JP6529897B2 - Water discharge head attached to faucet and faucet - Google Patents

Description

  The present invention relates to a faucet, and more particularly to a connection structure of a spouting head in a faucet.

  A faucet is known in which a faucet body and a spouting head (a tip portion of the faucet) are configured as separate parts, and the spouting head is replaceable (see Patent Document 1). For example, when you select a faucet that does not have a water purification function at the time of purchase, you may want to replace it with a water discharge head with a water purification function later, or simply replace it with a new design of water discharge head.

Utility model registration 3127928 gazette

  In the case of a faucet that can replace the spouting head, the appearance of the joint between the spouting head and the faucet body may be impaired as a whole.

  In patent document 1, the faucet 1 for replacement (water discharge head) is connected to the flexible hose of the faucet main body using a dedicated connector. In Patent Document 1, the joint portion between the connection cylinder 6 protruding from the faucet main body and the replacement faucet metal fitting 1 is easily noticeable, and in the case of a water discharge head which can be easily exchanged at home, the joint portion may be more noticeable There is.

  The present invention has been made based on the above problem recognition, and its main object is to propose a structure in which the water spouting head can be connected to the faucet main body with a structure that can be easily attached and detached, and in particular the joint portion is not noticeable It is.

  A faucet according to an aspect of the present invention includes a faucet main body having a joint pipe projecting from a side surface of the main body, and a water discharge head attached to the faucet main body in a state in which the joint pipe is detachably accommodated. A tapered surface is formed on the outer surface of the joint pipe. The water discharge head is mounted on the faucet main body with its end facing the tapered surface of the joint pipe.

  The water discharge head in one aspect of the present invention is detachably connected to a faucet main body having a joint pipe protruding from a side surface of the main body. A first tapered surface is formed at the end, and a second tapered surface is formed on the outer surface of the joint pipe. The water discharge head is mounted on the faucet main body with the first tapered surface facing the second tapered surface.

  According to the present invention, it is easy to realize the connection structure of the water discharge head which is easy to attach and detach and whose joint portion is hardly noticeable.

It is a side view of a faucet. It is a disassembled perspective view of a faucet. It is a disassembled perspective view of the water discharging head in 1st Embodiment. It is a schematic diagram of the junction structure in 1st Embodiment. It is a schematic diagram of the junction structure in a 1st comparative example. It is a schematic diagram of the junction structure in a 2nd comparative example. It is a side view of a joint pipe. It is a schematic diagram which shows the junction structure of a water discharge head and a joint pipe. It is a sectional view of a spouting head without water purification function. It is sectional drawing of the faucet which attached the spout head to the faucet main-body part. It is sectional drawing of the spout head which has a water purification function. It is sectional drawing of the faucet which attached the spout head to the faucet main-body part. It is a disassembled perspective view of the water discharging head in 2nd Embodiment. It is sectional drawing of the water discharging head in 2nd Embodiment. It is sectional drawing of the faucet which attached the water discharging head to the faucet main-body part in 2nd Embodiment. It is an expansion perspective view of the circumference of a shock absorbing member.

First Embodiment
FIG. 1 is a side view of a faucet 100. FIG. 2 is an exploded perspective view of the faucet 100. As shown in FIG.
The faucet 100 in the present embodiment includes a faucet body 112 and a spouting head 106. The spouting head 106 and the faucet main body 112 are connected in a removable structure that can be exchanged by general users. The water discharge head 106 shown in FIG. 1 is a type which does not have a water purification function.

  The faucet body 112 includes a spout handle 102, a rotating portion 104, a support 108 and a support cap 114. The support portion 108 is fixed to a kitchen or the like, and incorporates the water flow pipe 110 (see FIG. 2). The rotating unit 104 is installed to cover the support 108. The rotating portion 104 rotates in the horizontal direction about the support portion 108. The column cap 114 above the rotating part 104 is connected to the column part 108. The rotating portion 104 is positioned by the support cap 114 so as not to be pulled up and down. When the user moves the water discharge handle 102 above the column cap 114 in the vertical direction, the water discharge handle 102 moves the operation projection 116 of the column 108 back and forth, whereby the valve (not shown) built in the column 108 opens and closes. Be done.

