JPH0496736A - Shiftable type x-ray device - Google Patents

Abstract

PURPOSE:To reduce the height of a supporting stay and carry out positioning speedily and easily by dividing the supporting stay into a movable stay and a supporting stay in the upper and lower stages and installing a spring balancer and a balance mechanism. CONSTITUTION:When a movable stay 14 is pushed down, a pulley 32 installed through a rod 37 pushes down a wire rope 35 set between pulleys 32 and 33, and the wire rope 35 set between the pulleys 33 and 34 shifts upwardly by the pushed-down portion, and the wire rope 35 between the pulleys 34 and 31 shifts downward, together with the movable stay 14. Further, the wire rope 35 set between the pulley 33 and a spring balancer 36 projects from the spring balancer 36 by the pushed-down portion for adjusting the length. When the movable stay 14 is set at an arbitrary height, the movable stay 14 is held at an arbitrary height by the spring balancer 36. Further, when the movable stay 14 is pushed up, the reverse operation is carried out. Accordingly, positioning in photographing can be carried out speedily and easily, and the forward viewfield in shift can be secured.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an X@tube holding mechanism for a mobile X-ray device.

[Conventional technology]

There are two types of X-ray tube holding mechanisms for conventional mobile X-ray devices.

The first method is a telescopic arm in which a telescopic arm 4 is provided on a support base 3 that can move up and down along a support column 2, as shown in FIG. It is a method.

The second method is to install a banter arm 9 on a support stand 8 that can move up and down along a column 7 as shown in FIG.
This is a vanter arm type in which the wire tube 10 can be moved in an arcuate direction.

[Problem to be solved by the invention]

The conventional device described above has the following problems. The telescopic arm system positions the X-ray tube by moving vertically and horizontally, so the height of the support was set high in case it would be necessary to take images from a high position. As a result, when the height of the support column is higher than the height of the door, it is difficult to take the device in and out of the hospital room.

Furthermore, in the vanter arm method, when fine-tuning the positioning of the X-ray tube during imaging, the X-ray tube moves in an arcuate direction, making positioning difficult.

An object of the present invention is to reduce the height of a support column in a telescopic arm system, and also to enable quick and easy positioning.

[Means to solve the problem]

In order to achieve the above object, the present invention divides the support of a mobile X-ray device into two stages, a movable support and an upper and a lower support, and also includes a spring balancer that balances the combined weight of the movable support and support base. This is a mobile X-ray device equipped with a balancing mechanism consisting of a combination of a wire rope and a pulley.

[Operation] The wire rope comes out of the spring balancer, passes through the pulley at the top of the column, and passes through the pulley in the movable column. moreover,
It passes through another pulley at the upper part of the column, passes through a pulley at the lower side of the column, passes through two pulleys provided at the upper corner of the movable column, and is attached to one end of the support base. Further, the movable support column is supported by the wire rope. When this movable column is pushed down, the wire rope between two pulleys located at the upper corners of the column lowers together with the pulleys in the movable column. The movable column then lowers with the wire rope, and the wire rope comes out as the spring balancer is lowered. At this time, if the movable column is stopped at a desired height, the balance is maintained by the spring balancer, and it stops at the desired height. Furthermore, when the support base is lowered, the wire rope comes out from the spring balancer while the movable column remains in place, and when the support base is stopped at a desired height, it is maintained at the desired height.

As a result, positioning during photographing can be easily performed.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a side view of a mobile X-ray apparatus provided with a balancing mechanism, and FIG. 2 is a sectional view taken along the line ■--■ in FIG.

In FIG. 1, reference numeral 11 denotes a trolley, a column 20 and an X-ray generator 13. One equipped with an X-ray controller 15.

12 is an X-ray tube provided on the supporter 30, and a telescopic arm 29
It is attached to the support stand 26 via.

13 is an X-ray generator, and 14 is a movable column which has a cylindrical shape so as to cover the column 20. 15 is an X-ray controller, 1
6 is a guide rail for moving the support stand 26 up and down by guide rollers 27; 17 is a telescoping mechanism that combines the support base 26 and a telescoping arm 29; and 20 is a column attached to the front end of the trolley 11. and rod 3
It is cylindrical so that the number 7 can fit inside. 23 is a guide roller that is attached to the lower part of the movable column 14 and moves on the support 20; 26 is a support stand that is installed perpendicularly to the movable column 14; the tip of this roller has a telescopic arm 29°, a supporter 30 and
A wire tube 12 is provided.

