JP4472062B2 - Fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fixing device including a fixing device to which various articles are fixed, and more particularly, to a fixing device capable of firmly attaching the fixing device only from the surface side of an attachment hole formed in an attachment destination. .
[0002]
[Prior art]
When attaching various items to walls or ceilings that are difficult to install from the inside, for example, when attaching a faucet to a sink or a wash basin, it must be done to fix the faucet from the bottom of the sink or the wash basin. Don't be.
Since such work is a work in a narrow and dark place, workability is poor, and there is a problem that a dedicated tool is required and the installation time is long.
[0003]
Therefore, as a countermeasure against the above, after inserting the holding plate connected to the faucet fixture with a bolt into the faucet mounting hole in the top plate of the sink from above, tighten the bolt to water the top plate. Several faucet attachment structures have been proposed that enable the faucet to be attached to the faucet fixture fixed to the sink by only being operated from above by being sandwiched between the stopper fixture and the presser plate.
[0004]
One solution is to insert the retainer, which is integrally connected with an annular faucet fixture (fixing base) and bolt, into the faucet mounting hole in the top plate while tilting it, and then tighten the bolt. A faucet attachment that fixes the faucet fixture to the top plate by turning and pinching the top plate between the presser plate placed on the back side of the top plate and the faucet fixture placed on the front side of the top plate A structure has been proposed (JP-A-8-93012).
[0005]
In this faucet mounting structure, after the presser plate is inserted into the faucet mounting hole in an inclined position, the bolt is pulled up to engage the slit formed in the presser plate and the protrusion provided on the nut, and then By tightening the bolt and sandwiching the top plate between the faucet fixture and the presser plate, the faucet fixture is fixed to the top plate by operation from above.
[0006]
[Problems to be solved by the invention]
However, in the above conventional method, in order to prevent the bolt and nut from rotating together, the presser plate integrated with the nut is prevented from rotating by utilizing the sliding resistance by applying the presser plate to the back surface of the top plate. Since the bolt is fastened to the nut, an operation of pulling up the bolt and engaging the holding plate with the bolt is required.
In addition, in order to confirm the engagement state of the presser plate and the bolt, it is necessary to look into the faucet mounting hole from above and check the position of the presser plate.
[0007]
Here, the presser plate and the bolt are engaged in advance at the upper part of the faucet mounting hole, and the cap is inclined when inserted into the faucet mounting hole, so that the presser plate is inclined to the faucet mounting hole. It is also possible to insert it in
However, since the faucet fixing metal fitting is disposed above the presser plate, if the bolt is too short, the faucet fixing metal metal bumps against the surface of the top plate, making insertion difficult.
Therefore, in order to smoothly insert the presser plate into the faucet mounting hole formed on the top plate having a thickness of, for example, 30 mm, it is necessary to lengthen the bolt, and the number of tightening of the bolt after insertion increases.
[0008]
The present invention has been made in view of such circumstances. The purpose of the present invention is to make it possible to attach the fixing device to the attachment destination with good workability, and to fix the fixing device and thus the article firmly over a long period of time. It is to do.
[0009]
[Means for Solving the Problems]
The fixing device according to the present invention includes a fixing tool to which various articles are fixed, and a pressing plate that sandwiches an attachment destination together with the fixing tool, and a bolt that rotatably inserts the fixing tool and is screwed into the pressing plate. In addition to being connected, the bolt is arranged eccentrically from the center of the fixture, and an elastic member is installed between the fixture and the presser plate. In such a configuration, it is preferable that the bolt be arranged eccentrically from the center of the presser plate.
In addition, as the elastic member, with the bolt as the central axis, the presser plate can be revolved so as to be retractable from the position facing the fixing tool, and the presser plate is automatically returned to the original facing position from the retracted state. A member that can be used, that is, a piano wire, a coil spring, or the like that has good deformability and strong restoring force is preferably used.