  The joint pipe 118 projects from the rotating portion 104 in the radial direction, preferably obliquely upward. The joint pipe 118 is connected to the water flow pipe 110 via the water flow port 124. The tubular member 172 is further inserted into the joint pipe 118. The water discharge head 106 is fixed to the rotating portion 104 in a removable structure, with the joint pipe 118 and the tubular member 172 housed therein. As shown in FIG. 1, the end of the water discharge head 106 faces the side surface (outer peripheral surface) of the rotating portion 104. That is, the spouting head 106 and the rotating part 104 (water faucet main body part 112) face each other at a point where the joint pipe 118 branches from the rotating part 104, and at the root of the joint pipe 118.

  The spouting head 106 is pushed to the root portion of the joint pipe 118 at the time of mounting. It is desirable that the water discharge head 106 abuts on the outer side surface of the rotary portion 104, but at least the joint portion between the rotary portion 104 and the water discharge head 106 approaches the outer side surface of the rotary portion 104 to such an extent that it is not noticeable. More specifically, “pushing to the root portion” means that the spouting head 106 accommodates 90% or more of the total length of the joint pipe 118 or a gap between the end of the spouting head 106 and the outer surface of the rotating portion 104 Means within 1.5 mm.

  At the lower part of the water discharge head 106, an insertion port 122 extending in the circumferential direction is formed. After inserting the joint pipe 118 into the spout head 106, the user inserts the fastener 120 from the insertion port 122. The fastener 120 is formed of a clip-shaped member (resin or the like) having a certain strength and elasticity. When mounting the spouting head 106 on the faucet body portion 112, the joint pipe 118 is accommodated in the spouting head 106, and the spouting head 106 is pushed toward the rotating portion 104. Next, the fastener 120 is manually pushed from the insertion port 122. The water spouting head 106 is fixed to the rotating portion 104 as the fastener 120 grips (holds) the joint pipe 118 like a clip. If the fastener 120 is removed, the spouting head 106 can be easily removed from the faucet body 112 by manually pulling the spouting head 106.

  Note that “removable” in the present embodiment does not include a structure for completely fixing the water discharge head 106 and the faucet main body 112 by adhesion, welding or the like. It means a structure that a general user can attach and remove by themselves at home, and a structure that does not require a dedicated tool for attaching and detaching a screw driver or the like is preferable. In the present embodiment, the water discharge head 106 and the faucet main body 112 are fixed by the fastener 120, but the fastener 120 can be inserted and removed with a finger or a nail without using a tool. Moreover, although the metal fastener 120 may be hooked and removed using arbitrary metal rods etc., the exclusive tool for attachment or detachment is not essential. Of course, an additional fixing member such as the fastener 120 may not be used.

  An outer diameter enlarged portion 174 having a tapered shape and having an outer diameter larger than the outer diameter of the central portion of the joint pipe 118 is formed at the root portion of the joint pipe 118. The user usually rotates the rotating unit 104 by operating the water discharge head 106. At this time, the load accompanying the rotation is concentrated at the root portion of the joint pipe 118. In the present embodiment, by forming the outer diameter enlarged portion 174 at the root portion of the joint pipe 118, the connection strength between the joint pipe 118 and the rotating portion 104 is improved.

  The water discharge head 106 is pushed and mounted toward the rotating portion 104 until at least all or part of the outer diameter expanding portion 174 is accommodated. The end of the water discharge head 106 may be brought into contact with the outer surface of the rotary portion 104 to completely accommodate the enlarged outer diameter portion 174.

FIG. 3 is an exploded perspective view of the water discharge head 106 in the first embodiment.
The water discharge head 106 of the first embodiment includes an outer shell 126, an inner pipe 128, a water discharge port member 130 and a flow straightening member 132. The inner pipe 128 accommodates the joint pipe 118 and the tubular member 172 fixed to the joint pipe 118. The tap water reaches the water discharge port member 130 from the water flow pipe 110 through the tubular member 172 and the inner pipe 128 in the joint pipe 118, and is discharged to the sink (not shown) through the flow control member 132. The valve connected to the water flow pipe 110 and built in the support 108 is opened and closed by the water discharge handle 102 and the operation projection 116.

  The inner tube 128 is covered by an outer shell 126 (outer tube). That is, the water discharge head 106 has a double structure of an inner pipe 128 and an outer shell 126. The rotating shaft of the rotating unit 104 is the support 108, and the water discharge head 106 is connected not to the supporting unit 108 but to the joint pipe 118 branched from the rotating unit 104.

