Switching valve, converter, sanitary fitting and use of a switching valve

Abstract

The present invention relates to a switching valve (2) including an input end (3) and at least one output end (4), the switching valve including a switching mechanism (8) in operative connection with an actuator (5), wherein an embedded part (9a) is formed, wherein the embedded part (9a) has a discharge part (10) in fluid communication between the switching mechanism (8) and the at least one output end (4), and the embedded part (9a) has a bypass channel (11) wherein the bypass channel (11) provides an additional interface (26).

Description

Technical Field

[0001] This invention relates to a switching valve comprising an input end and at least one output end, the switching valve including a switching mechanism in operative connection with an actuator. Such switching valves are widely used in practice.

[0002] The present invention also relates to a converter. Converters are well known in the prior art.

[0003] The present invention also relates to the application of a sealing ring. Such an application is known.

[0004] This invention also relates to a sanitary accessory. Sanitary accessories are well known in the prior art.

[0005] This invention also relates to the application of a switching valve. This is widely used in practice. Summary of the Invention

[0006] This invention is based on the objective of improving the performance characteristics of switching valves. This objective is achieved through the features of the independent claim. Advantageous design solutions are described in the dependent claims.

[0007] It should be noted that the features listed individually in the dependent claims can be combined with each other in any technically meaningful manner, and define other design options of the invention, provided that these combinations have the features of at least one independent claim. Furthermore, the features given in the claims are further refined and explained in the specification, wherein other preferred design options of the invention are shown.

[0008] To address the proposed task, the present invention provides the features of claim 1. Specifically, according to the present invention, in a switching valve of the type described at the beginning, to address the task, an embedded component is constructed, wherein the embedded component has a discharge portion establishing fluid communication between the switching mechanism and the at least one output end, and the embedded component has a bypass channel, particularly wherein the bypass channel provides an additional interface. Therefore, the operating characteristics of the switching valve can be improved.

[0009] Advantageous design options of the invention are described below, which can be used alone or in combination with features of other design options, and optionally together with features of claim 1.

[0010] In an advantageous design, a sealing mechanism can be configured to seal the interface in the use position. This ensures the advantageous operating principle of the switching valve.

[0011] Preferably, the switching valve has two outputs. In the operating position (in the installation direction of the switching valve), the two outputs are positioned above the input. Water is guided from the input, surrounding the switching mechanism, particularly the diaphragm switching mechanism, towards the outputs.

[0012] In an advantageous design, two sealing mechanisms can be configured to define an output section containing the at least one output terminal. This allows for good functionality of the switching valve.

[0013] In an advantageous design, the bypass channel can be configured to enter at or adjacent to the input terminal. This can improve the operating characteristics of the switching valve.

[0014] Preferably, the bypass channel is formed in the embedded component as an annular channel. The bypass channel may consist of one or more channels.

[0015] In an advantageous design, the bypass channel can be positioned outside of, and particularly spaced apart from, the at least one output terminal. This can improve the operating characteristics of the switching valve.

[0016] In an advantageous design, two sealing mechanisms can be configured to define an input section containing the input end. This allows for a functional seal for the fluid flow.

[0017] In an advantageous design, the additional interface can be spaced apart from the input terminal and / or additionally or alternatively from the output terminal. Preferably, the additional interface is located outside one or more of the input terminal sections and additionally or alternatively outside one or more of the output terminal sections. This allows for the achievement of good operating characteristics of the switching valve.

[0018] In an advantageous design, the embedded component can be positioned either loosely or fixedly embedded in the switching valve. "Loosely" here means that a small gap is formed between the embedded component and the valve body. "Fixedly" here means that no gap is formed between the embedded component and the valve body. This provides flexibility in the arrangement.

[0019] In an advantageous design, the switching mechanism can be configured as either a piston mechanism or a diaphragm switching mechanism. As a piston mechanism, a mechanism with a piston having a thickened portion that can selectively block the output end is described. As a diaphragm switching mechanism, a mechanism with a diaphragm that can selectively block the output end via a pushrod is described.

[0020] In an advantageous design, the sealing mechanism and the other two sealing mechanisms can be configured as O-rings on the valve body of the switching valve. This provides a sealing performance for the arrangement.

