JPH0474441B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a donning and doffing device for making it easy to put on and take off gloves.

[Conventional technology]

Conventionally, for example, vinyl or elastomer (rubber)
Gloves made of materials, etc., are put on and taken off by hand, but the tighter they fit the hands, the more they stick to the hands due to skin moisture, making it extremely difficult to put on and take off.

Furthermore, when removing gloves from your hands after use, you may touch the surfaces of the gloves with your bare hands that have chemical solutions, etc. Furthermore, if there are small tears in the gloves, if you do not know this and wear them, ,
There was a problem that wearing gloves was not effective and was considered undesirable from a health and safety perspective.

[Problem to be solved by the invention]

In view of the above-mentioned problems, the present invention makes it possible to mechanically perform the work of putting on and taking off gloves, which had conventionally been done with bare hands, easily and quickly and without contact with bare hands, and also detects tears in the gloves to ensure safety. This was done with the goal of improving gender.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a glove insertion portion formed with an opening edge that can be closely engaged with the peripheral edge of the fitting opening of the glove reinforced with a reinforcing ring, and a suction device for the glove insertion portion. A vacuum pump connected by piping, an air inflow pipe that allows air to flow into the glove insertion part, a flow control valve that regulates the amount of air inflow, and a supply of compressed air to the glove insertion part. The present invention provides a glove donning and doffing device characterized by comprising a compressed air supply means for automatically putting on and taking off gloves. In this glove insertion/removal device, it is preferable that a pair of left and right glove insertion portions be provided, each of which is connected to an independent vacuum pump, and that the glove insertion portion is operated by internal pressure of the glove insertion portion. a timer relay that closes the circuit for a predetermined count time from the time when the low pressure side contact of the pressure switch closes, and a suction that is energized through the timer relay to close the gap between the glove insertion part and the vacuum pump. By adding a configuration comprising a force cutoff solenoid valve and an alarm unit that is activated when both the high pressure side contact of the pressure switch and the timer relay are closed, it is possible to detect tears in the gloves. It is something.

[Effect]

First, when donning the glove, insert the glove into the glove insertion part, engage the opening edge of the glove with the opening edge of the glove insertion part, and use the vacuum pump to suction the inside of the glove insertion part. Inflate the glove itself. Here, the reason why the peripheral part of the glove fitting opening is reinforced with a reinforcing ring is to prevent the entire glove from being sucked into the glove insertion part during the above-mentioned suction, and to prevent the entire glove from being sucked into the glove insertion part during the above-mentioned suction. This is because the peripheral edge of the fitting opening is brought into close contact with the opening edge due to the differential pressure between the inside and outside of the glove. The degree of expansion of the glove is
By adjusting the flow rate of the air flowing into the glove insertion part from the air inflow pipe by suction using the flow rate control valve, it can be appropriately set according to the strength of the glove. Then, by inserting the hand into the swollen glove and then supplying compressed air from the compressed air supply means into the glove insertion part, the glove comes into close contact with the hand and the wearing of the glove is completed.

Next, when removing the hand from the hand, put the gloved hand into the glove insertion part, inflate the glove by suctioning the glove insertion part, and remove the hand, as in the case of putting on the glove. .

This donning/detaching device has a pair of left and right glove insertion portions, so that gloves can be put on and taken off with both hands at the same time. By connecting independent vacuum pumps to both glove insertion sections, it is possible to prevent the suction forces of both glove insertion sections from interfering with each other.

