JP6934211B1 - Bearing device for building door handles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bearing device for a door handle for a building, which is rich in workability, operability and design. SOLUTION: A mounting seat board 21 fixed to a door D, a movable side track board 22 fitted to a central portion of the seat board so as to be integrally rotated with handles Hf and Hr, and a phase with the seat board. In order to keep the movable side track board in a retaining state, the fixed side track board 23 assembled and integrated with the seat board and the track surfaces of both track boards are inserted and set between each other facing each other. A pair of thrust bearings Bf and Br including a ball retainer 24 bearing a pair of handles so that the handle shafts 10 attached to both ends can be rotated to the door D. [Selection diagram] Fig. 2

Description

The present invention relates to a bearing device that is effective in preventing rattling of a door handle for a building and achieving a cosmetic effect (design).

When attaching a lever-type or knob-type opening / closing handle to a pivot hinge type door (rotating door) of a building, the handle is strongly pushed against the round seat fixed to the door to connect with the round seat. If the fitting tolerance is reduced, the rotation operation of the handle becomes heavier, but if the push into the round seat is weakened so that the rotation operation can be performed lightly, the handle rattles or makes an abnormal noise. It is extremely difficult to adjust and set the above tolerances to the minimum.

In order to solve such a problem, a building door handle device in which a radial bearing is inserted and installed between the handle and its round seat facing each other and the handle shaft is rotatably supported by the radial bearing is described in Patent Document. It is disclosed in 1.

Japanese Patent No. 4288616

In the above-mentioned pivot hinge type door (rotating door) of this type, in order to allow the latch to appear and disappear from the lock surface of the wooden mouth, the door opening / closing handle is rotated and pushed or pushed while holding the handle almost at the same time. It is customary to open and close the door by pulling it, but the operating force applied along the axial direction of the handle shaft is received by the radial bearing (4) disclosed in Patent Document 1 (countermeasure). It is impossible to do).

Furthermore, in the configuration of the door handle device described in Patent Document 1, the handle seat (1) does not support the entire width of the outer ring (4a) in the radial bearing (4), and the handle in the bearing (4). Speaking of the corners of the inner ring (4b) that supports the shaft portion (3c) of the main body (3), only the corners of the outer ring (4a) that are diagonally supported are locally supported.

As a result, the load acting along the axial direction of the handle shaft (spindle) (2) (particularly the force that strongly pushes the handle body (3)) cannot be received (countered) by the radial bearing (4). Together with this, there is a risk of swinging of the handle shaft (spindle) (2) and glare of the pair of handle bodies (3), and the handle body (3) always rotates smoothly and stably. I can't let you.

Further, in the configuration of the door handle device, a certain gap must be surely secured between the front and rear of the handle body (3) and the handle seat (1), so that the outer ring (4a) of the radial bearing (4) is used. It will be unsightly exposed, and dust may invade and adhere to it.

In that case, even if the cover portion (3f) of the outer ring (4a) is provided on the handle body (3) side, the cover portion (3f) and the tip portion of the handle seat (1) are still between the front and rear. Since it is still necessary to secure a certain gap, it is not possible to obtain a graceful appearance makeup effect (design) and a dustproof effect.

In this regard, the thicker or wider the handle seat (1) is, the more the gap is exposed at a position that is easy to see from the outside world, so that the appearance cosmetic effect (design) is further reduced.

An object of the present invention is to improve such a problem, and in order to achieve the object, a pair of handles for opening and closing the door are attached to both ends of a certain length penetrating the door in claim 1. Handle shaft,

The mounting seat that is fixed to the door, the movable track board that is inserted and fitted into the center of the mounting seat so that it can rotate integrally with the handle, and the mounting seat that is movable together with the mounting seat. In order to keep the side track discs in a retaining state, the fixed side track discs assembled and integrated with the mounting seats and the raceway surfaces in both race discs that are orthogonal to the axis of the handle shaft face each other. By a pair of thrust bearings consisting of multiple balls that are tumblably inserted and set in between.

It is characterized in that it is bearing so that it can rotate to the door.

Further, in claim 2, a required number of large-diameter flanges are continuously and integrally projected from the core cylinder of the movable side track board forming each thrust bearing.

Insert and set the scattered steel ball retainers inside the ball retainer receiving concave groove that opens inward, which is cut out at the overhanging base end of the flange, and closes the fixed side track board from the inside. While assembling

Similarly, the inner peripheral surface of the boss receiving cylinder, which extends continuously outward from the middle of the flange overhang, is shaped into an oval shape that matches the boss of the door opening / closing handle.

It is characterized in that the boss of the handle is inserted and fitted into the elliptical inside of the boss receiving cylinder in the movable track board so that the boss of the handle can rotate integrally.