[0021] In an advantageous design, the cross-sectional area of ​​the bypass channel opening may be configured to match the cross-sectional area of ​​the input terminal opening and, alternatively, the cross-sectional area of ​​the output terminal opening. This matching may mean that the deviation in the cross-sectional area of ​​the opening is at most 25%.

[0022] In an advantageous design, the bypass channel can be configured to branch in the fluid communication between the input and the switching mechanism. This ensures good functionality of the switching valve.

[0023] In an advantageous design, the bypass channel may extend along the operating direction or along the switching valve insertion direction. Preferably, the bypass channel extends parallel to the operating direction or the switching valve insertion direction. The operating direction refers to the direction in which the actuator is operated. The switching valve insertion direction refers to the direction in which the switching valve is inserted into the sanitary fitting. This simplifies the mechanical construction of the embedded component.

[0024] In an advantageous design, the operating direction and the insertion direction of the switching valve can be aligned. This simplifies the mechanical construction of the switching valve.

[0025] In an advantageous design, the discharge section can be configured with a steering portion that passes through the sidewall of the bypass channel. The steering portion is elbow-shaped. This improves the flexibility of the switching valve.

[0026] In an advantageous design, the discharge section can be configured to be parallel to the bypass channel in one region and separate from the bypass channel throughout the entire region. This improves the functionality of the switching valve.

[0027] In an advantageous design, the switching valve can be configured as a converter. Preferably, the switching valve is configured as a switching valve. Therefore, the switching mechanism can switch between two outputs.

[0028] In an advantageous design, the input terminal and the at least one output terminal can be configured to define a vertically stacked plane. This simplifies installation in sanitary fittings.

[0029] In an advantageous design, the discharge section can be configured such that the switching mechanism, particularly the piston mechanism or the diaphragm switching mechanism, acts in contact with the wall. This ensures the functionality of the switching valve.

[0030] Preferably, the embedded component is made of plastic.

[0031] The embedded component has a valve seat, on which the valve rests in the operating position.

[0032] In an advantageous design, the actuator and the lever can be configured to be in an operative connection. This preserves the functionality of the actuator.

[0033] In an advantageous design, the push rod can be configured to have multiple thickened sections. Therefore, in the diaphragm switching mechanism, the flow channel can be blocked, and switching can be performed efficiently.

[0034] In an advantageous design, the switching mechanism can be configured to be operated or triggered within the manipulator via a ballpoint pen mechanism. This allows for a high level of user comfort.

[0035] In an advantageous design, the embedded component can be assembled into the switching valve as an assembly unit. This simplifies the installation of the embedded component into the switching valve.

[0036] To address the aforementioned task, according to the invention, features of parallel claim 19 are provided for the converter. Specifically, to address the aforementioned task, the invention proposes a converter of the type described at the beginning, wherein the converter has two input terminals separated from each other by a sealing element. Preferably, the sealing element is a sealing ring. This improves the flexibility of the device.

[0037] To address the aforementioned task, according to the invention, features of parallel claim 20 are provided for the application. Specifically, to address the aforementioned task, the invention proposes, for applications of the type described at the beginning, that the sealing ring pertains to a converter, wherein the converter is configured according to claim 19, and wherein the sealing ring is designed for separate supply to two switching mechanisms of the converter. Therefore, the flexibility of the converter can be further improved.

[0038] To address the aforementioned task, according to the present invention, the features of claim 21, which pertains to sanitary fittings, are provided. In particular, to address the aforementioned task, the present invention proposes, for sanitary fittings of the type described at the beginning, a switching valve having the aforementioned features. Therefore, the usability of the sanitary fitting can be improved.

[0039] To address the aforementioned task, according to the invention, the features of parallel claim 22 are provided for applications involving switching valves. In particular, to address the aforementioned task, the invention proposes, for applications of the type described at the beginning, that the switching valve is configured in a sanitary fitting according to one of the foregoing features. Preferably, the input end of the sanitary fitting is configured on or adjacent to a bypass channel.