Furthermore, in the same way as described above, the donning/detaching device equipped with a glove tear detection mechanism first inflates the glove by sucking the inside of the glove insertion part with a vacuum pump. When the pressure inside the glove insertion part drops to a predetermined value, the pressure switch senses this and closes its low-pressure side contact, the timer relay closes at the same time, and the solenoid valve shuts off the connection between the glove insertion part and the vacuum pump. . At this time, the high pressure side contact of the pressure switch is open, and if the predetermined count time elapses in this state, the timer relay will also open.
After that, even if the pressure inside the glove insertion part eventually increases and the high-pressure side contact closes, the alarm part will not be activated. However, if there is a tear in the glove, air flows into the glove insertion part through the tear, causing the pressure inside the glove insertion part to rapidly rise (approaching the atmospheric pressure level), causing Before the timer relay opens due to the elapse of the count time, the pressure switch closes its high voltage side contact, so the alarm section is energized and issues an alarm. In this case, it is effective to provide a self-energizing means so that the alarm section continues to be driven even after the timer relay opens.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of the structure of a glove suitable for putting on and taking off using the putting on and taking off device of this embodiment, and numeral 1 indicates a part of the glove made of vinyl, elastomer, or the like. 3 is a reinforcing ring made of PTFE or lightweight resin material, including an inner ring 3a with a simple circular cross section in the radial direction;
The wire diameter is larger than that of the inner ring 3a, and the radial cross section is approximately C.
It is composed of a letter-shaped outer ring 3b. This reinforcing ring 3 is fixed to the circumferential edge 2 of the fitting opening of the glove 1 as shown in FIGS. 2 and 3, that is, by fitting the inner ring 3a inside the circumferential edge 2 of the fitting opening, The circumferential edge 2 of the fitting opening is wrapped around the inner ring 3a, and the outer ring 3b is fitted to the outer side of the inner ring 3a to secure the fitting, and can be used in general vinyl gloves and the like. Note that the reinforcing ring 3 is not limited to the illustrated example, and may be, for example, one that is integrally embedded or bonded to the peripheral edge portion 2 of the fitting opening.

Next, FIG. 4 shows the appearance of an embodiment of the glove attachment/detachment device 10, in which 11 is a body;
Reference numerals 12 and 12 denote a pair of left and right glove insertion portions opened at the upper front surface of the body 11, 14 and 14 a vacuum pump connected to each glove insertion portion 12 and 12 by piping independently, and 15 and 15 a power source. A switch 16 is a foot pedal that opens and closes a foot switch (not shown). Opening edge 13 at the front end of each glove insertion part 12
As shown in FIG. 5, when the glove 1 described above is inserted into the glove insertion part 12, the
It is adapted to closely engage with the peripheral edge portion 2 of the fitting opening reinforced by the reinforcing ring 3. In addition, as shown in FIG. 6, each glove insertion portion 12 includes a vacuum pump 1.
In addition to the suction pipe 17 extending to the glove insertion part 12, an air inflow pipe 18 that allows the air to flow into the glove insertion part 12 during suction by the vacuum pump 14;
A compressed air supply pipe 20 extending from a compressed air supply source 22 is connected, and a flow control valve 19 for controlling the amount of air flowing into the glove insertion part 12 is located halfway through the air inflow pipe 18. Furthermore, compressed air supply solenoid valves 21 are provided in the middle of the compressed air supply piping 20, respectively.

In the above-mentioned attachment/detachment device, when the power switch 15 is turned on, the vacuum pumps 14, 14 are driven, and the insides of the glove insertion parts 12, 12 are brought into a suction state.
Further, the compressed air supply solenoid valves 21, 21 normally close the compressed air supply pipes 20, 20,
Depress the foot pedal 16 and turn the foot switch.
By turning ON, it becomes an open state, and compressed air from the compressed air supply source 22 is supplied to the glove insertion part 12,
12.

Therefore, for example, when putting on the glove 1 on the hand, first turn on the power switch 15 to drive the vacuum pumps 14, 14, and thereby apply the air to the glove insertion parts 12, 12, which are in the suction state. Set gloves 1. At this time, each glove insertion portion 12
The pressure in the space S1 between the inner wall of the glove 1 and the glove 1 decreases as the opening edge 2 of the glove 1 comes into close contact with the opening edge of the glove insertion part 12. Due to the pressure difference with the internal space S2, the fifth
As shown by the dashed line in the figure, the glove 1 inflates.
The outside air flows into the space S1 of the glove insertion part 12, which is sucked and has a low pressure, through the air inflow pipe 18, and by adjusting the throttle amount of the flow control valve 19, the pressure of the space S1 is reduced. The internal pressure, in other words, the amount of expansion of the glove 1 can be set appropriately. Furthermore, the opening edge 2 of the glove 1 that is closely engaged with the opening edge 13 of the glove insertion portion 12 is reinforced with a reinforcing ring 3, so that the entire glove 1 is completely inserted into the glove insertion portion. It functions as a stopper to prevent the gas from being sucked into the space S1, and furthermore, the suction causes a self-sealing action to occur between the fitting opening peripheral edge 2 and the opening edge 13 into the space S1. Completely blocks air from leaking.

