JP2021195737A - Door-opening tool - Google Patents

Abstract

To provide a hands-free door-opening tool with a simple structure and low cost.SOLUTION: A door opening tool 1 in which a pressure screw 12 for pressing the face of an opening/closing door and a fixing nut 13 for fixing the pressure screw 12 are provided on a base including a hooked upright part 11d formed on one parallel side of a base face 11a, an installing upright part 11b formed on the other parallel side, and a pressure holding part 11c facing the installing surface side of the installing upright 11b and providing a spacing apart therefrom for holding the opening/closing door, and which is attached to the opening/closing door with the pressure screw 12 and is operated with a foot to open the door.SELECTED DRAWING: Figure 1

Description

The present invention relates to a door opening tool for opening a door without touching the door knob when opening and closing the door.

Conventionally, as shown in Patent Document 1, in order to solve the problem that it is difficult to operate when holding luggage with both hands and the problem that the door handle gets dirty when the hands are dirty, the door handle is used. A method has been proposed in which an auxiliary handle having a lever part is attached to the grip portion of the door handle, and the engagement between the latch of the door handle and the strike is released by depressing the pedal connected to the auxiliary handle with a foot.

Japanese Unexamined Patent Publication No. 10-54162 Further, in recent years, when an attempt is made to open and pass through a door while holding luggage in both hands, a door that can be opened simply by pulling the door handle 91 as shown in FIG. 11A is a foot. There has been proposed a door opening tool that opens the door toward you by the force of your foot while stepping on the foot pedal 92. Further, recently, as shown in FIG. 11B as a countermeasure against virus infection, a type in which the latch 96 and the strike 97 are engaged and locked by the recess 97a in order to prevent the door handle 95 from being directly touched. For doors, an auxiliary tool 98 has been proposed in which an auxiliary tool 98 is attached to a door handle 95, an arm is inserted into the Z portion, and the door handle is rotated toward the front side while rotating the door handle in the direction of the arrow (chi) in the figure. ..

However, although the door handle operating tool of Patent Document 1 can disengage the latch, the door with a door closer must be opened against the closing force, and there is a problem that the door cannot be easily opened. there were. Further, the mounting plate (16) that supports the pedal body (11) is fixed to the wood screw insertion hole (20) drilled in the door (21) with the wood screw (19), and it is necessary to process the door. In addition, metal doors are difficult to process and cannot be easily installed later.

Further, the door opening tool shown in FIG. 11A has a problem that the lock cannot be released and cannot be opened in the type of door in which the latch and the strike are engaged and locked. Further, as shown in FIG. 11A, when the foot pedal 92 is attached to the door, it must be attached using the screw 93, and the door needs to be processed for attachment, especially when the door is made of metal. There was also a problem that it was difficult to process and could not be easily attached later.

On the other hand, the auxiliary tool 98 shown in FIG. 11B can be pulled toward the front while rotating the door handle 95 by inserting the arm, but the auxiliary tool 98 can be used up to the arm such as a large cardboard box to carry the luggage. In some cases, there was a problem that the arm could not be inserted and the door could not be opened.

An object of the present invention is to solve the above-mentioned problems and to provide a hands-free door opening tool that can be easily attached later without having to process the opening / closing door with a simple structure.

In the present invention, the means 1 for achieving the above object is a base base surface having facing parallel sides, a hooking upright portion formed on one parallel side of the base base surface, and the other parallel to the base base surface. A base having a mounting upright portion formed on the side, a base provided with a pressing and holding portion facing the mounting surface side of the mounting upright portion and having an opening / closing door sandwiched between them.
A pressing means provided on the pressing holding portion or the mounting upright portion to press the open / close door, and
It is equipped with.

According to the means 1 of the present invention, it is not necessary to process the door opening tool having a simple structure into the opening / closing door, and the door opening tool can be inserted from the side end face side of the opening / closing door and easily attached to a free position later by foot. It is possible to realize a convenient hands-free door opening tool that can open the opening / closing door.