[0040] The invention will now be further described with reference to a few embodiments, but is not limited to these few embodiments. Other variations and embodiments of the invention are obtained by combining features of one or more claims with each other and / or with one or more features of the aforementioned variations of the embodiments and / or the apparatus and application according to the invention. Attached Figure Description

[0041] in:

[0042] Figure 1 A sanitary fitting including a switching valve according to the invention is shown; and

[0043] Figure 2 A cross-section is shown through a sanitary fitting including a switching valve according to the invention; and

[0044] Figure 3 A cross-section is shown through the switching valve according to the invention; and

[0045] Figure 4 A cross-section through the embedded component is shown; and

[0046] Figure 5 A top view of the embedded component is shown; and

[0047] Figure 6 A bottom view of the embedded component is shown; and

[0048] Figure 7 A cross-section through the embedded component is shown; and

[0049] Figure 8 A further cross-section through the embedded component is shown; and

[0050] Figure 9 A perspective view of the embedded component is shown; and

[0051] Figure 10 Another perspective view of the embedded component is shown; and

[0052] Figure 11 Showing a cross-section through another embedded component; and

[0053] Figure 12 Showing through Figure 11 A cross-section of the other embedded component; and

[0054] Figure 13 Showing through Figure 11 Another cross-section of the other embedded component; and

[0055] Figure 14 Showing a cross-section through another sanitary fitting; and

[0056] Figure 15 Showing through Figure 14 The cross-section of plane A; and

[0057] Figure 16 Showing through Figure 14 The cross-section of plane B; and

[0058] Figure 17 Showing through Figure 14 The cross-section of plane C; and

[0059] Figure 18 Showing through Figure 14 The cross-section of plane D; and

[0060] Figure 19 Showing through Figure 14 The cross section of plane E.

[0061] In the following description of different embodiments of the invention, functionally consistent elements are given consistent reference numerals even in deviated constructions or moldings.

[0062] For better overview, not all reference numerals are used in the accompanying drawings, although the elements may be present in the drawings. However, the same reference numerals indicate functionally and / or structurally identical components and functional units. Detailed Implementation

[0063] Figure 1 A sanitary fitting 1 including a switching valve 2 according to the invention is shown. The switching valve 2 is installed in the base 22 of the sanitary fitting 1.

[0064] The sanitary accessory 1 has an input interface 3, which is located below and... Figure 1 Correspondingly, it is not visible in the middle. The sanitary accessory 1 also has two output interfaces 4, which are in Figure 1 As can be seen, the two output interfaces 4 are orthogonally arranged to the input interface 3.

[0065] Figure 2A cross-section of a sanitary fitting 1 including a switching valve 2 according to the invention is shown. The switching valve 2 has an actuator 5, which is operatively connected to a push rod 6. The push rod 6 has a plurality of thickened portions 7. The switching valve 2 has a switching mechanism 8, which in this embodiment is configured as a diaphragm switching mechanism 9. Alternatively, the switching mechanism 8 may be configured as a piston mechanism. The two output ports 4 are arranged orthogonally to the input port 3. "Orthogonal" means that they are configured at an angle between 85° and 95°. An insert 9a is formed below the switching mechanism 8. The insert 9a has a discharge portion 10, which establishes fluid communication between the switching mechanism 8 and one of the output ports 4. The insert 9a also has a bypass channel 11. The bypass channel 11 branches in the fluid communication between the input port 24 and the switching mechanism 8. The bypass channel 11 is annularly configured. The bypass channel 11 extends along, preferably parallel to, the operating direction 12 or the switching valve insertion direction 13. The operating direction 12 and the insertion direction 13 of the switching valve are consistent. The discharge portion 10 has a particularly elbow-shaped steering portion 14 that passes through the sidewall of the bypass channel 11. The discharge portion 10 is configured parallel to the bypass channel 11 in one region and separate from the bypass channel 11 throughout the entire region. The switching valve 2 is configured as a switching valve in this embodiment, which can switch between two output interfaces 4. The actuator 5 has a ballpoint pen mechanism that can improve user operating comfort. The embedded part 9a is fixedly embedded in the switching valve 2. "Fixed" means that there is no gap between the valve body 14 and the embedded part 9a. The embedded part 9a is made of plastic. A sealing mechanism 15 is configured to seal the interface 26 in the use position. Two sealing mechanisms 23 are configured to define an output section 16 containing at least one output end 25. The sealing mechanism 15 below is used for sealing both the interface 26 and the output end 25, and is indicated by reference numeral 23. Furthermore, two sealing mechanisms 23 are visible, defining an input section 27 that includes the input terminal 24. The additional interface 26 is spaced apart from the input terminal 24 and additionally or alternatively from the output terminal 25. Preferably, the interface 26 is located outside the input section 27 and additionally or alternatively outside the output section 16.

