JPH0731213Y2 - Schaukasten stand - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention tilts the Schaukasten at an arbitrary angle that makes it easy to see the X-ray film by operating the operation rod projecting from the front side of the Schaukasten stand. The present invention relates to an easy-to-operate Schaukasten stand that can be held by a user.

[Prior Art] In a Schaukasten mount used to study conventional X-ray photographic films, an arcuate arm is attached to a side portion of the Schaukasten, and a stud-shaped projection is provided on a side pole of the mount, and There has been an arm provided with a hole having a slit into which the protrusion is engaged stepwise, and the protrusion is engaged with the hole having a desired inclination angle to incline the arm.

[Problems to be solved by the invention] However, the above-mentioned Schaukasten frame needs to be operated from the side of the frame when tilting the Schaukasten, changing the angle, or returning the Schaukasten to a vertical position. If you want to change the angle while considering, it is very troublesome because you have to move from the front position to the side position each time, and just by inserting the arm protrusion into the side pole hole. Therefore, there are problems such as rattling and instability.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a Schaukasten mount which allows the Schaukasten to be tilted from the front of the mount so that it can be securely held at that position.

[Means for Solving the Problems] The present invention has the following structure of the Schaukasten frame for the above-mentioned purpose. That is, an H-shaped mount 1 including a pair of side poles 1a, 1a and a center bar 1b mounted between the side poles 1a, 1a is provided, and the Schaukasten 3 is above the center bar 1b of the mount 1. Both sides are pivotally supported by the side poles 1a, 1a so as to be tiltable.

An arm 6 having an upward arcuate shape and a plurality of concave portions 7 on the outer arcuate surface is pivotally attached at one end to the back surface of the Schaucasten 3 and is rotatable in the vertical direction.

On the back surface of the center bar 1b of the gantry 1, a bracket 8 having a slide plate 10 that moves up and down is provided so as to project upward. The slide plate 10 has an inner arcuate surface 6b of the arm 6. A protrusion 12 is slidably contacting with the bracket 8. A pin 9 is slidably contacted with the outer arcuate surface 6a of the arm 6 at the upper end of the bracket 8 so that the arm 6 is sandwiched between the protrusion 12 and the pin 9. .

Further, the bracket 8 is provided with an operating rod 13 projecting toward the front side of the gantry 1 and is elastically ejected to the back side of the gantry 1. A sliding piece 15 is attached to the bracket 8 side of the operating rod 13. A downward projection 15a having a step slightly larger than the depth of the concave portion 7 of the outer arcuate surface 6a of the arm 6 is provided on the lower surface of the sliding piece 15 on the side of the operating rod 13, and the operating rod is also provided. 13
The surface of the protruding portion 15a on the opposite side to the side is formed as an inclined surface 15b toward the side of the operating rod 13, and the sliding piece 15 is provided with the sliding plate 1.
The lower part of 0 is in contact with the engaging portion 10a which is orthogonal to the plate surface of the slide plate 10.

[Operation] In the Schaukasten frame thus configured, when the operating rod 13 is pulled toward the front side against the resilience, the protrusion 15a of the sliding piece 15 is disengaged from the engaging portion 10a of the slide plate 10, and the sliding piece is moved. A gap corresponding to the step of the protrusion 15a is formed between the lower surface of 15 and the engaging portion 10a.

Therefore, the slide plate 10 can be raised by the above step,
Since the arm 6 whose upper surface, that is, the inner arcuate surface 6b is pressed by the protrusion 12 can rotate about the shaft fulcrum while pushing up the protrusion 12 provided on the slide plate 10, the pin 9 moves from the concave portion of the arm 6. It can rise to the inner arcuate surface 6b.

Then, in that state, tilting the Schaucasten 3 causes the arm 6
Is pulled out to the front by the Schaucasten 3 and the pin 9
Slides on the outer arcuate surface 6a of the arm 6. So operation rod 13
Since the operating rod 13 is repelled when is released from the hand, the slanted surface of the protrusion 15a of the sliding contact piece 15 is attached to the end edge of the engaging portion 10a of the slide plate 10.
15b abuts, the edge of the engaging portion 10a moves along the inclined surface 15b, the slide plate 10 is pulled down, and the projection 12 on the upper portion presses against the inner arcuate surface 6b of the arm 6.

Next, when the Schaukasten 3 is further tilted, when the next concave portion 7 reaches the position of the pin 9, the concave portion 7 engages with the pin 9 and the sliding piece
Since the lower surface of 15 is completely in pressure contact with the engaging portion 10a, the arm 6 is locked, and the Schaukasten 3 keeps its inclined state, and can be operated only from the front side of the gantry 1. Therefore, the Schaukasten can be inclined as desired. You can

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

1 is a pedestal and a side pole 1 using a square pipe
It is formed in a substantially H shape by a and 1a and a center bar 1b mounted between the side poles 1a and 1a. The casters 2 are attached to the legs of the side poles 1a so that the gantry 1 can move.