In claim 3, a pair of arc-shaped engaging convex pieces parallel to the elliptical arc surface formed on the inner peripheral surface of each thrust bearing is raised from the outer peripheral surface of the boss receiving cylinder on the movable side track board. ,

A flange receiving groove for fitting with the large-diameter overhanging flange of the track board and an insertion port for a boss receiving cylinder having a diameter smaller than the flange are formed at the center of the mounting seat, respectively.

A pair of corresponding rotation angle regulating concave grooves for accepting the engaging convex pieces on the raceway board side are formed on the peripheral edge of the opening of the insertion port for the boss receiving cylinder in the mounting seat from the arc length of the engaging convex pieces. Notched in an arc shape with a long arc length,

The door opening / closing handle in which the boss is inserted and fitted into the boss receiving cylinder of the track board is regulated based on the length difference between the arc length of the engaging convex piece and the arc length of the rotation angle regulating concave groove. It is characterized in that it is determined to rotate only in a certain angle range.

The fourth aspect of the present invention is characterized in that a certain angle range in which the door opening / closing handle can rotate is set to 17 degrees in the clockwise direction and 17 degrees in the counterclockwise direction.

In claim 5, the mounting seat of each thrust bearing is formed as a disk having a substantially U-shaped cross section that opens inward, and the fixed-side track disk is formed as a small-diameter disk that is fitted to the mounting seat from the inside in a closed state.

A plurality of locking claws are projected inward as an overall radial symmetry distribution type from a large-diameter circular peripheral edge covering the fixed side track board in the mounting seat.

A plurality of claw receiving notches are formed correspondingly on the circular peripheral edge of the track board.

The mounting claw on the mounting seat side is inserted into the claw receiving notch on the track board side to lock the mounting claw, whereby the mounting seat board and the fixed side track board are assembled and integrated.

In claim 6, a pair of long insertion leg cylinders in parallel are continuously and integrally projected from the mounting seat in one of the thrust bearings toward the other thrust bearing.

In addition to correspondingly projecting the short receiving leg of the insertion leg from the mounting seat of the other thrust bearing toward the thrust bearing of the other.

The pair of thrust bearings are connected and integrated by passing the insertion leg tube through the door, inserting and fitting it into the receiving leg tube, and screwing a fixing screw from the receiving leg tube into the inside of the insertion leg tube. It is characterized by having done it.

A seventh aspect of the present invention is characterized in that the movable side track board, the fixed side track board, and the ball retainer other than the mounting seats constituting each thrust bearing are the same in both thrust bearings.

According to claim 8, of the mounting seat plate, the movable side track board, the fixed side track board, and the ball retainer constituting each thrust bearing, all the other parts except the ball are the same polyacetal, FRP, or other high-strength synthetic resin. It is characterized by being created from.

According to the above configuration of claim 1, even if the opening / closing handle is strongly pushed during the installation work on the door, or the handle is repeatedly pushed during the opening / closing operation of the door, the thrust bearing the handle at that time is supported. Since the ball of the bearing makes point contact with the raceway surface forming a plane orthogonal to the axis of the handle shaft on the movable side race disc and the fixed side raceboard and rolls on the raceway surfaces facing each other, the axial direction of the handle shaft Combined with the ability to receive the pushing force (load) applied along the above (counteracting the pushing force), the handle always rotates stably and smoothly, causing swinging movement, rattling, rattling noise, and bearings. There is no risk of indentation. In that sense, it has excellent workability, operability, dimensional stability, and durability.

Further, if the configuration of claim 2 is adopted, a ball retainer in which a plurality of steel balls are scatteredly distributed is provided with a large-diameter overhanging flange of the movable side track board and a ball of the movable side track board by the fixed side track board. In addition to being able to be securely confined in the retainer receiving concave peripheral groove without fear of falling off, both can be fitted by inserting the elliptical boss of the door opening / closing handle into the corresponding elliptical boss receiving cylinder of the movable side track board. There is also an effect that can be reliably and stably and integrally rotated.

In that case, if the configuration of claim 3 is adopted, an arc-shaped engaging convex piece having a short arc length that rises from the outer peripheral surface of the boss receiving cylinder on the movable side track board is used for the boss receiving cylinder on the mounting seat plate. A fixed angle range regulated based on the length difference of the arc length by inserting and engaging with the arc-shaped rotation angle regulating concave groove having a long arc length formed by notching at the peripheral edge of the opening of the insertion port. Only the door opening / closing handle can be set so as not to rotate, and the waste of unnecessarily large (wide angle) rotation of the handle can be eliminated.

If the configuration of claim 4 is adopted for the constant rotation angle range, the handle can be rotated clockwise (clockwise) and counterclockwise (counterclockwise) by only 17 degrees. Since the door can be opened and closed, the operability is further improved and it is also convenient.

