Quick connecting device and dip net

Abstract

The utility model relates to a quick connecting device and a dip net. The quick connecting device comprises a male plug assembly and a female connector assembly. The male plug assembly comprises a male insertion rod, a first fixing seat, a limiting head and a first elastic element, the male insertion rod is provided with a first central through hole and a first radial through hole, and the first fixing seat, the limiting head and the first elastic element are located in the first central through hole of the male insertion rod together; the head part of the limiting head is exposed from the first radial through hole of the male insertion rod; a female plug sleeve of the female joint assembly is provided with a second central through hole and a second radial through hole; and the upper part of the male plug rod is inserted from the second central through hole of the female plug sleeve, so that the head part of the limiting head of the male plug assembly is clamped in the second radial through hole of the female plug sleeve, and the male plug assembly and the female connector assembly are connected together. The quick connecting device has the advantages of being simple in structure, convenient to operate, firm in fixation, short in operation time and the like.

Description

[Technical field]

[0002] The utility model relates to a connecting device for connecting two objects together, in particular to a connecting device for quickly and detachably connecting two objects together; the utility model also relates to an accessory for fishing or catching fish, in particular to a scoop net or a fishing net used for fishing or catching fish. [Background technology]

[0004] Fishing and / or fishing has become one of the most favorite entertainment activities for modern people. It can relax the anglers and / or fishers and exercise the body. Therefore, fishing and / or fishing has not only become a popular leisure and entertainment activity for middle-aged and elderly people, but is also favored by many young people.

[0005] A scoop net is a kind of fishing and / or fishing tool. Its simple structure and convenient use make it the most popular fishing and / or fishing tool. A scoop net is mainly composed of a net ring, a net bag fixed on the net ring, and a scoop net rod. In order to facilitate replacement and carrying, the connection between the scoop net rod and the net ring is usually connected by threaded bolts. However, this connection method is time-consuming and labor-intensive to disassemble and assemble, and is prone to rust and looseness, causing the scoop net rod and the net ring to separate. Especially when catching big fish, the big fish struggles very hard. Once the scoop net rod and the net ring are separated, the loss will be relatively large.

[0006] In the prior art, threaded bolts are often used to connect two objects together, which also has the above-mentioned shortcomings. [Contents of the utility model]

[0008] The technical problem to be solved by the utility model is to avoid the deficiencies of the above-mentioned prior art and provide a quick connection device and a scoop net. The quick connection device can quickly and detachably connect two objects together, for example, the scoop net rod and the net ring of the scoop net can be quickly fixed together, and the fixation is reliable and not easy to fall off, and the scoop net rod and the net ring of the scoop net can also be quickly separated. The utility model has the advantages of simple structure, convenient operation, reliable fixation and short operation time.

[0009] The technical solution adopted by the utility model to solve the technical problem is:

[0010] A quick connection device is provided for quickly and detachably connecting two objects together, including a male plug assembly and a female connector assembly; the male plug assembly includes a male plug rod provided with a first central through hole, a first fixed seat, a limiting head and a first elastic element, the upper part of the male plug rod is provided with a first radial through hole that intersects with the first central through hole, the first fixed seat is provided with a first opening groove, the limiting head includes a limiting portion and a head connected to the limiting portion, the first elastic element is located in the first opening groove of the first fixed seat, the tail end of the limiting portion of the limiting head is also located in the first opening groove of the first fixed seat, the first elastic element is located between the bottom of the first opening groove and the limiting portion of the limiting head, the first fixed seat, the limiting head and the first elastic element The first fixing member is located together in the first central through hole of the male plug rod, the bottom of the first fixing seat is pressed against the inner wall on one side of the first central through hole of the male plug rod, and the limiting portion of the limiting head is pressed against the inner wall on the other side of the first central through hole of the male plug rod. Under the action of the first elastic element, the head of the limiting head is exposed from the first radial through hole of the male plug rod; the female connector assembly includes a female plug sleeve provided with a second central through hole, and the female plug sleeve is provided with at least one second radial through hole that is connected with the second central through hole; the upper part of the male plug rod of the male plug assembly is inserted from the second central through hole of the female plug sleeve, so that the head of the limiting head of the male plug assembly is stuck in the second radial through hole of the female plug sleeve, thereby connecting the male plug assembly with the female connector assembly.

