JP3180565U - Leg length adjustment device - Google Patents

Abstract

Provided is a leg length adjusting device that can be easily added to an existing arbitrary table without a height adjusting device and can easily change the height easily by a simple operation.
A leg length adjusting device (15) supports a bottom surface of a leg (11) whose length is to be adjusted, and a support member (20) provided with a hook-and-loop fastener as a first fixing means for detachably fixing to a leg; A hook-and-loop fastener is provided as a second fixing means for detachably fixing to the support member at any of a plurality of positions in the length direction of the legs so that the lower end is positioned below the lower end of the support member. Leg length adjusting member 26. The support member 20 is an elongated plate-like member having a protrusion or a plurality of holes, and the leg length adjusting member is also an elongated plate-like member having a plurality of holes or protrusions that fit into the protrusion or the plurality of holes. There are advantages that it can be easily mounted on a leg such as a table and that the height can be greatly adjusted by a simple operation.
[Selection] Figure 2

Description

  The present invention relates to a leg length adjusting device that can be easily mounted on a table or the like without a leg length adjusting function and that can easily adjust the length of the legs.

Conventionally, when a table is used outdoors such as in a campsite, there is a problem that the ground is not flat and the table is tilted or rattled without being stabilized. In order to solve this problem, for example, an adjuster is provided at the bottom of the table leg.
Patent Document 1 below discloses a height adjusting device that adjusts the height of a leg by providing a screw hole at the bottom of the leg and screwing an adjuster having a screw rod into the screw hole.

Japanese Utility Model Publication No. 50-129452

  The conventional height adjusting device as described above has the following problems. That is, since the conventional height adjusting device is structured to be incorporated in the bottom of the leg, it cannot be easily applied to an existing table without the height adjusting device. Further, since the adjustment is performed by turning the screw, it is necessary to rotate the screw a lot when changing the height greatly, which is troublesome.

  The object of the present invention is to solve the above-mentioned conventional problems, and can be easily added to an existing arbitrary table without a height adjusting device, and can easily change the height easily with a simple operation. is there.

  A leg length adjusting device according to the present invention includes a support member having a first fixing means for supporting a bottom surface of a leg whose length is to be adjusted and detachably fixing to the leg, and a lower end being a lower end of the support member. The leg length adjusting member that engages with the support member at any one of a plurality of positions in the length direction of the legs, and the leg length adjusting member and the support member are detachably fixed so as to be positioned below the leg. The main feature is to include a second fixing means.

In the leg length adjusting device described above, the support member is an elongated plate-like member having a protrusion or a plurality of holes, and the leg length adjusting member is also an elongated plate-like member and is fitted to the protrusion or the plurality of holes. Another feature is that it has a plurality of holes or protrusions.
Further, in the leg length adjusting device described above, the support member is formed with a recess that engages with the leg in a cross section in the short side direction, and the leg length adjusting member engages with the support member in a cross section in the short side direction. There is also a feature in that a recess is formed.

Further, the above-described leg length adjusting device is characterized in that the first fixing means and the second fixing means are tape-shaped surface fasteners.
Further, the above-described leg length adjusting device is characterized in that a screw type adjuster is provided at the lower end of the leg length adjusting member.

  In the above-described leg length adjusting device, the leg length adjusting member is a bolt-shaped member provided with a screw thread around the shaft, and the second fixing means is a clamp member fixed to the support member, The clamp member is threaded on the inner surface to allow the axial position of the support member to be adjusted by rotating the leg length adjustment member with the clamp member screw tightened, and The bolt-shaped member can be detached from the clamp member by loosening the screw.

  The leg length adjusting device of the present invention has an advantage that it can be easily mounted on a leg such as a table without a leg length adjusting function and can be greatly adjusted by a simple operation. For example, in the case of a four-legged table, only one leg length adjusting device of the present invention needs to be mounted if rattling is prevented, and the leg length adjusting device of the present invention can be used even when it is desired to install the table horizontally on an inclined ground. Just install two.

FIG. 1 is a side view showing a state in which the leg length adjusting device of Example 1 is mounted on a leg of a table. FIG. 2 is a front view, a side view, and a cross-sectional view showing a state in which the leg length adjusting device according to the first embodiment is mounted on a leg of a table. FIG. 3 is a front view, a side view, and a plan view showing the shapes of parts of the leg length adjusting device of the first embodiment. FIG. 4 is a plan view and a side view showing the shape of the component 2 of the leg length adjusting device of the first embodiment. FIG. 5 is a front view, a side view, and a plan view showing the shapes of parts of a first modification of the leg length adjusting device of the first embodiment. FIG. 6 is a cross-sectional view showing the shapes of parts of a second modification of the leg length adjusting device of the first embodiment. FIG. 7 is a side view and a cross-sectional view showing a state in which the leg length adjusting device according to the second embodiment is mounted on a leg of a table.

  Embodiments of the leg length adjusting device of the present invention will be described below with reference to the drawings.

  FIG. 1 is a side view showing a state in which the leg length adjusting device of Example 1 is mounted on a leg of a table. A leg length adjusting device 15 of the present invention is attached to one leg 11 (two legs in the case of a four-legged table) of the table 10 placed on rough terrain.

