JPS5912233Y2 - mounting bracket - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting bracket for fixing a fixed member such as a horizontal rail to a drawing board or the like in a drawing device or the like.

Conventionally, this type of mounting bracket is known as a vise type with a U-shaped overall side surface shape.

According to this mounting bracket, there was a defect that the hooking member having a U-shaped upper part protruded from the surface of the base plate of the drawing board, etc., and a straightedge etc. collided with this, causing an obstruction.

Therefore, the applicant developed a structure in which the hook member was removed.

However, even with this arrangement, there was a flaw in that people could get caught on the bottom of the mounting bracket and get in the way.

The present invention was devised in view of the above-mentioned deficiencies, and the object is to provide a mounting bracket that allows the upper and lower parts of the conventional vise-type mounting bracket to be removed and has a sturdy structure. It is.

The structure of the present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

1 is a base plate cut out from the drawing board, 2 is a body part of a certain mounting bracket 3 made from a square thick plate member, and a concave part 2a is formed in the vertical direction on both sides of this, and the planar shape is a convex shape. It is shaped by

A member 4 to be fixed is removably fixed to the body portion 2 by a known fixing means from a horizontal rail of the drafting device.

Reference numeral 5 denotes a lower structural part of the mounting bracket 3, and a screw rod 7 is screwed into a tapped hole in a portion located horizontally to the lower surface of the plywood 1.

Reference numeral 8 denotes a hook portion of the mounting bracket 3, and the hook portion 8 and the lower structure portion 5 are removably fixed to both ends of the body portion 2 by screw shafts 9, 10. The side surface of the portion 8 and the lower component portion 5 as a whole has a U-shape.

A long hole 11 is provided at both ends of the body portion 2 in a direction parallel to the screw rod 7, that is, in a vertical direction.
The shaft portion of a cap screw 12 is slidably fitted into the cap screw 1 .

Reference numeral 13 denotes a support member consisting of a horizontal portion 13b formed from a rectangular plate-like member and a pair of vertical portions 13a, 13a formed at right angles to both ends of the horizontal portion 13b. , 13a are the recesses 2a, 2a of the body part 2
The horizontal part 13
b is arranged horizontally with respect to the horizontal portion of the lower structure section 5.

The convex portion 2C between the concave portions 2a and 2a of the body portion 2 is fitted between the vertical portions 13a and 133 of the support member 13 so as to be slidable in the vertical direction.

The cap screw 12 is screwed into a tapped hole formed in the vertical portions 13a, 13a of the support member 13.

14 is a wood screw, 15. Reference numeral 15 designates a hole for wood binding that is transparently provided in the body portion 2.

Next, the operation of this embodiment will be explained.

First, the body part 2 is brought into contact with the side surface of the base plate 1 as shown in FIG. 2, and the lower surface of the hook part 8 is brought into contact with the upper surface of the base plate 1.

Next, rotate the screw rod 7, push up the support member 13 along the elongated hole 11 with its tip, and push the tip of the screw rod 7 onto the support member 1.
3 to the lower surface of the base plate 1.

In this state, the member to be fixed 4 is fixed to the side surface of the drawing board 1 via the mounting fittings 3.

Next, wood screws 30 are screwed into the side surface of the plywood 1 through the holes 15, 15 of the body portion 2, and the body portion 2 is fixed to the side surface of the base plate 1 with the wood screws 30.

Furthermore, a wood screw 14 is screwed into the lower surface of the plywood 1 through a transparent hole in the horizontal part of the support member 13, and the support member 13 is screwed into the wood screw 1.
4 to the bottom surface of the drawing board 1.

Next, the screw rod 7 is rotated in the removal direction to remove it from the lower structure section 5.

Further, when the screw shafts 9 and 10 are rotated in the removal direction and removed from the hook portion 8, the body portion 2, and the lower structure portion 5, the hook portion 8 and the lower structure portion 5 are removed from the body portion 2.

In this way, when a load in the direction of the arrow is applied to the member to be fixed 4 with the hook 8 and the lower structure part 5 removed from the body part 2, the load acts as a shear load on the wood screw 30, that is, it acts as a shear load on the wood screw 30. This acts as a downward load parallel to the side surface of the plate 1, and acts as an eccentric load that tilts the body portion 2 in the direction of rotation of the hour hand in FIG.

The fixing force of the wood screws 30 is strong against the above-mentioned shear load, but the direction in which the wood screws 30 are pulled out from the base plate 1 due to the above-mentioned eccentric load, that is, the direction perpendicular to the side surface of the base plate 1 in FIG. Weak against forces in the upward and right directions.

In the absence of the support member 13, the body portion 2 attempts to rotate in the hour hand direction using C3 as a fulcrum due to the downward eccentric load in the arrow direction.

At this time, a large pulling force acts on the wood screw 30 in the right direction perpendicular to the side surface of the base plate 1.

However, in this embodiment, when the body portion 2 attempts to rotate and tilt in the direction of the hour hand due to the eccentric load, this tilt uses the tip C1 of the horizontal portion 13b of the support member 13 that contacts the lower surface of the base plate 1 as a fulcrum.

This fulcrum C1 and the mounting position C2 of the wood screw 30 on the side of the base plate 1
is longer than the distance between the fulcrum C3 and the above-mentioned C2, which would be expected in the case where the support member 13 is not provided, and the fulcrum C1 is located to the left in FIG. 7 from the side surface of the base plate 1. Because of this position, no large pulling force is applied to the wood screws 30 in a direction perpendicular to the side surface of the base plate 1.