Next, the user puts both hands into the gloves 1, 1 which are inflated within the glove insertion parts 12, 12, and depresses the foot pedal 16. The compressed air supply solenoid valves 21 , 21 are energized by the foot switch to open the hitherto blocked pipes 20 , 20 , thereby allowing the compressed air from the compressed air supply source 22 to flow into the glove insertion portion 12 . , 12, and the pressure in the space S1 rises, causing the glove 1, which had been inflated, to contract and come into close contact with the hand. The compressed air also releases the suction state (close engagement state) of the opening edge 2 of the glove 1 against the opening edge 13 of the glove insertion part 12,
Wearing of gloves 1 is completed.

Also, when removing gloves 1 from your hands,
While wearing the gloves, insert both hands into the glove insertion parts 12, 12 which are in the suction state. Then, the opening of each glove insertion part 12 is closed by engagement with the fitting opening peripheral part 2 of the glove 1, and the glove 1 is inflated as in the case of wearing described above. Therefore, a gap is created between the glove 1 and the skin of the hand, and the hand can be pulled out of the glove 1 without any resistance.

As described above, according to this embodiment, it is possible to put on and take off the glove 1 without any effort and without touching the surface of the glove 1 with bare hands. Since the glove insertion portions 12 are provided in pairs on the left and right, the gloves 1 can be put on and taken off with both hands at the same time. Also,
If the close contact between the opening edge 2 of the glove 1 and the opening edge 13 of the glove insertion part 12 is incomplete,
Due to air leakage into the glove insertion part 12, the glove 1
may not inflate sufficiently, but the left and right glove insertion sections 1
2 and 12 are suctioned by independent vacuum pumps 14 and 14, respectively, and are configured so that there is no mutual interference of suction forces. Therefore, for example, the above-mentioned atmospheric leakage occurs in one glove insertion part 12. Even if this occurs, the attraction force on the other side will not be affected at all. It goes without saying that if the peripheral edge 2 of the fitting opening is moved a little to correct the state of engagement with the opening edge 13, the leakage of the atmosphere can be easily eliminated.

Next, FIG. 7 schematically shows a part of the piping as another embodiment of the glove donning/detaching device according to the present invention. This embodiment uses the attachment/detachment device in the previous embodiment for the purpose of preventing someone from wearing the glove 1 on their hand without realizing it in the event that a part of the glove 1 is damaged. A tear detection mechanism is added, and the electrical circuit diagram of the detection mechanism is shown in FIG.

That is, 23 extends from the glove insertion part 12 to the vacuum pump 14 and is provided in the suction piping 17,
A pressure sensor section 24 that operates by sensing the pressure inside the glove insertion section 12, and a low pressure side contact a1 that works in conjunction with the pressure sensor section 24 and becomes conductive when the pressure inside the glove insertion section 12 drops to a predetermined low pressure value. and a high-pressure side contact a2 that becomes conductive when the pressure increases toward the atmospheric pressure level and reaches a predetermined high pressure value. Further, 25 is the suction pipe 1
This is a suction force cutoff electromagnetic valve that simultaneously opens and closes between the connection part of the pressure sensor 24 at 7 and the vacuum pump 14 and the air inflow pipe 18.

In Fig. 8, b1 and b2 are foot pedals 1
The reset switch 26, which opens when the switch 6 (see FIG. 4) is depressed, is energized via the high voltage side contact a1 and the reset switch b1, and the reset switch 26 opens when the reset switch 26 is depressed.
It is a self-holding relay with 1, c2, and c3.
A timer relay 27 is energized at the same timing as the self-holding relay 26 is energized, and has time-limited contacts d1 and d2 that are closed only for a predetermined count time. The solenoid of the electromagnetic valve 25 is a relay 26.
The current is applied through the contact c2 of the timer relay 27 and the time limit contact d1 of the timer relay 27. A self-holding relay 28 is energized via a contact c3 of the relay 26, a high voltage side contact a2 of the pressure switch 23, and a time limit contact d2 of the timer relay 27, and has a contact e1. 2
Reference numeral 9 denotes an alarm buzzer, which is driven by being energized via the contact e1 and reset switch b2.

