JPS6120626Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a piano caster fixing device that can prevent a piano having casters from moving or falling over unnecessarily.

Since pianos are generally heavy, casters are provided on the bottom of the piano to facilitate movement. However, when a piano is installed on the floor, etc., it is installed via casters, so there is a risk that it may move or fall unnecessarily in the event of an earthquake, which is not only dangerous, but also causes damage to itself and its surroundings. There was a problem that there was a risk of damaging walls, etc.

This idea was made in view of the above circumstances,
The purpose of this device is to provide a piano caster fixing device that can prevent the piano from moving or falling over unnecessarily. The rotating wheel supporting portion of the caster is directly pressed against the movement preventing portion provided on the fixed member so as not to swing, and the rotating wheel is placed in a capture storage space formed by the holding member and the fixed member. It was designed to do so.

Each embodiment of this invention will be described below with reference to the drawings. First, the first embodiment will be described with reference to FIGS. 1 to 3. In the figure, reference numeral 1 denotes a fixing member made of metal, and this fixing member 1 has first side plates 3, 3 extending vertically downward at the left and right ends of an upper plate 2, and the lower ends of these side plates 3, 3. One end portion of lower plates 4, 4 extending horizontally outward is connected to the portion, and second side plates 5, 5 extending vertically upward are connected to the other end portion of these lower plates 4, 4. Further, circular holes 6, 6 are formed at predetermined locations on the first side plates 3, 3, and screw mounting holes 7, 7 are formed at predetermined locations on the lower plate 4.4, Approximately U-shaped notches 8, 8 are formed at predetermined locations on the second side plates 5, 5, and cutouts 8, 8 are formed at predetermined locations on the first side plates 3, 3 at predetermined angles. The configuration is such that an inclined surface 9 is formed with an angle of . In this case, this inclined surface 9 serves as a movement blocking portion against which a rotary wheel support portion of a caster, which will be described later, comes into contact. Reference numeral 10 denotes a holding member made of metal, and this holding member 10 has a generally E-shaped cross section as a whole by connecting symmetrical members to each other, and has round bars on both outer plates 11, 11 and inner plate 12. 13 is penetrated,
Circular holes 14, 14 are provided at the tips of both outer plates 11, 11.
is formed, and a concave surface 15 curved with a predetermined radius of curvature is formed at the tip of the inner plate 12. The holding member 10 and the fixing member 1 form a space for capturing and storing a caster vehicle, which will be described later. 1
6 is a caster, for example, an upright piano,
A mounting member 17 is attached to the bottom of the grand piano with wood screws or the like, an inverted U-shaped leg 19 is rotatably attached to the mounting member 17 via a shaft 18, and a shaft 220 is attached to the leg 19. It consists of a wheel (rotating wheel) 21 which is rotatably attached via a rotary wheel, and the portion other than the wheel 21 constitutes a rotary wheel support section, which supports the wheel 21 in a swingable manner.

