CN110884011B

CN110884011B - Gloves and gloves mould of this gloves of preparation

Info

Publication number: CN110884011B
Application number: CN201811057993.0A
Authority: CN
Inventors: 郑凯文; 郑凯元
Original assignee: Huayi Enterprise Co ltd; Motex Healthcare Anhui Co ltd; Shanghai Motex Healthcare Co Ltd
Current assignee: Huayi Enterprise Co ltd; Motex Healthcare Anhui Co ltd; Shanghai Motex Healthcare Co Ltd
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2022-05-27
Anticipated expiration: 2038-09-11
Also published as: CN110884011A

Abstract

The invention provides a glove and a glove mold for manufacturing the glove. The palm portion is connected in this wrist portion, and thumb portion is connected in this palm portion, and forefinger portion is connected in this palm portion, and a straight line along the edge extension of this forefinger portion that is close to this thumb portion is defined as first baseline, and ring finger portion connects in this palm portion, and little finger portion connects in this palm portion, and wherein the junction of this thumb portion and this palm portion is located the both sides of this first baseline with this forefinger portion, and the projection of this thumb portion and this forefinger portion on a plane that is on a parallel with this palm portion is non-overlapping.

Description

Gloves and gloves mould of this gloves of preparation

Technical Field

The invention relates to a glove and a glove mold for manufacturing the same.

Background

The gum dipping type glove is dipped into the liquid raw material by using the glove mold, so that the liquid raw material is coated on the surface of the glove mold, and then the liquid raw material is dried and shaped to complete the finished product. The differences in the structural design of the glove mold also cause differences in the wearing of the glove made therefrom, such as the degree of fit, ease of donning and doffing of the glove, flexibility of hand movement during donning, comfort for long-term donning, etc., which are conditions to be considered in designing the glove and the mold for making the same. For example, in a special glove used in an application field requiring a precise operation using a hand such as a surgical operation, the requirements for the above conditions are more strict.

Due to the following disadvantages in the wearing of such gloves of the prior art:

1. as shown in FIGS. 1-4, prior art gloves G1, G2 are generally close to or overlap the inside of the index finger portion at the bottom of the thumb portion, which is not ergonomic, and are prone to fatigue and hand discomfort over extended periods of time due to the relaxed hand position with no overlap or close proximity between the thumb and index finger.

2. As shown in FIG. 5, the fingers of the glove G2 of the prior art are bent and have arc shape integrally with the back of the hand, but when putting on or taking off the glove, the hand is generally in a straight state, and the design of the hand model is easy to cause difficulty in putting on or taking off the glove.

3. As shown in FIGS. 1-4, prior art gloves G1, G2 have perpendicular or minimal outward protrusions at the wrist and little finger portions, which is not ergonomic because the little finger is slightly outward in the natural state of the human hand.

In addition, fig. 6-15 show the glove mold of the prior art, the thumb part of the glove mold of the prior art is closer to the index finger part, even a part of the thumb part is overlapped with the index finger part, and the back part of the palm is in a curved arc shape, as shown in fig. 8-9, the back part of the palm of the manufactured glove is also in a curved arc shape, thereby causing the problem of uneasy putting on and taking off, while the little finger part is closer to the ring finger part as shown in fig. 6-7, 10-11, thereby making the manufactured glove less conform to the human engineering and causing fatigue feeling when the user wears the glove for a long time.

Disclosure of Invention

Other objects and advantages of the present invention will be further understood from the technical features disclosed in the embodiments of the present invention.

The invention aims to provide a glove mold, wherein the joint of a thumb part and a palm part is far away from an index finger part, so that the thumb part and the index finger part cannot be overlapped, the palm back part is in a shape of straightening and descending, a manufactured glove is convenient for a user to put on and take off, and in addition, a little finger part extends outwards, so that the manufactured glove is more in line with human engineering.

