Needless to say, the weight of the vertically movable glass plate 7 may be reduced.

  In addition, as shown in FIG. 8, the vertical movement of the vertically movable glass plate 7 is carried out by inserting the hand inserted by the operator into the cylindrical holes 21a and 21b of the window glasses 19a and 19b via the rubber gloves 23a and 23b. By moving up and down, the vertically movable glass plate 7 moves up and down through the window glasses 19a and 19b according to the vertical movement of the hand, and when the vertical movement of the hand is stopped, it can be moved up and down at this stop position. The glass plate 7 is in balance with the balance weights 35a and 35b and is stationary.

  In the arm insertion opening movable hood 1 configured as described above, in the state shown in FIG. 1, the two cylindrical holes 21a and 21b of the window glasses 19a and 19b attached to the vertically movable glass plate 7 are: In the left-right direction, the two cylindrical holes 21a and 21b are located at a position close to the work surface 11a in the vertical direction. When the operator inserts his / her hand through the two cylindrical holes 21a and 21b as shown in FIG. 11, the workpiece 17 on the work surface 11a can be processed close by hand. ing.

  As shown in FIG. 1, two cylindrical holes 21a and 21b are in a lower position, whereas FIG. 6 shows a state in which two cylindrical holes 21a and 21b are in an upper position. Yes. As described above, the two cylindrical holes 21a and 21b are moved upward by moving the hand inserted by the operator through the rubber gloves 23a and 23b into the two cylindrical holes 21a and 21b. As shown in FIG. 6, the upper position is moved and is stationary at the upper position due to the balance by the balance weights 35 a and 35 b.

  In addition, when the operator's hand inserted in the two cylindrical holes 21a and 21b is moved upward, such an upward movement is a window glass in which the cylindrical holes 21a and 21b are formed by this movement. 19a, 19b is moved upward, and the window plate 19a, 19b is moved upward along the guide rail portions 13a, 13b by the upward movement of the window glasses 19a, 19b. is there.

  As described above, in the state where the two cylindrical holes 21a and 21b are moved upward, the operator's hand inserted through the cylindrical holes 21a and 21b is not shown, but the object positioned above the work space 11 is not shown. It is effective for processing processed materials.

  FIG. 6 shows a state in which the two cylindrical holes 21a and 21b are brought close to each other when the two cylindrical holes 21a and 21b are in the lower position as shown in FIG. The two cylindrical holes 21a and 21b are brought close to each other by bringing the hands inserted by the operator close to the two cylindrical holes 21a and 21b via the rubber gloves 23a and 23b. The window glass 19a, 19b in which the holes 21a, 21b are formed moves by sliding along the window frame 15 from side to side.

  By bringing the two cylindrical holes 21a and 21b close to each other in this way, the operator's hand can be closer to the workpiece 17 and complex processing and the like can be accurately performed on the workpiece 17. become.

  As shown in FIG. 6, even when the two cylindrical holes 21a and 21b are moved upward, it is of course possible to bring the two cylindrical holes 21a and 21b closer to each other as shown in FIG. 1 and FIG. 6, and the vertically movable glass plate 7 can move up and down along the guide rail portions 13 a and 13 b, and the window glasses 19 a and 19 b move left and right along the window frame 15. The cylindrical holes 21a and 21b are moved to arbitrary vertical and horizontal positions within the movable range, and the operator inserts a hand into the work space 11 at any vertical and horizontal positions to process the workpiece in an optimal state. The work space 11 is completely closed by the vertically movable glass plate 7 and the window glasses 19a and 19b, and a gap communicating with the outside, etc. Not formed, thus including toxic gases and odors or bacteria are prevented from flowing back into the chamber, such as one and laboratory workers from the gap.

  As described above, according to the present embodiment, the front opening closing means for closing the opening on the front surface of the work space with the transparent plate moving in the vertical direction and the operator's hand provided in the front opening closing means are inserted. The insertion hole position moving means that enables the position of the insertion hole to be moved in the left-right direction is provided, so that the position of the insertion hole into which the operator's hand has been inserted is determined while the front opening is completely closed. It is possible to move freely up, down, left and right as intended.

