JP2002175019A - Clamp for display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clamp for a display at with which a display can be mounted on by fastening the clamp from the upper side over the top plate of a desk or the like and the work efficiency for mounting is improved. SOLUTION: The operational part 23 for driving the upper clamp part 3 and lower clamp part 12 relatively in the vertical directions is formed in an position higher than the top plate 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp capable of suitably holding a display such as a computer on a top plate.

[0002]

2. Description of the Related Art In recent years, with the development of liquid crystal technology and the like, thin liquid crystal displays and the like have been rapidly spreading in place of conventionally used CRT displays for computers. When such a display is used on a tabletop, instead of mounting the display on the tabletop in order to make the use surface of the tabletop as wide as possible,
It has been considered to hold the display by a clamp attached to the edge of the top plate.

In such a clamp, a bracket having a U-shape in a side view, a holding plate at an upper end and a rod-shaped handle rotatable at a lower end are attached to penetrate a substantially horizontal lower wall of the bracket. The upper plate and the upper plate of the bracket are moved vertically by screwing the screw shaft up and down through nuts and screw holes provided on the lower wall with the horizontal rotation operation of the handle. Usually, the bracket is fixed to the top plate by being sandwiched between the brackets.

[0004]

However, with the clamp having such a configuration, it is sometimes difficult or impossible to attach the clamp depending on the shape of the desk. For example, when the so-called overhang where the horizontal downward surface is exposed at the edge (particularly the side edge or the rear edge) of the top plate is small, the top plate is supported even if the clamp handle is rotated horizontally. There is a problem that it is difficult to operate because it interferes with the legs and the curtain. Also, if the desktop panel is mounted upright on the rear edge or side edge of the top plate,
Since the clamp cannot be attached because the desktop panel and the clamp interfere with each other, for example, it is attempted to attach the clamp to a wiring opening provided so as to penetrate in a thickness direction at a position along the rear edge of the top plate. Then, there arises a problem that it is necessary to go under the top plate and work for the steering wheel operation. In any case, in order to operate the handle below the top plate,
The work is cumbersome because it is necessary to sink into the space below the tabletop and buckle.

[0005] In order to solve the above problems, the present invention can be mounted by tightening the clamp from above the top plate, thereby improving the efficiency of mounting work. Is provided.

[0006]

That is, the display clamp of the present invention comprises an upper holding portion and a lower holding portion for vertically holding a top plate of a desk or the like, and the upper holding portion and the lower holding portion are provided by the upper holding portion and the lower holding portion. A display is attached to the top plate, interposed between the top plate and the display in a state where the top plate is sandwiched vertically, and the upper sandwiching portion is relatively screwed between the lower sandwiching portion and the upper sandwiching portion. It is characterized in that an operation unit for driving in the vertical direction is formed at a position above the top plate.

With such a configuration, when the display clamp is mounted on the top plate, the operating portion is positioned above the top plate with the upper holding portion without sinking or bending in the space below the top plate. Since the operation may be performed so as to tighten the top plate with the lower holding portion, the mounting work of the clamp becomes extremely simple. In particular, the ability to mount the clamp above the top plate effectively eliminates the conventional problem that it was difficult to operate the handle because the legs and the curtain plate became obstacles when the overhang at the edge of the top plate was small. Can be eliminated.

[0008] Specifically, as a desirable configuration in which the upper sandwiching portion can be driven by a screw action, the display clamp is provided with an upper wall positioned above the top plate and a substantially horizontal lower portion positioned below the top plate. A bracket having a wall, a column that is screwed up and down with the upper wall as a scaffold, and a holding plate that is fixed to a lower end of the column attached to the upper wall in a substantially horizontal posture. The lower wall may function as a lower holding portion, and the holding plate may function as an upper holding portion.

In addition, since a large eccentric load is likely to act on the clamp that supports the display, which is a heavy object, in order to be able to withstand the eccentric load sufficiently, the holding plate must be made sufficiently large. It is necessary to increase the contact area with the plate. However, if such a large holding plate is rotated together with the support by the operation of the operation unit, an unnecessarily large operation force must be input to the operation unit in order to firmly fix the clamp to the top plate. .
Therefore, when screwing the support using the upper wall of the bracket as a scaffold, in order to effectively prevent the support plate from rotating together with the support, the support plate is rotatably fixed to the support, It is desirable that the holding plate idles with respect to the support.

