Antistatic clothes with removable elastic tape
Technical field
The present invention relates to the antistatic overcoat, more particularly, relate to a kind of antistatic (Electrostatic Discharge is called for short ESD) clothes having excellence and unfailing performance aspect the antistatic pollution.
Background technology
Antistatic clothing is generally used for the electronic equipment manufacturing industry, in order to eliminate from operating personnel's static with it.For antistatic clothing, importantly, but its ground connection preferably, during with convenient antistatic clothing ground connection, can drain produced by human motion or inner clothes on transmit because of electrostatic induction and float or be fixed on static on the antistatic clothing.But the electrostatic discharged passage on the antistatic clothing can be realized by the earth point that is arranged on some point on the work clothes or the zone, and is disclosed such as US Patent No. 5548469; Perhaps realize by the cuff (sleeve collar) of antistatic clothing, disclosed such as PCT application No.PCT/MY2009/000061 and WO2009139617.
Japanese patent application JP 2000178810A is at figure A(1) representative diagram in antistatic clothes with conductive fiber are disclosed, this conductive fiber contacts with the human body wrist under (elastic tape) pressure-acting.
Yet, when elastic tape owing to routine use, regularly washing or process such as heat oven dry etc. in because of continuously elongated " distortion " when relax, cause the discontinuous disconnection or the inefficacy that electrically contact because of cuff to need whole work clothes of replacing.
US Patent No. 4596053 is at figure A(2) representative diagram in the conductive ring that discloses around wrist how to use securing member (metal clip) to be attached to the cuff place of work clothes.
But, if " forgetting ", the workman clamps this metal clip, the health earthed system will break down.
US Patent No. 4868710 figure A(3) representative diagram in a kind of work clothes is disclosed, the wrist strap (18) that wherein conducts electricity is sewn on the cuff (12) of work clothes.Shown in Figure 5, wrist strap (08) is with clip 32 and 34, and it can be tied wrist strap (18) tight on the human body wrist.
But, if the workman " forgets " clip being clipped together, the health earthed system will break down.
A typical dress is also passed through the antistatic clothing of cuff ground connection, and its cuff closely and cosily encases the human body wrist by the elastic tape of inseam.Figure 1 shows that in the PCT application before this application people this technology (application number PCT/MY2008/000048) that adopts when antistatic clothing made improvements.
Except guarantee to obtain the good contact between the sleeve of wearer's wrist and work clothes, comfortable and close-fitting cuff design can also guarantee that the external contaminant that prevents any health from sleeve or operator or underwear falls into the electronic assemblies district.
, use the work clothes with the cuff of elastic tape of this routine also to have some defectives.Because the India rubber circle is to be sewn in the cuff so that cuff has elasticity, these rubber rings can wear out lax with the passing of time.This be because at routine use, regularly do not stop in the washing process to stretch and wear off repeatedly stretching in the work clothes process, elastic rubber ring will produce distortion and lax with the passing of time.When this situation occurring, work clothes and wearer electrically contact no longer valid maintenance, especially in relative humidity relatively in the manufacturing environment of drying.Because the discontinuous of charge discharge passage destroys, and will cause antistatic protection unreliable.In addition, when cuff becomes lax, the pollutant on underwear or the person might drop out, and pollutes the electronic assemblies district.
When work clothes after relatively thick people wears repeatedly by wrist, by the thinner people's dress of wrist, another problem can occur again.Elastic tape can excessively be stretched by the former.In addition, wearing the size that the people of small size work clothes may wrist also has very big-difference, and this is being to distribute for operating personnel in the labour-intensive electronics manufacturing to cause the logistical problems do not expected in the antistatic clothing process of suitable dimension just.
The key of this problem is not know when the sleeve contact can be broken down.Because any moment in process of production can appear in such fault, thereby so that the design of work at present clothes is very unreliable.And at work clothes the operating cost that the antistatic protection continuous monitor system will further increase the electronic assemblies industry of dog-eat-dog and cost sensitivity significantly is set.
To those skilled in the art, an apparent solution is to seek a kind of more durable or the better elastic tape of elasticity.But this solution was only suitable in the life-span that prolongs elastic tape, rather than the effective solution that addresses this problem.The variable problem that occurs that lost efficacy still can exist, and especially reaches xerodermatic operating personnel or wearer in the environment of relative humidity drying.