In order to achieve the purpose, the invention adopts the technical scheme that:

a glove mold, comprising:

a wrist portion;

a palm portion connected to the wrist portion;

a thumb part connected to the palm part;

a forefinger part connected to the palm part, a line extending along an edge of the forefinger part near the thumb part is defined as a first base line, and an intersection point of the first base line and the palm part between the thumb part and the forefinger part is defined as a first reference point;

a middle finger part connected with the palm part, wherein a straight line extending along the center of the middle finger part is defined as a second base line;

a ring finger part connected to the palm part; and

and the small finger part is connected with the palm part, wherein the joint of the thumb part and the palm part and the index finger part are positioned at two sides of the first base line, and the projections of the thumb part and the index finger part on a plane parallel to the palm part are not overlapped.

In the glove mold, the part of the thumb part close to the finger tip is bent and is bent towards the palm part.

In the glove mold, the distance from the first base line to the farthest position of the thumb part from the palm part is greater than or equal to 20mm and less than or equal to 40 mm.

In the glove mold, the distance from the second base line to the farthest position of the thumb part from the palm part is greater than or equal to 45mm and less than or equal to 70 mm.

In the glove mold, a distance from the first reference point to the outermost side of the palm portion is greater than or equal to 30mm and less than or equal to 45mm, and the outermost side of the palm portion is adjacent to the joint of the thumb portion and the palm portion.

In the glove mold, an angle formed by the edge of the thumb part relative to the palm part is greater than or equal to 65 degrees and less than or equal to 75 degrees.

A glove mold, comprising:

a wrist portion;

a palm portion connected to the wrist portion, the palm portion having a palm center surface and a palm back surface, a joint of the wrist portion and the palm portion being defined as a second reference point;

a thumb part connected to the palm part;

a forefinger part connected to the palm part;

a middle finger part connected with the palm part;

a ring finger part connected to the palm part; and

a little finger part connected with the palm part, wherein when the back face faces upwards, the back face is lower than the second datum point and the back face is gently inclined.

In the glove mold, the distance between the second reference point and the lowest point of the palm back surface is greater than or equal to 15mm and less than or equal to 16 mm.

A glove mold, comprising:

a wrist portion;

a palm portion connected to the wrist portion;

a thumb part connected to the palm part;

a forefinger part connected to the palm part;

a middle finger part connected with the palm part, and a line extending along the center of the middle finger part is defined as a second base line;

a ring finger part connected to the palm part; and

a little finger part connected to the palm part, a line extending along the outer edge of the little finger part is defined as a third base line, wherein an angle formed between a tangent line of the outer edge of the little finger part where the little finger part is connected with the palm part and the third base line is greater than or equal to 10 degrees and less than or equal to 15 degrees.

The invention also provides a glove which is manufactured by using the glove mold.

The invention adopts the new design of the hand model structure, so that the gloves made of the hand model can be worn more comfortably and comfortably, are fit for human engineering and are easy to wear and take off.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 and 2 are schematic views of two prior art gloves, respectively, as viewed from the palm side.

Fig. 3 and 4 are schematic views of the gloves of fig. 1 and 2, respectively, as viewed from the dorsal aspect.

Fig. 5 is a schematic view of the glove of fig. 2 viewed from the pinky finger.

Fig. 6 and 7 are schematic views of two prior art glove molds viewed from the palm back side, respectively.

Fig. 8 and 9 are schematic views of the glove mold of fig. 6 and 7, respectively, as viewed from the direction of the thumb.

Fig. 10 and 11 are schematic views of the glove mold of fig. 6 and 7, respectively, as viewed from the palm side.

Fig. 12 and 13 are schematic views of the glove mold of fig. 10 and 11, respectively, viewed from the palm surface slightly away from the direction of the small finger.

Fig. 14 and 15 are schematic views of the glove mold of fig. 6 and 7, respectively, as viewed from a direction in which the tip of each finger portion is slightly biased toward the thumb portion.

FIG. 16 is a schematic view of an embodiment of the glove mold of the present invention viewed from the dorsal side.

FIG. 17 is a schematic view of the glove mold of FIG. 16 viewed from the direction of the thumb.

FIG. 18 is a schematic view of the glove mold of FIG. 16 viewed from the palm side.

Figure 19 is a schematic view of the glove mold of figure 18 viewed from the palm slightly off the small fingers.

FIG. 20 is a schematic view of the glove mold of FIG. 16, viewed from a fingertip of each finger slightly offset from the thumb.

FIG. 21 is a schematic view of a glove made with the glove mold of FIG. 16, viewed from the palm side.