In order to efficiently convert the operating force input to the operating portion into the up-and-down movement of the holding plate and to improve the operability, it is preferable to form the operating portion on the column.

Further, when using the display,
Since the position and orientation are often changed, in order to be able to easily cope with such a case, the above-described display clamp is connected via an arm device that movably holds the display. What is necessary is just to support a display.

Furthermore, the present invention is not limited to the above-described embodiment utilizing the screw action when driving the upper sandwiching portion, but includes various embodiments.

[0013]

An embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIG.
A display clamp (hereinafter, abbreviated as “clamp”) C attached to the top plate to support the display D in order to arrange the display D on the top plate. The display D is a so-called thin liquid crystal display, and is supported by the clamp C via the arm device 5.

First, the desk T is provided with a top plate 6, a leg element 7, a back plate 8 and the like. Inside the back plate 8, a wiring storage space for storing a communication line (not shown) drawn from a floor or a wall. Are formed in a duct structure or the like, and a rectangular opening window 61 is formed near the rear edge 6a of the top plate 6 above the wiring space and penetrates in the thickness direction of the top plate 6. Then, the clamp C of the present embodiment is attached to the top plate 6 by being positioned at the opening window 61.

As shown in FIGS. 2 and 3, the clamp C includes a bracket 1 having a U-shape in a side view, a column 2 movably attached to the bracket 1, and a holding plate fixed to the lower end of the column 2. 3 and an auxiliary pinching member 4 detachably attached to the lower end of the bracket 1.

The bracket 1 is formed by bending a single sheet metal material in two places at substantially right angles, thereby forming an upper wall 11 and a lower wall 12 which are vertically opposed in a substantially horizontal posture.
And a standing wall 13 connecting the lower wall 1 and the lower wall 12. The reinforcing plate 14 is formed by welding a reinforcing plate 14 having a triangular shape in a side view from both sides to a corner formed by the upper wall 11 and the standing wall 13. Thus, the deformation of each of these walls is prevented. Further, a circular through hole 11a penetrating in the thickness direction is formed on the tip end side of the upper wall 11, and this through hole 11a
The nut 15 is fixed to the back surface of the upper wall 11 corresponding to the above by welding. Although not shown, a nut similar to the nut 15 may be arranged on the upper surface of the upper wall 11 to provide a so-called double nut configuration.

The column 2 includes a screw portion 21 having a thread formed on a peripheral wall, a disk portion 22 having a circular shape in a plan view, an operation portion 23 having a plurality of planar rising surfaces, and an upper end portion 24a. A shaft portion 24 having a diameter larger than the diameter of the lower end portion 24b; the center axis of each portion is made to coincide with the vertical axis passing through the center of the screw portion 21; , The operation part 23 and the shaft part 24 are integrally fixed by welding in this order. The height of the screw portion 21 occupies about half of the entire length of the column 2, and the column 2 can move up and down within the range of this dimension. Further, a screw hole 21a for attaching the holding plate 3 is formed in the center of the lower surface of the screw portion 21. Further, a resin disk member 25 having a diameter slightly larger than the diameter of the upper end portion 24a is mounted on the upper surface of the upper end portion 24a of the shaft portion 24 with screws 25a.

The pressing plate 3 is made of a substantially rectangular metal plate 31 having a substantially flat plate shape, and has a rounded front end. Further, a projection 32 projecting rearward is provided at the center in the width direction along the rear edge of the metal plate 31,
By pressing a part of the rear end of the metal plate including the protruding portion 32 from below, a step portion 33 which is one step higher than the surface of the other portion of the metal plate 31 is formed. That is, in the step portion 33, a part of the back surface in another portion of the metal plate 31 is depressed upward. Thus, the step portion 33 is provided with a through hole 34 penetrating in the thickness direction, and a screw 35 inserted through the through hole 34 from below.
Is attached to a screw hole 21 a provided in a screw portion 21 of the column 2 fitted to the nut 15 of the bracket 1. At this time, the through-hole 34 has a thickness smaller than that of the step 33 so that the holding plate 3 does not rotate together with the rotation of the column 1 which is screw-fed by the screw action of the screw portion 21 and the nut 15. Also, a slightly long cylindrical collar 36 is inserted, and a screw 35 is inserted through the collar 36. In addition, the contact area of the holding plate 3 with the top plate 6 is set to be large enough to withstand the unbalanced load when the display D is attached to the clamp C via the arm device 5 as described later.