As a result of the above, according to the present invention, it is possible to provide a hands-free door opening tool that can be easily attached later without having to process the opening / closing door with a simple structure.
(Other means to solve the problem)
The means 2 of the present invention further includes a pressing plate and a friction member at the tip of the pressing means that sandwiches the open / close door. According to the means 2 of the present invention, the floor abuts on the floor surface by strongly pressing the opening / closing door with the pressing plate via the friction member and holding the door opening tool to the opening / closing door in a state of floating from the floor surface. There is an advantage that the protective member is not required, the floor is not damaged, and the force for opening the door is reduced.

The means 3 of the present invention is that a plurality of mounting upright portions, pressing holding portions, and hooking upright portions are provided with both sides of the opening / closing door sandwiched between them, and are arranged so as to face each other. According to the means 3 of the present invention, in the case of an open / close door without a door closer, it can be easily closed with a foot after passing through the open / close door once opened, and in particular, it has a large luggage to be held by using it up to the arm. In such a case, a very convenient hands-free door opening tool can be realized.

The means 4 of the present invention is to further provide a stopper on the mounting upright portion so as to be movable.
According to the means 4 of the present invention, in the case of an open / close door having a lock structure by a latch and a strike, the open / close door is brought into contact with a stopper to prevent the lock from working, and the open / close door is usually not operated without operating the door handle. There is an advantage that the door can be opened. In addition, when a lock is required, the stopper is integrated with the door opening tool and can be easily returned to the original position, which has the advantage of improving convenience without losing the stopper.

It is an overall perspective view of the door opening tool of the 1st aspect of this invention. It is a perspective view of the state in which the door opening tool of the present invention is attached to an opening / closing door. FIG. 2 is a cross-sectional view taken along the line XX in FIG. It is an exploded perspective view of the method of attaching the door opening tool of the present invention to an opening / closing door. It is a perspective view from the bottom surface direction of the door opening tool of the 1st modification of 1st aspect of this invention. It is a perspective view of the door opening tool of the 2nd modification of the 1st aspect of this invention. It is an exploded perspective view of the door opening tool of the 3rd modification of the 1st aspect of this invention. It is a perspective view of the door opening tool of the 2nd aspect of this invention. It is a perspective view of the door opening tool of the 3rd aspect of this invention. It is a perspective view which shows the operation at the time of using the door opening tool of the 3rd aspect of this invention. It is a figure which shows the conventional door opening tool. It is sectional drawing explaining the mounting modification example of 1st aspect. It is a perspective view of the door opening tool of the 4th modification of the 1st aspect of this invention.

Hereinafter, the first aspect of the embodiment for carrying out the present invention will be described with reference to FIGS. 1 to 3. In FIG. 1, the base 11 of a sheet metal has a substantially U-shape between a mounting upright portion 11b and a hooking upright portion 11d, and a pressing holding portion 11c that stands up upward from the base base surface 11a is provided between them. A screw portion 11ca (see FIG. 3) is provided in the middle of the pressing holding portion 11c.

As shown in FIGS. 1 and 3, the door opening tool 1 is composed of the base 11, the pressing screw 12, the fixing nut 13, and the floor protection member 14 that protects the floor surface 80 (see FIG. 3) from being scratched. It is configured. Assembling is a structure in which a pressing screw 12 is arranged toward the mounting upright portion 11b and further tightened with a fixing nut 13 so that the pressing screw 12 does not move. The method of fixing the pressing screw 12 will be described later as a method of attaching the pressing screw 12 to the opening / closing door. Further, the floor protection member 14 is fixed to the base 11 by a pin 15. The floor protection member 14 is a block made of plastic such as polyacetal resin or polyamide resin, and a plurality of grooves 14a are provided on one side, and one of the grooves 14a is inserted into the end portion 11g of the base 11 from above. The bottom surface 14b is fixed by the pin 15 so as to penetrate the base 11 and protrude from the base bottom surface 11h.