[0011] A second opening groove is provided on the limiting portion of the limiting head, and one end of the first elastic element is pressed against the bottom of the second opening groove of the limiting portion.

[0012] The outer surface of the head of the limiting head is a slope that is lower at the top and higher at the bottom.

[0013] The bevel periphery of the head of the limiting head is rounded.

[0014] There are two second radial through holes, and the two second radial through holes are 180 degrees apart.

[0015] There are two of each of the first fixing seat, limiting head, first elastic element and first radial through hole, and the two first radial through holes are at different heights; there are two pairs of the second radial through holes, a total of four, and each pair of two second radial through holes is located at the same height and the two second radial through holes of the pair differ by 180 degrees.

[0016] The female connector assembly also includes a second fixing seat, a second elastic element and a plug; a limiting boss is provided in the second center through hole of the female plug sleeve, a third opening groove is provided on the second fixing seat, the second fixing seat is located in the second center through hole of the female plug sleeve, the plug is fixed to the upper port of the second center through hole of the female plug sleeve, the second elastic element is located between the bottom of the third opening groove of the second fixing seat and the plug, and under the action of the second elastic element, the bottom of the second fixing seat contacts with the limiting boss of the second center through hole of the female plug sleeve.

[0017] The female plug sleeve is also provided with a third radial through hole connected to the second radial through hole, and the third radial through hole is an inclined radial through hole that is smaller at the bottom and larger at the top.

[0018] The third radial through hole is also provided with a long strip notch, which is connected to the second radial through hole.

[0019] A scoop net is also provided, comprising a net ring, a net bag fixed on the net ring and a scoop net rod; the net ring and the scoop net rod are connected together by using the above-mentioned quick connection device.

[0020] Compared with the prior art, the quick connection device and the scoop net of the utility model have the following beneficial effects:

[0021] 1. The utility model quick connection device comprises a male plug assembly and a female connector assembly, wherein the male plug assembly is provided with a movable limiting head, and the female plug sleeve of the female connector assembly is provided with at least one second radial through hole adapted to the limiting head, so that when the upper part of the male plug assembly is inserted from the second central through hole of the female plug sleeve of the female connector assembly, it can ensure that the head of the limiting head of the male plug assembly is stuck in the second radial through hole of the female plug sleeve, so that the male plug assembly and the female connector assembly are connected together; and if the male plug assembly and the female connector assembly are to be separated, it is only necessary to press the head of the limiting head inward with one hand, and then rotate the male plug rod of the male plug assembly with the other hand, so that the head of the limiting head is disengaged from the second radial through hole of the female plug sleeve, and the male plug rod can be rotated downward to separate the male plug assembly from the female connector assembly;

[0022] Second, the utility model also provides a third radial through hole and a long strip notch on the female plug sleeve of the female connector assembly, so that the male plug assembly and the female connector assembly can be separated very easily. You only need to hold the female plug sleeve with one hand and rotate the male plug rod upward with the other hand. The head of the limiting head can be easily screwed into the long strip notch and separated from the second radial through hole of the female plug sleeve. Then, the male plug rod can be rotated downward to separate the male plug assembly from the female connector assembly.

[0023] 3. The utility model has two first fixing seats, limiting heads, first elastic elements and first radial through holes. The two first radial through holes are at different heights. It is best that the two first radial through holes have different orientations, for example, the orientations of the two first radial through holes differ by degrees. There are two pairs of second radial through holes, a total of four. Each pair of two second radial through holes is located at the same height and the two second radial through holes of the pair differ by degrees. In this way, there are two connection and fixing points, so that the male plug assembly and the female connector assembly are fixed more securely.

[0024] In summary, the quick connection device of the utility model can quickly and detachably connect two objects together, for example, it can quickly fix the scoop net rod and the net ring of the scoop net together, and fix them firmly and not easily fall off, and it can also quickly separate the scoop net rod and the net ring of the scoop net. It has the advantages of simple structure, convenient operation, firm fixation and short operation time.

