JP2005106200A - Adjuster - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adjuster capable of easily adjusting height position of a leg without a tool. <P>SOLUTION: This adjuster is provided with a shaft part 3a having external thread 2 formed on an outer circumference surface on one end side thereof, a spindle 3 connected to another end of the shaft part with forming spherical shape of larger diameter than the axial part and composed of a polygon surface spherical part 3b having a section perpendicular to an axis line AL1 of the shaft part chamfered to form a polygon, a socket 5 engaged relatively tiltably with the spindle via polygon recess part 6 in which more than half of the polygon surface spherical part of the spindle can be embedded, and fall-off prevention cap 10 preventing falling off of the socket from the polygon surface spherical part while allowing relative tilting motion of the spindle and the socket at a time of being fitted on an outer circumference surface of the socket. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an adjuster for adjusting the height position of legs of furniture, instruments, devices, stands, and the like.

  Most of this type of adjusters are screwed onto the lower screws of the legs of furniture and appliances. Conventionally, the adjusters include a base and a support shaft attached to the base by a ball joint. Adjusting the height of furniture with nuts attached to this spindle, screw part at the upper end, hemispherical pivot head at the lower end, and tool engaging part between the screw part and the pivot head And a rigid support member provided with a hemispherical recess embedded in the upper surface of the central part of the pedestal member for pivotally supporting the pivot head of the fulcrum member. In addition, support legs with adjustable angles are known.

However, in any of the conventional adjusters, when adjusting the height position of the leg, it is necessary to rotate the support shaft by engaging a tool such as a spanner with a tool engaging portion such as a nut fixed to the support shaft. is there.
Therefore, when moving furniture or utensils, etc., height and level adjustments, especially on outdoor slopes and rough terrain, may require frequent adjustments of height and level every time the location moves. Each time, the rotation of the spindle using a tool is forced, which is cumbersome and troublesome, and a reduction in work efficiency is inevitable.
Japanese Utility Model Publication No. 48-95970 JP 2003-65491 A Japanese Utility Model Publication No. 4-23445

  It is an object of the present invention to provide an adjuster that can easily adjust the height position of a leg without using a tool such as a spanner when rotating a support shaft for adjusting the height position of the leg. And

  The first adjuster of the present invention is an adjuster that is screwed and attached to a screw at the lower end of a leg in furniture, equipment, etc., and adjusts the height position of the leg, and has a male screw formed on the outer peripheral surface on one end side. A shaft portion and a support composed of a spherical portion of a polygonal portion that is connected to the other end of the shaft portion in a spherical shape having a larger diameter than the shaft portion and chamfered so that a cross section perpendicular to the axis of the shaft portion forms a regular polygon. A shaft, a socket that is tiltably engaged with the support shaft through a polygonal recess that can immerse a half of the polygonal spherical portion of the support shaft, and a shaft that is fitted to the outer peripheral surface of the socket and that is supported on the support shaft And a retaining cap that prevents the socket from detaching from the polygonal spherical portion while allowing relative tilting of the socket.

  The second adjuster is an adjuster that is screwed and attached to the screw at the lower end of the leg in furniture, appliances, etc., and adjusts the height position of the leg. And a support shaft comprising a polygonal spherical portion that is connected to the other end of the shaft portion in a spherical shape having a larger diameter than the shaft portion and chamfered so that a cross section perpendicular to the axis of the shaft portion forms a regular polygon. A socket that can be tilted relative to the spindle through a polygonal recess that allows the half of the polygonal spherical portion of the spindle to be immersed, and a spindle and socket that are fitted to the outer peripheral surface of the socket and And a retaining cap that prevents the socket from detaching from the polygonal spherical portion while allowing relative tilting of the socket.

  In the first or second adjuster, the third adjuster includes a base made of a cup-shaped elastic material that covers the bottom surface of the socket and the retaining cap and is fitted to the outer peripheral surface of the retaining cap. It is characterized by.

  According to the first adjuster of the present invention, the rotation of the retaining cap rotates the support shaft constrained by the socket integrated with the retaining cap, so that a tool such as a spanner is not required as in the prior art. The height position of the legs can be easily adjusted, and the working efficiency can be improved.

  According to the second adjuster, like the first one, the rotation of the retaining cap rotates the support shaft constrained by the socket integrated with the retaining cap, so that the height position of the leg is adjusted. Can be easily performed.

  Further, according to the third adjuster, the outer peripheral surface of the retaining cap and the bottom surface of the retaining cap and the socket are covered with the elastic material in addition to the effects of the first or second one. It is possible to prevent the appliances from slipping and to protect the retaining cap and the socket.