Further, as shown in FIG. 1, the base 11 is made of rubber or a thermoplastic elastomer in order to prevent the foot 81 (see FIG. 3) from slipping when the opening / closing door is opened at the upper end of the upright portion 11d. A non-slip member 16 is provided. The non-slip member 16 also has a role of protecting the sharp edge of the sheet metal thin plate. Although the base 11 is described as a sheet metal base, if the parts of the mounting upright portion 11b, the hooking upright portion 11d, and the pressing and holding portion 11c can be formed instead of the plate shape, the block-shaped form made of aluminum or plastic resin can be formed. Further, the pressing screws 12 may be provided at a plurality of places.

2 and 3 show a state in which the door opening tool 1 is attached to the opening / closing door 20. The mounting surface 20b of the opening / closing door 20 is pressed against the mounting surface 11f of the mounting standing portion 11b, the pressing screw 12 is screwed into the screw portion 11ca provided in the pressing holding portion 11c, and the tip portion 12a is the pressed surface of the opening / closing door 20. The door opening tool 1 is pressed against the 20a and is attached to the opening / closing door 20. Further, the pressing screw 12 is tightened and locked to the pressing holding portion 11c with a fixing nut 13 so as not to loosen.

A method of attaching the door opening tool 1 to the opening / closing door 20 will be described with reference to FIGS. 2 to 4. First, the door opening tool 1 is inserted by sandwiching the opening / closing door 20 between the mounting upright portion 11b and the pressing holding portion 11c from the direction of the arrow (a) in FIG. With the mounting surface 20b of the opening / closing door 20 pressed against the mounting surface 11f and the side end surface 11e and the side end surface 20c are on the same surface, the pressing screw 12 is rotated to bring the tip portion 12a into contact with the pressed surface 20a and lightly hold it. Tighten like.

Next, as shown in FIG. 3, the mounting height of the door opening tool 1 is adjusted by moving it up and down so that the bottom surface 14b of the floor protection member 14 is substantially in contact with the floor surface 80. In this state, retighten the pressing screw 12, press the tip portion 12a strongly against the pressed surface 20a, fix the pressing screw 12 to the pressing holding portion 11c with the fixing nut 13 so that the pressing screw 12 does not loosen, and open and close the door opening tool 1. Attach to 20.

If the space between the floor surface 80 and the bottom surface 14b of the floor protection member 14 is wide open, the groove 14a of the floor protection member 14 and the engaging portion of the base 11 are displaced to different positions to engage with each other, and the door is opened. The height position of the door tool 1 may be adjusted and fixed to the opening / closing door 20. Further, it has been described that the door opening tool 1 is fixed to the opening / closing door 20 by strongly pressing it against the pressed surface 20a from the pressing holding portion 11c side with the pressing screw 12, but the screw is attached to the mounting upright portion 11b in FIG. A hole 11k may be provided, and as shown in FIG. 12, the pressing holding portion 11c and the pressed surface 20a may be brought into contact with each other, the pressing screw 12 may be strongly pressed against the mounting surface 20b, and the fixing nut 13 may be fixed and mounted.

The operation of opening the opening / closing door 20 will be described. When opening the opening / closing door 20, the foot 81 is placed on the upper end of the hooking upright portion 11d, and the bottom surface 14b of the floor protection member 14 is pressed against the floor surface 80 while rotating in the direction of the arrow (b) in FIG. When the door is moved in the direction by the foot 81, the opening / closing door 20 moves and opens together with the door opening tool 1 by the mounting upright portion 11b that comes into contact with the mounting surface 20b. At this time, the bottom surface 14b is in contact with the floor surface 80, the door opening tool 1 does not come off, and the floor protection member 14 slides on the floor surface 80, so that the floor surface 80 is less likely to be damaged.

