JPS58109008A - Chair or armchair - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a modified chair or a chair with armrests.

More specifically, in the first invention, the armrest in front of the chair is provided with a hydraulic lift within the support of the chair, and the chair or armrest is provided with a roller that straddles the axle on the base of the chair. In the venue, the armrests of this chair are equipped with round stoppers to fix the chair to the floor RFIK, and the armrests of the nine chairs are related to the chairs.

t'-) A chair having hydraulic pressure Is#I for lifting and lowering, and an armrest in front of the chair having a device to keep the base of the chair stationary with respect to the floor surface. There is.

Conventional hydraulic lifts use the original spring hydraulic jack, which can be multiplied by nine additional lifts. Such a V-yaft or ram has an axial cylinder and is raised and lowered by means of a liquid suction bath and a pump. The pump typically has a pumping member connected to the cylinder and disposed along a horizontal axis. Disadvantages arise when the pump and cylinder are arranged along mutually intersecting axes. This is because if the pump is placed close to the base of the chair, this bond will protrude from both ends of the V ring.

In addition, the conventionally required components of Tolyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy, bonded yyyyyyyyyyyyyyyyyyyyyyyyyyyyyysides with bonde” as described above! When installing, it is not possible to use a normal base, so it is difficult to use both outside and usability! In addition, the conventional stoppers used for chairs or armrests are not easy to use, so when installing a chair or armrest, it is necessary to make a special base using rfAla! It is necessary to transform the base -)'#:,.

An object of the present invention is to provide a chair-straddling armrest equipped with a hydraulic seat lifting mechanism and a stopper for lifting the chair or armrest to the floor surface in order to eliminate the above-mentioned inconveniences. It is.

More specifically, the object of the present invention is to provide a hydraulic V-) lifting IN structure for chairs and armrests.

Each member that makes up this elevating mechanism can be stored in the support sleeve of the chair or the armrest. A hydraulic V-) lifting mechanism of appropriate dimensions and construction is provided.

Another object of the present invention is that the chair or armrest is a hydraulic seat lifting mechanism for the chair that does not require a special support in the base, i.e., its assembly and use requires another expensive and irrational process. 411I is a hydraulic seat lifting mechanism that does not require any special parts. ,·It is to be.

Still another object of the present invention is that the armrest in front of the chair is a round stopper for fixing the chair, especially a chair with wheels or rollers, or the armrest in a fixed position on the floor, and is easy to use. The chair or armrest to which the stopper is fixed does not require changing the shape of the chair base.
The main objective is to provide a stopper with good performance, robustness, and practical operation.

The said objective is achieved by attaching a hydraulic lift to the chair or armrest. This hydraulic lift si
! is bonded along the vertical axis of the shell.

The chair or armrest is fixed to the chair by means of a truncated conical connecting member (1), which is equipped with a hydraulic cylinder, pulp and liquid tanks. Here, the armrest of the chair 57x is formed in such a size that it can fit inside the support sleeve of the chair.

A liquid tank is formed between the outer surface of the hydraulic cylinder and the inner surface of the shell.

The pump piston is actuated by one end of the lever. When the user operates the other end of the lever with his or her foot, the chair or armrest rotates relative to the base of the chair.

When the user uses a lever to actuate the pump piston, liquid is drawn from the tank and pumped into the hydraulic cylinder. As a result, the V shaft in the hydraulic cylinder rises, and the V shaft connected to this f/+ shaft also rises.

When the pump piston is fully pressed and reaches the bottom of one stroke, the /< S” valve is activated and the liquid returns to the tank. Therefore, the V-shaft in the hydraulic V-rim moves downward, Go down to the bottom of the journey.

The chair of this invention has wheels or lobes attached to its base.