If the configuration of claim 5 is adopted, a plurality of locks protruding inward from the large-diameter circular peripheral edge of the mounting seat board in order to keep the movable side track board in which the ball retainer is inserted and set in a retaining state. By inserting and locking the claws into the claw receiving notches formed corresponding to the small-diameter circular peripheral edge of the fixed-side track board, the mounting seat board and the fixed-side track board can be assembled and fixed. Since the fixed side track board is covered in a surrounding state by a mounting seat board having a larger diameter than this, it is excellent in the assembly workability of the thrust bearing and the appearance cosmetic effect (design).

Further, if the configuration of claim 6 is adopted, a long insertion leg cylinder protruding from one of the mounting seats of both thrust bearings is passed through the door from the inside or outside of the door, and the other remains. The mounting seats of both thrust bearings are connected to the door by inserting and fitting into the short receiving leg cylinder that projects in the opposite direction from the mounting seat of the bearing, and then screwing the fixing screw from the receiving leg into the inside of the insertion leg. Since it is connected and integrated in the sandwiched state, the installation work on the door can be done quickly and conveniently, and the work state is stable.

Further, if the configuration of claim 7 is adopted, the thrust bearing can be easily assembled and the maximum mass production effect can be obtained.

If the configuration of claim 8 is adopted, there is an effect that a thrust bearing having abundant support strength and light weight of the handle for opening and closing the door can be obtained.

It is an external slope view which shows the construction state of the door handle for a building which concerns on embodiment of this invention. It is a vertical cross-sectional view which shows by omitting the door of FIG. It is also a cross-sectional view. It is sectional drawing which shows by extracting the front-end side handle of FIG. Similarly, it is sectional drawing which shows by extracting the handle on the retrofit side. It is a front view which shows by cutting out a part of FIG. It is a front view which shows the thrust bearing of FIG. 2 extracted. 8-8 is a cross-sectional view taken along the line 8-8 of FIG. 9-9 is a cross-sectional view taken along the line 9-9 of FIG. It is a cross-sectional view of FIG. 11-11 is a cross-sectional view taken along the line 11-11 of FIG. It is an enlarged view which shows by extracting a part of FIG. It is a front view of the movable side track board which constitutes each thrust bearing. It is a rear view of FIG. It is a cross-sectional view taken along the line 15-15 of FIG. It is an enlarged view which shows by extracting a part of FIG. It is a front view of the mounting seat board which constitutes one of the thrust bearings. It is a rear view of FIG. 19-19 is a cross-sectional view taken along the line 19-19 of FIG. 20-20 is a cross-sectional view taken along the line 20-20 of FIG. It is a front view of the mounting seat board which constitutes the other thrust bearing which remains. FIG. 21 is a rear view of FIG. FIG. 21 is a cross-sectional view taken along the line 23-23 of FIG. FIG. 22 is a cross-sectional view taken along the line 24-24 of FIG. It is a front view which shows the rotation angle range which is regulated to be constant of a handle. It is a front view of the fixed side track board which constitutes each thrust bearing. FIG. 26 is a rear view of FIG. 26. FIG. 27 is a cross-sectional view taken along the line 28-28 of FIG. 27. It is an exploded slope view which shows the assembly order of one thrust bearing. Similarly, it is an exploded slope view seen from the reverse direction of FIG. 29. It is an exploded slope view which shows the assembly order of the other thrust bearing. Similarly, it is an exploded slope view seen from the reverse direction of FIG. 31. It is a slope view which shows the assembly construction order of both thrust bearings with respect to a door. Similarly, it is a slope view seen from the opposite direction of FIG. 33. It is a slope view which shows the installation order of both handles with respect to the door (not shown) in which both thrust bearings are fixedly installed. It is a slope view which shows the construction order following FIG. 35. It is a slope view which shows the installation construction completion state of both handles.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 1 to 3 show a construction state of a building door handle according to the embodiment, and FIGS. 4 to 28 are views of various parts constituting the door handle.

As is clear from FIGS. 1 to 3, the building door handle has a handle shaft (10) having a fixed length (for example, 96 mm) (L) that penetrates and crosses the pivot hinge type door (rotating door) (D). A pair of door opening / closing handles (Hf) (Hr) and both handles (Hf) (Hr) attached and fixed to both ends of the door (D) whose handle shafts (10) project from the inner and outer surfaces. ) Is fixed, and has a pair of thrust bearings (Bf) (Br) that rotatably support the handle shaft (10).

Then, if the handle (Hf) (Hr) is rotated clockwise (clockwise) or counterclockwise (counterclockwise) from the inside and outside of the door (D), it is built into the door (D). The latch (12) of the installed case lock (11) appears and disappears, and the door (D) can be opened and closed. Reference numeral (13) is a through hole formed in the door (D). In the illustrated embodiment, a lever handle is used as the door opening / closing handle (Hf) (Hr), but a knob-type (so-called grip ball) handle may be used instead.