FIG. 5 shows a door opening tool 2 which is a first modification of the first aspect of the present invention. In FIG. 1, the floor protection member 14 is described as sliding and sliding with a plastic block, but in this modified example, a roller is used instead of the floor protection member 14 to roll and slide. In the door opening tool 2, the guide roller 25 is supported at both ends of the shaft pin 26 through which the guide roller 25 penetrates in the vicinity of the hooked upright portion 21d of the base 21. The shaft pin 26 is pressed against the base bottom surface 21h by the mounting plate 27, the mounting plate 27 is fixed to the base bottom surface 21h with a mounting screw 28, and the guide roller 25 is rotatably provided. In this way, the opening / closing door 20 can be opened more smoothly by the rolling contact between the floor surface 80 and the guide roller 25, and the floor surface 80 is not damaged. By changing the diameter of the guide roller 25, the height of the door opening tool 2 can also be adjusted. Further, a spherical roller may be attached to the floor protection member 14, and the tip portion thereof may be projected from the bottom surface 14b to serve as a guide roller.

FIG. 6 shows a door opening tool 3 which is a second modification of the first aspect of the present invention. The feature of this modification is that the base 30 is composed of a sheet metal mounting plate 31 and a block-shaped pressing and holding block 32. The sheet metal mounting plate 31 has a mounting upright portion 31b and a hooking upright portion 31d forming a substantially U-shape, and a pressing holding block 32 is placed on the base surface 31a surface between the mounting upright portions 31b and a mounting screw (not shown from the back surface of the mounting plate 31). It is fixed at. The pressing and holding block 32 is provided with two screw holes 32a that penetrate the mounting surface 31f so as to face each other in the vertical direction.

In the door opening tool 3, the pressing screws 12A and 12B are screwed into the screw holes 32a, and the tip portions 12Aa and 12Ba are rubbed against the metal or plastic pressing plate 33 and are placed on the opposite surface of the pressing plate 33. Is provided with a soft, high coefficient of friction friction member 34, such as a plate-shaped or sheet-shaped rubber or thermoplastic elastomer. When the door opening tool 3 is attached to the opening / closing door 20, the opening / closing door 20 is sandwiched between the mounting surface 31f and the friction member 34, and the friction member 34 is pressed against the pressed surface 20a with the pressing screws 12A and 12B. Tighten it strongly, and fix it to the pressing and holding block 32 with the fixing nuts 13A and 13B, respectively. The friction member may be changed in size and provided on the mounting surface 31f, or it is desirable that the friction member be provided in pairs on both sides of the pressing plate 33 and the mounting surface 31f. (It will be illustrated and described in the fourth modification described later.) Although the pressing screw is described by two in this description, one may be provided in the central portion and tightened as in the so-called vise structure.

FIG. 7 shows a door opening tool 4, which is a third modification of the first aspect of the present invention. The feature of this modification is that the base 40 is composed of a sheet metal mounting plate 41 and a pressing and holding block 42, and the hooking and standing portion 42d is formed not by the mounting plate 41 but by a part of the pressing and holding block 42. The mounting plate 41 has a substantially U-shape with the mounting upright portion 41b and the standing wall 41q, the abutting surface 41r of the mounting plate 41 is made to hit the abutting surface 42b of the pressing holding block 42, and the mounting surface 41s is used as the mounting surface 42c. It is fixed with the mounting screw 45.

In the door opening tool 4, the pressing screws 12A and 12B are screwed into the screw holes 42a of the pressing holding block 42, and the tip portions 12Aa and 12Ba penetrate the vertical wall 41q and press the pressing plate 33. The fixing nuts 13A and 13B are located between the standing wall 41q and the pressing plate 33, respectively, and the pressing screws 12A and 12B are fixed by sandwiching the standing wall 41q and tightening them to the pressing holding block 42.

FIG. 13 shows a door opening tool 7 which is a fourth modification of the first aspect of the present invention. A pressing and holding block 72 that can move in the vertical direction of the mounting surface 71f of the mounting upright portion 71b is fixed to the base base surface 71a of the base 71 by a mounting screw 75, and the pressing and holding block 72 is centered on the fulcrum 72e. A rotating eccentric cam 73 is provided. The eccentric cam 73 is a cam whose position of the cam surface portion 73a changes by an eccentric amount W when rotated by 90 °, and a lock lever portion 73b is integrally provided at one end.