27 is a guide roller provided on the support base 26 and moves on the guide rail 16; 29 is a telescopic arm attached to the tip of the support base 26, and a supporter 30 and an X-ray tube are attached to the tip of the support base 26; 12 is provided, and a supporter 30
and one for moving the X-ray tube 12 perpendicularly to the movable column; 3o is a supporter for supporting the X-ray tube 12; and 31 is a pulley, one for each of the upper corners of the movable column 14.
pcs installed. A pulley 32 is provided inside the movable column 14 via a rod 37. 33 is a pulley, and a total of 2 pieces are attached to each of the upper parts of the column 20.
A pulley 32 and a rod 37 are inserted between the two pulleys 33. 34 is a pulley attached to the lower side of the support column 20.

These pulleys 31, 32, 33, and 34 are each provided with a groove through which the wire rope 35 passes.

35 is a wire rope that goes from the spring balancer 36, passes through the first pulley 33, and connects to the pulley 32. The second pulley 33, the second pulley 34. The two pulleys 31 pass in this order, and the support stand 26
attached to one end of the

36 is a spring balancer provided at the lower part of the pillar 20, and includes a spiral pulley having a spiral rope groove;
The helical pulley is equipped with a leaf spring that winds it in a certain direction, and 37 is a rod that is attached to the movable column 14, and the pulley 32 is provided at the tip of the rod.

The numbers in FIG. 2 are the same as the numbers in FIG. 1, so the explanation will be omitted.

The operation will be explained below. First, when the movable column 14 is pushed down, the pulley 32 attached through the rod 37 within the movable column 14 pushes down the wire rope 35 between the pulleys 33. Then, the wire rope 35 between the pulley 33 and the pulley 34 moves upward by the amount that the pulley 33 and the pulley 34 are pushed down, and the pulley 34
The wire rope 35 between the pulley 31 and the pulley 31 moves downward together with the movable column 14. Moreover, in order to adjust the length of the wire rope 35 between the pulley 33 and the spring balancer 36,
The wire rope 35 comes out from the spring balancer 36 by the amount pushed down. When the movable column 14 is stopped at an arbitrary height, it is maintained at the arbitrary height by the spring balancer 36. In addition, when pushing up the movable column 14,
Performs the opposite action when pressed down. Next, when the support stand 26 is pushed down, the wire rope 35 on the pulley is pulled, and the wire rope 35 comes out from the spring balancer 36 by the amount of tension. At this time, when the support stand 26 is stopped at an arbitrary height, it is balanced by the spring balancer 36 and stopped at the arbitrary height. The support stand 26 moves on the guide rail 16 on the movable column 14 by guide rollers. Support stand 26
When pushed down to the lower end of the movable column 14, the movable column 14
It goes down with me. In addition, when raising the support base 26, the operation is the reverse of the operation when pushing it down.

〔Effect of the invention〕

According to the present invention, positioning when photographing can be done quickly and easily. In particular, height positioning can be done quickly and easily. Furthermore, by making the height of the pillars lower, the pillars do not hit the wall and make it difficult to pass when entering and exiting the hospital room. Furthermore, by lowering the support column, forward visibility can be secured when moving.

[Brief explanation of the drawing]

Fig. 1 is a side view of a mobile X-ray device equipped with a balancing mechanism, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig.
This figure is a side view of a conventional telescopic arm type mobile X-ray apparatus, and FIG. 4 is a side view of a conventional vanter arm type mobile X-ray apparatus. DESCRIPTION OF SYMBOLS 11... Trolley, 12... X-ray tube, 14... Movable column, 20... Pillar, 26... Support stand, 31-34.
...Pulley, 35...Wire rope, 36...Spring balancer.

Claims (1)

[Claims] 1. A support installed on a cart, a movable support supported to be able to move up and down along the support, an X-ray tube provided on the movable support, and an X-ray tube that supports the X-ray tube. a telescoping arm on which a supporter moves in a direction perpendicular to the movable column; a support base on which the telescoping arm, the X-ray tube, and the supporter are movably supported along the movable column; A mobile X-ray device, characterized in that it is provided with a balance mechanism for holding the support or the X-ray tube at an arbitrary height. 2. A balancing mechanism is provided in the support column and the movable support column for changing the direction of the wire rope, including a spring balancer provided in the support column, a wire rope whose both ends are connected to the spring balancer and the support base, and a balance mechanism provided in the support column and the movable support column. The movable type X according to claim 1 having a pulley
line equipment.