  FIG. 9 is a side view showing a hand arm insertion opening movable hood according to another embodiment of the present invention. The hand arm insertion opening movable hood 100 shown in the figure is shown in FIG. 7 while the lower part of the main body 3 is supported by a rod-like leg 41 in the hand arm insertion opening movable hood 1 shown in FIGS. The balance weight 35 is provided on the rear side of the main body 3 as indicated by reference numeral 135 in FIG.

  The balance weight 135 is attached to the rear end of a rope 133 hung on pulleys 131a and 131b provided at the front and rear corners of the upper portion of the main body 3, and the other end of the rope 133 extends to the front side of the main body 3. The point that is attached to the vertically movable glass plate 7 is different from the point that the stopper 137 is attached to the front and rear, and the other basic configuration and operation are the hand-arm insertion openings described in FIGS. The same components as those of the movable hood 1 are denoted by the same reference numerals, and the description thereof is omitted.

  These stoppers 137 are on the path of the vertically movable glass plate 7 and restrict its movement. For example, the stopper 137a restricts the upper end of the vertically movable glass plate 7 and limits the opening amount. The stopper 137b restricts the upper end of the balance weight 35 and restricts the lowering position of the vertically movable glass plate 7. By these, the movement distance of the up-down direction of the glass plate 7 which can be moved up and down, ie, the opening amount, can be limited.

  Further, the stopper 137a can be moved out of the orbit of the vertically movable glass plate 7, thereby pulling the vertically movable glass plate 7 upward so that the front opening of the main body 3 is almost fully opened, and the work surface 11a. It is possible to easily install a relatively large workpiece 17 and various devices. Also, the stopper 137a is provided in two upper and lower stages, and the lower stopper 137a prevents the lower end of the vertically movable glass plate 7 from rising too much, so that the closed state is released by the operator's work, that is, the vertically movable glass. Opening at the lower end of the plate 7 may be prevented in advance. The stopper 137b can also be moved, but is fixed in the present embodiment.

  The embodiments of the present invention have been described with reference to the embodiments. However, the embodiments are merely examples, and the scope of the invention described in the claims can be variously changed without departing from the scope of the invention. It can be done.

DESCRIPTION OF SYMBOLS 1 Draft chamber 3 Main body 5 Front opening 7 Glass plate 7a which can be moved up and down Opening part 9 Side part opening part 11 Working space 11a Working surface 13 Front board 13a, 13b Guide rail part 15 Window frame 17 To-be-processed object 19a, 19b Window glass 21a 21b Tubular holes 23a, 23b Rubber gloves 25 Hands 31a, 31b Pulleys 33a, 33b Rope 35a, 35b Balance weight 41 Legs 131a, 131b Pulley 133 Rope 135 Balance weight 137 Stopper

Claims (4)

Front opening closing means for closing the front opening by a transparent plate that moves while maintaining the front opening of the front of the work space in the vertical direction;
An insertion hole position moving means capable of moving independently in the left-right direction while maintaining the closed state of the position of the insertion hole for inserting the operator's hand provided in the front opening closing means;
A hand hood insertion opening movable hood characterized by comprising:   The hand arm insertion opening movable hood according to claim 1, wherein the transparent plate of the front opening closing means has a lower end movable beyond a lower end of the front opening downward.   The hand arm insertion opening movable hood according to claim 1 or 2, wherein the front opening closing means includes weight reducing means for reducing the weight of the transparent plate to be closed. The insertion hole position moving means includes a horizontally long opening formed in the front opening closing means, and a plate member that can be independently moved in the left-right direction in a sliding door manner while maintaining the opening closed. The hand arm insertion opening movable hood according to any one of claims 1 to 3 , further comprising an insertion hole for inserting an operator's hand provided in the plate member.

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