The auxiliary pinching member 4 is formed by bending a single T-shaped flat sheet metal material. A wide portion protruding to both sides is used as a front end side and the protruding portion is used as the auxiliary pinching member 4. Are bent substantially at right angles to one side (here, the back side in this case), and further bent at substantially right angles toward the inside, so that both sides of the front end of the auxiliary sandwiching member 4 have a U-shape in a front view. A projection 42 is formed. At the rear end of the auxiliary sandwiching member 4, a notch 43 is formed which is cut forward in a rectangular shape while leaving both side ends. The width and depth of the notch 43 substantially correspond to the width and thickness of the upright wall 13 of the bracket 1, and the auxiliary pinching member 4 is placed on the lower wall 12 of the bracket 1 and cut. The upright wall 13 is positioned in the notch 43 and is attached to the bracket 1 in such a manner that the bracket 1 is held from both sides by the rear end of the auxiliary pinching member 4. Therefore, the lower wall 12 of the bracket 1
The auxiliary holding member 4 has a screw hole 44 formed at a position corresponding to the concave portion 12a, and a screw 45 inserted from below into the concave portion 12a. It is attached to the hole 44.

As shown in FIG. 1, the arm device 5 has a first end coupled to a clamp C so as to be rotatable about a vertical axis.
It comprises a support arm 51 and a second support arm 52 having a base end connected to a distal end of the first support arm 51 so as to be rotatable about a horizontal axis and a vertical axis. The back surface of the display D at the tip of
A rotatable connection can be made about an axis orthogonal to the support arm and about two horizontal axes. In this manner, the arm device 5 rotatably supports the display about six axes, gives six degrees of freedom, and can freely change the attitude and position of the display D. When attaching the arm device 5 to the clamp C, the cylindrical portion 5 formed at the base end of the first support arm 51 and opening downward is formed.
The shaft portion 24 of the support 2 is inserted into the support 3. At this time, as a configuration for preventing the cylindrical portion 53 from being inadvertently rotated with respect to the column 1, the diameter of the cylindrical portion 53 is made to substantially correspond to the diameter of the resin disk member 25. Shape 53
The frictional resistance between the inner wall and the disk member 25 is used. The lower end of the cylindrical portion 53 is placed on the disk portion 22 to improve the stability of the arm device 5.

The work of mounting the clamp C having such a structure on the top plate 6 is performed as follows. The shape of the back surface 6b of the top plate 6 is assumed to be planar as shown in FIG. First, the lower wall 12 of the bracket 1 is sunk into the back surface 6b side of the top plate 6 through the opening window 61 of the top plate 6, and the auxiliary pinching member 4 is attached to the lower wall 12 with its flat surface 41 facing upward. Keep it. On the other hand, the lower end of the screw portion 21 of the column 2 is positioned in the through hole 11 a of the upper wall 11 of the bracket 1, and the screw portion 21 is connected to the nut 1.
5, the holding plate 3 is screwed to the column 2 from below with the lower end exposed below the nut 15. The head of the screw 35 is housed in a space formed between the back surface of the step 33 and the front surface 6a of the top plate 6. Then, using a fastener such as a wrench, the operation unit 23
, The column 1 is rotated by the screw action until the holding plate 3 contacts the surface 6 a of the top plate 6. When the operating section 23 is further operated from this state, the bracket 1 is screwed upward using the holding plate 3 and the support 2 in contact with the top plate 6 as a foothold, and thereafter the surface 41 of the auxiliary pinching member 4 is moved upward. The operation is continued until the top plate 6 is strongly sandwiched between the holding plate 3 and the auxiliary sandwiching member 4 in contact with the back surface 6 b of the plate 6. By fixing the clamp C to the top plate 6 in this manner, the holding plate 3 functions as an upper holding portion that comes into contact with the top plate 6 from above when the top plate 6 is sandwiched, and the lower wall 12 of the bracket 1 serves as an auxiliary holding portion. It functions as a lower sandwiching portion that contacts the top plate 6 from below via the portion 4. In addition, at this time, if the configuration is a double nut in which two nuts are arranged vertically above and below the upper wall 11 as described above, the operation unit 23 is operated to fix the clamp C to the top plate 6 and then further illustrated. By tightening the upper nut, which is omitted, into the screw portion 21, the loosening of the screw portion 21 can be more effectively prevented. In particular, the effect of preventing the loosening of the screw portion 21 when the arm portion 5 is moved is extremely large. growing. Thereafter, the arm device 5 may be attached to the column 2 and the display D may be attached to the arm device 5 as described above.