The armrests of Jin's chair have stoppers (also based on this invention) to keep the chair firmly on the floor.
It is attached. In front of this stopper chair, the armrest is fixed in the hollow of the base of the chair, that is, the spoke. It consists of a bin, a key-shaped prelifter fixed to the bin, a spring that biases and holds the plotter upward, and a U-shaped rod, and also has pushers, buttons and legs on both ends of the bin. are respectively attached to the plotter, and the plotter is movable within the i'1 guide formed between the hollow body [11 and the bin, and the plotter has a surface with respect to the 1 & 100 axes of the bin. Parallel grooves and inclined nine grooves, and a potted part are formed, one end of said rod slides in said groove, and the other end is fixed to a hollow body, and by this rod a prelifter and a bottle fixing the profter. The top- and bottom-ends of the stroke are set, and the n4 cocoon pad can take on extreme positions. The first is when the plotter is pushed up by the spring and positioned at the top end of its stroke. In this position, the legs of the stopper are off the floor, so the armrests in front of the chair can move freely. can be done. The second is an intermediate position obtained by the user by pressing a button and held by the engagement of the rod end in the forest of the plotter's interior.

With this much MKjP, the block is at the bottom of the stroke f:
The legs are pressed against the floor by the springs, so the armrests for straddling the chair do not allow the chair to move. -lit is possible.

The chair-shaped armrest of this invention is a hydraulic lift for chairs.
The functional and structural features of the device and the stopper can be better understood from a detailed description based on the drawings showing a preferred embodiment of the invention, but this practical example is not intended to limit the scope of the invention. do not have.

Next, one embodiment of the present invention will be described according to @l*. The lift 1Is1 of the present invention is placed in the sleeve 2 and vertically moved therein. This sleeve 2 supports a stand 5, to which the armrests of the chair (not shown) are fixed.

The elevator 1ij has a luer that slides in the sleeve 2 and is fixed to the chair base 4 by a frustoconical attachment 5 and a threaded ring 6. A hydraulic cylinder 10 is disposed inside the cylinder luer, and a V shaft 8 provided at the center of the V cylinder 10 is connected to a base 5 by a ball 9.
It acts on The vertical movement of the V-shaped shaft 8 can be controlled by means of a lever 11 provided on the base 4 to rotate the lever 11 about a moving point 22. This bastard V bar 1
1#f The user can operate it with his or her feet. The shaft 8 is operated by a pump 12. The piston 18 of the bonder 12 is actuated by the lever 11 to move inside the china dust 19. A lug 17 is attached to the end 5IIK of the lever 11, and a piston 18 is urged against the lobe 17 by a spring 20 and supported in good condition.

The first pedestal 19 of the bonder 12 is connected to a tank 15 in which oil or liquid is sealed via a pulp 14 with a whirring attachment, and is also connected to a chamber 16 of a hydraulic cylinder 10 via the pulp 15. .

It is formed between the inner wall of the tank 15FiV luer and the outer wall of the V cylinder 10, and both ends thereof are closed.

The piston 18 pulls oil from the tank 15 into the pedestal 21 when suctioning, and pumps the oil out of the chamber 16 of the hydraulic V cylinder 10 when compressing, so the shaft rises by 8 degrees. When the lever 11 is actuated to continuously actuate the piston 18, the shaft 8 is raised vertically, and accordingly the V-shaped shaft of the chair is raised.

When the lever 11 is pushed further downward and the piston 18 is raised to a height of one foot, the pulp 15 is actuated by the piston 18, and oil flows into the tank 13, so that V-) is lowered.

The novelty of the lift 1111 of this invention is that the tank 13
The hydraulic V cylinder 10 having the Vx cylinder, shaft 8 and bonder 12 are both arranged around the same vertical axis and housed within the sleeve 2.

Therefore, the hydraulic lift Ja1 for the chair bottom and armrest of the present invention uses the conventional hollow sleeve 2 and base 4KV-
) can be housed in the space between the central pillar or shaft for connecting.