[0066] Figure 3 A cross-section of a switching valve 2 according to the invention is shown. The switching valve 2 has an input terminal 24 and two output terminals 25. An additional interface 26 is formed below the embedded member 9a. The additional interface 26 is provided via the bypass channel 11. The input terminal interface 3 and the two output terminal interfaces 4 are located in… Figure 3 The middle part is not visible. Two sealing mechanisms 23 are formed, defining an output section 16 containing at least one output end 25 and sealing the at least one output end 25 in the use position. The switching valve 2 functions as follows: water enters below through the additional interface 26 and extends towards the switching mechanism 8 via the bypass channel 11, which is configured as a diaphragm switching mechanism 9. Generally, there are two diaphragms, each belonging to one output end 25. If the push rod 6 blocks the lower diaphragm with one of its thickened portions, water cannot leave the switching valve 2 through the lower output end 25. The only possibility for water to leave the switching valve 2 is the upper diaphragm and the upper output end 25. In this case, the push rod 6 does not block the upper diaphragm, and therefore flow through the upper diaphragm is possible. Here, the cross-section of the bypass channel 11 is coordinated with the cross-section of the discharge section 10. "Coordinated" means that there is a maximum deviation of 25% between the cross-section of the discharge section 10 and the cross-section of the bypass channel 11. Additionally, two sealing mechanisms 23 are configured, which define an input section 27 including the input end 24.

[0067] Figure 4 A cross-section through the embedded member 9a is shown. The bypass channel 11 and the discharge portion 10 are visible in the embedded member 9a. The discharge portion 10 has an elbow-shaped deflector 14 that passes through the sidewall of the bypass channel 11. The bypass channel 11 can be one channel or multiple channels. The bypass channel 11 refers to a channel that branches in the fluid communication between the input terminal 24 and the switching mechanism 8.

[0068] Figure 5 The image shows a top view of the embedded component 9a. Figure 6 The image shows the embedded component 9a from below. Six tabs 17 are visible, which meet at a point in the center of the embedded component 9a. Figure 7 A cross-section through the embedded component 9a is shown. Figure 8 A further cross-section through the embedded member 9a is shown. Figure 7 and Figure 8 The discharge section 10 is visible in the image, and it passes through the side wall of the bypass channel 11. Figure 8 The patch 17 is also visible in the area below.

[0069] Figure 9A perspective view of the embedded component 9a is shown. Here, the bypass channel 11 has six separate channels arranged around the discharge portion 10. As mentioned above, the bypass channel 11 may have one or more channels, which are branched connections established between the input terminal 24 and the switching mechanism 8. In a specific embodiment, the bypass channel 11 has multiple channels, here six.

[0070] Figure 10 A further perspective view of the embedded member 9a is shown, in which a cross-section through the discharge portion 10 is shown. The discharge portion 10 has a deflection portion 14 that passes through the sidewall of the bypass channel 11. Figure 10 In the middle, the bypass channel 11 is also visible.

[0071] Figure 11 A cross-section through another embedded member 9a is shown. The embedded member 9a has a valve seat 16a on which the switching mechanism 8 (not shown here) rests. Next to the valve seat 16a, the bypass channel 11 is formed. The discharge section 10 is formed spaced apart from the bypass channel 11; in a particular embodiment, the discharge section does not have an elbow-shaped turning portion 14, but is instead T-shaped.

[0072] Figure 12 and Figure 13 Other cross-sections are shown through the embedded component 9a. Figure 12 Here is a cross-section through the T-shaped discharge section 10; Figure 13 Here is with Figure 12 The cross-section is a right-angled cross-section. In Figure 13 In the center, the bypass channel 11 is visible, and the bypass channel consists of multiple channels. In the center, the discharge section 10 is visible.