Further, as in the second modification, the pressing plate 33 made of metal or plastic and the opposite surface of the pressing plate 33 are soft and have a high coefficient of friction, such as rubber or thermoplastic elastomer, so as to match the cam surface portion 73a. A friction member 34 is provided. On the other hand, the mounting surface 71f of the mounting upright portion 71b is similarly provided with a soft friction member 74 such as a plate-shaped or sheet-shaped rubber or thermoplastic elastomer having a high friction coefficient, and both sides of the opening / closing door 20 are provided with the friction member 34. It is located between the friction member 74 and the friction member 74 and is sandwiched.

To attach the door opening tool 7 to the opening / closing door 20, first, the pressing holding block 72 is fixed to the base 71 with the mounting screw 75 according to the thickness of the opening / closing door 20. The door opening tool 7 is inserted from the side end surface 20c of the opening / closing door 20 so that both sides of the opening / closing door 20 are located between the friction member 34 and the friction member 74. When rotated 90 ° in the direction (c), the pressing plate 33 is pushed out by the amount of eccentricity W in the direction of the straight arrow (d) in FIG. 13, and both sides of the opening / closing door 20 are strongly sandwiched between the pressing plate 33 and the mounting upright portion 71b. become. The locked lever portion 73b after mounting is fixed by a screw fastening or a detent method (not shown) and does not rotate. When the lock lever portion 73b is rotated in the direction opposite to the rotation arrow (c), a gap is formed between the opening / closing door 20 and the friction member 34, so that the lock lever portion 73b can be easily removed.

The advantage of the second modification and the third modification of the first aspect of the present invention is that the pressing and holding blocks 32 and 42 are block-shaped, so that the effective length of the screw can be increased. As a result, lead screws and bolt screws having a large nominal diameter can be used for the pressing screws 12A and 12B, and the door opening tools 3 and 4 can be firmly fixed by pressing the pressed surface 20a of the opening / closing door 20 with a large force. This has the advantage that the door opening tools 3 and 4 are attached so as to float without contacting the floor surface 80, and the floor protection member 14 becomes unnecessary. Further, the pressed surface 20a and the mounting surface 20b of the opening / closing door 20 are not scratched, and since the floor surface 80 is not rubbed, no sliding noise is generated and the floor surface 80 is not scratched at all. It also has the effect of reducing the door opening force. Further, although it is sufficient to press only with the pressing plate 33, the use of the friction member 34 has an advantage that the holding force is further increased and the opening / closing door 20 is not further scratched. Further, in the fourth modification, by using the eccentric cam 73 instead of using the pressing screws 12A and 12B, it is not necessary to finely adjust the pressing of the screws, and it can be easily attached and detached only by operating the lock lever portion 73b. The convenience is further improved.

As described above, as described in the first embodiment of the present invention and various modifications thereof, the door opening tools 1 and 2, 3, 4, and 7 are inserted from the side end surface 20c of the opening / closing door 20 and inserted at an arbitrary position and at an arbitrary position. Since it can be easily attached to the height by the pressing means, it is a great advantage that the opening / closing door 20 does not need to be processed for attachment.

FIG. 8 shows a door opening tool 5 according to a second aspect of the present invention, in which hooked upright portions are provided on both the inner and outer sides of the opening / closing door 20. The base 51 has a mounting upright portion 51b, a pressing and holding portion 51c, a hooking and standing portion 51d, and a second mounting and standing portion 51m having a substantially central portion that is rotationally symmetric, a second pressing and holding portion 51n, and a second. It is integrally composed of the hooking upright portion 51p, and is connected by the base base surface 51a. The mounting upright portion 51b and the second pressing and holding portion 51n are on the same surface, and the second mounting and standing portion 51m and the pressing and holding portion 51c are also on the same surface.

