The present invention relates to a glove comprising a collar and to a method for manufacturing such glove.
In many types of work situations gloves are required or desired in order to reduce or remove the time the bare hands are in contact or in risk of contact with for instance chemicals, detergents, or bacteria. On the other hand, the risk of skin diseases, allergy, or skin irritations increases if the gloves are used for too long especially if the gloves are of poor quality.
Some gloves are equipped with means for preventing fluids to run down the arms of the user when working. This feature is of particular importance in some working environments like for example for high voltage gloves where the insulating gloves need to protect the worker and any fluid dripping or running from the glove therefore must be prevented or at least guided safely away from the user.
It is known to make gloves (e.g. in U.S. Pat. No. 2,641,767) comprising a reinforcement placed around the glove opening and made of a sponge-like material capable of absorbing some fluid. In EP 2903484 the gloves are made with a folded down border or collar which acts to catch any fluid running down the glove and cause it to run off away from the arm of the user. However, such gloves have shown disadvantageous in the number of separate parts needed and in their manufacturing method. A further problem has been to obtain a reinforced collar of a sufficiently high stiffness to yield the desired effect of a folded down border yet not so stiff or heavy as to get in the way or irritate the user unnecessarily during use.
It is therefore an object of embodiments of the present invention to overcome or at least reduce some or all of the above described disadvantages of the known gloves with a folded down border or cuff by providing a glove with a folded cuff acting to collect fluid and of increased stiffness to keep the shape yet of low weight.
It is a yet further object of embodiments of the invention to provide an effective and more simple manufacturing method for the manufacture of a glove with a folded cuff and at reduced cost.
In accordance with the invention this is obtained by a ring-shaped member for engaging with an opening of a glove to form a circumferential trough around the opening of the glove, wherein the ring-shaped member comprises a first annular portion of a conical shape, a second annular portion of a conical shape, and a central annular portion in between the first and the second annular portions, and wherein a diameter of the ring-shaped member is the smallest at the central portion, and wherein the ring-shaped member is foldable about the central portion to attain a folded configuration wherein the second annular portion is folded down to lie essentially alongside the first annular portion.
A glove comprising a collar positioned around the opening of the glove to form a circumferential trough around the opening of the glove is known in the art and is advantageous in providing the glove opening with a reinforcement of a desired shape. The collar is advantageous for example in providing a seating for the glove when used in devices for taking on and off gloves by the use of a pressure difference to controllably enlarge the glove. For such devices to be effective, the glove—when inserted in the device—needs to engage with a rim or edge of the device to form a closed airtight compartment. Such device is for example disclosed in EP 2903484. The collar may further prevent the glove from being pushed completely into the container when inserted into the device by the user. Further, the collar of the glove forming a circumferential trough in general advantageously functions as a drip or fluid-catcher or a gutter when a user raises his gloved hand for example during cleaning. Hereby any liquid running down the glove is stopped by the collar or is given a different direction and prevented from running down the arm of the user. However, the known gloves have shown disadvantageous in the number of separate parts needed and in their manufacturing method. A further problem has been to obtain a reinforced collar of a sufficiently high stiffness to yield the desired effect of a folded down border yet not so stiff or heavy as to get in the way or irritate the user unnecessarily during use.
By the provision of the ring-shaped member according to the invention is obtained a reinforcement for a glove which in its folded configuration has a high stiffness and stability yet still some flexibility, and at the same time a structure of low weight. The higher stiffness of the ring-shaped member according to the invention when compared to a conventional structure of e.g. two otherwise separate rings clipped together, is believed to be realized because of the bi-stable structure where the second annular portion is folded down onto the first annular portion in the folded configuration. Hereby, the ring-shaped member can be manufactured at smaller wall thicknesses and thereby at a lower weight. This is advantageous in making the ring-shaped usable on gloves of a thinner glove material and thereby usable on gloves for more applications where thinner gloves are preferred. At the same time, the ring-shaped member still comprises some flexibility especially in its transverse direction where the member can be temporarily deformed into a more oval shape. This is advantageous when positioned on a glove in not being in the way for the user and in reducing the risk of getting caught on edges or the like when the user is working.
An important advantage of the ring-shaped member is that the ring-shaped member because of its foldability can be attached to a glove in a very few, simple and fast operations which may optionally be completely automated or optionally completely manual if preferred. The ring-shaped member may be attached to the glove by simply pulling and/or stretching the glove edge over the edge of the second annular portion and then folding the member into its folded configuration. The manufacture of the glove comprising a collar can hereby be performed faster and at lower costs. The manufacturing costs are further reduced by the reduction of the number of component during the assembly of the glove.
Additionally, as the ring-shaped member can be manufactured as a single component in one piece and in a single processing step without the need for any post-processing, the manufacturing costs of the ring-shaped member are likewise reduced.