  Since the joint pipe 118 is extended by the water discharge head 106, when the water discharge head 106 is rotated in the horizontal direction, the rotational force is transmitted to the joint pipe 118 as it is. Easy to convey. Since the joint pipe 118 is accommodated in the water discharge head 106, the joint pipe 118 does not constitute an appearance.

  The double structure of the inner pipe 128 and the outer shell 126 of the water discharge head 106 improves the strength of the entire water discharge head 106. The inner pipe 128 extends from the spout member 130 to an end of the outer shell 126 (a portion facing the rotating portion 104) so as to cover substantially the entire area of the outer shell 126. The “end of the outer shell 126” as used herein refers to a range within 3 mm from the tip 176 of the outer shell 126. For this reason, the end of the inner pipe 128 and the end of the outer shell 126 substantially coincide with each other. Not only the outer shell 126 but also the inner tube 128 is pushed until at least all or a part of the enlarged outer diameter portion 174 is accommodated when the faucet body portion 112 is mounted. Alternatively, the inner tube 128 may be shaped so that a part thereof protrudes from the end of the outer shell 126.

  The inner tube 128 and the outer shell 126 have different roles. The appearance of the outer shell 126 is important, but the appearance of the inner tube 128 incorporated in the outer shell 126 is not so important. On the other hand, since the inner pipe 128 is a water passage and is directly joined to the joint pipe 118, high processing accuracy is particularly required for its internal structure.

  For weight reduction and cost reduction, both the outer shell 126 and the inner pipe 128 are formed of a resin such as ABS resin or polyacetal. If the outer shell 126 can be made lightweight, it is easy to carry the replaceable spouting head 106 and it is also safe. Since the resin has lower strength than metal, the dual structure of the inner tube 128 and the outer shell 126 strengthens the water discharge head 106. Also, the shell 126 is resin-plated to give a metallic luster. At the time of resin plating, the outer shell 126 is dipped in a plating solution while supporting the vicinity of the tip 176 from the inside. Since the plating solution is at a high temperature, the supporting portion (inner side) of the outer shell 126 is likely to be stressed. This stress may reduce the processing accuracy of the internal structure of the shell 126. On the other hand, since the inner pipe 128 does not need to be resin-plated, such stress is not involved. For this reason, the appearance of the outer shell 126 and the functionality of the inner tube 128 are made compatible by making the inner tube 128 that requires relatively high processing accuracy separate from the outer shell 126.

  The outer surface of the rotating portion 104 has a curved shape (cylindrical shape), but the end faces of the outer shell 126 and the inner tube 128 are also processed into a shape that matches the curved shape of the rotating portion 104. Further, although details will be described later, the end faces of the outer shell 126 and the inner tube 128 are processed into a shape that matches the tapered surface of the outer diameter enlarged portion 174. That is, the end faces of the outer shell 126 and the inner pipe 128 form a shape that matches the shape of the outer surface of the outer diameter enlarged portion 174 and the outer surface of the rotating portion 104. For this reason, it is possible to connect the water discharge head 106 and the rotating portion 104 in a smooth appearance without a gap.

FIG. 4 is a schematic view of a junction structure in the present embodiment.
Since it is a schematic diagram for demonstrating the characteristic of joining structure, detailed structure of the cylindrical member 172, the outer diameter enlarged part 174 grade | etc., Is abbreviate | omitted in FIG. In the present embodiment, the joint pipe 118 is provided as a part of the rotating portion 104, and the joint pipe 118 is accommodated in the water discharge head 106 to connect the water discharge head 106 and the faucet main body 112. An interface 105 (a joint portion) between the water discharge head 106 and the rotating portion 104 is formed at the root of the joint pipe 118.

5 and 6 are schematic views of the junction structure in the comparative example.
FIG. 5: is a comparative example (1st comparative example) which shows the type which provides the joint pipe 142 in the water discharge head 140 instead of the rotation part 138. As shown in FIG. A branched portion 146 is formed obliquely upward on the side surface of the rotating portion 138. The spouting head 140 and the rotating portion 138 are connected by inserting the joint pipe 142 as a part of the spouting head 140 into the branch portion 146. An interface 144 (junction) between the water discharge head 140 and the branch 146 is formed at the tip of the branch 146. In the comparative example (second comparative example) shown in FIG. 6, the joint pipe 118 is provided at the branch portion 147. The point of containing the joint pipe 118 in the water discharge head 141 is the same as that of the present embodiment, but the boundary surface 144 is formed at the tip end 176 of the branch portion 146 as in FIG. 5.