Brief Description of the Drawings

[0026] Figure 1 It is a schematic diagram of an axonometric projection of the first embodiment of the quick connection device of the utility model when assembled together;

[0027] Figure 2 is an axonometric projection schematic diagram of the first embodiment of the quick connection device after separation;

[0028] Figure 3 is an axonometric projection schematic diagram of the quick connection device embodiment 1 when assembled together with a portion of the upper portion cut away;

[0029] Figure 4 is a schematic diagram of an orthographic front view of the first embodiment of the quick connection device;

[0030] Figure 5 yes Figure 4 A schematic diagram of the AA section is shown;

[0031] Figure 6 yes Figure 4 A schematic diagram of a BB cross-section is shown;

[0032] Figure 7 is a schematic diagram of an axonometric projection of a female connector assembly after being exploded in the first embodiment of the quick connection device;

[0033] Figure 8 is a schematic cross-sectional view of an orthographic projection of the female connector assembly;

[0034] Fig. 9 is an axonometric projection schematic diagram of the female plug sleeve of the female connector assembly;

[0035] Fig.10 is a schematic diagram of an orthographic front view of the female plug sleeve;

[0036] Fig.11 yes Fig.10 A schematic diagram of the CC section is shown;

[0037] Fig.12 is an orthographic front cross-sectional schematic diagram of the second fixing seat of the female connector assembly;

[0038] Fig.13 is a schematic diagram of an axonometric projection of a male plug assembly after being exploded in the first embodiment of the quick connection device;

[0039] Fig.14 is an orthographic front cross-sectional schematic diagram of the male plug assembly;

[0040] Fig.15 is a schematic diagram of an axonometric projection of a male plug rod of the male plug assembly;

[0041] Fig.16 is a schematic diagram of an axonometric projection of a limiting head of the male plug assembly;

[0042] Fig.17 is a schematic left view of an orthographic projection of the limiting head;

[0043] Fig.18 is a schematic cross-sectional view of an orthographic left view of the limiting head;

[0044] Fig.19 is an axonometric projection schematic diagram of the first fixing seat of the male plug assembly;

[0045] Fig. 20 is a schematic cross-sectional view of the orthographic projection of the first fixing seat from the left;

[0046] Fig.21 is a schematic cross-sectional view of an orthographic projection of a second embodiment of the quick connection device;

[0047] Fig. 22 is an orthographic front cross-sectional schematic diagram of the female connector assembly of the second embodiment of the quick connection device;

[0048] Fig.23 is an orthographic front cross-sectional schematic diagram of the male plug assembly of the second embodiment of the quick connection device;

[0049] Fig.24 It is an axonometric projection schematic diagram of the utility model scoop net, with a partial cutaway view. [Specific implementation method]

[0051] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0052] See also Figures 1 to 20A quick connection device 1 is used to quickly and detachably connect two objects together, for example, a scoop rod and a net ring of a scoop net can be quickly and detachably connected together, comprising a male plug assembly 10 and a female connector assembly 20; the male plug assembly 10 comprises a male plug rod 11 with a first central through hole 111, a first fixing seat 12, a limiting head 13 and a first elastic element 14, the upper part of the male plug rod 11 is provided with a first radial through hole 112 intersecting the first central through hole 111, the first fixing seat 12 is provided with a first opening groove 121, the limiting head 13 and a first elastic element 14 The fixed head 13 includes a limiting portion 131 and a head 132 connected to the limiting portion 131. The first elastic element 14 is located in the first opening groove 121 of the first fixing seat 12. The tail end of the limiting portion 131 of the limiting head 13 is also located in the first opening groove 121 of the first fixing seat 12. The first elastic element 14 is located between the bottom of the first opening groove 121 and the limiting portion 131 of the limiting head 13. The first fixing seat 12, the limiting head 13 and the first elastic element 14 are located together at the first center through hole of the male plug rod 11. In the hole 111, the bottom of the first fixing seat 12 is pressed against the inner wall on one side of the first central through hole 111 of the male plug rod 11, and the limiting portion 131 of the limiting head 13 is pressed against the inner wall on the other side of the first central through hole 111 of the male plug rod 11. Under the action of the first elastic element 14, the head 132 of the limiting head 13 is exposed from the first radial through hole 112 of the male plug rod 11. Under the action of external force and the first elastic element 14, the limiting portion 131 of the limiting head 13 can move in the first opening groove 121 of the first fixing seat 12; The female connector assembly 20 includes a female plug sleeve 21 having a second central through hole 211, and the female plug sleeve 21 has at least one second radial through hole 212 intersecting the second central through hole 211; the upper portion of the male plug rod 11 of the male plug assembly 10 is inserted from the second central through hole 211 of the female plug sleeve 21, and can be rotated upward to insert so that the head 132 of the limiting head 13 of the male plug assembly 10 is stuck in the second radial through hole 212 of the female plug sleeve 21, thereby connecting the male plug assembly 10 with the female connector assembly 20. If the male plug assembly 10 is to be separated from the female connector assembly 20, it is only necessary to press the head 132 of the limiting head 13 inward with one hand, and then rotate the male plug rod 11 with the other hand to disengage the head 132 of the limiting head 13 from the second radial through hole 212 of the female plug sleeve 21, and then rotate the male plug rod 11 downward to separate the male plug assembly 10 from the female connector assembly 20.