Also, between the side poles 1a, 1a, the upper part and the lower part of both sides are suspended by bolts on the upper stage, and in the lower stage, the shaw casten 3 is pivotally supported by the side poles 1a, 1a on both upper sides and tiltable. Installed on.

A channel-shaped bracket 5 is attached to the approximate center of the rear surface of the Schaukasten 3 with the opening side facing outward, and a shaft 5a provided between both side walls of the bracket 5 allows the arm 6 to rotate vertically. It is supported. The arm 6 has a plate shape having a width in the vertical direction and has an upward arc shape, and a plurality of semicircular recesses 7 are provided on the outer arc surface 6a.

Reference numeral 8 is a channel-shaped bracket having a U-shaped cross section narrower than the bracket 5, and both side walls 8b of the upper half portion,
The opening side of 8b 'is notched by a certain width, and it is attached to the back surface of the center bar 1b at the opening side of the lower half portion, and the upper end is located slightly above the shaft attachment portion of the arm 6.

A pair of pins 9 and 9'are provided on the upper and lower portions between both side walls 8b and 8b 'of the bracket 8, and an abutment portion 10a having a vertically elongated strip shape and a lower end portion bent in a direction orthogonal to the plate surface is provided. A slide plate 10 is provided on the top and bottom of the slide plate 10, and the pins 9 and 9'are inserted into elongated holes 10b and 10b 'which are slanted in parallel with each other, and the inner surface of one side wall 8b of the bracket 8 is formed. Sliding contact,
The slide plate 10 moves upward to the center bar 1b side, or moves downward to the side opposite to the center bar 1b, and moves vertically or obliquely up and down.

The upper pin 9 has the slide plate 10 and the bracket 8
A disc 11 made of synthetic resin is rotatably inserted between the disc 11 and the inner surface of the other side wall 8b ', and the arm 6 is interposed between the disc 11 and the slide plate 10. .

Further, a locking projection 12 orthogonal to the plate surface is provided at an upper end portion of the slide plate 10 at a position facing the pin 9 with the arm 6 sandwiched therebetween and at an upper position in the inclination direction of the elongated hole 10b. A cylindrical body made of synthetic resin is fitted on the protrusion 12, the protrusion 12 is always in sliding contact with the inner arcuate surface 6b of the arm 6, and the pin 9 is in slidable contact with the outer arcuate surface 6a. Then, when the arm 6 moves and the recess 7 comes to the position of the pin 9, the arm 6 descends, and the pin 9 enters the recess 7, so that the depth of the recess 7 is provided between the protrusion 12 and the inner arcuate surface 6b. It is designed to create a margin.

The Schaukasten 3 is in a state in which the pin 9 is inserted into the recess 7 closest to the bracket 5 of the arm 6 with its surface in the vertical direction, and the slide plate 10 is lowered by the depth of the recess 7. .

In addition, the channel-shaped bracket 8 has a hole formed in the bottom wall 8a of an operation rod 13 projecting from between the Schaukasten 3 and the center bar 1b toward the front side of the gantry 1 and both side walls 8b on the opening side. It is inserted into a mounting plate 14 provided between 8b 'and a hole formed in the mounting plate 14 and is supported substantially horizontally, and a rectangular parallelepiped sliding piece 15 is attached to an end portion of the operation rod 13 on the bottom wall 8a side of the bracket 8.
Has a central portion penetrating the operating rod 13 and the lower surface is attached substantially horizontally. Further, the sliding piece 15 has a trapezoidal protrusion 15a having a step slightly larger than the depth of the recess 7 of the outer arcuate surface 6a of the arm 6 at the end on the side of the operating rod 13 on the lower surface, that is, on the side of the mounting plate 14. The surface of the protrusion 15a opposite to the side where the operation rod 13 protrudes is a downwardly inclined surface 15b.

A coil spring is provided between the sliding piece 15 of the operating rod 13 and the mounting plate 14.
16 is inserted, the operation rod 13 is elastically bulged to the back side of the gantry 1, and the sliding piece 15 is pressed against the bottom wall 8a of the bracket 8.
In this state, the sliding piece 15 slides the top surface 15c of the protrusion 15a on the slide plate 10
It is brought into contact with the engaging portion 10a provided at the lower end of the.

Therefore, the arm 6 is pressed by the protrusion 12 and cannot rotate upward, and the pin 9 does not come off from the recess 7.