[0010]
The mounting method of the fixing device according to the present invention is a method of inserting into a mounting hole having a diameter smaller than the outer diameter of the presser plate and mounting it to a predetermined mounting destination, and turning the presser plate with the bolt as a central axis. Thus, the step of retracting the presser plate from the position facing the fixture, and the tilting of the bolt with respect to the axis of the mounting hole while maintaining the retracted state, And a step of returning the presser plate to a position facing the fixture by a restoring action of the elastic member in a state where the presser plate is inserted into the mounting hole. .
[0011]
In the above configuration, when inserting into the mounting hole, the presser plate can be retreated from the position facing the fixture by turning the presser plate, so the bolt is inclined with respect to the axis of the mounting hole. However, when the presser plate is inserted, the presser plate can be easily inserted without causing the fixture to interfere with the attachment destination.
Also, even if the distance between the fixture and the presser plate is short, interference between the fixture and the mounting destination can be avoided, so the bolt length can be shortened and the number of bolt tightening after insertion can be reduced. Is possible.
[0012]
Moreover, after the insertion into the mounting hole, the holding plate automatically returns to the position facing the fixture due to the restoring action of the elastic member, so it is not necessary to confirm the position of the screw hole by looking into the upper part of the mounting hole, Workability is improved.
Further, since the screw hole is directly formed in the presser plate, the operation of pulling up the bolt and engaging with the nut as in the above-described conventional example is unnecessary, and the workability is further improved.
[0013]
Further, in the above configuration, if the fixing tool and the presser plate are connected with two bolts arranged so as to be separated from each other, a burr when the mounting hole is made remains on the back side of the mounting destination. Even if a part around the mounting hole is missing, the mounting destination can be firmly tightened by the fixture and the presser plate.
[0014]
Further, in the above configuration, a taper portion having a diameter larger than that of the bolt is formed in an upper portion of one screw hole screwed with the bolt far from the elastic member among the screw holes screwed with the two bolts. If this is done, the position of the presser plate is not completely restored, and even if the position facing the fixture is slightly displaced, the bolt can be guided to the screw hole by the guide function of the tapered portion. In addition, the bolt can be securely tightened.
[0015]
Furthermore, in the above configuration, when the article to be fixed to the fixture is a faucet, also for an attachment destination that is forced to perform faucet installation work from below such as a sink or a wash basin, It is possible to easily and firmly attach the fixing device only by construction from above. Therefore, the faucet fixed to the fixture is also firmly fixed for a long time.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an overall configuration diagram showing a faucet fixing device according to an embodiment of the present invention.
The faucet fixing device includes a faucet fixing bracket (fixing tool) 1 for fixing the faucet, a presser plate 2 for sandwiching a top plate such as a sink and a wash basin together with the faucet fixing bracket 1, and a faucet fixing. Bolts 3 and 4 for connecting the metal fitting 1 and the presser plate 2, and a support pin (elastic member) 5 having resilience provided between the faucet fixing metal fitting 1 and the presser plate 2 are provided.
[0017]
On the inner peripheral side of the annular faucet fixing metal fitting 1 are bolt support portions 11, 12 arranged opposite to and spaced from each other in the diameter direction, and support pin support arranged so as to circumscribe one of the bolt support portions 11. Part 13 is provided.
The bolt support portions 11 and 12 are formed with bolt holes 3A and 4A that are rotatably inserted with the upper ends of the bolts 3 and 4 being prevented from coming off, and the support pin support portion 13 is provided with a support pin. A support pin hole 5A into which the upper end of 5 is inserted and fixed is formed.
[0018]
On the other hand, the presser plate 2 having a substantially arc shape in plan view has two screw holes 3B and 4B into which the bolts 3 and 4 are screwed together, and a support pin hole in which the lower end portion of the support pin 5 is freely movably fitted. 5B is formed.
The screw holes 3B and 4B and the support pin hole 5B are respectively formed corresponding to the bolt holes 3A and 4A and the support pin hole 5A on the faucet fixing bracket 1 side.
[0019]
The faucet fixing bracket 1 and the presser plate 2 are bolts 3 and 4 inserted through the bolt holes 3A and 4A of the faucet fixing bracket 1 while passing the lower end portion of the support pin 5 through the support pin hole 5B of the presser plate 2. By screwing the lower end of the screw into the screw holes 3B and 4B of the presser plate 2, they are arranged to be opposed to each other.