Among the various parts constituting the door handle, the handle shaft (10) is assembled and integrated into a square cross section to form a square shaft, which is fitted with a square hole (not shown) formed corresponding to the case lock (11). A pair of fixing screw receiving holes (14) are provided in the vicinity of both ends thereof.

FIG. 4 shows a pair of handles (Hf) (Hr) that are attached and fixed to the handle shaft (10) so as to be integrally rotated by the fixing screws (15) screwed into the fixing screw receiving holes (14). An elliptical boss (17) composed of a square mounting port (16) fitted to the handle shaft (10) as in ~ 6, and a flat surface (17b) parallel to a pair of arcuate surfaces (17a) facing each other. , A configuration including a circular cover flange (18) for covering the thrust bearings (Bf) (Br) described later, which are the same as each other.

However, of the two handles (Hf) (Hr), the fixing screw insertion hole (19) of the one (the right handle (Hf) in FIGS. 2 and 3) that is attached to the handle shaft (10) is circular. The fixing screw insertion hole (20) of the other (left handle (Hr) in FIGS. 2 and 3), which is also retrofitted to the handle shaft (10), is the axis (AA) of the handle shaft (10). The structure of both handles (Hf) (Hr) is small in that the position and adjustment of the handle shaft (10) can be adjusted by forming an elongated elliptical shape extending along the direction. Is different.

The pair of thrust bearings (Bf) and (Br) are all connected to the mounting seat (21) for the door (D) as shown in FIGS. 2, 3 and 7 to 12 and the central portion of the mounting seat (21). The movable side track board (track ring) (22) that is inserted and fitted so that it can rotate integrally with the handle (Hf) (Hr) and the mounting seat board (21) (cooperate). In order to hold (restrain) the movable side track board (22) in a retaining state, the fixed side track board (23) assembled and integrated with the mounting seat board (21) and the movable side track board (22). A ball inserted and set between the orbital planes (22a) and (23a) facing each other in a state of being orthogonal to the axis (AA) of the handle shaft (10) on the fixed side orbital board (23). A plurality of steel balls (24a) composed of a retainer (24) and held in the retainer (24) as a scattered distribution state (a total of 6 in the illustrated embodiment) form the raceway surfaces (22a) and (23a). By rolling, the sliding (friction) resistance at the time of rotation of the door opening / closing handle (Hf) (Hr) is reduced, and the possibility of rattling or abnormal noise is prevented.

Explaining the components of the thrust bearing (Bf) (Br) in detail, first, as is clear from FIGS. 13 to 16, the movable side racer board (race wheel) (22) is provided with a core cylinder (25) at the center. A large-diameter flange (26) is continuously and integrally projected from the outer peripheral surface of the core cylinder (25).

The number of the large-diameter overhanging flanges (26) may be one that forms an overall circular shape, but in the illustrated embodiment, a pair of dish-shaped notched recesses (27) facing the peripheral edge of the circle. Is given, so to speak, it is formed into a pair of facing arcs that remain in the divided state. (Α) indicates the arc length or the opening angle (central angle) of each overhanging flange (26).

(28) is a ball retainer receiving concave peripheral groove that opens inward and is formed by a notch at the overhanging base end portion of the flange (26) having a large diameter, and the bottom surface of the groove is the axis (A) of the handle shaft (10). It forms an orbital plane (22a) orthogonal to −A). The steel ball (24a) of the ball retainer (24) inserted and set inside the ball retainer receiving concave peripheral groove (28) rolls on the raceway surface (22a).

In that case, the ball retainer (24) is hermetically sealed from the movable side track board (22) by a separate fixed side track board (23) that closes its receiving concave peripheral groove (28) from the inside. It will be.

Further, the boss receiving cylinder (29) that receives the boss (17) of the door opening / closing handle (Hf) (Hr) from the overhanging portion of the flange (26) having the same large diameter is the core cylinder (25). It is continuously projected outward in the opposite direction.

Moreover, the inner peripheral surface of the boss receiving cylinder (29) is shaped into an elliptical shape corresponding to the boss (17) of the handle (Hf) (Hr), and the handle is placed inside the boss receiving cylinder (29). By inserting and fitting the bosses (17) of (Hf) and (Hr), the handle (Hf) (Hr) and the movable track board (22) can rotate integrally. (29a) shows a pair of arcuate surfaces facing each other in the boss receiving cylinder (29), and (29b) shows a pair of parallel flat planes facing each other.

