Faucet

Abstract

To provide a faucet that can connect a rotary operation member in a manner that suppresses rattle to the operation member.SOLUTION: A faucet 1 has a rotary operation lever 3 and a connecting fitting 5 connected to the operation lever 3 so as to receive a transmitted operation force. The faucet 1 has a fitting shaft portion 3B extending axially from the operation lever 3, and radial holes B3, D1 formed in the fitting shaft portion 3B and the connecting fitting 5. The fitting shaft portion 3B is fitted axially to the connecting fitting 5 so as to be rotatable relative thereto. Each of the holes B3, D1 forms insertion holes H that communicate with each other so as to open outward in a radial direction when the fitted fitting shaft portion 3B is aligned in a rotational direction. The faucet 1 further has a pin 6 inserted radially across each of the holes B3 and D1. The faucet 1 also has a fastening nut 7 threaded onto the connecting fitting 5 and capable of being fastened axially relative to the fitting shaft portion 3B.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a faucet, and more particularly to a faucet having a rotary operating member and a connecting member that is connected to the operating member so as to receive an operating force. [Background technology]

[0002] Patent Document 1 discloses a faucet in which a rotary handle is connected to an operating shaft (operating member) so as to be capable of transmitting power. Specifically, a pin is inserted laterally into the operating shaft so as to protrude radially outward. Furthermore, the handle is inserted axially into the operating shaft with the pin inserted.

[0003] The handle has an L-shaped engagement groove that receives the pin in the axial direction and then engages with it by rotating the handle, drawing the pin in the rotational direction and preventing it from slipping out in the axial direction.After the handle is inserted into the operating shaft as described above, a fitting member that fits serrations into both the handle and the operating shaft is inserted into the center of the handle, and the handle and the operating shaft are fitted together. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 4-128584 Summary of the Invention [Problem to be solved by the invention]

[0005] In the configuration described in Patent Document 1, there is room for further improvement, as the handle may rattle in the axial direction relative to the operating shaft due to gaps formed between the handle and the pin and / or between the operating shaft and the pin. Therefore, the present invention provides a faucet that can connect a rotary operating member to the operating member in a way that suppresses rattle. [Means for solving the problem]

[0006] In order to solve the above problems, the faucet of the present invention takes the following measures.

[0007] In other words, the first invention of the present invention is a faucet having a rotary operating member and a connecting member connected to the operating member so that an operating force can be transmitted to the operating member, and having an engaging shaft portion extending axially from the operating member and engaging axially so as to be rotatable relative to the connecting member, radial holes formed in the engaging shaft portion and the connecting member, each of the holes forming insertion holes that communicate with each other so that they open radially outward as the engaged engaging shaft portion is aligned in the rotational direction, a pin inserted radially across each of the holes, and a fastening nut threaded onto one of the engaging shaft portion and the connecting member and capable of axially tightening the other.

[0008] According to the first aspect of the present invention, the fitting shaft is connected to the connecting member in a state where it is integral with the connecting member in both the rotational and axial directions by a pin inserted laterally into the fitting portion between the fitting shaft and the connecting member. Furthermore, in addition to this connection, by tightening a fastening nut threaded onto one of the fitting shaft and the connecting member to the other, it is possible to suppress rattle of the fitting shaft relative to the connecting member in each of the axial, radial, and rotational directions.

[0009] The second invention of the present invention is a faucet according to the first invention, wherein each of the holes is formed so as to penetrate radially through the connecting member and the mating shaft, and the pin is inserted so as to penetrate through each of the holes.

[0010] According to the second aspect of the present invention, the axial pressure applied between the connecting member and the fitting shaft portion via the pin due to the tightening force of the fastening nut is balanced so as not to be biased to one side in the radial direction, thereby enabling the connecting member to be connected to the fitting shaft portion in a state where rattle is more appropriately suppressed.

[0011] A third invention of the present invention is a faucet according to the first or second invention, wherein the fastening nut has a first covering portion that covers the insertion hole from the radial outside as the fastening nut is tightened to the other.