Therefore, when installing a piano with casters as described above on the floor, first place the casters 16 in the space formed by the upper plate 2 of the fixing member 1 and the first side plates 3, 3. The first side plate 3 of the fixed member 1,
The inclined surfaces 9, 9 of the caster 16 are brought into contact with respective corresponding locations of the legs 19 of the caster 16, and the inner surface of the upper plate 2 of the fixed member 1 is brought into contact with the wheels 21 of the caster 16, and the lower plates 4, 4 thereof are brought into contact with the wheels 21 of the caster 16. position on the floor.
Next, wood screws or bolts (not shown) are inserted into the screw attachment holes 7, 7 of the lower plates 4, 4 of the fixing member 1 and screwed into the floor, thereby fixing the fixing member 1 to the floor. This rear presser member 10 is fixed to the fixing member 1
is placed inside the second side plates 5, 5 and outside the first side plates 3, 3, and both ends of the round bar 13 of the holding member 10 are inserted into the notches of the second side plates 5, 5 of the fixing member 1. 8,
8 and the concave surface 15 of the inner plate 12 thereof.
are brought into contact with the wheel 21 of the caster 16, and the circular holes 14, 14 in the outer plates 11, 11 are aligned with the circular holes 6, 6 in the first side plates 3, 3 of the fixing member 1. Next, the bolt 22 is passed through the thus matched circular hole, and the nut 23 is screwed onto the tip of the bolt 22 and tightened, thereby attaching the holding member 10 to the fixing member 1. Thus, the caster 16 is fixed to the floor surface by the fixing member 1 and the pressing member 10. Particularly in this case, the legs 19, which are the rotating wheel supporting parts of the caster 16, are directly pressed against the fixing member 1 and fixed, so that swinging is stopped and the caster 16 is effectively fixed without wobbling at all. . Moreover, Caster 16 car 2
1 is disposed and fixed within the capture storage space formed by the fixing member 1 and the holding member 10, so that the caster 16 can also be prevented from being pulled out upward. Therefore, the piano can be prevented from moving horizontally or vertically unnecessarily, and the car 21 that is lifted when the piano is about to fall can be prevented.
By catching this, you can prevent the piano from falling.

Next, a second embodiment of this invention will be described with reference to FIGS. 4 to 6. In this embodiment, the fixing member 31 is formed of a cast metal, and is placed at a predetermined location on a substantially rectangular main body 32.
A caster storage recess 34 having a recess 33 curved with a predetermined radius of curvature is formed in a part, and a part of the inner surface of the recess 34 is moved so that the rotary wheel support part of the caster 16 comes into contact with it. It is considered to be a blocking part. Further, a screw hole 35 is formed at a predetermined location of the main body 32, and the main body 3
Screw mounting holes 37, 37 are formed in protruding portions 36, 36 at both lower end portions of 2. A presser bolt 38 serving as a presser member is screwed into the screw hole 35 of the fixing member 31. Then, by this presser bolt 38 and fixing member 31, the car 2
A space for capturing and storing 1 is formed. Incidentally, since the caster has the same configuration as that of the first embodiment, the same reference numerals are given and the explanation thereof will be omitted.

Therefore, when installing a piano with casters as described above on the floor, first position the fixing member 31 at a predetermined location on the floor, and then tighten the wood screws or bolts (not shown). Screw mounting holes 3 of the protrusions 36, 36 of the fixing member 31
7, 37 and screwed into the floor surface, thereby fixing the fixing member 31 to the floor surface. After that, the wheel 21 of the caster 16 is inserted into the caster storage recess 34 of the fixed member 31 and brought into contact with the recess 33, and a part of the mounting member 17 of the caster 16 is brought into contact with the inner surface of the recess 34, Next, even after tightening the retainer bolt 38, the tip of the caster 16
the car 21. Thus, caster 1
6, a part of the mounting member 17 is strongly pressed against the inner surface of the recess 34 of the fixing member 1, and the vehicle 21
are arranged in the catch storage space and pressed against the inner surface of the recess 33 of the fixing member 31, thereby being fixed to the floor surface. Therefore, in this embodiment as well, the piano with the casters 16 is prevented from moving or falling unnecessarily. can be prevented. In this case as well, the swinging of the head is stopped as in the previous embodiment, and
It is possible to capture the car 21 and prevent it from being pulled upward.

Next, a third embodiment of this invention will be described with reference to FIGS. 7 to 9. In this embodiment, the fixing member 41 made of metal is provided with side plates 43, 43 extending rearward at both ends of a front plate 42, and these side plates 43, 43 and the front plate 4
A lower plate 4 extending horizontally outward at the lower end of the
4, 44 and 45 are arranged in series, and these lower plates 44,
44 and 45 have screw mounting holes 46, 46 and 47
is formed, and round bars 48 are horizontally suspended at predetermined locations on the side plates 43, 43. In this case, this round bar 48 is a movement prevention part against which the rotary wheel support part of the caster 16 comes into contact. Further, both ends of a substantially U-shaped swinging member 49 are rotatably attached to the round bar 48 of the fixed member 41. An auxiliary plate 50 is fixed to the central portion of the swinging member 49, and a screw hole 51 is formed in the central portion of this portion. This screw hole 51 has a presser bolt 5 as a presser member.
2 is screwed on. And this presser bolt 5
2 and the fixing member 41 form a space in which the vehicle 21 is captured and stored. In addition, since the caster has substantially the same structure as the first embodiment, the same reference numerals are given and the explanation thereof will be omitted.

