JP4432034B2 - Height adjustment device - Google Patents

Description

  The present invention relates to a height adjustment device that adjusts the height of a member to be adjusted that requires height adjustment during use, such as a shower head or a microphone.

  Japanese Utility Model Publication No. 7-39976 describes a conventional apparatus for adjusting the height of a member to be adjusted such as a shower head.

  This height adjustment device fixes a base through which a long member to be adjusted movably moves up and down to a mounting plate such as a counter of a bathroom vanity, and is engaged with an annular recess of the member to be adjusted in the base. An engaging member having an annular convex portion to be joined is provided, and the engaging member is pressed by a leaf spring in the engaging direction with the member to be adjusted.

In this structure, by pulling up or pushing down the member to be adjusted, the annular convex portion and the annular concave portion of the engaging member are engaged, and the movement of the member to be adjusted is stopped by this engagement. In this case, the leaf spring is urged so that the engaging member is always pressed against the member to be adjusted, and the urging force holds the engagement state between the annular recess and the annular protrusion so that the member to be adjusted is The weight prevents it from being inadvertently lowered.
No. 7-39976

  In the conventional structure described above, since the engaging member is always in pressure contact with the adjusted member by the urging force of the leaf spring, the adjusted member moves while sliding the engaging member. Therefore, the member to be adjusted and the engaging member are easily worn, and the durability is small.

  In addition, since the member to be adjusted moves while sliding on the engaging member, when hot water, dust or the like adheres to the member to be adjusted, the coefficient of friction between the member to be adjusted and the engaging member increases. For this reason, in order to move the member to be adjusted up and down, a large operating force is required, and there is a problem that the operating force becomes heavy and the operability is lowered. Furthermore, since abnormal noise such as frictional noise and sliding noise is generated during the movement operation to the member to be adjusted, there is also a problem that becomes annoying.

  The present invention has been made in consideration of such conventional problems, and can improve durability, improve operability, and further generate abnormal noise during operation. The object is to provide a height adjustment device that does not.

In order to achieve the above object, the height adjusting device according to the first aspect of the present invention is capable of moving up and down, and the outer side is a long covering having a large-diameter portion on the upper side in the longitudinal direction and a small-diameter portion on the lower side in the longitudinal direction. and adjusting member, said large-diameter portion and having said through-hole diameter portion is inserted, the possible displacement in the direction performing the engagement and release thereof to the adjustable member, engagement of the large-diameter portion a lock member for locking the movement of the adjustable member by engagement, a locking holding means for holding the displacement state of the lock member of the the direction of engagement with the adjusting member, the locking member with respect to the small diameter portion a regulating member for regulating the displacement amount of said locking member so as to be disengaged, the lock release member for displacing the locking member into engagement release direction between the adjustment member, said adjustable member upward When the unlocking member is pressed and , When the locking member is a non-engagement with the small-diameter portion by said regulating member is characterized by comprising a resilient member for pushing up the adjustable member.

  In the first aspect of the present invention, the lock holding means holds the displacement state of the lock member in the direction of engagement with the member to be adjusted, whereby the lock member is engaged with the large diameter portion of the member to be adjusted. In order to lock the movement of the member to be adjusted, the member to be adjusted is stopped at a fixed position. On the other hand, the restricting member restricts the amount of displacement of the lock member so that the lock member does not engage with the small diameter portion. For this reason, although a lock member engages with a large diameter part, it can always be in a non-engagement state with respect to a small diameter part.

  When the lock release member displaces the lock member in the disengagement direction, the member to be adjusted moves in one direction biased by the elastic member. In this movement, since the lock member does not engage with either the large diameter part or the small diameter part, the member to be adjusted reaches the movement end and stops.

  When the displacement in the engagement release direction by the lock release member is released, the lock member is displaced in the engagement direction with the member to be adjusted by the lock holding means, and this displacement state is maintained. Also at this time, since the regulating member regulates the amount of displacement of the locking member, the locking member does not engage with the small diameter portion. Therefore, when the member to be adjusted is operated in the opposite direction from the end of movement, the member to be adjusted can be freely moved while the small diameter portion passes through the lock member. When the large-diameter portion reaches the lock member, the lock member engages with the large-diameter portion, so that the member to be adjusted is locked and the member to be adjusted stops at that position. Thereby, the height of the member to be adjusted can be adjusted.