For mounting on the opening / closing door 20, the mounting surface 20b is pressed against the mounting standing portion 51b and the second pressing holding portion 51n, and the pressed surface 20a is pressed from the pressing holding portion 51c and the second mounting standing portion 51m side with the pressing screw 12. Is attached by pressing, and the hook upright portion 51d and the second hook upright portion 51p are arranged with respect to both sides of the inside and outside of the opening / closing door 20. That is, if the door is to be opened on the side of the hooking upright portion 51d, the opening / closing door 20 is opened by pulling the hooking upright portion 51d in the direction of the arrow (e) with the foot, and after passing, the second hooking upright portion is again with the foot. The opening / closing door 20 is closed by pulling 51p in the direction of the arrow (f). This means that when the floor surface is substantially the same height across the inside and outside of the opening / closing door 20, the door can be opened / closed very easily with a foot without a door closer.

However, in the above-mentioned door opening tools 1, 2, 3, 4, 5, and 7, as shown in FIG. 11B, the lock type in which the latch 96 of the door on the opening / closing side engages with the strike 97 on the fixed side. In the case of a door, it cannot be opened only by the above method. Therefore, when the foot 81 is moved in the direction of the arrow (b) in FIG. 3 to open the open / close door 20, it is necessary to disengage the latch 96 and the strike 97 in advance. As a countermeasure, it is usually sufficient to take measures to prevent the latch 96 and the strike 97 from engaging with each other. For example, it is conceivable to provide a removable protective plate that closes the recess of the strike or a stopper that stops in front of the engaging position. However, the protective plate and the stopper need to be attached to a place different from the door opening tool 1 of the present invention, and there is an inconvenience that the lock must be removed and stored when the lock is required.

The door opening tool 6 of the third aspect of the present invention is shown in FIGS. 9 and 10. The difference from the first aspect is that the door opening tool 6 is provided with a stopper 62 with respect to the first aspect. A stopper 62 is slidably mounted on the outer surface of the mounting upright portion 61b of the base 61 in the left-right direction (in the direction of the arrow (g) in FIG. 9). The stopper 62 has oval holes 62a at two positions, and is loosely fitted with the guide pins 63A and 63B attached to the mounting upright portion 61b, and can be moved to the left and right by operating the operation lever portion 62b.

In the case of a door without a lock structure by a latch and a strike, the door can be opened by foot with the door opening tool 1 or 2, 3, 4, 5, 7 of the first aspect of the present invention, but the lock can be used. In the case of a door with a structure, it is necessary to operate the door handle to unlock it. Generally, in the case of a single door, the opening / closing door 20 is provided with a latch, and the opening / closing door 20 has a latch and a strike (not shown) when the stopper portion 20d or the like comes into contact with the fixed door 77 having a strike or the pillar surface side. It is locked by the lock structure. In the locked state, the side end surface 20c of the open / close door 20 and the side end surface 77c of the fixed door 77 are in opposite positions.

In the door opening tool 6 of the third aspect of the present invention, when the door handle is normally operated to unlock and use the door opening tool 6, the door opening tool 6 may be used in the state shown in FIG. When the door is used in the state of being released, the operation lever portion 62b of the stopper 62 is operated to move it in the direction of the arrow (g) in FIG. 9 to bring it to the state shown in FIG. When the opening / closing door 20 is closed in this state, the surface 62c of the stopper 62 interferes with the surface 77b of the fixed door 77 and does not close, and the gap Y is opened in the state of FIG. 10 so that the door cannot be locked. If the door opening tool 6 is pulled with the foot in this state, the opening / closing door 20 can be opened without operating the door handle. It can be used even when the door handle is a round doorknob.

For a security door with a night alarm function, the stopper 62 may be returned to the state shown in FIG. 9 to restore the lock function again at the final exit, and the door may be locked by a locking means (not shown), and is integrated with the door opening tool 6. By providing a simple stopper function, there is an advantage that the door can be opened normally without operating the door handle. Further, the stopper 62 is integrated with the door opening tool 6, which has an advantage that the stopper can be easily operated without being lost. Although the stopper 62 has been described by moving in the horizontal direction, it may be projected from the surface of the mounting upright portion 61b by rotating around an arbitrary axis.