The glove tear detection operation by the donning/detaching device having the above configuration will be explained with reference to FIGS. 7 to 9. In the standby state, the reset switch b
1, b2 is closed, self-holding relay 26, 2
8 and each contact c1, c2 of the timer relay 27,
c3, e1, d1, and d2 are also all open. Furthermore, although the inside of the glove insertion part 12 is suctioned by the vacuum pump 14, the pressure is relatively close to the atmospheric pressure level unless the gloves 1 are set, so the low pressure side contact a1 of the pressure switch 23 is also opened. ing.

Here, when the glove 1 is set in the glove insertion part 12 which is in the suction state as shown in FIG. As the pressure decreases and reaches a predetermined low pressure value, the pressure switch 23
Due to the operation of the pressure sensor section 24, its low pressure side contact a1 is closed (time t1). Therefore, the self-holding relay 26 is energized and energized, and its contacts c1, c2, and c3 are closed to shift to the self-holding state, and at the same time, the timer relay 27 is also energized and starts counting down, and its contacts c1, c2, and c3 are closed. d1 and d2 are closed. Then, contact c of self-holding relay 26
2. The electromagnetic valve 25 is energized through the contact d1 of the timer relay 27 and is closed, thereby blocking suction from the inside of the glove insertion part 12 by the vacuum pump 14 and blocking air from flowing into the glove insertion part 12.

By closing the solenoid valve 25, the inside of the glove insertion part 12 becomes airtight, but if there is a damaged part in the glove 1 set in the glove insertion part 12, air may flow in from the outside through the damaged part. Glove insertion part 12
The pressure inside rises rapidly towards atmospheric pressure. Therefore, the low pressure side contact a1 of the pressure switch 23 eventually opens (time t2), and when the pressure reaches a predetermined high pressure value, the high pressure side contact a2 closes (time t3). Here, even if the low voltage side contact a1 is turned off, the self-holding relay 26 is in a self-energized state by its contact c1, so
Contact c3 of the relay 26, high pressure side contact a2 of the pressure switch 23, and contact d2 of the timer relay 27
The alarm buzzer 29 is energized via the alarm buzzer 29 and emits an alarm sound.

The timer relay 27 automatically shifts to a demagnetized state when a predetermined count time T has elapsed, and its contacts d1 and d2 open (time t4). Therefore, the electromagnetic valve 25 is cut off, the suction pipe 17 and the air inflow pipe 18 are opened, and the glove insertion part 12 is opened.
Since the internal pressure is decreasing again, the high pressure side contact a2 of the pressure switch 23 will also open soon (time t5). Therefore, at time t4 when contact d2 of timer relay 27 opens, alarm buzzer 29 stops driving as shown by the broken line in FIG. 9, but according to this embodiment, at time t3
At the same time, the alarm buzzer 29 is energized through the contact c3 of the self-holding relay 26, the high-voltage side contact a2 of the pressure switch 23, and the contact d2 of the timer relay 27, and at the same time, the other self-holding relay 28 is energized to close its contact e1. , to shift to the self-energized state, the alarm buzzer 2 is activated even after the time t4 when the contact d2 of the timer relay 27 opens and the time t5 when the high voltage side contact a2 of the pressure switch 23 opens.
9 remains energized and continues to emit the alarm sound. Then, by depressing the foot pedal and opening reset switches b1 and b2, self-holding relays 26 and 28 are reset, and alarm buzzer 29 stops driving (time t6). Incidentally, when the foot pedal is depressed, a foot switch (not shown) is turned on at the same time, and the compressed air supply source 22 described in the previous embodiment shown in FIGS. 4 to 6 is turned on.
Compressed air is blown out to the glove insertion part 12, and the glove 1 is taken out.

In addition, in the above detection operation, the glove insertion portion 12
If there is no damage to the glove 1 set at
When the contacts d1 and d2 of the timer relay 27 and the solenoid valve 25 are closed, the glove insertion part 12 is closed.
Because there is no air leakage inside, a low pressure state is maintained. Therefore, the high pressure side contact a2 of the pressure switch 23
remains open, and eventually at time t4 when a predetermined count time T has elapsed, each contact of the timer relay 27 opens, so the alarm buzzer 29 is not driven. In this case, since the glove 1 is in an inflated state inside the glove insertion part 12, if the above detection result indicates that the alarm buzzer 29 is not activated and there is no abnormality, insert your hand into the glove 1 and proceed as described above. By depressing the foot pedal to blow out compressed air into the glove insertion portion 12, the glove 1 is immediately put on.