  In the case of the structure of FIG. 4, since the spouting head 106 covers the joint pipe 118 projecting from the side of the main body, the outer diameter of the spouting head 106 is not substantially restricted. The inner pipe 128 of the water discharge head 106 needs to have its inner diameter equal to the outer diameter of the joint pipe 118, but the inner diameter and outer diameter of the outer shell 126 can be designed relatively freely. On the other hand, in the case of the comparative example shown in FIGS. 5 and 6, the outer diameters of the water discharge heads 140 and 141 need to be the same as the outer diameters of the branch portions 146 and 147. , Regulated to an outer diameter of 147.

  As shown in FIG. 4, when the joint pipe 118 protruding from the outer surface of the rotary portion 138 is accommodated in the water discharge head 106, the surface of the rotary portion 104 can be made into the boundary surface 105, compared with the first and second comparative examples. There is also a merit that the joint portion is not noticeable. In the case of the connection structure as in the first and second comparative examples, since the boundary surface 144 is conspicuous, it is considered that the user may misunderstand that the hose can be pulled out from the joint portion by pulling the water discharge head 140. Be

  In the case of the first and second comparative examples, when a gap is formed in the boundary surface 144, foreign matter such as dust is likely to enter the branch portion 146. On the other hand, even if there is a gap in the boundary surface 105 of the present embodiment and foreign matter enters there, there is almost no possibility that it will penetrate into the joint pipe 118 and the spouting head 106. This is because the water discharge head 106 extends obliquely upward.

  In particular, since the joint pipe 142 in the first comparative example is a projection from the water discharge head 140, the faucet body portion is caused by the projection (joint pipe 142) of the water discharge head 140 unexpectedly contacting the side surface or the like of the rotating portion 138. There is a risk of hurting

  In the case of the present embodiment, even if there is some variation in the length of the joint pipe 118, adjusting the insertion depth of the joint pipe 118 into the water discharge head 106 facilitates absorbing the variation in the length. On the other hand, in the case of the first comparative example, the length of the joint pipe 142 is likely to be restricted by the length of the branch portion 146.

  In the present embodiment, the inner tube 128 participates in connection with the rotating portion 104, but the outer shell 126 does not directly participate. Since the load accompanying the connection is unlikely to be applied to the shell 126, the material of the shell 126 can be selected relatively freely.

FIG. 7 is a side view of the joint pipe 118.
In the joint pipe 118, a tubular member 172 of a smaller diameter is inserted at the tip thereof, and a tapered outer diameter enlarged portion 174 which is expanded to a larger diameter is formed at a connection portion (root portion) with the rotating portion 104 . The joint pipe 118 and the rotating portion 104 are integrally molded of resin. Resin is poured into a mold corresponding to the rotary part 104 and the joint pipe 118, and after fixing, the rotary part 104 and the like are removed from the mold. At this time, load may be applied to the portion of the joint pipe 118 not exposed to the outside, not the portion of the rotating portion 104 exposed to the outside, and the portion may be removed from the formwork.

  A notch 178 (first rotation restricting portion) is formed at the tip of the joint pipe 118. A projection 182 (described later in FIGS. 9 and 11, a second rotation restricting portion) is formed on the inner wall of the inner pipe 128, and the projection portion engages with the notch 178 at the time of mounting. The engagement of the projections 182 and the notches 178 restricts the circumferential rotation of the water discharge head 106.

FIG. 8 is a schematic view showing the joint structure of the water discharge head 106 and the joint pipe 118. As shown in FIG.
First, both end faces of the outer shell 126 and the inner pipe 128 face the outer diameter enlarged portion 174. The outer shell 126 and the inner pipe 128 form a tapered end surface (hereinafter referred to as “water discharge head end surface 180”), and the water discharge head end surface 180 (first tapered surface) has a tapered outer shape of the outer diameter enlarged portion 174 It has an inclination at least in the same direction as the side surface (second tapered surface), and faces each other at an angle substantially parallel to each other. Since the tapered surfaces having substantially the same shape are opposed to each other, the gap (groove) of the boundary surface 105 is hardly noticeable. The water discharge head end surface 180 may abut on the outer diameter enlarged portion 174 or the rotating portion 104. The water discharge head end surface 180 may abut on the entire outer diameter expanding portion 174 or the rotating portion 104, or a part thereof may be abutted. In the case of partial contact, it is desirable to preferentially contact the upper surface side that is easily viewed by the user. Similarly, in the case of facing (non-contact) instead of contact, it is desirable to preferentially bring the upper surfaces closer.