In an embodiment the first and second annular portions extend essentially the same length from their largest to their smallest diameter. Alternatively, the second annular portion may extend a length larger than the first annular portion. Hereby the second annular portion may cover the first annular portion entirely in the folded configuration. The first and/or second annular portion may extend a length of 5-25 mm such as in the range of 5-10 mm. The conical height of the first and/or second annular portions may be in the range of 5-40 mm, such as in the range of 5-10 mm. The diameter of the central portion may be adjusted to fit different sizes of gloves and may be in the range of 70-150 mm such as in the range of 100-120 mm.
In an embodiment, the central portion of the ring-shaped member comprises a number of holes. Hereby the stiffness of the central portion is reduced and less force is needed to fold the ring-shaped member into its folded configuration while the overall stiffness of the ring-shaped member in its folded configuration is not or only minimally reduced. The holes may advantageously be formed during an injection moulding of the ring-shaped member or may be cut in a later step. The central portion may comprise a number of holes depending on the size of the ring-shaped member in the range of 50-200 such as in the range of 60-80. The holes may attain different shapes such as circular, oval or square.
In an embodiment a wall thickness of the central portion is smaller than a wall thickness of the first and/or second annular portion. Hereby the stiffness of the central portion is reduced and less force is needed to fold the ring-shaped member into its folded configuration while the overall stiffness of the ring-shaped member in its folded configuration is not or only minimally reduced. The wall thickness of the central portion may be in the range of 0.5-4 mm, such as in the range of 0.05-1.0 mm, such as in the range of 0.10-0.50 mm, such as in the range of 0.12-0.37 mm. The wall thickness of the central annular portion may be thinner near the center and/or may thicken out towards the first and second annular portions. The height or length of the central annular portion may be in the range of 3-15 mm, such as in the range of 8-10 mm and of approximately 9 mm, or such as in the range of 5-7 mm and of approximately 6 mm. The central annular portion may hereby be dimensioned to correspond to and to fit onto gloves of different material thickness and/or with rolled edges of different sizes.
The wall thickness of the first and second annular portions may be in the range of 0.7-2.0 mm, such as in the range of 0.9-1.2 mm. The first and second annular portions may have the same wall thickness, or may be of different wall thickness, preferably with the second annular portion having a larger wall thickness than the first annular portion. In an embodiment, the ring-shaped member further comprises a number of clips compliantly attached to an edge of the first annular portion. By compliantly attached is to be understood that the clips can be bend at least once or a few times without breaking off the first annular portion. Hereby the clips can be bent about and clipped onto and around the second annular portion when folded, to thereby fixate the ring-shaped member in its folded configuration by simple means and in a simple and fast operation. Hereby the stiffness and thereby the weight of the ring-shaped member can be reduced even further, as the clips aid in holding the ring-shaped member in its folded configuration.
Because the clips are compliantly mounted on the first annular portion, the ring-shaped member can still be manufactured as a single unit in one piece. Further, the attachment to the first annular portion ensured a correct placement of the clips on the ring-shaped member.
In an embodiment, the ring-shaped member comprises a number of clips such as 2, 3, 4, or 5 clips. Advantageously, the clips may be evenly distributed around the circumference of the first annular portion.
The ring-shaped member may be made of a plastic material of the group of PPC, PP, PVC, POM, PP-H, or PE. Hereby the ring-shaped member may be effectively manufactured by injection moulding and with a low weight yet high stiffness.
The invention further relates to a glove comprising at a first end a hand-shaped portion and at the opposite second end a shaft portion with an opening for the insertion of a hand of a user, wherein the glove comprises a collar of a generally conical shape and positioned around the opening of the glove, the collar extending from the opening with an increasing diameter in a direction towards the first end of the glove such as to form a circumferential trough on the glove, wherein the collar of the glove comprises a ring-shaped member according to any of the preceding and wherein the ring-shaped member is folded into its folded configuration when positioned on the glove.
The advantages hereof are as mentioned in the previous in relation the ring-shaped member.
In an embodiment, at least the shaft portion of the glove is made of an elastic material and the ring-shaped member is attached to the glove by a portion of the elastic material being stretched over at least the second annular portion of the ring-shaped member. Hereby the ring-shaped member is attached to the glove by few and simple operations yet in an effective manner where the ring shaped member can not fall or be pulled off the glove unintentionally. Further, the attachment can be performed either completely automated or completely manually as desired. Further, the attachment can be performed without the need for any attachment means, neither mechanical nor chemical.
In an embodiment, a portion of the elastic material lies in between the first and the second annular portions when folded. In this way, the ring-shaped member is folded around a layer of the elastic material of the glove thereby holding the layer firmly in place. The ring-shaped member is hereby firmly attached to the glove.