[0012] According to the third aspect of the present invention, the configuration of the fastening nut can be utilized to rationally prevent the pin from slipping out of the insertion hole and to provide a covering for the outside.

[0013] The fourth invention of the present invention is a faucet according to the first or second invention, which has a second cover portion that covers from the outside a constricted portion formed on the outer periphery of one of the fastening nuts into which the fastening nut threads as the fastening nut is tightened onto the other, allowing the fastening nut to be loosely fitted before tightening.

[0014] According to the fourth aspect of the present invention, the configuration of the fastening nut can be used to rationally cover the constricted portion, which allows the female thread to be loosely fitted before fastening, from the outside.

[0015] The fifth invention of the present invention is a faucet according to the first or second invention, wherein the connecting member has a connecting cylindrical portion extending cylindrically in the axial direction, the fitting shaft has a cylindrical outer fitting cylindrical portion that is fitted into the connecting cylindrical portion from the outside of the cylinder, and an inner fitting portion that extends axially longer than the outer fitting cylindrical portion and is fitted into the cylinder of the connecting cylindrical portion, the pin is inserted into each of the holes formed in the connecting cylindrical portion and the inner fitting portion, and the fastening nut is screwed onto the connecting cylindrical portion from the outside of the cylinder and is tightened axially against the cylindrical end face of the outer fitting cylindrical portion.

[0016] According to the fifth invention, a configuration can be realized with a relatively simple structure in which the engaging shaft portion of the operating member is engaged with the connecting member, a pin is inserted between them from the outside in the radial direction, and the fastening nut is tightened to suppress play.

[0017] A sixth aspect of the present invention is the faucet according to the fifth aspect, wherein the fastening nut has an outer circumferential surface of the nut that is flush with the outer circumferential surface of the outer fitting cylindrical portion.

[0018] According to the sixth aspect of the present invention, the fastening nut can be provided in a good-looking shape that has a sense of unity and forms an outer circumferential nut surface that is continuous with the cylindrical outer circumferential surface of the fitting shaft portion. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view showing a schematic configuration of a faucet according to a first embodiment. [Figure 2] FIG. 2 is an exploded perspective view showing the operation member detached from the connection member. [Figure 3] FIG. 3 is an exploded perspective view showing a state in which the connecting member is connected to the plug rod from FIG. 2. [Figure 4] FIG. 4 is a partially cross-sectional perspective view of FIG. 3 taken along a vertical plane passing through the central axis. [Figure 5] FIG. 5 is a cross-sectional view corresponding to FIG. 4. [Figure 6] FIG. 10 is a cross-sectional view showing a state in which the operating member is fitted into the connecting member. [Figure 7] 10 is a cross-sectional view showing a state in which a pin is inserted laterally into the operation member and the connection member. FIG. [Figure 8] FIG. 10 is a cross-sectional view showing a state in which the fastening nut is tightened. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0021] First Embodiment (Outline of faucet 1) First, the configuration of a faucet 1 according to a first embodiment of the present invention will be described with reference to Figures 1 to 8. In the following description, when directions such as front, back, top, bottom, left, and right are indicated, they refer to the directions shown in each figure.

[0022] The directions shown in each figure are those seen by a user standing in front of the faucet 1. In the following description, when no specific reference figure is shown or when no reference figure has a corresponding symbol, reference will be made to any of Figures 1 to 8 as appropriate.

[0023] As shown in Figure 1, the faucet 1 according to this embodiment is configured as a faucet fitting installed in a bathroom vanity. Specifically, the faucet 1 is configured as a single-lever mixer faucet that can adjust the hot and cold water mixing ratio and switch between water discharge and stop by operating an operating lever 3 attached to the top of the faucet body 2.

[0024] The adjustment of the hot and cold water mixing ratio and the switching between water on and off by operating this operating lever 3 are performed by a cartridge 4 incorporated inside the faucet body 2. As shown in Figure 2, the cartridge 4 has a plug rod 4A at its top as an operating shaft. The plug rod 4A is attached integrally to the operating lever 3 via a cylindrical connecting fitting 5, which will be described later.