  FIG. 2 is an enlarged front view, side view, and cross-sectional view showing a state in which the leg length adjusting device 15 according to the first embodiment is mounted on the leg 11 of the table. FIG. 3 is a front view, a side view, and a plan view showing the shapes of the support member 20 and the leg length adjusting member 26 that are parts of the leg length adjusting device of the first embodiment. FIG. 4 is a plan view and a side view showing the shapes of the first and second hook-and-loop fasteners 24 and 28 that are parts of the leg length adjusting device of the first embodiment. The leg length adjusting device 15 of the present invention includes a support member 20, a leg length adjusting member 26, and first and second hook-and-loop fasteners 24 and 28.

  The support member 20 includes a bottom plate 21 for supporting the bottom surface of the leg 11 whose length is to be adjusted at the lower end portion, and is a first fixing means that is detachably fixed to the leg 11. A second tape-shaped hook and loop fastener is provided with two tape-shaped hook-and-loop fasteners 24 and is a second fixing means for detachably fixing both the leg length adjusting member 26 and the support member 20 together with the legs 11. 28 is also provided.

  The support member 20 is an elongated, substantially rectangular plate-like member. By bending the rectangular plate at an obtuse angle at two locations along the long side, a concave portion that engages with the leg 11 is formed in the cross section in the short side direction. Yes. Two protrusions 22 (or a plurality of holes) are provided on the center line in the longitudinal direction of the surface of the support member 20 opposite to the concave portion. The two protrusions 22 are provided at an interval that is an integral multiple of the interval between the holes of the leg length adjusting member 26 described later. The end of the protrusion 22 is bent in a hook shape and engages with the hole 29 of the leg length adjusting member. In addition, the protrusion 22 may be a simple protrusion whose tip is not bent, and the number of the protrusions 22 may be an arbitrary number of one or more.

  The leg length adjusting member 26 is also a long and substantially rectangular plate-like member. By bending the rectangular plate at an obtuse angle at two locations along the long side, there is a recess that engages with the support member 20 in the cross section in the short side direction. Is formed. A bottom plate 27 is provided at the lower end of the leg length adjusting member 26. The leg length adjusting member 26 is detachably engaged with the support member 20 at any one of a plurality of positions in the length direction of the legs so that the lower end is positioned below the lower end of the support member 20. For this purpose, a plurality of holes 29 (or protrusions) that fit into the protrusions 22 (or a plurality of holes) of the support member 20 are provided at equal intervals. The support member 20 and the leg length adjusting member 26 are made of a metal such as stainless steel or steel, or hard plastic.

  As shown in FIG. 4A, the first tape-shaped hook-and-loop fastener 24 has a well-known surface in which minute hooks 30 and loops 31 are densely formed in predetermined areas on the front and back surfaces of the tape. It has a zipper structure. The first tape-shaped hook-and-loop fastener 24 has one end (the left end in FIG. 4 (A)) passed in advance through an elongated hole 25 provided in the vicinity of the long side of the support member 20 to adhere and fix the hook-and-loop fasteners together. It may be left. At the time of use, the support member 20 is attached to the bottom of the leg 11, the leg 11 is wound with the hook-and-loop fastener 24, and the other end of the hook-and-loop fastener 24 (the right end in FIG. 4A) is provided near the long side of the support member 20. Folded through the formed elongated hole 24, the surface fasteners are bonded and fixed together.

  As shown in FIG. 4B, the second tape-shaped hook-and-loop fastener 28 is a well-known example in which minute hooks 30 and loops 31 are densely formed in predetermined areas on the front and back surfaces of the tape. It has a hook-and-loop fastener structure. The second tape-shaped hook-and-loop fastener 28 also has one end (the left end in FIG. 4B) passed through an elongated hole 25 provided in the vicinity of the long side of the support member 20 so that the hook-and-loop fasteners are bonded and fixed together. It may be left. In use, the hole 29 of the leg length adjusting member 26 is first engaged with the protrusion 22 of the support member 20 at a desired position. Thereafter, the hook-and-loop fastener 28 is wound around the leg length adjusting member 26, the support member 20 and the leg 11, and finally the hook-and-loop fasteners are bonded and fixed.

  In the leg length adjusting device of the first embodiment, it is not necessary to remove the support member 20 if it is previously attached to the table leg 11, and only the leg length adjusting member 26 may be attached and detached on site. In this case, the leg length adjusting member 26 is engaged at a desired position, and the second hook-and-loop fastener 28 is easily attached and the adjustment is completed. Since three hook-and-loop fasteners are also attached to the support member 20 in advance, there is no risk of losing them.

  FIG. 5 is a front view, a side view, and a plan view showing the shapes of parts of a first modification of the leg length adjusting device of the first embodiment. In the first embodiment shown in FIG. 2 and the like, the length of the leg is adjusted by fitting the projection 22 of the support member 20 into any one of the holes 29 of the leg length adjusting member 26. There is a problem that the length can only be adjusted. The modified example shown in FIG. 5 solves this problem and makes it possible to finely adjust the leg length continuously.