  The inner side surface of the inner pipe 128 is a small housing portion 184 as a water flow passage, a middle housing portion 186 (second housing portion) corresponding to the cylindrical member 172, a large housing portion 188 corresponding to the joint pipe 118 (first housing portion ). The inner diameter (first inner diameter) of the large housing portion 188 is larger than the inner diameter (second inner diameter) of the middle housing portion 186. A small first O-ring 152 is attached to the tubular member 172 having a relatively small outer diameter, and a relatively large second O-ring 150 is attached to the joint pipe 118. The first O-ring 152 and the second O-ring 150 are both made of rubber. The main role of the first O-ring 152 is to prevent the water discharged from the tubular member 172 from flowing back and leaking from the fastener 120 or the interface 105. Since the first O-ring 152 is small, it is easy to be securely attached, and it is difficult for a "twist" to occur. As it is easy to attach the first O-ring 152 to the correct position of the cylindrical member 172, it is easy to stop water reliably.

  On the other hand, the main role of the second O-ring 150 is to prevent the water discharge head 106 from rattling. Because the second O-ring 150 is large, adhesion between the joint pipe 118 and the inner pipe 128 can be improved more easily than the first O-ring 152. Further, since the second O-ring 150 is crushed when the water discharge head 106 is attached, its restoring force acts as a force to press the water discharge head 106 against the rotating portion 104.

  As described above, the water discharge head 106 is detachably (replaceably) attached to the faucet main body 112. Since it is detachable at home, there is a possibility that the groove of the joint portion may become large depending on the installation situation. Therefore, instead of inserting the spouting head 140 into the branch portion 146 as in the first comparative example of FIG. 5, the spouting head 106 (the outer shell 126 and the inner pipe 128) is pushed to the root portion of the joint pipe 118. As a result, the surface of the rotating portion 104 becomes the boundary surface 105 as it is, so the boundary surface 105 is less noticeable than in the first and second comparative examples.

  Further, an outer diameter enlarged portion 174 is formed at the root of the joint pipe 118 in order to strengthen the joint between the joint pipe 118 and the rotating portion 104. By forming the outer diameter enlarged portion 174 in a curved surface shape and correspondingly making the water discharge head end face 180 also have the same curved surface shape, the boundary surface 105 becomes less noticeable. The shape of the water discharge head end face 180 and the curved surface shape of the outer diameter enlarged portion 174 (or the rotating portion 104) coincide with each other. Here, “coincidence” refers to the shape of the end face 180 of the water discharge head such that a large gap, for example, a gap of 1.0 mm or more, does not occur in the facing portion of the water discharge head 106 and the outer diameter enlarged part 174. It means approaching the curved surface shape of 174.

  Since the water discharge head end face 180 is formed to have the same shape as the outer diameter enlarged part 174, connection can be made correctly by inserting the water discharge head 106 while aligning the direction of the water discharge head end face 180 with the outer diameter enlarged part 174. . Furthermore, if the water discharge head 106 is not properly set if the notches 178 and the projections (described later) formed on the inner side surface of the inner pipe 128 do not engage properly, the connection can be further assured. The fact that the water discharge head end face 180 is wide also contributes to facilitating the mounting of the water discharge head 106.

  In summary, the tapered outer diameter enlarged portion 174 is formed to improve the joint strength between the joint pipe 118 and the rotating portion 104, but the water discharge head end face has the same shape as the outer surface of the outer diameter enlarged portion 174. By forming 180, the boundary surface 105 can be made inconspicuous. In addition, since the outer surface shape of the outer diameter enlarged portion 174 and the shape of the water discharge head end surface 180 are the same, it becomes easy to mount the water discharge head 106 at the correct position.

  By fitting a relatively large second O-ring 150 to the joint pipe 118, the connection between the joint pipe 118 and the water discharge head 106 is ensured. Further, the relatively small first O-ring 152 is fitted to the cylindrical member 172 to ensure water blocking.