[0053] See also Figure 2 and Figures 13 to 16The first radial through hole 112 of the male plug rod 11 is slightly larger than the head 132 of the limiting head 13, which can ensure that the head 132 of the limiting head 13 is exposed. The size of the first radial through hole 112 of the male plug rod 11 must also ensure that the limiting portion 131 of the limiting head 13 cannot extend.

[0054] See also Figure 1 , Figure 5 , Fig. 9 , Fig.16 and Fig.17 The second radial through hole 212 of the female plug sleeve 21 is slightly larger than the head 132 of the limiting head 13, which can ensure that the head 132 of the limiting head 13 is located in the second radial through hole 212 of the female plug sleeve 21. The size of the second radial through hole 212 of the female plug sleeve 21 should also ensure that the head 132 of the limiting head 13 cannot rotate, and it is best to just allow the head 132 of the limiting head 13 to be stuck therein. For the sake of aesthetics, the highest point of the head 132 of the limiting head 13 is preferably not higher than the outer circumferential surface of the female plug sleeve 21.

[0055] See also Fig.14 and Fig.18 In order to better position the first elastic element 14, a second opening groove 1311 is provided on the limiting portion 131 of the limiting head 13, and one end of the first elastic element 14 is pressed against the bottom of the second opening groove 1311 of the limiting portion 131.

[0056] See also Figure 1 , Figure 5 , Fig.14 and Figures 16 to 18 In order to facilitate insertion and unscrewing, the outer surface of the head 132 of the limiting head 13 is a slope 1321 that is lower at the top and higher at the bottom.

[0057] See also Figure 1 , Figure 5 , Fig.14 and Figures 16 to 18 In order to facilitate insertion and unscrewing, the bevel 1321 of the head 132 of the limiting head 13 is rounded with a circle of rounded corners 13211.

[0058] See also Fig.11 There are two second radial through holes 212, and the difference between the two second radial through holes 212 is 180 degrees, that is, the two second radial through holes 212 are correspondingly arranged on the female plug sleeve 21, which can save the time for the head 132 of the limiting head 13 of the male plug assembly 10 to be stuck in the second radial through hole 212 of the female plug sleeve 21, because after the male plug rod 11 of the male plug assembly 10 is inserted from the second center through hole 211 of the female plug sleeve 21, the rotation insertion angle will not be greater than 180, so the nearest second radial through hole 212 of the female plug sleeve 21 can be quickly found.

[0059] See also Figure 3 , Figure 5 , Figure 7 , Figure 8 and Fig.12 For the sake of aesthetics and positioning, the female connector assembly 20 further includes a second fixing seat 22, a second elastic element 23 and a plug 24; a limiting boss 2111 is provided in the second center through hole 211 of the female plug sleeve 21, a third opening groove 221 is provided on the second fixing seat 22, the second fixing seat 22 is located in the second center through hole 211 of the female plug sleeve 21, the plug 24 is fixed to the upper port of the second center through hole 211 of the female plug sleeve 21, the second elastic element 23 is located between the bottom of the third opening groove 221 of the second fixing seat 22 and the plug 24, under the action of the second elastic element 23, the bottom of the second fixing seat 22 and the second center through hole 211 of the female plug sleeve 21 11 is in contact with the limiting boss 2111, and under the action of external force and the second elastic element 23, the second fixing seat 22 can move in the second central through hole 211 between the limiting boss 2111 and the plug 24; in this way, it can be ensured that when the head 132 of the limiting head 13 of the male plug assembly 10 is stuck in the second radial through hole 212 of the female plug sleeve 21, the upward space of the top of the male plug rod 11 of the male plug assembly 10 is limited. Generally speaking, the top of the male plug rod 11 of the male plug assembly 10 is in contact with the bottom 132 of the second fixing seat 22 or the gap is very small; and when an external force causes the male plug rod 11 of the male plug assembly 10 to move upward, it can also ensure that the male plug rod 11 of the male plug assembly 10 has space to move upward.

[0060] See also Figures 1 to 5 and Figures 7 to 11 In order to smoothly separate the head 132 of the limiting head 13 from the second radial through hole 212 of the female plug sleeve 21, the female plug sleeve 21 is also provided with a third radial through hole 213 connected to the second radial through hole 212, and the third radial through hole 213 is an oblique radial through hole that is smaller at the bottom and larger at the top.

[0061] See also Figures 1 to 5 and Figures 7 to 11 In order to make the head 132 of the limiting head 13 and the second radial through hole 212 of the female plug sleeve 21 more smoothly disengage, a long strip notch 2131 is also provided on the third radial through hole 213, and the long strip notch 2131 is connected to the second radial through hole 212. Because of the long strip notch 2131, the head 132 of the limiting head 13 can be quickly screwed into the long strip notch 2131 and disengaged from the second radial through hole 212 of the female plug sleeve 21. The function of the long strip notch 2131 is similar to that of the backing groove.

[0062] See also Figures 1 to 20Because of the presence of the third radial through hole 213 and the long strip notch 2131, it is very easy to separate the male plug assembly 10 from the female connector assembly 20. You only need to hold the female plug sleeve 21 with one hand and use the other hand to rotate the male plug rod 11 upward. The head 132 of the limiting head 13 can be easily screwed into the long strip notch 2131 and disengaged from the second radial through hole 212 of the female plug sleeve 21. Then, rotate the male plug rod 11 downward to separate the male plug assembly 10 from the female connector assembly 20.

[0063] See also Figure 5 , Figure 7 and Fig.13 , the first elastic element 14 and the second elastic element 23 can be springs.

[0064] See also Figure 21 to Figure 23 In order to make the male plug assembly 10 and the female connector assembly 20 more securely fixed, there are two first fixing seats 12, limiting heads 13, first elastic elements 14 and first radial through holes 112, and the two first radial through holes 112 are located at different heights. It is best that the two first radial through holes 112 have different directions, for example, the directions of the two first radial through holes 112 differ by 180 degrees; there are two pairs of the second radial through holes 212, a total of four, and each pair of two second radial through holes 212 is located at the same height and the two second radial through holes 212 of the pair differ by 180 degrees; in this way, there are two connection and fixing points, so that the male plug assembly 10 and the female connector assembly 20 are more securely fixed.

[0065] See also Fig.24 A scoop net comprises a net ring 2, a net bag 3 fixed on the net ring 2 and a scoop net rod 4; the net ring 2 and the scoop net rod 4 are connected together by the above-mentioned quick connection device 1.

[0066] See also Fig.24 The male plug assembly 10 of the quick connection device 1 is fixed on the net circle 2, and the female connector assembly 20 of the quick connection device 1 is fixed on the scoop net rod 4. Of course, the female connector assembly 20 of the quick connection device 1 can also be fixed on the net circle 2, and the male plug assembly 10 of the quick connection device 1 can also be fixed on the scoop net rod 4.

[0067] The male plug assembly 10 and the female connector assembly 20 of the quick connection device 1 of the utility model are firmly fixed to each other, and the male plug assembly 10 and the female connector assembly 20 are also very easy to be separated from each other.

[0068] The above-mentioned embodiments only express the preferred implementation modes of the present utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present utility model. It should be pointed out that, for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the present utility model, and these all belong to the protection scope of the present utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the present utility model should belong to the coverage of the claims of the present utility model.