Further, the circular outer peripheral surface of the boss receiving cylinder (29) in the movable side track board (22) faces an arc shape parallel to the elliptical arc surface (29a) formed on the inner peripheral surface thereof. A pair of engaging convex pieces (30) are continuously raised integrally. (Β) is the arc length or the opening angle (central angle) of each engaging convex piece (30).

The pair of engaging convex pieces (30) engage with the rotation angle regulating concave groove described later of the mounting seat (21) that accepts the pair of engaging convex pieces (30) to rotate the door opening / closing handles (Hf) (Hr). The moving angle will be regulated to a constant level.

Next, the mounting seat (21) of the thrust bearing (Bf) (Br) is a disk having a substantially U-shaped cross section that opens inward as shown in FIGS. The insertion port (31) for the boss receiving cylinder for letting out the boss receiving cylinder (29) of (22) is fitted with the pair of the arc-shaped overhanging flanges (26) facing each other in the movable raceway board (22). A flange receiving groove (32) is formed. The boss receiving cylinder insertion port (31) and the flange receiving groove (32) having a larger diameter are both circular.

Then, at the opening peripheral edge of the boss receiving cylinder insertion port (31), a pair of facing rotation angle regulating concave grooves (33) that receive the arc-shaped engaging convex pieces (30) in the movable side track board (22) are received. ) Is notched.

In that case, the pair of rotation angle regulating concave grooves (33) are also shaped so as to engage with the engaging convex piece (30) in a corresponding arc shape, but each rotation angle regulating concave groove is formed. The arc length or opening angle (central angle) (γ) of (33) is set to be relatively longer or wider than the arc length or opening angle (central angle) (β) of each engaging convex piece (30). Has been done.

Based on the length difference or the width difference, the movable side track board (22) provided with the engaging convex piece (30) and the door opening / closing handles (Hf) (Hr) supported by the movable side track board (Hr) are shown in FIG. From the common center line (OO) that divides the arc length or opening angle (center angle) (γ) of both rotation angle regulation concave grooves (33) into two equal parts, clockwise (clockwise) and half. It is regulated to rotate only within the same fixed angle range (preferably 17 degrees each) (θ) in the clockwise direction (counterclockwise).

Reference numeral (34) is a plurality of (total of 4 in the illustrated embodiment) locking claws projecting inwardly continuously and integrally as an overall radial symmetric distribution type from the circular peripheral edge of the mounting seat (21). , It is inserted and locked into the claw receiving notch described later of the fixed side track board (23), and is assembled and integrated with the fixed side track board (23).

At that time, a plurality of slits (split grooves) (35) distributed in a positional relationship sandwiching each of the locking claws (34) on the circular peripheral edge of the mounting seat (21) (also in the illustrated embodiment, a total of 8). ) Is formed in the notch, whereby the elastic locking claw (34) can be quickly and surely locked in the claw receiving notch.

The configurations of the mounting seats (21) described so far are the same for the pair of thrust bearings (Bf) and (Br), but differ only in the following points.

That is, the peripheral portion of the insertion port (31) for the boss receiving cylinder in the mounting seat (21) of either one of the two thrust bearings (Bf) (Br) (the left thrust bearing (Br) in FIGS. 8 and 10). A pair of long insertion leg cylinders (36) extending parallel to the axis (AA) of the handle shaft (10) and capable of penetrating and crossing the door (D) project inwardly and continuously. Has been done.

On the other hand, from the peripheral portion of the boss receiving cylinder insertion port (31) in the mounting seat (21) of the remaining other (right thrust bearing (Bf) in FIGS. 8 and 9), the long insertion leg cylinder A pair of short receiving legs (37) that receive (36) are also projected inwardly and continuously, and the insertion leg tube (36) and the receiving leg tube (37) face each other in a corresponding relationship.

Then, one long insertion leg tube (36) is passed through the door (D), inserted into the other short receiving leg tube (37), fitted, and then conversely long from the short receiving leg tube (37). By screwing the fixing screws (38) into the insertion leg cylinder (36), the mounting seats (21) of both thrust bearings (Bf) and (Br) can be connected and integrated. There is.

In that case, the pair of the insertion leg cylinder (36) and the receiving leg cylinder (37) are common to divide both rotation angle regulating concave grooves (33) of the mounting seat (21) into two equal parts. Since it is parallel to the virtual line orthogonal to the center line (OO) and is located at a position corresponding to the dish-shaped notched groove (27) of the movable side track board (22), the movable side track board (22). ), And there is no risk of hindering the rotation of the track board (22).

Further, the fixed side track board (23) of the thrust bearing (Bf) (Br) is a flat disk having a small diameter that fits into the mounting seat board (21) as shown in FIGS. 26 to 28 from the inside, and has a circular shape. On the peripheral edge portion, a plurality of claw receiving notches (39) for receiving the locking claws (34) protruding from the circular peripheral edge portion of the mounting seat (21) having a diameter larger than this are formed with the locking claws (34). It is provided in the corresponding overall radial symmetry distribution type.