Reference numeral 13a is a grip of the operating rod 13 so that the operating rod 13 can be easily pulled. Reference numeral 17 is a stopper fitted to the tip of the operating rod 13 on the bracket 8 side, and is a bottom wall of the bracket 8.
It is attached so that the tip does not come out of 8a.

In this Schaukasten frame, when the Schaukasten 3 is tilted, pulling the operating rod 13 while holding the grip 13a from the front side of the gantry 1 causes the sliding piece 15 to move to the front side, so that the projection 15a slides. The plate 10 is disengaged from the engaging portion 10a, and a margin corresponding to the depth of the recess 7 is formed between the lower surface of the sliding piece 15 and the engaging portion 10a, so that the arm 6 can be raised by that amount.

Therefore, the inclination of the Schaukasten 3 can be changed to a desired angle, and the recess 7 and the pin 9 near that position can be engaged.

After that, when the grip 13a is released, the sliding piece 15 is pushed toward the bottom wall 8a side of the bracket 8 by the elastic force, and the sliding piece 15 causes the inclined surface 15b of the protrusion 15a to the end edge of the engaging portion 10a of the slide plate 10. Since the slide plate 10 is pushed down along the inclined surface 15b until the slide piece 15 comes into contact with the bottom wall 8a surface of the bracket 8, the top surface 15c of the protrusion 15a contacts the engaging portion 10a. It is pushed down until it abuts.

Along with this, the protrusion 12 provided on the slide plate 10 is attached to the arm 6
It comes into contact with the inner arcuate surface 6b of the pin and prevents the pin 9 from coming off the recess 7.

The holes 8c and 8c 'of the side walls 8b and 8b' of the bracket 8 are spare holes for the pins 9 and 9 ', and the positions of the pins 9 and 9'can be changed depending on the model of the gantry 1. ,
Also, the hole 5c of the side wall 5b of the bracket 5 can change the mounting position of the shaft 5a depending on the model of the gantry 1 and the size of the upper and lower stages of the Schaucasten. It can be inserted and removed by fitting.

[Effect] The Schaukasten frame according to the present invention is configured as described above. Since the slide plate is pulled down by pulling the operation rod from the front side of the frame, the arm attached to the Schaukasten is no longer held down. If the angle of the Schaucasten is changed and the operating rod is released when the pin is engaged with the recess at the position where the desired angle is reached, the arm is automatically locked and the position of the Schaucasten can be fixed. Alternatively, when the operation rod is pulled out from the concave portion of the arm by pulling the operating rod and the arm is moved after moving the arm away from the hand, the pin is automatically locked by the elastic force with the pin fitted in the concave portion.

Therefore, the angle of the Schaukasten can be set to a desired angle by operating only from the front side without operating from the side of the gantry.

Further, since the arm is pressed by the lock pin at the position where the arm has a desired angle, the arm is securely locked without rattling.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a Schaukasten stand according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is a side view of essential parts, and FIG.
FIG. 5 is a plan view of the same, FIG. 5 is a sectional view taken along line XX in FIG. 4, FIG. 6 is a sectional view taken along line YY, and FIGS. Is. 1 ... Stand, 3 ... Schaucasten, 5 ... Bracket, 6 ... Arm, 7 ... Recess, 8 ... Bracket, 9
...... Pin, 10 ...... Slide plate, 12 ...... Projection, 13 ...... Operation rod, 15 ...... Sliding piece, 16 ...... Coil spring.

Claims (1)

[Scope of utility model registration request] 1. An H-shaped mount comprising a pair of side poles and a center bar mounted between the side poles, wherein a Schaukasten is supported above the center bar so as to be tiltable on both sides to the side poles. An arm having an upward arc shape and having a plurality of concave portions on the outer arc surface is pivotally attached at one end to the back surface of the Schaukasten, and a slide that moves up and down in the vertical direction is provided on the back surface of the center bar of the gantry. A bracket having a plate is provided so as to project upward, the slide plate is provided with a protrusion that slidably contacts an arcuate surface inside the arm, and an upper end portion of the bracket is a pin that slidably contacts an outer arcuate surface of the arm. Is provided projectingly, and the bracket is provided with an operation rod projecting toward the front side of the gantry, and is repulsed toward the back side of the gantry. A sliding piece is provided on the bracket side, and a downward projection having a step slightly larger than the depth of the concave portion of the outer arcuate surface of the arm is provided on the operation rod side of the lower surface of the sliding piece, and The surface of the protruding portion on the opposite side of the operating rod is an inclined surface facing the operating rod side, and the sliding piece is a lower part of the slide plate and is orthogonal to the plate surface of the slide plate. A Schaukasten stand that is in contact with the engaging portion of the.