In an embodiment, the glove further comprising a number of clips clipped around at least a part of the ring-shaped member for securing the folded configuration of the ring-shaped member. The clips may be separate members or may be attached to the first annular portion of the ring-shaped member as described in the previous. The clips hereby provide for an additional mechanical fastening of the ring-shaped member to the glove and ensure that the ring-shaped member stays in its folded configuration and cannot open up. Hereby the stiffness and thereby the weight of the ring-shaped member may be reduced even further without jeopardizing the attachment to the glove.
The invention further relates to a method of manufacturing a glove according to any of the preceding, wherein the method comprises the steps of providing a glove of an elastic material, providing a ring-shaped member as described in the above, folding a portion of the glove near the opening over the second annular portion, and folding the ring-shaped member into its folded configuration to thereby form the circumferential trough on the glove. The portion of the glove may be folded by stretching the elastic material of the glove over the second annular portion.
The advantages hereof are as described in relation to the glove and to the ring-shaped member.
In an embodiment, the method further comprises guiding the glove through the central opening of the ring-shaped member. Hereby the glove is conveniently brought into position for stretching the rim of the glove over the second annular member so that the ring-shaped member is attached with the desired orientation on the glove to form the circumferential trough.
In an embodiment the method further comprises clipping one or more clips around at least a part of the ring-shaped member for securing the folded configuration of the ring-shaped member. The advantages hereof are described in the previous.
Alternatively or additionally the method may comprise securing the folded configuration of the ring-shaped member by the addition of an adhesive.
In an embodiment, the method further comprises the steps of providing a fixture and positioning the ring shaped member on the fixture prior to the step of folding the portion of the glove about the second annular portion. The fixture hereby aids in holding the ring-shaped member in position while stretching the glove over the second annular portion. The method can in this way be performed at higher speed and more easily.
In the following different embodiments of the invention will be described with reference to the drawings, wherein:
As outlined in
A glove 100 comprising such advantageous collar 102 may conventionally be manufactured by dip moulding by placing a ring 201 of a generally conical shape on the shaft or around the wrist of a hand model on a correspondingly conical surface. The hand model is then dipped and covered with the glove material one or more times. When dried and vulcanized, the glove is pulled off the model, and turned inside out except from the part reinforced by the ring. The border of the glove thereby remains bended down when pulled off the hand model forming a collar 102 and as illustrated in
In order to create the desired underpressure within the container 501, the glove 100 preferably needs to seal against the opening 502 of the container. The glove according to the invention comprising a conical collar 102 is particularly advantageous in this respect because of the collar 102 both in providing a seating for the collar against the opening of the container and in preventing the glove in being unintentionally pressed down into the compartment by the user.
This functioning can be seen in more detail in
The conical collar 102 or folded down border of the glove acts to reinforce the glove opening. The collar furthermore act to maintain the overall shape of the glove opening such that is easier inserted onto the rim 503 of the container opening and such that the collar acts as a seating against the opening of the container effectively sealing the compartment for the underpressure to be effectively created. As mentioned previously, the collar of the glove may also be advantageous in preventing fluid from running from the gloved hands and down the arms when working.
In order to realize these advantages, the collar of the glove needs to have a certain stiffness On the other hand a too rigid collar decreases the comfort of the user and may even be in the way or get caught in corners or the like when the user is working. Further, the collar should advantageously have as small a weight as possible in order to work effectively on gloves with a thinner material thickness.
These advantages are all obtained by a glove with a collar comprising a ring-shaped member 800 according to the embodiment shown in
The foldability of the ring-shaped member 800 may be facilitated by for example a curved or semi-circular cross-sectional shape of the central portion 803 as can be seen more clearly in
In an embodiment, the ring-shaped member 800 is moulded in one piece as a single component. The ring-shaped member may be moulded by injection molding of a plastic material such as a PPC, PP, PVC, POM, PP-H, or PE.
By the stretching of the elastic material over at least a part of the ring-shaped member 800, the ring-shaped member is attached to the opening 101 of the glove to form a circumferential trough 104 around the opening of the glove.
Two embodiments of a ring-shaped member 800 are shown in greater details in
The wall thickness 1602 of the central annular portion 803 may be thinner near the center and may thicken out towards the first and second annular portions 801, 802. The wall thickness 1602 may be in the range of 0.05-0.50 mm, such as in the range of 0.12-0.37 mm. The wall thickness 1603 of the first and second annular portions 801, 802, may be in the range of 0.7-2.0 mm such as in the range of 0.9-1.2 mm (as on the embodiments of
Additionally or alternatively, an adhesive may be used to secure the ring-shaped member in its folded configuration.
While preferred embodiments of the invention have been described, it should be understood that the invention is not so limited and modifications may be made without departing from the invention. The scope of the invention is defined by the appended claims, and all devices that come within the meaning of the claims, either literally or by equivalence, are intended to be embraced therein.
Number | Date | Country | Kind |
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17166288.5 | Apr 2017 | EP | regional |
Filing Document | Filing Date | Country | Kind |
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PCT/EP2018/059287 | 4/11/2018 | WO | 00 |