Further, in the present embodiment, it can be attached to the top plate 6 as described below.

For example, as shown in FIG.
If there is a downward projection 62 at the front edge of the opening on the back surface 6b side along the opening window 61, and there is no so-called overhang where the back surface 6b is exposed at the opening front edge,
What is necessary is just to use the said auxiliary pinching member 4 upside down from the above-mentioned case. That is, the auxiliary pinching member 4 is attached to the lower wall 12 of the bracket 1 in the same manner as described above with the protrusion 42 facing upward, and the projection 62 is moved forward by the depth dimension of the auxiliary pinching member 4. If the surface of the projection 42 facing upward is brought into contact with the back surface 6b of the top plate 6, the clamp C is attached to the top plate 6 in a state where the top plate 6 is sandwiched between the holding plate 3 and the projection 42. Can be attached. In the present embodiment, the height of the projection 42 of the auxiliary pinching member 4 is adjusted to the height of the projection 62 projecting downward from the top plate 6. 6b and the lower surface of the projection 62 are in contact with each other.
Is more stable than when only one of the back surface 6b of the top plate 6 and the protrusion 62 is in contact with the other.

Further, for example, as shown in FIG. 5 (b), it can be attached to a top plate 6 as shown below. That is, there is a projection 63 projecting downward at such a size that it cannot be overcome by the above-described auxiliary pinching member 4 at the front edge of the opening on the back surface 6 b side along the opening window 61 of the top plate 6. If there is a cut 63a that opens backward, the clamp C may be attached without using the auxiliary pinching member 4. That is, the lower wall 12 of the bracket 1 is inserted into the cut 63a of the projection 62,
By directly contacting the upper surface of the lower wall 12 with the downward surface of the notch 63a, the clamp C can be attached to the top plate 6 with the top plate 6 vertically sandwiched between the holding plate 3 and the lower wall 12. Become like

As described above, according to the display clamp C of the present embodiment, the holding plate 3 serving as the upper sandwiching portion that moves up and down with respect to the top plate 6 to vertically sandwich the top plate 6 together with the lower sandwiching portion. Since the operation unit 23 for causing and driving the above operation is formed at a position higher than the top plate 6,
Since operations that need to be performed with force to sandwich the top plate 6 can be performed in a large space above the top plate,
The operability is improved, and the clamp C can be easily tightened.

In particular, this clamp C has a column 2 attached to the upper wall 11 of the bracket 1 having an upper wall 11 and a lower wall 12 which are vertically opposed to each other with a top plate therebetween. The lower wall 12 is configured to function as a lower holding portion by attaching the holding plate 3 functioning as an upper holding portion to the second holding portion 2. Further, since the operating portion 23 is formed on the column 2, the input to the operating portion 23 is performed. The operating force to be used is the support 2
Can be directly converted into an up / down operation of the holding plate 3, and the operation of the operation unit 23 can be performed reliably at a position above the top plate 6. Can be done. The holding plate 3 is fixed to the lower end of the column 2 with screws. However, even if the column 2 is rotated by providing the collar 36 between the screw 36 and the holding plate 3, the column 2 is fixed to the column 2. On the other hand, since the holding plate 3 is made to idle, it is possible to effectively prevent the problem that the holding plate 3 rotates together with the column 2.

