JPH09313481A - Bed for testee body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a testee body bed which can couple a supporting member for a subject to be inspected with the body of the table without provision of any groove(s) to cause difficulty in cleaning works or enlargement of the width so much. SOLUTION: A supporting member 5 for a testee body is coupled by a coupling mechanism 6 with a testee body bed main body 2 which is installed as capable of inclining. The coupling mechanism 6 has a threaded member 13 which is fitted outside the testee body bed main body 2 in a holder 12 to be fitted to the undersurface of the testee body bed main body 2 through a recess 12d and projection 2a in such a way that a relative displacement in the longitudinal direction is possible while relative movement in the direction across the width is restricted. The supporting member 5 is pressed fast to testee body bed main the body 2 by screwing the threaded member 13 into the holder 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object mounting table used in, for example, an X-ray fluoroscopic imaging apparatus.

[0002]

2. Description of the Related Art A conventional subject mount shown in FIG. 5 is a mount base body 101 that is tiltably supported, and a pair of shoulder pads that are support members for the subject that are mounted on the mount base body 101. 102 and a connecting mechanism 103 for connecting each shoulder pad 102 to the mounting table main body 101.
And a pair of grooves 110 having an upward opening and having an inverted T-shaped cross section.
Are formed.

As shown in FIG. 6, the connecting mechanism 103 is provided.
Has a bolt 111 inserted into an elongated hole 102b formed in a protruding portion 102a from the outer surface of each shoulder pad 102, and a nut 112 screwed to the tip of the bolt 111. Diameter part 111a and nut 1
12, the protrusion 102a and the mounting table body 101
And can be released. The bolt 111 and nut 1
By moving 12 in the groove 110, the connecting mechanism 1
03 can be displaced along the longitudinal direction of the mounting table main body 101.

[0004]

In the above-mentioned conventional mounting table, the groove 110 formed in the mounting table main body 101 has an inverted T-shape, so that cleaning is difficult. Further, since the groove 110 is formed, there is a problem that the width dimension of the mounting table body 101 becomes larger than that required for mounting the subject.

If the operator forgets to tighten the bolts 111 and the nuts 112, the shoulder rest 102 is placed on the mounting table body 10 when the mounting table body 101 is tilted.
There is a possibility that it may fall off from No. 1 and cannot support the subject.

It is an object of the present invention to provide an object mounting table that can solve the above problems.

[0007]

DISCLOSURE OF THE INVENTION The present invention provides an object mounting table that includes a mounting table body that is supported so as to be tiltable, a supporting member for a subject, and a connecting mechanism that connects the supporting member to the mounting table body. In the connection mechanism, the connecting mechanism includes a holder fitted to the lower surface side of the mounting table body so that relative displacement in the longitudinal direction is possible via the concave portion and the convex portion and the relative displacement in the width direction is restricted, and the holder. In addition, a screw member screwed on the outside of the mounting table body, and a support member is pressed and fixed to the mounting table body by screwing the screw member into the holder.

According to the above structure, the holder is mounted on the lower surface of the mounting table body so that the relative displacement in the longitudinal direction is possible via the concave portion and the convex portion and the relative displacement in the width direction is restricted. The support member can be pressed and fixed to the mounting table body by screwing together the screw members on the outer side of the mounting table body. As a result, the supporting member can be provided without providing a groove, which is difficult to clean, in the mounting table body as in the conventional case, and without increasing the width dimension of the mounting table body more than necessary for mounting the subject. Can be connected to the mounting table body. Further, by loosening the screwing of the screw member, the connecting mechanism can be displaced relative to the mounting table body in the longitudinal direction, so that the connecting position of the supporting member to the mounting table body can be changed.