FIG. 9 is a cross-sectional view of the spouting head 106 without the water purification function. FIG. 10 is a cross-sectional view of the faucet 100 a in which the water discharge head 106 is attached to the faucet body 112.
As described above, the water discharge head 106 has a double structure of the inner pipe 128 and the outer shell 126, and the inner pipe 128 is connected to the water discharge port member 130 with the third O ring 154 interposed therebetween. The outlet of the spout member 130 is capped by the flow straightening member 132. The straightening member 132 straightens the flowing water from the inner pipe 128 into foam water.

  A cylindrical member 172 is screwed into the inside of the joint pipe 118, and the first O-ring 152 stops water between the inner pipe 128 (the middle accommodation portion 186) and the cylindrical member 172. The water is blocked between the water passage 124 and the cylindrical member 172 by another fourth O-ring 155. The joint pipe 118 is inserted into the inner pipe 128, and the water discharge head 106 faces or abuts against the rotating portion 104 (the outer diameter expanding portion 174). A second O-ring 150 is fitted between the inner pipe 128 (large housing portion 188) and the joint pipe 118 to prevent rattling. After the joint pipe 118 is inserted into the inner pipe 128, the water spouting head 106 is firmly fixed to the joint pipe 118 by the fastener 120 gripping the joint pipe 118.

  Further, as noted in FIG. 10, a projection 182 (second rotation restricting portion) is formed on the inner side surface of the inner pipe 128. When the protrusion 182 and the notch 178 of the joint pipe 118 are aligned and the water discharge head 106 is inserted, the protrusion 182 and the notch 178 are engaged, and circumferential rotation of the water discharge head 106 is prevented. The notch 178 may be formed in the inner pipe 128 and the projection 182 may be formed in the joint pipe 118. Further, in consideration of the processability of the notch 178 and the protrusion 182, the entire inner pipe 128 and the joint tube 118 may be formed of resin, but only the portion of the notch 178 and the protrusion 182 may be formed of resin.

FIG. 11 is a cross-sectional view of a water discharge head 148 having a water purification function. FIG. 12 is a cross-sectional view of a faucet 100 b in which the water discharge head 148 is attached to the faucet body 112.
A water discharge head 148 having a water purification function also has a double structure of an inner pipe 170 and an outer shell 164, and a water discharge member 160 is attached to the tip. The clean water handle 162 provided on the water discharge member 160 is an operation member for switching between raw water and clean water. The water discharge head end surface 180 of the water discharge head 148 is also formed as a curved surface that matches the outer peripheral shape of the outer diameter enlarged portion 174 (see FIG. 11).

  In the structure shown in FIG. 11, the inner tube 170 is fitted with the cartridge holding portion 156, and includes the cartridge holding portion 156 as a part thereof. The joint pipe 118 is inserted into the inner pipe 170. The fifth O-ring 166 is inserted between the inner pipe 170 and the cartridge holder 156. The cartridge holding portion 156 also incorporates the water purification cartridge 158, and the water purification cartridge 158 can be replaced if the water discharging member 160 is removed. Inside the cartridge holding portion 156 is a valve 168. When the water purification cartridge 158 is set, the water purification cartridge 158 pushes the valve 168, and the inner pipe 170 and the cartridge holding portion 156 (water purification cartridge 158) communicate with each other. On the other hand, when the water purification cartridge 158 is removed, the water pressure in the inner pipe 170 closes the valve 168. The valve 168 is a safety device for preventing the water in the inner pipe 170 from being ejected from the tip of the water discharge head 148 as it is when the water purification cartridge 158 is removed while the water is flowing.

  As noted in FIG. 12, a projection 182 (second rotation restricting portion) is formed on the inner side surface of the inner pipe 170. By engaging the projection 182 with the notch 178 of the joint pipe 118, the water discharge head 106 is prevented from rotating in the circumferential direction.

Second Embodiment
FIG. 13 is an exploded perspective view of the water discharge head 106 in the second embodiment.
The spouting head 106 includes an outer shell 126, an inner pipe 128, a spout member 130, and a baffle member 134 as a part of the inner pipe 128 in addition to the flow straightening member 132. The second embodiment is the same as the first embodiment except that a shock absorbing member 134 is provided. The buffer member 134 is a rubber spacer connected to the end of the inner pipe 128, and abuts on the rotating portion 104 when the water discharge head 106 is connected. The buffer member 134 has a shape that covers the end face of the outer shell 126. The buffer member 134 may be integrally formed with the inner pipe 128 or may be integrated with the inner pipe 128 by being bonded to the inner pipe 128. In the second embodiment, the outer shell 126 of the water discharge head 106 is not in direct contact with the faucet body 112 but abuts on the faucet body 112 via the buffer member 134. An end face of the buffer member 134 is formed as a tapered surface, and abuts on the tapered surface of the enlarged outer diameter portion 174 of the joint pipe 118. FIG. 14 shows a cross-sectional view of the water discharge head 106 in the second embodiment, and FIG. 15 shows a cross-sectional view of the water faucet 100a in which the water discharge head 106 in the second embodiment is attached to the water faucet body 112. Both are the same as FIGS. 9 and 10 except that a shock absorbing member 134 is added. The same applies to the case with the water purification function.