Therefore, the member to be fixed 4 is firmly fixed to the base plate 1.

As is clear from the above description, the support member 13 is in pressure contact with the lower surface of the base plate 1 and supports the rotational force of the body part 2 in the direction of rotation of the hour hand in FIG.
It is sufficient that the support member 1 is fixed by a screw 12 to the support member 1.
3 need not be fixed to the base plate 1 with the wood screws 14 in particular.

Next, another embodiment will be described with reference to FIG.

Reference numeral 2 designates the body portion of the mounting bracket 3, and a dovetail groove 16. 16 is bored, and protrusions 17, 17 vertically protruding from both ends of the horizontal portion 13 of the support member 13 are slidably fitted into the dovetail grooves 16, 16.

The protrusions 17, 17 correspond to the vertical portion 13a.

Reference numeral 18 denotes a tapped hole bored in the body portion 2 in a direction perpendicular to the longitudinal direction of the dovetail groove 16, into which a fixing screw 19 is screwed.

The screw 19 corresponds to the cap screw 12.

Other structural precepts are substantially the same as in the above embodiment.

In the above-mentioned construction, the support member 13 is attached to the screw rod 7 (second
(see figure) by dovetail groove 16. 16, and when the support member 13 comes into contact with the bottom surface of the drawing board 1, tighten the screws 19 to secure the support member 13 to the body part 2 with the screws 19 to prevent the support member 13 from falling downward. Fixed to.

In this case, the horizontal portion of the support member 13 may be fixed to the lower surface of the drawing board 1 with wood screws 14, or may not be fixed for the reasons described above.

Next, the body part 2 is fixed to the base plate 1 with wood screws 30,
Next, the hook part 8 and the lower structure part 5 are removed from the body part 2.

Next, another embodiment will be described with reference to FIGS. 5 and 6.

20. 21 is a shaft 23, 24 rotatably attached to the body portion 22;
The cam curved piece 25, which is an eccentric cam-shaped support member, is shaped like an arch and has an appropriate thickness and width.
A long hole 26 is provided transparently.

Other structures are substantially the same as those of the first embodiment.

In the above structure, the support member 20. 21 to axis 23
．． 24, presses the cam curved piece 25 against the lower surface of the base plate 1, and then inserts a wood screw 27 through the elongated hole 26.
, 28 into the lower surface of the base plate 1, and the support member 20,
By fixing 21 to the lower surface of the plywood 1, the support member 2
0. 21 is fixed to the body part 22.

After the support members 20 and 21 are held in contact with the lower surface of the base plate 1, the hook portion 8 and the lower structure portion 5 are removed from the body portion 22, as shown in the first embodiment.

Note that in this embodiment, the support member 20. 21 to the body part 22
When fixing the support members 20 and 21 to the wood screws 27
, 28 to the lower surface of the base plate 1, the means for fixing the support members 20, 21 to the body portion 22 are not particularly limited to the illustrated structure.

As described above, the present invention involves temporarily fixing the mounting bracket to the plywood by tightening screws, and then fixing the body of the mounting bracket to the side surface of the plywood using screws such as wood screws through the screw holes provided in the body. Therefore, the hook part and the lower structure part can be removed, and there is no possibility that a straightedge or the like will collide with the hook part, or the lower structure part will not get in the way.

Furthermore, since the support member that abuts the lower surface of the base plate can be fixed to the body portion of the mounting bracket, there are effects such as being able to sufficiently withstand large loads.

[Brief explanation of the drawing]

The drawings show preferred embodiments of the present invention; FIG. 1 is a front view of the first embodiment, FIG. 2 is a cross-sectional view taken along line A-A, and FIG. 3 is a cross-sectional view taken along line B-B. , FIG. 4 is a plan view showing the second embodiment, FIG. 5 is a front view showing the third embodiment, FIG. 6 is an external view of the supporting member, and FIG. 7 is the first embodiment. 8 is an exploded perspective view of the first embodiment, and FIG. 9 is a sectional view of the body of the second embodiment.
FIG. 10 is an exploded perspective view of the third embodiment. 1...Drawing board, 2...Body part, 3...
...Mounting bracket, 4...Horizontal rail, 5...
・・Lower structure, 6・・Drawing board, 7・・・・
Screw rod, 8...Hook part, 9, 10...
Screw shaft, 11... Long hole, 12... Cap screw, 13... Support member, 14...
・Wood screw, 16...Dovetail groove, 17...
Projection, 18...Screw hole, 20, 21...
... Support member, 22 ... Body part, 30 ...
...Wood screws.

Claims (1)

[Scope of utility model registration request] A body part 2 to which a hook part 8 and a lower structure part 5 can be detachably fixed at both ends so that the member to be fixed is fixed and the side surface shape as a whole has a substantially U-shape; It is connected to the body part 2 so as to be freely displaceable in the direction toward and away from the hook part 8, is able to come into contact with the lower surface of the base plate 1 perpendicular to the body part 2, and is perpendicular to the body part 2. Support members 13, 20 that protrude a predetermined length in the direction and can be fixed. 21, and the body part 2 is provided with screw holes 15, 15 for fixing the body part 2 to the side surface of the base plate 1 with screws.