As described above, according to this embodiment, in addition to the effects of the embodiments shown in FIGS. 4 to 6 described above,
Since the presence or absence of a tear in the glove 1 can be detected prior to putting on the glove 1, it is possible to prevent damage if the glove 1 is put on without knowing the existence of the tear.

Note that the tear detection mechanism is not limited to the illustrated example; for example, the relay may be of a non-contact type, or an alarm lamp may be used in addition to an alarm buzzer as an alarm unit, or an indicator may be used when gloves can be used. It is optional to provide. Also,
In this embodiment, both the suction pipe 17 and the air inflow pipe 18 are opened and closed by the suction force cutoff solenoid valve 25, but it is also possible to open and close only the suction pipe 17. In this case, the count time T of the timer relay 27 is set according to the throttle amount of the flow control valve 19 provided in the air inflow pipe 18.

〔Effect of the invention〕

As described above, according to the present invention, the following effects can be achieved.

(i) Gloves made of vinyl or elastomer can be put on and taken off easily and quickly;
For example, in factories, it is possible to create a line that connects work that requires the use of gloves with work that does not require the use of gloves.

(ii) Since it is easy to put on and take off thin gloves or long gloves that are in close contact with the skin of the hands, it is useful in the precision machinery industry, electronic engineering, food industry, medicine, etc. where handling with bare hands is disliked.

(iii) Since the glove can be put on and taken off without touching the surface of the glove with bare hands, it is extremely effective in terms of safety and health when handling substances that are harmful to the human body and the skin of the hands, such as drugs and poisonous substances.

(iv) The glove tear detection mechanism makes it possible to detect tears in the gloves before putting them on, which eliminates the need to put on the gloves without knowing that they are torn, so that the effects of using gloves can be reliably obtained.

[Brief explanation of drawings]

FIG. 1 is an isolated partial sectional view showing a glove to be put on and taken off by the glove donning/detaching device according to the present invention, FIG. 2 is an enlarged partial sectional perspective view, and FIG.
4 is an external view showing an embodiment of the glove attachment/detaching device according to the present invention; FIG. 5 is a sectional view of the glove insertion part with gloves set;
FIG. 6 is a schematic structural explanatory diagram, FIG. 7 is a partial piping diagram showing another embodiment of the glove donning/detaching device according to the present invention, FIG. 8 is an electric circuit diagram, and FIG.
The figure is also a time chart of the operation. DESCRIPTION OF SYMBOLS 1... Gloves, 2... Fitting opening periphery, 3... Reinforcement ring, 10... Detachable device, 12... Glove insertion part, 1
3... Opening edge, 14... Vacuum pump, 1
7...Piping for suction, 18...Piping for atmospheric inflow, 1
9...Flow control valve, 20...Piping for compressed air supply, 21...Solenoid valve for compressed air supply, 22...Compressed air supply source, 23...Pressure switch, 25...
Attraction force cutoff solenoid valve, 26, 28...Self-holding relay, 27...Timer relay, 29...Alarm buzzer, a1...Low pressure side contact, a2...High pressure side contact.

Claims (1)

[Scope of Claims] 1. A glove insertion portion formed with an opening edge that can be closely engaged with the peripheral edge of the glove fitting opening reinforced with a reinforcing ring, and a glove insertion portion connected to the glove insertion portion with a suction pipe. a vacuum pump, an air inflow pipe that allows air to flow into the glove insertion part, a flow control valve that regulates the amount of air inflow, and a compressed air supply that supplies compressed air to the glove insertion part. A glove attachment/detachment device comprising: means. 2. The glove donning/detaching device according to claim 1, wherein the glove insertion portions are provided in pairs on the left and right, and each pair is connected to an independent vacuum pump. 3. According to claim 1 or 2, there is provided a pressure switch which is operated by a decrease in the internal pressure of the glove insertion part, a timer relay which closes a circuit for a predetermined count time from the time when a low pressure side contact of the pressure switch is closed; a suction force cutoff solenoid valve that is energized via a timer relay and closes off between the glove insertion part and the vacuum pump; and an alarm unit that is activated when both the high pressure side contact of the pressure switch and the timer relay are closed. A glove attachment/detachment device comprising: