JP3251482B2 - Chair structure of dental x-ray machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a chair in a dental x-ray apparatus, and more particularly to a height adjustment structure of the chair.

[0002]

2. Description of the Related Art FIG. 4 is an overall configuration diagram for explaining an example of a conventional dental X-ray apparatus, in which 1 is a column, 2 is an X-ray source, and 3 is a seat chair. A patient sits on a chair 3 and an X-ray technician presses an X-ray film against the back of a tooth to be X-rayed in the patient's mouth and irradiates X-rays from the X-ray source 2 to the tooth. X-ray photography. Also, 4,
Reference numerals 5 and 6 denote stopper pin insertion holes for inserting the stopper pins 3a provided in the chair 3, and by changing the position for inserting the stopper pins 3a as shown by broken lines in the figure, The height of 3 is adjusted.

[0003]

As described above, the dental X-ray apparatus is provided with a chair, and the height of the chair is adjusted according to the body shape of the patient. Each time, I have to pull in and out the chair,
The work was very troublesome. In addition, in addition to the illustrated example, for example, a chair that is turned up and down by turning a manual handle provided on a support, or a seat provided separately from the support using a compressed gas cylinder. Various types have been proposed, such as those that move up and down, but all of them are always satisfactory, such as troublesome operation, difficulty in setting the height position, and instability. It was not something.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a chair structure of a dental x-ray apparatus in which the height position can be easily adjusted and which is stably fixed at the adjustment position. It was made for the purpose of.

[0005]

According to the present invention, there is provided a dental X-ray apparatus chair which can be moved up and down along the column and fixed at a predetermined position. The support has a slide groove extending in the vertical direction, and a locking recess provided on the slide surface at a predetermined interval in the vertical direction, and the chair is provided in the slide groove. A slide plate that is movable in the up and down direction along with the lock recess and has a pin hole for inserting a lock pin therethrough; and a slide plate integrally attached to the slide plate and integrated with the slide plate. A chair mounting member that moves up and down on the outside of the slide groove along the support column, a chair member that is rotatably mounted on the chair mounting member in a horizontal direction and above the horizontal direction by 90 °, seat And a lock pin that is activated when the child member is turned upward by 90 °, and the lock pin engages with the locking recess through a pin hole of the slide plate when the chair is fixed, and locks the chair. When rotated upward by 90 °, it is detached from the lock recess, the slide plate and the chair mounting member can move up and down along the slide groove, and can be engaged with another lock recess. This makes it possible to easily adjust the height position of the chair, and to reliably fix the seat position to the adjustment position.

According to a second aspect of the present invention, in the first aspect of the present invention, the column has a slit narrower than the slide groove between the slide plate and the chair mounting member in a vertical direction parallel to the slide groove. Characterized in that the slide plate and the chair mounting member are integrally mounted through the slit, whereby the chair can be more reliably and stably fixed to the support. It is.

According to a third aspect of the present invention, in the first or second aspect, the chair attachment member has a stopper,
When the seat member is in a horizontal state, the stopper prevents the seat member from rotating below the horizontal direction, thereby making the seat chair more stable.

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the lock pin is constantly pressed toward the slide groove by an elastic member, and the seat member is When the seat is rotated upward by 90 °, the seat is separated from the surface of the slide groove against the pressing force of the elastic member by the rotation of the seat, whereby the height of the seat is adjusted. It is intended to make work easier.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, a handle is provided at a lower front portion of the chair portion, thereby adjusting the height position of the chair. It made the work easier.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an enlarged side view of a main part for explaining a chair structure of a dental X-ray apparatus according to the present invention, FIG. 2 is an exploded inclined view, and FIG. 2 and 3, reference numeral 1 denotes a support,
As shown in FIG. 4, an X-ray generator is provided on the upper portion of the support 1. As shown in FIG. 2, the support column 1 is provided with a slide groove 7 extending in the vertical direction. A slide plate 11 is inserted into the slide groove 7 and moves up and down along the slide groove 7. It has become. At the front of the slide groove 7, a slit 7a having a width smaller than the width W of the slide groove is formed in parallel with the slide groove 7, and the slide plate 11 and the seat mounting member are passed through the slit 7a. 12 are integrally connected by screws or the like.

Accordingly, the slide plate 11 is
It does not fall out of the chair,
Can move up and down along the slide groove 7 integrally with the slide plate 7. Reference numerals 13 and 13 denote seat chair member fixing arms for fixing the chair member 14. These seat member fixing arms 13 and 13 are rotatably mounted around pins 15 and extend from the pins 15. The end that was
Stopper pin 1 mounted on seat mounting member 12
6 so that the chair member 14 does not tilt forward.

In front of the lower part of the seat member 14, a handle 17 is provided.
When the chair 17 is moved to the position shown by the chain line in FIG. 1 and the handle 17 is moved up and down, the chair Very easy to do.

A lock pin 18 is provided on the seat mounting member 12 so as to be movable in the direction of arrow A by a pin 19, and the lock pin 18 passes through a lock pin hole 11 a provided in the slide plate 11. The slide spring 20 constantly presses the slide groove 7. The lock pin 18 is formed integrally with the operating lever 21, and the operating lever 21 is also pressed integrally with the lock pin 18 by the spring 20 toward the surface of the slide groove 7.

As mentioned above, the chair member 14 is
5 is mounted to be rotatable about a, the said seat chair member 14, in FIG. 1, when rotated in the direction of arrow R _1, the back of the chair seat member fixed arm 13, Figure 3 As shown, the lock pin operating lever 21 hits the lock pin operating lever 21 and the lock pin 18 and the spring 2
The lock pin 18 moves away from the surface of the slide groove 7 against the pressing force of 0 to move the seat member 14 up and down.

