JPH09187331A - Support leg - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrest the excessive screwing of a screw to prevent the breakage, facilitate the mounting on a body to be supported, and provide an excellent appearance. SOLUTION: When a cantilever-like claw 20 formed on the cylindrical part 18 of a pedestal 14 is inserted to a mounting hole 22, it is engagingly locked by the hole edge of the mounting hole 22, whereby a support leg 10 can be mounted on a placing base 12 in a single operation. When a leg body 16 is rotated to loosen a male screw 34, a contact plate 46 makes contact with a contact wall 48 before the lower end of the cylindrical part 18 and the lower end of a skirt 28 touch the base plate 36 of the leg body 16, so that the male screw 34 can not be screwed so far. Therefore, the breakage of the screw by excessive screwing can be prevented. Since the male screw 34 is shielded by the circumferential wall 40 raised from the base plate 36, the male screw 34 can not be seen from the outside. Therefore, the support leg 10 is excellent in appearance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support leg that is attached to the lower surface of a supported body and adjusts the height of the supported body.

[0002]

2. Description of the Related Art Conventionally, there are supporting legs for supporting a supported body as shown in FIGS.

In this support leg 80, a male screw 86 of the support leg 80 is screwed into a female screw 84 formed on the lower surface of the supported body 82. The male screw 86 is integrally formed with a leg body 88 that is in contact with the mounting surface. The leg body 88 can be rotated to adjust the screwing amount of the male screw 86 to adjust the height of the supported body 82. There is.

In the structure of the support leg 80, the supported body 82
If the male screw 86 is excessively screwed in to reduce the height of the screw, the screwed portion may be damaged.

Further, as shown in FIG. 8, when the male screw 86 is loosened in order to increase the height of the supported body 82, the male screw 86 may fall out from the female screw 84.

Further, since the male screw 86 is exposed, it cannot be said that the external appearance is excellent.

Further, when the support leg 80 is attached to the supported body 82, the male screw 86 has to be screwed into the female screw 84, so this attaching work is troublesome and the workability is not good.

[0008]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention prevents a screw from being excessively screwed in to prevent damage, and can be easily attached to a supported body, and the supporting leg is excellent in appearance. Aim to get.

[0009]

According to the supporting leg of claim 1,
A pedestal attached to a supported body and having a first screw portion formed thereon, a leg body provided with a second screw portion that is screwed into the first screw portion, and a pedestal and the leg body facing each other. Stopper means which are provided on the portion and abut against each other to prevent the second screw portion from being screwed into the first screw portion.

If the leg is rotated to adjust the screwing amount of the second screw into the first screw, the distance between the pedestal and the leg changes accordingly, and the height of the support leg increases. change. Therefore, the height of the supported body can be adjusted.

The screwing of the second screw portion into the first screw portion is prevented at a predetermined position by the stopper means coming into contact with each other. Therefore, the first screw portion is not excessively screwed into the second screw portion, and these screw portions are not damaged.

According to another aspect of the support leg of the present invention, the support leg has a peripheral wall projecting upward from the outer periphery of the leg body and overlapping the pedestal with the first screw portion screwed into the second screw portion. Characterize.

In a state where the second thread portion is screwed into the first thread portion, these thread portions are shielded by the peripheral wall,
Invisible from the outside. Therefore, the appearance is improved and the appearance is excellent.

The support leg according to claim 3 is characterized in that the support leg is provided at a portion where the pedestal and the peripheral wall overlap with each other, and has locking means for locking the peripheral wall to the pedestal and maintaining the overlapping state.

For this reason, even if the screwing of the second screw portion into the first screw portion is loosened, the peripheral wall is retained on the pedestal by the retaining means, so that the state in which the pedestal and the peripheral wall overlap is maintained. To be done. As a result, the threaded portion cannot be seen from the outside, and moreover, the leg does not fall off the pedestal.

In the supporting leg of claim 4, the hooking means comprises:
A latching piece that is provided around the outer periphery of the pedestal or partially protrudes from the outer periphery of the pedestal, and the second protrusion that is provided so as to project partially from the inner periphery of the peripheral wall or around the inner periphery of the peripheral wall. And a locking claw that is mounted on the locking piece and locked by the locking piece when the threaded portion is screwed into the first threaded portion.