The base 4 of the chair of this invention is equipped with wheels, i.e., wheels, but the chair can be held on the floor at El@5! ! It is also possible to attach a stopper to prevent this.

tIg3F1! ! Referring to FIGS.
It has a hollow body 31 fixed to it by a screw 33. A pin 28 is disposed inside the hollow body 31 and protrudes above and below the hollow body 31. Put V on the top end of pin 28.
An X button 26 is attached to the leg 24, and a w424 is attached to the lower end to support it against the floor.The leg 24 is covered with rubber or felt 27 to improve grip on the floor. It is. The bin 28Vi connects each member and holds the members within the guide.

Finally, by moving the pin 28 along the axis, said member can be adjusted. The pin 28 is fixed to a small block 29 by a dowel 34. Block 29 operates within a hollow or vertical linear guide 32. Here, the line guide 32 is formed between the inner surface of the hollow body 31 and the outer surface of the pin 28.

By the spiral spring 55 surrounding the pin 28,
Pro; ri29. Pin 28 and the deck V1 port fixed to pin 28! The pin 26 and legs are forced upward.

When the user presses the deshe button 26, all the members 11r are actuated and the small spring 36 disposed inside the M124 is compressed.

The action of the spring 36 presses the ll1i124 against the floor surface, so that the chair can be fixed.

The force applied by the user's foot is automatically maintained at a constant level, and then the spring 36 -
A small rod 50 is used to maintain the pressed state. Since the plotter 29 is held at the intermediate position WIK by the rod 30, the block 29 is always urged upward by the spring 35.

The curved tip 57 of the U-shaped rod 30 is inserted into the hollow formed by the hollow body 31, and the curved tip 57 is inserted into the hollow formed by the hollow body 31.
It is formed on the 290 side of the 8Vi block and slides inside the holder 40. The prisoner 40 #i consists of a part parallel to the vertical @ of the bin 28, a part inclined, and a forest-like part.

When block 29 is located at the upper end of the stroke, leg 24#-
The plotter 29, which is not in contact with the i-floor rrJ25, is held at the top end of its stroke by the biasing force of the spring 35.

On the other hand, when the block 29 is held in the middle, the leg 2
4 is in contact with the floor surface 25, and the spring 36 makes the floor surface 25
is being forced to.

Therefore, by operating the block 29, the leg 24
The action on the floor 725 is performed. Here, since the plotter 29 operates along the linear guide 52, it cannot take two specific positions, and the position of Wgl is the fifth position.
As shown in the figure, this is the position due to the stopping or checking operation of the rod 50. Here, one end 3 of the rod 50
7, the KvA inside the hollow body 51 is determined as shown in FIG. When the user presses down the V-shaped button 26, the plotter 29 descends, and the other end 58 of the radar 30 enters the groove 40 (from the left side). When released, the plotter 29 tries to return upward, but the other end 38 of the rod 30 slides inside the beak 40 and holds the block 29 in the forested part 59.
The plotter 29 cannot return to the upper end; in this position the leg 24 is 11! At the same time, it is pressed against the # surface by the spring 36.

Second position (Fig. 6) of the pulley 29 with respect to the hollow body #
i, # This is the position when the user is performing the biasing action using his or her foot.At this time, the VX button 26 is pressed with strong force. This action causes the block 29 to move downwardly and the other end 58 of the rod 30 to move out of the forest 39. Therefore, the other end 38t'i#I of the rod 30
Enter the right hand of 40.

When the user releases his/her foot, the block 29 is free to move upwards since there is no provision for vJfw at the other end 68.

Therefore, the block 29 is the upper wall 41 of the III line guide 32.
come into contact with

27g6tjj! Under the conditions shown in J and No. 711\1, the action of block 29 causes the master 24 to be separated from the floor #J. The small bin 42 is secured to the #cK bin 28 when operated within the slot 43 and guides the movement of the bin 28 and the boot stock 29.

A preferred embodiment of the chair, elevator and stopper of the invention is described in accordance with FIG. II, but this is not intended to limit the invention.

Within the scope of the idea of this invention, it is also possible to change the arrangement of each component in various ways.