  Since the buffer member 134 is made of rubber, the faucet main body 112 is not easily damaged when the water discharge head 106 is attached. In addition, since the boundary surface 105 (bonded portion) is blocked by the buffer member 134, rattling of the water discharge head 106 can be easily prevented.

FIG. 16 is an enlarged perspective view of the periphery of the buffer member 134.
The buffer member 134 covers the end face of the outer shell 126 on the side of the faucet body 112. The buffer member 134 may be a member having a higher elastic modulus than the shell 126. The contact width T of the contact surface 136 of the buffer member 134 is at least greater than the thickness of the outer shell 126. The side surface of the rotating portion 104 in the present embodiment has a curved shape (cylindrical shape), but the contact surface 136 of the buffer member 134 is also processed into a shape that matches the curved shape of the rotating portion 104. For this reason, it is possible to connect the water discharge head 106 and the rotating portion 104 in a smooth appearance without a gap.

  Furthermore, since the spouting head 106 and the rotating portion 104 are connected via the elastic buffer member 134, the spouting head 106 and the faucet body portion 112 can be closely adhered without any gap. Further, since the contact surface 136 is expanded by increasing the contact width T, the pressure accompanying the connection is easily dispersed, and the connection of the water discharge head 106 makes the rotating portion 104 less likely to be damaged.

  When the buffer member 134 is not installed as in the first embodiment, the outer shell 126 directly abuts or opposes the rotating portion 104 (outer diameter enlarged portion 174). Also in this case, the pressure associated with the connection may be reduced by enlarging the end face of the outer shell 126, for example, by thickening the outer shell 126 at the end.

In the above, based on the embodiment, the structure of the faucet 100, in particular, the connection structure between the water discharge heads 106 and 148 and the faucet main body 112 has been mainly described.
According to the present embodiment, the sizes of the outer shells 126 and 164 of the water discharge heads 106 and 148 can be set relatively freely while the water discharge heads 106 and 148 can be attached to and detached from the water faucet body 112. Since the boundary surface 105 between the spouting heads 106 and 148 and the faucet main body 112 is inconspicuous, a clean design can be maintained despite the replacement type. Further, by engaging the notch 178 and the projection 182, the water discharge head 106 is prevented from being displaced in the rotational direction.

  The present invention has been described above based on several embodiments. It is understood by those skilled in the art that these embodiments are exemplifications, and that various modifications and alterations are possible within the scope of the present invention, and such variations and modifications are also within the scope of the present invention. It is about to be Accordingly, the descriptions and drawings herein are to be considered as illustrative and not restrictive.

  In the present embodiment, replacement of the spouting head 106 having no water purification function and the spouting head 148 having the water purification function has been described, but the present invention is not limited to this. For example, you may replace the spouting head without the shower function with the spouting head with the shower function, or prepare different lengths of spouting heads according to the size of the user's body (for example, adults and children) It is also good. Also, as when changing the wristband of a watch to change the mood, it is also possible to change the atmosphere of the kitchen by replacing it with a different spouting head with a different design even if there is no difference in function.

  In the present embodiment, both the water discharge head 106 and the rotating portion 104 have been described as having a cylindrical shape, but may be a cylindrical member having an arbitrary cross sectional shape such as an ellipse or a rectangle, or a non-cylindrical housing It may be Similarly, the double structure of the water discharge head 106 is not an essential component. The joint pipe 118 may be a separate part attached to the faucet body 112. An example is shown where the spouting head 106 is pushed to the root of the joint pipe 118 at the time of mounting, but the main configuration of the present invention can be realized even with the type having the branching portion 146 as in the first comparative example and the second comparative example. It is.