When the second screw portion is screwed into the first screw portion, the latch claw rides on the latch piece, and when it is further screwed, the latch claw is latched on the latch piece. Once the hook claw is hooked on the hook piece, the hooked state is maintained. As a result, the state in which the pedestal and the peripheral wall overlap with each other is maintained, and the threaded portion cannot be seen from the outside.

According to another aspect of the support leg of the present invention, a mounting claw projecting inward from the outer periphery of the pedestal so as to be able to engage with a hole edge of a mounting hole formed in the supported body, and the outer periphery of the pedestal. A projection that is provided so as to engage with a recess formed in the hole wall of the mounting hole.

When the pedestal is pushed into the mounting hole, the mounting claw hits the hole wall of the mounting hole and bends inward, and then the mounting claw elastically restores and is locked to the hole edge of the mounting hole. Therefore, the pedestal cannot be pulled out from the mounting hole, and the pedestal can be attached with one touch.

Further, since the protrusion of the pedestal engages with the concave portion of the mounting hole, the pedestal does not rotate together with the legs. Therefore, it is not necessary to hold and fix the pedestal when rotating the legs, which facilitates the height adjustment of the support legs.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 1, a support leg 10 according to an embodiment of the present invention is attached to, for example, four corners of a mounting table 12 on which a projector is mounted, so that the mounting table 12 can be mounted. Supports height adjustment.

As shown in FIG. 2, the support leg 10 has a pedestal 1
4 and legs 16. At the center of the pedestal 14, as shown in FIG. 3, a cylindrical portion 18 formed in a cylindrical shape is provided. On the outer periphery of the tubular portion 18, a substantially U-shaped cutout is made to be cantilevered, and a tapered surface 20A is provided on the upper side.
Mounting claws 20 having locking surfaces 20B formed on the lower side are formed facing each other. When the upper portion of the tubular portion 18 is inserted into the mounting hole 22 formed in the mounting table 12, the tapered surface 20A hits the hole wall of the mounting hole 22 and bends inward, so that the tubular portion is mounted in the mounting hole 22.
Can be inserted into. Next, when the mounting claw 20 passes through the mounting hole 22, the mounting claw 20 is elastically restored and the locking surface 20B is locked to the edge of the mounting hole 22.

Further, on the outer periphery of the cylindrical portion 18, a protrusion 24 protruding outward is formed. Attach the cylindrical portion 18 to the mounting hole 22
The projection 24 engages with the recess 26 formed in the mounting hole 22. As a result, rotation of the tubular portion 18 inserted into the mounting hole 22 is blocked, and the pedestal 14 is prevented from rotating.

A skirt 28 is formed from the middle portion of the tubular portion 18 so as to project outward in a disk shape and hang downward from the outer periphery of the tubular portion in a cylindrical shape. The skirt 28 overlaps a peripheral wall 40 described later. (See FIGS. 3 and 5). Further, a plurality of ribs 30 are radially formed between the tubular portion 18 and the skirt 28 to reinforce the skirt 28.

A female screw 32 which is a first screw portion is cut inside the tubular portion 18 (see FIG. 4).
The male screw 34, which is the second screw portion of the leg body 16, is screwed into the screw 2, and the leg body 16 is attached to the pedestal 14.

The leg 16 has a circular base plate 36 and a male screw 34 provided upright from the center of the base plate 36. A rubber 38 for slip prevention is fitted into a recess 36A formed on the lower surface of the substrate 36.

A cylindrical peripheral wall 40 having a lower height than the male screw 34 is erected from the outer periphery of the base plate 36. When the male screw 34 is screwed into the female screw 32 and the pedestal 14 is attached to the leg body 16. , Overlaps with the skirt 28.

A plurality of grooves are formed on the outer periphery of the peripheral wall 40 in the vertical direction to prevent slippage when the leg 16 is rotated.