[0025] The cartridge 4 is moved to adjust the mixture ratio of hot and cold water supplied therein and to switch between discharging and stopping water to the outside by rotating the tap rod 4A left and right and forward and backward by operating the operating lever 3. The configuration for adjusting the mixture ratio of hot and cold water and switching between discharging and stopping water by the cartridge 4 is the same as the publicly known configuration disclosed in documents such as JP 2020-46067 A. Therefore, a detailed description of the basic configuration of the cartridge 4 will be omitted.

[0026] The faucet 1 has a cylindrical connector fitting 5 connected to the top of the faucet rod 4A. The connector fitting 5 functions as an intermediate member that mediates the connection between the faucet rod 4A and the operating lever 3. Here, the operating lever 3 corresponds to the "operating member" of the present invention. The connector fitting 5 corresponds to the "connecting member" of the present invention. The connector fitting 5 is connected to the faucet rod 4A as follows.

[0027] That is, as shown in Figures 3 to 5, first, the connector fitting 5 is inserted so as to cover the plug rod 4A from above in the figure. As a result, as shown in Figures 4 and 5, the annular seat portion 5A that protrudes into the cylindrical part of the connector fitting 5 is set in a state in which it abuts the plug rod 4A from above in the figure. Next, the fastening bolt 8 is inserted into the cylindrical part of the connector fitting 5 from above in the figure and fastened into the threaded hole A1 drilled in the center of the plug rod 4A. In this way, the connector fitting 5 is integrally connected to the plug rod 4A.

[0028] The plug rod 4A has a square rod-like shape extending in the axial direction. The lower cylindrical interior of the connector 5, which is inserted into the plug rod 4A, is formed with a square hole shape that fits into the square rod shape of the plug rod 4A. Therefore, by inserting the connector 5 into the plug rod 4A and fastening it with the fastening bolt 8, the connector 5 can be assembled to the plug rod 4A while being aligned in the correct assembly position.

[0029] The operating lever 3 is then integrally connected to this connecting fitting 5 by inserting the pin 6 laterally as follows. That is, as shown in Figures 3 to 5, the operating lever 3 is configured such that the fitting shaft 3B, which extends downward in the figure and is the base end of the gripping portion 3A that extends like a rod in the vertical direction in the figure, is inserted into the connecting fitting 5 from above in the figure and connected. Here, the connecting fitting 5 corresponds to the "one side" of the present invention. Also, the fitting shaft 3B corresponds to the "other side" of the present invention.

[0030] Specifically, the fitting shaft portion 3B has a double-extending inner and outer shape, including an outer fitting tubular portion B1 that extends cylindrically downward in the figure, and an inner fitting portion B2 that extends concentrically downward within the outer fitting tubular portion B1. The inner fitting portion B2 has a solid cylindrical shape with a solid interior. The inner fitting portion B2 extends downward in the figure further than the outer fitting tubular portion B1.

[0031] 4 and 5, the inner fitting portion B2 has a round hole portion B3 formed in an axially intermediate portion extending downward from the outer fitting cylindrical portion B1 in the drawing. The round hole portion B3 penetrates the inner fitting portion B2 so as to extend in a straight line in the radial direction through the axial center. This hole portion B3 functions as a part of an insertion hole H into which a round rod-shaped pin 6 (described later) can be inserted so as to penetrate from the radial outside.

[0032] The connector fitting 5 has a cylindrical connector portion 5D that extends upward in the figure from the seat portion 5A described above. The inner diameter of the connector portion 5D is set to a size that allows the inner fitting portion B2 described above to be gently fitted into it from above in the figure.

[0033] The connecting cylindrical portion 5D has an outer diameter that allows the outer fitting cylindrical portion B1 to be gently fitted in from above as shown in the figure. A round hole D1 is formed in the connecting cylindrical portion 5D at an axially intermediate portion that extends above the seat portion 5A as shown in the figure, and extends radially through the connecting cylindrical portion 5D in a straight line in the radial direction through the axial center.

[0034] This hole portion D1 also functions as a part of the insertion hole H into which a round bar-shaped pin 6, which will be described later, can be inserted so as to penetrate from the outside in the radial direction. The hole portion D1 has a round hole shape with approximately the same hole diameter as the hole portion B3 of the inner fitting portion B2 described above.