  In such an invention of claim 1, since the operation to the unlocking member and the movement operation to the member to be adjusted are performed independently, and the height adjustment operation can be performed with one hand, the operability is improved. To do. Further, since the lock member is structured to be displaced in the engagement and release direction with respect to the member to be adjusted, the member to be adjusted does not move while sliding with the lock member. For this reason, wear of the member to be adjusted and the lock member is small, durability can be improved, and the coefficient of friction does not increase, so that the operating force does not increase and no abnormal noise or the like occurs.

  A second aspect of the present invention is the height adjusting device according to the first aspect, wherein the lock holding means abuts to displace the lock member in the engagement direction with the large-diameter portion when the lock member abuts. And a biasing portion that biases the lock member so as to abut against the abutting portion.

  In the second aspect of the invention, the lock member is displaced in the engagement direction when the lock member is brought into contact with the contact portion, and the biasing portion biases the lock member in the contact direction with respect to the contact portion. The state in which the member is displaced in the lock direction can be maintained. In such a structure, the displacement state of the lock member in the locking direction can be reliably held, and the displacement state can be held with a simple structure.

  According to the present invention, the member to be adjusted is moved to the moving end in one direction by the elastic member, and in this state, the member to be adjusted is moved in the opposite direction, thereby being displaced in the engagement direction with the member to be adjusted. Since the lock member engages with the large-diameter portion of the member to be adjusted, the member to be adjusted is locked, and the height of the member to be adjusted can be adjusted. For this reason, height adjustment operation can be performed with one hand, and operativity improves.

  In addition, since the member to be adjusted does not move while sliding with the lock member, wear of the member to be adjusted and the lock member is small, durability can be improved, and the friction coefficient does not increase. There is no increase in operating force and no abnormal noise is generated.

  1 to 14 show a height adjusting apparatus according to an embodiment of the present invention. FIG. 1 is a front view of a mounting state on a support member, FIG. 2 is an enlarged front view, and FIG. 4 is an enlarged sectional view of a portion A in FIG. 3, FIG. 5 is an enlarged sectional view of a portion B in FIG. 4, FIG. 6 is an enlarged sectional view of a portion C in FIG. 3, and FIG. 8 is an enlarged sectional view of a portion D in FIG. 7, FIG. 9 is a sectional view showing a moving state, FIG. 10 is a sectional view showing the moving state, FIG. 11 is an enlarged sectional view of an E portion in FIG. FIG. 13 is a sectional view showing movement following FIG. 12, and FIG. 14 is an enlarged sectional view of F in FIG.

  As shown in FIG. 1, the height adjusting device 10 of this embodiment shows application to a shower head 3, and a long pipe pipe 4 that connects the shower head 3 and the shower head 3 is adjusted. It is a member. The height adjusting device 10 is in a state of vertically penetrating the counter 1 of the vanity serving as a support member, and is fixed to the counter 1 by tightening the nut 2 in this through state.

As shown in FIG. 2 , the height adjusting device 10 includes a base 19 that penetrates the counter 1, a tension spring 20 as an elastic member, a lock member 12 and a contact member 13 that are attached to the inside of the base 19, A cover 18 that covers the top of the base 19 and a lock release button 16 attached to the cover 18 are provided. On the other hand, the long pipe 4 that connects the shower head 3 serves as a passage for supplying water and hot water to the shower head 3, and has a lower small diameter portion 4b and an upper large diameter portion with an intermediate portion as a boundary. 4a is formed along the longitudinal direction. In FIG. 4 , 4c is a boundary part which becomes a boundary with the small diameter part 4b and the large diameter part 4a. In this embodiment, the pipe pipe 4 is locked and released, and the member to be adjusted will be described as the pipe pipe 4 hereinafter.

  The base 19 has a T-shaped section integrally including a leg portion 25 and a head portion 26 integrally formed in a flange shape from the upper end portion of the leg portion 25, and these leg portions 25. And the pipe pipe 4 penetrates the head 26 in the vertical direction.