A plurality of the above-mentioned locking claws (34) are inserted into the claw receiving notches (39) to be locked, and a large-diameter circular mounting seat plate (21) and a small-diameter fixed-side track plate (23) covered by the mounting seat plate (21). ) Is assembled and integrated, the movable side track board (22) and the ball retainer (24) are connected to the mounting seat board (21) and the fixed side track board (23) in the inward and outward directions as shown in FIGS. 8 to 10. So to speak, it will be restrained in the pinched state.

Reference numeral (40): It is positioned corresponding to the notch recessed groove (27) of the above, and the insertion leg tube (36) on the mounting seat (21) side or the receiving leg tube (37) thereof is allowed to escape.

Further, (41) is a circular core cylinder insertion port for letting out the core cylinder (25) of the movable side track board (22), and an opening is formed in the central portion of the fixed side track board (23). There is. The peripheral portion of the core cylinder insertion port (41) in the fixed side track board (23) is the groove bottom surface (track surface) (22a) of the ball retainer receiving concave peripheral groove (28) in the movable side track board (22). As the raceway surface (23a) facing the ball retainer (23a), it also forms a plane orthogonal to the axis (AA) of the handle axis (10), and allows the steel ball (24a) held by the ball retainer (24) to roll.

As is clear from the above description, among the various parts constituting each thrust bearing (Bf) (Br), the movable side track board (22) and the fixed side track board (23) other than the mounting seat board (21) are used. ) And the ball retainer (24) are the same as each other in the pair of thrust bearings (Bf) (Br), and can be used without distinction between them.

In the illustrated embodiment, among the various components constituting the thrust bearing (Bf) (Br), all the components other than the steel ball (24a) are the same polyacetal (trade name: Duracon) or FRP (trade name: Duracon). It is made from various fiber reinforced plastics such as glass fiber and carbon fiber) and other high-strength synthetic resins.

The building door handle of the illustrated embodiment has the above configuration, and a pair of thrust bearings (Bf) (Br) are assembled in advance as follows in the installation work on the door (D).

That is, as shown in FIGS. 29 and 30, one of the thrust bearings (Br) can be moved to the boss receiving cylinder insertion port (31) of the mounting seat (21) overhanging the long insertion leg cylinder (36). The boss receiving cylinder (29) of the side bearing board (22) is engaged by the engaging convex piece (30) on the track board (22) side with the rotation angle regulating concave groove (33) on the seat board (21) side. The ball retainer (24) is inserted and set in the ball retainer receiving concave peripheral groove (28) of the movable side track board (22), and the ball retainer (24) is inserted and fitted in the same manner. ) Is inserted and locked into the mounting seat plate (21) so as to fit the fixed side race plate (23), and the race plate (23) and the seat plate (21) are engaged with each other. Assemble and fix.

As for the remaining thrust bearing (Bf), as shown in FIGS. 31 and 32, the movable side of the mounting seat (21) overhanging the short receiving leg cylinder (37) to the boss receiving cylinder insertion port (31). The boss receiving cylinder (29) of the track board (22) is engaged by the engaging convex piece (30) on the track board (22) side with the rotation angle regulating concave groove (33) on the seat board (21) side. The ball retainer (24) is inserted and set in the ball retainer receiving concave peripheral groove (28) of the movable side track board (22), and the ball retainer (24) is inserted and set in the state. The fixed side track board (23) is inserted and locked into the mounting seat board (21) so as to be fitted, and the track board (23) and the seat board (21) are assembled. Fix it.

The order of assembling the components of each thrust bearing (Bf) (Br) is not limited to the above order, and can be freely determined.

Then, as suggested in FIGS. 33 and 34, the long insertion leg cylinder (36) provided by one of the thrust bearings (Br) in the assembled state is inserted into the through hole (13) of the door (D), and the door (D) is inserted. ) Is inserted and fitted into the short receiving leg tube (37) provided by the remaining thrust bearing (Bf), and then inserted from the receiving leg tube (37). By screwing the fixing screw (38) into the inside of 36), both thrust bearings (Bf) (Br) are assembled and integrated so as to be sandwiched between the inner and outer surfaces of the door (D) as shown in FIGS. 7 to 12. To do.