Therefore, thirst for seeking in the industry a kind of more effective and feasible solution, it adopts more cost effective means can guarantee the complete reliable of ground connection simultaneously.Therefore need to further study to provide more reliable and practicable solution.
Other purposes of the present invention are embodied in specification full text.
Summary of the invention
The invention provides a kind of removable elastic wristband, it can easily be attached to by means of a pair of attachment device on the sleeve of work clothes or remove from the sleeve of work clothes.The preferred a pair of nylon sticking belt of this attachment device (Velco tape).Its objective is the durability and the warranty that prolong anti-static clothing, to obtain economic well-being of workers and staff and commercial appeal.
This removable elastic wristband can attached in various ways or is looped around on the sleeve, such as by using nylon sticking belt, snap-fastener, standard button or slide fastener class to fasten thing etc.Most preferred mode is to adopt nylon sticking belt.
In the first embodiment of the present invention, a pair of nylon sticking belt is sewn on the outside of work clothes sleeve by this way: provide in to the interval between the nylon sticking belt at this and can hold elastic wristband and be looped around space on the sleeve.Folded to turning up when sleeve, this suitably aligns to nylon sticking belt and gathers, and consists of a pocket so that elastic tape is encapsulated in wherein, thereby forms with removable elasticity sleeve.
As an alternative, in the second embodiment of the present invention, additional a slice flanging (flap) is sewn on the sleeve by this way: so that form a pocket that can encapsulate elastic tape.The elastic rubber ring of various sizes can easily place this pocket and easily and simply be sealed by nylon sticking belt like this.This simple design has guaranteed that also rubber ring can easily be changed when needed, has exempted the needs of changing whole work clothes, thereby has obtained considerable cost savings in daily practicality.
The present invention obtains a kind of automatically anti-inefficacy compliant systems that is easy to manage.In case the workman has selected the elastic tape of just size, just need not it is done further or special indication.The workman only need be mounted on the work clothes and use, and is so simple.This solution need in the prior art workman's health is carried out the problem of more monitorings and control to the earthed system on ground, and simplified the antistatic control procedure.The present invention is particularly useful for the labour-intensive assembly manipulation in the general electronics manufacturing.
Description of drawings
Various advantage of the present invention, various aspects and character of innovation will describe in detail in following description and accompanying drawing.In the accompanying drawing, same Reference numeral is used for representing corresponding parts in each width of cloth accompanying drawing.
Figure 1 shows that the partial view of the hand of the anti-static clothing that is installed with in the prior art;
Fig. 2 is the schematic diagram with the anti-static clothing of interchangeable elastic tape according to first embodiment of the invention, shown in Fig. 2 a to 2c;
Fig. 3 is the schematic diagram with the anti-static clothing of interchangeable elastic tape according to second embodiment of the invention, shown in Fig. 3 a to 3c;
Fig. 4 is the schematic diagram of dissimilar elastic wristband of the present invention, and is as shown in Figs. 4a-c.
The specific embodiment
Fig. 2 shows the port section with the sleeve (10) of the antistatic clothes of interchangeable elastic wristband (11) of first embodiment of the invention.A pair of attachment device (12), it has the first attachment device (12a) and the second attachment device (12b), the first attachment device (12a) is positioned near the port (13) of sleeve (10) to be located, the second attachment device (12b) is positioned at apart from the first attachment device (12a) segment distance place, therefore elastic wristband (11) between the first attachment device (12a) and the second attachment device (12b), provides a space interval (14), so that can be looped around on the sleeve.Attachment device (12) can be can be adhered to together elastic wristband (11) is encapsulated in any suitable attachment device in the space interval (14), fastens thing etc. such as nylon sticking belt, snap-fastener, standard button or slide fastener class.The slide fastener class is fastened thing and is comprised a pair of interlocking member, enables to realize fastening blockade and the release of thing.The preferred attachment device (12) that the present invention adopts is nylon sticking belt, for this purpose, below will be described further this class attachment device (12).