The support shaft may be formed by integrally forming the shaft portion and the polygonal spherical portion with a metal, or may be formed by insert molding a polygonal spherical portion of a synthetic resin on the metal shaft portion.
Examples of the regular polygon of the polygonal spherical portion having a cross section perpendicular to the axis of the shaft portion of the support shaft include a regular triangle, a square, a regular pentagon, a regular hexagon, a regular heptagon, a regular octagon, and others.
The retaining cap is attached to the outer peripheral surface of the socket by tightly fitting and driving the retaining cap to the outer peripheral surface of the socket, or by caulking the opening end of the retaining cap fitted to the socket, or by a screw or a knock pin. It is made by fixing that doubles as
As the elastic material of the pedestal, rubber or the like is used, and it is preferable that unevenness or a knurl for preventing slipping is formed on the inner and outer surfaces thereof.
Further, in order to prevent inadvertent detachment of the pedestal and the retaining cap, it is preferable to form steps with different diameters on the peripheral surfaces of both.
On the other hand, in order to prevent loosening of the screw of the supporting shaft that is screwed with the screw at the lower end of the leg, it is preferable to include a locking nut that is screwed to the male screw of the supporting shaft or the screw rod of the leg. It is preferable that the shape can be easily rotated.

  1, 2, 3, 4, 5, and 6 are a perspective view, an exploded perspective view, and a longitudinal section that passes through a diagonal line of a hexagonal spherical portion of a support shaft, respectively, according to the first embodiment of the present invention. Figure, Longitudinal section through the opposite side center line of the hexagonal spherical part of the support shaft, perspective view showing the state of use for vertical legs such as furniture and equipment, and state of use for inclined legs such as furniture and equipment It is a perspective view shown.

  This adjuster 1 has an outer peripheral surface on one end side (the upper end side in FIGS. 1 to 6) of a male screw 2 that is screwed into a female screw (not shown) that opens to the lower end surface of a leg L in furniture, appliances, devices, stands, and the like. A shaft section 3a formed on the shaft 3a, and the other end of the shaft section 3a (the lower end in FIGS. 1 to 6) having a spherical shape having a larger diameter than the shaft section 3a and a cross section perpendicular to the axis of the shaft section 3a Is provided with a support shaft 3 (see FIGS. 7 and 8) which is chamfered so as to form a regular hexagon and is composed of a substantially circular surface 3c and a hexagonal spherical portion 3b having an elliptical ridgeline 4.

A cup-shaped socket 5 (see FIGS. 9 and 10) in which a half of the hexagonal spherical portion 3b of the support shaft 3 can be immersed is formed by a regular hexagonal square hole 6a and a conical surface 6b connected to the lower end thereof. axis AL ₂ axes AL ₁ and the socket 5 of the support shaft 3 through a hexagonal recess 6 have been engaged relatively tiltably engaged in a range at an angle of up to about 30 ° being, the relative tilt Is possible in the range of 360 ° around the axes AL ₁ , AL ₂ .
The socket 5 is formed with a through-hole 7 in the center of the bottom portion and chamfered 8 on the outer peripheral edge of the bottom portion for facilitating fitting with a later-described retaining cap or the like and draining water. .

On the outer peripheral surface of the socket 5, a conical hole 9 is formed in the ceiling portion so as to prevent the socket 5 from being detached from the hexagonal spherical portion 3b while allowing the pivot 3 and the socket 5 to be relatively tilted. A cylindrical retaining cap 10 (see FIGS. 11 and 12) is fitted by tight fitting.
And in order to prevent the detachment of the pedestal, which will be described later, on the outer periphery of the retaining cap 10, a stepped portion 11 with a different diameter is formed by reducing the outer diameter on the ceiling side, and the fitting with the pedestal is facilitated. Therefore, a chamfer 12 is applied to the outer peripheral edge at the lower end.

A cup-shaped pedestal made of an elastic material such as rubber is provided on the outer peripheral surface of the retaining cap 10 in order to prevent slipping of furniture, instruments, etc. with respect to the installation surface and to prevent damage to the retaining cap 10 and the socket 5. 13 covers the bottom surface of the socket 5 and the retaining cap 10, and engages the different diameter step 14 formed with a smaller inner diameter on the opening end side with the different diameter step 11 of the retaining cap 10. It is fitted by a tight fit.
The bottom of the base 13 is formed with a through hole 15 in the center of the bottom for facilitating the fitting of the retaining cap 10 and the socket 5 and draining water, and prevents slipping with the installation surface. Therefore, a circular recess 16 and a groove 17 are formed on the outer bottom surface.

  In FIG. 1 to FIG. 6, reference numeral 18 denotes a locking nut that is screwed onto the male screw 2 of the support shaft 3. The locking nut 18 is formed in a petal shape in plan view to facilitate rotation by the operator's hand. ing.

  In order to adjust the height position of the legs L of furniture, appliances, etc. using the adjuster 1 having the above-described configuration, the operator holds the base 13 after loosening the locking nuts 18 and lifting the legs L appropriately. Then, it rotates appropriately, and after that, the locking nut 18 is pressed against the lower end surface of the leg L.