  The leg portion 25 stably moves the pipe pipe 4 in the vertical direction when the pipe pipe 4 penetrates. On the outer surface of the leg portion 25, a male screw portion 25a into which the nut 2 (see FIG. 1) is screwed is formed. A tension spring 20 as an elastic member is attached to the lower portion of the leg portion 25.

  The upper part of the tension spring 20 is locked by a hook recess 25b formed in the lower part of the leg part 25, and extends downward with the pipe pipe 4 penetrating therethrough. The lower end portion 20a of the tension spring 20 is locked to the lower end portion of the pipe pipe 4 by being reduced in diameter, so that the tension spring 20 always moves the pipe pipe 4 upward (one direction). It is energized as follows.

  The head portion 26 of the base 19 sandwiches the counter 1 together with the nut 2, and the height adjusting device 10 is attached to the counter 1 by this sandwiching. The lock member 12, the contact member 13, and the cover 18 are attached to the head portion 26.

  The lock member 12 is disposed in a recessed portion formed in the upper portion of the head portion 26 so that the pipe pipe 4 passes therethrough. The lock member 12 is constituted by a donut-shaped metal thin plate in which a through hole 12a through which the pipe pipe 4 passes is formed. The through hole 12 a is formed so as to be larger in diameter than the small diameter portion 4 b of the pipe tube 4 and slightly larger than the large diameter portion 4 a of the pipe tube 4. The through-hole 12a is engaged with the pipe tube 4 by being bitten into the pipe tube 4 and also releases the engagement. For this reason, the lock member 12 engages and releases the pipe tube 4. Tilt displacement in the direction to be performed is possible.

  The contact member 13 is attached to the head portion 26 of the base 19 so as to be positioned above the lock member 12. The pipe pipe 4 penetrates the contact member 13, and a first convex portion 13a as a contact portion faces downward on one side (right side in FIG. 3) of the contact member 13. It protrudes. On the opposite side (left side in FIG. 3) to the first convex portion 13a, a second convex portion 13b having a smaller projection amount than the first convex portion 13a is formed.

  When the lock member 12 abuts on the first convex portion 13a, the lock member 12 is displaced in the inclined direction so that the through hole 12a of the lock member 12 engages with the large diameter portion 4a of the pipe pipe 4 (FIG. 3 and FIG. 4). On the other hand, the second convex portion 13 b regulates the upper limit position of the inclination of the lock member 12, and the lock member so that the through hole 12 a of the lock member 12 is not engaged with the small diameter portion 4 b of the pipe pipe 4. 12 is a regulating member that regulates the amount of displacement.

  An urging portion 23 including a push pin 14 and a push spring 15 is disposed at a position corresponding to the second convex portion 13b. The push pin 14 penetrates the head portion 26 of the base 19 in the vertical direction, and the push spring 15 urges the push pin 14 to move upward by the penetration of the push pin 14. The push pin 14 urges the end of the lock member 12 on the side opposite to the first convex portion 13a upward (one direction in which the pipe tube 4 moves). The lock member 12 is displaced in the inclined direction so that the hole 12a engages with the large diameter portion 4a of the pipe tube 4.

  From the above, the through-hole 12a of the lock member 12 and the large-diameter portion 4a of the pipe pipe 4 are formed by the first convex portion 13a of the contact member 13 and the urging portion 23 including the push pin 14 and the push spring 15. The lock member 12 is held in a displaced state (inclined state) so as to be engaged, and these constitute a lock holding means.

  The cover 18 covers the head portion 26 of the base 19 so as to prevent the lock member 12, the abutting member 13, the push pin 14, and the push spring 15 from being detached from the head portion 26. The cover 18 is fixed in a state of being prevented from coming off from the head portion 26 by a locking projection 18 a formed on the inner surface of the lower portion engaging with a locking groove 26 a formed on the outer surface of the head portion 26. An unlock button 16 as an unlock member is attached to the cover 18.

  The lock release button 16 is attached to the cover 18 so as to correspond to the urging portion 23 including the push pin 14 and the push spring 15. The lock release button 16 has a flange portion 16 a that expands in the radial direction at the lower end portion, and this flange portion 16 a faces the upper surface of the push pin 14. Therefore, when the lock release button 16 is pushed down in the direction of the push pin 14, the flange portion 16 a presses the end portion of the lock member 12 that is in contact with the push pin 14 and the upper surface of the push pin 14. By this pressing, the lock member 12 is displaced so that the through hole 12a of the lock member 12 is disengaged from the engagement with the large diameter portion 4a of the pipe pipe 4. This displacement is performed when the lock member 12 is in a substantially horizontal state orthogonal to the pipe pipe 4.