[0073] Figure 14A cross-section through another sanitary fitting 1 is shown. The sanitary fitting 1 has a switching valve 2. The switching valve 2 is configured here as a converter 18. The converter 18 has three input interfaces 3, 19, and 21. A sealing ring 20 is provided between input interfaces 3 and 19, enabling separate supply to the two switching mechanisms 8 of the converter 18. Above the third input interface 21, the insert 9a is visible, having a discharge portion 10 including a deflector 14; additionally, the insert 9a has a bypass channel 11. As explained above, the bypass channel 11 may consist of one or more channels. The two input interfaces 3 and 19 are configured orthogonally to the operating direction 12 and the switching valve insertion direction 13. The third input interface 21 is configured along the operating direction 12 and the switching valve insertion direction 13. The output interface of the switching valve 2 is indicated by reference numeral 4 and is configured orthogonally to the operating direction 12 and the switching valve insertion direction 13. The converter 18 has an actuator 5, which is operatively connected to a push rod 6. The push rod 6 has a thickened portion 7, which can work with a switching mechanism 8 to selectively switch the output port 4. In this specific embodiment, the switching mechanism 8 is configured as a diaphragm switching mechanism 9. Alternatively, the switching mechanism 8 can be configured as a piston mechanism. The embedded member 9a is seamlessly embedded in the switching valve 2. The switching mechanism 8 has two diaphragms, which can respectively allow flow to one of the output ports 4 depending on the switching position. The actuator 5 has a ballpoint pen mechanism, which can improve the operating comfort of the converter 18. The embedded member 9a has a sealing ring, which can seal the embedded member 9a to prevent flow through. The embedded member 9a is preferably made of plastic, which can reduce manufacturing costs. The embedded member 9a can communicate between the switching mechanism 8 and the output port 4 through the discharge portion 10. The discharge portion 10 has a deflector 14, which passes through the sidewall of the bypass channel 11. The embedded component 9a also has a bypass channel 11, which may consist of one or more channels.

[0074] The letters A through E represent planes through which sections are cut, and these planes are in... Figures 15 to 19 As shown in the image. Figure 15 Through Figure 14 A cross-section of plane A. Figure 15 The output end 4 and the push rod 6 can be seen in the middle. Figure 16 Through Figure 14 The cross-section of plane B. Figure 16In the middle, the switching mechanism 8 can be seen, and the switching mechanism is configured as a diaphragm switching mechanism 9. The first input terminal 3 can be seen on the right side. Figure 17 Through Figure 14 A cross-section of plane C. Figure 17 The switching mechanism 8 is visible, and the switching mechanism is configured as a diaphragm switching mechanism 9. Additionally, the second input interface 19 is also visible. Figure 18 Showing through Figure 14 A cross-section of plane D. Here, the bypass channel 11 is visible, and the bypass channel consists of multiple channels. Additionally, the discharge section 10 is visible, and the discharge section has a deflection section 14 that opens into the output terminal interface 4. Figure 19 Showing through Figure 14 The cross-section of plane E. Figure 19 In the image, the connector 17 is visible, and the connectors meet at a point in the center. Additionally, the third input interface 21 is also visible.

[0075] In another embodiment, the input interface 21 is closed.

[0076] In another embodiment, the base 22 does not contact the sealing ring 20, thus allowing the input interfaces 3 and 19 to communicate with each other. Therefore, when both switching mechanisms 8 are to be supplied simultaneously, one of the input interfaces 2 and 19 can be closed. Input interface 21 can also be closed.

[0077] In another embodiment, the substrate 22 contacts the sealing ring 20. The input interface 19 is closed, and separate supply to the switching mechanism 8 is achieved through the input interfaces 3 and 21.

[0078] In a switching valve 2 including an input terminal 24 and at least one output terminal 25, the switching valve includes a switching mechanism 8 in operative connection with an actuator 5, wherein an embedded member 9a is provided, wherein the embedded member 9a has a discharge portion 10 that establishes fluid communication between the switching mechanism 8 and the at least one output terminal 25, and the embedded member 9a has a bypass channel 11 that provides an additional interface 26.