FIG. 22 is a schematic view of a glove made with the glove mold of FIG. 16, viewed from the dorsal side.

Fig. 23 is a schematic view of a glove made with the glove mold of fig. 16 viewed from the little finger.

Detailed Description

Please refer to fig. 16, which illustrates an embodiment of the present invention. The glove mold 100 of the present invention includes a wrist portion 10, a palm portion 20, a thumb portion 30, an index finger portion 40, a middle finger portion 50, a ring finger portion 60, and a little finger portion 70. The palm portion 20 is connected to the wrist portion 10, the thumb portion 30 is connected to the palm portion 20, the index finger portion 40 is connected to the palm portion 20, a straight line extending along an edge of the index finger portion 40 near the thumb portion 30 is defined as a first base line L1, an intersection point of the first base line L1 and the palm portion 20 between the thumb portion 30 and the index finger portion 40 is defined as a first reference point P1, the middle finger portion 50 is connected to the palm portion 20, a straight line extending along a center of the middle finger portion 50 is defined as a second base line L2, the ring finger portion 60 is connected to the palm portion 20, the small finger portion 70 is connected to the palm portion 20, wherein a connection point of the thumb portion 30 and the palm portion 20 and the index finger portion 40 are located on both sides of the first base line L1, and projections of the thumb portion 30 and the index finger portion 40 on a plane parallel to the palm portion 20 do not overlap.

The thumb part 30 is connected to the thenar 21(thenar) of the palm part 20, and compared with the conventional glove mold shown in fig. 6 and 7, the thumb part 30 of the glove mold 100 of the present invention protrudes outward from the thenar 21 of the palm part 20, and the thumb part 30 of the glove mold 100 of the present invention is spaced apart from a first base line L1 passing through the outer edge of the index finger part 40 by a large distance, and the thumb part 30 does not overlap the index finger part 40.

Further, a portion of the thumb 30 near the tip of the finger is curved and curves toward the palm portion 20. The index finger portion 40, the middle finger portion 50, the ring finger portion 60, and the little finger portion 70 are connected to the palm portion 20 in sequence, and the distance therebetween is gradually increased from the root connected to the palm portion 20 toward the finger tip, compared to the index finger portion, the middle finger portion, the ring finger portion, and the little finger portion of the conventional glove mold shown in fig. 6 and 7 which are arranged in parallel to each other.

Table 1 shows a list of the distance Δ L1 from the first baseline (the outer edge of the digit) of the prior art glove form and the glove form of the present invention to the farthest distance of the thumb from the palm.

TABLE 1

As can be seen from a comparison of Table 1, Δ L1 of glove mold 100 of the present invention is greater than or equal to 20mm and less than or equal to 40mm, i.e., 20mm ≦ Δ L1 ≦ 40mm, and the ratio of Δ L1 to the circumference of the glove palm width is 0.1205 ≦ Δ L1/D ≦ 0.1587. Whereas the maximum value of Δ L1 for the prior art glove mold shown in fig. 6 is 1.5mm for the 8.0 glove and the maximum value of Δ L1 for the prior art glove mold shown in fig. 7 is 14.8mm for the 7.5 glove, it can be seen that the thumb 30 of the glove mold 100 of the present invention protrudes further outward than the thumb of the prior art glove mold.

Referring to fig. 17, when the glove mold 100 of the present invention is viewed from the direction of the thumb 30, the palm portion 20 has a palm surface 22 and a palm back surface 23, the joint between the wrist portion 10 and the palm portion 20 is defined as a second reference point P2, and when the palm back surface 23 faces upward, the palm back surface 23 is lower than the second reference point P2. On the other hand, the palm-back surfaces of the related art glove molds shown in fig. 8 and 9 are curved in an arc shape, that is, the palm-back surfaces of the related art glove molds shown in fig. 8 and 9 are higher than the second reference point P2. Therefore, the back of the palm of the glove manufactured by the glove mold in the prior art is in a curved arc shape, and the shape is not easy to straighten due to the influence of the shape of the glove on the hand of the user when the glove is put on or taken off, so that the glove is easy to block by the back of the hand of the user and is not easy to put on or take off, the back of the palm 23 of the glove mold 100 in the invention is gently inclined and is lower than the wrist part 10, so that the palm of the user can be easily straightened when the user puts on or takes off the glove, and the glove is not easy to block by the back of the hand of the user and is easy to smoothly put on or take off.