  The lock release button 16 is urged away from the push pin 14, the push spring 15, and the lock member 12 by a return spring 17 attached to the upper surface of the head portion 26 of the base 19.

  In FIG. 3, reference numeral 21 denotes a seal attached to the cover 18 so as to be positioned around the pipe tube 4, and prevents water from entering the inside of the head portion 26.

  Next, the operation of this embodiment will be described.

  3 and 4 show a locked state by the lock member 12, and the large-diameter portion 4 a of the pipe pipe 4 is located on the lock member 12. In this state, the push pin 14 moves upward by the push spring 15 of the urging portion, so that the end of the lock member 12 is pushed up by the push pin 14. As a result, the lock member 12 is tilted so as to rise to the left, and due to the tilt displacement in this direction, the through hole 12a of the lock member 12 has a large edge of the pipe pipe 4 as shown in FIG. Engage with and engage with the diameter portion 4a.

  In addition, the first convex portion 13a that is the abutting portion acts to incline the locking member 12 in the same direction as described above when the opposite end of the locking member 12 abuts. As a result, as shown in FIG. 6, the through hole 12 a of the lock member 12 engages with the edge on the opposite side of FIG. 5 engaged with the large diameter portion 4 a of the pipe pipe 4.

  By the engagement shown in FIGS. 5 and 6, the pipe tube 4 is locked by the lock member 12 and maintains its height. In such a locked state, as shown in FIG. 4, a sufficient gap f is formed between the second convex portion 13 b of the contact member 13 and the lock member 12. The hole 12a can be inclined until the large diameter portion 4a of the pipe pipe 4 is sufficiently engaged.

  When the lock release button 16 is pressed as shown in FIG. 7 in this state, the flange portion 16a of the lock release button 16 pushes the lock member 12 downward. For this reason, since the lock member 12 is pushed down by using the first convex portion 13a as a fulcrum, it becomes substantially horizontal. As a result, as shown in FIG. 8, a gap g is formed between the through hole 12 a of the lock member 12 and the large diameter portion 4 a of the pipe pipe 4, and the lock by the lock member 12 is released.

  By releasing the lock, the pipe tube 4 moves upward by the urging force of the tension spring 20. FIG. 9 shows a state in which the pipe pipe 4 is moved upward, and the gap g described above is further increased by the small diameter portion 4b reaching the lock member 12 portion.

  FIG. 10 shows a state where the pressing operation on the lock release button 16 is stopped. In the state of FIG. 10, since the push pin 14 is pushed up by the push spring 15, the lock member 12 is inclined until the end of the lock member 12 comes into contact with the second convex portion 13b. At this time, the 2nd convex part 13b acts so that the inclination amount (displacement amount) of the lock member 12 may be controlled so that the through-hole 12a may not engage with the small diameter part 4b of the pipe pipe 4. That is, the amount of inclination of the lock member 12 is regulated so that a gap h is formed between the small diameter portion 4b of the pipe tube 4 and the through hole 12a of the lock member 12 as shown in FIG. Thereby, even if the operation to the lock release button 16 is released, the lock member 12 does not engage with the small diameter portion 4b, and the pipe tube 4 moves upward by the urging force of the tension spring 20. The movement stops when the movement end (uppermost end) is reached.

  FIG. 12 shows a state in which the pipe tube 4 is pushed down in the opposite direction (downward) after the pipe tube 4 reaches the moving end. At the beginning of the push-down operation, the small diameter portion 4b penetrates the through hole 12a of the lock member 12, and the second convex portion 13b regulates the inclination amount of the lock member 12, so as shown in FIG. A gap h is formed between the small diameter portion 4b and the through hole 12a of the lock member 12, and the pipe tube 4 can be pushed down smoothly. When the large-diameter portion 4a of the pipe pipe 4 reaches the through-hole 12a of the lock member 12 due to this depression, the lock member 12 is displaced (inclined) in the engagement direction, so that the edge of the through-hole 12a is large. Bit into the diameter 4a. For this reason, when the pressing force is released, the pipe tube 4 stops at that position.