Generally, when the opening / closing door 20 is closed, it is automatically closed by a door closer (not shown), but in the case of a door without a door closer, in addition to the second aspect, the mounting surface 20b on the opposite side of the opening / closing door 20 is used. The door opening tool 1 or 2, 3, 4, 7 may be attached or used. Further, in the door opening tool 5, a stopper 62 may be provided on the mounting upright portion 51b or the second mounting upright portion 51m to add an unlocking function.

The present invention has been described above with reference to the first aspect, the second aspect, and the third aspect of the present invention. Even in this case, it is possible to provide a hands-free door opening tool that can be easily opened, does not require processing of the opening / closing door, and can be easily attached later.

Although the embodiment of the present invention and the state at the time of use have been described in detail, the embodiment is not limited to this, and various other configurations can be taken without departing from the gist of the present invention. Of course.

1, 2, 3, 4, 5, 6, 7: Door opening tool 11, 21, 30, 40, 51, 61, 71: Base
11a, 51a, 71a: Base base surface 11b, 51b, 61b, 71b: Mounting standing portion 11c, 51c: Pressing holding portion 11ca: Screw portion 11d, 21d, 51d, 71d: Hooking standing portion 11e: Side end surface 11f, 71f : Mounting surface 11g: Ends 11h, 21h: Base bottom surface 11k: Screw holes 51m: Second mounting upright portion 51n: Second pressing and holding portion 51p: Second hooking upright portions 12, 12A, 12B: Pressing screws 12a, 12Aa, 12Ba: Tip 13, 13A, 13B: Fixing nut 14: Floor protection member 14a: Groove 14b: Bottom surface 15: Pin 16: Anti-slip member 20: Open / close door 20a: Pressed surface 20b: Mounting surface 20c: Side end surface 20d: Stopper part 25: Guide roller 26: Shaft pin 27: Mounting plate 28: Mounting screws 31, 41: Mounting plate 31a: Base surface 31b, 41b: Mounting standing part 31d: Hooking upright part 31f: Mounting surface 41q : Standing wall 41r: Abutment surface 41s: Mounting surfaces 32, 42, 72: Pressing and holding blocks 32a, 42a: Screw holes 42b: Abutment surface 42c: Mounting surface 42d: Hooking upright portion 72e: Supporting point 33: Pressing plate 34, 74: Friction member 45, 75: Mounting screw 62: Stopper 62a: Oval hole 62b: Operation lever part 62c: Surface 63A, 63B: Guide pin 73: Eccentric cam 73a: Cam surface part 73b: Lock lever part 77: Fixed door 77b: Surface 77c: Side end surface 80: Floor surface 81: Foot 91, 95: Door handle 92: Foot pedal 93: Screw 96: Latch 97: Strike 97a: Recess 98: Auxiliary tool

Claims (4)

A base base surface having parallel sides facing each other, a hooking upright portion formed on one parallel side of the base base surface, a mounting upright portion formed on the other parallel side of the base base surface, and an attachment of the mounting upright portion. A base with a pressing and holding part facing the surface side and provided with a space for holding the open / close door, and a base.
A pressing means provided on the pressing holding portion or the mounting upright portion to press the opening / closing door, and
A door opening tool equipped with. ――― Means 2
The door opening tool according to claim 1, wherein a pressing plate and a friction member are provided at the tip of the pressing means that sandwiches the opening / closing door. ――― Means 3
The door opening tool according to claim 1 or 2, wherein a plurality of the mounting upright portion, the pressing and holding portion, and the hooking upright portion are provided so as to face each other by sandwiching both sides of the opening / closing door. .. ――― Means 4
The door opening tool according to any one of claims 1 to 3, wherein a stopper member is further provided on the mounting upright portion so as to be movable.

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