In the present invention, it is preferable that the connecting mechanism is pressed against the mounting table body by a moment based on a force acting on the supporting member along the longitudinal direction of the mounting table body. When the connecting mechanism is pressed against the mounting table main body by the moment, a frictional resistance is generated between the connecting mechanism and the mounting table main body to prevent the supporting member from being displaced in the longitudinal direction of the mounting table main body. Accordingly, even when a force along the longitudinal direction of the mounting table body acts on the supporting member that supports the subject when the mounting table body is tilted, the movement of the supporting member can be prevented, so that Displacement from the predetermined position can be prevented.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

The object mounting table 1 shown in (1) of FIGS. 1 and 2
Is placed between the X-ray irradiation device and the X-ray image receiving device, and is provided with a mounting table main body 2, a supporting device 3 for supporting the mounting table main body 2 so as to be tiltable, and the mounting table main body 2. A pair of shoulder rests 5 that are support members for the subject 4, a pair of connecting mechanisms 6 that connect the shoulder rests 5 to the mounting table body 2, and a step 7 formed on the upper surface of the mounting table body 2. Prepare

The mounting table main body 2 has a so-called frameless structure, and unlike the frame structure, the shadow of the frame does not appear in the fluoroscopic photograph. (1) and (2) in FIG.
As shown in FIG. 2, the convex portions 2a protruding downward are provided along the longitudinal direction from both side edges of the mounting table body 2 on the head side.

As shown in (1) and (2) of FIG. 3, each connecting mechanism 6 has a pair of upper and lower holders 11 and 12, and a screw member 13.

A first groove 11a into which the protruding portion 5a protruding outward from the outer surface of the shoulder pad 5 can be inserted into the upper holder 11 along the width direction of the mounting table body 2, and the first groove 11a. Which opens to the lower surface while communicating with the groove 11a of
Groove 11b is formed by both grooves 11a and 11b so as to form a T-shape in a side view. Further, the upper holder 11 is formed with a through hole 11c communicating with the first groove 11a and opening on the upper surface. That shoulder rest 5
An elongated hole 5a 'having a longitudinal direction in the width direction of the mounting table body 2 is formed in the protruding portion 5a.

The lower holder 12 is block-shaped, and the vertical dimension of the inner portion 12a of the mounting table body 2 is smaller than the vertical dimension of the outer portion 12b. A female screw hole 1 having a vertical axis is provided on the outer side portion 12b.
2c is formed. A recess 12d having an upward opening is formed in the inner side portion 12a. The lower holder 12 is fitted to the lower surface side of the mounting table main body 2 via the concave portion 12d and the convex portion 2a. By this fitting, relative displacement of the lower holder 12 in the width direction and the longitudinal direction with respect to the mounting table body 2 is regulated, and the mounting table is loosened by loosening the screwing of the screw member 13 into the female screw hole 12c. Only the longitudinal displacement of the lower holder 12 with respect to the main body 2 is possible. Further, a part of the upper portion of the lower holder 12 is a bulging portion 12e to be inserted into the second groove 11b formed in the upper holder 11,
The upper holder 11 and the lower holder 12 can be aligned with each other. In addition, the upper surface of the bulging portion 12e and the shoulder pad 5 inserted into the first groove 11a of the upper holder 11
A gap is provided between the lower surface and the lower surface of the protruding portion 5a.

The screw member 13 includes a through hole 11c of the upper holder 11, grooves 11a and 11b, and a long hole 5 of the shoulder pad 5.
A male screw portion 13a which is inserted into a'and is screwed into the female screw hole 12c is formed on one end side, and a shoulder pad 5 is formed on the other end side.
A large diameter portion 13b is formed in contact with the protruding portion 5a, and the other end is a knob 13c. By screwing the screw member 13 into the female screw hole 12c on the outer side of the mounting table body 2, the protruding portion 5a of the shoulder pad 5 is pressed and fixed to the mounting table body 2 via the upper holder 11. Further, by loosening the screwing of the screw member 13 into the female screw hole 12c,
The pressing fixation can be released.

As shown in FIG. 1, when the mounting table body 2 is tilted so that the head of the subject 4 faces downward, as shown in (1) and (2) of FIG. By supporting, the force F along the longitudinal direction of the mounting table body 2 acts on the shoulder rest 5. On the basis of the force F acting on the shoulder rest 5, a moment M around the mounting table body 2 in the vertical direction acts on the connecting mechanism 6. Due to the moment M, the lower holder 12 of the connecting mechanism 6 is pressed against the outer surface 2b of the mounting table body 2, the outer surface 2a 'of the convex portion 2a, and the inner surface 2a "of the convex portion 2a, and the pressing load f acts. To do.