At this time, the bolts 3, 4 are arranged eccentrically from the center O 1 of the faucet fixing metal fitting 1 and the center O 2 of the holding plate 2, and in the vicinity of one bolt 3, the support pin 5 is connected to the faucet fixing metal fitting 1. It will be in the state erected between the presser plate 2.
[0020]
Here, the center O1 of the faucet fixing metal fitting 1 according to the present embodiment refers to the radial center of the water faucet fixing metal fitting 1 having an annular shape, and the center O2 of the presser plate 2 has an arc shape. The intermediate point of the center line along the circumferential direction of the presser plate 2 shall be said.
Further, the bolt 3 closer to the support pin 5, that is, the tip of the bolt 3 serving as the central axis when the presser plate 2 is turned, is prevented from falling off after the presser plate 2 is screwed into the screw hole 3B. It is preferable to attach a retaining ring 6 for this purpose.
As the support pin 5, for example, a piano wire, a coil spring, or the like is used that has good deformability and strong restoring force.
[0021]
Next, a procedure for attaching the faucet fixing device having the above configuration to the top plate 21 such as a sink or a washstand will be described.
It is assumed that a faucet mounting hole 22 having a smaller diameter than the faucet fixing bracket 1 and the presser plate 2 is formed in the top plate 21 in advance as a faucet mounting hole.
Therefore, the presser plate 2 cannot be inserted into the faucet mounting hole 22 if it remains parallel to the top plate 21.
[0022]
Therefore, in order to insert the presser plate 2 of the faucet fixing device into the faucet mounting hole 22, first, as shown in FIG. The metal fitting 1 and the presser plate 2 are connected so as to face each other.
Next, as shown in FIG. 3, the holding plate 2 is turned in parallel with the faucet fixing bracket 1 with the bolt 3 as the central axis. That is, the presser plate 2 is turned in the same plane.
[0023]
At this time, since the support pin 5 allows its own torsion due to its elasticity, the presser plate 2 is connected to the faucet fixing bracket 1 with the bolt 3 inserted eccentrically from the center O1 of the faucet fixing bracket 1 as a central axis. Retreat from the facing position.
In this case, in order to most effectively avoid the interference between the presser plate 2 and the top plate 21 at the time of insertion, the presser plate 2 is turned 90 degrees with reference to the original position in FIG.
Next, as shown in FIG. 4, the presser plate 2 is inserted into the faucet mounting hole 22 while tilting the bolt 5 with respect to the axis of the faucet mounting hole 22 while maintaining the retracted posture of the presser plate 2.
[0024]
Then, in the case of FIG. 4, the faucet fixing bracket 1 does not hit the top plate 21 even if the bolt 3 is shortened because there is no faucet fixing bracket 1 at the position facing the holding plate 2 as shown in FIG. 5. In addition, only the presser plate 2 can be easily inserted into the faucet mounting hole 22.
In particular, in this embodiment, the bolts 3 and 4 are decentered from the centers O1 and O2 of the faucet fixing bracket 1 and the presser plate 2, so that the presser plate 2 is largely retracted from the facing position of the faucet fixing bracket 1. Therefore, the insertion operation into the faucet mounting hole 22 can be performed more easily.
[0025]
After the presser plate 2 is inserted, the presser plate 2 automatically returns to the state shown in FIG. 2 due to the elastic restoring action of the support pin 5. Even if it is not carried out, the other bolt 4 is simply inserted into the faucet mounting hole 22 through the support pin hole 4A, and the bolt 4 is screwed into the screw hole 4B as it is.
[0026]
At this time, if the taper portion 31 having a diameter larger than that of the bolt 4 is formed in the upper portion of the screw hole 4B as shown in FIG. 6, the position return of the holding plate 2 is not complete, and the bolt 4 and the screw hole 4B Even if there is a slight deviation in the shaft center, the bolt 4 is naturally guided to the screw hole 4B as long as the tip of the bolt 4 comes into contact with the inner surface of the taper portion 31. It can be screwed into the screw hole 4B.