  In such an embodiment, since the operation to the lock release button 16 and the push-down operation of the pipe tube 4 are performed separately and independently, these operations can be performed with one hand. For this reason, operativity can be improved.

  Further, after the lock is released by the lock release button 16, the pipe tube 4 is automatically moved to the moving end (uppermost end) by the urging force of the tension spring 20, so that the pipe tube 4 is pushed up to the moving end by hand. There is no need. For this reason, an operation up to the moving end is not necessary, and the operability is further improved.

  After reaching the end of movement, the pipe pipe 4 can be pushed down until the large-diameter portion 4a of the pipe pipe 4 reaches the through hole 12a of the lock member 12, thereby adjusting the height of the pipe pipe 4. Can do. In this case as well, the pipe tube 4 can be moved further downward by pressing the lock release button 16 and displacing (tilting) the lock member 12 in the release direction. 4 can be adjusted to an arbitrary height.

  Furthermore, in this embodiment, since the lock member 12 is structured to be displaced in the engagement and release direction with respect to the pipe tube 4, the pipe tube 4 can move while sliding with the lock member 12. Absent. For this reason, wear of these members is small, durability can be improved, and the friction coefficient does not increase, so that the operating force does not become heavy and no abnormal noise or the like is generated.

  The present invention is not limited to the above embodiment, and various modifications can be made. For example, the locking member 12 is displaced in the direction of engagement with the pipe tube 4 by inclining, but the displacement with the pipe tube 4 is caused by the displacement in the direction in which the locking member 12 approaches and separates from the pipe tube 4. Engagement and release thereof may be performed. Further, as the elastic member for moving and energizing the pipe tube 4, a spring other than the tension spring 20 such as a compression spring or a torsion spring may be used. Further, a plurality of large-diameter portions 4a and small-diameter portions 4b may be alternately formed on the pipe pipe 4.

It is a front view which shows the state which attached the height adjustment apparatus in one embodiment of this invention to the counter. It is an enlarged front view of the attachment state to a counter. It is sectional drawing which shows a locked state. FIG. 4 is an enlarged sectional view of a part A in FIG. 3. It is the B section expanded sectional view in FIG. It is the C section expanded sectional view in FIG. It is sectional drawing which shows the beginning of lock release. It is the D section expanded sectional view in FIG. It is sectional drawing which shows the movement to one direction in a lock release state. It is sectional drawing which shows the movement in a lock release state. It is the E section expanded sectional view in FIG. It is sectional drawing which shows the movement initial stage in the opposite direction in a lock release state. It is sectional drawing which shows the movement to the opposite direction in a locked state. It is the F section expanded sectional view in FIG.

Explanation of symbols

4 Pipe pipe 4a Large diameter portion 4b Small diameter portion 10 Height adjusting device 12 Lock member 12a Through hole 13 Contact member 13a First convex portion (contact portion)
13b 2nd convex part (regulation member)
14 Push pin (biasing part)
15 Press spring (biasing part)
16 Lock release button 19 Base 20 Tension spring (biasing member)

Claims (2)

A long adjustable member which is movable up and down and whose outer side consists of a large diameter portion on the upper side in the longitudinal direction and a small diameter portion on the lower side in the longitudinal direction ;
Has a through hole through which the said small diameter portion and the large diameter portion is inserted, the possible displacement in the direction performing the engagement and release thereof into the adjusting member, the object by engagement of the large-diameter portion A lock member that locks the movement of the adjustment member;
And locking holding means for holding the displacement state of the lock member of the the direction of engagement with the adjusting member,
A regulating member for the locking member with respect to the small diameter portion to regulate the displacement of the locking member such that the disengaged,
A lock release member for displacing the locking member wherein the disengaging direction of the adjusting member,
When the member to be adjusted is biased upward and the unlocking member is pressed, or when the lock member is disengaged by the regulating member at the small diameter portion, the member to be adjusted is adjusted. And an elastic member that pushes up the member.
Said locking retaining means biasing the abutment portion for displacing the locking member in the direction of engagement into the large diameter portion by the lock member abuts, said locking member so as to abut on the abutment portion The height adjusting device according to claim 1 , further comprising:

Images