Table 2 shows a list of distances Δ L2 between the second reference point P2 and the lowest point of the palm back surface of the glove mold of the related art and the glove mold of the present invention.

TABLE 2

As can be seen from comparison in table 2, the palm back 23 of the glove mold 100 of the present invention is lower than the second reference point P2, so the palm back of the glove manufactured by the glove mold 100 of the present invention is also lower than the wrist portion, while the palm back of the glove manufactured by the glove mold of the prior art shown in fig. 8 and 9 is higher than the wrist portion, so the glove is not easy to be put on or taken off, and the distance between the lowest point of the palm back 23 of the glove mold 100 of the present invention and the second reference point P2 is greater than or equal to 15mm and less than or equal to 16mm, that is, Δ L2 is less than 15mm but less than 16 mm.

Referring to fig. 18, a glove mold 100 of the present invention is shown viewed from the palm side 22. As can be seen more clearly from fig. 18, the thumb 30 and the joint of the thumb 30 and the palm 20 of the glove mold 100 of the present invention are far from the palm center of the palm 20, and the thumb 30 and the index finger 40 do not overlap, and the second base line L2 is a straight line extending along the center of the middle finger 50, and compared to the glove mold of the prior art shown in fig. 10 and 11, the distance between the farthest position of the thumb 30 from the palm 20 and the second base line L2 of the glove mold 100 of the present invention shown in fig. 18 is much greater than that of the glove mold of the prior art shown in fig. 10 and 11.

Table 3 shows a list of second baseline L2 of the prior art glove mold and the glove mold of the present invention and the distance Δ L3 of the thumb of the glove mold farthest from the palm.

TABLE 3

As can be seen from a comparison of table 3, the distance between the farthest position of the thumb of the glove mold 100 of the present invention and the second baseline passing through the center of the middle finger portion is greater than or equal to 45mm and less than or equal to 70mm, i.e., 45mm ≦ Δ L3 ≦ 70mm, and the ratio of Δ L3 to the circumference D of the glove palm width is greater than or equal to 0.2659 and less than or equal to 0.2783, i.e., 0.2659 ≦ Δ L3/D ≦ 0.2783. Whereas the Δ L3 of the prior art glove mold shown in fig. 10 is 27mm (# 7.5) and 30.2mm (# 8.0), the Δ L3 of the prior art glove mold shown in fig. 11 is 41.8mm (# 7.0) and 44.3mm (# 7.5), both of which are smaller than the Δ L3 of the glove mold 100 of the present invention. Therefore, the glove manufactured by the glove mold 100 of the present invention is more in line with human engineering, i.e. more in line with the distance between the thumb part and the palm part of the human palm in a natural state, and can be worn for a long time without fatigue.

Referring to fig. 19, a glove mold 100 of the present invention is shown as viewed from the palm surface 22 slightly shifted toward the little finger 70. As previously described, the first reference point P1 is the intersection point of the first base line L1 and the palm portion 20 between the thumb portion 30 and the index finger portion 40, and as can be seen from fig. 19, the distance from the first reference point P1 to the outermost side of the palm portion 20 of the glove mold 100 of the present invention is significantly greater than the distance from the first reference point to the outermost side of the palm portion of the prior art glove mold shown in fig. 12 and 13. Thus, the glove manufactured by the glove mold 100 of the present invention is more suitable for the shape of the palm of the human body in a natural state, and is less likely to cause fatigue to the user.

Table 4 shows a list of distances Δ L4 from the first reference point to the palm outermost side of the glove mold of the prior art and the glove mold of the present invention.