The first and second attachment devices of the attachment device of nylon sticking belt class (12a, 12b) are respectively sun band and cloudy band.Shown in Fig. 2 a, the first attachment device (12a) peripherally is sewn near sleeve port (13) around sleeve (10) and locates, and the second attachment device (12b) also peripherally is sewn on apart from the first attachment device (12a) segment distance place around sleeve (10).Shown in Fig. 2 b, elastic wristband (11) is then located to be looped around on the sleeve (10) at the space interval (14) of sleeve (10).
Shown in Fig. 2 c, by with the outwards turnover and the first attachment device (12a) is pulled to the second attachment device (12b) of the port of sleeve (10), then press proper alignment, they can be adhered, and this is adhered together attachment device (12), form a pocket.Elastic wristband (11) is encapsulated in this pocket of sleeve (10), thereby consists of elasticity sleeve work clothes of the present invention.
For each individual wearer, the intensity that can obtain to expect with the elastic rubber ring of different in width according to user's situation.Because its distinctive design is encapsulated in the wrist size that the interior elastic wristband (11) of sleeve can change to adapt to the wearer at an easy rate.Elastic tape (11) can be by natural or synthetic rubber or composite material making, so that suitable telescopicing performance to be provided.
The present invention is also so that the elastic tape of different circumferences can be put into this pocket.Can be adapted to so different wrist sizes.This feature is extremely important, because the design of prior art usually is the elastic tape that uses fixed-circumference length, adopts a kind of dimensional fits all working clothes.When the thicker people of wrist puts on this work clothes, will cause elastic tape excessively to stretch, will reduce like this elasticity and the operating period of rubber ring, reduce the reliability of work clothes.Among the present invention, because the peculiar design of sleeve is so that elastic rubber ring can easily be put into and take out, elastic rubber ring just can regularly replace like this.The frequency of changing these elastic rubber rings can the part that previous crops is Operation and Maintenance occur in any possible fault.
In another embodiment of the present invention, to select as another, additional a slice flanging (flap) (15) is attached on the sleeve (10), to form the pocket that can encapsulate elastic rubber ring (11).This can realize like this: flanging (15) is sewn on sleeve (10) apart from the predetermined distance of cuff, shown in Fig. 3 a in the mode of circular rings.Then, with a pair of nylon sticking belt with before similarly mode sew on, make reverse side mutually inwardly towards, so that space interval (14) to be provided.Belt (12) can be pressed the pocket that adheres to each other to be formed for encapsulating elastic wristband (11), and shown in Fig. 3 b and 3c, the elastic wristband of this encapsulation (11) is looped around the space interval (14) of sleeve (10) and locates.This scheme is in fact to add a circle limit at sleeve, reaches the purpose of the replaceable elastic tape of the present invention so that another selection mode to be provided.
In addition, two kinds of embodiments described above can also be applied to the inner face (reverse side) of this class anti-static clothing.When work clothes through the person on the time, for can inwardly folding, the port (13) that can make sleeve (10) is hidden within the sleeve, a pair of attachment device (12) is sewn on inner close port (13) and locates, around sleeve (10), shown in Fig. 4 a, or additional flanging (15) is attached to the inside (not shown) of sleeve (10), to be configured for encapsulating the pocket of elastic wristband (11).
In order before wearing work clothes elastic wristband (11) to be placed on the sleeve, the wearer can be turned up the inner face of the sleeve (10) of work clothes, locates in order to easily elastic wristband (11) is looped around space interval (14).Afterwards by the inside port section of folding sleeve (10), this to attachment device (12) thus just be adhered together and consist of pocket, shown in Fig. 4 b.Wrist strap (11) is encapsulated in the pocket of sleeve (10), shown in Fig. 4 c.
New work clothes design has overcome the defective that prior art exists, and safety and reliable electrostatic defending are provided economically.In a word, although the present invention describes in conjunction with particular form and embodiment, obviously can make various modifications to the present invention, and not depart from the scope of the present invention.
It will be appreciated by those skilled in the art that, in the situation that do not break away from essential characteristic of the present invention, the present invention can also easily implement with other specific forms.Therefore, the embodiment that provides here is for the purpose of illustration only explanation but not limits, and scope of the present invention is defined by the claims, but not the description before being confined to, and all changes of doing accordingly also fall into the scope of claim.