Further, this clamp C is
The display D is movably supported via the display D, so that the use position and use posture of the display D can be freely changed and used, and the clamp C is firmly attached to the top plate 6. Even if the torsion force is applied to the clamp C when the display D is moved, the fall of the display D and the clamp C and the damage to the clamp C and the top plate 6 can be effectively prevented.

In the above description, the case where the clamp C is attached to the opening window 61 provided on the top plate 6 has been described. However, the edges (rear edge, side edge, front edge, etc.) of the top plate 6 are shown. The same applies to the case where the auxiliary sandwiching member 4 is attached to or detached from the top plate having a large overhang, a small top plate having a large overhang, or a top plate having a projection. Can be changed. Also, whether or not to use the auxiliary pinching member 4 is optional, and it may be used only when necessary.

Further, in addition to the clamp C having the above-described configuration, the present invention may be a clamp C 'as schematically shown in FIG. 6 described below as a modification. The clamp C ′ includes a bracket 1, a support 120, a holding plate 3, and an auxiliary sandwiching member 4, similarly to the clamp C, and members other than the support 120 are substantially the same as the clamp C. Is used, and the description is omitted. In addition, a nut plate 115 having a screw hole at the center is fixed to the back surface of the upper wall 11 of the bracket 1 in place of the nut 15 by welding. Prop 12
0 is a screw portion 1 provided with a through hole 121a penetrating vertically.
21, a shaft 122 that is inserted into the through-hole 121a from above so as not to contact the screw 121, and has a height higher than the screw 121, and is fixed to the upper end of the screw 122 by welding or the like. And an operation unit 123 inserted therethrough. The screw portion 121 is connected to the upper wall 11 of the bracket 1.
The screw thread formed on the peripheral wall after being inserted into the through-hole 11a is attached to the bracket 1 with the nut plate 115 fitted with the screw action. A screw hole 12 for attaching the holding plate 3 is provided in the center of the lower surface of the shaft portion 122.
2a is formed. On the upper surface of the upper end portion 24a of the shaft portion 24, a resin disk member 25 having a diameter that is slightly larger than the diameter of the upper end portion 24a is mounted, and a screw 25a is mounted.
It is attached by. The operation section 123 has a plurality of planar upright surfaces like the operation section 23 of the clamp C, and the screw section 122 is rotated by sandwiching the upright surface with a wrench or the like. And make them move up and down. The arm device 5 is attached to the clamp C ′ attached to the top plate 6 from above the shaft portion 122 and the screw portion 121.

Even with such a configuration, the operation section 123 is provided at a position higher than the top plate 6 so that it is easy to operate. When the operating portion 123 is rotated so that the screw portion 121 is screw-fed to the nut plate 115 and moves downward with respect to the bracket 1, the shaft portion 122 follows the rotating operation of the screw portion 121. The holding plate 3 pressed to the lower end of the screw portion 121 without rotating
From above. Further, the configuration in which the auxiliary pinching member 4 is in contact with the back surface 6b of the top plate 6 from below is the same as that of the clamp C of the above embodiment.

Further, the driving of the upper holding portion is not limited to the one utilizing the screw action as in the above-described embodiment and its modified example, but may be performed, for example, in accordance with the vertical rotation of the operating rod. Various appropriate configurations can be adopted, such as one in which the sandwiching part moves vertically vertically and one in which the upper sandwiching part is electrically driven by pressing an operation switch. The operation stick or the operation switch may be set at a position higher than the top plate.

In addition, the specific configuration of each section is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0034]

The present invention is embodied in the form described above, and has the following effects.