TABLE 4

As can be seen from comparison of table 4, the distance Δ L4 from the first reference point P1 to the outermost side of the palm portion 20 of the glove mold 100 of the present invention is greater than or equal to 30mm and less than or equal to 45mm, i.e., 30mm ≦ Δ L4 ≦ 45mm, and the ratio of Δ L4 to the circumference D of the glove palm width is greater than or equal to 0.1785 and less than or equal to 0.2030, i.e., 0.1785 ≦ Δ L4/D ≦ 0.2030. The Δ L4 of the glove mold of the prior art shown in fig. 12 is 32mm (# 7.5) and 37.4mm (# 8.0), and the Δ L4 of the glove mold of the prior art shown in fig. 13 is 35.3mm (# 7.0) and 37.6mm (# 7.5), so the glove manufactured by the glove mold 100 of the present invention is more ergonomic, i.e., more in line with the distance between the tiger's mouth and the outermost side of the palm in the natural state of the palm, and is less tense.

Referring to fig. 20, a glove mold 100 according to the present invention is shown as viewed from a direction in which the tip of each finger portion is slightly offset from the thumb portion. Compared to the glove mold of the prior art shown in fig. 14 and 15, the glove mold 100 of the present invention has a smaller angle between the thumb 30 and the palm 20 at the thenar area 21, i.e., the degree of inclination of the thumb 30 to the palm 20 is smaller in the glove mold 100 of the present invention, and the glove manufactured by the glove mold 100 of the present invention is closer to the natural state of the human palm.

Table 5 shows a list of angles formed between the thumb and palm of the prior art glove mold and the glove mold of the present invention.

TABLE 5

As can be seen from comparison in table 5, the angle R1 formed between the thumb 30 and the palm 20 of the glove mold 100 of the present invention is greater than or equal to 65 degrees and less than or equal to 75 degrees, i.e. 65 ≦ R1 ≦ 75, while the angles R1 formed between the thumb and the palm of the glove mold of the prior art shown in fig. 14 are 71 degrees (# 7.5) and 80 degrees (# 8.0), and the angle R1 formed between the thumb and the palm of the glove mold of the prior art shown in fig. 15 is 80 degrees (# 7.0) and 81 degrees (# 7.5), so it can be seen that the thumb of the glove mold of the prior art shown in fig. 14 and 15 is bent toward the palm, and therefore the glove mold 100 of the present invention is more ergonomic.

Referring back to fig. 16, a straight line extending from the outer edge of the little finger portion 70 is defined as a third base line L3, and compared with the glove mold of the prior art shown in fig. 6 and 7, an angle formed between a tangent line T of the outer edge at the junction of the little finger portion 70 and the hypothenar 24 of the palm portion 20 of the glove mold 100 of the present invention and the third base line L3 is larger, that is, the little finger portion 70 of the glove mold 100 of the present invention extends toward the outer side of the palm portion 20, so that the glove manufactured by the glove mold 100 of the present invention is more suitable for the natural state of the human palm,

table 6 shows a list of angles formed between the tangents at the junction of the little finger and palm of the prior art glove mold and the glove mold of the present invention and the third baseline.

TABLE 6

As can be seen from comparison of table 6, an angle R2 formed between a tangent T of an outer edge of the connecting portion between the small finger portion 70 and the palm portion 20 of the glove mold 100 of the present invention and the third baseline L3 is greater than or equal to 10 degrees and less than or equal to 15 degrees, that is, 10 ≦ R2 ≦ 15, whereas the angles R2 of the glove mold of the prior art shown in fig. 6 are 5 degrees (# 7.5) and 6 degrees (# 8.0), and the angles R2 of the glove mold of the prior art shown in fig. 7 are 4 degrees (# 7.0) and 3 degrees (# 7.5), so that the small finger portion 70 of the glove mold 100 of the present invention extends more toward the outside of the palm portion 20 than the prior art, and the glove manufactured by the glove mold 100 of the present invention is more ergonomic.

In fig. 21 and 22, the glove G3 manufactured by using the glove mold 100 of the present invention is compared with the gloves G1 and G2 of the prior art shown in fig. 1 to 4, and it can be seen that the thumb and the thenar of the glove G3 of the present invention are both away from the palm, and the thumb and the forefinger of the glove G3 are not overlapped, and the little finger of the glove G3 is also more toward the outside of the palm, so that the glove G3 of the present invention is closer to the natural state of the palm of the human body, and is more ergonomic and can be worn for a long time without fatigue.