[0035] The fitting shaft 3B is inserted into the connecting fitting 5 from above as shown in the figure and connected as follows: First, the inner fitting portion B2 of the fitting shaft 3B, which extends downward as shown in the figure, is inserted into the cylindrical portion of the connecting fitting 5 from above as shown in the figure. This causes the inner fitting portion B2 to fit loosely into the cylindrical portion of the connecting fitting 5, as shown in Figure 6.

[0036] Then, the inner fitting portion B2 is further inserted into the cylindrical portion of the connecting fitting 5, and then the outer fitting cylindrical portion B1 is loosely fitted from the outside of the cylinder to the connecting fitting 5. Through this fitting, the fitting shaft portion 3B is assembled to the connecting fitting 5 in a state where it can rotate around an axial center that is a common axis between them.

[0037] The fitting shaft 3B is axially inserted into the connecting fitting 5 up to a bottoming position where the upper cylindrical end face of the connecting cylindrical portion 5D in the figure abuts against the end face of the valley between the outer fitting cylindrical portion B1 and the inner fitting portion B2. This insertion sets the hole B3 formed in the fitting shaft 3B in a state where its axial arrangement matches that of the hole D1 formed in the connecting cylindrical portion 5D.

[0038] Next, the fitting shaft 3B is rotated around the axis relative to the connecting fitting 5 to align the rotational positions of the holes B3 and D1. This alignment causes the holes B3 and D1 to communicate with each other so that they extend radially in a straight line, forming insertion holes H that open radially outward (see FIG. 6).

[0039] The position where the radial and axial positions of the holes B3 and D1 coincide with each other is the correct assembly position of the operating lever 3 with respect to the plug rod 4A. Next, as shown in Figure 7, the pin 6 is inserted from the radial outside into the insertion hole H formed by the holes B3 and D1.

[0040] The pin 6 has a round bar shape with a length that is longer than the diameter of the inner fitting portion B2 of the fitting shaft portion 3B and slightly shorter than the outer diameter of the connecting cylindrical portion 5D of the connecting fitting 5. More specifically, the pin 6 has a round bar shape with a diameter that is slightly smaller than the diameter of each of the hole portions B3, D1 and is substantially the same diameter.

[0041] Therefore, by inserting the pin 6 into each of the holes B3, D1 from the outside in the radial direction, the pin 6 can be loosely fitted (loosely fitted) in a state in which it penetrates radially across each of the holes B3, D1. By inserting the pin 6 in this manner, the fitting shaft 3B is prevented from rotating with respect to the connecting fitting 5 and is fixed in a state in which it is prevented from coming off in the axial direction.

[0042] Next, as shown in Figure 8, the cylindrical fastening nut 7 attached to the outer periphery of the connecting fitting 5 is tightened upward in the figure to fasten it to the cylindrical end face of the outer fitting cylindrical portion B1 of the fitting shaft portion 3B. This fixes the fitting shaft portion 3B to the connecting fitting 5 without rattling in the axial, radial, or rotational directions.

[0043] 4 and 5, the fastening nut 7 has a configuration in which an internal thread 7C is formed only in an upper portion of the tube. The fastening nut 7 has an extension portion 7D that extends concentrically cylindrically downward in the figure from the upper portion where the internal thread 7C is formed.

[0044] The fastening nut 7 is formed in a cylindrical shape such that the outer diameter of the tube, including the extension portion 7D, is approximately the same as the outer diameter of the outer fitting tube portion B1 of the fitting shaft portion 3B. A recess (not shown) is formed on the outer peripheral surface of the fastening nut 7 for fitting a tightening tool therein. Note that the fastening nut 7 may have the outer peripheral surface shape of a hexagonal nut, in which at least a portion of the outer peripheral surface is hexagonal.