  FIG. 15 is a perspective view of an adjuster according to a second embodiment of the present invention.

  This adjuster 1 'is the same as that of the first embodiment in that the support shaft 3 has a shaft portion 3a formed on the outer peripheral surface on one end side with a male screw 2 that is screwed into a female screw that opens at the lower end surface of the leg L in furniture, appliances or the like. Is provided with a female screw 21 that engages with a threaded rod 20 projecting from the lower end surface of a leg L ′ in furniture, appliances, devices, stands, etc., on one end side (upper end side in FIG. 15). The shaft portion 3a ′ formed on the shaft 3a and the other end (lower end in FIG. 15) of the shaft portion 3a ′ are connected in a spherical shape having a larger diameter than the shaft portion 3a ′, and are perpendicular to the axis of the shaft portion 3a ′. The cross section is chamfered so as to form a regular hexagon, and is provided with a support shaft 3 'composed of a substantially circular surface 3c and a hexagonal spherical portion 3b having an elliptical ridgeline 4.

  Since other configurations and operations are substantially the same as those of the first embodiment, the same constituent members and the like are denoted by the same reference numerals and description thereof is omitted.

  In the above-described embodiments, the case has been described in which the base 13 made of a cup-shaped elastic material that covers the bottom surfaces of the socket 5 and the retaining cap 10 and is fitted to the outer peripheral surface of the retaining cap 10 is provided. If it is not necessary to consider slipping of the installation surface, it is not necessary to provide the pedestal 13.

It is a perspective view of the adjuster of Example 1 which concerns on this invention. It is a disassembled perspective view of the adjuster of FIG. It is a longitudinal cross-sectional view which passes along the diagonal of the hexagonal surface spherical part of the spindle in the adjuster of FIG. It is a longitudinal cross-sectional view which passes along the opposing side centerline of the hexagonal surface spherical part of the spindle in the adjuster of FIG. It is a perspective view which shows the use condition of the adjuster of FIG. It is a perspective view which shows the use condition to the leg which inclined the adjuster of FIG. It is a front view of the spindle in the adjuster of FIG. It is a top view of the spindle of FIG. It is a longitudinal cross-sectional view of the socket in the adjuster of FIG. FIG. 10 is a plan view of the socket of FIG. 9. It is a longitudinal cross-sectional view of the retaining cap in the adjuster of FIG. FIG. 12 is a bottom view of the retaining cap of FIG. 11. It is a longitudinal cross-sectional view of the base in the adjuster of FIG. It is XIV-XIV sectional view taken on the line in FIG. It is a perspective view of the adjuster of Example 2 which concerns on this invention.

Explanation of symbols

2 male screw 3 support shaft 3 'support shaft 3a shaft portion 3a' shaft portion 3b hexagonal surface spherical portion 3c surface 4 ridge line 5 socket 6 hexagonal recess 6a square hole 6b conical surface 9 conical hole 10 retaining cap 11 different diameter step portion 13 base 14 Different diameter step 20 Threaded rod 21 Female thread L Leg L 'Leg AL ₁ axis AL ₂ axis

Claims (3)

  An adjuster that adjusts the height position of the leg by screwing it to the screw at the lower end of the leg in furniture, appliances, etc., and that has a male part formed on the outer peripheral surface on one end side, and the other end of the shaft part The support shaft is composed of a polygonal spherical portion that has a spherical shape larger in diameter than the shaft portion and is chamfered so that a cross section perpendicular to the axis line of the shaft portion forms a regular polygon, and a polygonal spherical shape of the support shaft A socket that can be tilted relative to the spindle through a polygonal recess that can immerse almost half of the part, and is fitted to the outer peripheral surface of the socket and allows relative tilting of the spindle and socket. An adjuster comprising: a retaining cap that prevents the socket from being detached from the polygonal spherical portion.   An adjuster that adjusts the height position of the leg by screwing it to the screw at the lower end of the leg of furniture or appliances, etc. A support shaft composed of a polygonal spherical portion that has a spherical shape with a diameter larger than that of the shaft portion and is chamfered so that a cross section perpendicular to the axis of the shaft portion forms a regular polygon, and a polygonal surface of the support shaft A socket that is tiltably engaged with the spindle through a polygonal recess that can immerse the half of the spherical part, and a relative tilt between the spindle and the socket that is fitted to the outer peripheral surface of the socket and An adjuster comprising a retaining cap that allows the socket to be removed from the polygonal spherical portion while allowing. The adjuster according to claim 1 or 2, further comprising a pedestal made of a cup-shaped elastic material that covers a bottom surface of the socket and the retaining cap and is fitted to an outer peripheral surface of the retaining cap.

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