[0027]
When the bolts 3 and 4 are tightened, the top plate 21 is sandwiched between the faucet fixing bracket 1 and the presser plate 2, and the faucet fixing bracket 1 is firmly attached to the top plate 21.
Incidentally, the tapered portion 31 is formed such that the upper surface opening of the presser plate 2 has a larger diameter than the bolt 4 and gradually decreases in diameter from the upper surface toward the lower surface.
[0028]
In the present embodiment, the faucet fixing bracket 1 and the presser plate 2 are connected using the two bolts 3 and 4, but the number of bolts may be one or three or more. .
However, if there are three or more bolts, the faucet mounting hole 22 becomes relatively narrow, so that the workability at the time of insertion is reduced, or if it is tightened at both ends with two bolts, it will be further other than both ends Even if this part is tightened, the improvement of the fastening force cannot be expected so much, so there is a possibility that it lacks practicality.
[0029]
In the present embodiment, the faucet is taken as an example of the article fixed to the faucet fixing metal fitting 1, but the present invention is applicable not only to the faucet but also to a fixing device for fixing other articles. Of course there is nothing.
[0030]
【The invention's effect】
As described above, according to the fixing device and the mounting method of the present invention, the following effects can be obtained.
(A) Since the presser plate is retracted from the position facing the fixing tool and inserted into the mounting hole, it is possible to effectively avoid interference between the fixing tool and the mounting destination without increasing the bolt length. The presser plate can be easily inserted into the mounting hole and the number of tightening times of the bolt can be reduced. In particular, when the bolt is eccentric from the center of the fixture and the presser plate, the presser plate can be largely retracted from the opposing position of the fixture, and the insertion work into the mounting hole can be performed more easily. .
(B) After the presser plate is inserted into the mounting hole, the presser plate automatically returns to the position facing the fixture, so that the bolt can be easily tightened without checking the position of the screw hole. In particular, if the upper part of the screw hole has a taper part with a diameter larger than that of the bolt, the bolt is guided to the screw hole by the guide function of the taper part even if the position of the presser plate is not completely restored. Can be easily and reliably performed.
(C) When the fixture and the presser plate are connected by two bolts, very strong tightening can be performed without impairing the workability of insertion into the mounting hole.
Therefore, it is possible to firmly fix the fixing device and the article fixed thereto to a predetermined attachment destination for a long time.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing an embodiment of a fixing device according to the present invention.
FIG. 2 is a view showing a state before the faucet mounting hole of the fixing device is inserted.
FIG. 3 is a view showing a state when the faucet mounting hole of the fixing device is inserted.
4 is a view showing a state where the fixing device in the state of FIG. 3 is inserted into the faucet mounting hole. FIG.
5 is a view showing a state where the fixing device in the state of FIG. 1 is inserted into the faucet mounting hole as it is for comparison with FIG. 4;
FIG. 6 is a view showing a configuration example of a presser plate in which a taper portion is formed in the upper part of a screw hole.
[Explanation of symbols]
1 Faucet fixing bracket (fixture)
2 Presser plate 3, 4 Bolt 3A, 4A Bolt hole 3B, 4B Screw hole 5 Support pin (elastic member)
5A, 5B Support pin hole O1 Center of faucet fixing bracket (center of fixture)
Center of O2 presser plate

Claims (5)

A fixing tool to which various articles are fixed, and a pressing plate that sandwiches an attachment destination together with the fixing tool are connected by a bolt that is rotatably inserted into the fixing tool and screwed to the pressing plate,
The bolt is arranged eccentric from the center of the fixture;
An elastic member is provided between the fixture and the presser plate, and the fixing device.   The fixing device according to claim 1, wherein the bolt is arranged eccentrically from the center of the presser plate.   The fixing device according to claim 1 or 2, wherein the fixing tool and the presser plate are connected by two bolts arranged to be separated from each other.   A taper portion having a diameter larger than that of the bolt is formed in an upper portion of one screw hole screwed with the bolt far from the elastic member among the screw holes screwed with the two bolts. The fixing device according to claim 3.   The fixing device according to claim 1, wherein the article fixed to the fixing tool is a faucet.

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