Therefore, when installing a piano with casters as described above on the floor, first place the wheels of the casters 16 in the space formed by the round bar 48 of the fixed member 41 and the swinging member 49. 21 relatively, and the round bar 48 of the fixing member 41 comes into contact with each corresponding location of the leg 19 of the caster 16 and the wheel 21, and then a wood screw or bolt (not shown) is inserted under the fixing member 41. The fixing member 41 is fixed to the floor by inserting it into the screw attachment holes 46, 46, 47 of the plates 44, 44, 45 and screwing it into the floor. Thereafter, the presser bolt 52 is tightened to bring its tip into contact with the corresponding portions of the shaft 18 of the caster 16 and the wheel 21. In this way, the caster 16 is fixed by the fixing member 41 and the holding bolt 52 so that it cannot swing on the floor, and the car 21 is placed in the catch storage space and is fixed so that it cannot be pulled upward. Even in this example, the piano having casters 16 can be prevented from moving or falling down unnecessarily.

In each of the above embodiments, a case has been described in which the fixing member is directly fixed to the floor surface, but the present invention is not limited to this. It may also be arranged in a fixed manner. Further, the materials and shapes of the component parts, their relative arrangement, etc. are not limited to the above embodiments, and can be modified in various ways without departing from the gist of the invention.

As explained above, according to the piano caster fixing device according to this invention, a presser member is attached to a fixing member fixed to a floor surface etc., and the rotating wheel support part of the caster is fixed to the fixing member by the presser member. The structure is such that it is held down so that it cannot swing directly against the provided movement prevention part, and the rotating wheel is placed in the capture storage space, so it is extremely effective compared to simply fixing the rotating wheel of the caster. It is possible to prevent the piano from moving horizontally, moving up and down, or falling over unnecessarily, which in turn improves earthquake resistance and is not only safer, but also prevents damage to the piano itself or the surrounding walls. Moreover, the structure is simple, the installation is simple, and there is no need to change the design of the piano itself.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the first embodiment of this invention;
Figure 2 is a longitudinal cross-sectional side view taken along - in Figure 1;
The figure is a perspective view of the main part, and Figure 4 is the second part of this invention.
A longitudinal sectional front view showing the embodiment, FIG. 5 is the − of FIG. 4.
FIG. 6 is a perspective view of the main parts, FIG. 7 is a vertical front view showing the third embodiment of this invention, and FIG. 8 is a vertical side view taken along line - in FIG. 6. , FIG. 9 is a perspective view of the main parts thereof. DESCRIPTION OF SYMBOLS 1, 31, 41... Fixing member, 9... Inclined surface (movement prevention part), 10... Pressing member, 16... Caster, 17... Mounting member, 19... Leg, 20...
...wheel (rotating wheel), 22...bolt, 34...caster storage recess, 38, 52...presser bolt,
48... Round bar (movement prevention part), 49... Swinging member.

Claims (1)

[Scope of utility model registration request] A caster fixing device for a piano equipped with a caster consisting of a rotary wheel and a rotary wheel support portion that swingably supports the rotary wheel, the device having a movement prevention portion against which the rotary wheel support portion of the caster is brought into contact with the floor or the like. The holding member includes a fixing member that is fixed separately from the piano, and a pressing member that is attached to the fixing member and presses against the movement prevention portion so as to stop the swinging of the rotary wheel support portion of the caster. A piano caster fixing device, characterized in that a space for capturing and storing the rotary wheel is formed by the fixing member and the fixing member.