[0045] The female thread 7C of the fastening nut 7 is formed in a thread shape that can be threadedly engaged with the male thread D2 formed on the connecting cylindrical portion 5D of the connecting fitting 5. The male thread D2 of the connecting fitting 5 is formed on the outer circumferential surface of the tube at a location where it overlaps with the hole D1 of the connecting cylindrical portion 5D in the axial direction. A ring-shaped recessed constricted portion D3 is formed on the outer circumferential surface of the tube below the male thread D2 of the connecting cylindrical portion 5D. The constricted portion D3 is formed adjacent to the male thread D2 so as to face from below the starting end (lower end in the figure) of the thread of the male thread D2 of the connecting cylindrical portion 5D.

[0046] The cylindrical inner diameter of the extension 7D of the fastening nut 7 is slightly larger than the cylindrical outer diameter of the connecting cylindrical portion 5D of the connecting fitting 5. As a result, the fastening nut 7 is configured so that the female thread 7C can be loosely fitted (fitted with play) into the constricted portion D3 by threading the female thread 7C into the male thread D2 from above in the figure and moving it up to the constricted portion D3.

[0047] When the female thread 7C is loosely fitted into the constricted portion D3, the fastening nut 7 is positioned lower in the figure than the hole D1 of the connecting fitting 5 and does not engage with the hole D1. Therefore, from this state, as shown in Figure 6, the fitting shaft 3B can be inserted into the connecting cylindrical portion 5D and assembled in an aligned state while the respective holes B3 and D1 are visually confirmed from the outside.

[0048] After the above assembly, as shown in Fig. 7, a pin 6 can be inserted laterally into each of the holes B3 and D1. Thereafter, as shown in Fig. 8, the fastening nut 7 is lifted from the constricted portion D3, and the female thread 7C is threaded onto the male thread D2 and tightened upward in the figure. As a result, the fastening nut 7 is fastened so as to be pressed against the cylindrical end surface of the outer fitting cylindrical portion B1 of the fitting shaft portion 3B from below in the figure.

[0049] This tightening causes the portion of the fastening nut 7 on which the female thread 7C is formed to cover the hole D1 of the connecting fitting 5 from the radial outside. As a result, the fastening nut 7 prevents the pin 6 from slipping out radially from the insertion hole H. The fastening nut 7 also covers the hole D1 so that it cannot be seen from the outside. Here, the female thread 7C of the fastening nut 7 corresponds to the "first cover" of the present invention.

[0050] Furthermore, as a result of the tightening, the fastening nut 7 is fitted with a cylindrical extension 7D extending downward from the female thread 7C in the figure, which covers the entire constricted portion D3 of the connecting cylindrical portion 5D. Specifically, as a result of the tightening, the fastening nut 7 is fitted with its cylindrical outer surface flush with the outer surface of the fitting shaft portion 3B.

[0051] As a result, the fastening nut 7 has an outer peripheral surface that is flush with the outer peripheral surface of the fitting shaft 3B, thereby covering the constricted portion D3 of the connecting fitting 5 in an attractive manner. Here, the extension 7D of the fastening nut 7 corresponds to the "second cover" of the present invention.

[0052] By tightening the fastening nut 7, the axial pressing force applied between the connecting cylindrical portion 5D and the inner fitting portion B2 via the pin 6 is balanced so that it is not biased to one side in the radial direction. Specifically, the axial pressing force caused by tightening the fastening nut 7 is applied evenly between the connecting cylindrical portion 5D and the inner fitting portion B2, through which one end of the pin 6 passes, and between the connecting cylindrical portion 5D and the inner fitting portion B2, through which the other end of the pin 6 passes. As a result, the fitting shaft portion 3B can be connected to the connecting fitting 5 in a state where rattle in all directions is appropriately suppressed.

[0053] To summarize the above, the faucet 1 according to the first embodiment has the following configuration: Note that the reference numerals in parentheses below correspond to the respective components shown in the above embodiment.

[0054] That is, the faucet (1) has a rotary operating member (3) and a connecting member (5) connected to the operating member (3) so as to receive an operating force. The faucet (1) has a fitting shaft (3B) extending axially from the operating member (3), and radial holes (B3, D1) formed in the fitting shaft (3B) and the connecting member (5). The fitting shaft (3B) is fitted axially so as to be rotatable relative to the connecting member (5). The holes (B3, D1) form insertion holes (H) that communicate with each other and open radially outward when the fitted fitting shaft (3B) is aligned in the rotational direction.