From the upper end of the peripheral wall 40, a latch claw 42 which projects inward is provided at a predetermined interval, and the latch claw 42 is provided.
A taper surface 42A that inclines obliquely downward to the inside is provided on the upper side of the, and a hooking surface 4 orthogonal to the peripheral wall 40 is provided on the lower side.
2B is formed. On the other hand, at the lower end of the skirt 28, a hooking piece 44 that surrounds the circumference of the skirt 28 is provided in a protruding manner, and on the lower side of the hooking piece 44, a taper surface that is inclined obliquely upward toward the outside is provided. 44A, a hooking surface 44B that is orthogonal to the peripheral wall 40 is formed on the upper side. When the male screw 34 is screwed into the female screw 32, as shown in FIG.
When the tapered surface 42A of the latching claw 42 and the tapered surface 44A of the latching piece 44 hit each other, the latching claw 42 rides on the latching piece 44, and the male screw 34 is further screwed in, as shown in FIG. 42 rides on the hook 44. In this state, even if the male screw 34 is rotated in the direction opposite to the screwing direction and loosened, the latching surface 42B of the latching claw 42 is latched on the latching surface 44B of the latching piece 44, and therefore, The rotation of the male screw 34 is blocked by the frictional force between the stop surface 42B and the hooking surface 44B. Therefore, the male screw 34 cannot be loosened any more, and the leg 16 does not fall off from the pedestal 14.

From the ribs 30 that reinforce the skirt 28,
A contact plate 46 extending downward is formed. On the other hand, from the substrate 36, an abutment wall 48 is formed so as to protrude upward so as to face the pedestal 14. As shown in FIGS. 5 and 6, the male screw 34 is replaced by the female screw 3
When screwed into 2, the lower end of the tubular portion 18 or the skirt 2
The lower end of 8 hits the base plate 36, and the male screw 34 becomes the female screw 32.
The contact plate 46 and the contact wall 48 come into contact with each other before they cannot be screwed in. Therefore, the male screw 34 is not screwed in excessively.

Next, a method and an operation of assembling the support leg 10 according to this embodiment will be described. To assemble the leg 16 to the pedestal 14, first, the male screw 34 is screwed into the female screw 32. As shown in FIG. 4, the tapered surface 42 of the latch claw 42
A and the tapered surface 44A of the hooking piece 44 contact each other, and the hooking claw 42 rides on the hooking piece 44. Further, when the male screw 34 is screwed in and the hooking piece 44 rides over the hooking claw 42, the hooking surface 44B of the hooking piece 44 is hooked on the hooking surface 42B of the hooking claw 42, and the pedestal 14 The assembly is completed (see Fig. 3). In this way, the leg 16 can be assembled to the pedestal 14 simply by screwing the male screw 34 into the female screw 32.

Next, the support leg 10 is attached to the mounting table 12. When the upper portion of the tubular portion 18 is inserted into the mounting hole 22, the tapered surface 20A of the mounting claw 20 hits the hole wall of the mounting hole 22 and bends inward. After passing through the mounting hole 22, as shown in FIG. 3, the mounting claw 20 is elastically restored so that the locking surface 20B is attached to the mounting hole 2.
The pedestal 14 cannot be pulled out from the mounting hole 22 because the pedestal 14 is locked to the edge of the hole 2.

In this way, the mounting table 12 of the support leg 10 is
When the mounting is completed, the peripheral wall 40 is grasped and the leg 16 is rotated to adjust the screwing amount of the male screw 34 into the female screw 32. At this time, since the projection 24 is engaged with the recess 26 and the tubular portion 18 does not rotate, the leg 16 can be easily rotated with one hand.

The pedestal 14 and the leg 1 according to the rotation of the peripheral wall 40.
The distance from 6 changes, and the height of the support leg 10 changes. Thereby, the height of the mounting table 12 can be adjusted.

When the leg 16 is rotated and the male screw 34 is screwed in, the contact plate 46 and the contact wall 48 come into contact with each other to stop the rotation of the leg 16, as shown in FIGS. 5 and 6. Therefore, the male screw 34 is not excessively screwed into the female screw 32, so that the male screw 34 and the female screw 32 are not damaged.

Further, when the leg 16 is rotated in the direction opposite to the screwing direction to loosen the male screw 34, as shown in FIG. 3, the frictional force between the hooking surface 42B and the hooking surface 44B causes more friction. The male screw 34 cannot be loosened.

Further, as shown in FIG. 5, the male screw 34 is screwed into the leg 16 and the base 16 is loosened from the state where the distance between the leg 16 and the pedestal 14 becomes the shortest, as shown in FIG. The peripheral wall 40 and the skirt 28 are overlapped with each other in any state on the way until the distance between the base 14 and the pedestal 14 becomes the longest. Therefore, the male screw 34 is invisible because it is shielded from the outside by the peripheral wall 40 and the skirt 28. Therefore, the outer appearance of the support leg 10 is improved and the appearance is improved.