Claims

1. A quick connection device, characterized in that: The invention comprises a male plug assembly (10) and a female connector assembly (20); the male plug assembly (10) comprises a male plug rod (11) provided with a first central through hole (111), a first fixing seat (12), a limiting head (13) and a first elastic element (14); the upper part of the male plug rod (11) is provided with a first radial through hole (112) which is in communication with the first central through hole (111); the first fixing seat (12) is provided with a first opening groove (121); the limiting head (13) comprises a limiting portion (131) and a head portion (132) connected to the limiting portion (131); the first elastic element (14) is located in the first opening groove (121) of the first fixing seat (12); the tail end of the limiting portion (131) of the limiting head (13) is also located at the first opening groove (121) of the first fixing seat (12); an opening groove (121), the first elastic element (14) is located between the bottom of the first opening groove (121) and the limiting portion (131) of the limiting head (13), the first fixing seat (12), the limiting head (13) and the first elastic element (14) are located together in the first central through hole (111) of the male plug rod (11), the bottom of the first fixing seat (12) is pressed against the inner wall of one side of the first central through hole (111) of the male plug rod (11), the limiting portion (131) of the limiting head (13) is pressed against the inner wall of the other side of the first central through hole (111) of the male plug rod (11), and under the action of the first elastic element (14), the head (132) of the limiting head (13) is exposed from the first radial through hole (112) of the male plug rod (11); The female connector assembly (20) comprises a female plug sleeve (21) provided with a second central through hole (211); the female plug sleeve (21) is provided with at least one second radial through hole (212) intersecting the second central through hole (211); The upper portion of the male plug rod (11) of the male plug assembly (10) is inserted into the second central through hole (211) of the female plug sleeve (21), so that the head portion (132) of the limiting head (13) of the male plug assembly (10) is clamped in the second radial through hole (212) of the female plug sleeve (21), thereby connecting the male plug assembly (10) and the female connector assembly (20) together.

2. The quick connection device according to claim 1, characterized in that: A second opening groove (1311) is provided on the limiting portion (131) of the limiting head (13), and one end of the first elastic element (14) is pressed against the bottom of the second opening groove (1311) of the limiting portion (131).

3. The quick connection device according to claim 1, characterized in that: The outer surface of the head portion (132) of the limiting head (13) is a slope (1321) that is lower at the top and higher at the bottom.

4. The quick connection device according to claim 1, characterized in that: The inclined surface (1321) of the head (132) of the limiting head (13) has a rounded corner (13211) around its periphery.

5. The quick connection device according to claim 1, characterized in that: There are two second radial through holes (212), and the two second radial through holes (212) are 180 degrees apart.

6. The quick connection device according to claim 1, characterized in that: The first fixing seat (12), the limiting head (13), the first elastic element (14) and the first radial through hole (112) are each provided in pairs, and the two first radial through holes (112) are located at different heights; the second radial through holes (212) are provided in two pairs, a total of four, and each pair of two second radial through holes (212) are located at the same height and the two second radial through holes (212) of the pair differ by 180 degrees.

7. The quick connection device according to any one of claims 1 to 6, characterized in that: The female plug sleeve (21) is also provided with a third radial through hole (213) which is connected to the second radial through hole (212); the third radial through hole (213) is an oblique radial through hole which is smaller at the bottom and larger at the top.

8. The quick connection device according to claim 7, characterized in that: The third radial through hole (213) is also provided with a long strip-shaped notch (2131), and the long strip-shaped notch (2131) is connected to the second radial through hole (212).

9. The quick connection device according to claim 7, characterized in that: The female connector assembly (20) further comprises a second fixing seat (22), a second elastic element (23) and a plug (24); a limiting boss (2111) is provided in the second central through hole (211) of the female plug sleeve (21); a third opening groove (221) is provided on the second fixing seat (22); the second fixing seat (22) is located in the second central through hole (211) of the female plug sleeve (21); the plug (24) is fixed to the upper port of the second central through hole (211) of the female plug sleeve (21); the second elastic element (23) is located between the bottom of the third opening groove (221) of the second fixing seat (22) and the plug (24); under the action of the second elastic element (23), the bottom of the second fixing seat (22) contacts the limiting boss (2111) of the second central through hole (211) of the female plug sleeve (21).

10. A scoop net, comprising a net ring (2), a net bag (3) fixed on the net ring (2), and a scoop net rod (4); characterized in that: The net circle (2) and the scoop net rod (4) are connected together using the quick connection device described in any one of claims 1 to 9.

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