The following invention is recognized from the above description.
A faucet according to an aspect of the present invention includes a faucet main body having a joint pipe projecting from a side surface of the main body, and a water discharge head attached to the faucet main body in a state in which the joint pipe is detachably accommodated. A tapered surface is formed on the outer surface of the joint pipe. The water discharge head is mounted on the faucet main body with its end facing the tapered surface of the joint pipe.

  A tapered surface is formed on the joint pipe, and an end of a water discharge head accommodating the joint pipe is made to face the tapered surface. When the spouting head is attached and detached freely at home, there is a possibility that the junction between the spouting head and the faucet main body becomes noticeable. By matching the tapered surface of the joint pipe with the joint portion, the depth of the groove of the joint portion can be made shallow, so that the joint portion becomes less noticeable. Moreover, if a taper surface is formed in a joint pipe, it will become easy to strengthen joining of a joint pipe and a faucet main-body part.

  A tapered surface may also be formed at the end of the water discharge head.

  The spouting head may be mounted on the faucet body with the tapered surface of the spouting head and the tapered surface of the joint pipe in contact with each other in part or all.

  The water discharge head may be in direct contact with the joint pipe, or may be in contact with the joint pipe via an intermediate member such as a buffer member. The contact between the spouting head and the joint pipe makes it easy to prevent the spouting head from rattling.

The spouting head may be mounted on the faucet main body in a state in which the joint pipe is accommodated up to the root portion of the joint pipe.
In the case of a structure in which the spouting head is inserted to the root of the joint pipe, the junction of the faucet body and the spouting head becomes a junction, so that the junction is less noticeable.

  Inside the water discharge head, a first housing portion having a first inner diameter is formed on the end side, and a second housing portion having a second inner diameter smaller than the first inner diameter is formed on the back side. It is also good.

  The water discharge head in one aspect of the present invention is detachably connected to a faucet main body having a joint pipe protruding from a side surface of the main body. A first tapered surface is formed at the end, and a second tapered surface is formed on the outer surface of the joint pipe. The water discharge head is mounted on the faucet main body with the first tapered surface facing the second tapered surface.

  100 faucet, 102 spout handle, 104 rotating portion, 105 boundary surface, 106 spout head, 108 support portion, 110 water flow pipe, 112 faucet main body portion, 114 support cap, 116 operation projection, 118 joint tube, 120 fastener, 122 inlet, 124 water outlet, 126 outer shell, 128 inner pipe, 130 water outlet member, 132 rectifying member, 134 buffer member, 138 rotating member, 140 water discharging head, 142 joint tube, 144 boundary surface, 146 branch, 148 water spouting head, 150 second o-ring, 152 first o-ring, 154 third o-ring, 155 fourth o-ring, 156 cartridge holder, 158 water purification cartridge, 160 water spouting member, 162 water purification handle, 164 shell, 166 fifth O ring Grayed, 168 valve, 170 inner tube, 172 tubular members, 174 outer diameter enlarged portion, 176 tip 178 notched, 180 water discharge head end surface, 182 projection, 184 holding portion, in 186 accommodating portion 188 larger housing portion.

Claims (6)

A faucet body portion having a joint pipe projecting from a side surface of the body;
And a water discharge head attached to the faucet main body in a state in which the joint pipe is detachably accommodated.
A tapered surface is formed on the outer surface of the joint pipe,
The water spouting head is mounted on the water faucet body with the end of the water discharging head facing the tapered surface of the joint pipe.   The faucet according to claim 1, wherein a tapered surface is also formed at an end of the water discharge head.   3. The water discharge head according to claim 2, wherein the water discharge head is mounted on the water faucet main body with the tapered surface of the water discharge head and the tapered surface of the joint pipe in contact with each other in part or all. Water faucet.   The faucet according to any one of claims 1 to 3, wherein the spouting head is mounted on the faucet main body in a state in which the joint pipe is accommodated up to a root portion of the joint pipe.   Inside the water discharge head, a first accommodation portion having a first inner diameter is formed on the end side, and a second accommodation portion having a second inner diameter smaller than the first inner diameter is formed on the far side The water faucet according to any one of claims 1 to 4, characterized in that. Releasably connected to a faucet body having a fitting pipe projecting from the side of the body,
A first tapered surface is formed at the end,
A second tapered surface is formed on the outer surface of the joint pipe,
A water discharge head mounted on the faucet main body with the first tapered surface facing the second tapered surface.

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