In this embodiment, the pedestal 14
The case where the female screw 32 is formed on the tubular portion 18 of the and the male screw 34 is erected from the leg body 16 is shown.
A male screw may be erected from 4 and a tubular portion may be erected from the leg body 16 and a female screw may be cut inside.

Also, an example has been shown in which the hooking piece 44 is projected around the skirt 28 and the hooking claw 42 is partially projected from the peripheral wall 40. 44 is partially projected from the skirt 28, and the hooking piece 44 is formed on the peripheral wall 40.
It may be provided so as to extend around the inside of.

Further, if the screwing directions of the support legs are reversed between the left side and the right side of the mounting table 12 and one is a right screw and the other is a left screw, the mounting table 12 is supported horizontally. If the legs of the legs are rotated in the same direction, one of them will rise and the other will descend, allowing efficient horizontal adjustment. In addition,
Once the leg 16 is assembled to the pedestal 14, the male screw 34 cannot be seen from the outside, so that it is impossible to distinguish which is the right screw at a glance and the mounting table 12
When you attach it to, you have to rotate the legs and check the direction of the screws. Therefore, for example, if the shape of the left-threaded projection 24 is changed, it can be identified at a glance, and since it does not fit into the recess 26 when it is inserted into the mounting hole 22, it cannot be installed by mistake. It will not be lost.

The supporting leg 10 according to the present embodiment.
Needless to say, the height can be adjusted by being attached not only to the mounting table 12 of the projector but also to any supported body.

[0042]

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned construction, it prevents excessive screwing of screws to prevent damage, and can be easily attached to a supported body and has an excellent appearance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a support leg according to an embodiment of the present invention is attached to a mounting table.

FIG. 2 is an exploded perspective view of a support leg and a mounting table to which the support leg is attached according to an embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view of a support leg and a mounting table to which the support leg is attached according to an embodiment of the present invention.

FIG. 4 is a vertical sectional view of a support leg according to an embodiment of the present invention.

FIG. 5 is a vertical sectional view of a support leg according to an embodiment of the present invention.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is an explanatory view of a conventional support leg.

FIG. 8 is an explanatory view of a conventional support leg.

[Explanation of symbols]

 10 Support Legs 12 Mounting Platform (Supported Body) 14 Pedestal 16 Leg Body 20 Mounting Claw 24 Projection 28 Skirt (Pedestal) 32 Female Screw (First Screw Part) 34 Male Screw (Second Screw Part) 40 Peripheral Wall 42 Locking Claw (Latching means) 44 Latching piece (latching means) 46 Contact plate (stopper means) 48 Contacting wall (stopper means)

Claims (5)

[Claims] 1. A pedestal that is attached to a supported body and on which a first screw portion is formed, a leg body on which a second screw portion that is screwed into the first screw portion is erected, the pedestal and the And a stopper means that is provided at a portion facing the leg body and abuts against each other to prevent the second screw portion from being screwed into the first screw portion. 2. A peripheral wall which projects upward from the outer periphery of the leg and which overlaps the pedestal in a state where the first screw portion is screwed into the second screw portion. Support legs described in. 3. The support leg according to claim 2, further comprising a latching unit that is provided at a portion where the pedestal and the peripheral wall overlap with each other and that retains the overlapping state by latching the peripheral wall on the pedestal. 4. The latching means comprises a latching piece that is provided around the outer periphery of the pedestal or partially protrudes from the outer periphery of the pedestal, and partially from the inner periphery of the peripheral wall or the inner periphery of the peripheral wall. And a latching claw that is provided so as to project around the shaft and project on the latching piece by being screwed into the first threaded portion of the second screw portion, and that is latched by the latching piece. The support leg according to claim 3. 5. A mounting claw projecting inwardly from the outer periphery of the pedestal and capable of engaging with a hole edge of a mounting hole formed in a supported body, and the mounting hole projecting from the outer periphery of the pedestal. The support leg according to any one of claims 1 to 4, further comprising a protrusion that engages with a recess formed in the hole wall of the support leg.