According to the above structure, the lower surface of the mounting table body 2 is fitted so as to be capable of relative displacement in the longitudinal direction via the concave portion 12d and the convex portion 2a and restricted in the relative displacement in the width direction. By screwing the screw member 13 to the side holder 12 on the outer side of the mounting table body 2, the shoulder pad 5 can be pressed and fixed to the mounting table body 2. As a result, it is possible to provide the mounting table main body 2 with no difficult-to-clean groove as in the conventional case, and to increase the width dimension of the mounting table main body 2 more than necessary for mounting the subject 4. The shoulder rest 5 can be connected to the mounting table body 2. Further, by loosening the screwing of the screw member 13, the connecting mechanism 6 can be displaced relative to the mounting table body 2 in the longitudinal direction, so that the connecting position of the shoulder pad 5 to the mounting table body 2 can be changed.

Further, when the mounting table body 2 is tilted, a moment M based on a force F acting on the shoulder rest 5 by the support of the subject 4 causes the coupling mechanism 6 to be pressed against the mounting table body 2 to exert the above-mentioned pressing load. By f, the connecting mechanism 6
A frictional resistance that prevents the shoulder pad 5 from being displaced in the longitudinal direction of the mounting table body 2 is generated between the mounting table body 2 and the mounting table body 2. As a result, even if a force F acts on the shoulder rest 5 due to the support of the subject 4, the movement of the shoulder rest 5 is blocked, so that even if the screw member 13 is forgotten to be tightened, the subject on the mounting table main body 2 is prevented. The displacement of the specimen 4 from the predetermined position can be prevented.

The present invention is not limited to the above embodiment. For example, as shown in FIG.
The present invention can also be applied to the subject mounting table 1'which is cantilevered and supported by the main body of the apparatus via the support arm 54 between the X-ray irradiator 52 and the X-ray image receiver 53. Alternatively, a male screw may be formed on the lower holder and a female screw may be used as the screw member. Further, the support member of the subject is not limited to the shoulder rest, and for example, when connecting a bar-shaped handrail along the longitudinal direction of the mounting table body or a grip along the up-down direction of the mounting table body to the mounting table body. The invention can be applied.

[0021]

According to the present invention, the support member of the subject can be connected to the mounting table main body without providing a groove that is difficult to clean and unnecessarily increasing the width dimension, and from a predetermined position of the subject. It is possible to provide an object mounting table that can prevent the displacement of the object.

[Brief description of drawings]

FIG. 1 is a side view of a subject mounting table according to an embodiment of the present invention.

FIG. 2 is a plan view of (1) and a plan view of a main part of the subject mounting table according to the embodiment of the present invention.

3A and 3B are a front sectional view and a side view, respectively, of a main part of the subject mounting table according to the embodiment of the present invention.

FIG. 4 is a perspective view of a subject mounting table according to a modified example of the present invention.

FIG. 5 is a partial perspective view of a conventional subject mounting table.

FIG. 6 is a partial cross-sectional view of a conventional subject mounting table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mounting table 2 Mounting table main body 2a Convex part 4 Subject 5 Shoulder pad (supporting member) 6 Connecting mechanism 12c Female screw hole 12d Recessed part 13 Screw member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Wataru Miyamoto Wataru Miyamoto No. 1 Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto City Kyoto Prefecture Shimazu Manufacturing Sanjo Factory

Claims (2)

[Claims] 1. A subject mounting table including a mounting table main body that is tiltably supported, a support member for a subject, and a coupling mechanism that couples the supporting member to the mounting table body. On the lower surface side of the mounting table main body, a holder fitted so that relative displacement in the longitudinal direction is possible via a concave portion and a convex portion and relative displacement in the width direction is restricted, and on the outside of the mounting table main body in the holder. An object mounting base, comprising: a screw member to be screwed together, and the support member is pressed and fixed to the mounting base main body by screwing the screw member into a holder. 2. The subject mounting table according to claim 1, wherein the connecting mechanism is pressed against the mounting table body by a moment based on a force acting on the support member along the longitudinal direction of the mounting table body.