[0055] The faucet 1 further has a pin 6 inserted radially across each hole B3, D1. The faucet 1 also has a fastening nut 7 that is threaded onto one of the fitting shaft 3B and the connecting member 5 and can be axially tightened relative to the other fitting shaft 3B.

[0056] According to the above configuration, the pin 6 is inserted laterally into the mating portion between the mating shaft 3B and the connecting member 5, and thereby the mating shaft 3B is connected to the connecting member 5 in a state where the mating shaft 3B is integral with the connecting member 5 in both the rotational and axial directions. In addition to this connection, by tightening the fastening nut 7 threaded onto one of the mating shaft 3B and the connecting member 5 to the other 3B, it is possible to suppress rattle of the mating shaft 3B relative to the connecting member 5 in the axial, radial, and rotational directions.

[0057] Furthermore, each hole (D1, B3) is formed to penetrate radially through the connecting member (5) and the fitting shaft (3B). A pin (6) is inserted to penetrate each hole (D1, B3). With this configuration, the axial pressing force applied between the connecting member (5) and the fitting shaft (3B) via the pin (6) due to the tightening force of the fastening nut (7) is balanced so as not to be biased to one side in the radial direction. As a result, the connecting member (5) can be connected to the fitting shaft (3B) in a state where rattle is more appropriately suppressed.

[0058] The fastening nut (7) also has a first cover portion (7C) that covers the insertion hole (H) from the radial outside as the fastening nut (7) is tightened to the other part (3B). According to the above configuration, the configuration of the fastening nut (7) can be used to rationally prevent the pin (6) from slipping out of the insertion hole (H) and provide external protection.

[0059] Furthermore, the fastening nut (7) has a second cover portion (7D) that covers from the outside a constricted portion (D3) that is formed on the outer periphery of the one (5) into which the fastening nut (7) is threaded and that allows the fastening nut (7) to be loosely fitted before being tightened, as the fastening nut (7) is tightened to the other (3B). According to the above configuration, by utilizing the configuration of the fastening nut (7), it is possible to rationally cover from the outside the constricted portion (D3) that allows the female thread (7C) to be loosely fitted before being tightened.

[0060] The connecting member 5 has a connecting cylindrical portion 5D extending cylindrically in the axial direction. The fitting shaft portion 3B has a cylindrical outer fitting cylindrical portion B1 that fits into the connecting cylindrical portion 5D from the outside of the cylinder, and an inner fitting portion B2 that extends further in the axial direction than the outer fitting cylindrical portion B1 and fits into the inside of the connecting cylindrical portion 5D. A pin 6 is inserted into each of holes D1, B3 formed in the connecting cylindrical portion 5D and the inner fitting portion B2. A fastening nut 7 is threadedly engaged with the connecting cylindrical portion 5D from the outside of the cylinder and is tightened in the axial direction against the cylindrical end face of the outer fitting cylindrical portion B1.

[0061] According to the above configuration, the engaging shaft portion (3B) of the operating member (3) is engaged with the connecting member (5), and the pin (6) is inserted between them from the outside in the radial direction, and the fastening nut (7) is tightened so as to suppress any play, which can be realized with a relatively simple configuration.

[0062] In addition, the fastening nut 7 has an outer circumferential surface of the nut that is flush with the outer circumferential surface of the outer fitting tubular portion B1. According to the above configuration, the fastening nut 7 can be formed in an attractive, unified shape that forms an outer circumferential surface of the nut that is continuous with the outer circumferential surface of the fitting shaft portion 3B.

[0063] Other Embodiments Although one embodiment of the present invention has been described above, the present invention can be embodied in various forms as described below in addition to the above embodiment.

[0064] 1. The faucet of the present invention may be used in places other than vanities, such as kitchens and bathrooms. Furthermore, the rotary operating member may be a single lever handle, or may be used as various levers or handles for controlling water flow, water destination, temperature adjustment, etc.