As shown in fig. 23, the glove G3 of the present invention is inflated to maintain its shape, but as can be seen from fig. 23, the index finger portion, middle finger portion, ring finger portion, and little finger portion of the glove G3 of the present invention are in a straight state, and the palm back portion is in an arc shape due to inflation, but as can be seen from the state in which all four fingers are in a straight state, the palm back portion of the glove G3 of the present invention is also in a straight state, and when putting on and taking off the glove, it can be easily and smoothly operated, whereas as for the glove G2 of the related art shown in fig. 5, the four fingers are in a curved state, and the back palm portion of the glove G2 is also in a curved projected state, which is disadvantageous for putting on and taking off the glove.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A glove mold, comprising:

a wrist portion;

a palm portion connected to the wrist portion, the palm portion having a large thenar;

a thumb part, the part of which far away from the finger tip is connected with the palm part;

a forefinger part connected to the palm part, a first base line defined by a straight line extending along an edge of the forefinger part close to the thumb part, a first reference point defined by an intersection of the first base line and the palm part between the thumb part and the forefinger part, a curved portion of the thumb part close to the fingertip of the thumb part, a curved portion of the thumb part close to the fingertip, a curved portion of the thumb part toward the palm part, a distance between a portion of the thumb part far from the fingertip of the thumb part and the first base line passing through an outer edge of the forefinger part being greater than a distance between a portion of the thumb part close to the fingertip of the thumb part and the first base line;

a ring finger part connected to the palm part; and

and the little finger part is connected with the palm part, wherein the joint of the thumb part and the palm part and the index finger part are positioned at two sides of the first base line, the projection of the thumb part and the index finger part on a plane parallel to the palm part is not overlapped, and the distance from the second base line to the farthest position of the thumb part and the palm part is more than or equal to 45 millimeters and less than or equal to 70 millimeters.

2. The glove mold according to claim 1, wherein the distance from the first base line to the farthest point of the thumb from the palm is greater than or equal to 20mm and less than or equal to 40 mm.

3. The glove mold of claim 1, wherein the distance from the first reference point to the outermost side of the palm portion is greater than or equal to 30mm and less than or equal to 45mm, the outermost side of the palm portion being adjacent to the junction of the thumb portion and the palm portion.

4. The glove mold of claim 1 wherein the edge of the thumb portion forms an angle of greater than or equal to 65 degrees and less than or equal to 75 degrees with respect to the palm portion.

5. A glove mold, comprising:

a wrist portion;

a palm portion connected to the wrist portion, the palm portion having a thenar, a palm center plane and a palm back plane, a joint of the wrist portion and the palm portion being defined as a second reference point;

a thumb part, the part of the thumb part far away from the finger tip is connected with the thenar of the palm part, the part of the thumb part close to the finger tip of the thumb part is bent, and the part of the thumb part close to the finger tip is bent towards the palm part;

a forefinger portion connected to the palm portion, a portion of the thumb portion remote from the fingertip of the thumb portion being further from the forefinger portion than a portion of the thumb portion proximate to the fingertip of the thumb portion;

a ring finger part connected to the palm part; and

a little finger part connected with the palm part, wherein when the back face faces upwards, the back face is lower than the second datum point and the back face is gently inclined;

wherein the distance from the second base line to the farthest position of the thumb part from the palm part is more than or equal to 45mm and less than or equal to 70 mm.

6. A glove mold as defined in claim 5, wherein the distance between the second datum point and the lowest point of the dorsal surface is greater than or equal to 15mm and less than or equal to 16 mm.

7. A glove mold, comprising:

a wrist portion;

a thumb part, the part of which far away from the fingertip of the thumb part is connected with the thenar of the palm part;

a forefinger part connected to the palm part;

a ring finger connected to the palm portion, a portion of the thumb portion close to the fingertip of the thumb portion being curved toward the palm portion, a portion of the thumb portion away from the fingertip of the thumb portion being further away from the index finger portion than a portion of the thumb portion close to the fingertip of the thumb portion; and

a little finger part connected to the palm part, a line extending along the outer edge of the little finger part is defined as a third base line, wherein an angle formed between a tangent line of the outer edge of the little finger part where the little finger part is connected with the palm part and the third base line is greater than or equal to 10 degrees and less than or equal to 15 degrees;

8. A glove formed from a glove former as claimed in any one of claims 1 to 7.