  In FIG. 5, an adjuster 35 having a screw rod 36 is fitted in a screw hole provided in a bottom plate 27 at the lower end of the leg length adjusting member 26, and the length of the leg is continuously increased by rotating the adjuster 35. Can be finely adjusted. If the movable range of the adjuster 35 is made longer than the interval between the holes 29, the leg length can be adjusted to an arbitrary length.

  FIG. 6 is a cross-sectional view showing the shape of a part of a second modification of the leg length adjusting device of the first embodiment. In the first embodiment, the example in which the tape-shaped hook-and-loop fastener 28 is used as the second fixing means for detachably fixing both the leg length adjusting member 26 and the support member 20 together with the legs 11 is disclosed. This modification uses a clamp fitting as the second fixing means.

  In FIG. 6, one end of a clamp metal fitting 41 is rotatably connected to one long side of the leg length adjusting member 40 via a hinge 43. A hole or notch is provided in the other end of the clamp fitting, and the leg length is adjusted by fitting and tightening the screw 42 in the other long side of the leg length adjusting member 40 through the hole or notch. Both the member 26 and the support member 20 are detachably fixed together with the legs 11. The first fixing means can be a clamp fitting having the same structure as that shown in FIG. The clamp fitting can be fixed more firmly by tightening with a screw.

  FIG. 7 is a side view and a cross-sectional view showing a state in which the leg length adjusting device according to the second embodiment is mounted on a leg of a table. In the second embodiment, the main difference from the first embodiment is the structure of the leg length adjusting member (55) and the second fixing means (57, 58). The leg length adjusting member in the second embodiment is a bolt-like member 55 provided with a screw thread around the shaft. The second fixing means in the second embodiment is clamp members 57 and 58 fixed to the support member 50.

  The clamp members 57 and 58 include two members that are rotatably connected by a hinge 60, and one member is fixed to the support member 50. The clamp members 57 and 58 are configured to clamp the bolt-shaped member 55 at two positions in the axial direction of the leg 11, and screw grooves corresponding to the bolt-shaped member 55 are cut on the inner surface of the clamp member. The position of the support member 50 in the axial direction can be adjusted by rotating the bolt-shaped member 55 with the screw 59 of the clamp member tightened. Further, the bolt-shaped member 55 can be detached from the clamp member by loosening the screw 59 to open the interval between the two members. Therefore, when it is desired to change the height significantly, the bolt-shaped member 55 may be once removed from the clamp member and fixed again by being sandwiched by the clamp member at a desired position.

Although the details of the embodiment have been disclosed above, the present invention may be modified as follows. In order to prevent the support member 20 from coming off the leg 11 and falling off, a non-slip member such as a rubber sheet may be attached to the inner surface of the concave portion of the support member 20.
If the support member 20 and the leg length adjusting member 26 are attached at the same time instead of attaching the support member 20 to the leg 11 in advance, the first fixing means is omitted, and only the second fixing means is used. The device can be implemented. Further, in the embodiment, an example in which two first hook-and-loop fasteners 24 and one second hook-and-loop fastener 28 are provided is disclosed, but the number of the first hook-and-loop fasteners 24 and the number of second hook-and-loop fasteners 28 is 1, respectively. It can be implemented with any number of pieces.

  The leg length adjusting device of the present invention can be applied not only to the adjustment of the length of a leg such as a table, but also to the use of extending an arbitrary length of the rod-shaped member.

DESCRIPTION OF SYMBOLS 10 Table 11 Leg 15 Leg length adjustment apparatus 20 Support member 24 1st surface fastener 26 Leg length adjustment member 28 2nd surface fastener

Claims (6)

A support member having a first fixing means for supporting the bottom surface of the leg whose length is to be adjusted and removably fixing the leg;
A leg length adjusting member that engages with the support member at any of a plurality of positions in the length direction of the legs, such that the lower end is located below the lower end of the support member;
A leg length adjusting device comprising: a second fixing means for detachably fixing the leg length adjusting member and the support member. The support member is an elongated plate-like member and includes a protrusion or a plurality of holes,
2. The leg length adjusting device according to claim 1, wherein the leg length adjusting member is also a long and thin plate-like member, and has a plurality of holes or protrusions fitted to the protrusions or the plurality of holes. The support member is formed with a recess that engages with the leg in the cross section in the short side direction,
The leg length adjusting device according to claim 3, wherein the leg length adjusting member is formed with a recess engaging with the support member in a cross section in a short side direction.   The leg length adjusting device according to claim 3, wherein the first fixing means and the second fixing means are tape-shaped surface fasteners.   The leg length adjusting device according to claim 4, wherein a lower end of the leg length adjusting member is provided with a screw type adjuster. The leg length adjusting member is a bolt-shaped member provided with a thread around the shaft,
The second fixing means is a clamp member fixed to the support member;
The clamp member is threaded on the inner surface to allow adjustment of the axial position with the support member by rotating the leg length adjustment member with the clamp member screw tightened; and The leg length adjusting device according to claim 1, wherein the bolt-shaped member can be detached from the clamp member by loosening the screw.

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