However, the scope of R changes is limited to the scope of the claims! It goes without saying that this will happen.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of the hydraulic elevator of the present invention in the lever position when 9s is at the lowest end, ty,
2tgJs□J: m K S+41!11 i& (
DV/(-JIIN diagram at -□ and a schematic vertical cross-sectional view of a hydraulic elevator.Jl!3WJ is a chair rack with an armrest fixed in the hollow of the chair base and fixed to the floor surface of the running stopper. 4 is a schematic diagram of the stop position 111 of the stopper in FIG.
Figure 8 shows a schematic cross-section of the stopper shown in Figure 5, 1g and 3, taken along line B-B when viewed from the true direction of the arrow. 5 is a schematic cross-section #j of FIG. 1, and FIG. 7 is a schematic cross-section Ifi of FIG. 6. 1... Lifting js 2... Sleeve 4...
Base 5...Attachment 6...Threaded ring 7...Yel 8...Shaft
10...Hydraulic cylinder 12...Bonde 13
...Tank 14''-4'I included/(Lup 18-Piston 21...Plinth 23...Spoke 2
4...Legs 25...Floor surface 26...Deck V button 28-/Pin 29-/Plotter 30--
a Rad 31...Hollow body 62...Linear guide 35.36--Spring 37--End 6
8...Others Edge 39...Forest portion 40...Groove...Vertical axis Applicant: Jambinitro Zatsubayo San Patent attorney: Hidehiko Okada 3 Figure 26 1″3 ll Written amendment of voluntary procedure (Method) January 29, 1939, Commissioner of the Japan Patent Office

Claims (7)

[Claims] (1) $/-) It consists of a supporting sleeve, a hydraulic lifting model, a stopper, and a pump. It is connected to the FT-V Yaft, and the Mayuki bonder is connected to the hydraulic cylinder, and the hydraulic fluid is sealed through the pulp with a conduit and connected to the tank, and the hydraulic cylinder, pump, and pulp are attached. 1N of the shell with the tank slidable into the sleeve! One axis is arranged in one direction. The stopper is set when the chair or armrest is attached to the base of the chair with wheels or rollers. (2) The paper chair according to claim 1 or The armrest is a chair. (3) Claims 1 and 9 are characterized in that the tank is formed between the outer surface of the hydraulic V cylinder and the inner surface of the shell, and the tank is closed during the day.
The arm rest of Yuzu Maku mentioned in any one of the 2 items is a chair. (4) The arm rest of the chair is equipped with a rotatable lever on one of the chairs, and when the user operates one end of the lever, the free end of the lever acts on the piston of the bonde. Any one of the previous three items characterized by actuating a piston 1! Pea's chair-straddling armrest is a chair. (5) The stopper is fixed in the hollow of the chair base or spoke of the chair, and the stopper is fixed with the hollow body, the bottle, the small block, the spring, and the U-shaped rod. The bottle is arranged in the hollow of the hollow body and has a deck V on both sides.
, a button and - the block is attached to the bottle and the hollow body JIl! The inside of the straight straight guide formed between the face and the N face of the bottle is RT@), and the fi+ of the primary bottle is the groove parallel to the axis, the inclined round groove, and the forest-like part. , the spring uses a Illll block to always hold this block upwards, one stroke of the rod slides in the groove, and the other end is connected to a hollow body KrI.
IFfNv! A is fixed, and this rod is used to determine the upper and lower ends of the plotter and the plotter's stroke of 9 bins. Scope of request Item 1: The chair or armrest is a chair. (6) When the block has two extreme positions, one of which is placed at the top of the stroke by the biasing force of the spring, that is, when the legs are separated from the floor, the other is 5 of the claims, characterized in that the intermediate messenger obtained by the user pressing the DE VJL button, i.e. the end of the rod, is engaged with the forested part of the groove of the plotter. The chair straddle armrest shown is for a chair. (7) A spring is disposed inside the +111, and the spring is attached to the floor surface of the leg rest. The armrest of the armrest listed in any one of the 6 items is a chair.