Then, as shown in FIGS. 35 to 37 (the door is not shown for convenience of explanation), a handle shaft (10) in which a door opening / closing handle (Hf) is attached to one end of a fixed length (L) by a fixing screw (15). ) From the core tube (25) of the movable side track board (22) in one of the thrust bearings (Bf), the boss (17) of the handle (Hf) is the boss receiving tube (22) on the track board (22) side. In order to properly fit with 29), insert the core cylinder (25) of the same movable side track board (22) in the other thrust bearing (Br) into the crossing state of the door (D) and penetrate the other thrust. The handle (Hr) for opening and closing the door on the position adjustment side is attached to the other end of the handle shaft (10) overhanging from the bearing (Br), and the boss (17) is also the movable side of the other thrust bearing (Br). It is inserted so that it fits correctly with the boss receiving cylinder (29) of the track board (22), and is retrofitted with a fixing screw (15). The position of the handle (Hr) may be adjusted by using the fixing screw insertion hole (20).

Then, in the construction completed state as shown in FIGS. 1 to 3, the opening / closing handles (Hf) and (Hr) are turned clockwise (clockwise) or counterclockwise (left) from the inside and outside of the door (D), respectively. By rotating the latch (12) by a certain angle range (θ) (17 degrees each in the illustrated embodiment), the latch (12) is made to appear and disappear, and is installed corresponding to the door frame (not shown). It can be locked and unlocked with the existing strike, and while holding the handle (Hf) (Hr), push or pull along the axis (AA) of the handle axis (10). As a result, the door (D) can be opened and closed.

In that case, the movable side track board (22) and the fixed side track board (23) sandwiching the ball retainer (24) in both thrust bearings (Bf) (Br) are the mounting seats of the bearings (Bf) (Br). The mounting seat (21) is further covered by the cover flange (18) of the door opening / closing handles (Hf) (Hr), so to speak, because it is covered in a surrounding state by the board (21). Excellent appearance cosmetic effect (design) and dustproof effect can be obtained.

Further, when the door (D) is opened and closed, the handle (Hf) (Hr) is repeatedly and strongly pushed to operate, and when the door (D) is installed, the handle (Hf) (Hr) is strongly pushed to assemble. Even so, the thrust bearings (Bf) (Br) bearing the handles (Hf) (Hr) exhibit load bearing capacity and the balls (24a) held by the ball retainer (24). ) Is in point contact with the raceway planes (22a) and (23a) forming a plane orthogonal to the axis (AA) of the handle shaft (10) on the movable side track board (22) and the fixed side track board (23). Since the raceway surfaces (22a) and (23a) are rolled, the sliding (friction) resistance of the handles (Hf) and (Hr) is reduced, and the bearings (Hf) and (Hr) are smoothly and stably rotated. Therefore, there is no risk of rattling, bearing indentation, abnormal noise, etc., and the durability is improved.

(10) ... Handle shaft (15) (38) ... Fixing screw (17) ... Boss (17a) (29a) ... Arc surface (17b) (29b) ... Flat surface (18) ) ・ ・ ・ Cover flange (21) ・ ・ ・ Mounting seat (22) ・ ・ ・ Movable side track board (23) ・ ・ ・ Fixed side track board (22a) (23a) ・ ・ ・ Track surface (24) ・・ ・ Ball retainer (24a) ・ ・ ・ Steel ball (25) ・ ・ ・ Core cylinder (26) ・ ・ ・ Overhanging flange (28) ・ ・ ・ Ball retainer receiving concave peripheral groove (29) ・ ・ ・ Boss receiving cylinder ( 30) ・ ・ ・ Engagement convex piece (31) ・ ・ ・ Insertion port for boss receiving cylinder (32) ・ ・ ・ Flange receiving groove (33) ・ ・ ・ Rotation angle regulation concave groove (34) ・ ・ ・ Locking Claw (35) ・ ・ ・ Slit (36) ・ ・ ・ Insertion leg tube (37) ・ ・ ・ Receiving leg tube (39) ・ ・ ・ Claw receiving notch (41) ・ ・ ・ Insertion port for core tube (D) ・・ ・ Door (L) ・ ・ ・ Length (Bf) (Br) ・ ・ ・ Thrust bearing (Hf) (Hr) ・ ・ ・ Door opening / closing handle (AA) ・ ・ ・ Axis (OO) ・・ ・ Center line (bisection line)
(Α) (β) (γ) ・ ・ ・ Arc length (opening angle)
(Θ) ・ ・ ・ Rotation angle range

Claims (8)