That is, in the display clamp of the present invention, the upper holding portion is vertically moved relative to the lower holding portion by the screw action through the operation of the operating portion formed above the top plate such as a desk. By driving, the display is supported in a state where the top plate is vertically sandwiched between the upper and lower sandwich portions and attached to the top plate.
For this reason, since the operation required to sandwich the top plate up and down can be performed in the space above the top plate, there is no need to dive into the space below the top plate or bend as in the conventional clamp, In addition, there is usually no obstacle above the top plate that could interfere with the tightening operation of the clamp, and even if a desktop panel or the like is placed on the top plate, it is easy to avoid it and perform installation work. Therefore, the work of attaching the clamp to the top plate can be made extremely simple.

As a specific configuration, a bracket having an upper wall and a lower wall which are vertically opposed to each other with a top plate interposed therebetween, a column which is screwed vertically using the upper wall as a scaffold, and a column If a holding plate that moves up and down together with the holding plate is provided and the lower wall of the holding plate and the lower wall of the bracket are made to function as an upper holding portion and a lower holding portion, respectively, it is possible to configure a display clamp that can effectively exert the above-described effects. it can. In particular, in the case of such a configuration, if the holding plate is fixed so as to idle with respect to the support, the holding plate rotates together with the support when screwing the support using the upper wall of the bracket as a foothold. The clamp can be effectively prevented, and as a result, the clamp can be securely fixed to the top plate without inputting an unnecessarily large operation force to the operation unit. In addition, if the operation portion is formed on the support, the operation for driving the holding plate can be performed at a position above the top plate, and
It is also possible to efficiently convert the operation force input to the operation unit into a vertical movement of the holding plate.

Further, if the above-described display clamp supports the display via an arm device for movably holding the display, the display can be used by freely changing its use position and use posture. Become like

In addition to the above, in the present invention, even if the upper sandwiching portion is driven by a structure not utilizing the screw action, the same effect as described above can be obtained by providing the operating portion above the top plate. It is possible to obtain

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a desk in a state where one embodiment of the present invention is attached to a top plate.

FIG. 2 is a perspective view showing the same embodiment.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a longitudinal sectional view of the main part.

FIG. 5 is a longitudinal sectional view showing another state of attachment to the top plate of the embodiment, corresponding to FIG. 4;

FIG. 6 is a sectional view showing a modification of the embodiment corresponding to FIG. 4;

[Explanation of symbols]

 C, C 'Clamp D Display 1 Bracket 2, 120 Support 3 Support plate 5 Arm device 6 Top plate 11 Upper wall 12 Lower wall 23, 123 Operation unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06F 1/16 G06F 1/00 313A F-term (Reference) 3J001 FA13 GB01 HA02 JB02 JB16 KB06 KB12 3J022 DA11 EA02 EA41 FA01 FB12 GA06 GA13 GB32 5G435 AA00 AA17 EE16 EE19 EE49 EE50 GG41

Claims (6)

[Claims] An upper sandwiching portion and a lower sandwiching portion for vertically sandwiching a top plate of a desk or the like, and a top plate and a display are provided in a state where the top plate is sandwiched vertically by the upper sandwiching portion and the lower sandwiching portion. The display is attached to the top plate, and the operation section for vertically driving the upper holding section and the lower holding section with a screw action is higher than the top board. A display clamp formed at a position. 2. A bracket having an upper wall positioned above the top plate and a substantially horizontal lower wall positioned below the top plate, and a column which is screwed vertically using the upper wall as a scaffold. And a holding plate fixed to the lower end of the column attached to the upper wall in a substantially horizontal posture, so that the lower wall functions as a lower holding portion and the holding plate functions as an upper holding portion. The clamp for a display according to claim 1, wherein: 3. The display clamp according to claim 2, wherein said holding plate is rotatably fixed to a column. 4. The display clamp according to claim 2, wherein an operating portion is formed on the support. 5. The display clamp according to claim 1, wherein the display is supported via an arm device for movably holding the display. 6. A top plate and a display in which a top plate such as a desk is vertically sandwiched by an upper sandwiching portion and a lower sandwiching portion, wherein the top plate is sandwiched vertically by the upper sandwiching portion and the lower sandwiching portion. The display unit is attached to the top plate, and an operation unit for vertically driving the upper sandwiching unit relatively to the lower sandwiching unit is located at a position above the top plate. A display clamp characterized by being formed.