[0079] List of reference numerals

[0080] 1 Sanitary accessories

[0081] 2 Switching valve

[0082] 3 (First) Input Interface

[0083] 4 Output Interfaces

[0084] 5 controllers

[0085] 6 pushers

[0086] 7. One bolded section, multiple bolded sections

[0087] 8 Switching Mechanism

[0088] 9. Diaphragm switching mechanism

[0089] 9a Embedded Components

[0090] 10 Discharge Section

[0091] 11 Bypass Channels

[0092] 12 steering

[0093] 13. Switch valve installation direction

[0094] 14 Steering Unit

[0095] 15 Sealing Mechanism

[0096] 16 output sections

[0097] 16a valve seat

[0098] 17. One splice, multiple splices

[0099] 18 converter

[0100] 19 (Second) Input Interface

[0101] 20 sealing rings

[0102] 21 (Third) Input Interface

[0103] 22 matrix

[0104] 23 Sealing mechanism

[0105] 24 input terminals

[0106] 25 Output Terminal

[0107] 26. Other interfaces

[0108] 27 Input Section

Claims

1. A switching valve (2) comprising an input end (24) and at least one output end (25), the switching valve comprising a switching mechanism (8) in operative connection with an actuator (5), characterized in that, The embedded component (9a) is configured to have a discharge portion (10) which establishes fluid communication between the switching mechanism (8) and the at least one output terminal (25), and the embedded component (9a) has a bypass channel (11), in particular the bypass channel provides an additional interface (26).

2. The switching valve (2) according to claim 1, characterized in that, A sealing mechanism (15) is formed, which seals the interface (26) in the use position.

3. The switching valve (2) according to any one of the preceding claims, characterized in that, Two sealing mechanisms (23) are formed, the sealing mechanisms defining an output section (16) including the at least one output end (25).

4. The switching valve (2) according to any one of the preceding claims, characterized in that, The bypass channel (11) is connected in or adjacent to the input terminal (24).

5. The switching valve (2) according to any one of the preceding claims, characterized in that, The bypass channel (11) is located outside the at least one output terminal (25).

6. The switching valve (2) according to any one of the preceding claims, characterized in that, Two sealing mechanisms (23) are formed, which define an input section (27) including the at least one input (24).

7. The switching valve (2) according to any one of the preceding claims, characterized in that, The additional interface (26) is spaced apart from the input (24) and / or the output (25), especially outside the input section (27) and / or the output section (16).

8. The switching valve (2) according to any one of the preceding claims, characterized in that, The embedded component (9a) is loosely, especially with a gap, or fixedly, especially without a gap, embedded in the switching valve (2).

9. The switching valve (2) according to any one of the preceding claims, characterized in that, The switching mechanism (8) is a piston mechanism or a diaphragm switching mechanism (9).

10. The switching valve (2) according to any one of the preceding claims, characterized in that, The sealing mechanism (15) and the other two sealing mechanisms (23) are formed as O-rings on the valve body of the switching valve (2).

11. The switching valve (2) according to any one of the preceding claims, characterized in that, The cross-sectional area of ​​the bypass channel (11) is coordinated with the cross-sectional area of ​​the input terminal (24) and / or with the cross-sectional area of ​​the output terminal (25).

12. The switching valve (2) according to any one of the preceding claims, characterized in that, The bypass channel (11) branches in the fluid communication between the input end (24) and the switching mechanism (8).

13. The switching valve (2) according to any one of the preceding claims, characterized in that, The bypass channel (11) extends along, in particular parallel to, the operating direction (12) or the valve insertion direction (13).

14. The switching valve (2) according to any one of the preceding claims, characterized in that, The operating direction (12) and the valve insertion direction (13) are the same.

15. The switching valve (2) according to any one of the preceding claims, characterized in that, The discharge section (10) has a turning section (14) that passes through the side wall of the bypass channel (11).

16. The switching valve (2) according to any one of the preceding claims, characterized in that, The discharge section (10) is configured to be parallel to the bypass channel (11) in one region and separate from the bypass channel (11) throughout the region.

17. The switching valve (2) according to any one of the preceding claims, characterized in that, The switching valve (2) is configured as a converter, and more particularly as a switching valve.

18. The switching valve (2) according to any one of the preceding claims, characterized in that, The input terminal (24) and the at least one output terminal (25) define a plane that is stacked vertically.

19. A converter (18) comprising two input terminals (24) separated from each other by a sealing element, in particular a sealing ring, wherein the converter (18) is configured as a switching valve (2) according to any one of the preceding claims.

20. The application of the sealing ring (20) of the converter (18) according to claim 19 for separate supply to the two switching mechanisms (8) of the converter (18).

21. A sanitary fitting (1), said sanitary fitting comprising a switching valve (2) according to any one of claims 1 to 18.

22. The application of the switching valve (2) according to any one of claims 1 to 16 in a sanitary fitting (1), particularly wherein the input end (3) of the sanitary fitting (1) is configured to be adjacent to the bypass channel (11).

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