A handle shaft (10) to which a pair of door opening / closing handles (Hf) (Hr) is attached to both ends of a fixed length (L) penetrating the door (D).
The mounting seat (21) fixed to the door (D) and the movable mounting seat (21) are inserted and fitted into the center of the mounting seat (21) so that they can rotate integrally with the handles (Hf) (Hr). The fixed side assembled and integrated with the mounting seat plate (21) in order to keep the movable side bearing plate (22) in a retaining state in combination with the side race plate (22) and the mounting seat plate (21). The track discs (23) and the track planes (22a) and (23a) that are orthogonal to the axis (AA) of the handle shafts (10) on both track discs (22) and (23) face each other. By a pair of thrust bearings (Bf) (Br) consisting of a plurality of balls (24a) rotatably inserted and set in between.
A bearing device for a door handle for a building, characterized in that it is bearing so that it can rotate to the door (D). A required number of large-diameter flanges (26) are continuously and integrally projected from the core cylinder (25) of the movable side track board (22) forming each thrust bearing (Bf) (Br).
Insert and set the retainers (24) of the scattered steel balls (24a) into the inside of the ball retainer receiving concave peripheral groove (28) that is cut out at the overhanging base end of the flange (26) and opens inward. , While assembling the fixed side track board (23) from the inside in a closed state,
Similarly, the inner peripheral surface of the boss receiving cylinder (29), which continuously and integrally projects outward from the middle of the flange (26), has an elliptical shape that corresponds to the boss (17) of the door opening / closing handle (Hf) (Hr). Shaped into
The boss (17) of the handle (Hf) (Hr) is inserted and fitted into the elliptical inside of the boss receiving cylinder (29) on the movable side track board (22) so as to be integrally rotatable. The bearing device for a building door handle according to claim 1. From the outer peripheral surface of the boss receiving cylinder (29) in the movable side track board (22) of each thrust bearing (Bf) (Br), an arc shape parallel to the elliptical arc surface (29a) formed on the inner peripheral surface thereof. While raising the opposing pair of engaging convex pieces (30),
A flange receiving groove (32) that fits with the large-diameter overhanging flange (26) of the track board (22) and an insertion port (31) for a boss receiving cylinder having a diameter smaller than that of the flange (26) are attached. In addition to being formed in the center of the seat (21),
A pair of corresponding rotation angle regulating recesses that accept the engaging convex piece (30) on the raceway plate (22) side to the opening peripheral edge of the insertion port (31) for the boss receiving cylinder in the mounting seat (21). The groove (33) is cut out in an arc shape having an arc length (γ) longer than the arc length (β) of the engaging convex piece (30).
The door opening / closing handle (Hf) (Hr) in which the boss (17) is inserted and fitted into the boss receiving cylinder (29) of the track board (22) is inserted into the arc length (β) of the engaging convex piece (30). ) And the arc length (γ) of the rotation angle regulation concave groove (33). The bearing device for a building door handle according to claim 2. The third aspect of claim 3, wherein a certain angle range (θ) in which the door opening / closing handle (Hf) (Hr) can rotate is set to 17 degrees in the clockwise direction and 17 degrees in the counterclockwise direction. Bearing device for door handles for buildings. The mounting seat (21) of each thrust bearing (Bf) (Br) is formed into a disk having a substantially U-shaped cross section that opens inward, and the fixed side track disc (23) is closed to the mounting seat (21) from the inside. As a disc with a small diameter to fit
A plurality of locking claws (34) are projected inward as an overall radial symmetry distribution type from a large-diameter circular peripheral edge portion covering the fixed side track board (23) in the mounting seat board (21). ,
A plurality of claw receiving notches (39) are formed correspondingly on the circular peripheral edge of the track board (23).
By inserting the locking claw (34) on the mounting seat (21) side into the claw receiving notch (39) on the track disc (23) side and locking the mounting claw (21) and the fixed side race disc (21). 23) The bearing device for a door handle for a building according to claim 1, wherein the bearing device is assembled and integrated with the building door handle. A pair of long parallel insertion leg cylinders (36) are continuously and integrally projected from the mounting seat (21) in one of the thrust bearings (Br) toward the other thrust bearing (Bf).
In addition to correspondingly projecting the short receiving leg tube (37) of the insertion leg tube (36) from the mounting seat (21) of the other thrust bearing (Bf) toward one of the above thrust bearings (Br). ,
The insertion leg tube (36) is passed through the door (D), inserted and fitted into the receiving leg tube (37), and fixed from the receiving leg tube (37) to the inside of the insertion leg tube (36). The bearing device for a door handle for a building according to claim 1, wherein the pair of thrust bearings (Bf) (Br) are connected and integrated by screwing a screw (38). The movable side track board (22), the fixed side track board (23), and the ball retainer (24) other than the mounting seat board (21) constituting each thrust bearing (Bf) (Br) are both thrust bearings (Bf). The bearing device for a building door handle according to claim 1, wherein the bearing device is the same as each other in (Br). Of the mounting seat (21), movable side track board (22), fixed side track board (23), and ball retainer (24) constituting each thrust bearing (Bf) (Br), the ball (24a) is excluded. The bearing device for a building door handle according to claim 1, wherein all the other parts are made of the same polyacetal, FRP, or other high-strength synthetic resin.

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