A recess (FIG. 1) in which the lock pin 18 is inserted into the slide groove 17 at predetermined intervals in the vertical direction.
In FIG. 3, 7b) is formed, or as shown in FIG. 3, the stopper plate 22 is attached to the surface of the slide groove at predetermined intervals in the vertical direction to form the recess 7b. And lock pin lever 2
When the lock pin 18 is pulled out in the direction of arrow C against the pressing force of the spring 20, the lock pin 18 comes out of the concave portion provided in the slide groove or the stopper plate 22 to move forward, and 14 can be moved up and down, and is inserted and fixed in the upper or lower concave portion 7b.

[0016]

According to the present invention, there is provided a dental X-ray apparatus chair which can be moved up and down along a column of a dental X-ray apparatus and which can be fixed at a predetermined position. The column has a slide groove extending in the vertical direction, and a locking recess provided in the slide surface at a predetermined interval in the vertical direction.
It is movable vertically along the slide groove,
A slide plate having a pin hole for inserting a lock pin opposed to the lock recess; and a slide plate integrally attached to the slide plate and integrally with the slide plate, the outer side of the slide groove extending along the support column. A chair mounting member that moves up and down, and a chair member that is rotatably mounted on the chair mounting member in a horizontal direction and above the horizontal direction by 90 °,
A lock pin that is actuated when the chair member is turned upward by 90 °, and the lock pin engages with the lock recess through a pin hole of the slide plate when the chair is fixed. When the chair is rotated 90 ° upward, it is detached from the locking recess, and the slide plate and the chair mounting member can move up and down along the slide groove, and engage with another locking recess. The present invention is characterized in that it is possible to adjust the height position of the chair easily, and it is possible to securely fix the seat position to the adjustment position.

According to a second aspect of the present invention, in the first aspect of the present invention, the column has a slit narrower than the slide groove between the slide plate and the chair mounting member in a vertical direction in parallel with the slide groove. Characterized in that the slide plate and the chair mounting member are integrally mounted through the slit, whereby the chair can be more reliably and stably fixed to the support. It is.

According to a third aspect of the present invention, in the first or second aspect, the chair mounting member has a stopper,
When the chair member is in the horizontal state, the stopper prevents the chair member from rotating below the horizontal direction, whereby the chair is below the horizontal state. The chair is made more stable by preventing it from tilting.

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the lock pin is always pressed toward the slide groove by an elastic member, and the seat member is When the seat is rotated upward by 90 °, the seat is separated from the surface of the slide groove against the pressing force of the elastic member by the rotation of the seat, whereby the height of the seat is adjusted. It is intended to make work easier.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, a handle is provided at a lower front portion of the chair portion, thereby adjusting the height position of the chair. It made the work easier.

[Brief description of the drawings]

FIG. 1 is a side view of an essential part for explaining an embodiment of a chair of a dental X-ray apparatus according to the present invention.

FIG. 2 is an exploded perspective view of a main part for explaining an embodiment of a seat chair of a dental X-ray apparatus according to the present invention.

FIG. 3 is a side view of a main part of the dental X-ray apparatus according to the present invention when the chair is attached to a column.

FIG. 4 is a diagram showing an overall configuration of a conventional dental X-ray apparatus.

[Explanation of symbols]

1 ... prop, 2 ... X-ray source, 3 ... chair, 4, 5, 6 ...
Stopper pin insertion hole, 7: slide groove, 11: slide plate, 12: seat mounting member, 13: seat arm fixing arm, 14: seat member, 15, 19: pin, 16 ...
Stopper pin, 17 ... Handle, 18 ... Lock pin, 20 ...
Spring, 21: operating lever, 22: stopper plate.

Claims (5)

(57) [Claims] 1. A dental x-ray apparatus chair that can be moved up and down along a column and fixed at a predetermined position on a column of the dental x-ray apparatus, wherein the column extends vertically. A slide groove provided, and a locking recess provided at a predetermined interval in the vertical direction on the slide surface, the chair is movable in the vertical direction along the slide groove, A slide plate having a pin hole for inserting a lock pin opposed to the lock recess; and a slide plate integrally attached to the slide plate and integrally with the slide plate, the outer side of the slide groove extending along the support column. A chair mounting member that moves up and down, a chair member rotatably mounted on the chair mounting member in a horizontal direction and above the horizontal direction by 90 °, and turning the seat chair member upward by 90 °. Moved The lock pin is engaged with the locking recess through the pin hole of the slide plate when the chair is fixed, and when the chair is turned upward by 90 °, the lock pin is locked. The chair structure of the dental radiograph device, wherein the chair is detached from the locking recess, the slide plate and the chair mounting member can move up and down along the slide groove, and can be engaged with another locking recess. . 2. The support column has a slit narrower than the slide groove in a vertical direction between the slide plate and the chair mounting member, in parallel with the slide groove, and the slide plate and the chair are passed through the slit. The chair structure of a dental x-ray apparatus according to claim 1, wherein the mounting member is integrally mounted. 3. The chair mounting member has a stopper, and when the chair member is in a horizontal state, the stopper prevents the chair member from rotating below the horizontal direction. The chair structure of a dental X-ray apparatus according to claim 1 or 2, wherein: 4. The lock pin is formed by an elastic member.
The seat is always pressed toward the slide groove, and when the seat member is rotated upward by 90 °, the rotation of the seat chair prevents the elastic member from being pressed against the pressing force of the elastic member. The chair structure of a dental x-ray apparatus according to any one of claims 1 to 3, wherein the chair structure is separated from the surface. 5. The chair structure of a dental x-ray apparatus according to claim 1, further comprising a handle in front of a lower part of the chair portion.