[0065] 2. The fitting shaft of the operating member, i.e., the fitting shaft that is fitted into the connecting member, does not have to be inserted into the connecting member in the axial direction until it bottoms out. In other words, the fitting shaft may be configured so that the axial insertion position is determined by inserting a pin into the connecting member.

[0066] 3. The combination of the radial holes formed in the mating shaft and the connecting member and the pins inserted into each hole may be a combination of a square hole and a square pin. Furthermore, the radial holes formed in the mating shaft and the connecting member may be configured so that the pin passes through them radially, or so that the pin is inserted only partway between them in the radial direction. The mating structure for axially mating the mating shaft and the connecting member may be such that one fits radially inward.

[0067] 4. The fastening nut may be configured to be threaded onto the fitting shaft portion and tightened axially relative to the connecting member. In the above embodiment, the fastening nut is configured to have a first cover portion that covers the insertion hole from the outside in the radial direction as the fastening nut is tightened, but the fastening nut may not have a first cover portion.

[0068] The first cover may completely cover the insertion hole from the outside in the radial direction, or may cover only a part of the insertion hole from the outside in the radial direction. Even with such a configuration, the first cover can prevent the pin inserted into the insertion hole from falling out in the radial direction.

[0069] In addition, in the above embodiment, the fastening nut is exemplified as having a second cover portion that covers the constricted portion, which becomes the loose fit portion before tightening, from the outside when the fastening nut is tightened, but it may also be configured not to have a second cover portion.

[0070] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the description of the above embodiments, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0071] 1... faucet, 2... faucet body, 3... operating lever (operating member), 3A... grip portion, 3B... mating shaft portion (other side), B1... outer mating cylindrical portion, B2... inner mating portion, B3... hole portion, 4... cartridge, 4A... plug rod, A1... screw hole, 5... connecting fitting (connecting member, one side), 5A... seat portion, 5D... connecting cylindrical portion, D1... hole portion, D2... male thread, D3... constricted portion, 6... pin, 7... fastening nut, 7C... female thread (first cover portion), 7D... extension portion (second cover portion), 8... fastening bolt, H... insertion hole

Claims

1. A faucet having a rotary operating member and a connecting member connected to the operating member so as to receive an operating force, a fitting shaft portion extending in an axial direction from the operating member and fitted in the axial direction with respect to the connecting member so as to be rotatable relative to the connecting member; Each of the fitting shaft portions and the connecting member has a radial hole portion, and the fitting shaft portion and the connecting member have a radial hole portion that communicates with each other and opens radially outward when the fitting shaft portion is rotated. a pin inserted radially across each of the holes; A faucet having a fastening nut that is threaded onto one of the fitting shaft portion and the connecting member and can be axially tightened relative to the other.

2. The faucet according to claim 1, Each of the holes is formed to penetrate radially through the connecting member and the fitting shaft portion, A faucet in which the pin is inserted so as to penetrate each of the holes.

3. The faucet according to claim 1 or 2, The fastening nut has a first cover portion that covers the insertion hole from the radial outside when the fastening nut is tightened to the other.

4. The faucet according to claim 1 or 2, A faucet having a second cover portion that covers from the outside a constricted portion formed on the outer periphery of one of the fastening nuts onto which the fastening nut is threaded, allowing the fastening nut to be loosely fitted before tightening as the fastening nut is tightened onto the other.

5. The faucet according to claim 1 or 2, the connecting member has a connecting cylindrical portion extending cylindrically in the axial direction, the fitting shaft portion has a cylindrical outer fitting cylindrical portion that is fitted to the connecting cylindrical portion from the outside of the cylindrical portion, and an inner fitting portion that extends longer in the axial direction than the outer fitting cylindrical portion and is fitted into the cylindrical connecting cylindrical portion, the pin is inserted into each of the holes formed in the connecting cylindrical portion and the inner fitting portion, The fastening nut is threaded onto the connecting cylindrical portion from the outside of the cylinder and is tightened axially against the cylindrical end surface of the outer fitting cylindrical portion.

6. The faucet according to claim 5, A faucet in which the fastening nut has an outer circumferential surface of the nut that is flush with the outer circumferential surface of the outer fitting cylindrical portion.

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